CN115897659A - Retaining wall structure and construction method - Google Patents

Abstract

The invention provides a retaining wall structure and construction method, and relates to the technical field of subgrade side width filling and support. The outer side of the inner rod is screwed with a limit nut, and the inner side of the longitudinal bottom plate and the transverse bottom plate are fixedly connected in two places in a linear array. The guide rail, the internal sliding connection of the guide rail has an adjustment block, which solves the problem of the large amount of construction, long construction period and excessive impact on the surrounding environment when the support structure is in use, and the lack of effective support for the support structure during construction. The traction support structure makes the support structure easy to deform due to compression during compaction or use, which will affect the subsequent support effect. The inner rod drives the rotation of the roller B to realize the longitudinal bottom plate. The tightening work, and then tighten the limit nut to perform fast friction limit work on the inner rod, and then achieve the purpose of forming cooperation with the roller A to reinforce the device.

Description

A kind of retaining wall structure and construction method

technical field

The invention relates to the technical field of roadbed side width filling and support, in particular to a retaining wall structure and a construction method.

Background technique

With the increase of the traffic network density, there will be roadbed side width projects before the railway enters the station or on the highway section. The conventional side width roadbed structure has problems such as large area occupation, great impact on the existing roadbed, and long construction period, while the conventional retaining soil The wall support structure also has disadvantages such as the need for on-site pouring, large amount of masonry, difficult quality control, and long construction period.

However, when the support structure is in use, due to its large construction volume, long construction period and excessive impact on the surrounding environment, and the lack of effective traction support structure for the support structure during construction, the support structure is under compaction or It is easy to deform due to compression during use, which will affect the subsequent support effect.

Contents of the invention

The present invention provides the purpose and effect of a retaining wall structure and construction method, specifically comprising: a longitudinal base plate, a transverse base plate and a sleeve, the length of the bolted position between the transverse base plate and the column is 1/2 the width of the column, The longitudinal length is required to be greater than or equal to 2m, the thickness*height is 5mm*25cm, the longitudinal length of the longitudinal bottom plate is 2.2m, and the length of the bolted position with the horizontal bottom plate is 10cm, and there are installation holes A inside the longitudinal bottom plate and the horizontal bottom plate. Hole A is used to install M10 bolts, and the outer edge of the bolt hole is not less than 5cm. The inner part of the sleeve is connected with an inner rod which is longer than the sleeve. The outer side of the inner rod is fixedly connected with a roller B. The top of the rod is fixedly connected with an adjustment plate, and the outer side of the inner rod is screwed with a limit nut. The inner sides of the longitudinal base plate and the transverse base plate are fixedly connected with two guide rails in a linear array, and the inside of the guide rail is slidingly connected with an adjustment block.

Further, the column is an I-shaped steel structure with a size of 150*170*7mm, and a corner is provided on one side of the column, the length of the corner is 20mm, and the installation inclination ratio is 1:20, and the inside of the column And the outer side is provided with installation hole B, the installation hole B is used to install M10 bolts, and the outer edge of the installation hole B is not less than 2cm, the outer side of the column is fixedly connected with a suspension ring, the size of the suspension ring is 2cm in inner diameter, its installation The positions are the upper middle (1/5 height from the top), the middle and the lower middle (1/5 height from the bottom) on the outer side of the column.

Further, one side of the longitudinal corrugated steel is fixedly connected with a filter screen, and the interior of the longitudinal floor and the transverse floor is filled with open-graded crushed stones, geotextiles and conventional roadbed fillers, and the bottom end of the open-graded crushed stones is laid There are permeable fabrics, in which the filter screen is used to block the drainage holes, and the size of the filter screen is 15cm*15cm, and the grid size is 1cm*1cm. Fully wrapped open-graded crushed stone, followed by layered filling and compacted roadbed conventional filler.

Further, the inside of the column is installed with longitudinal corrugated steel through bolts, the total vertical height of the longitudinal corrugated steel is 25cm, wherein H1, H2, H3, H4, H5 are 5cm, 2.5cm, 10cm, 2.5cm and 10cm respectively , B is 150cm, and the longitudinal length of the longitudinal corrugated steel is 2.15m. There are drainage holes inside the longitudinal corrugated steel.

