Reusable portable combined steel structure retaining wall device and construction method

Abstract

The invention belongs to the technical field of filling mining, particularly relates to a reusable portable combined steel structure retaining wall device and a construction method, and provides the following scheme aiming at the problems of high price and low construction efficiency of existing concrete construction: the portable combined steel structure retaining wall device comprises a combined steel structure arranged in a roadway, the combined steel structure is composed of a framework assembly, a plurality of stand columns and connectors. The stand columns are located on the rear side of the framework assembly. The combined steel structure further comprises a plurality of supporting components, and the supporting components are located on the rear side of the combined steel structure and used for supporting the combined steel structure. All parts can be repeatedly used while the efficiency of building the retaining wall is greatly improved, and the use cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of filling mining, and in particular to a reusable and convenient combined steel structure retaining wall device and a construction method. Background Art

[0002] Backfill mining is a method of directly or after processing the solid waste generated during the mining process into the goaf. It can effectively control ground pressure activities and surface collapse, improve the recovery rate, and protect surface vegetation. It is a safer and greener mining method. At present, most mines in China require the use of this method. Before backfilling, a backfill retaining wall must be built at the junction of the stope and the stope connecting road to ensure that the backfill material remains in the goaf and avoids its loss, thereby ensuring the safety and effectiveness of backfilling.

[0003] At present, most of the infill retaining walls are constructed with artificial concrete, but this method is expensive and increases the labor intensity of workers, resulting in low efficiency of retaining wall construction. In addition, in order to enhance the strength and stability of the retaining wall, some retaining walls will add materials such as steel mesh during construction.

[0004] In view of the above problems, the present invention document proposes a reusable and convenient combined steel structure retaining wall device and construction method. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of existing concrete construction, such as high price and low construction efficiency, and to propose a reusable and convenient combined steel structure retaining wall device and construction method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A reusable and convenient combined steel structure retaining wall device comprises a combined steel structure arranged in a lane, the combined steel structure is composed of a frame assembly, a plurality of columns and a connector, and a plurality of the columns are located at the rear side of the frame assembly; It also includes a plurality of supporting members, and the supporting members are located at the rear side of the combined steel structure for supporting the combined steel structure; It also includes a rhombus hexagonal chain link fence and a filter cloth, wherein the rhombus hexagonal chain link fence is located on the front side of the combined steel structure and is fixedly connected to the frame member through iron wire, and the filter cloth is located on the side of the rhombus hexagonal chain link fence away from the frame member, and the filter cloth is fixedly connected to the rhombus hexagonal chain link fence through iron wire.

[0007] In a possible design, the skeleton assembly is composed of multiple skeleton components, which include 2 round steels, 2 inner square steel sleeves and 3 outer square steel sleeves. The ends of the two round steels that are away from each other extend to the inner walls on both sides of the tunnel respectively. The two inner square steel sleeves are slidably sleeved between two adjacent outer square steel sleeves, and one end of the inner square steel sleeve extends into the adjacent outer square steel sleeve. The ends of the two round steels that are close to each other slide and extend into the adjacent outer square steel sleeves respectively. First pin holes are provided on both sides of the top of the outer square steel sleeve, and second pin holes are provided on both sides of the top of the inner square steel sleeve, and the second pin holes are matched with adjacent first pin holes. The same countersunk pin rod runs through the adjacent first pin holes and the second pin holes, which is used to limit the adjacent outer square steel sleeves and the inner square steel sleeves.

[0008] In a possible design, the connector includes a first half sleeve and a second half sleeve, the first half sleeve and the second half sleeve are sleeved on the outer wall of one of the outer square steel sleeves, the second half sleeve is provided with a through groove for sleeved adjacent columns, the top and bottom of the first half sleeve are fixed with two second connecting ears, the top and bottom of the second half sleeve are fixed with two first connecting ears, the adjacent first connecting ears cooperate with the second connecting ears, the adjacent first connecting ears and the second connecting ears are penetrated with the same countersunk screw, the outer wall thread sleeve of the countersunk screw is provided with a fastening nut, and the fastening screw The nut is located on the side of the second connecting ear away from the first connecting ear. The first connecting ear, the second connecting ear, the countersunk screw and the fastening nut are used to connect the column to the adjacent outer square steel sleeve; the column is connected to the adjacent outer square steel sleeve through the connector, and the first half sleeve and the second half sleeve are respectively mounted on both sides of the outer square steel sleeve, and the second half sleeve wraps the column through the through groove, and the first half sleeve and the second half sleeve are tightly connected by the countersunk screw and the fastening nut to complete the fixed installation of the outer square steel sleeve and the column. In addition, the strip plate is inserted into the strip groove to ensure the stability of the column in the through groove.

