Method and milling device for insulating wall erection in ground

FIELD: mining and construction, particularly dredgers or soil-shifting machines for special purposes.

SUBSTANCE: method involves lowering milling device provided with rotating disc cutter installed on frame in ground to excavate ground material in area under disc cutter; cutting slot in ground by means of disc cutter; filling the slot with hardening liquid through frame in at least one disc cutter location area; introducing gas, particularly air, in slot through frame into at least one disc cutter location area.

EFFECT: increased insulating wall quality.

10 cl, 4 dwg

 

The technical field to which the invention relates.

The present invention relates to a method of construction in the ground wall insulation in accordance with the restrictive part of paragraph 1 of the claims, in which the milling device with at least one driven in rotation of the disk cutter is lowered into the ground, so you develop a soil material under the disk cutter, and perform the milling gap and enter into the gap of a solidifying liquid.

The invention relates to a milling device for the erection of a ground wall insulation in accordance with the restrictive part of item 8 claims, containing a frame, at least one disc cutter mounted on the frame for rotation, and drive by which the disk cutter is driven into rotation, which may be disposed under the disk cutter clay material with the formation of cracks.

The level of technology

The method of construction in the ground insulation of the walls is known from patent document FRG No. 19530827 C2. In this so-called two-stage method, the first stage produces the driving slit pockets, and developed with this clay material is transported from the cracks on the surface. The resulting gap is filled reference suspension to create a support and the support is Jania slit. In the second stage, after sinking slit it serves solidified suspension, which replaces the reference suspension.

From patent document FRG No. 4141629 C2-known one-step method, in which the gap from the very beginning supported solidified suspension, prepared by mixing the excavated soil material with a hardening liquid to the surface.

To make this known method can be used milling device for the erection of a ground wall insulation, known from the patent document FRG No. 3424999 C2. This device contains a frame and installed it from below, i.e. from the soil, driven in rotation of a disk milling cutter. Developed disk cutters clay material is directed to the suction device mounted on the frame, and transported to the surface. This device is the closest to the claimed and accepted as a prototype.

From the patent application Germany No. 10308538 known another method of construction in the ground wall insulation. In this way solidified slurry prepared outside the gap, and directly into the cracks. To do this, we develop the disk cutters ground material is mixed with a solidifying liquid "on the spot" through the impact of the disk cutters with getting tverdova a mixture of soil with liquid. If this way is mixed with a solidifying liquid designed for borrow material at least partially left in the cracks, where it can harden for the formation of the insulating wall. Due to this eliminates the need for costs to rise above the surface just developed a soil material by means of the pumping device. This method is the closest to the claimed and accepted as a prototype.

For filing in the gap of the solidified liquid from the patent application Germany No. 10308538 know the feeder is located on the frame of the milling device.

The invention

The problem to which the present invention is directed, is to create a method and device for the erection of a ground insulating walls, which provide the construction of the insulating walls of a particularly high quality.

In accordance with the invention the solution of this problem is achieved by a method having the features in claim 1 of the claims, and devices with signs on paragraph 8 of the claims. The preferred embodiments set forth in the respective dependent claims.

The method according to the invention is characterized in that the slit in a certain way, introduce a gas, particularly air.

The basic idea of what bretania is when milling a slit in addition to solidifying liquid in it serves gas. This gas goes into the slot and moves up in the cracks suspension. This movement of gas contributes a particularly good mixing in the cracks of the solidified suspension and provides for the construction of insulating the walls of a particularly high quality. In particular, the gas supply can be offset larger and/or heavier suspended particles and obtain a particularly homogeneous suspension, which leads to a particularly homogeneous insulating the walls of a high quality. In addition, due to the supply of gas to prevent premature solidification of the suspension, especially in some places.

In the context of the invention under moisture curing or solidifying the suspension has a mean suspension, which is prepared by mixing the solidified liquid from the developed soil material. Solidifying the suspension is prepared directly in the slit, i.e. the mixing of the solidified liquid soil material occurs in the gap, in particular in the field of disc cutters and through the impact of the disk cutters.

In contrast drill technique in which the axis of rotation of the drill device coincides with the direction of flow, the pic is b according to the invention is a method of penetration of cracks milling, a device for excavation made in the form of a milling device with at least one disc cutter. This at least one disc cutter rotates around an axis located at an angle to the feed direction of the milling device, that is, not parallel to it. According to the invention at least one disc cutter is driven into rotation by means provided for this drive. Preferably on a milling device from the ground, there are two drive disk milling cutter with parallel axes or two pairs of drive disk milling cutters with parallel axes.