Further, one side of the adjustment block is fixedly connected with a hook, and one end of the adjustment block is fixedly connected with a limit rod, the limit rod is a screw structure, and the outside of the limit rod is limited by screwing a nut, the hook and the roller A and roller B are connected by a traction rope, and the traction rope is a steel wire rope.

Further, the inside of the longitudinal bottom plate is fixedly connected with a guide frame, and an extension frame is plugged into the inside of the guide frame, the extension frame is limited by a fixing bolt, and the top of the extension frame is fixedly connected with a pedestal, and the inside of the pedestal is arranged in a circular array with limited space. position hole, and the inside of the pedestal is connected with a sleeve, the outer side of the sleeve is installed with a roller A, and the outer side of the sleeve is fixedly connected with a limit plate, and the inside of the limit plate is provided with a through hole. Match the opening limit hole.

Further, a cover plate is installed on the top of the column. The longitudinal length of the cover plate is 2.2m, the width is 177mm, and the thickness is 5mm. The mounting frame is used to install the fence, and the steel components of the longitudinal base plate, transverse base plate, column, longitudinal corrugated steel, fixed structure and cover plate are all galvanized and anti-corrosion treated.

The invention discloses a construction method of a retaining wall structure, comprising the following steps:

1) Preparatory work: It is mainly divided into steel member preparation, foundation leveling or composite foundation construction, and existing roadbed excavation stage. Steel members need to be combined with design data to determine the height of the longitudinal bottom plate, transverse bottom plate and columns, combined with the engineering quantity , to determine the amount of steel component parts, and the design drawings should be combined with the construction stage of the side-wide foundation leveling or composite foundation. In the excavation stage, combined with the existing subgrade slope, the excavation heights are 0.25m and 0.5m steps respectively, so as to ensure the connection between the new side-width subgrade and the existing subgrade;

2) Assembling the longitudinal base plate and the transverse base plate: determine the length and position of different transverse base plates and longitudinal base plates according to the positioning, connect the horizontal base plate and the longitudinal base plate bolts according to the number, and then connect the column main body and the first layer of longitudinal corrugated steel , the stability of the column can be guaranteed after the structure is connected;

3) Then, when the transverse base plate needs to be tightened, the sleeve can be rotated and driven by inserting a tool into the through hole in the limit plate until the rotation of the roller A is used to pull the transverse base plate Synchronous tensioning operation, through the synchronous pulling and gathering operation of the horizontal bottom plates arranged on the front and rear sides of the longitudinal bottom plate, can realize the reinforcement of the horizontal bottom plate and ensure that the subsequent filling work will not cause deformation of the horizontal bottom plate;

4) After the sleeve is rotated to a suitable position, the limit plate can be limited by passing the bolt through the through hole in the limit plate and the pedestal, and the sleeve can be limited synchronously, while When it is necessary to tighten the longitudinal bottom plate, the inner rod can be driven to rotate by inserting the tool into the through hole provided in the adjustment plate, and the inner rod can drive the rotation of the roller B to realize the tension on the longitudinal bottom plate Tighten the work, and then tighten the limit nut to perform fast friction limit work on the inner rod;

5) Filling in the longitudinal bottom plate and the horizontal bottom plate: first place the filter screen, then fill in the graded gravel in turn, place a layer of permeable fabric, and the permeable fabric must fully wrap the graded gravel, and then in the outer direction Dump the conventional subgrade filler on the inside, level it manually, and then compact it mechanically, and ensure that the degree of compaction meets the design requirements;

6) Subgrade filler, longitudinal corrugated steel and reinforced body alternately layered: combined with the design drawing, each layer is arranged in alternate layers of subgrade filler, longitudinal corrugated steel and reinforced body according to the thickness of 0.5m, in which the longitudinal corrugated steel is at least as high as From the first floor of the filling position to the top, the top surface of each layer of filling height is basically located at the structural position of the reinforced body. When performing compaction and compaction, the position of the column is compacted inwards sequentially, and various tasks are alternated. Partitioning, saving construction time and maximizing the use of machinery and labor;

7) Installation of the top cover plate: when the top surface of the column is about to be filled, the cover plate is installed, and at the same time, a mounting frame for fence installation is fixedly connected to this position;

8) Installation of external promotional posters: Before the widening project is handed over to the operating unit or delivered to the operating unit, the construction unit or operating unit can combine the hanging rings reserved on the outer side to customize the publicity posters, and use buckles or steel wires to hang and other methods to fix them.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, by combining the design drawings, each layer is alternately layered with subgrade filler, longitudinal corrugated steel and layered reinforcement structure according to the thickness of 0.5m, wherein the longitudinal corrugated steel is at least one layer higher than the filling position until the top , the top surface of the filling height of each layer is basically located at the position of the layered reinforced structure. When compacting and compacting, the position of the vertical column is compacted inward in turn, and the work is carried out alternately and in different areas, saving the construction period and realizing Maximize the utilization of machinery and labor.