[0009] In a possible design, the supporting member includes a mounting base, a sleeve, a threaded rod and a connecting seat, the mounting base is fixed to the bottom inner wall of the tunnel by bolts, the bottom end of the sleeve is rotated on the top of the mounting base by a rotating shaft, the top end of the sleeve is rotatably connected to a circular nut block, the bottom end thread of the threaded rod penetrates the circular nut block and extends into the sleeve, the rotation of the circular nut block is used to control the extension length of the threaded rod, the top end of the threaded rod is rotatably connected to one side of the connecting seat by a rotating shaft, and two limit plates are fixed to the side of the connecting seat away from the threaded rod, the two limit plates are located above and below adjacent connectors, and the two limit plates are provided with through holes for the column to pass through, and the cooperation between the limit plates and the through holes is used for the column For further stability, a first fastening bolt and a second fastening bolt are inserted through the connecting seat, and the first fastening bolt has one end away from the connecting seat and is threadedly extended into the corresponding outer square steel sleeve, and the second fastening bolt has one end away from the connecting seat and is threadedly extended into the corresponding inner square steel sleeve, so as to increase the stability of the connecting seat and the outer square steel sleeve and the inner square steel sleeve; the mounting base plate is fixed to the bottom inner wall of the tunnel by bolts, the threaded rod is extended into the sleeve by the cooperation of the circular nut block and the threaded rod, the extension length of the threaded rod is adjusted, and then the connecting seat is fixed to the adjacent outer square steel sleeve and the inner square steel sleeve by the first fastening bolt and the second fastening bolt, so as to support the outer square steel sleeve, the inner square steel sleeve and the skeleton member.

[0010] In a possible design, the outer wall of the column is provided with a plurality of anti-slip groove sections, the anti-slip groove sections are composed of a plurality of strip grooves, and the plurality of strip grooves are arranged in a ring shape on the outer wall of the column, and a plurality of strip plates are fixed to the inner wall of the through groove away from the first half sleeve on the side, and the strip plates cooperate with the strip grooves to increase the stability of the column in the through groove.

[0011] In a possible design, the length of the round steel is 1 m, and the length of one end of the round steel exposed in the tunnel is 20-30 cm.

[0012] In a possible design, the number of the frame components is at least five.

[0013] In a possible design, a water collecting trough is provided on the bottom inner wall of the tunnel, and the bottom end of the column extends into the water collecting trough to collect water filtered by the filter cloth when constructing the retaining wall, so as to facilitate subsequent discharge.

[0014] In a possible design, circular grooves are provided at the top and bottom ends of the column, and plug rods are slidably connected in the two circular grooves. A sliding plate is fixed at one end of the two plug rods close to each other, and the sliding plate slides in the circular grooves. Two sliding strip holes are provided on one side of the column, and the sliding strip holes are connected to adjacent circular grooves. One end of the sliding plate extends into the adjacent sliding strip holes and is slidably connected to the sliding strip holes. Sliding grooves are provided in the two sliding plates, and pressure plates are slidably connected in the two sliding grooves. Guide holes are provided in the two pressure plates, and the two guide holes are penetrated by The fixing anchor is used to fix the two pressure plates on the top inner wall and the bottom inner wall of the tunnel respectively. A guide rod is fixed to the inner wall of one side of the two sliding plates. A circular hole is provided in the two pressure plates. The circular hole passes through the guide hole. One end of the guide rod slides through the circular hole to increase the stability of the pressure plate. The pressure plate is pulled out of the sliding groove, and the insertion rod is driven to move out of the circular groove through the cooperation of the pressure plate and the sliding plate. Then the two insertion rods are respectively inserted into the top inner wall and the bottom inner wall of the tunnel, and the column is stably installed in the tunnel. Then, the fixing anchor is inserted into the inner wall of the tunnel through the guide hole to ensure the stability of the insertion rod.

[0015] In the present application, a construction method of a reusable and convenient combined steel structure retaining wall device comprises the following steps: S1. Assembly of round steel and square steel sleeves: drive 1m long round steel into the inner walls of both sides of the tunnel, 5 on each side, with 20-30cm exposed; put the outer square steel sleeve on the round steel, and then put the inner square steel sleeve on the other side of the outer square steel sleeve, and so on; use three outer square steel sleeves, two inner square steel sleeves, and two round steels in each row; after assembly, use the countersunk pin rod to cooperate with the first pin hole and the second pin hole to complete the assembly of the skeleton components of the skeleton member.

[0016] S2. Installation and fixation of columns: install the columns on the rear side of the skeleton member; pull out the pressure plate, and use the pressure plate and sliding plate to drive the insertion rod to move out of the circular groove, insert it into the top and bottom inner walls of the tunnel, and install the columns steadily; insert the fixing anchor through the guide hole and insert it into the inner wall of the tunnel to ensure the stability of the insertion rod.

