CN209989834U

CN209989834U - Prefabricated combination barricade of assembled of having pile foundation condition

Info

Publication number: CN209989834U
Application number: CN201920332570.9U
Authority: CN
Inventors: 沈达; 邓柏旺; 袁晓宇; 赵敏华; 徐燚; 曹晓
Original assignee: SHANGHAI HYDRAULIC ENGINEERING GROUP Co Ltd
Current assignee: SHANGHAI HYDRAULIC ENGINEERING GROUP Co Ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-01-24
Anticipated expiration: 2029-03-15

Abstract

An assembled prefabricated combined retaining wall with pile foundation conditions comprises a bottom plate boundary beam (1), a retaining wall frame (3) and side wall inserting plates (4); the retaining wall framework (3) comprises a horizontally-arranged support at the bottom of the front side and a vertical support erected at the rear side, the rear part of the horizontally-arranged support is connected with the bottom of the vertical support through a cross beam, further, a bottom plate boundary beam (1) is inserted in the front part of the horizontally-arranged support, and a side wall inserting plate (4) is vertically installed on the vertical support. Each assembly unit is reasonable in split, has the advantage of convenient transportation and construction, and can greatly shorten the construction time, thereby reducing the construction cost. The method is suitable for quick construction of the retaining wall, and is particularly suitable for construction sites with poor geological conditions, pile foundations or tidal level changes.

Description

Prefabricated combination barricade of assembled of having pile foundation condition

Technical Field

The utility model relates to a precast concrete barricade component for capital construction engineering, especially an assembled prefabricated combination barricade that has pile foundation condition.

Background

The fabricated structure is a concrete structure formed by assembling and connecting prefabricated components serving as main stress components. PC (precast concrete) is a short for prefabricated concrete structure, and the prefabricated reinforced concrete structure is one of important directions for the development of building structures in China, is favorable for improving the production efficiency, saving energy, developing green and environment-friendly buildings and improving and ensuring the quality of building engineering. Compared with a cast-in-place construction method, the assembly type PC structure is beneficial to green construction, because the assembly type construction can better meet the requirements of land saving, energy saving, material saving, water saving, environmental protection and the like of the green construction, the negative effects on the environment are reduced, including noise reduction, dust prevention, environmental pollution reduction, clean transportation, field interference reduction, water, electricity, material and other resources and energy sources, and the principle of sustainable development is followed.

The fabricated retaining wall is particularly suitable for construction conditions with pile foundations, but

Aiming at the construction conditions with poor geological conditions and pile foundations, the related patent documents of the technical scheme applicable to the fabricated retaining wall are less in disclosure, and are found through retrieval:

the Chinese patent application CN201720979436.9 of the road and bridge engineering group of Jiangxi province discloses a prestress assembly type combined retaining wall structure, which comprises a strip-shaped shallow foundation, an anchoring end plate, an anchor cable and a prefabricated column; the retaining wall adopts a strip-shaped shallow foundation, a step-type cup mouth is reserved at the upper part of the strip-shaped shallow foundation, an anchoring end plate is pre-embedded in the retaining wall, long and short connecting screw rods and anchor cables are arranged on the top surface of the anchoring end plate, the long and short connecting screw rods extend upwards out of the cup mouth surface of the strip-shaped shallow foundation to be anchored with the prefabricated column, and the anchor cables penetrate through a column body grouting channel in the prefabricated column to be tensioned and anchored at the top of; the strip-shaped shallow foundation can be an integral foundation or an independent foundation, and a step-type cup opening is reserved according to the cross section size of the prefabricated column.

Hangzhou Jianghun science and technology Limited discloses a prestressed assembly type combined retaining wall structure in Chinese patent application CN201710664934.9, which comprises a pile foundation, an anti-shearing anchoring cylinder, an anchor cable, a prefabricated column, an assembly type prefabricated plate and a U-shaped reinforced concrete groove; the retaining wall adopts a pile foundation, a shear-resistant anchoring cylinder is embedded in the pile top, a middle partition plate with an anchor rope is arranged in the shear-resistant anchoring cylinder, the anchor rope penetrates through a cylinder mud jacking channel in the prefabricated column to be tensioned and anchored on the column top, and a post-cast expanded body is arranged at the connection position of the pile; column transverse connecting ribs are reserved on two sides of the upper part of the prefabricated column, are connected by straight thread sleeves and are covered by a U-shaped reinforced concrete groove, and the U-shaped reinforced concrete groove and the prefabricated plate are anchored and then grouted to form reinforcing ribs; the top of the column plate is provided with an integral anchoring plate and is embedded into the cast-in-place concrete coping.

