CN213417857U - Divide step monolithic placement formula curb retaining wall - Google Patents

Divide step monolithic placement formula curb retaining wall Download PDF

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Publication number
CN213417857U
CN213417857U CN202022018413.6U CN202022018413U CN213417857U CN 213417857 U CN213417857 U CN 213417857U CN 202022018413 U CN202022018413 U CN 202022018413U CN 213417857 U CN213417857 U CN 213417857U
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China
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retaining wall
road shoulder
backfill
integrally
wall
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CN202022018413.6U
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李政
李娟�
周姜
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Chongqing Municipal Design And Research Institute Co ltd
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Chongqing Municipal Design And Research Institute Co ltd
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Abstract

The utility model discloses a divide step monolithic placement formula curb retaining wall mainly includes concrete wall, drain pipe, gutter, barricade toe, anchor draw reinforcing bar, subgrade soil backfill, piece stone inverted filter and clay water barrier. In order to solve the problems that the excavation amount is too large, slope toe excavation is easy to cause slope instability, the soil body backfill side pressure is too large and the like caused by building a traditional masonry road shoulder retaining wall at a current situation rock slope, the step-by-step integrally-cast road shoulder retaining wall adopts step-by-step groove excavation casting, anchor steel bars are used for connecting and fixing the retaining wall and bedrock, anti-overturning toes are arranged at the bottom of the wall, and the wall body, a drainage side ditch and the toes are integrally cast to form an integrated structure. The invention adopts a method of cutting grooves and excavating along the weathering line in the existing rock stratum in steps, so as to reduce the damage to the existing rock slope as much as possible; the toe of the wall bottom and the drainage side ditch are poured into a whole and provided with the anchor steel bar, so that the anti-sliding and anti-overturning capabilities of the retaining wall are improved.