[0017] S3. Connection between the column and the outer square steel sleeve: connect the column to the adjacent outer square steel sleeve through a connector; put the first half sleeve and the second half sleeve on both sides of the outer square steel sleeve respectively, and wrap the column with the second half sleeve through the through groove; tightly connect the first half sleeve and the second half sleeve through the countersunk screw and the fastening nut to complete the fixed installation; insert the strip plate into the strip groove to ensure that the column is stable in the through groove.

[0018] S4. Fixing the connecting seat with the square steel sleeve: When installing the column, put the connecting seat on the outer wall of the column through the limit plate; fix the installation base plate to the inner wall of the bottom of the tunnel by bolts; extend the threaded rod into the sleeve through the cooperation of the circular nut block and the threaded rod to adjust the length; fix the connecting seat to the adjacent outer square steel sleeve and the inner square steel sleeve by the first fastening bolt and the second fastening bolt to support the skeleton member.

[0019] S5. Installation of chain link fence, filter cloth and water collection trough: install the diamond hexagonal chain link fence on the front side of the frame assembly through iron wire, and install the filter cloth on the front side of the diamond hexagonal chain link fence through iron wire; use tailings to cement the filling material to construct the filling retaining wall; open a water collection trough at the bottom of the tunnel, and the bottom end of the column extends into the water collection trough, which is located on the rear side of the frame component; the filtered water is collected in the water collection trough and discharged to the outside through a hose.

[0020] Beneficial effects: In the present invention, the ends of the two round steels that are away from each other extend to the inner walls on both sides of the tunnel respectively, the two inner square steel sleeves are respectively slidably sleeved between the two adjacent outer square steel sleeves, and the ends of the two round steels that are close to each other are respectively slidably extended into the corresponding outer square steel sleeves; the assembly of the skeleton components can be easily completed through the cooperation of the round steels, the outer square steel sleeves and the inner square steel sleeves, which greatly improves the efficiency of building the retaining wall, can be easily disassembled, and can be reused later, which greatly reduces the cost of building the retaining wall; In the present invention, the first half sleeve and the second half sleeve are sleeved on the outer wall of the outer square steel sleeve adjacent to the column, and a through groove is provided in the second half sleeve for sleeve-mounting the column, and two second connecting ears are fixed on the top and bottom of the first half sleeve, and two first connecting ears are fixed on the top and bottom of the second half sleeve; the column is connected to the adjacent outer square steel sleeve through a connector, and the first half sleeve and the second half sleeve are respectively sleeved on both sides of the outer square steel sleeve, and the second half sleeve wraps the column through the through groove, and the first half sleeve and the second half sleeve are tightly connected by the countersunk screw and the fastening nut, so that the outer square steel sleeve and the column are fixedly installed, and the installation and disassembly are extremely simple, which improves the efficiency of building the retaining wall and reduces the construction cost; In the present invention, the bottom end of the sleeve rotates on the top of the mounting base plate, and the top end of the sleeve is rotatably connected with a circular nut block. The bottom end thread of the threaded rod penetrates the circular nut block and extends into the sleeve. The threaded rod is rotatably connected to one side of the connecting seat, and two limit plates are fixed on the side of the connecting seat away from the threaded rod. Through holes are provided in the two limit plates, and the connecting seat is penetrated by a first fastening bolt and a second fastening bolt; the mounting base plate is fixed to the bottom inner wall of the tunnel by bolts, and the threaded rod is extended into the sleeve by the cooperation of the circular nut block and the threaded rod, and the extension length of the threaded rod is adjusted, and then the connecting seat is fixed to the adjacent outer square steel sleeve and the inner square steel sleeve by the first fastening bolt and the second fastening bolt, so that the outer square steel sleeve, the inner square steel sleeve and the skeleton member can be supported, which greatly improves the stability of the combined steel structure and avoids leakage of the filling material.

