Efficient grouting type diaphragm wall construction method and device

Abstract

The invention relates to the technical field of diaphragm wall construction devices, in particular to an efficient grouting type diaphragm wall construction method and device.The efficient grouting type diaphragm wall construction device comprises grouting equipment, a continuous grouting pipe, a limiting piece, an extension pipe and a jetting piece, the grouting equipment comprises a rack, a grouting piece, a blanking piece and a pressurizing piece, and the grouting piece is vertically arranged on the top face of the rack; a feeding part is installed on the top face of the rack, a blanking part is vertically assembled at the top feeding end of the feeding part in a communicating mode, a pressurizing part is installed on the top face of the rack, the air outlet end of the pressurizing part is assembled on the feeding part in a communicating mode, a continuous injection pipe is assembled at the bottom discharging end of the feeding part in a communicating mode, and a plurality of limiting parts are vertically assembled at the end of the continuous injection pipe in a communicating mode. And extension pipes are vertically assembled among the multiple limiting pieces in a communicating mode, and injection pieces are assembled at the bottom ends of the multiple limiting pieces in a communicating mode. It is guaranteed that the filling pipeline diaphragm wall foundation pit keeps stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diaphragm wall construction devices, in particular to an efficient grouting type diaphragm wall construction method and device. BACKGROUND

[0002] The grouting type diaphragm wall is an engineering technology that forms a continuous underground anti-seepage barrier by injecting grout into the stratum to fill the pores and cracks in the soil or rock mass. It is widely used in water conservancy projects, dam foundation reinforcement, foundation pit support, subway tunnels, and mine engineering, etc. It is an important means to prevent groundwater seepage and improve the stability and impermeability of the foundation. The grouting type diaphragm wall is a technology used to enhance the stability of soil and prevent groundwater seepage. It forms a continuous barrier by drilling underground and injecting cement grout or other chemical grout, thereby achieving the purpose of waterproofing and reinforcement.

[0003] The existing underground diaphragm wall slot hole pouring construction device with the publication number CN214497520U and the name of a kind of underground diaphragm wall slot hole pouring construction device belongs to the technical field of water conservancy construction, which comprises a base, a support plate and a limiting plate are installed on the base, and the base comprises an upper frame and a lower frame connected to each other, and the middle part of the upper frame and the middle part of the lower frame form an installation channel passing through from top to bottom. The underground diaphragm wall slot hole pouring construction device disclosed in the utility model can stably support the grouting pipe at two positions through the support plate and the limiting plate during the concrete pouring process, prevent the grouting pipe from swinging greatly during the grouting process, maintain the required verticality of the grouting pipe, and ensure the stability of the inner wall of the diaphragm wall hole slot. It is convenient to operate and suitable for wide application and promotion.

[0004] However, during the grouting process of the above-mentioned underground diaphragm wall, a support plate and a limiting plate are arranged at the top of the pre-set base hole of the diaphragm wall, and the support plate and the limiting plate are used to limit the insertion of the grouting pipe into the base hole, so as to prevent the grouting pipe from swinging greatly during the grouting process. However, the above-mentioned diaphragm wall grouting only sets the limiting grouting pipe at the top of the base hole, but the length of the grouting pipe inserted into the base hole is relatively long, and the grouting pipe is limited at a single position, which causes the bottom end of the pipe to easily swing during grouting, reduces the stability of the grouting pipe, and affects the construction quality of the diaphragm wall. SUMMARY

[0005] The present application solves the problems in the related art and proposes an efficient grouting type diaphragm wall construction method and device, which overcomes the problem that the existing diaphragm wall grouting only sets the limiting grouting pipe at the top of the base hole, but the length of the grouting pipe inserted into the base hole is relatively long, and the grouting pipe is limited at a single position, which causes the bottom end of the pipe to easily swing during grouting, reduces the stability of the grouting pipe, and affects the construction quality of the diaphragm wall.

[0006] In order to solve the above technical problems, the present application is realized by the following technical scheme: a high-efficiency grouting type cutoff wall construction device, comprising a grouting device, a continuous injection pipe, a limiting piece, an extension pipe and a injection piece, the grouting device comprises a rack, a material injection piece, a material falling piece and a pressure piece, the material injection piece is vertically arranged on the top surface of the rack, the material falling piece is vertically and communicatively assembled at the top feeding end of the material injection piece, the pressure piece is installed on the top surface of the rack and is communicatively assembled on the material injection piece at the gas outlet end, the continuous injection pipe is communicatively assembled at the bottom discharging end of the material injection piece, the end of the continuous injection pipe is vertically and communicatively assembled with the limiting piece, a plurality of limiting pieces are vertically arranged in the foundation pit, the extension pipe is vertically and communicatively assembled between the plurality of limiting pieces, and the bottom end of the plurality of limiting pieces is communicatively assembled with the injection piece.

[0007] As a preferred scheme, the material injection piece comprises a machine base, a material injection motor and a material guide piece, the machine base is fixed on the rack, the material injection motor is fixed on the top surface of the machine base, the material guide piece is arranged on the bottom surface of the machine base, a mixing rod is arranged on the bottom surface of the machine base, the top end of the mixing rod is fixedly connected with the output end of the material injection motor, a material conveying screw rod is fixed on the bottom surface of the mixing rod, a roller is rotatably connected on the bottom surface of the rack, a control box is fixed on the outer side of the rack, and the output end of the control box is electrically connected with the input end of the material injection motor through wires.

[0008] As a preferred scheme, the material guide piece comprises a mixer shell, the top end of the mixer shell is fixed on the bottom surface of the machine base, the mixer shell is sleeved outside the mixing rod, a compression cylinder is communicatively fixed at the bottom end of the mixer shell, the compression cylinder is sleeved outside the material conveying screw rod, a discharging shell is communicatively fixed at the bottom end of the compression cylinder, an assembly spout is communicatively fixed horizontally on the discharging shell, a feeding port is vertically arranged on the mixer shell, and the power input end of the mixer shell is electrically connected with the output end of the control box through wires.

