Prefabricated assembly type rectangular anti-slide pile retaining wall installed through counter-force system

Abstract

The utility model relates to a prefabricated assembly type rectangular slide-resistant pile retaining wall installed by using a counterforce system, which comprises a prefabricated assembly type retaining wall formed by a plurality of sub retaining walls, and is characterized in that the lower end of the sub retaining wall at the bottommost layer is provided with a single-blade structure with a 45-degree inclination angle, and the single-blade structure is wrapped by a wear-resistant layer; integrated tooth-shaped connectors are annularly arranged at the upper ends and the lower ends of every two adjacent sub protection walls, and every two adjacent tooth-shaped connectors are bonded together through strong resin. And a counter-force system is arranged at the top of the sub protection wall on the topmost layer at the orifice of the slide-resistant pile. The protective wall has the advantages of being high in installation efficiency, good in safety and capable of avoiding water seepage, and the integrity of the protective wall can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of landslide control, in particular to a prefabricated assembled rectangular anti-slide pile wall protection installed by using a reaction force system. Background Art

[0002] At present, anti-slide piles have been widely used in landslide control projects. In view of the difficulties faced in the construction of anti-slide piles in the control of large loose accumulation landslides, CN 211773608 U provides a prefabricated assembled rectangular anti-slide pile retaining wall. Although this document solves some technical problems, its installation efficiency is not high when it only uses its own weight and the assistance of ground machinery, which can easily lead to delays in the construction period. In addition, during the installation process, the sub-retaining wall has poor contact with the machinery and the connection between the sub-retaining walls is not reliable, which affects the integrity of the retaining wall. In addition, the connection between each section of the sub-retaining wall is prone to water seepage due to loose connection, which poses a safety hazard. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a prefabricated assembled rectangular anti-slip pile wall protection which is installed by a reaction force system and has improved installation efficiency, good safety and avoids water seepage.

[0004] In order to solve the above problems, the utility model describes a prefabricated and assembled rectangular anti-slip pile guard wall installed by means of a reaction force system, comprising a prefabricated and assembled guard wall composed of several sections of sub-guard walls, characterized in that: the lower end of the bottom-layer sub-guard wall is provided with a single-edge structure with an inclination angle of 45 degrees, and the outside of the single-edge structure is wrapped with a wear-resistant layer; the upper and lower ends of the two adjacent sections of the sub-guard walls are circumferentially provided with integrated toothed interfaces, and the two adjacent toothed interfaces are bonded together by a strong resin; a reaction force system is provided at the top of the top-layer sub-guard wall at the opening of the anti-slip pile.

[0005] Each section of the sub-retaining wall is a reinforced concrete rectangular structure prefabricated on site, and its height is 1.5m.

[0006] The prefabricated assembled retaining wall is connected into a whole through the toothed interfaces that match the adjacent sub-retaining walls.

[0007] The reaction force system includes two groups of piers fixed on the ground surface, steel beams placed on the two groups of piers, ground anchors arranged at the ends of the steel beams and jacks arranged at the four corners of the topmost sub-retaining wall; the two groups of piers are symmetrically arranged around the prefabricated assembled retaining wall; the anchoring section of the ground anchor is arranged in the stable stratum below the sliding surface; a steel plate is provided on the top of the sub-retaining wall, and the jack is provided on the steel plate; the top of the jack is in contact with the bottom of the steel beam.

[0008] The steel beam is flush with the short side of the sub-protection wall.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] 1. The utility model utilizes the reaction force system combined with the ground-breaking advantage of a single-edged structure arranged at the lower end of the first section of the bottom layer of the sub-wall, which can greatly improve the installation efficiency and shorten the construction period.

[0011] 2. When the utility model is installed, due to the arrangement of the toothed interfaces between the sub-protective walls, good contact between the sub-protective walls can be achieved by increasing the contact area, thereby improving the integrity of the protective wall.

[0012] 3. The toothed interface at the neutron wall protection connection of the utility model is filled with strong resin, which can better eliminate water seepage at the wall protection interface, thereby improving the safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the prefabricated assembled wall protection structure of the utility model.

[0015] Figure 2 This is a partial enlarged view of the bonding of the toothed interface of the neutron protection wall of the utility model.

[0016] Figure 3 This is a schematic diagram of the neutron protection wall structure of the utility model.

