CN112195923A

CN112195923A - Foundation pit supporting structure with tunnel on side wall of foundation pit

Info

Publication number: CN112195923A
Application number: CN202010925021.XA
Authority: CN
Inventors: 徐锁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-06
Filing date: 2020-09-06
Publication date: 2021-01-08

Abstract

The invention discloses a foundation pit supporting structure with a tunnel in the side wall of a foundation pit, which comprises a first supporting bottom plate arranged on one side of a tunnel wall body, wherein two worms are symmetrically arranged on the side wall of the first supporting bottom plate, the worms are in threaded connection with the side wall of the first supporting bottom plate, a plurality of universal wheels are arranged at the bottom ends of the worms, a motor is fixedly arranged on the side wall of the first supporting bottom plate and is positioned between the two worms, the bottom end of a second rotating rod is fixedly connected with the output end of the motor, and the second rotating rod is connected with the worms on the two sides of the second rotating rod through a transmission assembly. According to the invention, on one hand, the anti-skid bottom plate can be contacted with the ground through the arranged universal wheels, after the anti-skid bottom plate is separated from the ground, the whole structure is more convenient to move by utilizing the rolling of the universal wheels, on the other hand, the anti-skid bottom plate is contacted with the ground, the stability of the whole supporting structure is enhanced, the anti-skid bottom plate is suitable for supporting walls with different inclination degrees, the adaptability is stronger, and the structure is more scientific and reasonable.

Description

Foundation pit supporting structure with tunnel on side wall of foundation pit

Technical Field

The invention belongs to the technical field of foundation pit supporting and relates to a foundation pit supporting structure with a tunnel on the side wall of a foundation pit.

Background

The foundation pit supporting engineering is a temporary engineering, the designed safety reserve is relatively small, but is related to the regional property, the characteristics of geological conditions of different regions are different, the foundation pit supporting engineering is a subject of mutual intersection of geotechnical engineering, structural engineering and construction technology, is a system engineering influenced by various complex factors in an interaction manner, is a comprehensive technical subject yet to be developed theoretically, is a key point for competing various construction units due to high construction cost and large number of operation, is also a key point of competing for construction units due to complex technology, wide range of involvement, multiple variation factors and frequent accidents, is the most challenging technical difficulty in the construction engineering, and is also a key point of reducing the construction cost and ensuring the engineering quality, and as a structural system, the requirement of stability and deformation, namely the requirement of two limit states, namely the limit state of bearing capacity and the limit state of normal use, is required to be met, the ultimate bearing capacity state refers to the state that the supporting structure is damaged, toppled and slid or the surrounding environment is damaged for the foundation pit supporting, and the instability in a large range occurs.

When meetting the engineering that lateral wall of foundation pit has the tunnel, current supporting construction design is unreasonable and too crude, and after accomplishing preliminary supporting construction and building, the stability of whole structure is not good enough, and move the in-process after the later stage dismouting and have a lot of inconveniences again, the angle of a dado can't be adjusted according to the actual inclination of tunnel wall body, holistic shoring quality must not promote, there is certain potential safety hazard, must design a lateral wall of foundation pit has the excavation supporting construction in tunnel to solve this type of problem.

Disclosure of Invention

The invention aims to provide a foundation pit supporting structure with a tunnel on the side wall of a foundation pit, which solves the problems in the prior art: current supporting construction design is unreasonable and too crude to after accomplishing preliminary supporting construction and building, the stability of overall structure is not good enough, and the removal in-process has a lot of inconveniences again after the later stage dismouting, can't adjust the angle of a dado according to the actual degree of inclination of tunnel wall, and holistic support quality can not obtain promoting, has certain potential safety hazard.