[0021] In the present invention, the modular steel structure can be easily assembled and disassembled by means of a skeleton component, a plurality of columns and a connector. While the efficiency of building the retaining wall is greatly improved, the skeleton component, the plurality of columns and the connector can also be reused, which greatly reduces the cost of building the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a reusable and portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 2 A three-dimensional cross-sectional structural schematic diagram of a reusable and portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 3 A schematic diagram of a three-dimensional exploded structure of a reusable and portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 4 A schematic diagram of a three-dimensional exploded structure of a skeleton component of a reusable portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of a connector, a column and an outer square steel sleeve of a reusable and portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 6 A schematic diagram of a three-dimensional exploded structure of a connector of a reusable and portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a connecting seat, a threaded rod and an outer square steel sleeve of a reusable portable combined steel structure retaining wall device provided in Example 1 of the present invention; Figure 8A schematic diagram of a three-dimensional exploded structure of a connecting seat and a connector of a reusable portable combined steel structure retaining wall device provided in Example 1 of the present invention; Fig. 9 A schematic diagram of a three-dimensional exploded structure of columns and plugs of a reusable and portable combined steel structure retaining wall device provided in Example 2 of the present invention; Fig.10 for Fig. 9 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1, tunnel; 2, skeleton member; 3, round steel; 4, outer square steel sleeve; 5, inner square steel sleeve; 6, first pin hole; 7, second pin hole; 8, countersunk pin rod; 9, column; 10, strip groove; 11, round groove; 12, sliding strip hole; 13, plug rod; 14, sliding plate; 15, sliding groove; 16, guide rod; 17, pressure plate; 18, fixed anchor; 19, connector; 20, first half sleeve; 21, second half sleeve; 22, through-slot; 23. Strip plate; 24. First connecting ear; 25. Second connecting ear; 26. Countersunk screw; 27. Fastening nut; 28. Support member; 29. ​​Mounting base plate; 30. Sleeve; 31. Threaded rod; 32. Round nut block; 33. Connecting seat; 34. Limiting plate; 35. Through hole; 36. First fastening bolt; 37. Second fastening bolt; 38. Diamond hexagonal chain link fence; 39. Filter cloth; 40. Water collecting trough; 41. Round hole; 42. Guide hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1: Reference Figure 1-Figure 3 The invention discloses a retaining wall device, which relates to the technical field of filling mining. The retaining wall device mainly comprises a combined steel structure, a supporting member 28, a diamond hexagonal chain link fence 38 and a filter cloth 39.

[0026] Reference Figure 3 and Figure 4The combined steel structure is the core part of the device, which consists of a skeleton assembly, a plurality of columns 9 and a connector 19. The skeleton assembly is further assembled from a plurality of skeleton members 2. Each skeleton member 2 includes two round steels 3, two inner square steel sleeves 5 and three outer square steel sleeves 4. One end of the two round steels 3 extends to the inner walls on both sides of the tunnel 1, respectively, to fix the position of the skeleton member 2. The two inner square steel sleeves 5 are respectively slidably sleeved between two adjacent outer square steel sleeves 4, and one end of the inner square steel sleeve 5 extends to the inside of the adjacent outer square steel sleeve 4. At the same time, the other ends of the two round steels 3 also slide and extend into the adjacent outer square steel sleeves 4, respectively, so as to achieve stable support of the skeleton member 2 in the tunnel 1.

[0027] Reference Figure 4 In order to fix the relative position of the inner square steel sleeve 5 and the outer square steel sleeve 4, first pin holes 6 are provided on both sides of the top of the outer square steel sleeve 4, and second pin holes 7 are provided on both sides of the top of the inner square steel sleeve 5. When the inner square steel sleeve 5 slides to a suitable position, the adjacent first pin holes 6 and second pin holes 7 will be aligned, and a countersunk pin rod 8 can be inserted to lock the relative position of the two.

[0028] Reference Figure 5 and Figure 6 The connector 19 is used to connect the column 9 with the outer square steel sleeve 4. The connector 19 includes a first half sleeve 20 and a second half sleeve 21, which are respectively sleeved on both sides of the outer square steel sleeve 4. A through groove 22 is provided in the second half sleeve 21 for sleeved the column 9. In order to tightly connect the first half sleeve 20 and the second half sleeve 21 together, two second connecting ears 25 are fixed on the top and bottom of the first half sleeve 20, and two first connecting ears 24 are fixed on the top and bottom of the second half sleeve 21. The adjacent first connecting ears 24 match with the second connecting ears 25 and are locked by the penetrating countersunk screw 26 and the fastening nut 27. In this way, the column 9 is firmly connected to the outer square steel sleeve 4.

[0029] Reference Figure 3 , Figure 7 and Figure 8, a plurality of support members 28 are arranged on the rear side of the combined steel structure to provide additional support for the combined steel structure and enhance its stability. The support member 28 is mainly composed of a mounting base plate 29, a sleeve 30, a threaded rod 31 and a connecting seat 33. In the actual installation process, the mounting base plate 29 is first firmly fixed to the bottom inner wall of the tunnel 1 by bolts to ensure its stability and load-bearing capacity. Then, the bottom end of the sleeve 30 is rotatably connected to the top of the mounting base plate 29 through a rotating shaft, so that the sleeve 30 can be rotated and adjusted within a certain range. At the top of the sleeve 30, a circular nut block 32 is rotatably connected. The function of this circular nut block 32 is to work with the threaded rod 31. The bottom end of the threaded rod 31 penetrates the circular nut block 32 through a thread and extends to the inside of the sleeve 30. When the extension length of the threaded rod 31 needs to be adjusted, it is only necessary to rotate the circular nut block 32. Due to the meshing action of the thread, the threaded rod 31 will move up and down in the sleeve 30 to reach the required length.