2. In the present invention, before the project is delivered to the operation unit or to the operation unit, the construction unit or the operation unit can combine the hanging ring reserved on the outside to customize the poster, and fix it by buckle ring or steel wire suspension for unit publicity Or lease, increase resource utilization and economic benefits, etc.

3. In the present invention, after the sleeve is rotated to a proper position, the limit plate can be limited by passing the bolt through the through hole set in the limit plate and the pedestal, and the sleeve can be simultaneously limited. position, and when the longitudinal bottom plate needs to be tightened, the inner rod can be driven to rotate by inserting the tool into the through hole opened in the adjustment plate, and the inner rod can drive the rotation of the roller B to achieve alignment. The tightening of the longitudinal bottom plate can be done by tightening the limit nut to quickly friction limit the inner rod, and then achieve the purpose of forming cooperation with the roller A to strengthen the device.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below.

The drawings in the following description only relate to some embodiments of the present invention, but do not limit the present invention.

In the attached picture:

Fig. 1 shows a schematic diagram of a front side view structure of a partial structural section of a retaining wall structure according to an embodiment of the present invention;

Fig. 2 shows a schematic diagram of the structure of the retaining wall structure according to an embodiment of the present invention, in a cut-away state of a part of the structure;

Fig. 3 shows a schematic diagram of an assembly structure of a retaining wall structure according to an embodiment of the present invention;

Fig. 4 shows a front view structural diagram of a retaining wall structure according to an embodiment of the present invention;

Fig. 5 shows a schematic diagram of the display structure from the guide frame to the roller B of the retaining wall structure according to the embodiment of the present invention;

Fig. 6 shows a schematic diagram of a longitudinal corrugated steel structure of a retaining wall structure according to an embodiment of the present invention;

Fig. 7 shows a schematic diagram of a screen structure of a retaining wall structure according to an embodiment of the present invention;

Fig. 8 shows an enlarged schematic diagram of the structure at A in Fig. 2 of the retaining wall structure according to an embodiment of the present invention.

Fig. 9 shows an enlarged schematic diagram of the structure at B in Fig. 2 of the retaining wall structure according to an embodiment of the present invention.

List of reference signs

1. Longitudinal bottom plate; 2. Transverse bottom plate; 3. Mounting hole A; 4. Column; 5. Mounting hole B; 6. Suspension ring; 7. Longitudinal corrugated steel; Rib body; 11. Filter screen; 12. Open graded crushed stone; 13. Geotextile; 14. Conventional subgrade filler; 15. Permeable fabric; 16. Cover plate; 17. Mounting frame; 18. Guide frame; 19. Fixing Bolt; 20, extension frame; 21, pedestal; 22, sleeve; 23, roller A; 24, limit plate; 25, inner rod; 26, roller B; 27, adjustment plate; 28, limit nut; 29, Guide rail; 30, adjusting block; 31, hook; 32, limit rod; 33, traction rope.

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

Detailed ways

Example:

As shown in accompanying drawing 1 to accompanying drawing 9:

