Device for forming ramming piles in the ground

 

(57) Abstract:

The invention relates to the construction, namely, devices for the formation of piles in the ground. Device for forming ramming piles in the soil contains a working body, placed ahead of cylindrical pipes and drums drive placed in the upper end of the pipe, hole in your body, connecting the inner and outer surface of the working body, which is covered by the stock. Peripheral part of the working body is attached to the front part of the tube, and the Central - to the shaft and is moveable. What's new is that the rod is made movable around its longitudinal axis, with one of the structural members, such as pipe, has two stops, and the second element is rod - one of the emphasis placed between two lugs of the other element limiting the rotation of the rod relative to the tube. The technical result of the invention is to simplify the manufacture of the device, improving reliability, providing manageability bypass the concrete mix through the working body and compaction of the concrete mix, the simplification of the process of the lifting device in the borehole to supply concrete mixture, automate the opening and closing propchange to provide for the use of submersible shock drive, that improves the efficiency of transmission of shock and reduces the metal structure. 7 C.p. f-crystals, 12 ill.

The invention relates to the field of construction, namely, devices for the formation of piles in the ground.

A device for producing drilled piles of shells (see SU 1172998 A, 15.06.85), comprising a housing made of interconnected sections, inside top and bottom of them posted by vibrators. Sections are connected movably and executed from top to bottom with decreasing diameter, and the diameter of the lower section is equal to or larger than the diameter of upper section. The maximum diameter of the lower section equal to borehole diameter. The disadvantage of the design is the need to retrieve it from the well to fill the last of the concrete mixture. In forming a pile loop hole is filled with a discrete areas and after compaction of each section, you must remove the device to the surface.

The closest analogue is the device length of the molding ramming piles in soil containing a working body, placed ahead of cylindrical pipes and drums, the actuator is placed in the upper end of the pipe, hole in your body with the motion of the working body is attached to the front of the pipe, and Central to the shaft and is moveable (see SU 1270215 A1, 15.11.86).

The present invention is to simplify the fabrication of the device and improving the reliability.

The problem is solved due to the fact that the device for forming ramming piles in soil containing a working body, placed ahead of cylindrical pipes and drums, the actuator is placed in the upper end of the pipe, hole in your body, connecting the inner and outer surface of the working body, which is covered by the stem, the peripheral part of the working body is attached to the front of the pipe, and Central to the shaft and is moveable, according to the invention, the rod is made with a radial protrusions corresponding to the size of the holes of the pipe end, and the rod made movable around its longitudinal axis, with one of the structural members, for example, the tube has two stops, and the second element is rod - one of the emphasis placed between two lugs of the other element limiting the rotation of the rod relative to the tube.

The front part of the rod can be accomplished with biconic surfaces, a United at their base.

Biconic surface front is here can be performed at the level of the end surface of the pipe and overlap the last.

Device for forming ramming piles can also be made with a cross-shaped supports attached to the pipe, which restrict the movement upwards of the rod relative to the tube.

The stem can be performed with a radial stop.

Radial stop rod can be placed ahead of the cross-point pipe.

Radial stop rod can be placed behind the cross-point pipe and stock can be made with a radial seal in the front, between the radial stem seal and cross-point pipe can be placed spring.

To the tube behind the stem can be attached punch, punch, while the fastening element can be made through channels.

Technical result provided by the invention is the simplification of the manufacturing device for forming ramming piles in the soil, improving reliability, providing manageability bypass the concrete mix through the working body and compaction of the concrete mix, simplifying the process of lifting device in the borehole to supply concrete mixture, automate the opening and closing carrying holes in your body when Groznogo shock drive, that improves the efficiency of transmission of shock and reduces the metal structure.

The essence of the proposed device for forming ramming piles will illustrate on the example of a specific application.

In Fig.1 shows the operation of the sinking of wells in the ground; Fig.2 is an operation to bypass the concrete mix into the hole, placed under schweinebraten; Fig.3 is an operation to seal the concrete mix; Fig.4 - the device (schweinebraten) with channels in the head portion of the rod; Fig.5 - a device with a cylindrical protrusion on the rod; Fig.6 - the device is shipped with the rod; Fig.7 - cross section a-a of Fig.6; Fig.8 - design of cross ledge; Fig. 9 - view page B, Fig.8; Fig.10 - submersible device using as a punch of punch - pneumatic percussion mechanism; Fig.11 is a device with a rotary control mechanism of the opening (closing) the bypass holes; Fig.12 - view page In Fig.11.