In principle, enter into the slit gas can be selected in any composition. However, the most economical use of air, which may, for example, zakachivatsja from the environment. Gas is injected appropriately under pressure.

In principle it is possible to feed gas and/or solidifying the liquid in the gap anywhere. However, for a particularly effective mixing is preferably a gas and/or solidifying the liquid in the bottom of the slit. For purposes of input gas and/or solidified liquid in principle can be provided by input devices, performed separately and/or separated from the milling device. For example, in addition to the milling device in the slot can be shared which I pipe input or a separate pipe input for gas and a solidifying liquid. However, according to the invention in a particularly preferred embodiment, the gas and/or solidified liquid is injected through the frame of the milling device, in particular in the field of disc cutters. Due to the introduction of gas and/or solidified liquid in this area can be most effectively used blending action of the rotating disk cutters and to be further improved the quality of constructed wall insulation. According to this embodiment, the input device, gas and/or solidified liquid best way is located on a milling device, in particular on its frame. Preferably the gas and/or solidified liquid is injected in between the two disc cutters or two pairs of disk milling cutters with parallel axes. Gas and/or solidifying the liquid can be fed to one or more places of entry into the slot.

In principle it is possible to send the input gas stream and/or hardening of the liquid in the gap in any way. In this context, the flow of input materials mean that the thread, which is formed directly on the input, that is, when the output from the corresponding input device, and which can take place as and when the fixed disk mills and stationary milling device. In particular, it does not mean the movement of gas or liquids and due to perturbations from the disk cutters or actuation forces.

According to the invention in a particularly preferred embodiment, the flow of the input gas and/or input of a solidifying liquid is directed to a blade. Due to this possibility is especially effective to clean a blade from developed soil material that improves the milling process. Accordingly, the flow of the input gas and/or solidified liquid is directed at least approximately in the direction of feed of the milling device. In particular, the flow can be tangentially to at least one disc cutter, preferably to two disk cutters or two pairs of disk cutters, i.e. in contact with them on a tangent. For this weekend openings of input devices preferably located midway between the disk milling cutters with parallel axes.

The following are particularly preferred embodiment, the gas is injected into the gap with the flow profile, which in particular concentrically surrounds the flow profile of a solidifying the liquid at its input or which in particular concentrically surrounded by this flow profile of a solidifying liquid. In this case, the flow profile is meant perpendicular to the flow direction of its cross section at the point of introduction of gas and/or solidified liquid. According to this example, the domestic is also provided, the flow of gas and solidified fluid at least partially surround each other. This input device can be provided, for example, the annular nozzle. Particularly preferably, the gas is introduced concentrically around the outside fluid flow. In this case, increasing the power jet of fluid flow and, in particular, is achieved by increasing the distance of the spray.

In principle, the gas may be injected into the gap at any state drive milling device. However, in a particularly preferred embodiment, the gas is injected when lowering and/or when removing milling device, in particular when at least one of a disk milling cutter. Can also be provided at the gas inlet to suspend the movement of the milling device in the feed direction, that is, not to make it lower or extraction. In principle, the gas may continue to be submitted and after the complete removal of the milling device from the gap.

According to another embodiment, the gas is injected into the crack under pressure, which is regulated depending on the actual depth of the milling device. This decision is of particular advantage in the case when gas is injected into the gap through the frame of the milling device, that is, in place of the input, which depends on the position of the milling device along the depth of This solution allows to take into account the hydrostatic pressure in the gap at different positions of the milling device according to the depth and to introduce the gas at least under approximately constant pressure relative to the pressure medium, environmental milling device. However, the gas pressure may vary, for example exceeding or falling behind in magnitude proportional to the hydrostatic pressure.

Next, in a particularly preferred embodiment, the solidified liquid is mixed with a developed soil material, particularly through the impact of disk cutters, with the formation of the solidified suspension. Thus, in this example implementation, the suspension is prepared "on the spot", i.e. in the gap and not on the surface. When this disk cutter is used for development of soil material, and the subsequent mixing of this soil material with a solidifying liquid.

Milling device for the erection of a ground wall insulation in accordance with the invention differs in that it is provided by the feeder gas to enter the gas in the gap in a certain way. This device provides special advantages in the implementation of the method according to the invention. In the context of the invention under the input in a certain way mean that the gas purposefully fed into the gap through intended for this device, and not just, for example, is captured along with the milling device in its depth, and then freely available. The feeder is Aza may also be called by an input device of the gas.

