CN112376575A

CN112376575A - Slope supporting structure for excavation of pier foundation pit of steep slope section

Info

Publication number: CN112376575A
Application number: CN202011234058.4A
Authority: CN
Inventors: 方薇; 石立君
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2020-11-07
Filing date: 2020-11-07
Publication date: 2021-02-19

Abstract

The invention discloses a slope supporting structure for foundation pit excavation of pier in a steep slope section, belonging to the technical field of slope supporting structures; a slope supporting structure for excavation of pier foundation pits in steep slope sections comprises a mounting plate, wherein the mounting plate is fixedly arranged on the ground at the top end of a slope, a water collecting and irrigating mechanism is connected onto the mounting plate, a water guide groove is formed between the water collecting and irrigating mechanism and the side walls at the two ends of the mounting plate, a connecting mechanism is arranged on the side wall of the front end of the mounting plate, a first connecting plate is further connected onto the connecting mechanism, a second connecting plate is arranged below the first connecting plate, a slope fixing net is fixedly connected between the first connecting plate and the second connecting plate, mounting holes are formed in the mounting plate and the second connecting plate, and a fixing mechanism is connected onto the mounting holes; the invention effectively solves the problems that the existing design structure is relatively fixed, the rigidity of the supporting structure is easily influenced by vibration generated in construction and construction, the fixing mode is relatively simple, and the stability of the slope supporting structure cannot be ensured.

Description

Slope supporting structure for excavation of pier foundation pit of steep slope section

Technical Field

The invention relates to the technical field of slope supporting structures, in particular to a slope supporting structure for excavation of pier foundation pits in a steep slope section.

Background

In the large-span bridge spanning rivers and canyons, a bridge pile foundation is inevitably arranged on a high and steep slope. For some sections with steep terrain, complex geological structure and frequent geological disasters, once the sections are improperly treated, the safety of the bridge structure is endangered. Under most conditions, the excavation side slope of the side close to the mountain of a pier foundation pit of the steep slope section is higher, and is influenced by the topographic and geological conditions of the steep slope section, external loading, rainfall or earthquake and the like, so that the side slope is unstable and easy to slide; when the pier foundation ditch excavation, can further reduce side slope stability, the stability of side slope all has great influence to construction safety and pier main part safety. If the design scheme of the slope protection engineering is unreasonable and the measures are not in place during excavation of the deep and large foundation pit, the safety of constructors and bridge structures is easily endangered, and in order to solve the problems, the slope supporting structure for excavation of the pier foundation pit in the steep slope section is very necessary to be designed.

The slope supporting structure existing in the market at present is relatively fixed in structure, and when a bridge is built, the rigidity of the slope supporting structure is influenced by vibration caused by construction, so that the risk of landslide exists; in addition, the supporting construction of current design often inserts the fixed work who realizes supporting construction in the domatic soil through the dead lever, and this type of fixed mode is comparatively simple, can't guarantee domatic supporting construction's stability.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to provide a slope supporting structure for excavation of a foundation pit of a pier in a steep slope section, which aims to solve the problems in the prior art that:

the existing design structure is relatively fixed, the construction produces vibrations and easily influences the rigidity of the supporting structure and the fixed mode is relatively simple, and the problem of stability of the slope supporting structure cannot be guaranteed.

2. Technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a slope supporting structure for excavation of pier foundation pits in steep slope sections comprises a mounting plate, wherein the mounting plate is fixedly arranged on the ground at the top end of a slope, a water collecting and irrigating mechanism is connected onto the mounting plate, a water guide groove is formed between the water collecting and irrigating mechanism and the side walls at the two ends of the mounting plate, a filter cover is arranged at the tail end of the water guide groove and fixedly connected with the mounting plate, and a drain pipe is fixedly connected onto the side walls of the mounting plate; the side wall mounting of front end of mounting panel has coupling mechanism, the last first connecting plate that still is connected with of coupling mechanism, the below of first connecting plate is provided with the second connecting plate, the firm slope net of fixedly connected with between first connecting plate and the second connecting plate, be provided with the installation trompil on mounting panel and the second connecting plate, be connected with fixed establishment on the installation trompil.

