CN113202111A

CN113202111A - Foundation pit slope supporting structure

Info

Publication number: CN113202111A
Application number: CN202110493972.9A
Authority: CN
Inventors: 梁建军; 刘海生; 任永记; 罗真; 姜世伟; 徐志尧; 李衡; 卜立宁; 任亚光; 毛勇明
Original assignee: CCCC First Highway Engineering Co Ltd; Third Engineering Co Ltd of Highway Engineering Bureau of CCCC
Current assignee: CCCC First Highway Engineering Co Ltd; Third Engineering Co Ltd of Highway Engineering Bureau of CCCC
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-08-03
Anticipated expiration: 2041-05-07
Also published as: CN113202111B

Abstract

The utility model relates to a foundation pit slope supporting structure, which belongs to the technical field of slope supporting and comprises a retaining wall fixed at the bottom of a slope, turf is paved on the slope, a plurality of prefabricated first partition blocks and a plurality of prefabricated second partition blocks are arranged on the slope, the first partition blocks and the second partition blocks form a plurality of cells, the turf is positioned in the cells, and a connecting component for fixing the first partition blocks and the second partition blocks on the slope simultaneously is arranged on the slope; coupling assembling includes outer tube and interior pole, and outer tube one end is for sealing the form, and interior pole is inserted and is inlayed inside the outer tube, and interior pole outer wall exists the tangent point with the outer tube inner wall, and interior pole outer wall is provided with the lug with the non-tangent department of outer tube inner wall, and lug and interior pole outer wall fixed connection offer on the outer tube and supply interior pole rotation back lug to roll out the inside rectangular hole of outer tube, and this application has the effect of combining the vegetation to the ecological timbering of side slope and saving man-hour.

Description

Foundation pit slope supporting structure

Technical Field

The application relates to the technical field of slope support, in particular to a foundation pit slope support structure.

Background

The side slope support refers to a retaining, reinforcing and protecting measure which is taken for the side slope to ensure the safety of the side slope and the environment. The commonly used supporting structure types are: gravity retaining wall, buttress retaining wall, cantilever support, plate rib type or lattice type anchor rod retaining wall support, row pile type anchor rod retaining wall support, anchor spraying support and slope ratio method.

In the conventional highway side slope, the side slope is trimmed before side slope support, the side slope is brushed manually from top to bottom, and the excessively wide part is trimmed by brushing the side slope mechanically and then manually. Conventionally, a retaining wall is arranged below a side slope, concrete is poured on the side slope through a formwork, anchor rods are matched for fixation, a grid-shaped structure made of concrete is formed, and vegetation is planted in the grid, so that an ecological supporting structure is formed for the side slope.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the construction progress is slow when the latticed concrete pouring is performed on the side slope and the anchor rod fixing process is matched.

Disclosure of Invention

In order to reach the effect that combines vegetation to the ecological support of side slope and save man-hour, this application provides a foundation ditch side slope supporting construction.

The application provides a foundation ditch side slope supporting construction adopts following technical scheme:

a foundation pit slope supporting structure comprises a retaining wall fixed at the bottom of a slope, turf is paved on the slope, a plurality of prefabricated first partition blocks and a plurality of prefabricated second partition blocks are arranged on the slope, the first partition blocks and the second partition blocks form a plurality of cells, the turf is positioned in the cells, and a connecting component for fixing the first partition blocks and the second partition blocks on the slope simultaneously is arranged on the slope; coupling assembling includes outer tube and interior pole, and outer tube one end is for sealing the form, and interior pole inserts and inlays inside the outer tube, and interior pole outer wall has the point of tangency with the outer tube inner wall, and interior pole outer wall is provided with the lug with the not tangent department of outer tube inner wall, and lug and interior pole outer wall fixed connection offer on the outer tube and supply interior pole to rotate the inside rectangular hole of back lug commentaries on classics-out outer tube.