The present invention provides a retaining wall structure and construction method, comprising: a longitudinal base plate 1, a transverse base plate 2 and a sleeve 22, the length of the bolted position between the transverse base plate 2 and the column 4 is half the width of the column 4, and The longitudinal length is required to be greater than or equal to 2m, the thickness*height is 5mm*25cm, the longitudinal length of the longitudinal bottom plate 1 is 2.2m, and the length of the bolted position with the horizontal bottom plate 2 is 10cm, and there are installation holes inside the longitudinal bottom plate 1 and the horizontal bottom plate 2 A3, the installation hole A3 is used to install M10 bolts, and the outer edge of the bolt hole is not less than 5cm, the inner rod 25 is connected to the inner rotation of the sleeve 22, the length of the inner rod 25 is longer than the sleeve 22, and the outer side of the inner rod 25 is fixed The roller B26 is connected, the top of the inner rod 25 is fixedly connected with the adjustment plate 27, and the outer side of the inner rod 25 is screwed with the limit nut 28, and the inner side of the longitudinal base plate 1 and the transverse base plate 2 are in a linear array and fixedly connected with two guide rails 29 , the inside of the guide rail 29 is slidingly connected with an adjustment block 30, one side of the adjustment block 30 is fixedly connected with a hook 31, and one end of the adjustment block 30 is fixedly connected with a limit rod 32, the limit rod 32 is a screw structure, and the limit rod The outer side of 32 is limited by screwing the nut, and the hook 31 is connected with the roller A23 and the roller B26 through the traction rope 33. The traction rope 33 is a steel wire rope. The unit can combine the hanging ring 6 reserved on the outside to make a promotional poster, and fix it by means of buckle or steel wire suspension, so as to promote or rent out the unit, so as to increase resource utilization and economic benefits.

Among them, the column 4 is a similar I-shaped steel structure with a size of 150*170*7mm, and one side of the column 4 is provided with a bend, the length of which is 20mm, and the installation inclination ratio is 1:20, and the inside of the column 4 and the outside are provided with installation holes B5, the installation holes B5 are used to install M10 bolts, and the outer edge of the installation holes B5 is not less than 2cm, the outside of the column 4 is fixedly connected with a suspension ring 6, and the size of the suspension ring 6 is 2cm in inner diameter , the installation position is 1/5 of the height from the top to the top of the outside of the column 4, and 1/5 of the height from the middle and bottom to the bottom. The inside of the column 4 is equipped with longitudinal corrugated steel 7 through bolts, and the vertical corrugated steel 7 is vertically The total height is 25cm, of which H1, H2, H3, H4, H5 are 5cm, 2.5cm, 10cm, 2.5cm and 10cm respectively, B is 150cm, and the longitudinal length of the longitudinal corrugated steel 7 is 2.15m, the interior of the longitudinal corrugated steel 7 A drain hole 8 is provided, and the size of the drain hole 8 is 3 cm in diameter, and the top point of the bottom is positioned at 1 cm away from the bottom surface line.

Among them, one side of the longitudinal corrugated steel 7 is fixedly connected with a filter screen 11, and the interior of the longitudinal bottom plate 1 and the transverse bottom plate 2 is filled with open-graded gravel 12, geotextile 13 and roadbed conventional filler 14, and the open-graded gravel The bottom end of 12 is laid with water-permeable fabric 15, wherein filter screen 11 is used for plugging drainage hole 8, and the size of filter screen 11 is 15cm*15cm, and grid size is 1cm*1cm, and the longitudinal filling of graded crushed stone 12 is filled. The shape of the building is trapezoidal. The permeable fabric 15 is used to fully wrap the graded crushed stone 12, and the subsequent layered filling and compaction of the subgrade conventional filler 14. The outer side of the column 4 is installed with a fixed structure 9, and the outer side of the fixed structure 9 is fixedly connected. There is a reinforced body 10, wherein the fixed structure 9 is connected to the column 4 by M10 bolts, the length*height*width of the fixed structure 9 is 2.2m*10cm*5mm, the reinforced body 10 is a bidirectional geogrid, and the geogrid is single-width The width is 2.0m, the length of the lower layer is the same as the lateral length of the horizontal bottom plate 2, the length of the upper layer is not less than 1.0m, the strength parameter of the geogrid is not less than 40kN/m, the elongation at break is ≤3%, and the grid size is not less than 1.0m. greater than 5cm*5cm, when the sleeve 22 is rotated to a suitable position, the limit plate 24 can be limited by passing the bolt through the through hole in the limit plate 24 and the pedestal 21, and the sleeve can be synchronized The cylinder 22 is used to limit the position, and when the longitudinal bottom plate 1 needs to be tightened, the inner rod 25 can be driven to rotate by inserting the tool into the through hole opened in the adjustment plate 27, and the inner rod 25 can drive the inner rod 25 to rotate. Rotate the roller B26 to realize the tightening work on the longitudinal bottom plate 1, and then tighten the limit nut 28 to quickly frictionally limit the inner rod 25, and then achieve cooperation with the roller A23 to The purpose of strengthening the device.