[0030] Reference Figure 7 and Figure 8 , the top end of the threaded rod 31 is rotatably connected to one side of the connecting seat 33 through a rotating shaft. In this way, the connecting seat 33 can be adjusted in angle within a certain range to meet the support requirements in different directions. Two limit plates 34 are fixed on the side of the connecting seat 33 away from the threaded rod 31. The two limit plates 34 are located above and below the adjacent connectors 19 to increase the stability of the column 9. In each limit plate 34, a through hole 35 for the column 9 to pass through is provided. In this way, when the column 9 passes through the through hole 35, it will be constrained by the limit plate 34, making it more stable.

[0031] Reference Figure 7 and Figure 8 In order to further increase the stability of the connection seat 33 and the outer square steel sleeve 4 and the inner square steel sleeve 5, a first fastening bolt 36 and a second fastening bolt 37 are passed through the connection seat 33. When the connection seat 33 is adjusted to a suitable position, the end of the first fastening bolt 36 away from the connection seat 33 is threadedly extended into the corresponding outer square steel sleeve 4, and the end of the second fastening bolt 37 away from the connection seat 33 is threadedly extended into the corresponding inner square steel sleeve 5. By tightening the two fastening bolts, the connection seat 33 can be firmly fixed on the outer square steel sleeve 4 and the inner square steel sleeve 5.

[0032] Reference Figure 5 and Figure 6Next, the anti-skid structure of the column 9 is described according to claim 5. A plurality of anti-skid sections are provided on the outer wall of the column 9. These anti-skid sections are composed of a plurality of strip grooves 10, and the plurality of strip grooves 10 are arranged in a ring shape on the outer wall of the column 9. At the same time, a plurality of strip plates 23 are fixed on the inner wall of the through groove 22 away from the first half sleeve 20. These strip plates 23 cooperate with the strip grooves 10, and when the column 9 passes through the through groove 22, the strip plates 23 will be embedded in the strip groove 10, thereby further increasing the stability of the column 9 in the through groove 22.

[0033] The length of the round steel 3 is 1 meter, and the length of one end exposed in the lane 1 is 30 centimeters. Such a design not only ensures the load-bearing capacity of the round steel 3, but also facilitates later installation and adjustment.

[0034] Reference Figure 3 The number of the frame members 2 is 5, and these frame members 2 are combined together in a predetermined arrangement to form the main supporting structure of the retaining wall.

[0035] Reference Figure 2 A water collection tank 40 is provided on the inner wall at the bottom of the lane 1. The water collection tank 40 is designed to collect water filtered by the filter cloth 39 when the retaining wall is constructed. When the water flows through the filter cloth 39, impurities are filtered out, and clean water flows into the water collection tank 40. In order to discharge or reuse the collected water later.

[0036] Through the above embodiment, the column 9 can be conveniently installed in the tunnel 1, and the stability of the retaining wall device can be ensured by the cooperation of the fixing anchor 18 and the plug rod 13. At the same time, the design of the water collection tank 40 also enables the filtered water to be effectively collected and utilized, thereby improving the utilization rate of resources. The entire device has a compact structure, is easy to operate, and is easy to disassemble and reuse, and has high practical value.

[0037] On the front side of the combined steel structure, a diamond hexagonal chain link fence 38 is fixedly connected by iron wire, and on the side of the diamond hexagonal chain link fence 38 away from the combined steel structure, a filter cloth 39 is fixedly connected by iron wire. The combination of the diamond hexagonal chain link fence 38 and the filter cloth 39 can block large objects and allow water to pass through, achieving a good filtering effect.

[0038] The device is not only stable in structure and easy to assemble and disassemble, but also has a combination design of rhombus hexagonal chain link fence 38 and filter cloth 39, so that the device has both blocking function and good filtering effect. In addition, all parts can be reused, which greatly reduces the use cost.

[0039] Example 2: Reference Fig. 9 and Fig.10, improved on the basis of Example 1: the column 9 is an important supporting component of the retaining wall device, and a circular groove 11 is provided at the top and bottom ends thereof. In the circular groove 11, an insertion rod 13 is slidably connected. One end of the insertion rod 13 is slidably connected to the side wall of the circular groove 11 through a sliding plate 14, and the sliding plate 14 can slide freely in the circular groove 11. In order to enable the insertion rod 13 to be easily extended or retracted into the circular groove 11, two sliding bar holes 12 are provided on one side of the column 9, and these sliding bar holes 12 are connected to the adjacent circular grooves 11. Therefore, when the sliding plate 14 slides in the circular groove 11, one end thereof can extend into the adjacent sliding bar hole 12, and maintain a stable sliding trajectory through the sliding connection with the sliding bar hole 12.

[0040] refer to Fig. 9 and Fig.10 A sliding groove 15 is provided in the sliding plate 14 for accommodating the pressing plate 17. The pressing plate 17 can slide freely in the sliding groove 15 to facilitate subsequent fixing operations. A guide hole 42 is provided in the pressing plate 17 for passing through the fixing anchor 18. When it is necessary to fix the column 9 in the tunnel 1, the pressing plate 17 can be pulled out of the sliding groove 15 first, and then the insertion rod 13 can be driven out of the circular groove 11 through the cooperation of the pressing plate 17 and the sliding plate 14. At this time, the two insertion rods 13 can be respectively inserted into the top inner wall and the bottom inner wall of the tunnel 1, so that the column 9 can be stably installed in the tunnel 1.