Preferably, the watering mechanism that catchments is including the header tank, the header tank design is trapezoidal, header tank fixed connection is on the mounting panel, the water inlet has been seted up on the top surface of header tank, the inside of header tank is provided with the chamber that catchments, the fixed mounting who catchments the intracavity portion has the water pump, fixedly connected with shunt tubes on the water pump, fixedly connected with discharge pipe on the shunt tubes, the discharge pipe runs through the header tank and buries underground in the soil of solid slope net below, be provided with the apopore on the discharge pipe.

Preferably, the connecting mechanism comprises a connecting shaft, a first connecting hinge and a second connecting hinge, the first connecting hinge and the second connecting hinge are connected to the connecting shaft in a rotating mode, and the outer side wall of the first connecting hinge and the outer side wall of the second connecting hinge are fixedly connected with shock pads.

Preferably, coupling mechanism is still including first connecting bolt and second connecting bolt, be connected with the fixed plate on first connecting hinge and the second connecting hinge, all be provided with the connecting hole on first connecting hinge, the second connecting hinge, shock pad and the fixed plate, first connecting bolt runs through in the threaded hole of fixed plate, first connecting hinge and shock pad spiral fixed connection on the front end lateral wall of mounting panel, second connecting bolt runs through in the threaded hole of fixed plate, second connecting hinge and shock pad spiral fixed connection at first connecting plate.

Preferably, a first anti-seismic spring is further arranged between the first connecting hinge and the fixing plate, and between the second connecting hinge and the fixing plate, and the first anti-seismic spring is sleeved on the first connecting bolt and the second connecting bolt; and a second anti-vibration spring is arranged between the two fixing plates, and two ends of the second anti-vibration spring are fixedly connected with the first connecting hinge and the second connecting hinge respectively.

Preferably, the fixing mechanism comprises a fixing pipe, a first external thread is fixedly connected to the outer wall of the upper end of the fixing pipe, the fixing pipe is connected to the installation hole through the first external thread in a threaded mode, and the bottom end of the fixing pipe is provided with a limiting opening.

Preferably, the inside of fixed pipe is provided with the regulation pole, the upper end fixedly connected with auxiliary connecting rod of adjusting the pole, it connects inside the fixed pipe to adjust the pole through auxiliary connecting rod rotation, fixedly connected with second external screw thread on the lower extreme outer wall of regulation pole, it passes through second external screw thread screw connection on the spacing ring to adjust the pole, spacing ring fixed connection is on the inner wall of fixed pipe, the bottom of adjusting the pole is rotated and is connected on the mounting disc, it is connected with the movable claw to rotate on the mounting disc, movable claw and spacing opening phase-match.

3. Advantageous effects

(1) According to the invention, the mounting plate is arranged at the top end of the device body, the water collecting and irrigating mechanism is mounted on the mounting plate, the water guide grooves are formed between the trapezoidal water collecting tank of the water collecting and irrigating mechanism and two sides of the mounting plate, when rainfall occurs, one part of rainwater above the slope surface can be collected by the water collecting tank, and the other part of rainwater is discharged to the bottom of the slope surface along the water guide grooves through the water discharging pipes, so that the situation that the water flow formed above the slope surface erodes the slope surface in the rainfall weather is avoided, and the probability of landslide is greatly reduced; lay solid slope net on domatic, gu the mesh has been seted up on the slope net, can plant the vegetation in the soil under the mesh, and through the ponding watering mechanism at top, can when weather is hot, utilize the inside water pump of header tank to water for domatic vegetation, through planting green plant, can play better solid slope effect on the one hand, on the other hand is also better beautifies the environment.

(2) In the invention, the connecting mechanism is arranged between the mounting plate and the first connecting plate, the connecting mechanism comprises a first connecting hinge and a second connecting hinge, when in use, the connecting holes of the first connecting hinge and the second connecting hinge are respectively opposite to the side wall at the front end of the mounting plate and the threaded holes on the first connecting plate, then the first connecting bolt and the second connecting bolt pass through the fixing plate and the first anti-seismic spring and are finally spirally connected with the threaded holes, through the arrangement of the first anti-seismic spring, when the slope is vibrated in construction, the first anti-seismic spring can effectively absorb certain vibration, and the stability and firmness of the connecting mechanism are better ensured, besides, the invention also connects the damping pad and the second anti-seismic spring on the first connecting hinge and the second connecting hinge, and the anti-seismic capacity of the device body can be better improved by utilizing the rubber anti-seismic pad and the second anti-seismic spring, the problem of current project organization comparatively fixed, construction produces vibrations and easily produces the influence to supporting construction's rigidity has effectively been solved.