Wherein, a cover plate 16 is installed on the top of the column 4, the longitudinal length of the cover plate 16 is 2.2m, the width is 177mm, and the thickness is 5mm. Mounting frame 17, the mounting frame 17 is used to install the fence, and the longitudinal bottom plate 1, the horizontal bottom plate 2, the column 4, the longitudinal corrugated steel 7, the fixed structure 9 and the steel components of the cover plate 16 are all galvanized and anti-corrosion treated, and the longitudinal bottom plate 1 The inside of the guide frame 18 is fixedly connected with a guide frame 18, and the inside of the guide frame 18 is plugged with an extension frame 20. The extension frame 20 is limited by the fixing bolt 19, and the top of the extension frame 20 is fixedly connected with a pedestal 21, and the interior of the pedestal 21 is arranged in a circular array. There are limited holes, and the inside of the pedestal 21 is rotatably connected with a sleeve 22, the outside of the sleeve 22 is equipped with a roller A23, and the outside of the sleeve 22 is fixedly connected with a limit plate 24, and the inside of the limit plate 24 is provided with a through hole. The through hole matches the limit hole provided in the pedestal 21. In the present invention, by combining the design drawing, each layer is alternately layered with subgrade filler, longitudinal corrugated steel and layered reinforcement structure according to the thickness of 0.5m. The longitudinal corrugated steel is at least one layer higher than the filling position, to the top; the top surface of each layer of filling height is basically located at the position of the layered reinforcement structure; when performing compaction and compaction, it is compacted inward from the position of the column 4, And each work is carried out alternately and dividedly, saving the construction period and maximizing the utilization of machinery and labor.

The invention discloses a construction method of a retaining wall structure, comprising the following steps:

1) Preparatory work: It is mainly divided into steel member preparation, side width foundation leveling or composite foundation construction, and existing roadbed excavation stage. Steel members need to combine design data to determine the height of longitudinal floor 1, transverse floor 2 and column 4. Combined with the project quantity, determine the quantity of steel component parts. The construction stage of the side-wide foundation leveling or composite foundation needs to be combined with the design drawings. In the subgrade excavation stage, combined with the existing subgrade slope, the excavation heights are 0.25m and 0.5m steps respectively, so as to ensure the connection between the new side-width subgrade and the existing subgrade;

2) Assembly of the longitudinal base plate 1 and the transverse base plate 2: determine the length and position of the different transverse base plates 2 and the longitudinal base plate 1 according to the positioning, and connect the bolts of the horizontal base plate 2 and the longitudinal base plate 1 according to the numbering, and then carry out the column 4 main body and the second The connection of a layer of longitudinal corrugated steel 7 can ensure the stability of the column 4 after the structure is connected;

3) Then, when the transverse bottom plate 2 needs to be tightened, the sleeve 22 can be rotated and driven by inserting a tool into the through hole in the limit plate 24 until the rotation of the roller A23 is achieved by the traction rope 33. The horizontal floor 2 is tightened synchronously, and the horizontal floor 2 can be strengthened by synchronous pulling and gathering operation of the horizontal floor 2 arranged on the front and rear sides of the longitudinal floor 1 and ensures that the subsequent filling work will not cause the horizontal floor 2 to occur. deformation;

4) After the sleeve 22 is rotated to a proper position, the limit plate 24 can be limited by passing the bolt through the through hole in the limit plate 24 and the pedestal 21, and the sleeve 22 can be synchronized. position, and when the longitudinal bottom plate 1 needs to be tightened, the inner rod 25 can be driven to rotate by inserting the tool into the through hole provided in the adjustment plate 27, and the inner rod 25 can drive the roller The rotation of B26 is to realize the tightening work on the longitudinal bottom plate 1, and then tighten the stop nut 28 to perform fast friction limit work on the inner rod 25;

5) Filling in the longitudinal bottom plate 1 and the horizontal bottom plate 2: first place the filter screen 11, then fill in the graded gravel 12 in turn, and place a layer of permeable fabric 15, and the permeable fabric 15 needs to be fully wrapped in the graded gravel Stone 12, and then dump the subgrade conventional filler 14 from the outside to the inside, manually level it first, and then use machinery to compact it, and ensure that the degree of compaction meets the design requirements;