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

a foundation pit supporting structure with a tunnel in the side wall of a foundation pit comprises a first supporting bottom plate arranged on one side of a tunnel wall body, wherein two worms are symmetrically arranged on the side wall of the first supporting bottom plate, the worms are in threaded connection with the side wall of the first supporting bottom plate, a plurality of universal wheels are installed at the bottom ends of the worms, a motor is fixedly installed on the side wall of the first supporting bottom plate, the motor is located between the two worms, a second rotating rod is arranged at the top end of the motor, the bottom end of the second rotating rod is fixedly connected with the output end of the motor, the second rotating rod is connected with the worms on two sides of the second rotating rod through a transmission assembly, two first supporting bottom rods are symmetrically and fixedly connected with two first supporting bottom rods at two ends of the first supporting bottom plate, an anti-skidding bottom plate is fixedly connected with the bottom end of the first supporting bottom rod, the top end of the first fixed side plate is fixedly connected with a second supporting base plate, one end of the second supporting base plate, which is close to the tunnel wall body, is rotatably connected with a second supporting wall plate through a bearing, the side wall, which is close to the tunnel wall body, of the second supporting wall plate is provided with an anti-skidding cushion pad made of polyurethane material, the side walls at two sides of the second supporting wall plate are fixedly connected with two second fixed side plates, the side walls of the second fixed side plates are rotatably connected with ejector rods through second rotating shafts, one end, which is far away from the second supporting wall plate, of the ejector rods is rotatably connected with a metal plate through a first rotating shaft, the bottom end of the metal plate is fixed on the side wall of the second supporting base plate through a sliding pushing assembly, the top side wall, which is far away from one end of the second supporting wall plate, of the second supporting base plate is fixedly connected with a protective cover, a, the console is connected with the storage battery and the motor through power lines.

Preferably, transmission assembly includes that two symmetries set up the dwang two in dwang one both sides, the bottom of dwang two rotates with the lateral wall of supporting baseplate one to be connected, circumference is provided with a plurality of latches on the lateral wall on two tops of dwang, just be connected through the chain between latch of dwang two and the dwang one, it is equipped with the worm wheel still to fix the cover on the lateral wall of dwang two, just the worm wheel meshes with adjacent worm mutually.

Preferably, the sliding pushing assembly comprises sliding grooves formed in two side walls of the supporting bottom plate, sliding blocks are arranged in the sliding grooves in a sliding mode, the top ends of the sliding blocks extend out of the sliding grooves and are fixedly connected with the bottom side walls of the metal plates on the top ends of the sliding blocks, threaded rods are fixedly connected to one side walls of the sliding blocks, one ends of the threaded rods extend out of the outer ends of the sliding grooves and are connected with nuts, and one ends of the threaded rods, located on the outer sides of the sliding grooves, are in.

Preferably, the lamp shade that the top fixedly connected with transparent PVC material of protection casing was made, the inside of lamp shade is provided with a plurality of LED light components, just the light passes through the power cord and controls the platform to be connected.

Preferably, the side wall of the bottom end of the anti-skid bottom plate is fixedly connected with an anti-skid pad made of rubber materials.

Preferably, the first support base plate, the worm, the universal wheel, the motor, the first rotating rod, the second rotating rod, the chain, the worm wheel, the first support base rod, the first anti-skidding base plate, the first fixed side plate, the second support base plate, the wall supporting plate, the anti-skidding buffering cushion, the second fixed side plate, the ejector rod, the sliding groove, the sliding block, the metal plate, the threaded rod, the nut, the console and the protective cover main body are made of stainless steel materials.

Preferably, the corners of the first supporting base plate and the outer wall of the protective cover are provided with arc chamfers.

The invention has the beneficial effects that:

1. on one hand, the universal wheels can be promoted to lift under the common coordination of the motor, the worm wheel and the worm, so that the universal wheels can be separated from the ground when supporting operation is carried out, the anti-skid bottom plate is contacted with the ground, the stability of the whole supporting structure is enhanced, on the other hand, when the supporting operation is finished and the structure needs to be disassembled and moved, the universal wheels can be promoted to be contacted with the ground, and after the anti-skid bottom plate is separated from the ground, the whole structure can be moved more conveniently by rolling of the universal wheels;

2. utilize the back that supports the wallboard to the wall body that sets up, the subassembly is passed in the slip that the cooperation set up, can be according to the actual topography in place tunnel, adjusts the inclination of whole wall panel to this wall body that is applicable to different slope degree more is strutted, and adaptability is stronger, and the structure is scientific and reasonable more.