Through adopting above-mentioned technical scheme, soil nail wall supports side slope toe department, first break piece and second break piece intercrossing form the box that is used for depositing the turf, the turf is planted on the side slope and is placed in the box, insert earlier interior pole in the outer tube, the lug is located interior pole this moment, then interior pole is inserted and is inlayed in the side slope after running through first break piece or second break piece, rotate interior pole at last and change the lug out interior pole through the rectangular hole, accomplish first break piece, the fixing of second break piece and side slope, prefabricated first break piece and second break piece transport scene after, assemble fixedly through coupling assembling, reach and combine vegetation to side slope ecological support and save man-hour effect.

Optionally, the outer tube is articulated with the limiting plate, limiting plate one end is articulated with the lateral wall that rectangular hole is close to the inside more depths of side slope, and the rectangular hole just sets up to the pore wall slope of limiting plate articulated shaft, and the incline direction is by the outside slope of outer tube to the outer tube inside and to being close to the slope more depths, and the lateral wall and the rectangular hole inner wall butt that the limiting plate is close to the rectangular hole.

By adopting the technical scheme, the limiting plate is arranged, so that when the outer pipe is inserted and embedded on the side slope, soil cannot enter the outer pipe through the strip hole, the soil is blocked, and the subsequent rotation of the lug is facilitated; the lug rotates the ejecting rectangular hole of limiting plate back, and the setting up of limiting plate cooperation lug makes and forms the structure of barb form on the outer wall of outer tube, makes the outer tube more stable with the soil combination, increases the degree of difficulty that the side slope was extracted to the outer tube.

Optionally, a positioning plate is fixed to the end of the inner rod, the positioning plate is perpendicular to the inner rod, one end, far away from the convex block, of the positioning plate is fixedly connected with the inner rod, and when the positioning plate is abutted to the end face, far away from one end of the side slope, of the outer tube, the convex block and the strip hole are located on the same cross section of the outer tube.

Through adopting above-mentioned technical scheme, when inlaying at the outside pipe is inserted to the inner rod, insert through the hammering and inlay the entering with inner rod, when interior pole and outer tube length have the difference, the setting of locating plate can avoid interior pole excessively to insert and inlay at the outside pipe insidely, produces the location effect to the position of lug simultaneously, and interior pole and outer tube after spacing each other, the locating plate separates the piece to the first piece that separates that the outer tube runs through and play limiting displacement with the second and separates the piece, enable the better fixing on the slope of first piece that separates of separating and the second and separate the piece.

Optionally, the end of the inner rod, away from the bump, is provided with a thread, the inner wall of the outer tube, away from the end of the side slope, is provided with a thread matched with the thread on the inner rod, the inner rod is inserted and embedded inside the outer tube, and the inner rod is in threaded connection with the outer tube while the bump ejects the limiting plate out of the strip hole.

Through adopting above-mentioned technical scheme, outer tube and interior pole screw-thread fit make both combine more firm, make the lug accomplish the location with the spacing board ejecting back, even receive the pressure of soil, the limiting plate also can't reset.

Optionally, insert on the outer tube and inlayed the guard pin, the guard pin is L form, has seted up the constant head tank on the outer tube outer wall, and the constant head tank is located the outer tube and keeps away from the inside one end department of side slope, and the guard pin one end is inserted and is inlayed in the constant head tank, and the side slope direction setting is kept away from to the other end orientation, inserts when interior pole and inlays at the inside back of outer tube, and the tip butt of constant head tank is kept away from to locating plate and guard pin, and the screw thread on interior pole is just about to the inside screw thread of contact outer tube.

By adopting the technical scheme, one end of the protection pin is inserted and embedded in the positioning groove when the inner rod is inserted and embedded into the outer pipe, the other end of the protection pin is arranged along the length direction of the outer pipe and in the direction away from the side slope, and the positioning plate is abutted against the end part of the protection pin after the inner rod is inserted and embedded into the outer pipe, so that the threads on the inner rod and the outer pipe are protected, and the phenomenon of sliding and buckling caused by thread damage is avoided; wherein the protective pin can be taken down for multiple use.

Optionally, a grouting hole is formed in the positioning plate, and the inner portion of the outer tube is communicated with the outside through the grouting hole.