[0041] refer to Fig. 9 and Fig.10 In order to ensure the stability of the insertion rod 13, a fixing anchor 18 is also required. The fixing anchor 18 can pass through the guide hole 42 on the pressure plate 17 and be inserted into the inner wall of the tunnel 1. In this way, the fixing anchor 18 can firmly fix the pressure plate 17 and the insertion rod 13 in the tunnel 1, thereby ensuring the stability of the column 9.

[0042] refer to Fig. 9 and Fig.10 In addition, in order to increase the stability of the pressing plate 17, a guide rod 16 is fixed to the inner wall of one side of the sliding plate 14. A round hole 41 matching the guide rod 16 is provided in the pressing plate 17. When the pressing plate 17 slides in the sliding groove 15, one end of the guide rod 16 can slide through the round hole 41, thereby playing a guiding and stabilizing role.

[0043] The upright column 9 can be arranged at the front side of the frame member 2 or at the rear side of the frame member 2 .

[0044] A construction method of a reusable and convenient combined steel structure retaining wall device comprises the following steps: S1. Drive 1m long round steel 3 into the inner walls of both sides of the tunnel 1, 5 on each side, and the round steel 3 needs to be exposed by 20-30cm. Put the outer square steel sleeve 4 on the round steel 3, and then put the inner square steel sleeve 5 on the other side of the outer square steel sleeve 4, and then put another outer square steel sleeve 4 on the other side of the previous inner square steel sleeve 5, and so on. Each row uses three outer square steel sleeves 4, two inner square steel sleeves 5, and two round steels 3. After the outer square steel sleeves 4 and the inner square steel sleeves 5 are assembled, the outer square steel sleeves 4 and the inner square steel sleeves 5 are defined by the cooperation of the countersunk pin rod 8 with the first pin hole 6 and the second pin hole 7, thereby completing the assembly of the skeleton components of the skeleton member 2; S2. Then, the column 9 is installed on the rear side of the frame member 2, and the pressure plate 17 is pulled out of the sliding groove 15. The pressure plate 17 and the sliding plate 14 cooperate to drive the insertion rod 13 to move out of the circular groove 11, and then the two insertion rods 13 are respectively inserted into the top inner wall and the bottom inner wall of the tunnel 1, and the column 9 is stably installed in the tunnel 1. Then, the fixing anchor 18 is inserted into the inner wall of the tunnel 1 through the guide hole 42 to ensure the stability of the insertion rod 13; S3, connect the column 9 with the adjacent outer square steel sleeve 4 through the connector 19, and respectively sleeve the first half sleeve 20 and the second half sleeve 21 on both sides of the outer square steel sleeve 4, and the second half sleeve 21 wraps the column 9 through the through groove 22, and tightly connects the first half sleeve 20 and the second half sleeve 21 through the countersunk screw 26 and the fastening nut 27 to complete the fixed installation of the outer square steel sleeve 4 and the column 9. In addition, the strip plate 23 is inserted into the strip groove 10 to ensure the stability of the column 9 in the through groove 22; S4. In addition, when installing the column 9, the corresponding connecting seat 33 is sleeved on the outer wall of the column 9 through the limiting plate 34; then the mounting base plate 29 is fixed to the bottom inner wall of the tunnel 1 by bolts, and the threaded rod 31 is extended into the sleeve 30 by the cooperation of the circular nut block 32 and the threaded rod 31, and the extension length of the threaded rod 31 is adjusted, and then the connecting seat 33 is fixed to the adjacent outer square steel sleeve 4 and the inner square steel sleeve 5 by the first fastening bolt 36 and the second fastening bolt 37, so as to support the outer square steel sleeve 4, the inner square steel sleeve 5 and the frame member 2; S5. Install the diamond hexagonal chain link fence 38 on the front side of the frame assembly through iron wire, install the filter cloth 39 on the front side of the diamond hexagonal chain link fence 38 through iron wire, and then use tailings to cement the filling material to construct the filling retaining wall. In addition, a water collecting trough 40 is opened at the bottom of the tunnel 1, and the bottom end of the column 9 extends into the water collecting trough 40, and the water collecting trough 40 is located on the rear side of the frame member 2. Therefore, the water filtered by the diamond hexagonal chain link fence 38 and the filter cloth 39 in the later stage is collected in the water collecting trough 40, and the collected water is uniformly discharged to the outside through a hose.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reusable and portable combined steel structure retaining wall device, characterized in that: It comprises a combined steel structure arranged in a lane (1), the combined steel structure comprising a frame assembly, a plurality of columns (9) and a connector (19), wherein the plurality of columns (9) are located at the rear side of the frame assembly; It also includes a plurality of support members (28), and the support members (28) are located at the rear side of the combined steel structure and are used to support the combined steel structure; It also includes a rhombus hexagonal chain link fence (38) and a filter cloth (39), wherein the rhombus hexagonal chain link fence (38) is located at the front side of the combined steel structure and is fixedly connected to the frame member (2) via iron wire, and the filter cloth (39) is located on a side of the rhombus hexagonal chain link fence (38) away from the frame member (2), and the filter cloth (39) is fixedly connected to the rhombus hexagonal chain link fence (38) via iron wire.