[0009] As a preferred scheme, the material falling piece comprises a material falling shell, the upper and lower end surfaces of the material falling shell are both open, the bottom end of the material falling shell is communicatively fixed at the end of the feeding port, a mesh is horizontally fixed on the inside upper side of the material falling shell, a plurality of material pushing plates are vertically arranged on the inside upper side of the material falling shell, a material pushing rod is horizontally fixed on the top surface of the plurality of material pushing plates, the material pushing rod is horizontally and slidingly arranged through the end surface of the material falling shell, a pressing wheel is rotatably connected on the outer end surface of the material pushing rod, a material pushing spring is sleeved outside the material pushing rod, the two ends of the material pushing spring are respectively fixed on the outer wall of the material falling shell and the end of the material pushing rod, a material stirring motor is horizontally fixed on the outer wall of the material falling shell, a material stirring wheel is fixed on the output end of the material stirring motor and is in abutment with the pressing wheel, and the power input end of the material stirring motor is electrically connected with the output end of the control box through wires.

[0010] As a preferred scheme, the pressure piece comprises a compressor, the compressor is fixed on the rack, a gas conveying pipeline is communicatively connected with the gas input end of the compressor, a gas connecting pipe is communicatively fixed on the outer wall of the mixer shell, a gas control rod is communicatively fixed on the gas conveying pipeline, and the output end of the gas control rod is communicatively fixed with the gas connecting pipe.

[0011] As a preferred scheme, the limiting piece comprises a supporting ring plate, a plurality of clamping frames are uniformly and vertically fixed on the top surface of the supporting ring plate, and a sliding strip is uniformly and horizontally fixed on the outer wall of the supporting ring plate, a supporting sliding frame is horizontally and slidingly inserted into the sliding strip, a damping rod is horizontally fixed at the end of the sliding strip, the other end of the damping rod is fixed on the inner end surface of the supporting sliding frame, a supporting spring is horizontally sleeved on the outer part of the damping rod, and the two ends of the supporting spring are respectively fixed on the end of the sliding strip and the inner end surface of the supporting sliding frame, a hole frame is vertically fixed on the outer end of the supporting sliding frame, a top pressing piece is vertically arranged in the hole frame, an anchor is vertically and penetratingly installed on the outer end bottom of the supporting sliding frame, a connecting cylinder is vertically and penetratingly fixed in the supporting ring plate, a rotating column is uniformly and vertically fixed on the top surface of the connecting cylinder, a screw hole strip is rotationally connected on the rotating column, a clamping screw rod is horizontally and screwingly assembled at the end of the screw hole strip and clamped in the clamping frame.

[0012] As a preferred scheme, the top pressing piece comprises a top plate and a top arc plate, the top arc plate is vertically fixed on the vertical end surface of the outer side of the top plate, two hole plates are symmetrically and vertically fixed on the bottom of the front end surface of the top plate, a positioning rod is horizontally and slidingly inserted through the two hole plates, the end of the positioning rod is inserted into the hole frame, a pressing spring is horizontally fixed between the positioning rods on the two hole plates, and the two ends of the pressing spring are respectively fixed on the adjacent ends of the positioning rods.

[0013] As a preferred scheme, the injection piece comprises an injection pipe, a spray shell is arranged at the bottom end of the injection pipe, a plurality of nozzles are uniformly and penetratingly fixed on the outer wall of the spray shell, a rotating shell is vertically and communicatively fixed at the top end of the spray shell, and the rotating shell is rotationally connected with the bottom end of the injection pipe.

[0014] As a preferred scheme, the two ends of the extension pipe are respectively and communicatively fixed with an assembly screw cylinder and an assembly screw pipe, the upper and lower ends of the connecting cylinder are respectively and vertically and communicatively fixed with an assembly screw cylinder and an assembly screw pipe, the two ends of the connecting injection pipe are respectively and communicatively fixed with a connecting injection screw shell and an assembly screw pipe, the connecting injection screw shell at the end of the connecting injection pipe is screwingly and communicatively assembled with the assembly screw opening, the assembly screw cylinders and the assembly screw pipes at the adjacent ends of the extension pipe and the connecting cylinder are communicatively assembled, the assembly screw cylinders at the top of the plurality of connecting cylinders are communicatively assembled with the connecting injection screw shells at the ends of the connecting injection pipes, the top end of the injection pipe is vertically and communicatively fixed with an assembly screw cylinder, and the assembly screw cylinder at the top of the injection pipe is communicatively assembled with the assembly screw pipes at the bottoms of the plurality of connecting cylinders.

[0015] A high-efficiency grouting type cutoff wall construction method adopts a high-efficiency grouting type cutoff wall construction device, and the specific steps are as follows,

[0016] S1. First, a foundation pit is excavated at a cutoff wall construction site, and then, when grouting, a proper number of limiting pieces and extension pipes are selected according to the depth of the foundation pit, the plurality of limiting pieces and the plurality of extension pipes are sequentially and spacedly arranged in the vertical direction, and the assembly screw cylinders and the assembly screw pipes at the adjacent ends of the connecting cylinders of the plurality of limiting pieces and the plurality of extension pipes are communicatively assembled.

[0017] S2, the plurality of limiting pieces and the plurality of extension pipes are assembled in communication with the injection member at the bottom, the assembly screw and the assembly screw tube at the top end of the injection pipe of the injection member top are assembled in communication, when injecting slurry, the slurry is sprayed outward from the nozzle on the outer wall of the injection shell, the nozzle is uniformly arranged on the outer wall of the injection shell in the circumferential direction, the injection force makes the rotating shell at the top of the injection shell rotate at the bottom end of the injection pipe, and the slurry is sprayed in the circumferential direction in the foundation pit;

[0018] S3, the plurality of limiting pieces, the plurality of extension pipes and the injection member are inserted into the foundation pit, the plurality of limiting pieces are assembled in communication with the injection pipe at the top, the assembly screw tube at the end of the injection pipe is assembled in communication with the assembly screw at the top of the plurality of limiting pieces, then the injection screw shell at the other end of the injection pipe is assembled in communication with the assembly screw of the injection material of the grouting equipment;