(3) The mounting plate at the top and the second connecting plate at the bottom are both arranged on a plane, compared with the existing mode of mounting on a slope surface, the mounting mode of the invention is more stable and safer, meanwhile, the mounting plate and the second connecting plate are both arranged on the ground through the fixing mechanism, when the invention is used, a deep hole is drilled at the mounting holes of the mounting plate and the second connecting plate through drilling equipment, then the bottom of the fixing mechanism is placed into the deep hole on the ground, the upper end of the fixing pipe of the fixing mechanism is spirally and fixedly connected with the mounting holes through first external threads, after the fixing pipe is screwed, the adjusting rod which is rotatably connected in the fixing pipe is rotated, the bottom of the adjusting rod is fixedly connected with second external threads, the second external threads are spirally connected with the limiting ring through the fixed connection in the fixing pipe, therefore, when the adjusting rod is rotated, due to the interaction between the second external threads and the limiting, can make and adjust the pole downstream, it is connected with the mounting disc to adjust the rotation of pole bottom, and rotate the movable claw of connection on the safety disc and peg graft in the spacing opening of fixed bobbin end, when adjusting the pole downstream, because spacing opening is to the limiting displacement of movable claw, can make the movable claw take place the upset, insert in the soil of deep hole lateral wall, when the movable claw rotates to the state shown in figure 6, stop the rotation regulation pole, this state can ensure that movable claw and fixed establishment are stable firm subaerial, also further assurance mounting panel and second connecting plate firmly and stable, utilize above-mentioned design, it is comparatively simple effectively to have solved current design fixed mode, can't guarantee the problem of domatic supporting structural stability.

Drawings

Fig. 1 is a schematic structural view of a slope supporting structure excavated by a pier foundation pit in a steep slope section, which is provided by the invention;

FIG. 2 is a schematic diagram of an explosion structure of a slope supporting structure excavated by a pier foundation pit in a steep slope section, which is provided by the invention;

FIG. 3 is a schematic structural view of a water collecting and irrigating mechanism of a slope supporting structure excavated by a foundation pit of a pier of a steep slope section, according to the present invention;

fig. 4 is a schematic structural view of a connecting mechanism of a slope supporting structure excavated by a foundation pit of a pier of a steep slope section, which is provided by the invention;

fig. 5 is an exploded structural diagram of a fixing mechanism of a slope supporting structure excavated by a foundation pit of a pier of a steep slope section, which is provided by the invention;

fig. 6 is a structural schematic diagram of a state of the fixing mechanism of the slope supporting structure for excavation of the pier foundation pit in the steep slope section, which is provided by the invention, in operation.

The reference numbers in the figures illustrate:

1. mounting a plate; 2. a water collecting and irrigating mechanism; 201. a water collection tank; 202. a water inlet; 203. a water pump; 204. a shunt tube; 205. a discharge pipe; 3. a water chute; 4. a filter housing; 5. a drain pipe; 6. a connecting mechanism; 601. a connecting shaft; 602. a first connecting hinge; 603. a second connecting hinge; 604. a shock pad; 605. a fixing plate; 606. a first connecting bolt; 607. a second connecting bolt; 608. a first anti-seismic spring; 609. a second shock absorbing spring; 7. a first connecting plate; 8. a second connecting plate; 9. fixing a slope net; 10. a fixing mechanism; 1001. a fixed tube; 1002. a first external thread; 1003. limiting the opening; 1004. adjusting a rod; 1005. an auxiliary connecting rod; 1006. a second external thread; 1007. a limiting ring; 1008. mounting a disc; 1009. a movable claw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-3, a slope supporting structure for foundation pit excavation of pier in a steep slope section comprises a mounting plate 1, wherein the mounting plate 1 is fixedly arranged on the ground at the top end of the slope, a water collecting and irrigating mechanism 2 is connected to the mounting plate 1, a water guiding chute 3 is arranged between the water collecting and irrigating mechanism 2 and the side wall at the two ends of the mounting plate 1, a filter cover 4 is arranged at the tail end of the water guiding chute 3, the filter cover 4 is fixedly connected with the mounting plate 1, and a drain pipe 5 is fixedly connected to the side wall of the mounting plate 1; the side wall mounting of the front end of mounting panel 1 has coupling mechanism 6, still is connected with first connecting plate 7 on coupling mechanism 6, and the below of first connecting plate 7 is provided with second connecting plate 8, and fixedly connected with solid slope net 9 between first connecting plate 7 and the second connecting plate 8 is provided with the installation trompil on mounting panel 1 and the second connecting plate 8, is connected with fixed establishment 10 on the installation trompil.

