Construction method of fabricated ecological retaining wall

Abstract

The construction method has the advantages that prefabricated toe boards are adopted, front toes at the bottoms of the prefabricated vertical boards and tooth grooves in the rear portions of the prefabricated toe boards are inserted and fixed one by one when the prefabricated vertical boards are placed, and positioning of the prefabricated vertical boards is facilitated; the reinforced concrete post-pouring heel plate is poured, so that the prefabricated vertical plate, the cushion layer and the reinforced concrete post-pouring heel plate are integrated, dry and hard cement mortar is adopted to be fixedly bonded with related components when the back plate and the top pressing plate are prefabricated, the integrity is high, and the structure is stable; except the reinforced concrete post-pouring heel plate and the cushion layer which adopt a pouring mode, other prefabricated parts are produced in a controlled environment, so that the quality and precision of the parts are ensured, meanwhile, the influence of rain and snow weather is small, the parts only need to be transported to the site for installation, the construction efficiency is greatly improved, and the construction period is shortened; in the whole construction process, generation of construction waste and sewage is reduced, the problems of dust raising, noise and the like on a construction site are solved, and the influence on the environment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ecological retaining wall construction, and in particular to a construction method of an assembled ecological retaining wall. Background Art

[0002] Most slope projects use retaining walls cast with on-site concrete. However, with the rapid development of social economy and the rapid advancement of urbanization in various places, the construction and renovation of municipal engineering projects are also accelerating. The traditional cast-in-place concrete retaining walls have gradually shown their disadvantages in actual construction: cast-in-place concrete structures have high requirements for construction sites, too long concrete pouring period, high project costs and other engineering problems.

[0003] Assembled retaining wall panels are prefabricated in factories and installed on site, which makes them unique. In addition, for areas with poor foundation conditions and lack of stone, as they require light and small walls, small footprint and low foundation bearing capacity, the use of assembled retaining walls is the best choice. However, the existing construction process of buttress assembled retaining walls has too many wall assembly processes, resulting in unstable wall foundations and poor integrity, which needs to be improved urgently. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a construction method of an assembled ecological retaining wall with stable structure and strong integrity.

[0005] A technical solution adopted by the present invention to solve the above problem is: a construction method of an assembled ecological retaining wall, which specifically includes the following steps:

[0006] Place the precast toe board on the pad and secure it;

[0007] Lift the prefabricated vertical panels and make the front toe of the bottom of each prefabricated vertical panel be inserted and fixed with the tooth groove of the rear part of the prefabricated toe board;

[0008] After laying the reinforcement, support the heel plate formwork;

[0009] Casting concrete to form a reinforced concrete post-cast heel plate, so that the precast slab is integrated with the cushion layer and the reinforced concrete post-cast heel plate;

[0010] Place the prefabricated back plate, and fill the gap between the bottom of the prefabricated back plate and the reinforced concrete post-cast heel plate with dry hard cement mortar;

[0011] The prefabricated top plate is hoisted and placed, and bonded to the top of the prefabricated vertical plate using dry hard cement mortar.

[0012] Compared with the prior art, the advantages of this construction method are that it adopts a prefabricated toe plate, and when placing the prefabricated vertical panels, the front toes at the bottom of each prefabricated vertical panel are plugged and fixed with the teeth at the rear of the prefabricated toe plate one by one, which facilitates the positioning of the prefabricated vertical panels; the reinforced concrete post-cast heel plate is cast, so that the prefabricated vertical panel, the cushion layer and the reinforced concrete post-cast heel plate are integrated, and dry hard cement mortar is used in the prefabricated back plate and the prefabricated top plate to bond and fix with related components, with strong integrity and stable structure; except for the reinforced concrete post-cast heel plate and the cushion layer which are cast, the other prefabricated components are produced in a controlled environment, ensuring the quality and precision of the components, and are less affected by rain and snow weather, and only need to be transported to the site for installation, which greatly improves the construction efficiency and shortens the construction period. The generation of construction waste and sewage is reduced during the overall construction process, which is conducive to improving problems such as dust and noise at the construction site and reducing the impact on the environment.

[0013] Preferably, a plurality of steel bar holes are reserved at the bottom of the precast vertical slab and are distributed in two rows, and during the laying of steel bars, the main force-bearing bars of the reinforced concrete post-cast heel slab pass through the plurality of steel bar holes on the same axis or through the empty grooves between the front toes and the rear toes at the bottom of the plurality of precast vertical slabs, and the stirrups of the reinforced concrete post-cast heel slab are tied between two adjacent precast vertical slabs. The connection stability between the precast vertical slab and the reinforced concrete post-cast heel slab is stronger.

[0014] As an improvement, the bottom of the prefabricated top plate is provided with a plurality of embedding grooves, and when the prefabricated top plate is hoisted and placed, the top of the prefabricated vertical plate below it is embedded in the embedding grooves, so as to strengthen the fixation of the prefabricated top plate and the prefabricated vertical plate.

[0015] Preferably, a prefabricated toe plate is provided with a reserved hole on the toe block beside the tooth groove, and the prefabricated toe plate is fixed to the cushion layer by the steel bars that penetrate the cushion layer through the reserved hole. This facilitates the fixation of the prefabricated toe plate to the cushion layer, and does not require reserved holes in the cushion layer, thereby reducing the difficulty of fixing the prefabricated toe plate.