[0019] S4, when injecting slurry, the slurry needed for anti-seepage is added into the material falling part, the slurry is added into the material falling part through the material falling part, then the slurry enters the mixing machine shell, the injection motor on the machine base is started through the control box, the mixing rod is driven to rotate in the mixing machine shell, the slurry is stirred to be uniform, enters the compression cylinder, the slurry is moved in the compression cylinder by the spiral conveying of the material conveying screw rod, is discharged from the assembly screw tube and is guided into the injection pipe, and the foundation pit anti-seepage injection is started;

[0020] S5, in order to improve the pressure of slurry injection, the compressor is started to drive compressed air to move in the gas conveying pipeline, the compressed air is guided into the mixing machine shell from the air connection pipe, the air pressure pushes the slurry to be pressurized into the foundation pit, and the injection force of the slurry injection is ensured.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] Firstly, when injecting slurry, a proper number of limiting pieces and extension pipes are selected according to the depth of the foundation pit, the plurality of limiting pieces and the plurality of extension pipes are sequentially and spaced apart in the vertical direction, the assembly screw tube at the end of the injection pipe is assembled in communication with the assembly screw at the top of the plurality of limiting pieces, the plurality of limiting pieces and the plurality of extension pipes are assembled in communication with the injection member at the bottom, the assembly screw and the assembly screw tube at the top end of the injection pipe of the injection member top are assembled in communication, the plurality of limiting pieces, the plurality of extension pipes and the injection member are inserted into the foundation pit, the plurality of limiting pieces are assembled in communication with the injection pipe at the top, the assembly screw tube at the end of the injection pipe is assembled in communication with the assembly screw at the top of the plurality of limiting pieces, then the injection screw shell at the other end of the injection pipe is assembled in communication with the assembly screw of the injection material of the grouting equipment, and the extension pipe and the injection member are supported in the foundation pit through the limiting piece when injecting slurry, the injection pipe is supported and assembled together through the plurality of limiting pieces, is inserted into the foundation pit in the later period, a segmented support member is formed in the foundation pit by the plurality of limiting pieces, the stability of the extension pipe and the injection member is effectively ensured, the stability of the grouting pipe is ensured, and the construction quality of the anti-seepage wall is ensured.

[0023] Secondly, in order to support the seepage control wall in the foundation pit, the supporting ring plate in the limiting piece is inserted into the foundation pit, and the damping rod on the plurality of sliding strips on the outer wall of the supporting ring plate pushes the supporting sliding frame to slide on the sliding strip under the deformation force of the supporting spring, drives the top pressing piece to press against the inner wall of the foundation pit, and the vibration generated by the guide pipe during filling causes the supporting sliding frame to slide on the sliding strip and drive the supporting spring to deform to absorb the vibration, and then the potential energy of the supporting spring is offset by the damping force generated by the damping rod, thereby ensuring the stability of the seepage control wall in the foundation pit.

[0024] In summary, by supporting the extension pipe and the injection part in the foundation pit through the limiting piece during grouting, the grouting pipe is assembled together by a plurality of limiting pieces, and is inserted into the foundation pit in the later period, and a segmented support member in the vertical direction is formed inside the foundation pit by the plurality of limiting pieces, which effectively ensures the stability of the extension pipe and the injection part during grouting and injection, a plurality of limiting pieces limit the grouting guide pipe at multiple positions, and the damping rod and the supporting spring in the limiting piece support and offset the vibration of the pipe during grouting, so that the pipe is supported at multiple positions in the vertical direction during grouting, thereby ensuring the stability of the grouting guide pipe and improving the grouting uniformity and the construction quality of the seepage control wall. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the high-efficiency grouting type seepage control wall construction device;

[0026] Figure 2 is a schematic diagram of the exploded structure of the high-efficiency grouting type seepage control wall construction device;

[0027] Figure 3 is a schematic diagram of the structure of the grouting equipment in the high-efficiency grouting type seepage control wall construction device embodiment in the disassembled state;

[0028] Figure 4 is a schematic diagram of the structure of the material falling piece in the high-efficiency grouting type seepage control wall construction device embodiment in the disassembled state;

[0029] Figure 5 is a schematic diagram of the structure of the machine frame in the high-efficiency grouting type seepage control wall construction device embodiment in the disassembled state;

[0030] Figure 6 is a schematic diagram of the structure of the material injection piece in the high-efficiency grouting type seepage control wall construction device embodiment in the disassembled state;

[0031] Figure 7 is a schematic diagram of the structure of the material guide piece in the high-efficiency grouting type seepage control wall construction device embodiment in the disassembled state;

[0032] Figure 8is a position diagram of the continuous injection pipe, the limiting piece and the injection piece in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state;

[0033] Figure 9 is a structure diagram of the limiting piece in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state;

[0034] Figure 10 is a structure diagram of the support ring plate in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state;

[0035] Figure 11 is a structure diagram of the support sliding frame in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state;

[0036] Figure 12 is a structure diagram of the top pressing piece in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state;

[0037] Figure 13 is a structure diagram of the injection piece in the high-efficiency grouting type cutoff wall construction device embodiment in a decomposed state.

[0038] In the figure: 1, grouting equipment; 11, rack; 111, roller; 112, control box; 12, injection piece; 121, machine base; 122, injection motor; 123, material guiding piece; 1231, mixing machine shell; 1232, air connecting pipe; 1233, compression cylinder; 1234, discharging shell; 1235, assembling screw port; 1236, feeding port; 124, mixing rod; 125, material conveying screw; 13, discharging piece; 131, discharging shell; 132, mesh; 133, pushing plate; 134, pushing spring; 135, pushing rod; 136, compression wheel; 137, discharging motor; 138, discharging wheel; 14, pressure piece; 141, compressor; 142, gas conveying pipe; 143, control gas rod; 2, continuous injection pipe; 21, continuous injection screw shell; 3, limiting piece; 31, support ring plate; 32, clamping frame; 33, connecting cylinder; 331, rotating column; 332, screw hole strip; 333, clamping screw; 34, sliding bar; 35, support sliding frame; 351, damping rod; 352, support spring; 353, hole frame; 354, anchor bolt; 36, top pressing piece; 361, top plate; 362, top arc plate; 363, hole plate; 364, positioning rod; 365, pressing spring; 4, extension pipe; 41, assembling screw cylinder; 42, assembling screw pipe; 5, injection piece; 51, injection pipe; 52, injection shell; 53, nozzle; 54, rotating shell. DETAILED DESCRIPTION