[0017] Figure 4 It is the AA cross-sectional view of the present utility model.

[0018] Figure 5 It is a longitudinal cross-sectional view of the prefabricated assembled wall protection of the utility model.

[0019] Figure 6 This is an enlarged view of the toothed interface in the utility model.

[0020] Figure 7 It is an installation diagram of the utility model and a cross-sectional diagram of the reaction force system.

[0021] Figure 8 It is a plan view of the reaction force system of the utility model.

[0022] In the figure: 1—reaction system, 2—sub-wall, 3—single-edge structure, 4—wear-resistant layer, 5—toothed interface, 6—strong glue, 7—ground anchor, 8—jack, 9—steel beam, 10—pier, 11—steel plate. DETAILED DESCRIPTION

[0023] like Figures 1 to 8As shown, a prefabricated rectangular anti-slip pile retaining wall installed by using a reaction force system includes a prefabricated retaining wall composed of several sections of retaining walls 2. The lower end of the bottom layer of retaining walls 2 is provided with a single-edge structure 3 with an inclination angle of 45 degrees, and the outer side of the single-edge structure 3 is wrapped with a wear-resistant layer 4; the upper and lower ends of the two adjacent sections of retaining walls 2 are provided with integrated toothed interfaces 5 in a circumferential direction, and the two adjacent toothed interfaces 5 are bonded together by strong resin 6; the top of the top layer of retaining walls 2 at the opening of the anti-slip pile is provided with a reaction force system 1.

[0024] Among them: each section of the sub-wall 2 is a reinforced concrete rectangular structure prefabricated on site, and its height is 1.5m.

[0025] The prefabricated assembled retaining wall is connected into a whole through the toothed interfaces 5 of the adjacent sub-retaining walls 2 that fit together.

[0026] The reaction force system 1 includes two groups of piers 10 fixed on the ground surface, steel beams 9 placed on the two groups of piers 10, ground anchors 7 arranged at the ends of the steel beams 9 and jacks 8 arranged at the four corners of the topmost sub-retaining wall 2; the two groups of piers 10 are symmetrically arranged around the prefabricated assembled retaining wall; the anchoring section of the ground anchor 7 is arranged in the stable stratum below the sliding surface; a steel plate 11 is provided on the top of the sub-retaining wall 2, and a jack 8 is provided on the steel plate 11; the top of the jack 8 is in contact with the bottom of the steel beam 9.

[0027] The steel beam 9 is flush with the short side of the sub-protection wall 2 .

[0028] The reaction force system 1 in the utility model can make each section of the sub-wall 2 sink quickly and steadily to a predetermined depth. It is designed and calculated based on the side friction resistance of the assembled anti-slip pile wall, and the necessary anchors 7 and steel beams 9 are designed and calculated, and the model of the jack 8 is selected. After determining the position of the steel beam 9, two groups of four piers 10 are cast at both ends of the steel beam 9 for placing the steel beam 9. During installation, in order not to damage the sub-wall 2 and to form a good contact with the sub-wall 2, a steel plate 11 is placed at the bottom of the jack 8.

[0029] Embodiment: Rectangular anti-slide pile hole digging and wall protection in large loose accumulation landslide treatment

[0030] The reaction force system 1 is set by design calculation, each section of the sub-wall 2 is quickly sunk to the corresponding position and the upper and lower sections of the sub-wall 2 are installed, and each section of the sub-wall 2 is also reinforced according to the design calculation. The prefabricated reinforced concrete structure carried out on site is a box-shaped structure without a bottom and a top.

[0031] The first section of the bottom layer of the sub-wall 2 is designed with a 45-degree inclined single-edge structure 3 at the lower end. The outer surface of the single-edge structure 3 is wrapped with a wear-resistant layer 4, which is conducive to sinking and can reduce the resistance of the end to better break the ground. After that, each section of the adjacent sub-wall 2 is directly connected by a toothed interface 5 of matching shape and size. The serrated structure in the toothed interface 5 is an integrated rectangular structure arranged along the circumferential direction of the sub-wall 2. Figures 5 and 6 , the sawtooth structure on the end face of the same sub-protection wall 2 forms a "mouth" shape in the middle section, and the upper end of the last section of the sub-protection wall 2 does not need to be provided with a toothed interface 5. The toothed interface 5 makes each section of the sub-protection wall 2 fit together, and then uses a strong resin 6 for bonding. Figure 2 , realizing the integration between the sub-protection walls.