Through adopting above-mentioned technical scheme, after outer tube and interior pole location, through the remaining space slip casting of slip casting hole inside to the outer tube, the thick liquid has further strengthened the connectivity between outer tube and the soil through rectangular hole infiltration to soil.

Optionally, the first partition block is provided with a plurality of insertion grooves, the length direction of each insertion groove is perpendicular to the length direction of the first partition block, the insertion grooves penetrate through two opposite side walls of the first partition block, and adjacent insertion grooves are arranged at equal intervals along the length direction of the first partition block; the end of the second partition block is fixedly provided with a connecting part for connecting the adjacent second partition blocks in a limiting manner, the adjacent connecting parts are placed in the inserting caulking groove after being limited, and the bottom surface of the second partition block is abutted against the side slope at the moment.

Through adopting above-mentioned technical scheme, the seting up of inserting the caulking groove makes second cut off a piece tip can insert and inlay in inserting the caulking groove, and it is spacing with first wall piece formation, and the coupling assembling setpoint can cut off the crossing department of piece at first disconnected piece and second, has reduced coupling assembling's use quantity, has strengthened the connectivity between first disconnected piece and the second wall piece simultaneously.

Optionally, the connecting portion includes a first connecting strip and a second connecting strip, one end of the first connecting strip is fixedly connected with an end portion of the second partition block, the other end of the first connecting strip conforms to the length direction of the second partition block and is arranged in a cantilever manner in a direction away from the second partition block, one end of the second connecting strip is fixedly connected with the cantilever end portion of the first connecting strip, the second connecting strip is arranged perpendicular to the first connecting strip, the second connecting strip and the second partition block form a concave clamping groove, and the connecting portions at two ends of the same second partition block are symmetrically arranged along a center line of the partition block; the connecting parts which are close to each other on the adjacent second partition blocks are mutually clamped and embedded through the shape of the concave clamping grooves, and the outer pipe is wrapped by the adjacent second connecting strips and the outer pipe in a matched mode.

Through adopting above-mentioned technical scheme, the fixed position cooperation second of first connecting strip and second connecting strip cuts off the draw-in groove that the block formed the concavity, and the mode that sets up of connecting portion makes the second cut off the block and can batch production, when adjacent second cuts off the block and need spacing connection each other, cuts off a second and cuts off the block upset 180 and can make the connecting portion on the adjacent second cut off the block inlay card spacing each other, and easy operation is convenient.

Optionally, the circumferential side walls of the positioning plates are provided with end surfaces parallel to each other, and the end surfaces parallel to each other are perpendicular to the side walls of the positioning plates contacting the inner rod.

By adopting the technical scheme, after the positioning plate is provided with the end faces which are parallel to each other, the inner rod convenient to insert and embed into the designated position, a worker rotates the inner rod through the positioning plate, so that the worker has a plane convenient to apply force, or rotates the positioning plate through a wrench to drive the inner rod to rotate.

Optionally, the first and second partition blocks are both prefabricated by a mixture of straw and concrete.

By adopting the technical scheme, the strength of the prefabricated first partition block and the prefabricated second partition block is ensured by adding the concrete, the addition of the straw enables the first partition block and the second partition block to generate pores, and after vegetation is flourishing, a root system penetrates through the first partition block or the second partition block to enhance the connectivity of the first partition block or the second partition block and a side slope.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the connecting assembly is matched with the prefabricated first partition block and the prefabricated second partition block, so that construction is accelerated, and the effects of ecological support of the side slope by combining vegetation and working time saving are achieved;

2. the arrangement of the connecting parts enhances the connecting effect between the adjacent second partition blocks, and the assembling type matching connecting components are adopted for fixing, so that the effect of saving working hours is achieved;

3. the opening of the grouting holes further enhances the connection between the connecting component and the side slope.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an exploded view of the first and second spacer blocks as installed;

FIG. 3 is an exploded view of the connection assembly;

FIG. 4 is a cross-sectional view of the interior of the connection assembly;

FIG. 5 is a view of the connection assembly in use;

fig. 6 is a schematic view showing a state in which the protection pin is used.