[0039] Clearly, the embodiments described are only some embodiments of the application and not all embodiments of the application. The descriptions of the at least one example embodiment are intended to be illustrative, and not to be limiting. Many variations to the example embodiments described herein will be readily appreciated by persons of ordinary skill in the art following a reading of the description of the embodiments within the application. The decisions rendered from the use of the example embodiments within the application will depend on the particular application and the exercise of discretion supported by the disclosures presented herein. Any and all variations that rely upon the support of the application and that do not depart from the spirit and scope of the application are to be considered equivalents of the examples described herein. Persons skilled in the art will recognize that the example embodiments within the application can be practiced with benefit using one or more of a variety of materials, devices, and equipment other than that described. Such variations are not to be regarded as a departure from the spirit and scope of the application, and all such modifications as would be recognized by persons skilled in the art are intended to be included within the reach of the following claims.

[0040] It is also important to note that the term "comprising" or "including" or "containing" when used in this specification, is taken to mean the non-exclusive inclusion such that the materials, steps, features, components, devices, means or elements so described are among those that can be included, but not necessarily one or more of them only. The term "consisting essentially of" means including, in addition to those materials, steps, features, components, devices, means or elements as described, those that do not materially affect the basic and novel characteristic(s) of the application.

[0041] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is also to be understood that the drawings are not necessarily to scale as the illustrations are for clarity. Techniques, methods, and apparatus known to those of ordinary skill in the art can not be discussed in detail but can be assumed known to those of ordinary skill in the art. Any and all variations known to those of ordinary skill in the art can be used in the practice of the application. In all examples shown and discussed herein, any specific value is to be interpreted as illustrative only and not as a limitation. Other examples of the example embodiments can therefore have different values. It is noted that like references and designations can represent like elements throughout the drawings and that discussion of one drawing or figure does not require further discussion of the same elements in subsequent drawings or figures.

[0042] In the description of the application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the application. The orientation terms "inner", "outer" refer to the inner and outer of the contour of the components themselves.

[0043] For purposes of the description hereinafter, spatial

[0044] In addition, it should be noted that the use of the terms "first", "second", etc. to describe a component having a defined property are used herein only to facilitate identification of that particular component in the description and claims, and are not intended to convey any special meaning or significance to that component. Thus, the use of the term "first" to describe a component does not imply that the component is the first component to be described in the specification, nor does it imply that the component is the first component to be described in the claims.

[0045] As Figures 1 to 5The utility model discloses a high -efficient grouting type cutoff wall construction device, its characterized in being including grouting equipment 1, continuous injection pipe 2, spacing piece 3, extension pipe 4 and injection piece 5, grouting equipment 1 includes frame 11, injection material piece 12, blanking piece 13 and pressurizing piece 14, the top surface of frame 11 is vertically provided with injection material piece 12, and the top feeding end of injection material piece 12 is vertically communicated with blanking piece 13, and pressurizing piece 14 is installed on the top surface of frame 11, and the gas outlet end of pressurizing piece 14 is communicated with injection material piece 12, and the bottom discharge end of injection material piece 12 is communicated with continuous injection pipe 2, and the end of continuous injection pipe 2 is vertically communicated with spacing piece 3, multiple spacing pieces 3 are vertically arranged in the foundation pit, and multiple spacing pieces 3 are vertically communicated with extension pipe 4, the bottom end of multiple spacing pieces 3 is communicated with injection piece 5, in use, first excavate the foundation pit at the cutoff wall construction site, then when grouting, select the proper number of spacing piece 3 and extension pipe 4 according to the depth of foundation pit, multiple spacing pieces 3 and multiple extension pipes 4 are sequentially and spaced apart in the vertical direction, the assembly screw cylinder 41 and the assembly screw pipe 42 of the adjacent end of the cylinder 33 of multiple spacing pieces 3 and multiple extension pipes 4 are communicated and assembled, the injection piece 5 is communicated and assembled at the bottom of multiple spacing pieces 3 and multiple extension pipes 4 after assembly, the assembly screw cylinder 41 and the assembly screw pipe 42 of the top end of the injection pipe 51 of the top of injection piece 5 are communicated and assembled, multiple spacing pieces 3, multiple extension pipes 4 and injection piece 5 are inserted into the foundation pit after assembly, multiple spacing pieces 3 are communicated and assembled at the top, the assembly screw pipe 42 of the end of continuous injection pipe 2 and the assembly screw cylinder 41 of the top of multiple spacing pieces 3 are communicated and assembled, then the continuous injection screw shell 21 of the other end of continuous injection pipe 2 is communicated and assembled with the assembly screw pipe 1235 of the injection material piece 12 of grouting equipment 1, when grouting, extension pipe 4 and injection piece 5 are supported in the foundation pit through spacing piece 3, effectively guarantee the stability of extension pipe 4 and injection piece 5 injection, guarantee the stability of grouting guide pipe, guarantee the cutoff wall construction quality.

[0046] In one embodiment, as Figure 5 、 Figure 6 and Figure 7As shown, the injection part 12 includes a base 121, an injection motor 122 and a guide part 123, the base 121 is fixed on the rack 11, and the top surface of the base 121 is fixed with the injection motor 122, the bottom surface of the base 121 is provided with the guide part 123, and the bottom surface of the base 121 is provided with a mixing rod 124, the top end of the mixing rod 124 is fixedly connected with the output end of the injection motor 122, and the bottom surface of the mixing rod 124 is fixed with a conveying screw 125, the bottom surface of the rack 11 is rotatably connected with a roller 111, and the outer side of the rack 11 is fixed with a control box 112, and the output end of the control box 112 is electrically connected with the input end of the injection motor 122 through wires. In use, the injection motor 122 on the base 121 is started by the control box 112, driving the mixing rod 124 to rotate in the mixing machine shell 1231, stirring the slurry to be mixed uniformly, entering the compression cylinder 1233, using the conveying screw 125 to screw convey and push the slurry to move in the compression cylinder 1233, compressing and conveying the slurry to improve the pressure of slurry conveying, discharging from the assembled screw pipe 1235 into the continuous injection pipe 2, and starting to carry out the foundation pit anti-seepage injection.