To achieve a particularly good mixing of the suspension according to the invention can be provided that the feeder strip provided with at least one nozzle of the gas inlet, which is located on the frame, in particular in the field of disc cutters. Preferably, the gas injection nozzle is located in the middle between two circular cutters or two pairs of disk milling cutters with parallel axes.

Next, in a particularly preferred example of execution provided by the feeder fluid to enter into the gap of a solidifying liquid, and the device fluid supply is provided with at least one nozzle liquid inlet, which is located on the frame, in particular in the field of disc cutters. The feeder fluid may also be called by an input device for solidifying liquid. Accordingly, the nozzle liquid inlet is located in the middle between two circular cutters or two pairs of disk cutters, preferably with parallel axes.

Especially the big range of gas flow and/or fluid can be achieved due to the fact that the gas injection nozzle is preferably in the ring and/or concentrically surrounds the nozzle liquid inlet or surrounded this nozzle liquid inlet preferably on the ring and/or concentric. For this purpose, the nozzle of the gas inlet and/or forsun the and input fluid accordingly made in the form of an annular nozzle or nozzles in the form of a segment of a ring.

According to the invention can be provided that the gas and/or solidified liquid is introduced into the slot in one place or in several separate locations. In that case, when provided input into the slit in several places, this can be provided by multiple input devices, especially multiple injectors input.

To create a gas stream to enter the gas in the gap in a certain way can be provided that the feeder strip provided with a device for generating gas under pressure outside the slit. The device for generating gas under pressure may represent, for example, a pump, in particular a piston pump and/or accumulator pressure. Preferably, the device for generating gas under pressure is used to discharge in the air gap of the environment.

Especially good cleaning at least one disc cutter from the ground material and due to this particularly efficient milling process can be achieved due to the fact that the gas injection nozzle and/or nozzle liquid inlet is directed by at least one disc cutter. Preferably the gas flow from the nozzle of the gas inlet and/or fluid flow from the nozzle liquid inlet passes tangentially to the disk cutter. In particular, these flows are also tangentially to the two adjacent drive the new mills, that is tangentially in contact with them.

The gas injection nozzle and/or nozzle of the input fluid can be, for example, the hole of the round or slotted cross-section.

List of figures

Next, with reference to the accompanying drawings will be described in detail preferred embodiments of the invention. In the drawings:

figure 1 depicts the milling device in front view with a partial cut

figure 2 depicts a view in perspective and partial section of the gas supply nozzle and the nozzle fluid supply located on the frame of the milling device in another example implementation,

figure 3 depicts in side view a frame of the milling device in another example implementation,

figure 4 depicts a partial view in section along the line a-a in figure 3.

The implementation of the invention

The milling device 10 for the erection of a ground wall insulation is shown in figure 1. It contains a frame 20 on which side of the ground are two disk cutter 12, 12', mounted for rotation. The disk cutter 12, 12' are made each in the form of a pair of two separate disk cutters arranged coaxially one behind the other perpendicular to the plane of the drawing. On a circumferential periphery of the disk cutter 12, 12' is provided by milling the teeth 13, and the hinged teeth 14, which can turn lane is anticolana the plane of the drawing.

For the rotational drive of the two disk cutter 12, 12' with parallel axes on the frame 20 includes two actuator 15, 15', made in the form of hydraulic motors, to which hydraulic fluid is supplied via the supply hose 40.

By lowering the milling device 10 in the direction 80 of the filing and simultaneous drive of the disk cutter 12, 12' in the ground 3 is formed by milling the slot 1 is essentially rectangular cross-section.

In addition, the milling unit is equipped with a feeder fluid intended to enter into the slot 1 of a solidifying liquid. This device fluid supply includes a supply pipe or channel 68 for fluid, which departs from the not shown in the drawings, the hydraulic pump and is held inside the guide rod 33 of the frame 20 in the direction of 80 submission to the frame 20 where the end of the nozzle or nozzle 60 of the input fluid. The nozzle 60 of the liquid inlet is located in the middle between the disk cutters 12, 12' so that the liquid stream emerging from it in the direction of 80 supply, tangentially in contact with the teeth 13, 14 of the two adjacent disc cutters 12, 12' and cleans them leaching from the developed soil material.

The milling device is also equipped with a feeder gas, which can also be called by an input device of the gas. This feeder gas contains gas or CH is l 58, departs from the not shown in figure 1 the device is generating gas under pressure located outside the slit 1, and is held inside the guide rod 33 to the frame 20 where the end of the nozzle or nozzle 50 of the input gas. The nozzle 50 of the input gas is made in the form of an annular nozzle surrounding the nozzle 60 of the input fluid, which is made round in cross section. Due to this arrangement, the nozzle 50 of the input gas is also located midway between the disk cutters 12, 12' so that the exiting gas flow is directed tangentially to the teeth 13, 14 of the two disk cutter 12, 12'. When this gas stream is surrounded by a ring of fluid flow.

