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.
FIELD: building, particularly for constructing foundations of various building structures.
SUBSTANCE: bearing pile comprises head, rod and tip fixed to embedded rod part by embedded member. The tip is formed of thermoplastic concrete and has electric heater located inside the tip. Electric heater heats the tip after driving thereof into ground as far as it will go to obtain softening temperature of 80-150°C. Then the pile is fully driven in ground. Electric heater wires are placed in tube in longitudinal rod direction and brought outside under pile head for connection thereof with electric power source.
EFFECT: increased load-bearing pile capacity due to provision of widened pile tip support area.
2 cl, 5 dwg
FIELD: bulkheads, piles, or other structural elements specially adapted to foundation engineering, particularly concrete or concrete-like piles cast in position with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: reinforcement device is used to erect pile foundation with the use of foundation pile having at least one longitudinal cavity. Reinforcing device comprises a number of joined reinforcement members hingedly connected with central annular member located so that reinforcement device may be collapsed during installation and erected during device usage. Reinforcement device is connected to pile by at least one member working in tension. Foundation pile reinforced with the use of said device and method for foundation pile driving and pile bottom reinforcement are also disclosed.
EFFECT: increased uniformity of reinforcement distribution over pile bottom, improved compression and stretching force damping, decreased labor inputs and material consumption.
36 cl, 25 dwg
FIELD: construction, particularly bored piles with enlarged footing or enlargements at the bottom of the pile.
SUBSTANCE: method involves drilling well; filling the well with concrete mix and non-detonating composition including fuel and oxidizer; igniting non-detonating composition by applying low-voltage pulse to electric igniter and combusting non-detonating composition in deflagration regime to create camouflet void with following concrete mix hardening. The fuel is solid hydrocarbon selected from polyethylene, polypropylene and polystyrene. The oxidizer is sodium or potassium chlorate. Non-detonating composition is supplied in well before well filling with concrete mix.
EFFECT: decreased pile production time due to accelerated concrete mix hardening and improved produced pile quality.
SUBSTANCE: invention refers to building, in particular, to strengthening of the bases under the basements. The way of strengthening of the basement erected on waterlogged priming coats and near to the located constructions includes supply of early strength concrete in the metal tubing established in driven wells, drilled through a basic part of the basement and a ground. Pipes are made with the welded boots, in pipes lower explosive charges and fill with early strength concrete, then the explosive charges are detonated, remaining hollownesses of driven wells and pipes are filled with early strength concrete.
EFFECT: provision of reliable strengthening of the basements erected in waterlogged priming coats and near to located constructions; increase of load-carrying capacity.
SUBSTANCE: invention is related to methods for arrangement of pile foundations for structures, to pile foundations and shell structure for creation of widened foot for pile foundations. Method for creation of pile foundation for structures, according to which the following stages are executed on site to arrange the mentioned foundation - well for installation of foundation pipe is drilled with the help of the first auger drill. The following section is drilled under lower end of installed foundation pipe. Cavity is arranged in the specified section by means of scraper and pressure of water jet. Loose soil is removed from specified cavity by mentioned first drill. Pipe for set of tools and accessories with the second auger drill and flexible shell that envelopes the lower part of the second specified drill is lowered through foundation pipe into lower part of specified section. Excess pressure is built up in specified shell, and moulding material is injected into specified cavity, surplus of which is then removed by the second auger drill. After mentioned material hardens, the specified shell is blown off and removed via specified foundation pipe. Reinforcing device is lowered into foundation pipe. Concrete material is poured into foundation pipe, at that specified cavity is filled, and specified reinforcing device is embedded into concrete, thus creating widened foot for foundation pipe. Versions of method and pile foundation are also stated.
EFFECT: higher stability and resistance to compressing and stretching forces, lower material intensity.
5 cl, 26 dwg
FIELD: construction industry.
SUBSTANCE: invention refers to construction industry and namely to construction of bearing piles in ground rock. Device for making multi-layer sealed pile in ground rock includes, in the combination, elongated hollow tube having longitudinal axis, upper inlet end for material, open lower discharge end for material and diametre of the first external surface and common formed lower head element at open discharge end, which has diametre of the second external surface, which is more than diametre of the first external surface and made with the possibility of transmitting combination from axial and transverse stress components when hollow tube is lowered. Head element consists of common attachment to hollow tube; at that, head element includes lower driving end which in general has configuration of flattened cone between head element of external surface and lower discharge hole made in the lower driving end, and back end having in general the configuration of flattened cone, and cap of the head element covering lower discharge hole. Lower head element with the cap and hollow tube are formed for being introduced into ground rock and for displacing the earth when hollow tube with lower head element and the above cap is lowered into ground rock so that a cavity is formed in ground rock. The cap is at least partially removed from lower discharge hole when hollow tube is then lifted from the formed cavity in order to perform passage of material through lower discharge hole to the cavity section released with hollow tube and lower head element. The latter has the form of cross section and the sizes which are more than the shape of cross section and sizes of hollow tube in order to decrease friction forces on hollow tube when penetrating into ground rock and being removed from it.