[0047] In one embodiment, as shown in Figure 5 , Figure 6 and Figure 7 , the guide part 123 includes a mixing machine shell 1231, the top end of the mixing machine shell 1231 is fixed on the bottom surface of the base 121, and the mixing machine shell 1231 is sleeved outside the mixing rod 124, the bottom end of the mixing machine shell 1231 is fixedly communicated with the compression cylinder 1233, and the compression cylinder 1233 is sleeved outside the conveying screw 125, and the bottom end of the compression cylinder 1233 is fixedly communicated with the discharge shell 1234, the discharge shell 1234 is fixedly communicated with the assembled screw pipe 1235, the mixing machine shell 1231 is vertically provided with the feeding port 1236, and the power end of the mixing machine shell 1231 is electrically connected with the output end of the control box 112 through wires. In use, the injection motor 122 on the base 121 is started by the control box 112, driving the mixing rod 124 to rotate in the mixing machine shell 1231, stirring the slurry to be mixed uniformly, entering the compression cylinder 1233, using the conveying screw 125 to screw convey and push the slurry to move in the compression cylinder 1233, compressing and conveying the slurry to improve the pressure of slurry conveying, discharging from the assembled screw pipe 1235 into the continuous injection pipe 2.

[0048] In one embodiment, as shown in Figure 3 and Figure 4As shown, the blanking piece 13 includes a blanking shell 131, the upper and lower end faces of the blanking shell 131 are provided with openings, and the bottom end of the blanking shell 131 is fixedly connected in communication with the inlet end of the feeding port 1236. A mesh 132 is horizontally fixed on the inner upper side of the blanking shell 131, and a plurality of pushing plates 133 are vertically arranged on the inner upper side of the blanking shell 131. A pushing rod 135 is horizontally fixed on the top surface of the plurality of pushing plates 133, and the pushing rod 135 is horizontally slidably arranged through the end surface of the blanking shell 131. A pressing wheel 136 is rotatably connected to the outer end surface of the pushing rod 135, and a pushing spring 134 is arranged outside the pushing rod 135. The two ends of the pushing spring 134 are fixed to the outer wall of the blanking shell 131 and the end of the pushing rod 135, respectively. A stirring motor 137 is horizontally fixed on the outer wall of the blanking shell 131, and a stirring wheel 138 is fixed to the output end of the stirring motor 137 and abuts against the pressing wheel 136. The power input end of the stirring motor 137 is electrically connected to the output end of the control box 112 through wires. In use, when grouting, the grout to be prevented from seeping is added to the blanking shell 131 of the blanking piece 13. In order to ensure that the grout can quickly fall on the mesh 132 of the blanking shell 131 uniformly, the stirring motor 137 is started to drive the stirring wheel 138 to rotate by the control box 112. A plurality of stirring blades on the outer circumferential surface of the stirring wheel 138 abut against the pressing wheel 136 in turn and at intervals, push the pushing rod 135 to slide outward in the blanking shell 131, and then drive the pushing spring 134 to deform. When the plurality of stirring blades on the outer circumferential surface of the stirring wheel 138 move away from the pressing wheel 136, the deforming force of the pushing spring 134 makes the pushing rod 135 slide inward in the blanking shell 131. The reciprocating pushing rod 135 drives the pushing plate 133 to stir the grout on the mesh 132 to fall through the mesh 132, thereby effectively ensuring the falling rate of the grout.

[0049] In one embodiment, as shown in Figure 3 , 5 , the pressing member 14 includes a compressor 141 fixed to the rack 11, and a gas conveying pipeline 142 in communication with the gas conveying end of the compressor 141. A gas connecting pipe 1232 is fixedly connected in communication with the outer wall of the mixing machine shell 1231. A control gas rod 143 is fixedly connected in communication with the output end of the gas conveying pipeline 142 and the gas connecting pipe 1232. In use, in order to improve the pressure of the grouting, the compressor 141 is started to drive the compressed air to move in the gas conveying pipeline 142. The compressed air is guided into the mixing machine shell 1231 through the gas connecting pipe 1232. The compressed air enters the mixing machine shell 1231, and the air pressure pushes the grout into the foundation pit under pressure, thereby ensuring the jetting force of the grouting.

[0050] In one embodiment, as shown in Figure 9 , Figure 10 , Figure 11As shown, the limiting piece 3 comprises a supporting ring plate 31, a plurality of clamping frames 32 are uniformly and vertically fixed on the top surface of the supporting ring plate 31, a plurality of sliding strips 34 are uniformly and horizontally fixed on the outer wall of the supporting ring plate 31, a supporting sliding frame 35 is horizontally and slidingly inserted on the sliding strip 34, a damping rod 351 is horizontally fixed on the end of the sliding strip 34, the other end of the damping rod 351 is fixed on the inner end surface of the supporting sliding frame 35, a supporting spring 352 is horizontally sleeved on the outer part of the damping rod 351, and the two ends of the supporting spring 352 are respectively fixed on the end of the sliding strip 34 and the inner end surface of the supporting sliding frame 35, a hole frame 353 is vertically fixed on the outer end of the supporting sliding frame 35, a top pressing piece 36 is vertically arranged in the hole frame 353, an anchor 354 is vertically and penetratingly installed on the outer end bottom of the supporting sliding frame 35, a connecting cylinder 33 is vertically and penetratingly fixed in the supporting ring plate 31, a rotating column 331 is uniformly and vertically fixed on the top surface of the connecting cylinder 33, a screw hole strip 332 is rotationally connected on the rotating column 331, a clamping screw rod 333 is threadedly and penetratingly assembled on the end of the screw hole strip 332, and the clamping screw rod 333 is clamped in the clamping frame 32. In use, in order to support the seepage control wall foundation pit of the filling pipeline to keep stable, the supporting ring plate 31 is inserted into the foundation pit, the damping rod 351 on the sliding strip 34 on the outer wall of the supporting ring plate 31 is pushed to slide on the sliding strip 34 under the deformation force of the supporting spring 352, the supporting sliding frame 35 is driven to slide on the sliding strip 34, the top pressing piece 36 is pressed against the inner wall of the foundation pit, the vibration caused by the guide pipe during filling is used to drive the supporting sliding frame 35 to slide on the sliding strip 34 to drive the supporting spring 352 to deform to absorb the vibration, then the deformation potential energy of the supporting spring 352 is offset by the damping force generated by the damping rod 351, and the seepage control wall foundation pit of the filling pipeline is kept stable.