[0032] The specific installation steps are as follows:

[0033] Installation of the reaction force system 1: First, place the steel beam 9 on the pier 10. When placing it, a certain position needs to be reserved so that the sub-retaining wall 2 can be hoisted in. Then, after the crane hoists the sub-retaining wall 2 into the predetermined position, move the steel beam 9 pre-placed on the pier 10 so that it is flush with the short side of the sub-retaining wall 2. When the steel beam 9 moves to the predetermined position, fix the four ends of the steel beam 9 with the anchor 7, place four large-tonnage hydraulic jacks 8 on the four corners of the sub-retaining wall 2, and control them with sensors to synchronously press down the sub-retaining wall 2 to make it sink. In order to reduce the resistance before pressing each section of the sub-retaining wall 2, artificial advance excavation can be carried out to avoid excessive reaction force. In order not to damage the retaining wall, a steel plate 11 is placed at the bottom of the jack 8.

[0034] Before installing the first section of the sub-wall 2, it is necessary to measure and arrange the pile positions according to the design, clean and level the site as required. Then, after digging a short distance downward at the designated position, put in the first section of the sub-wall 2, continue digging and use the reaction force system 1 to make the first section of the sub-wall 2 sink.

[0035] After the installation of the previous section of the sub-wall 2 is completed, the crane is used to lift the next section of the sub-wall 2 and put it into the predetermined position of the hole tooth interface 5 to connect the two sub-walls 2. With the assistance of the reaction force system 1, the wall reaches the predetermined depth.

[0036] After each section of the sub-wall 2 is installed, the joints of the sub-walls 2 are bonded with a strong resin 6 to achieve integration between the sub-walls 2. See the schematic diagram of the installation of the sub-wall 2 for details. Figure 3~4 .

[0037] When the single-edge structure 3 reaches the designed depth, external assistance is used to allow the single-edge structure 3 to be embedded in the soil layer to a certain depth to ensure the overall stability of the retaining wall.

Claims

1. A prefabricated assembled rectangular anti-slip pile retaining wall installed using a reaction force system, comprising a prefabricated assembled retaining wall composed of several sections of retaining walls (2), characterized in that: The lower end of the bottommost sub-protection wall (2) is provided with a single-edge structure (3) with an inclination angle of 45 degrees, and the outside of the single-edge structure (3) is wrapped with a wear-resistant layer (4); the upper and lower ends of two adjacent sections of the sub-protection wall (2) are circumferentially provided with integrated toothed interfaces (5), and the two adjacent toothed interfaces (5) are bonded together by strong resin (6); and a reaction force system (1) is provided at the top of the topmost sub-protection wall (2) at the hole of the anti-slip pile.

2. A prefabricated rectangular anti-slip pile wall installed using a reaction force system as claimed in claim 1, characterized in that: Each section of the sub-protection wall (2) is a prefabricated reinforced concrete rectangular structure on site, and its height is 1.5m.

3. The prefabricated rectangular anti-slip pile wall installed by the reaction force system according to claim 1, characterized in that: The prefabricated assembled retaining wall is connected into a whole through the toothed interfaces (5) that fit the adjacent sub-retaining walls (2).

4. The prefabricated rectangular anti-slip pile wall installed by the reaction force system according to claim 1, characterized in that: The reaction force system (1) comprises two groups of piers (10) fixed on the ground surface, steel beams (9) placed on the two groups of piers (10), ground anchors (7) arranged at the ends of the steel beams (9), and jacks (8) arranged at the four corners of the topmost sub-protection wall (2); the two groups of piers (10) are symmetrically arranged around the prefabricated assembled protection wall; the anchoring section of the ground anchor (7) is arranged in a stable stratum below the sliding surface; a steel plate (11) is provided on the top of the sub-protection wall (2), and the jack (8) is provided on the steel plate (11); the top of the jack (8) is in contact with the bottom of the steel beam (9).

5. The prefabricated rectangular anti-slip pile wall installed by the reaction force system according to claim 4, characterized in that: The profiled steel beam (9) is flush with the short side of the sub-protection wall (2).

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