Drawings

Fig. 1 is a schematic structural view of a front surface of a foundation pit supporting structure with a tunnel on a side wall of a foundation pit according to the invention;

FIG. 2 is an enlarged view of the structure A in FIG. 1;

fig. 3 is a schematic front structural view of a foundation pit supporting structure with a tunnel on a side wall of a foundation pit according to the present invention when universal wheels are in a retracted state;

fig. 4 is a detailed structural diagram of the tunnel wall, the first support bottom plate, the worm, the universal wheel, the second rotating rod, the chain, the worm wheel, the first support bottom rod and the anti-skid bottom plate.

In the figure: the tunnel wall body, the supporting bottom plate I, the worm 3, the universal wheel 4, the motor 5, the rotating rod I6, the rotating rod II 7, the chain 8, the worm wheel 9, the supporting bottom rod I10, the anti-skidding bottom plate 11, the fixed side plate I12, the supporting bottom plate II 13, the wall protecting plate 14, the anti-skidding buffering cushion 15, the fixed side plate II 16, the ejector rod 17, the sliding chute 18, the sliding block 19, the metal plate 20, the threaded rod 21, the nut 22, the control platform 23, the protective cover 24, the storage battery 25, the charging port 26, the lampshade 27, the illuminating lamp 28, the first rotating shaft 29 and the second rotating shaft 30.

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.

Referring to fig. 1-3, a foundation pit supporting structure with a tunnel on the side wall of a foundation pit comprises a first supporting bottom plate 2 arranged on one side of a tunnel wall body 1, two worms 3 are symmetrically arranged on the side wall of the first supporting bottom plate 2, the worms 3 are in threaded connection with the side wall of the first supporting bottom plate 2, a plurality of universal wheels 4 are arranged at the bottom end of the worms 3, a motor 5 is fixedly arranged on the side wall of the first supporting bottom plate 2, the motor 5 is arranged between the two worms 3, a second rotating rod 7 is arranged at the top end of the motor 5, the bottom end of the second rotating rod 7 is fixedly connected with the output end of the motor 5, the second rotating rod 7 is connected with the worms 3 on two sides of the second rotating rod through a transmission assembly, the transmission assembly comprises two second rotating rods 7 symmetrically arranged on two sides of the first rotating rod 6, the bottom end of the second rotating rod 7 is rotatably connected with, the latch of the second rotating rod 7 is connected with the first rotating rod 6 through a chain 8, the side wall of the second rotating rod 7 is also fixedly sleeved with a worm wheel 9, the worm wheel 9 is meshed with the adjacent worm 3, two ends of the first supporting bottom plate 2 are symmetrically and fixedly connected with two first supporting bottom rods 10, the bottom ends of the first supporting bottom rods 10 are fixedly connected with an anti-skidding bottom plate 11, two first fixed side plates 12 are symmetrically and fixedly connected with the top side walls of the two ends of the first supporting bottom plate 2, the top ends of the first fixed side plates 12 are fixedly connected with a second supporting bottom plate 13, one end of the second supporting bottom plate 13, which is close to the tunnel wall 1, is rotatably connected with a supporting wall plate 14 through a bearing, one side wall of the supporting wall plate 14, which is close to the tunnel wall 1, is provided with an anti-skidding cushion pad 15 made of polyurethane material, two second fixed side plates 16 are fixedly connected with the side walls of the two sides, one end of the ejector rod 17 far away from the supporting wall plate 14 is rotatably connected with a metal plate 20 through a first rotating shaft 29, the bottom end of the metal plate 20 is fixed on the side wall of the supporting bottom plate two 13 through a sliding pushing assembly, the sliding pushing assembly comprises a sliding groove 18 arranged on the side wall of the supporting bottom plate two 13, a sliding block 19 is arranged in the sliding groove 18 in a sliding mode, the top end of the sliding block 19 extends out of the sliding groove 18 and is fixedly connected with the bottom side wall of the metal plate 20 at the top end of the sliding block 19, a threaded rod 21 is fixedly connected onto one side wall of the sliding block 19, one end of the threaded rod 21 extends out of the outer end of the sliding groove 18, a nut 22 is connected onto one end, located outside the sliding groove 18, of the threaded rod 21, of the supporting bottom plate two 13 far away from the supporting wall plate 14 through a threaded connection, a protective cover 24 is fixedly connected onto the top side, the control platform 23 is connected with the storage battery 25 and the motor 5 through power lines, the top end of the protective cover 24 is fixedly connected with a lampshade 27 made of transparent PVC materials, a plurality of LED illuminating lamp 28 assemblies are arranged inside the lampshade 27, the illuminating lamp 28 is connected with the control platform 23 through the power lines, the side wall of the bottom end of the antiskid bottom plate 11 is fixedly connected with an antiskid pad made of rubber materials, the first supporting bottom plate 2, the worm 3, the universal wheel 4, the motor 5, the first rotating rod 6, the second rotating rod 7, the chain 8, the worm wheel 9, the first supporting bottom rod 10, the antiskid bottom plate 11, the first fixed side plate 12, the second supporting bottom plate 13, the supporting wall plate 14, the antiskid cushion 15, the second fixed side plate 16, the ejector rod 17, the sliding chute 18, the sliding block 19, the metal plate 20, the threaded rod 21, the nut 22, the control platform 23 and the protective cover 24 are made of stainless steel materials, the first, the collision is prevented in the moving process, and certain protection is realized.