Device for the formation of piles contains the working body 1 placed in front of the cylindrical tube 2, the rod 3 and percussion drive. The working body 1 may have a tapered surface (Fig. 1-6), wsimages the first (Fig.11). Shock actuator can be placed on the surface, i.e. in the upper part of the immersion pipe (Fig.1-6, 8-10, where he not shown), or it may submersible (Fig.11). In the latter case, it is advisable to use air puncher - pneumatic percussion device for sinking wells in compacted soil. The pipe 2 in the front part is made with 4 hole blocked by a rod 3. When the rod 3 can be installed in the hole 4 (Fig. 1-6, 8, 10), while it has the possibility of vertical (axial) movement relative to the tube 2. It is also possible overlap of the holes 4 of the rod 3 when it is turned. In this case, he has projections overlying the hole 4 by the rotation of the shaft 3 around its longitudinal axis (Fig. 11, 12). The front part of the rod 3 can be performed biconical 5, 6 (Fig. 1-4), or cylindrical with a circular protrusion 7 (Fig.5, 8). The pipe 2 has a cruciform pores 8 (Fig.6, 7, 8). The working body 1 (head) of the device has a conical surface in contact with the ground. This surface is formed either by the rod 3 (Fig.1) or may form two front surfaces of the shaft 3 and pipe 2 (Fig. 4-8), or the front surface of the pipe 2 (Fig. 5). If the diameter of the front part of the rod 3 is equal to the diameter of the hole 9, in skvazhina 9. Position 12 marked the concrete mix. In this case, biconic surface 5 of the front part of the rod 9 are connected on the grounds, and the channels 10, 11 facing the upper conical surface in an area of mutual contact of the pipe 2 with the rod 3, i.e. when the contact outputs of the channels 10, 11 overlap the pipe body 2. Tube 2 may be made and attached crosswise stops 8 (Fig. 6, 7, 8), limiting the vertical movement of the rod 3. This cross between stops 8 and the head part of the piston rod 3 can be installed spring 13, or radial lugs 14. As the submersible actuator can be used widely known air puncher 15 (Fig.8) attached to the pipe 2. The mount must have holes 16 (Fig. 9) for the passage of concrete mix 12. Structurally, this is solved through the use of ribs 17 which are welded to the pipe 2 and pneumotropica 15 (usually there is an intermediate sleeve, not shown). When using device management open holes 4 by the rotation of the shaft 3 the latter has a radial projections 19, overlying the openings 4 of the pipe 2. The pipe 2 has lugs 20, 21, limiting the rotation of the axial protrusion 22 of the rod 3. In Fig. 11 shows the emphasis 21SS="ptx2">

Device for forming ramming piles in the ground works as follows.

Due to the application of the shock pulse to the pipe 2 (Fig. 1-7) from the actuator placed on the surface (not shown) or immersion when using the punch 15 (Fig.10), there is a formation of the well 9 in the soil. In stable soils borehole walls 9 are not destroyed, so you can use a submersible device (Fig.10), or a tube 2 with the tab in the front part (Fig. 5, 11), ensuring the formation of a gap between the walls of the pipe 2 and the bore 9, which will reduce the resistance during implementation. After sinking wells 9 to a depth equal to the length of the desired pile, raise the unit to a height equal to the portion of the flow of the concrete mix, or to be more precise, effective depth compacting concrete mixes available device with a certain impact energy. Then release the bypass hole 4 (channel 10,11) due to the lowering of the rod 3 or raising the pipe 2 and serves the concrete mixture 12 in the wellhead. Concrete mix 12 through the opening 4 or channels 10, 11 of the working body 1 of the device enters the lower part of the bore 9. The next step is sealing (plugging) of the concrete mix 12. To do this, omit estrovertida 4 (channels 10, 11). After plugging the holes 4, the front part of the device has the conical or flat surface without holes, which are used as the working body 1 to seal the concrete mix 12. When the front seal surface (conical or flat) formed the core, the configuration of which depends on the angle of internal friction of the working of the sealing material. The conical surface of the working body facilitates the initial moment (implementation) of the device into the soil prior to the formation of a soil core, a flat surface is better to use when plugging (seal) concrete mix. The most appropriate use of shock seal and apply air puncher 15 (Fig. 10). After compaction of the concrete mix 12 again raise the device to the height of fill concrete mix another part of the bore 9 and the operation repeated. Thus discretely carry out the filling of the borehole 9 concrete mixture 12 and also discretely carry its seal. Discrete compaction of the concrete mix 12 allows the use of relatively low-power device and to achieve the desired effect.