In the figure, 1, a side slope; 11. a retaining wall; 2. a first block; 21. inserting the caulking groove; 3. a second block; 31. a connecting portion; 311. a first connecting bar; 312. a second connecting strip; 4. a connecting assembly; 41. an outer tube; 411. a strip hole; 412. a limiting plate; 42. an inner rod; 421. a bump; 5. positioning a plate; 51. grouting holes; 6. a protection pin; 61. positioning a groove; 7. an arc-shaped surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses foundation ditch side slope 1 supporting construction.

Referring to fig. 1, a foundation pit slope supporting structure comprises a retaining wall 11, first partition blocks 2, second partition blocks 3 and a connecting assembly 4, wherein the retaining wall 11 is fixed at the slope toe of a slope 1 and plays a role in supporting and reinforcing the slope toe of the slope 1, the first partition blocks 2 and the second partition blocks 3 are arranged in a staggered mode, a grid shape is formed on the slope 1, turf is placed in the grid, a fixed position is provided for the turf due to the grid, and the turf is not shown in the drawing; connecting assembly 4's setting is fixed first partition block 2 and second partition block 3 on side slope 1, and first partition block and second partition block 3 are prefabricated in advance and form, transport the scene and directly assemble and fix through connecting assembly 4, reach the effect that combines the vegetation to 1 ecological support of side slope and save man-hour.

Referring to fig. 1, a retaining wall 11 is vertically arranged, a first partition block 2 is arranged along an inclined plane of a side slope 1 and clings to the side slope 1, one end of the first partition block 2 extends to the top of the side slope 1, and the other end of the first partition block extends to the top of the retaining wall 11 and is fixedly connected with the retaining wall 11; the presence of the retaining wall 11 simultaneously supports the first block 2.

Referring to fig. 1 and 2, the second partition block 3 is horizontally arranged close to the slope 1, and the second partition block 3 and the first partition block 2 are staggered to form a grid shape. The first 2 last inserting caulking grooves 21 of having seted up of spacing apart, the perpendicular first 2 length direction of spacing apart of piece of caulking groove 21 length direction sets up, and inserting caulking groove 21 is opened thoroughly along the horizontal direction 2 both sides lateral walls of first spacing apart, and inserting caulking groove 21 has seted up a plurality ofly, and adjacent inserting caulking groove 21 is seted up along the equidistance of 2 length direction of first spacing apart piece. The insertion caulking groove 21 is convenient to arrange, so that the end part of the first partition block 2 is clamped and embedded in the insertion caulking groove 21, the connectivity between the first partition block 2 and the second partition block 3 is enhanced, the insertion caulking groove 21 which is not inserted and embedded with the first partition block 2 is temporary in rainy seasons, the rainwater can conveniently flow through the insertion caulking groove 21, and the accumulation of excessive rainwater in grids is avoided.

Referring to fig. 1 and 2, the connecting portions 31 are fixed to both end portions of the second barrier block 3, and the connecting portions 31 located on the same second barrier block 3 are symmetrically disposed on both end portions of the second barrier block 3 with a center line of the second barrier block 3 as a symmetry axis. The connecting portion 31 is provided for limiting the adjacent second partition blocks 3 in a mutually embedded manner.

The connecting portion 31 includes a first connecting bar 311 and a second connecting bar 312, the first connecting bar 311 and the second connecting bar 312 are both rectangular long bars, the first connecting bar 311 is arranged in conformity with the length direction of the second partition block 3, one end of the first connecting bar 311 is fixedly connected with the end face of one end of the second partition block 3, and the other end is arranged in an overhanging manner in the direction far away from the second partition block 3; the second connecting strip 312 and the first connecting strip 311 are located on the same horizontal plane, the second connecting strip 312 is perpendicular to the first connecting strip 311, one end of the second connecting strip 312 is fixedly connected with the overhanging end of the first connecting strip 311, and the end faces of the second connecting strip 312, the first connecting strip 311 and the second partition block 3 form a concave clamping groove.

When the adjacent second partition blocks 3 are mutually clamped and embedded in a limited manner through the connecting portion 31, the second connecting strips 312 on one side are inserted and embedded in the concave clamping grooves formed by the original connecting portion 31, and the concave clamping grooves are filled up with the concave clamping grooves, and meanwhile, the concave clamping grooves of the connecting portion 31 on one side are also filled up with the second connecting strips 312 in the original connecting portion 31.