In the invention, when the supporting structure is used, the whole supporting structure is moved to a tunnel region to be supported by rolling of the universal wheel 4, then the motor 5 is started to operate, after the rotating rod I6 rotates, force is transmitted to the rotating rod II 7 by the chain 8, after the rotating rod II 7 rotates, the worm wheel 9 on the side wall of the rotating rod II 7 is enabled to be meshed with the worm 3, so that the worm 3 is driven to rotate on the side wall of the supporting bottom plate I2, so that the universal wheel 4 gradually retracts towards the direction of the supporting bottom plate I2, so that the anti-skid bottom plate 11 is gradually contacted with the ground, finally the anti-skid bottom plate 11 is supported on the ground, so that the contact area with the ground is increased, the insufficient stability in the supporting process is avoided, then the sliding block 19 slides in the sliding chute 18 according to the actual inclination angle of the tunnel wall body 1, and then the supporting wall plate 14 at one end of the ejector rod 17 is enabled to be, with this inclination that changes a dado 14, after the inclination of a dado 14 and the inclination of tunnel wall 1 are unanimous roughly, will prop up the anti-skidding blotter 15 and the wall body laminating of dado 14 one side to swivel nut 22, to the position of slider 19 lock can, whole structural design is ingenious, easy dismounting.

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 technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A foundation pit supporting structure with a tunnel in the side wall of a foundation pit comprises a first supporting bottom plate (2) arranged on one side of a tunnel wall body (1) and is characterized in that two worms (3) are symmetrically arranged on the side wall of the first supporting bottom plate (2), the worms (3) are in threaded connection with the side wall of the first supporting bottom plate (2), a plurality of universal wheels (4) are installed at the bottom end of the worms (3), a motor (5) is fixedly installed on the side wall of the first supporting bottom plate (2), the motor (5) is located between the two worms (3), a rotating rod (7) is arranged at the top end of the motor (5), the bottom end of the rotating rod (7) is fixedly connected with the output end of the motor (5), the rotating rod (7) is connected with the worms (3) on two sides of the rotating rod (7) through a transmission assembly, and two first supporting bottom rods (10) are symmetrically and fixedly connected with the two ends of the first supporting bottom, the anti-skidding wall plate is characterized in that an anti-skidding bottom plate (11) is fixedly connected to the bottom end of a first supporting bottom rod (10), two first fixed side plates (12) are symmetrically and fixedly connected to the top side walls at two ends of a first supporting bottom plate (2), a second supporting bottom plate (13) is fixedly connected to the top end of the first fixed side plates (12), one end, close to a tunnel wall body (1), of the second supporting bottom plate (13) is rotatably connected with a second supporting wall plate (14) through a bearing, an anti-skidding cushion pad (15) made of a polyurethane material is arranged on one side wall, close to the tunnel wall body (1), of the second supporting wall plate (14), two second fixed side plates (16) are fixedly connected to the side walls at two sides of the second supporting wall plate (14), an ejector rod (17) is rotatably connected to the side walls of the second fixed side plates (16) through a second rotating shaft (30), and one end, far away from the first supporting, the bottom of metal sheet (20) is passed through the slip and is passed the subassembly and fix on the lateral wall of supporting baseplate two (13), fixedly connected with protection casing (24) on the top lateral wall of a dado (14) one end is kept away from in supporting baseplate two (13), install battery (25) in protection casing (24), be provided with on the lateral wall of protection casing (24) and charge mouth (26), just one end fixedly connected with that a dado (14) were kept away from in supporting baseplate two (13) controls platform (23), it is connected with battery (25), motor (5) through the power cord to control platform (23).