The existing fabricated retaining wall is poor in geological condition, the bearing capacity of the foundation is insufficient, the applicable effect of the condition that a pile foundation is built is not good enough, the bottom plate and the side wall are poured integrally due to the fact that the bottom plate and the side wall are poured integrally, the mode member adopting the integral pouring is irregular in shape, and the assembled retaining wall is large in size, inconvenient to transport and easy to damage in the transportation and construction processes. In addition, because the weight of a single assembly type retaining wall component is large, a large-sized crane is needed in the construction process, the construction is difficult, and the engineering cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an assembled combination barricade structure suitable for there is pile foundation condition not only can solve the suitability problem to there being the pile foundation condition, also can effectively solve the problem of transportation and construction difficulty.

In order to realize the technical purpose, the utility model adopts the following technical proposal: the side wall plate comprises a bottom plate side beam, a retaining wall frame and a side wall inserting plate; the retaining wall frame comprises a horizontally arranged support at the bottom of the front side and a vertical support erected at the rear side, the rear part of the horizontally arranged support is connected with the bottom of the vertical support through a cross beam, a bottom plate side beam is inserted in the front part of the horizontally arranged support, and a side wall inserting plate is vertically installed on the vertical support.

Particularly, a group of preset steel bars are horizontally arranged on the horizontally arranged support of the retaining wall frame, and the rear ends of the preset steel bars are fixed on the bottom cross beam of the vertical support on the retaining wall frame.

In particular, grooves are arranged on the upper side of the cross beam and the inner side wall of the middle part of the vertical support.

In particular, the left and right edges of the rear part of the bottom plate boundary beam are respectively connected with the extending arms backwards, the rear ends of the left and right extending arms are respectively provided with a reinforcing steel bar hole, correspondingly, the left and right edges of the front part of the retaining wall framework respectively extend out of the base towards the front side, the left and right bases respectively extend out of the splicing reinforcing steel bars forwards, and the left and right sides of the rear part of the bottom plate boundary beam are respectively spliced with the left and right splicing reinforcing steel bars of the front part of the retaining wall framework correspondingly through the extending.

Particularly, the bottom plate boundary beams and the retaining wall frames form a rectangular frame structure after being horizontally spliced, and the concrete bottom plate is cast in situ by taking the frame structure as a template.

The utility model discloses an advantage and effect: each assembly unit split is reasonable, has the convenient advantage of transportation construction, simple structure, transportation convenience, efficiency of construction are high, can shorten the engineering time greatly to reduce construction cost. The method is suitable for quick construction of the retaining wall, and is particularly suitable for construction sites with poor geological conditions, pile foundations or tidal level changes.

Drawings

Fig. 1 is a schematic plan view of each assembly unit of the present invention.

Fig. 2 is a perspective view of each assembly unit of the present invention.

Fig. 3 is a schematic view of the overall assembly structure of the present invention.

The reference numerals include:

1-bottom plate boundary beam, 2-preset steel bar, 3-retaining wall frame, 4-side wall inserting plate and 5-groove.

Detailed Description

The utility model discloses a principle lies in, to the geological conditions poor, have the construction condition of pile foundation, through many years of practices and theoretical research discovery, assembled concrete member has systematic design, modularization split, produces under the factory control condition, and the quality assurance rate is high, and on-the-spot assembly is assembled, and construction speed is fast, and is little to influence on every side, uses material, artifical few characteristics. According to statistics, compared with the traditional building method, the assembly type building can save about 30% of labor per square meter of building area, reduce about 15% of construction cost and shorten about 50% of construction period.

The utility model discloses mainly by bottom plate boundary beam 1, predetermine reinforcing bar 2, barricade frame 3 and side wall picture peg 4 and constitute.

The invention is further described below with reference to the following figures and examples:

example (b): as shown in fig. 1, 2 and 3, the retaining wall frame 3 comprises a horizontally arranged support at the bottom of the front side and a vertical support erected at the rear side, the rear part of the horizontally arranged support is connected with the bottom of the vertical support through a cross beam, further, a bottom plate boundary beam 1 is inserted in the front part of the horizontally arranged support, and a side wall inserting plate 4 is erected on the vertical support.

In the foregoing:

a set of preset steel bars 2 are horizontally arranged on a horizontally arranged support of the wall frame 3, and the rear ends of the preset steel bars 2 are fixed on a bottom cross beam of a vertical support on the retaining wall frame 3.

The upper side of the beam and the inner side wall of the middle part of the vertical bracket are provided with grooves 5. The size of the groove 5 is that the stress support width and the thickness of the side wall inserting plate 4 are designed, a reserved deviation value is added, and the side wall inserting plate 4 is inserted into the groove 5 in a hoisting mode; the specific size of the retaining wall frame 3 can be adjusted according to the design requirements.