The frame 20 is designed so that its cross section substantially smaller than the cross-section milling of both the disk cutter 12, 12'. However, in the disk cutter 12, 12' and over them essentially without interference from the geometry of the frame 20, there may be mixing of soil material developed by disk milling cutters 12, 12' at the bottom of the slit with a solidifying liquid injected through the nozzle 60 of the input fluid.

Partial view of the milling device in another example implementation shown in figure 2. The drawing shows a frame 20 of the milling device 10 located on the nozzle 50 of the gas inlet and the nozzle 60 of the input fluid. For illustrative purposes n is 2 is not shown in disk milling machines and drives.

For feeding nozzle 60 of the input fluid in the frame 20 provides a supply channel 68 of the fluid supply. The nozzle 60 liquid inlet formed at the terminal hole in the element 65 of the nozzle liquid inlet, made essentially cylindrical. In the input area of the fluid flow in connection with the supply channel 68 element 65 of the nozzle liquid inlet has an area 62 in the form of a truncated cone tapering reduced cross-section. In the flow direction to that of the conical section 62 adjacent the cylindrical section 64, the end of which the nozzle 60 of the input fluid. The cylindrical section 64 and the conical section 62 of the element 65 of the nozzle coaxially, and a Central axis parallel to the direction 80 of the feed milling device 10.

For supply nozzle 50 of the input gas in the frame 20 provides a supply channel 58 of the gas supply. The supply channel 58 of the gas flow is parallel to the direction of 80 supply, while the channel 68 of the fluid is at an angle to this direction.

The nozzle 50 of the input gas made in the form of a circular annular nozzle surrounding the nozzle 60 of the input fluid, is made round in cross section. The nozzle 50 of the input gas is made between the outer wall of the cylindrical section 64 item 65 of the nozzle liquid inlet and a cylindrical inner wall of the through hole 52 ring perfo the new element 51, which surrounds the cylindrical section 64 item 65 of the nozzle liquid inlet in its lower region. Perforated element 51, which may also be called a replaceable nozzle holder, removable mounted on the frame at the bottom.

For gas supply to the nozzle 50 of the input gas in the frame 20 is formed an annular chamber 53 surrounding ring cylindrical section 64 and the conical section 62 of the element 65 of the nozzle liquid inlet above the perforated element 51 and soamsawali with the supply channel 58 of the feed gas through the opening in the outer annular wall. Within this annular chamber 53 is a cylindrical element 55, the ring is made of four through holes 56 a round cross-section. This through hole 56 is shifted by 90° relative to each other about the axial direction coincident with the direction 80 of the feed. Through the through holes 56 of the gas from the annular chamber 53 can flow radially inward into the intermediate space 57 formed between the cylindrical element 55 and the cylindrical section 64 and a tapered section 62 of the element 65 of the nozzle liquid inlet. From this intermediate space 57 gas can flow forth in the axial direction along the element 65 of the nozzle insert a liquid into the through hole 52 of the perforated element 51, the nozzle 50 of the input gas.

From the entrance e is ment 65 injector liquid inlet at its conical section 62 is equipped with advanced shoulder 71, he rests on the upper end side of the cylindrical element 55. In turn, the cylindrical element 55 rests with its lower face side of the perforated element 51. For maintenance of this unit has an annular perforated element 51 can be removed from the frame 20, after which the cylindrical element 55 is released and can be removed in the axial direction. Then released the element 65 of the nozzle liquid inlet.

3 and 4 depict the frame 20 of the milling device in the following sample run. As can be seen in figure 3, from the ground frame 20 provided with a reference sheet 90 with a tapering cross-section, where the two sides established a disk milling cutter, not shown in the drawing.

Milling device in the exemplary embodiment according to Fig 3 and 4 differs from the run of figure 2 is essentially the fact that the annular perforated element 51 is provided by an annular sealing gasket 92, adjacent to the outer wall of the cylindrical section 64 of the nozzle liquid inlet. When the gas pressure in the feeder gas exceeds the hydrostatic pressure of the liquid at the nozzle 50 of the input gas, this sealing gasket 92 is opened, and the gas can flow from the annular chamber 53 to the nozzle 50 of the gas inlet and out into the slot. If the pressure of the gas in the source gas is less than hydros adicheskogo fluid pressure, seal 92 is closed and prevents the penetration of the suspension into the feeder gas.