Description

Divide step monolithic placement formula curb retaining wall
Technical Field
The utility model relates to a road construction, building site and current situation side slope support field, concretely relates to divide step monolithic placement formula curb retaining wall.
Background
The road shoulder type retaining wall is mainly applied to road and municipal road filling side slope sections and is widely applied to site leveling, side slope treatment, foundation pit support of industrial and civil buildings and the like.
The common road shoulder type retaining wall is characterized in that firstly, wall back rock soil bodies are temporarily put on a slope and excavated, the retaining wall is backfilled and compacted after being built, and the upper part of the backfilled soil is used as a stable building site for building roads or building structures; the road shoulder type retaining wall is mainly used for bearing the lateral pressure of rock and soil mass behind the wall and plays a role in reinforcing and supporting the slope under the current situation. The existing commonly used road shoulder type retaining wall is mainly divided into a general masonry retaining wall and a pile slab retaining wall, the general masonry retaining wall has wider wall bottom, the temporary excavation of the retaining wall has larger damage to the current side slope, the backfill amount of the excavated earthwork is large, and the soil pressure borne by the retaining wall is also larger; the pile plate retaining wall is obviously influenced by the height of the cantilever end, the displacement of the pile top is difficult to control when the cantilever end is higher, and the construction cost of the pile plate retaining wall is higher. In order to solve the problems, a retaining wall structure needs to be provided, the requirements of limited land use, small environmental damage and investment saving of municipal roads, highway subgrade, side slope support and other building fields are met, and the structural form conforms to the characteristics of convenience in construction, strong durability, safety and reliability.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a divide step integral casting formula curb retaining wall, specific solution traditional masonry barricade excavate temporarily great, excavation back earthwork backfill volume is many, the also great problem of the soil pressure that receives behind the barricade of destruction of current situation side slope. The method has the greatest characteristic that the integrity of the rock mass of the undisturbed side slope is fully reserved; the concrete wall body, the toes at the bottom of the wall and the drainage side ditch are integrally cast, so that the anti-sliding and anti-overturning capabilities of the retaining wall are improved; and the wall body and the bedrock are connected into a whole through the anchoring and pulling steel bars.
In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:
the step-by-step integrally-poured road shoulder retaining wall is characterized by comprising a concrete wall body, a drain pipe, a drainage side ditch, retaining wall toes, pre-buried permeable pipes, anchoring and pulling steel bars, roadbed soil backfill, a stone inverted filter layer and a clay water-resisting layer;
the concrete wall body is a main body part of the road shoulder retaining wall and is mainly used for bearing the lateral soil pressure behind the wall;
the drainage pipe leads underground water behind the retaining wall into the drainage side ditch so as to reduce the water pressure behind the wall;
the anchoring steel bar anchors the concrete wall and the foundation rock into a whole so as to improve the anti-sliding and anti-overturning capacity of the retaining wall;
the concrete wall, the retaining wall toes and the drainage side ditch form an integrated structure.
The concrete wall is excavated along the existing weathering line in the rock stratum by stage carving grooves.
When the concrete wall is excavated in steps, the permeable pipes are embedded along the rock surface notches.
The concrete wall body integrally pours the anchor steel bars to connect the retaining wall and the bedrock into a whole.
The toe of the retaining wall and the drainage side ditch are integrally cast, and a steel bar net piece for casting concrete is arranged in the drainage side ditch.
The drainage pipes are arranged in a quincuncial shape from top to bottom, the longitudinal distance between the drainage pipes is 5-10 m, the uppermost drainage pipe is higher than a clay water-resisting layer, and the lowermost drainage pipe is higher than a backfill pavement by not less than 0.3 m.
A0.5 m thick stone inverted filter layer is arranged below the roadbed soil backfill, the end part of the drain pipe is wrapped by the stone inverted filter layer, and a clay water-resisting layer is arranged below the stone inverted filter layer.
The backfill pavement line is positioned at the top of the road shoulder retaining wall and is parallel to the horizontal plane. The top of the inner side of the concrete wall body is sequentially connected with a backfilling pavement line, and the top of the outer side of the drainage side ditch is sequentially connected with a ground line backfilled by the excavation of the retaining wall.
Compared with the prior art, the invention has the advantages that the problem of limited land use of municipal roads, highway subgrades, side slope supports and other building sites can be solved, the aims of small environmental damage and investment saving are realized by fully retaining the integrity of rock masses of undisturbed side slopes, and the structural form of the step-by-step integrally-poured road shoulder retaining wall conforms to the characteristics of convenience in construction, strong durability, safety and reliability.
Drawings
For a more complete understanding of the present invention, and to practice the same, preferred embodiments thereof will now be described with reference to the accompanying drawings, in which:
fig. 1 is a sectional structure view of the present invention.
Fig. 2 is the utility model discloses a drainage ditch position arrangement of reinforcement map.
In the figure: 1-concrete wall; 2, a water drainage pipe; 3, draining the side ditch; 4-retaining wall toe; 5, embedding a permeable pipe; 6, anchoring and pulling the steel bars; 7-backfilling road surface lines; 8-backfilling roadbed soil; 9-a rubble inverted filter layer; 10-clay water barrier; 11-the present ground line; 12-weathering lines in rock formations; 13-reinforcing mesh.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
The utility model aims at providing a divide step monoblock casting formula curb retaining wall to the reduction is to the excavation of current situation side slope, thereby realizes the purpose little, the saving investment of environmental destruction through the rock mass integrality that fully remains the original state side slope.
