CN209053120U - Bolt Bolted angle connection assembled counterfort retaining wall - Google Patents

Abstract

The utility model discloses an assembled buttress retaining wall connected with bolt angle steel, which comprises a plurality of retaining wall units arranged side by side. The wall is arranged on the bottom plate perpendicular to the bottom plate, the buttress is perpendicular to the vertical plate, and the supporting surface of the buttress is in contact with the back of the vertical plate; Angle steel and bolt connection are used between them. The bottom plate, the vertical plate and the buttress of the utility model are reinforced concrete structures, which can be assembled and constructed on site, and have the advantages of reliable quality of component units, simple on-site construction and high construction efficiency; The adjacent unit lap joint structure ensures the overall settlement of the adjacent bottom plate and strengthens the anti-overturning stability of the adjacent vertical plate.

Description

Bolted Angle Steel Connection Prefabricated Buttress Retaining Wall

technical field

The utility model relates to a retaining wall in civil engineering, in particular to an assembled buttress retaining wall connected by bolt angle steel.

Background technique

Retaining wall is one of the main engineering measures to ensure the stability of slope soil. It is widely used in railway, highway, municipal, water conservancy, mine, housing construction and geological disaster treatment projects. At present, there are many structural forms of retaining walls, such as gravity retaining wall, cantilever retaining wall, arm retaining wall, etc. Among them, the gravity retaining wall is the most widely used, which has the advantages of simple structure, convenient material selection and construction. It has the advantages of simple process, etc., but the labor intensity of gravity retaining workers is high, the degree of mechanization is low, it is greatly restricted by the materials around the construction site, and the quality of the project is difficult to guarantee; in addition, the panels of the cantilever and arm retaining walls in the project are made of steel bars. Concrete structures are generally made by on-site casting. The construction conditions are poor, and the quality of the retaining wall panels is uneven. After the construction is completed, it cannot bear the corresponding load immediately, thus affecting the progress of the project, and regular maintenance is required after construction.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the utility model provides a bolted angle steel connection assembled buttress retaining wall with simple structure, reliable quality and convenient construction.

The technical solution of the present invention to solve the above problems is: a bolted angle steel connection assembled buttress retaining wall, which includes a plurality of retaining wall units arranged side by side, and the retaining wall units all include a bottom plate, a vertical plate and a supporting wall. The wall, the vertical plate and the buttress are arranged on the bottom plate perpendicular to the bottom plate, the buttress is perpendicular to the vertical plate, and the supporting surface of the buttress is in contact with the back of the vertical plate; between the bottom of the vertical plate and the bottom plate, between the bottom of the buttress and the bottom plate, and Angle steel and bolts are used to connect the buttress and the back of the vertical plate.

In the above-mentioned bolt-angle-steel-connected assembled buttress retaining wall, grooves are provided at the installation positions of the vertical plate and the buttress on the bottom plate; the bottom plate, the vertical plate and the buttress are all reinforced concrete structures.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, the bottom plates of two adjacent retaining wall units are connected by a mortise and tenon structure, or the opposite surfaces of the bottom plates of the two adjacent retaining wall units are matched with each other. The L-shaped structure of the two bottom plates is connected by bolts after overlapping.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, the bottom plate is provided with bolts near the grooves, and the bolts are welded with the steel bars in the bottom plate, and the bottom of the vertical plate is provided with transverse bolt holes or bolts, and the bolt holes are provided with bolts. Or the position of the bolt corresponds to the position of the bolt hole on the angle steel connecting the vertical plate and the bottom plate, the bottom of the buttress and the side close to the vertical plate are provided with bolt holes, and the bolt holes are connected with the vertical plate and the buttress. The positions of the holes correspond.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, the bolts on the bottom plate and the vertical plate are stud bolts or single-head bolts, and the stud bolts are in a shape, perpendicular to the bottom plate or the vertical plate and pass through the bottom plate or the vertical plate. For vertical plates, the threads at both ends of the stud bolts start from the surface of the bottom plate or vertical plate. The single-ended bolts are L-shaped, the threaded rod is perpendicular to the bottom plate or vertical plate, and the threads are exposed outside the bottom plate or vertical plate.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, the bottom plate, the upright plate bolts and the bolt holes on the buttress are arranged at equal distances, and are staggered with each other.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, the vertical plate and the buttress are fixed in the groove by pouring pure cement slurry into the groove of the bottom plate.