Because connecting portion 31 symmetry sets up on the second separates 3 both ends terminal surfaces of piece, so when adjacent second separates piece 3 through connecting portion 31 interconnect inlay card, adjacent second separates 3 positive and negative crisscross uses of piece, alright realize that adjacent second separates the effect that piece 3 passes through the spacing inlay card of connecting portion 31.

Referring to fig. 2, since the depth of the insertion caulking groove 21 is smaller than the vertical thickness of the first partition block 2, after the adjacent connecting portions 31 are mutually inserted and inserted into the insertion caulking groove 21, the second partition block 3 cannot contact with the side slope 1, in order to make the second partition block 3 close to the side wall of the side slope 1 tightly adhere to the side slope 1, the overall thickness of the connecting portions 31 is reduced, and after the connecting portions 31 are inserted and embedded into the insertion caulking groove 21, the side wall of the second partition block 3 close to the side slope 1 tightly adheres to the side slope 1.

Referring to fig. 2, the second connecting strip 312 is provided with an arc-shaped surface 7, the arc-shaped concave surface of the arc-shaped surface 7 is opposite to the end surface of the second partition block 3, after the adjacent second partition blocks 3 are mutually limited through the connecting portion 31, the arc-shaped surfaces 7 on the adjacent second connecting strips 312 form a complete oval, and the connecting assembly 4 fixes the first partition block 2 and the second partition block 3 with the side slope 1 through the oval space.

Referring to fig. 3 and 4, the connection assembly 4 includes an outer tube 41 and an inner rod 42, wherein one end of the outer tube 41 is a closed taper, and the inner rod 42 is inserted into the outer tube 41. The outer tube 41 is provided with two strip holes 411, and the adjacent strip holes 411 are symmetrically arranged on the outer wall of the outer tube 41. The outer tube 41 is provided with a limiting plate 412, the limiting plate 412 is hinged on the hole wall of the elongated hole 411, and the elongated hole 411 is completely blocked by the limiting plate 412 to form a part of the outer wall of the outer tube 41. The inner rod 42 is fixed with two lugs 421, and the adjacent lugs 421 are symmetrically arranged on the circumferential outer wall of the inner rod 42 by taking the center line of the inner rod 42 as a symmetry axis. After the inner rod 42 is inserted into the outer tube 41, the outer wall of the inner rod 42 and the inner wall of the outer tube 41 have a tangent point and a gap, and the generated gap is used for storing the projection 421. The outer tube 41 cross-section is oval-shaped in this embodiment, and interior pole 42 cross-section is circular, and after interior pole 42 inlays inside to the assigned position in outer tube 41, rotate interior pole 42 and drive lug 421 and rotate, lug 421 can be with the ejecting rectangular hole 411 of limiting plate 412 to form the state of barb on outer tube 41, strengthen the connectivity of outer tube 41 and side slope 1.

Referring to fig. 3 and 5, the hinge joint of the position-limiting plate 412 and the hole wall of the elongated hole 411 is located on the hole wall of the elongated hole 411 close to the pointed conical end of the outer tube 41, the elongated hole 411 is inclined away from the hole wall of the pointed conical end of the outer tube 41, the inclined direction is inclined towards the pointed conical end of the outer tube 41 along the direction close to the center line of the outer tube 41, and the circumferential side wall of the position-limiting plate 412 close to the hole wall of the elongated hole 411 is tightly abutted to the hole wall of the elongated hole 411. With such an arrangement, in the process of inserting the outer tube 41 into the slope 1, soil cannot enter the outer tube 41 from the position of the limiting plate 412, and the bump 421 can eject the limiting plate 412 from the inside, i.e., a structure of the one-way plate is formed.