2. The foundation pit supporting structure with the tunnel in the side wall of the foundation pit according to claim 1, wherein the transmission assembly comprises two symmetrical rotating rods two (7) arranged at two sides of a rotating rod one (6), the bottom end of the rotating rod two (7) is rotationally connected with the side wall of a supporting bottom plate one (2), a plurality of clamping teeth are circumferentially arranged on the side wall of the top end of the rotating rod two (7), the clamping teeth of the rotating rod two (7) are connected with the rotating rod one (6) through chains (8), a worm wheel (9) is fixedly arranged on the side wall of the rotating rod two (7), and the worm wheel (9) is meshed with an adjacent worm (3).

3. The foundation pit supporting structure with the tunnel on the side wall of the foundation pit as claimed in claim 1, wherein the sliding pushing assembly comprises a sliding groove (18) arranged on the side wall of the supporting bottom plate (13), a sliding block (19) is arranged in the sliding groove (18) in a sliding manner, the top end of the sliding block (19) extends out of the sliding groove (18) and is fixedly connected with the bottom side wall of the metal plate (20) at the top end of the sliding block, a threaded rod (21) is fixedly connected to one side wall of the sliding block (19), one end of the threaded rod (21) extends out of the outer end of the sliding groove (18) for arrangement, and a nut (22) is connected to one end of the threaded rod (21) located outside the sliding groove (18.

4. The foundation pit supporting structure with the tunnel in the side wall of the foundation pit according to claim 1, wherein a lampshade (27) made of transparent PVC material is fixedly connected to the top end of the protective cover (24), a plurality of LED illuminating lamp (28) assemblies are arranged inside the lampshade (27), and the illuminating lamps (28) are connected with the control platform (23) through power lines.

5. The foundation pit supporting structure with the tunnel on the side wall of the foundation pit according to claim 1, wherein a non-slip mat made of rubber material is fixedly connected to the side wall at the bottom end of the non-slip bottom plate (11).

6. The foundation pit supporting structure with the tunnel on the side wall of the foundation pit according to claim 1, wherein the supporting base plate I (2), the worm (3), the universal wheel (4), the motor (5), the rotating rod I (6), the rotating rod II (7), the chain (8), the worm wheel (9), the supporting base rod I (10), the anti-skidding base plate I (11), the fixed side plate I (12), the supporting base plate II (13), the supporting wall plate (14), the anti-skidding cushion pad (15), the fixed side plate II (16), the ejector rod (17), the sliding groove (18), the sliding block (19), the metal plate (20), the threaded rod (21), the nut (22), the control platform (23) and the protective cover (24) are made of stainless steel materials.

7. The supporting structure of the foundation pit with the tunnel on the side wall of the foundation pit as claimed in claim 1, wherein the corners of the outer walls of the first supporting bottom plate (2) and the protective cover (24) are provided with circular arc chamfers.