In the above-mentioned bolted angle steel connection assembled buttress retaining wall, bolt holes are arranged on the two side walls of the angle steel, and a plurality of ribs are arranged equidistantly between the two side walls of the angle steel, and the ribs are arranged perpendicular to the two side walls of the angle steel. .

Compared with the prior art, the beneficial effects of the present utility model are:

1. The bottom plate, vertical plate and buttress of the present invention are all reinforced concrete structures, which can be assembled and constructed on site, and have the advantages of high construction quality, simple on-site construction and low environmental pollution.

2. The utility model has two grooves on the bottom plate where the buttress and the vertical plate are connected, and the vertical plate and the buttress are fixed by pure cement slurry in the groove, which further strengthens the safety factor of the retaining wall and increases the safety of the project.

3. During the construction of the utility model, a plane pattern can be made on the outer side of the retaining wall to create a project landscape.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a top view of the utility model.

FIG. 3 is a schematic structural diagram of the bottom plate of the present invention.

4 is a schematic structural diagram of a vertical plate of the present invention.

FIG. 5 is a schematic view of the structure of the buttress of the present invention.

6 is a schematic structural diagram of the angle steel of the present invention.

7 is a schematic structural diagram of Embodiment 1 of the lap joint structure between the base plates of adjacent retaining wall units of the present invention.

8 is a schematic structural diagram of Embodiment 2 of the lap joint structure between the base plates of adjacent retaining wall units of the present invention

Figure 9 is a construction drawing of the utility model on-site assembly.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-8, the present invention includes a plurality of retaining wall units arranged side by side, and the retaining wall units all include a bottom plate 1, a vertical plate 2 and a buttress 3, the bottom plate 1, the vertical plate 2 and The buttresses 3 are all reinforced concrete structures, the bottom plate 1 is placed flat on the foundation 9, and a groove 6 is reserved at the installation place of the vertical plate 2 and the buttress 3 on the top surface of the bottom plate 1, and the groove 6 is T-shaped. A plurality of vertical single-headed bolts 7 are arranged at the edge of the groove 6, and the single-headed bolts 7 are L-shaped. The threads are exposed outside the base plate 1, and the threads start from the top surface of the base plate 1. As shown in Figures 7 and 8, the bottom plates 1 of two adjacent retaining wall units are connected by a mortise and tenon structure, or the opposite surfaces of the two bottom plates 1 are connected by an L-shaped structure and then connected by bolts, so as to increase the The integrity of the retaining wall project. The vertical plate 2 and the buttress 3 are placed in the groove 6 on the bottom plate perpendicular to the bottom plate 1 , and pure cement slurry is poured into the groove 6 to fix the vertical plate 2 and the buttress 4 in the groove 6 . The buttress 3 is perpendicular to the vertical plate 2 , and the supporting surface of the buttress 3 is in contact with the back of the vertical plate 2 .

A plurality of transverse single-headed bolts 7 and a plurality of transverse double-headed bolts 8 are provided at the bottom of the vertical plate 2 and near the supporting surface of the buttress 3 . The bolts on the bottom plate 1 and the vertical plate 2 and the bolt holes on the buttress 3 are arranged at equal distances, and are staggered with each other. The bottom of the buttress 3 and one end facing the vertical plate 2 are provided with a plurality of transverse bolt holes, and angle steel is used between the bottom of the vertical plate 2 and the bottom plate 1, between the bottom of the buttress 3 and the bottom plate 1, and between the buttress 3 and the back of the vertical plate 2. connect. Put the vertical plate 2 and the buttress 3 into the groove 6 of the bottom plate, fill the contact surface gap with pure cement slurry, and then align the bolt holes of the angle steel 10 with the single-head bolts 7 and stud bolts 8, and the bolts extend into the holes. and fasten with nuts. Stud bolts 8 The stud bolts are in a straight line shape and pass through the bottom plate or vertical plate perpendicular to the bottom plate or vertical plate. The threads at both ends of the stud bolt start from the surface of the bottom plate or vertical plate. As shown in FIG. 6 , the two side walls of the angle steel 10 are provided with bolt holes, a plurality of rib plates are arranged equidistantly between the two side walls of the angle steel, and the rib plates are arranged perpendicular to the two side walls of the angle steel. The bottom plate 1, the vertical plate 2 and the buttress 3 are installed. The angle steel 10 and the two types of bolts 7 and 8 at the splicing part are covered with concrete to form the secondary pouring part 4. After forming, the mold is removed and cured.