Referring to fig. 3 and 6, a thread is formed at a position of the inner rod 42 away from the pointed cone of the outer tube 41, a thread is also formed at a position of the inner wall of the end of the outer tube 41 away from the pointed cone, the thread formed at the position of the outer tube 41 is only a tangent position between the outer tube 41 and the inner rod 42, and meanwhile, the forming of the thread on the outer tube 41 does not affect the inserting and embedding of the inner rod 42. After the inner rod 42 is inserted into the outer tube 41, the inner rod can be connected with the outer tube by screw threads, and the limit plate 412 can be ejected out without affecting the projection 421. The end of the inner rod 42 away from the pointed cone of the outer tube 41 is fixed with a positioning plate 5, the positioning plate 5 is in a circular plate shape in the embodiment, and the opening end of the outer tube 41 can be completely sealed by the positioning plate 5 after the inner rod 42 and the outer tube 41 are fixed by screw threads. The positioning plate 5 is provided with end faces which are parallel to each other, the end faces are perpendicular to the side walls of the positioning plate 5 and the inner rod 42, and the parallel end faces are convenient for workers to rotate the positioning plate 5 so as to rotate the inner rod 42. The positioning plate 5 is provided with a grouting hole 51, and after the connecting assembly 4 is in place, grouting can be performed through the grouting hole 51, so that firmness of the connecting assembly 4 in place is further improved by grout. Be provided with protection pin 6 on the outer tube 41, seted up constant head tank 61 on the outer wall that self point awl department was kept away from to outer tube 41, protection pin 6 is the L form, and 6 one end inserts and inlays in constant head tank 61, the other end and 5 butts of locating plate. After the inner rod 42 is inserted into the outer tube 41, when the end of the protection pin 6 abuts against the positioning plate 5, the threads on the inner rod 42 are just in contact with the threads inside the outer tube 41, so that the integrity of the threads on the inner rod 42 and the outer tube 41 is protected in the process of inserting the inner rod into the outer tube 41, and the occurrence of the sliding buckle phenomenon is reduced.

The implementation principle of a foundation pit slope supporting structure of the embodiment of the application is as follows: transporting first partition block 2 and second partition block 3 to side slope 1, arranging first partition block 2, placing adjacent second partition blocks 3 in a front staggered manner and connecting with each other through connecting portion 31, placing in inserting caulking groove 21 after connection is finished, penetrating connecting assembly 4 through the intersection of first partition block 2 and second partition block 3 and finally penetrating into side slope 1 to complete fixation, planting turf in the grid formed by first partition block 2 and second partition block 3, and achieving the effects of combining vegetation to ecologically support side slope 1 and saving working hours.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a foundation ditch side slope supporting construction, is equipped with turf, its characterized in that including fixing retaining wall (11) in side slope (1) bottom slope (1) upper berth: the lawn mower is characterized in that the side slope (1) is provided with a plurality of prefabricated first partition blocks (2) and a plurality of prefabricated second partition blocks (3), the first partition blocks (2) and the second partition blocks (3) form a plurality of cells, a lawn is positioned in the cells, and the side slope (1) is provided with a connecting component (4) for fixing the first partition blocks (2) and the second partition blocks (3) on the side slope (1) at the same time;

coupling assembling (4) are including outer tube (41) and interior pole (42), outer tube (41) one end is for sealing the form, interior pole (42) are inserted and are inlayed inside outer tube (41), there is the point of tangency in interior pole (42) outer wall and outer tube (41) inner wall, interior pole (42) outer wall is not provided with lug (421) with tangent department of outer tube (41) inner wall, lug (421) and interior pole (42) outer wall fixed connection, offer on outer tube (41) and supply interior pole (42) to rotate back lug (421) and roll out rectangular hole (411) inside outer tube (41).

2. A foundation pit slope supporting construction according to claim 1, characterized in that: articulated on outer tube (41) have limiting plate (412), limiting plate (412) one end is articulated near the inside lateral wall of a deeper place of side slope (1) with rectangular hole (411), and rectangular hole (411) just set up to the pore wall slope of limiting plate (412) articulated shaft, and the incline direction is by outer tube (41) outside to outer tube (41) inside and to being close to the slope of a deeper place of side slope (1), and limiting plate (412) are close to the lateral wall and the butt of rectangular hole (411) inner wall of rectangular hole (411).