When using the device with a cross-shaped protrusions 7 is simplified operation POIs of structural elements pipe 2 (Fig. 6) or rod 3 (Fig. 8). In the first case, the lifting pipe 2, the spring 13, abutting against the cross-shaped protrusion 7, pushes shortened the shaft 3 and thereby opens the bypass hole 4. In the second case, when the lifting rod 3 ring stop 14, resting on a cross-shaped protrusion 7 of the pipe 2, raises the latter and thereby opens the bypass hole 4. When the operation is performed by the compaction of the concrete mix 12 omit the device. In the first case, the front part of the pipe 2 abuts against the conical upper surface 6 of the front part of the rod 3 (Fig.6) and block the hole 4, and in the second case, the annular protrusion 7 of the shaft 3 abuts the head portion of the pipe section 2 and will move it down, blocking the bypass hole 4. The overlap of the holes 4 is done automatically.

When the control opening (closing) of the holes 4 in the working body 1 (Fig. 11, 12) by turning the stem 3, you must install the latest in one of the end positions, when the axial stop 22 of the radial protrusion 19 of the rod 3 is in contact with one of the lugs 20, 21 of the tube 2. In one of the holes 4 of the pipe 2 is closed and the other open. With open holes 4 is a bypass of the concrete mixture 12 from the cavity above the desktop organovo to compact the concrete mix 12. Front flat end surface is formed soil core whose shape does not depend on the form of the working surface of the device.

The actuator used for the formation of piles in the ground, may be placed on the surface (Fig.1-6) or to be submersible (Fig.10). In the first case uses copra or impact sites, in the second case - air puncher 15 (Fig. 10). This design decision allows to significantly reduce the size of the device, its intensity, and, more importantly, improve the efficiency of the process, because of the shock pulse will be less extinguished pipe 2 and to facilitate its soil (less pipe length 2). In this design the concrete mix 12 will pass through the openings 16 of the mounting of the punch 15 with the pipe 2 (Fig.9) made in the form of welded ribs 12 to both elements. When the bypass concrete mix 12 through the working body 1, you can use the vibration generated by the actuator, i.e., the operation of the bypass concrete mixture 12 can be done with a dead drive or operating at minimum power. In the first case, the concrete mixture will act only the force of gravity, the second is added vibration force, excluding SASK foundations in sealed and Neoplatonic soils. In the first case, the device can be first well, and then to produce printed pile. When this device is used as schweinebraten and seal concrete. In the second case, well Buryats or are in any other way, destroying the soil and removing it separated from the solid particles. To do this, use any known equipment. The proposed device is used only for forming printed pile compaction of the concrete mix into the pre-made hole.

Application of the proposed device for forming ramming piles in the soil allows on the one hand to carry out the compaction of the concrete mix consistently sections, allowing you to use less power shock site while providing greater strength of body piles, because less concrete mixture will be subjected to shock load of a certain power. On the other hand, portions of the flow of the concrete mix is provided through a device that does not require its removal to the surface after filling zone of the well of each portion of the concrete mix and, as a consequence improves the performance and reduces the complexity of the work.

pipe, and percussion drive located in the upper end of the pipe, hole in your body, connecting the inner and outer surface of the working body, which is covered by the stem, the peripheral part of the working body is attached to the front part of the tube, and the Central - to the shaft and is moveable, wherein the rod is made with a radial protrusions corresponding to the size of the holes of the pipe end, and the rod made movable around its longitudinal axis, with one of the structural members, such as pipe, has two stops, and the second element is rod - one stop placed between the two lugs of the other element limiting the rotation of the rod relative to the tube.

2. The device under item 1, characterized in that the front part of the rod is made with biconic surfaces interconnected at their base.

3. The device under item 1 or 2, characterized in that the biconic surface of the front part of the rod are connected by channels with the channel on the upper conical surface is made at the level of the end surface of the pipe and overlap the last.

4. The device under item 1, characterized in that it is made with cross supports pricipe p. 2, characterized in that the rod is made with a radial stop.

6. The device under item 5, wherein the radial stop rod is placed ahead of the cross-point pipe.

7. The device under item 5, wherein the radial stop rod placed behind the cross-point pipe and the rod is made with a radial seal in the front, between the radial stem seal and cross-point pipe is placed a spring.

8. Device according to any one of paragraphs.1 to 7, characterized in that the tube behind the stem attached punch, punch, while the fastening element is made through channels.

 

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