6) Subgrade filler, longitudinal corrugated steel 7 and reinforced body 10 are arranged alternately in layers: according to the design drawing, each layer is arranged in alternate layers of roadbed filler, longitudinal corrugated steel 7 and reinforced body 10 according to the thickness of 0.5m, wherein the longitudinal The corrugated steel 7 is at least one layer higher than the filling position until the top, and the top surface of each layer of filling height is basically located at the structural position of the reinforced body 10. When performing compaction and compaction, the position of the column 4 is compacted inwards sequentially , and each work is carried out alternately and dividedly, saving the construction period and maximizing the utilization of machinery and labor;

7), top cover plate 16 installation: when about to be filled to the top surface of column 4, carry out the installation to cover plate 16, simultaneously this position is fixedly connected with the installation frame 17 that is installed for fence;

8) Installation of external promotional posters: Before the widening project is delivered to the operating unit or to the operating unit, the construction unit or operating unit can combine the suspension ring 6 reserved on the outer side to customize the promotional posters, and fix them by buckle or steel wire suspension.

When in use: firstly prepare the steel members of appropriate specifications, and help the wide foundation leveling or composite foundation construction, the excavation stage of the existing roadbed, the steel members need to combine the design data to determine the height of the longitudinal bottom plate 1, the transverse bottom plate 2 and the column 4 , combined with the engineering quantity, determine the quantity of steel component parts, and the design drawings should be combined with the construction stage of the side-wide foundation leveling or composite foundation. In the excavation stage of the existing subgrade, combined with the side slope of the existing subgrade, the excavation heights are 0.25m and 0.5m steps respectively, so as to ensure the connection between the new side-width subgrade and the existing subgrade;

Then determine the lengths and positions of different transverse base plates 2 and longitudinal base plates 1 according to the positioning, connect the horizontal base plate 2 and the longitudinal base plate 1 bolts in combination with the numbers, and then carry out the connection between the main body of the column 4 and the first layer of longitudinal corrugated steel 7, After the structure is connected, the stability of the column 4 can be guaranteed;

Then by connecting one end of the traction rope 33 with the hook 31 that is arranged on one end of the adjustment block 30, and synchronously connecting the other end of the two traction ropes 33 with the roller A23 and the roller A23 that are arranged on the outside of the sleeve 22 and the inner rod 25 respectively. The outer side of the roller B26 is installed, and when filling, the height of the extension frame 20 plugged into the guide frame 18 can be manually adjusted according to the height of the filler, and after the height adjustment of the extension frame 20 is completed, the fixed The bolt 19 is screwed to the outside of the guide frame 18 to limit the extension frame 20;

Then when the transverse base plate 2 needs to be tensioned, the sleeve 22 can be rotated and driven through the tool inserted into the through hole in the limit plate 24, until the rotation of the roller A23 is used to pull the transverse base plate 33 2. Perform synchronous tensioning operations. By synchronous pulling and gathering operations on the transverse base plates 2 arranged on the front and rear sides of the longitudinal base plate 1, the reinforcement of the transverse base plate 2 can be realized and the subsequent filling work will not cause deformation of the transverse base plate 2, and then achieve the purpose of reinforcement;

And when the sleeve 22 is rotated to a suitable position, the limit plate 24 can be limited by passing the bolt through the through hole provided in the limit plate 24 and the pedestal 21, and the sleeve 22 can be limited synchronously. position, and when the longitudinal bottom plate 1 needs to be tightened, the inner rod 25 can be driven to rotate by inserting the tool into the through hole provided in the adjustment plate 27, and the inner rod 25 can drive the roller B26 Rotate to realize the tightening work on the longitudinal bottom plate 1, and then tighten the limit nut 28 to perform fast friction limit work on the inner rod 25, and then achieve the cooperation with the roller A23 to strengthen the device Purpose;

Then, install the filter screen 11 and the drainage hole 8 provided in the longitudinal corrugated steel 7, then fill in the graded gravel 12 in sequence, and then place a layer of permeable fabric 15, and the permeable fabric 15 needs to be fully wrapped and graded Gravel 12, and then dump the subgrade conventional filler 14 from the outside to the inside, after the filling is completed, it will be leveled manually, and then compacted by machinery to ensure that the compactness meets the design requirements;