[0016] As an improvement, before laying the steel bars, the plastic steel plate is anchored on the inclined surface of the prefabricated vertical plate against the prefabricated back plate by screws, so that the relative positions of the prefabricated vertical plates do not move. When the fixation of the prefabricated toe plate and the cushion layer is insufficient to support the prefabricated vertical plates, the adjacent prefabricated vertical plates are connected by plastic steel plates to ensure that the relative positions of the prefabricated vertical plates do not move, so as to avoid the accident of the prefabricated vertical plates toppling when laying the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of the assembled ecological retaining wall of the building of the present invention. DETAILED DESCRIPTION

[0018] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to aid understanding, which should be considered as merely exemplary, and the communication wires and wires in the box are not drawn to make the box clearly visible. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0019] The preferred embodiment is as follows Figure 1 The construction method of the assembled ecological retaining wall specifically includes the following steps:

[0020] Excavation and leveling of foundation;

[0021] Supporting the formwork on the flat foundation and pouring the cushion layer 1;

[0022] Place the prefabricated toe plate 4 on the cushion layer 1, and use steel bars to penetrate the cushion layer 1 from the reserved holes on the toe blocks of the prefabricated toe plate 4 to fix the prefabricated toe plate 4 to the cushion layer 1;

[0023] The prefabricated vertical panels 2 are hoisted and the front toes at the bottom of each prefabricated vertical panel 2 are plugged and fixed one by one with the tooth grooves at the rear of the prefabricated toe plate 4; the prefabricated vertical panels 2 are arranged in a louver-like manner, leaving gaps between each other to provide growth space for aquatic animals and plants, and fish nest bricks, microbial carriers, etc. can be set between them to effectively enhance the ecological function;

[0024] Anchoring the plastic steel plate 7 on the inclined surface of the prefabricated vertical plate 2 for abutting against the prefabricated back plate 3 by screws, so that the relative positions of the prefabricated vertical plates 2 do not move;

[0025] After laying the steel bars, the heel plate formwork is supported; multiple steel bar holes are reserved at the bottom of the precast vertical plate 2 and are distributed in two rows. During the laying of the steel bars, the main force-bearing bars pass through multiple steel bar holes on the same axis or through the empty grooves between the front toes and the rear toes at the bottom of multiple precast vertical plates 2, and the stirrups are tied between two adjacent precast vertical plates 2;

[0026] Casting concrete to form a reinforced concrete post-cast heel plate 5, so that the precast vertical plate 2 is integrated with the cushion layer 1 and the reinforced concrete post-cast heel plate 5;

[0027] Place the prefabricated backboard 3, and use dry hard cement mortar to fill the gap between the bottom of the prefabricated backboard 3 and the reinforced concrete back-cast heel plate 5 8; the prefabricated backboard 3 is preferably a permeable backboard made of sandless concrete, which has a high water permeability while bearing soil pressure, is conducive to water-soil exchange, enhances the ecological interaction function between the river channel and the soil, and is permeable to water but not to soil, effectively preventing soil erosion;

[0028] Apply dry hard cement mortar on the top of the prefabricated vertical plate 2, hoist and place the prefabricated top plate 6, so that the top of the prefabricated vertical plate 2 below it is embedded in the embedded groove at the bottom of the prefabricated top plate 6, and use dry hard cement mortar to bond and fix the prefabricated top plate 6 to the top of the prefabricated vertical plate 2;

[0029] Backfill pond slag behind the wall and lay geotextile;

[0030] The retaining wall is completed by backfilling the earth.

[0031] When this assembled ecological retaining wall is in normal use, it relies on the louver side to block water normally, while also being beautiful. It exchanges water with the geotextile and the soil behind the wall through the permeable back plate, while also taking into account the function of retaining soil.

[0032] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction method for an assembled ecological retaining wall, characterized in that: The specific steps include: Place the precast toe board on the pad and secure it; Lift the prefabricated vertical panels and make sure that the front toes at the bottom of each prefabricated vertical panel are plugged and fixed into the tooth grooves at the rear of the prefabricated toe board one by one; After laying the reinforcement, support the heel plate formwork; Casting concrete to form a reinforced concrete post-cast heel plate, so that the precast slab is integrated with the cushion layer and the reinforced concrete post-cast heel plate; Place the prefabricated back plate, and fill the gap between the bottom of the prefabricated back plate and the reinforced concrete post-cast heel plate with dry hard cement mortar; The prefabricated top plate is hoisted and placed, and dry hard cement mortar is used to bond the bottom of the prefabricated top plate to the top of the prefabricated vertical plate.

2. A construction method for an assembled ecological retaining wall according to claim 1 or 2, characterized in that: A plurality of steel bar holes are reserved at the bottom of the precast vertical slab and are distributed in two rows, upper and lower. During the laying of steel bars, the main force-bearing bars of the reinforced concrete post-cast heel slab pass through the plurality of steel bar holes on the same axis or through the empty grooves between the front toes and the rear toes at the bottom of the plurality of precast vertical slabs, and the stirrups of the reinforced concrete post-cast heel slab are tied between two adjacent precast vertical slabs.

3. A construction method of an assembled ecological retaining wall according to claim 1 or 2, characterized in that: The bottom of the prefabricated top plate is provided with a plurality of embedding grooves, and when the prefabricated top plate is hoisted and placed, the top ends of the prefabricated vertical plates below it are embedded in the embedding grooves.

4. A construction method of an assembled ecological retaining wall according to claim 1 or 2, characterized in that: A reserved hole is arranged on the toe block beside the tooth groove of the prefabricated toe plate, and the prefabricated toe plate is fixed to the cushion layer by the steel bars which penetrate the cushion layer through the reserved hole.

5. The construction method of a prefabricated ecological retaining wall according to claim 4, characterized in that: Before laying the steel bars, the plastic steel plate is anchored on the inclined surface of the prefabricated vertical plate against the prefabricated back plate by screws so that the relative positions of the prefabricated vertical plates do not move.

Images