[0051] In one embodiment, as shown in Figure 11 and Figure 12 As shown, the top pressing piece 36 comprises a top plate 361 and a top arc plate 362, the top arc plate 362 is vertically fixed on the outer vertical end surface of the top plate 361, two hole plates 363 are symmetrically and vertically fixed on the front end surface bottom of the top plate 361, a positioning rod 364 is horizontally and slidingly inserted through the two hole plates 363, the end of the positioning rod 364 is inserted into the hole frame 353, a pressing spring 365 is horizontally fixed between the positioning rods 364 on the two hole plates 363, and the two ends of the pressing spring 365 are respectively fixed on the adjacent ends of the positioning rods 364. In use, when the top pressing piece 36 is assembled with the hole frame 353, the positioning rod 364 is pulled to slide in the hole plate 363 to extrude and deform the pressing spring 365, the top plate 361 is inserted into the hole frame 353, the positioning rod 364 is inserted into the hole frame 353 under the deformation force of the pressing spring 365, the limiting ensures that the top pressing piece 36 is fixedly assembled with the hole frame 353, the top arc plate 362 is pressed against the inner wall of the foundation pit, and the top arc plate 362 is ensured to vertically slide on the inner wall of the foundation pit.

[0052] In one embodiment, as shown in Figure 8 and13 As shown, the injection member 5 includes an injection pipe 51, the bottom end of the injection pipe 51 is provided with a spray shell 52, and a plurality of nozzles 53 are uniformly fixed on the outer wall of the spray shell 52, the top end of the spray shell 52 is vertically communicated and fixed with a rotating shell 54, and the rotating shell 54 is rotatably connected with the bottom end of the injection pipe 51, the assembled screw cylinder 41 and the assembled screw pipe 42 at the top end of the injection pipe 51 at the top of the injection member 5 are communicated and assembled, when injecting slurry, the slurry is sprayed outward from the nozzles 53 on the outer wall of the spray shell 52, the nozzles 53 are uniformly arranged in the circumferential direction on the outer wall of the spray shell 52, the spraying force makes the rotating shell 54 at the top of the spray shell 52 rotate at the bottom end of the injection pipe 51, and the slurry is uniformly sprayed in the circumferential direction in the foundation pit.

[0053] In one embodiment, as shown in Figure 8 As shown, the two ends of the extension pipe 4 are respectively communicated and fixed with the assembled screw cylinder 41 and the assembled screw pipe 42, the upper and lower ends of the connecting cylinder 33 are vertically communicated and fixed with the assembled screw cylinder 41 and the assembled screw pipe 42, the two ends of the connecting injection pipe 2 are respectively communicated and fixed with the connecting injection screw shell 21 and the assembled screw pipe 42, and the connecting injection screw shell 21 at the end of the connecting injection pipe 2 is threadedly communicated and assembled with the assembled screw port 1235, the assembled screw cylinder 41 and the assembled screw pipe 42 at the adjacent ends of the extension pipe 4 and the connecting cylinder 33 are communicated and assembled, and the assembled screw cylinder 41 at the top of the plurality of connecting cylinders 33 is communicated and assembled with the connecting injection screw shell 21 at the end of the connecting injection pipe 2, the top end of the injection pipe 51 is vertically communicated and fixed with the assembled screw cylinder 41, and the assembled screw cylinder 41 at the top of the injection pipe 51 is communicated and assembled with the assembled screw pipe 42 at the bottom of the plurality of connecting cylinders 33, when injecting slurry, a proper number of limiting members 3 and extension pipes 4 are selected according to the depth of the foundation pit, the plurality of limiting members 3 and the plurality of extension pipes 4 are sequentially and spacedly arranged in the vertical direction, the connecting cylinder 33 of the plurality of limiting members 3 and the assembled screw cylinder 41 and the assembled screw pipe 42 at the adjacent ends of the plurality of extension pipes 4 are communicated and assembled, the assembled connecting injection member 5 at the bottom of the plurality of limiting members 3 and the plurality of extension pipes 4 is assembled and communicated, the assembled screw cylinder 41 and the assembled screw pipe 42 at the top end of the injection pipe 51 at the top of the injection member 5 are communicated and assembled, when injecting slurry, the slurry is sprayed outward from the nozzles 53 on the outer wall of the spray shell 52, the nozzles 53 are uniformly arranged in the circumferential direction on the outer wall of the spray shell 52, the spraying force makes the rotating shell 54 at the top of the spray shell 52 rotate at the bottom end of the injection pipe 51, and the slurry is uniformly sprayed in the circumferential direction in the foundation pit.