EFFECT: improving reliability of the pile and capacity and production effectiveness of piles.
34 cl, 26 dwg
SUBSTANCE: invention related to construction, particularly can be used for bored piles with enlarged base arrangement. The method includes hole boring, hole opening with mechanical clampshell enlarger, reinforced cage installation and filling in the hole with concrete mixture. Developing enlargement with ration of enlargement diametre to hole diametre, equal de/dh≥2 with rotation velocity equal n=20-100 revolution per minute, dependant on ground conditions. After covering distance 0.8 h, where h - height of enlargement, stop axial supply of boring media and at that level, during 3-5 revolutions execute enlargement base cleaning, and ground collector and voids between enlarger blades complete filling. Turn on axial supply and execute boring till enlargement total height and enlargement blades closure. Take away enlarger, then concrete enlarged base, install reinforced cage and complete bored piles arrangement with concreting its core.
EFFECT: method of bored pile arrangement efficiency increase and hole enlarger design improvement, hole enlarger reliability increase, easing of ground withdrawal out form ground collector and better quality of constructed bore pile.
4 cl, 3 dwg
SUBSTANCE: invention is related to construction, in particular to pile foundations. Driven pile consists of shaft with axial hole, sharpened tip with circular base and conusoidal shell with spike, cavities inside shell filled with hardening solution. There is a threaded hole in tip base, which is closed with threaded plug with stem. Tip shell is rumpled with submergence force after removal of threaded plug and additional submersion of pile. For additional increase of bearing capacity there is an elastic shell on lower part of shaft with facilities for fixation of its upper and lower ends; cavity between elastic shell and shaft surface; protective jacket with facilities of its fixation of shaft, which slides in radial direction and embraces elastic shell. There is a radial hole in shaft, which connects longitudinal hole with specified cavity transformed into support belt after the pile has been submerged at the specified depth, the cavity has been filled with hardening solution via holes in shaft and the solution has hardened.
EFFECT: improved bearing capacity of hollow piles.
4 cl, 7 dwg
SUBSTANCE: method of drilled pile manufacturing includes well arrangement in soil. Supply of material into it. Compaction of soil under lower end of formed pile. In process of soil compaction, in the base of formed drilled pile with parametres equivalent to driven pile, its conventional camouflet cavity is arranged with diametre Dkp equal to diametre of dzs equivalent to driven pile, where: dzs - diametre (m) of equivalent driven pile. DkP - diametre (m) of conventional camouflet cavity produced in soil as it is displaced under lower end of formed drilled pile, by means of supply of controlled material volume to fill conventional camouflet cavity according to the following dependence : where V is controlled volume (m3) of material spent for filling of conventional camouflet cavity produced in soil due to its displacement into pile foundation. As well is filled with material in the form of hardening mix, preferably plastic concrete mix, diametre of equivalent driven pile is identified according to dependence , where dzs - diametre (m) of equivalent driven pile. Dskw - diametre (m) of well; Δh - measured value of subsidence (m) of plastic concrete mix in well as conventional camouflet cavity produced due to displacement of soil under lower end of formed pile is being filled. And in order to produce drilled pile with parametres of driven one of the same diametre, soil is treated in the lower end of pile till material subsides, preferably concrete mix, in well by value, which is compared with the one defined from the following ratio: Δh/Dskw=0.4. Besides in the lower end of well soil is exposed to forces, and their sufficiency is controlled (assessed) by flow of material additionally supplied to well in process of soil treatment, and its volume is identified according to formula , where Dskw - diametre (m) of formed pile. Besides in well reinforced with casing pipe, dynamic actions at soil are carried out until material subsidence value in casing pipe makes at least the following: , where Δhtr is subsidence (m) of material in casing pipe. Dskw - diametre (m) of well. Dfr - inner diametre (m) of casing pipe. Dynamic actions at soil in lower end of formed pile are carried out to achieve conventional failure, which is represented by material subsidence of not more than 2 mm in process of the last action, and when soils are compacted by electric explosions in pile foundation with application of electrode system, dynamic treatment is interrupted provided that electrode system freely installed on bottomhole in process of electric explosion sinks by not more than 1-2 cm, and in process of soil dynamic treatment at least one additional camouflet expansion is created along pile length, preferably, in zones of well opening of soils that are most pliant to compaction, which is detected by reaction of soil to test dynamic actions performed along pile length.
EFFECT: development of drilled piles with bearing capacity by soil, same as for driven piles, with minimum possible usage of resources and maximum possible usage of properties inherent in massif of soil that contains pile.
SUBSTANCE: device for compaction of soil in drilled pile well bottomhole includes casing pipe, bushing fixed on it with working element pulled through it. Working element is arranged in the form of hollow pipe, at the lower end of which there is a thrust journal and sealing attachment, and at the upper end there are upper and lower supports and inertial mass, placed on hollow pipe between upper and lower supports with sliding fit.
EFFECT: improved bearing capacity of drilled piles erected in watered and soft soils.