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b): a step-by-step integrally-poured road shoulder retaining wall is shown by combining a figure 1 and a figure 2 and comprises a concrete wall body 1, a drain pipe 2, a drainage side ditch 3, retaining wall toes 4, pre-buried permeable pipes 5, anchoring and pulling steel bars 6, roadbed soil backfilling 8, a rubble inverted filter layer 9 and a clay water-resisting layer 10; the concrete wall body 1 is a main body part of the road shoulder retaining wall and is mainly used for bearing the lateral soil pressure behind the wall, and the wall body material can be selected from single or multiple materials such as rubbles, bars, graded broken stones and the like to be integrally cast or built; the drain pipe 2 leads underground water behind the retaining wall into the drain side ditch 3 to reduce the water pressure behind the wall, and the drain pipe 2 can be made of PVC pipes, corrugated pipes, blind pipes and other materials; the anchoring steel bars 6 anchor the concrete wall 1 and the foundation rock into a whole so as to improve the anti-sliding and anti-overturning capabilities of the retaining wall, and the anchoring steel bars 6 can be made of single or multiple HRB400 steel bars with the diameter not less than 20 mm; the concrete wall body 1, the retaining wall toes 4 and the drainage side ditch 3 are integrally cast, so that the anti-sliding and anti-overturning capabilities of the retaining wall are improved, and the wall body and the bedrock are connected into a whole through the anchor steel bars 6.
The concrete wall body 1 is excavated along the existing weathering line 12 in the rock stratum by step carving grooves; when the concrete wall body 1 is excavated in steps, the permeable pipes 5 are embedded along the rock surface notches; the concrete wall body 1 integrally pours the anchor steel bar 6 to connect the retaining wall and the bedrock into a whole; the toe 4 of the retaining wall and the gutter 3 are integrally cast, and a steel bar net 13 for casting concrete is arranged in the gutter 3; the water discharge pipes 2 are arranged in a plurality of rows from top to bottom and are arranged in a quincunx shape, the longitudinal distance between the water discharge pipes 2 is 5 m-10 m, the uppermost water discharge pipe 2 is higher than the clay water-resisting layer 10, and the lowermost water discharge pipe 2 is higher than the backfill pavement by not less than 0.3 m.
A 0.5m thick stone inverted filter layer 9 is arranged below the roadbed soil backfill 8, the end part of the drain pipe 2 is wrapped by the stone inverted filter layer 9, and a clay water-resisting layer 10 is arranged below the stone inverted filter layer 9; the backfill road surface line 7 is positioned at the top of the road shoulder retaining wall and is parallel to the horizontal plane; the top of the inner side of the concrete wall body 1 is sequentially connected with a backfill pavement line 7, and the top of the outer side of the drainage side ditch 3 is sequentially connected with a ground line for excavation and backfilling of the retaining wall; the outer vertical surface of the concrete wall body 1 can be vertical to a ground line, and can be properly adjusted to be 1: n under the condition of permission of a red land line, wherein the value range of n is 0-0.3, so that the anti-overturning capacity of the retaining wall is further improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a divide step monolithic casting formula curb retaining wall which characterized in that:
the water-retaining wall comprises a concrete wall body (1), a drain pipe (2), a drain side ditch (3), retaining wall toes (4), pre-buried permeable pipes (5), anchor-pulling steel bars (6), roadbed soil backfilling (8), a stone inverted filter layer (9) and a clay water-resisting layer (10);
the concrete wall body (1) is a main body part of the road shoulder retaining wall;
the drain pipe (2) leads underground water behind the retaining wall into the drain side ditch (3);
the anchoring steel bars (6) anchor the concrete wall (1) and the foundation rock into a whole;
the concrete wall body (1), the retaining wall toes (4) and the drainage side ditch (3) form an integrated structure.
2. The step-by-step integrally-cast road shoulder retaining wall according to claim 1, characterized in that: the concrete wall body (1) is excavated along the existing weathering line (12) in the rock stratum by step carving grooves.
3. The step-by-step integrally cast road shoulder retaining wall according to claim 2, characterized in that: when the concrete wall body (1) is excavated along the existing weathering line (12) in the rock stratum in a step-by-step notch manner, the water permeable pipe (5) is embedded along the rock surface notch manner, and the embedded water permeable pipe (5) is connected with the drain pipe (2) in the horizontal direction by a three-way pipe.
4. The step-by-step integrally cast road shoulder retaining wall according to claim 3, characterized in that: the water discharge pipes (2) are arranged in a multi-row quincunx form from top to bottom, the longitudinal distance between the water discharge pipes (2) is 5 m-10 m, the uppermost water discharge pipe (2) is higher than the clay water-resisting layer (10), and the lowermost water discharge pipe (2) is higher than a backfill pavement by not less than 0.3 m.
5. The step-by-step integrally-cast road shoulder retaining wall according to claim 1, characterized in that: the concrete wall body (1) is integrally cast with the anchor steel bars (6) to connect the retaining wall and the bedrock into a whole.
6. The step-by-step integrally cast road shoulder retaining wall according to claim 5, characterized in that: anchor bar (6) be "L" type and arrange, the vertical length of buckling of reinforcing bar is not less than 1m, anchor bar (6) vertical interval is 2 m.
7. The step-by-step integrally-cast road shoulder retaining wall according to claim 1, characterized in that: the toe (4) of the retaining wall and the drainage side ditch (3) are integrally cast, and a steel bar net piece (13) used for casting concrete is arranged in the drainage side ditch (3).
8. The step-by-step integrally-cast road shoulder retaining wall according to claim 1, characterized in that: the rubble inverted filter layer (9) with the thickness of 0.5m is arranged below the roadbed soil backfill (8), the end part of the drain pipe (2) is wrapped by the rubble inverted filter layer (9), and the clay waterproof layer (10) is arranged below the rubble inverted filter layer (9); the backfill pavement is arranged behind the roadbed soil backfill (8), and a backfill pavement line (7) is positioned at the top of the road shoulder retaining wall and is parallel to the horizontal plane.
9. The step-by-step integrally cast road shoulder retaining wall according to claim 8, characterized in that: the inner side top of the concrete wall body (1) is connected with the backfill road surface line (7) in sequence, and the outer side top of the drainage side ditch (3) is connected with the ground line backfilled by the retaining wall excavation in sequence.
CN202022018413.6U 2020-09-15 2020-09-15 Divide step monolithic placement formula curb retaining wall Active CN213417857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022018413.6U CN213417857U (en) 2020-09-15 2020-09-15 Divide step monolithic placement formula curb retaining wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022018413.6U CN213417857U (en) 2020-09-15 2020-09-15 Divide step monolithic placement formula curb retaining wall

Publications (1)

Publication Number Publication Date
CN213417857U true CN213417857U (en) 2021-06-11

Family

ID=76261936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022018413.6U Active CN213417857U (en) 2020-09-15 2020-09-15 Divide step monolithic placement formula curb retaining wall

Country Status (1)

Country Link
CN (1) CN213417857U (en)

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