The implementation process of the present utility model is as follows: as shown in Figure 9, firstly use composite steel formwork prefabricated bottom plate 1, vertical plate 2 and buttress 3 in the prefabrication field according to the design drawing, and carry out maintenance according to the requirements of the reinforced concrete structure specification, stack, wait for After the construction site foundation 9 of the retaining wall meets the requirements, the bottom plate 1, the vertical plate 2 and the buttress 3 are transported to the site. Then use a truck crane to hoist the bottom plate 1 in place, and splicing adjacent bottom plates; then hoist the vertical plate 2 so that the vertical plate 2 is placed vertically on the bottom plate 1 and fixed with nuts. Then the angle steel 10 is pre-installed on the vertical plate 2 . Then, the angle steel 10 is installed on the buttress 3, and the buttress 3 is hoisted into the groove 6 of the bottom plate by a truck crane, and fixed with nuts. Finally, pour concrete at the connection of angle steel 10 to form a protective layer, backfill the wall after the strength meets the requirements of the specification, and compact the fill 5 to form a retaining wall.

Claims (8)

1. a kind of bolt Bolted angle connection assembled counterfort retaining wall, it is characterised in that: including multiple retaining wall lists arranged side by side Member, the retaining wall unit include bottom plate, vertical plate and counterfort, and vertical plate and counterfort are arranged on bottom plate perpendicular to bottom plate, help Wall is perpendicular to vertical plate, the supporting surface of counterfort and the rear-face contact of vertical plate；Between vertical plate bottom and bottom plate, counterfort bottom and bottom plate it Between and counterfort and the vertical plate back side between using angle steel and being bolted.

2. bolt Bolted angle connection assembled counterfort retaining wall according to claim 1, it is characterised in that: on the bottom plate The installation place of vertical plate and counterfort is equipped with groove；Bottom plate, vertical plate and counterfort are reinforced concrete structure.

3. bolt Bolted angle connection assembled counterfort retaining wall according to claim 2, it is characterised in that: two adjacent earth-retainings It is connected between the bottom plate of wall unit using tenon structure or the opposite face of the bottom plate of two adjacent retaining wall units is phase interworking The L-shaped structure of conjunction, the L-shaped structure of two bottom plates are connected by screw bolts after overlapping.

4. bolt Bolted angle connection assembled counterfort retaining wall according to claim 2, it is characterised in that: leaned on the bottom plate Nearly groove is equipped with bolt, and for bolt together with reinforcement welding in bottom plate, the vertical plate bottom is equipped with cross bolts hole or bolt, The position of bolt hole on angle steel that the position of bolt hole or bolt and vertical plate and bottom plate connect is corresponding, the counterfort bottom with It is equipped with bolt hole close to vertical plate side, bolt hole is corresponding with the position of bolt hole on the angle steel that vertical plate and counterfort connect.

5. bolt Bolted angle connection assembled counterfort retaining wall according to claim 4, it is characterised in that: the bottom plate is stood Bolt on plate uses stud or single ended bolt, and stud is in "-" type, perpendicular to bottom plate or vertical plate pass through bottom plate or Vertical plate, the screw thread at stud both ends start from the surface of bottom plate or vertical plate, and single ended bolt is L-shaped, and threaded bar portion is vertical In bottom plate or vertical plate, screw thread is exposed at outside bottom plate or vertical plate.

6. bolt Bolted angle connection assembled counterfort retaining wall according to claim 4, it is characterised in that: the bottom plate is stood Bolt hole equidistant placement on crab bolt and counterfort, it is cross-shaped between each other.

7. bolt Bolted angle connection assembled counterfort retaining wall according to claim 4, it is characterised in that: the bottom plate groove It is interior that vertical plate and counterfort are fixed in groove by pouring into neat slurry.

8. bolt Bolted angle connection assembled counterfort retaining wall according to claim 4, it is characterised in that: the angle steel two sides Wall is equipped with bolt hole, and equidistant placement has multiple floors between angle steel two sidewalls, and floor is arranged perpendicular to angle steel two sidewalls.