3. A foundation pit slope supporting construction according to claim 1, characterized in that: interior pole (42) tip is fixed with locating plate (5), and locating plate (5) perpendicular interior pole (42) sets up, and lug (421) one end fixed connection is kept away from with interior pole (42) locating plate (5), and when locating plate (5) and outer tube (41) kept away from the terminal surface butt of side slope (1) one end, lug (421) and rectangular hole (411) are located outer tube (41) same cross-section.

4. A foundation pit slope supporting construction according to claim 3, characterized in that: the end part of the inner rod (42) far away from the convex block (421) is provided with a thread, the inner wall of the outer pipe (41) far away from one end of the side slope (1) is provided with a thread matched with the thread on the inner rod (42), the inner rod (42) is inserted into the outer pipe (41) and is connected with the outer pipe (41) in a threaded mode, and meanwhile the convex block (421) is used for ejecting the strip hole (411) out of the limiting plate (412).

5. A foundation pit slope supporting construction according to claim 4, characterized in that: insert on outer tube (41) and inlay protection pin (6), protection pin (6) are the L form, constant head tank (61) have been seted up on outer tube (41) outer wall, constant head tank (61) are located outer tube (41) and keep away from side slope (1) inside one end department, inlay in constant head tank (61) is inserted to protection pin (6) one end, side slope (1) direction setting is kept away from to the other end orientation, insert when interior pole (42) and inlay in outer tube (41) inside back, the tip butt of constant head tank (61) is kept away from with protection pin (6) in locating plate (5), the screw thread on interior pole (42) is just about to the inside screw thread of contact outer tube (41).

6. A foundation pit slope supporting construction according to claim 3, characterized in that: and the positioning plate (5) is provided with grouting holes (51), and the inner part of the outer pipe (41) is communicated with the outside through the grouting holes (51).

7. A foundation pit slope supporting construction according to claim 3, characterized in that: the first partition block (2) is provided with a plurality of inserting grooves (21), the length direction of each inserting groove (21) is perpendicular to the length direction of the first partition block (2), the two opposite side walls of each inserting groove (21) are opposite to the two opposite side walls of the first partition block (2), and the adjacent inserting grooves (21) are arranged at equal intervals along the length direction of the first partition block (2); the end of the second partition block (3) is fixed with a connecting part (31) for connecting and limiting the adjacent second partition block (3), the adjacent connecting part (31) is placed in the inserting caulking groove (21) after being limited, and the bottom surface of the second partition block (3) is abutted to the side slope (1).

8. A foundation pit slope supporting construction according to claim 7, wherein: the connecting part (31) comprises a first connecting strip (311) and a second connecting strip (312), one end of the first connecting strip (311) is fixedly connected with the end part of the second isolating block (3), the other end of the first connecting strip conforms to the length direction of the second isolating block (3), and the first connecting strip (311) is arranged in a manner of overhanging towards the direction far away from the second isolating block (3), one end of the second connecting strip (312) is fixedly connected with the overhanging end part of the first connecting strip (311), the second connecting strip (312) is arranged perpendicular to the first connecting strip (311), the second connecting strip (312) and the second isolating block (3) form a concave clamping groove, and the connecting parts (31) at the two ends of the same second isolating block (3) are symmetrically arranged along the central line of the isolating block; the connecting parts (31) which are close to each other on the adjacent second partition blocks (3) are mutually clamped and embedded through the shapes of the concave clamping grooves, and the outer pipe (41) is wrapped by the adjacent second connecting strips (312) and the outer pipe (41) in a matching mode.

9. A foundation pit slope supporting construction according to claim 4, characterized in that: the positioning plate (5) is characterized in that end faces which are parallel to each other are arranged on the circumferential side wall of the positioning plate (5), and the end faces which are parallel to each other are perpendicular to the side wall of the positioning plate (5) which is in contact with the inner rod (42).

10. A foundation pit slope supporting construction according to claim 1, characterized in that: the first partition block (2) and the second partition block (3) are both prefabricated by adopting a straw and concrete mixture to form the first partition block (2) and the second partition block (3).