The left and right edges of the rear part of the bottom plate boundary beam 1 are respectively connected with the extending arms backwards, the rear ends of the left and right extending arms are respectively provided with a reinforcing steel bar hole, correspondingly, the left and right edges of the front part of the retaining wall framework 3 are respectively extended out of the base towards the front side, the base at the left and right sides is respectively connected with the splicing reinforcing steel bars forwards, and the left and right sides of the rear part of the bottom plate boundary beam 1 are respectively spliced with the splicing reinforcing steel bars at the left and right sides of the front part of the. The inserted steel bars are determined according to the number of the reinforcing bars required by design. The specific size of the bottom plate boundary beam 1 can be adjusted according to the design requirement.

The side wall inserting plates 4 are internally provided with reinforcing steel bars, and the thickness of the side wall inserting plates 4 is designed and can be adjusted according to design requirements.

The utility model discloses specific production and construction steps are as follows:

firstly, a specific construction area is planned before construction, square pile sinking construction is started, site leveling and concrete cushion layer pouring are carried out, components are prefabricated according to design drawing requirements, and the components are transported to a construction site to be stacked after quality inspection is qualified.

After the foundation construction is completed, the retaining wall frame 3 is directly entered, and the retaining wall frame 3 is hoisted and placed on the pile foundation.

After the retaining wall frame 3 is hoisted in place, the bottom plate boundary beam 1 is directly connected with the retaining wall frame 3 through the preset steel bar 2, a rectangular frame structure formed by horizontally splicing the bottom plate boundary beam 1 and the retaining wall frame 3 is used as a template, and a concrete bottom plate is cast in place; inserting the side wall inserting plate 4 into a groove preset in the retaining wall frame 3 in a hoisting mode; and the high-performance sealing water-stopping material is used for filling the gaps on site, so that all the assembly units are tightly connected.

The side wall inserting plates 4 are prefabricated according to design requirements, and are directly hoisted in place by a crane after the appearance size is inspected to be qualified, and are arranged in the grooves 5 preset in the retaining wall frame 3.

After the assembly work is finished, the gap is embedded and filled on the spot by using a high-performance sealing water-stopping material, so that the tight connection among the assembly units is ensured, and water can be effectively stopped.

After the operation is finished, paving the retaining walls one by one to the designed length to finish the construction of the retaining wall main body structure; and when the strength reaches over 75 percent of the designed strength, filling soil after the wall is paved and compacting.

Claims

1. An assembled prefabricated combined retaining wall with pile foundation conditions comprises a bottom plate boundary beam (1), a retaining wall frame (3) and side wall inserting plates (4); the retaining wall is characterized in that the retaining wall framework (3) comprises a horizontally-arranged support at the bottom of the front side and a vertical support erected at the rear side, the rear part of the horizontally-arranged support is connected with the bottom of the vertical support through a cross beam, further, a bottom plate boundary beam (1) is inserted in the front part of the horizontally-arranged support, and a side wall inserting plate (4) is vertically installed on the vertical support.

2. An assembled prefabricated retaining wall with pile foundation conditions, according to claim 1, wherein a set of pre-set reinforcing bars (2) are horizontally installed on the horizontal support of the retaining wall frame (3), and the rear ends of the pre-set reinforcing bars (2) are fixed on the vertical support bottom beams of the retaining wall frame (3).

3. An assembled prefabricated retaining wall with a piling condition according to claim 1, wherein the upper side of the cross member and the inner side wall of the middle portion of the vertical support are provided with grooves (5).

4. The prefabricated combined retaining wall with pile foundation according to claim 1, wherein the left and right edges of the rear part of the bottom plate edge beam (1) are respectively connected with the extending arms backward, the rear ends of the left and right extending arms are respectively provided with the reinforcing bar holes, correspondingly, the left and right edges of the front part of the retaining wall frame (3) are respectively extended out of the base forward, the left and right bases are respectively connected with the inserting reinforcing bars forward, and the left and right sides of the rear part of the bottom plate edge beam (1) are respectively inserted into the left and right inserting reinforcing bars of the front part of the retaining wall frame (3) correspondingly through the extending arm reinforcing bar holes.

5. The prefabricated composite retaining wall with the pile foundation condition as claimed in claim 1, wherein the bottom plate boundary beams (1) and the retaining wall frames (3) are horizontally inserted to form a rectangular frame structure, and the concrete bottom plate is cast in situ using the frame structure as a formwork.