2. A reusable portable combined steel structure retaining wall device according to claim 1, characterized in that: The skeleton assembly is composed of a plurality of skeleton components (2), wherein the skeleton components (2) include two round steels (3), two inner square steel sleeves (5) and three outer square steel sleeves (4), wherein the ends of two round steels (3) that are away from each other respectively extend to the inner walls on both sides of the tunnel (1), and the two inner square steel sleeves (5) are respectively slidably sleeved between two adjacent outer square steel sleeves (4), and one end of the inner square steel sleeve (5) extends into the adjacent outer square steel sleeve (4), and the two round steels (3) The ends close to each other are respectively slidably extended into the adjacent outer square steel sleeves (4), the top sides of the outer square steel sleeve (4) are provided with first pin holes (6), the top sides of the inner square steel sleeve (5) are provided with second pin holes (7), and the second pin holes (7) are matched with the adjacent first pin holes (6), and the same countersunk pin rod (8) passes through the adjacent first pin holes (6) and the second pin holes (7), which are used to limit the adjacent outer square steel sleeves (4) and the inner square steel sleeves (5).

3. A reusable portable combined steel structure retaining wall device according to claim 2, characterized in that: The connector (19) comprises a first half sleeve (20) and a second half sleeve (21), wherein the first half sleeve (20) and the second half sleeve (21) are sleeved on the outer wall of one of the outer square steel sleeves (4), and the second half sleeve (21) is provided with a through groove (22) for sleeved on adjacent columns (9), and the top and bottom of the first half sleeve (20) are both fixed with two second connecting ears (25), and the top and bottom of the second half sleeve (21) are both fixed with two first connecting ears (24), and adjacent first connecting ears (24) are In cooperation with the second connecting ear (25), the same countersunk screw (26) passes through the adjacent first connecting ear (24) and the second connecting ear (25), and the outer wall thread sleeve of the countersunk screw (26) is provided with a fastening nut (27), and the fastening nut (27) is located on the side of the second connecting ear (25) away from the first connecting ear (24). The cooperation of the first connecting ear (24), the second connecting ear (25), the countersunk screw (26) and the fastening nut (27) is used to connect the column (9) to the adjacent outer square steel sleeve (4).

4. A reusable portable combined steel structure retaining wall device according to claim 3, characterized in that: The support member (28) comprises a mounting base plate (29), a sleeve (30), a threaded rod (31) and a connecting seat (33); the mounting base plate (29) is fixed to the bottom inner wall of the tunnel (1) by bolts; the bottom end of the sleeve (30) is rotated on the top of the mounting base plate (29) by a rotating shaft; the top end of the sleeve (30) is rotatably connected to a circular nut block (32); the bottom end thread of the threaded rod (31) penetrates the circular nut block (32) and extends into the sleeve (30); the rotation of the circular nut block (32) is used to control the extension length of the threaded rod (31); the top end of the threaded rod (31) is rotatably connected to one side of the connecting seat (33) by a rotating shaft; two limit plates are fixed to a side of the connecting seat (33) away from the threaded rod (31). (34), the two limit plates (34) are located above and below the adjacent connectors (19), and the two limit plates (34) are each provided with a through hole (35) for the column (9) to pass through. The cooperation between the limit plates (34) and the through hole (35) is used to further stabilize the column (9). A first fastening bolt (36) and a second fastening bolt (37) are passed through the connecting seat (33), and one end of the first fastening bolt (36) away from the connecting seat (33) is threadedly extended into the corresponding outer square steel sleeve (4), and one end of the second fastening bolt (37) away from the connecting seat (33) is threadedly extended into the corresponding inner square steel sleeve (5), so as to increase the stability of the connecting seat (33) and the outer square steel sleeve (4) and the inner square steel sleeve (5).

5. A reusable portable combined steel structure retaining wall device according to claim 4, characterized in that: The outer wall of the column (9) is provided with a plurality of anti-skid pattern segments, the anti-skid pattern segments are composed of a plurality of strip grooves (10), and the plurality of strip grooves (10) are arranged in a ring shape on the outer wall of the column (9), and a plurality of strip plates (23) are fixed to the inner wall of the through groove (22) away from the first half sleeve (20), and the strip plates (23) cooperate with the strip grooves (10) to increase the stability of the column (9) in the through groove (22).