Water collection and irrigation mechanism 2 is including header tank 201, header tank 201 designs for trapezoidal, header tank 201 fixed connection is on mounting panel 1, water inlet 202 has been seted up on header tank 201's the top surface, header tank 201's inside is provided with the chamber that catchments, the fixed mounting who catchments intracavity portion has water pump 203, fixedly connected with shunt tubes 204 on the water pump 203, fixedly connected with discharge pipe 205 on the shunt tubes 204, discharge pipe 205 runs through header tank 201 and buries underground in the soil of firm slope net 9 below, be provided with the apopore on the discharge pipe 205.

According to the invention, the mounting plate 1 is arranged at the top end of the device body, the water collecting and irrigating mechanism 2 is arranged on the mounting plate 1, the water guide grooves 3 are formed between the trapezoidal water collecting tank 201 of the water collecting and irrigating mechanism 2 and two sides of the mounting plate 1, when rainfall occurs, rainwater above the slope surface is partially collected by the water collecting tank 201, and the other part of rainwater is discharged to the bottom of the slope surface along the water guide grooves 3 through the water discharge pipe 5, so that the situation that the slope surface is washed by water flow formed above the slope surface in the rainfall weather is avoided, and the probability of landslide is greatly reduced; lay solid slope net 9 on domatic, gu the mesh has been seted up on the slope net 9, can plant the vegetation in the soil under the mesh, and through the ponding watering mechanism at top, can when weather is hot, utilize the inside water pump 203 of header tank 201 to water for domatic vegetation, through planting green plant, can play better solid slope effect on the one hand, on the other hand is also better beautifies the environment.

Example 2:

referring to fig. 4, the basic difference between the embodiment 1 and the embodiment is that the connection mechanism 6 includes a connection shaft 601, a first connection hinge 602 and a second connection hinge 603, the first connection hinge 602 and the second connection hinge 603 are both rotatably connected to the connection shaft 601, and a shock absorbing pad 604 is fixedly connected to the outer side wall of each of the first connection hinge 602 and the second connection hinge 603.

The connecting mechanism 6 further comprises a first connecting bolt 606 and a second connecting bolt 607, a fixing plate 605 is connected to the first connecting hinge 602 and the second connecting hinge 603, connecting holes are formed in the first connecting hinge 602, the second connecting hinge 603, the shock pad 604 and the fixing plate 605, the first connecting bolt 606 penetrates through the fixing plate 605, the first connecting hinge 602 and the shock pad 604 and is spirally and fixedly connected in a threaded hole in the side wall of the front end of the mounting plate 1, and the second connecting bolt 607 penetrates through the fixing plate 605, the second connecting hinge 603 and the shock pad 604 and is spirally and fixedly connected in a threaded hole in the first connecting plate 7.

A first anti-vibration spring 608 is further arranged between the first connecting hinge 602, the second connecting hinge 603 and the fixing plate 605, and the first anti-vibration spring 608 is sleeved on the first connecting bolt 606 and the second connecting bolt 607; a second shock absorbing spring 609 is disposed between the two fixing plates 605, and two ends of the second shock absorbing spring 609 are fixedly connected to the first connecting hinge 602 and the second connecting hinge 603, respectively.