[0054] A high-efficiency grouting type cutoff wall construction method, which adopts a high-efficiency grouting type cutoff wall construction device, and the specific steps are as follows,

[0055] S1, first, excavate a foundation pit at the cutoff wall construction site, then when injecting slurry, a proper number of limiting members 3 and extension pipes 4 are selected according to the depth of the foundation pit, the plurality of limiting members 3 and the plurality of extension pipes 4 are sequentially and spacedly arranged in the vertical direction, and the connecting cylinder 33 of the plurality of limiting members 3 and the assembled screw cylinder 41 and the assembled screw pipe 42 at the adjacent ends of the plurality of extension pipes 4 are communicated and assembled;

[0056] S2, the plurality of limiting members 3 and the plurality of extension tubes 4 bottom assembly communication injection member 5, the injection pipe 51 top end of the injection member 5 top assembly screw cylinder 41 and assembly screw pipe 42 communication assembly, injection grout, grout from the nozzle 53 on the outer wall of the shell 52 outwardly, nozzle 53 is evenly arranged on the outer wall of the shell 52 in the circumferential direction, the injection force makes the rotating shell 54 at the bottom end of the injection pipe 51 top, circumferential uniform grout circumferential spraying in the foundation pit;

[0057] S3, the plurality of limiting members 3, the plurality of extension tubes 4 and the injection member 5 are inserted into the foundation pit, the plurality of limiting members 3 top assembly communication injection pipe 2, the injection pipe 2 end assembly screw pipe 42 and the plurality of limiting members 3 top assembly screw cylinder 41 communication assembly, then the injection pipe 2 another end of the injection screw shell 21 in the injection material 12 of the injection equipment 1 of the assembly screw pipe 1235 communication assembly;

[0058] S4, when grouting, the grout needed for anti-seepage is added to the material falling part 13, the grout is added through the material falling part 13 to the material inlet 1236 of the material injection part 12 of the mixing machine shell 1231, then the grout enters the mixing machine shell 1231, the material injection motor 122 on the machine base 121 is started through the control box 112, the mixing rod 124 is driven to rotate in the mixing machine shell 1231, the grout is mixed uniformly, enters the compression cylinder 1233, the grout is moved in the compression cylinder 1233 by the screw conveyor 125, and is discharged from the assembly screw pipe 1235 to guide into the injection pipe 2, and the foundation pit anti-seepage injection is started;

[0059] S5, in order to improve the pressure of grout injection, the compressor 141 is started to drive the compressed air to move in the gas pipeline 142, the compressed air is guided into the mixing machine shell 1231 from the air connection pipe 1232, the compressed air enters the mixing machine shell 1231, the air pressure pushes the grout to enter the foundation pit, and the injection force of the grout is ensured.

[0060] The above is the preferred embodiment of the present application, and those skilled in the art can also make changes and modifications to the above embodiment, therefore, the present application is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the present application belongs to the protection scope of the present application.

Claims

1. A high-efficiency grouting-type seepage-proof wall construction device, characterized in that, The utility model provides a grouting equipment, including injection pipe (2), limiting piece (3), extension pipe (4) and injection piece (5), the grouting equipment (1) includes frame (11), injection piece (12), blanking piece (13) and pressurizing piece (14), the top of frame (11) vertical setting has injection piece (12), and the top feeding end of injection piece (12) vertical intercommunication assembly has blanking piece (13), the top of frame (11) is installed pressurizing piece (14), and the gas outlet end intercommunication assembly of pressurizing piece (14) is installed on injection piece (12), and the bottom discharge end of injection piece (12) intercommunication assembly has injection pipe (2), and the end of injection pipe (2) vertical intercommunication assembly has limiting piece (3), limiting piece (3) is vertically arranged in a plurality of in foundation pit, and the vertical intercommunication assembly of multiple limiting piece (3) has extension pipe (4), and the bottom end intercommunication assembly of multiple limiting piece (3) has injection piece (5).

2. The high-efficiency slip casting diaphragm wall construction device according to claim 1, characterized in that: The injection piece (12) includes a machine base (121), an injection motor (122) and a material guide (123), the machine base (121) is fixed on the frame (11), and the injection motor (122) is fixed on the top surface of the machine base (121), the material guide (123) is arranged on the bottom surface of the machine base (121), and a mixing rod (124) is arranged on the bottom surface of the machine base (121), the top end of the mixing rod (124) is fixedly connected with the output end of the injection motor (122), and a material conveying screw (125) is fixed on the bottom surface of the mixing rod (124), the bottom surface of the frame (11) is rotatably connected with a roller (111), and the outer side of the frame (11) is fixedly connected with a control box (112), and the output end of the control box (112) is electrically connected with the input end of the injection motor (122) through wires.

3. The high-efficiency slip casting diaphragm wall construction device according to claim 2, characterized in that: The material guide (123) includes a mixer shell (1231), the top end of the mixer shell (1231) is fixed on the bottom surface of the machine base (121), and the mixer shell (1231) is sleeved outside the mixing rod (124), the bottom end of the mixer shell (1231) is fixedly connected with a compression cylinder (1233), the compression cylinder (1233) is sleeved outside the material conveying screw (125), and the bottom end of the compression cylinder (1233) is fixedly connected with a discharge shell (1234), an assembly screw port (1235) is fixedly connected with the discharge shell (1234) horizontally, a feeding port (1236) is vertically arranged on the mixer shell (1231), and the power receiving end of the mixer shell (1231) is electrically connected with the output end of the control box (112) through wires.

4. The high-efficiency slip casting diaphragm wall construction device according to claim 3, characterized in that: The blanking piece (13) comprises a blanking shell (131), the upper and lower end faces of the blanking shell (131) are provided with openings, and the bottom end of the blanking shell (131) is fixedly connected with the feeding port (1236) in communication. The upper side of the inside of the blanking shell (131) is fixedly provided with a mesh (132) horizontally, and a plurality of pushing plates (133) are vertically arranged on the upper side of the inside of the blanking shell (131). The top surface of the plurality of pushing plates (133) is fixedly provided with a pushing rod (135) horizontally, and the pushing rod (135) is slidably arranged through the end face of the blanking shell (131) horizontally. The outer end surface of the pushing rod (135) is rotatably connected with a pressing wheel (136) horizontally, and the outer part of the pushing rod (135) is sleeved with a pushing spring (134). The two ends of the pushing spring (134) are fixedly connected with the outer wall of the blanking shell (131) and the end of the pushing rod (135) respectively. The outer wall of the blanking shell (131) is fixedly provided with a stirring motor (137) horizontally, and the output end of the stirring motor (137) is fixedly provided with a stirring wheel (138). The stirring wheel (138) is pressed against the pressing wheel (136), and the power supply end of the stirring motor (137) is electrically connected with the output end of the control box (112) through wires.