6. A reusable portable combined steel structure retaining wall device according to claim 5, characterized in that: The length of the round steel (3) is 1 m, and the length of one end of the round steel (3) exposed in the tunnel (1) is 20-30 cm.

7. A reusable portable combined steel structure retaining wall device according to claim 6, characterized in that: The number of the skeleton components (2) is at least 5.

8. The reusable portable combined steel structure retaining wall device according to claim 7, characterized in that: The bottom inner wall of the tunnel (1) is provided with a water collecting trough (40), and the bottom end of the column (9) extends into the water collecting trough (40) for collecting water filtered by the filter cloth (39) when the retaining wall is constructed, so as to facilitate subsequent discharge.

9. The reusable portable combined steel structure retaining wall device according to claim 8, characterized in that: The top and bottom ends of the column (9) are both provided with circular grooves (11), and the two circular grooves (11) are both slidably connected with plug rods (13), and the ends of the two plug rods (13) close to each other are fixed with sliding plates (14), and the sliding plates (14) slide in the circular grooves (11), and one side of the column (9) is provided with two sliding bar holes (12), and the sliding bar holes (12) are connected to adjacent circular grooves (11), and one end of the sliding plate (14) extends into the adjacent sliding bar holes (12) and is slidably connected to the sliding bar holes (12), and the two sliding plates (14) are both provided with sliding grooves (15) A pressure plate (17) is slidably connected in each of the two sliding grooves (15), and a guide hole (42) is provided in each of the two pressure plates (17). A fixing anchor (18) penetrates each of the two guide holes (42) for fixing the two pressure plates (17) to the top inner wall and the bottom inner wall of the tunnel (1), respectively. A guide rod (16) is fixed to one side inner wall of each of the two sliding plates (14), and a circular hole (41) is provided in each of the two pressure plates (17), and the circular hole (41) penetrates the guide hole (42). One end of the guide rod (16) slides through the circular hole (41) for increasing the stability of the pressure plate (17).

10. A construction method using the reusable portable combined steel structure retaining wall device as claimed in claim 9, characterized in that: The following steps are involved: S1, assembling round steel and square steel sleeves: drive 1m long round steel (3) into the inner wall of both sides of the tunnel (1), 5 pieces on each side, leaving 20-30cm exposed; put the outer square steel sleeve (4) on the round steel (3), and then put the inner square steel sleeve (5) on the other side of the outer square steel sleeve (4), and so on; use three outer square steel sleeves (4), two inner square steel sleeves (5), and two round steels (3) in each row; after the sleeves are put together, the countersunk pin rod (8) is matched with the first pin hole (6) and the second pin hole (7) to complete the assembly of the skeleton component of the skeleton member (2); S2. Installation and fixation of the column: install the column (9) on the rear side of the frame member (2); pull out the pressure plate (17), and drive the insertion rod (13) to move out of the circular groove (11) through the pressure plate (17) and the sliding plate (14), and insert it into the top and bottom inner walls of the tunnel (1), and firmly install the column (9); insert the fixing anchor (18) through the guide hole (42) and into the inner wall of the tunnel (1), so as to ensure the stability of the insertion rod (13); S3, connecting the column with the outer square steel sleeve: connect the column (9) with the adjacent outer square steel sleeve (4) through the connector (19); respectively sleeve the first half sleeve (20) and the second half sleeve (21) on both sides of the outer square steel sleeve (4), and the second half sleeve (21) wraps the column (9) through the through groove (22); tightly connect the first half sleeve (20) and the second half sleeve (21) through the countersunk screw (26) and the fastening nut (27) to complete the fixed installation; insert the strip plate (23) into the strip groove (10) to ensure that the column (9) is stable in the through groove (22); S4, fixing the connection seat and the square steel sleeve: when installing the column (9), the connection seat (33) is mounted on the outer wall of the column (9) through the limit plate (34); the installation base plate (29) is fixed to the inner wall of the bottom of the tunnel (1) by bolts; the threaded rod (31) is extended into the sleeve (30) by the circular nut block (32) and the threaded rod (31) to adjust the length; the connection seat (33) is fixed to the adjacent outer square steel sleeve (4) and the inner square steel sleeve (5) by the first fastening bolt (36) and the second fastening bolt (37) to support the skeleton member (2); S5, chain link fence, filter cloth installation and water collection tank setting: the diamond hexagonal chain link fence (38) is installed on the front side of the frame component through iron wire, and the filter cloth (39) is installed on the front side of the diamond hexagonal chain link fence (38) through iron wire; the backfill retaining wall is constructed by cementing the backfill material with tailings; a water collection tank (40) is opened at the bottom of the tunnel (1), and the bottom end of the column (9) extends into the water collection tank (40), and the water collection tank (40) is located at the rear side of the frame component (2); the filtered water is collected in the water collection tank (40) and discharged to the outside through a hose.

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