Then, by combining the design drawings, each layer is alternately layered with subgrade filler, longitudinal corrugated steel 7 and reinforced body 10 according to the thickness of 0.5m, wherein the longitudinal corrugated steel 7 is at least one layer higher than the filling position until the top. The top surface of the filling height is basically located at the structural position of the reinforced body 10. During the compaction and compaction, the positions of the columns 4 are compacted inwards sequentially, and various tasks are carried out alternately and in different areas, saving the construction period and realizing mechanical and manual construction. maximize utilization;

When it is about to be filled to the top surface of the column 4, the installation of the cover plate 16 is carried out, and the installation frame 17 for the installation of the fence is fixedly connected at this position, which further strengthens the overall coverage of the device;

And before the delivery of the widening project to the operating unit or before the delivery of the operating unit, the construction unit or the operating unit can combine the hanging ring 6 reserved on the outside to customize a poster, and use buckles or steel wires to hang and fix it for unit publicity or rental, increasing Resource utilization and economic benefits, etc.

Claims (9)

1. A retaining wall structure, characterized in that it comprises: a longitudinal base plate (1) and a transverse base plate (2) and a sleeve (22), the bolted position length of the transverse base plate (2) and the column (4) One-half the width of the column (4), the inside of the longitudinal bottom plate (1) and the transverse bottom plate (2) is provided with a mounting hole A (3), the mounting hole A (3) is used to install M10 bolts, the sleeve The inside of (22) is rotationally connected with inner rod (25), and the length of inner rod (25) is greater than sleeve (22), and the outside of inner rod (25) is fixedly connected with roller B (26), and the inner rod (25) The top end is fixedly connected with an adjustment plate (27), and the outer side of the inner rod (25) is screwed with a limit nut (28), and the inner sides of the longitudinal bottom plate (1) and the transverse bottom plate (2) are in a linear array and fixedly connected with two guide rails (29), the inside of guide rail (29) is slidably connected with adjusting block (30). 2. A kind of retaining wall structure as claimed in claim 1, characterized in that: the column (4) is a similar I-shaped steel structure, and one side of the column (4) is provided with a bend, and the column (4) Both the inside and the outside are provided with installation holes B (5), and the installation holes B (5) are used for installing M10 bolts, and the outside of the column (4) is fixedly connected with a suspension ring (6). 3. A retaining wall structure as claimed in claim 1, characterized in that: the inside of the column (4) is equipped with longitudinal corrugated steel (7) through bolts, and the interior of the longitudinal corrugated steel (7) is provided with drainage holes (8). 4. A kind of retaining wall structure as claimed in claim 1, is characterized in that: the outer side of described column (4) is equipped with fixed structure (9), and the outer side of fixed structure (9) is fixedly connected with reinforcing body (10 ), wherein the fixed structure (9) is connected with the column (4) by M10 bolts, and the reinforced body (10) is a two-way geogrid. 5. A retaining wall structure as claimed in claim 3, characterized in that: one side of the longitudinal corrugated steel (7) is fixedly connected with a filter screen (11), and the longitudinal bottom plate (1) and the transverse bottom plate (2 ) is filled with open graded crushed stone (12), geotextile (13) and roadbed conventional filler (14), and the bottom end of open graded crushed stone (12) is laid with permeable fabric (15), wherein the filter screen (11) is used for plugging drain hole (8). 6. A kind of retaining wall structure as claimed in claim 1, characterized in that: a cover plate (16) is installed on the top of the column (4), connected with the column (4) by M10 bolts, and the cover plate (16) ) is fixedly connected with two mounting brackets (17) in a linear array on the top surface, and the mounting bracket (17) is used to install the fence. 7. A kind of retaining wall structure as claimed in claim 1, is characterized in that: the inside of described longitudinal base plate (1) is fixedly connected with guide frame (18), and the inside of guide frame (18) is plugged with extension frame ( 20), the extension frame (20) is limited by the fixing bolt (19), the top of the extension frame (20) is fixedly connected with a pedestal (21), and the inside of the pedestal (21) is provided with a limit hole in a circular array, and the pedestal (21 ) is connected with a sleeve (22) for rotation, the outer side of the sleeve (22) is equipped with a roller A (23), and the outer side of the sleeve (22) is fixedly connected with a limiting plate (24), and the limiting plate (24) The inside of the pedestal is provided with a through hole, which matches with the limit hole provided in the pedestal (21). 