In the invention, a connecting mechanism 6 is arranged between a mounting plate 1 and a first connecting plate 7, the connecting mechanism 6 comprises a first connecting hinge 602 and a second connecting hinge 603, when in use, connecting holes of the first connecting hinge 602 and the second connecting hinge 603 are respectively aligned with threaded holes on the side wall of the front end of the mounting plate 1 and the first connecting plate 7, then a first connecting bolt 606 and a second connecting bolt 607 pass through a fixing plate 605 and a first anti-seismic spring 608 and are finally spirally connected with the threaded holes, and when construction causes the slope to vibrate, the first anti-seismic spring 608 can effectively absorb certain vibration and better ensure the stability and the firmness of the connecting mechanism 6 by arranging the first anti-seismic spring 608, besides, a shock pad 604 and a second anti-seismic spring 609 are also connected on the first connecting hinge 602 and the second connecting hinge 603, and a rubber anti-seismic pad and a second anti-seismic spring 609 are utilized, the shock resistance of improvement device body that can be better has effectively solved current project organization comparatively fixedly, and construction produces vibrations and easily produces the problem of influence to supporting construction's rigidity.

Example 3:

referring to fig. 5 to 6, the difference between the embodiment 1 and the above embodiment is that the fixing mechanism 10 includes a fixing tube 1001, a first external thread 1002 is fixedly connected to an outer wall of an upper end of the fixing tube 1001, the fixing tube 1001 is screwed to the mounting hole through the first external thread 1002, and a limiting opening 1003 is formed at a bottom end of the fixing tube 1001.

Fixed pipe 1001's inside is provided with adjusts pole 1004, adjust pole 1004's upper end fixedly connected with auxiliary connecting rod 1005, it connects inside fixed pipe 1001 to adjust pole 1004 to rotate through auxiliary connecting rod 1005, fixedly connected with second external screw thread 1006 on the lower extreme outer wall of adjusting pole 1004, adjust pole 1004 through second external screw thread 1006 screw connection on spacing ring 1007, spacing ring 1007 fixed connection is on fixed pipe 1001's inner wall, the bottom of adjusting pole 1004 rotates to be connected on mounting disc 1008, it is connected with the free claw 1009 to rotate on mounting disc 1008, free claw 1009 and spacing opening 1003 phase-match.

The mounting plate 1 at the top and the second connecting plate 8 at the bottom are both arranged on a plane, compared with the existing mounting mode designed on a slope surface, the mounting mode of the invention is more stable and safer, meanwhile, the mounting plate 1 and the second connecting plate 8 are both arranged on the ground through the fixing mechanism 10, when in use, a deep hole is drilled at the mounting hole of the mounting plate 1 and the second connecting plate 8 through drilling equipment, then the bottom of the fixing mechanism 10 is placed into the deep hole on the ground, the upper end of the fixing pipe 1001 of the fixing mechanism 10 is spirally and fixedly connected with the mounting hole through the first external thread 1002, the adjusting rod 1004 rotationally connected in the fixing pipe 1001 is rotated after the fixing pipe 1001 is screwed, the second external thread 1006 is fixedly connected at the bottom of the adjusting rod 1004, the second external thread 1006 is spirally connected with the limiting ring 1007 with the inside of the fixing pipe 1001, therefore, when the adjusting rod 1004 rotates, the second external thread 1006 and the limit ring 1007 interact with each other, so that the adjusting rod 1004 can move downwards, the bottom end of the adjusting rod 1004 is rotatably connected with the mounting plate 1008, and the movable claw 1009 rotatably connected to the safety disc is inserted into the limit opening 1003 at the bottom end of the fixed pipe 1001, when the adjusting rod 1004 moves downwards, due to the limiting effect of the limiting opening 1003 on the movable claw 1009, the movable claw 1009 can be made to turn over and inserted into the soil on the side wall of the deep hole, and when the movable claw 1009 rotates to the state shown in fig. 6, the rotation of the adjusting rod 1004 is stopped, so that the movable claw 1009 and the fixing mechanism 10 can be stably and firmly fixed on the ground in the state, and the firmness and the stability of the mounting plate 1 and the second connecting plate 8 are further ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a domatic supporting construction of abrupt slope section pier foundation ditch excavation, including mounting panel (1), its characterized in that: the mounting plate (1) is fixedly arranged on the ground at the top end of the slope, the mounting plate (1) is connected with a water collecting and irrigating mechanism (2), a water guide groove (3) is formed between the water collecting and irrigating mechanism (2) and the side walls at the two ends of the mounting plate (1), the tail end of the water guide groove (3) is provided with a filter cover (4), the filter cover (4) is fixedly connected with the mounting plate (1), and the side wall of the mounting plate (1) is fixedly connected with a drain pipe (5); the utility model discloses a solid slope net (9) of fixedly connected with between first connecting plate (7) and second connecting plate (8), be provided with the installation trompil on mounting panel (1) and second connecting plate (8), be connected with fixed establishment (10) on the installation trompil, the front end side wall mounting of mounting panel (1) has coupling mechanism (6), still be connected with first connecting plate (7) on coupling mechanism (6), the below of first connecting plate (7) is provided with second connecting plate (8), fixedly connected with solid slope net (9) between first connecting plate (7) and second connecting plate (8).

2. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 1, wherein: catchment watering mechanism (2) is including header tank (201), header tank (201) design is trapezoidal, header tank (201) fixed connection is on mounting panel (1), water inlet (202) have been seted up on the top surface of header tank (201), the inside of header tank (201) is provided with the chamber that catchments, the fixed mounting that catchments the intracavity portion has water pump (203), fixedly connected with shunt tubes (204) are gone up in water pump (203), fixedly connected with discharge pipe (205) are gone up in shunt tubes (204), discharge pipe (205) run through header tank (201) and bury underground in the soil of solid slope net (9) below, be provided with the apopore on discharge pipe (205).

3. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 1, wherein: the connecting mechanism (6) comprises a connecting shaft (601), a first connecting hinge (602) and a second connecting hinge (603), the first connecting hinge (602) and the second connecting hinge (603) are connected to the connecting shaft (601) in a rotating mode, and shock pads (604) are fixedly connected to the outer side walls of the first connecting hinge (602) and the second connecting hinge (603).

4. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 3, wherein: coupling mechanism (6) are still including first connecting bolt (606) and second connecting bolt (607), be connected with fixed plate (605) on first connection hinge (602) and second connection hinge (603), all be provided with the connecting hole on first connection hinge (602), second connection hinge (603), shock pad (604) and fixed plate (605), first connecting bolt (606) run through fixed plate (605), first connection hinge (602) and shock pad (604) spiral fixed connection are in the screw thread hole on the front end lateral wall of mounting panel (1), second connecting bolt (607) run through fixed plate (605), second connection hinge (603) and shock pad (604) spiral fixed connection are in the screw thread hole of first connecting plate (7).

5. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 4, wherein: a first anti-seismic spring (608) is further arranged between the first connecting hinge (602), the second connecting hinge (603) and the fixing plate (605), and the first anti-seismic spring (608) is connected to the first connecting bolt (606) and the second connecting bolt (607) in a sleeved mode; and a second shock-proof spring (609) is arranged between the two fixing plates (605), and two ends of the second shock-proof spring (609) are fixedly connected with the first connecting hinge (602) and the second connecting hinge (603) respectively.

6. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 1, wherein: fixed establishment (10) including fixed pipe (1001), first external screw thread (1002) of fixedly connected with on the upper end outer wall of fixed pipe (1001), fixed pipe (1001) are on the installation trompil through first external screw thread (1002) screwed connection, spacing opening (1003) have been seted up to the bottom of fixed pipe (1001).

7. The slope surface supporting structure for foundation pit excavation of the pier of the steep slope section as claimed in claim 6, wherein: the utility model discloses a spacing pipe (1001) is fixed, fixed pipe (1001) inside is provided with adjusts pole (1004), the upper end fixedly connected with auxiliary connecting rod (1005) of adjusting pole (1004), it rotates inside fixed pipe (1001) to connect through auxiliary connecting rod (1005) to adjust pole (1004), fixedly connected with second external screw thread (1006) on the lower extreme outer wall of adjusting pole (1004), adjust pole (1004) through second external screw thread (1006) screwed connection on spacing ring (1007), spacing ring (1007) fixed connection is on the inner wall of fixed pipe (1001), the bottom of adjusting pole (1004) is rotated and is connected on mounting disc (1008), it is connected with movable claw (1009) to rotate on mounting disc (1008), movable claw (1009) and spacing opening (1003) phase-match.