5. The high-efficiency slip casting diaphragm wall construction device according to claim 3, characterized in that: The pressing piece (14) comprises a compressor (141), which is fixed on the rack (11), and the gas inlet end of the compressor (141) is communicated with a gas pipeline (142). The outer wall of the mixer shell (1231) is fixedly provided with a gas connection pipe (1232) in communication. The gas pipeline (142) is fixedly provided with a control gas rod (143) in communication, and the output end of the control gas rod (143) is fixedly connected with the gas connection pipe (1232) in communication.

6. The high-efficiency slip casting diaphragm wall construction device according to claim 3, characterized in that: The limiting piece (3) comprises a supporting ring plate (31), a plurality of clamping frames (32) are vertically fixed on the top surface of the supporting ring plate (31) uniformly, and a sliding bar (34) is fixed on the outer wall of the supporting ring plate (31) uniformly. The sliding bar (34) is slidably inserted with a supporting sliding frame (35) horizontally, and the end of the sliding bar (34) is fixedly provided with a damping rod (351) horizontally. The other end of the damping rod (351) is fixedly provided on the inner end surface of the supporting sliding frame (35), and the outer part of the damping rod (351) is sleeved with a supporting spring (352) horizontally. The two ends of the supporting spring (352) are fixedly connected with the end of the sliding bar (34) and the inner end surface of the supporting sliding frame (35) respectively. The outer end of the supporting sliding frame (35) is vertically fixed with a hole frame (353), and a top pressing piece (36) is vertically arranged in the hole frame (353). The outer end bottom of the supporting sliding frame (35) is vertically penetrated and mounted with an anchor nail (354). The supporting ring plate (31) is vertically penetrated and fixedly provided with a connecting cylinder (33), and a rotating column (331) is vertically fixed on the top surface of the connecting cylinder (33) uniformly. The rotating column (331) is rotatably connected with a screw hole strip (332), and the end of the screw hole strip (332) is threadedly assembled with a clamping screw rod (333) horizontally. The clamping screw rod (333) is clamped in the clamping frame (32).

7. The high-efficiency slip casting diaphragm wall construction device according to claim 6, characterized in that: The top pressing piece (36) comprises a top plate (361) and a top arc plate (362), the top arc plate (362) is vertically fixed on the outer vertical end surface of the top plate (361), two hole plates (363) are symmetrically vertically fixed on the bottom of the front end surface of the top plate (361), a positioning rod (364) is horizontally slidably inserted through the two hole plates (363), the positioning rod (364) is inserted into the hole frame (353), a pressing spring (365) is horizontally fixed between the positioning rods (364) on the two hole plates (363), and the two ends of the pressing spring (365) are respectively fixed on the adjacent ends of the positioning rod (364).

8. The high-efficiency slip casting diaphragm wall construction device according to claim 6, characterized in that: The injection device (5) comprises an injection pipe (51), the bottom end of the injection pipe (51) is provided with a spray shell (52), a plurality of nozzles (53) are uniformly fixed on the outer wall of the spray shell (52), the top end of the spray shell (52) is vertically and communicatively fixed with a rotating shell (54), and the rotating shell (54) is rotatably connected with the bottom end of the injection pipe (51).

9. The high-efficiency slip casting diaphragm wall construction device according to claim 8, characterized in that: The two ends of the extension pipe (4) are respectively communicatively fixed with an assembly screw cylinder (41) and an assembly screw pipe (42), the upper and lower ends of the connecting cylinder (33) are vertically and communicatively fixed with the assembly screw cylinder (41) and the assembly screw pipe (42), the two ends of the connecting injection pipe (2) are respectively communicatively fixed with a connecting injection screw shell (21) and the assembly screw pipe (42), the connecting injection screw shell (21) at the end of the connecting injection pipe (2) is screwedly and communicatively assembled with the assembly screw opening (1235), the assembly screw cylinders (41) and the assembly screw pipes (42) at the adjacent ends of the extension pipe (4) and the connecting cylinder (33) are communicatively assembled, the assembly screw cylinders (41) at the top of the plurality of connecting cylinders (33) are communicatively assembled with the connecting injection screw shell (21) at the end of the connecting injection pipe (2), the top end of the injection pipe (51) is vertically and communicatively fixed with an assembly screw cylinder (41), and the assembly screw cylinder (41) at the top of the injection pipe (51) is communicatively assembled with the assembly screw pipes (42) at the bottom of the plurality of connecting cylinders (33).

10. A method for constructing a high-performance diaphragm wall by grouting, characterized by, The high-efficiency injection grouting type cutoff wall construction device comprises a plurality of limiting pieces and a plurality of extension pipes, the limiting piece comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an assembly screw cylinder (41) and an assembly screw pipe (42), the connecting cylinder (33) comprises a connecting cylinder (33) and a connecting injection pipe (2), the extension pipe (4) comprises an ​ ​ S3, in the assembled multiple limiting piece, multiple extension tube and injection piece insert into the foundation pit, multiple limiting piece top assembly communication injection pipe, injection pipe end of the assembly screw pipe and multiple limiting piece top assembly screw cylinder communication assembly, then injection pipe another end of the injection screw shell in the injection material piece of the injection equipment assembly screw pipe communication assembly; S4, when grouting, the grout needed to prevent seepage is added into the material falling part, the grout is added into the material falling part through the material falling part, then the grout enters the mixing machine shell, the injection motor on the machine stand is started through the control box, the mixing rod is driven to rotate in the mixing machine shell, the grout is stirred to be uniform, enters the compression cylinder, the grout is moved in the compression cylinder by the screw conveyor, is discharged from the assembly screw pipe and is guided into the injection pipe, the foundation pit is started to prevent seepage and add; S5, in order to improve the pressure of grout injection, the compressor is started to drive compressed air to move in the gas pipeline, the compressed air is guided into the mixing machine shell from the air connection pipe, the compressed air enters the mixing machine shell, the air pressure pushes the grout to enter the foundation pit, and the injection force of the grout is ensured.

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