8. A retaining wall structure according to claim 1, characterized in that: one side of the adjustment block (30) is fixedly connected with a hook (31), and one end of the adjustment block (30) is fixedly connected with a limit rod (32), the limit rod (32) is a screw structure, and the outside of the limit rod (32) is limited by screwing the nut, and the hook (31) passes between the roller A (23) and the roller B (26). Traction rope (33) connects, and traction rope (33) is steel wire rope. 9. The construction method of a retaining wall structure as claimed in claim 1-8, characterized in that, comprising the following steps: 1) Preparatory work: It is mainly divided into steel member preparation, side width foundation leveling or composite foundation construction, and existing roadbed excavation stage. Steel members need to be combined with design data to determine the longitudinal floor (1) and transverse floor (2) and columns (4) The height, combined with the engineering quantity, determines the amount of steel component parts. The construction stage of the side-wide foundation leveling or composite foundation needs to be combined with the design drawings. Before the construction of the structure, the side-width foundation leveling or composite foundation construction should be completed to ensure that the upper part is 4% Outward-inclining slopes, in the excavation stage of the existing subgrade, combined with the side slope of the existing subgrade, the excavation heights are 0.25m and 0.5m steps, respectively, to ensure the connection between the new side-width subgrade and the existing subgrade; 2) Assembling the longitudinal base plate (1) and the transverse base plate (2): determine the length and position of the different transverse base plates (2) and longitudinal base plates (1) according to the positioning, and combine the numbers to carry out the horizontal base plate (2) and the longitudinal base plate (1) ) bolts, and then carry out the connection of the column (4) main body and the first layer of longitudinal corrugated steel (7), the stability of the column (4) can be guaranteed after the structural connection; 3), then when the transverse base plate (2) needs to be tensioned, the sleeve (22) can be rotated and driven through the tool inserted into the through hole in the limit plate (24) until the roller A (23 ) is rotated to use the traction rope (33) to perform a synchronous tensioning operation on the horizontal bottom plate (2), and through the synchronous pulling and gathering operation of the horizontal bottom plate (2) arranged on the front and rear sides of the longitudinal bottom plate (1), it can be realized. Reinforcement of the transverse bottom plate (2) and ensuring that subsequent filling work will not cause deformation of the transverse bottom plate (2); 4) After the sleeve (22) is rotated to a proper position, the limit plate (24) can be limited by passing the bolt through the through hole set in the limit plate (24) and the pedestal (21) , and synchronously limit the sleeve (22), and when the longitudinal bottom plate (1) needs to be tightened, it can be driven by inserting the tool into the through hole opened in the adjustment plate (27). The inner rod (25) rotates, and the rotation of the roller B (26) is driven by the inner rod (25) to realize the tightening of the longitudinal bottom plate (1), and then the stop nut (28) is tightened to Carry out fast friction limit work to inner rod (25); 5), filling in the longitudinal bottom plate (1) and the horizontal bottom plate (2): first place the filter screen (11), then fill in the graded crushed stones (12) sequentially, place a layer of permeable fabric (15), and The water-permeable fabric (15) needs to fully wrap the graded gravel (12), and then dump the conventional subgrade filler (14) from the outside to the inside, level it manually, and then compact it mechanically to ensure that the degree of compaction meets the design requirements. Require; 6), roadbed filler, longitudinal corrugated steel (7) and reinforced body (10) are alternately layered: according to the design drawing, each layer is carried out with a thickness of 0.5m for roadbed filler, longitudinal corrugated steel (7) and reinforced body (10 ) are alternately arranged in layers, wherein the longitudinal corrugated steel (7) is at least one layer higher than the filling position to the top, and the top surface of each layer of filling height is basically located at the structural position of the reinforced body (10). During compaction, the position of the column (4) is compacted inward sequentially, and various tasks are carried out alternately and in different areas, saving the construction period and maximizing the use of machinery and labor; 7), top cover (16) installation: when the top surface of the column (4) is about to be filled, the installation of the cover (16) is carried out, and the installation frame (17) for fence installation is fixedly connected at this position ); 8) Installation of external promotional posters: Before the widening project is delivered to the operating unit or delivered to the operating unit, the construction unit or operating unit can combine the hanging ring (6) reserved on the outer side to customize the promotional posters, and use buckles or steel wires to hang and other methods to fix them .

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