In addition, in contrast to the exemplary embodiment of figure 2 in the example in figure 4, the nozzle 50 of the gas inlet in its lower region is made not cylindrical, but conical.

1. The method of construction in the ground wall insulation, in which a milling device (10) with at least one fixed on the frame (20) and driven in rotation of the disk cutter (12, 12') is lowered into the ground (3), so while developing a soil material under the disk cutter (12, 12'), performed by milling the slot (1) and injected into the slot (1) solidifying the liquid, characterized in that the solidified liquid is introduced into the slot (1) through the frame (20) in region at least one disc cutter (12, 12') and the slot (1) through the frame (20) in the region, at least one disc cutter (12, 12') in a certain way, introduce a gas, particularly air.

2. The method according to claim 1, characterized in that the flow of input gas and/or input of a solidifying liquid is directed to a blade (12, 12').

3. The method according to claim 1 or 2, characterized in that the gas is introduced into the slot (1) with a flow profile which surrounds, in particular concentric, the flow profile of a solidifying the liquid at its input, or surrounded by, in particular concentric, this flow profile solidified W is dcosta.

4. The method according to claim 1 or 2, characterized in that the gas is injected when lowering and/or when removing the milling device (10), in particular when operating at least one disc cutter (12, 12').

5. The method according to claim 1 or 2, characterized in that the gas is introduced into the slot (1) under pressure, which is regulated depending on the actual depth of the milling device (10).

6. The method according to claim 1 or 2, characterized in that the solidified liquid is mixed with a developed soil material, particularly through the impact of disk cutters, with the formation of the solidified suspension.

7. Milling device for the erection of a ground wall insulation in particular through the method, as claimed in any one of claims 1 to 6, containing a frame (20), at least one disc cutter (12, 12')mounted on the frame (20) with the possibility of rotation, the actuator (15, 15'), whereby the disk cutter (12, 12') is driven into rotation, which may be disposed under the disk cutter (12, 12') of the clay material with the formation of cracks, and the feeder fluid to enter in the crack of a solidifying liquid, characterized in that the feeder fluid is supplied, at least one nozzle (60) input hardening liquid, which is located on the frame (20) in the area of the disk cutters (12, 12'), while milling device contains the mouth of austo gas supply for a given input gas into the slot (1), equipped with at least one nozzle (50) of the gas inlet, which is located on the frame (20) in the area of the disk cutters (12, 12').

8. Milling device according to claim 7, characterized in that the nozzle (50) input gas preferably koltseobrazno and/or concentrically surrounds the nozzle (60) input fluid or surrounded this nozzle (60) input fluid preferably koltseobrazno and/or concentric.

9. Milling device according to claim 7 or 8, characterized in that the feeder strip provided with a device for generating gas under pressure outside the slit.

10. Milling device according to claim 7 or 8, characterized in that the nozzle (50) input gas and/or nozzle (60) of the input fluid is directed, at least on a side milling cutter (12, 12').



 

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The invention relates to reclamation and agricultural machinery and can be used for slicing temporary drainage network when draining swamps and wetlands

FIELD: open-cast mining.

SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.

EFFECT: improved operating capabilities of device.

5 cl, 5 dwg

FIELD: construction of industrial and civil buildings on soft and sedimentary ground, excavation of profiled trenches and foundation pits.

SUBSTANCE: method involves perforating and expanding ground with operational disc-like tool mounted on axis by stepwise increasing cross-section of initial cavity formed by operational tool including n discs. Number of discs and shape thereof depend on mechanical ground quality and predetermined trench profiles. The stepwise cavity expanding is performed by increase in disc number and by disc diameters decrease starting with one having the greatest diameter. Trench walls are strengthened during or after ground puncturing or expanding by introducing reinforcing material and/or plasticizer. Operational tool has low-adhesion coating.

EFFECT: reduced labor inputs, decreased cost.

3 cl, 1 ex, 6 dwg

FIELD: dredgers or soil-shifting machines for special purposes, particularly to cut chaps in ground.

SUBSTANCE: device comprises at least one cutter brought into rotation and at least one the first cutting member to cut ground during cutter rotation in the first direction. At least one the second cutting member for ground cutting rotated in the second direction opposite to the first one is installed on the cutter. At least one of the cutting members may be shifted from the first ground cutting position to the second diverted position. Executive tool to shift the cutting member between the first and the second positions is also provided.

EFFECT: increased cutting ability in both rotational directions, prevention of excessive cutting member wear.

12 cl, 2 dwg

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