Cantilever type retaining wall capable of avoiding original wall foundation

Abstract

The utility model relates to a cantilever type retaining wall, which belongs to the technical field of geotechnical engineering, in particular to a cantilever type retaining wall capable of avoiding an original enclosing wall foundation, which comprises the original enclosing wall foundation, an off-site and a site, a concrete cushion layer is arranged at the bottom of the original enclosing wall foundation, and an original enclosing wall is fixedly mounted at the top of the original enclosing wall foundation. A brick blank film is fixedly installed on one side of the original enclosing wall, a retaining wall is fixedly installed on one side of the surface of the concrete cushion layer, and a first waterproof roll is arranged between the original enclosing wall and the brick blank film. According to the utility model, the effects of strong practicability and high construction quality are achieved, and the problems of lack of corresponding construction measures and lack of waterproof materials and poorer waterproof performance in the traditional construction mode under the condition that the land area in the field is insufficient in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of geotechnical engineering, especially a cantilever type retaining wall which can avoid the original enclosing wall foundation. BACKGROUND

[0002] During the overall construction process, because the building elevation inside and outside the site is inconsistent, a concrete retaining wall is often set according to the construction land red line.

[0003] According to the search, the patent with the announcement number CN209457034U discloses a cantilever type retaining wall reinforcing structure, a connecting beam is arranged in the filling body on the inner side of the cantilever type retaining wall, and the two ends of the connecting beam are respectively inserted into the imaginary wall back of the retaining wall and the second fracture surface; the utility model has the following advantages: the height is adjustable, the structure has good economy, the backfilling construction is convenient, and it is beneficial to popularization.

[0004] Based on the above search and the existing technology, it is found that

[0005] The above-mentioned patent sacrifices the site area inside the field, and moves the retaining wall as a whole to the field to avoid the enclosing wall foundation. However, in the case of a shortage of site area inside the field, the above-mentioned construction method cannot be used. In addition, the traditional construction method lacks waterproof materials and has poor waterproof performance, so there are certain limitations. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a cantilever type retaining wall which can avoid the original enclosing wall foundation, and ensures the site area inside the field as much as possible without affecting the original enclosing wall.

[0007] The technical solution for achieving the purpose of the utility model is as follows: a cantilever type retaining wall which can avoid the original enclosing wall foundation, comprising an original enclosing wall foundation, a field outside and a field, a concrete cushion layer is arranged at the bottom of the original enclosing wall foundation, an original enclosing wall is fixedly installed at the top of the original enclosing wall foundation, a brick membrane is fixedly installed on one side of the original enclosing wall, a retaining wall is fixedly installed on one side of the surface of the concrete cushion layer, and a waterproof coiled material one is arranged between the original enclosing wall and the brick membrane.

[0008] Preferably, one end of the retaining wall is fixedly connected with the brick membrane, and elementary soil is filled between the retaining wall and the original enclosing wall foundation.

[0009] Preferably, a polystyrene board is fixedly installed between the surface of the elementary soil and the retaining wall, and the bottom end of the elementary soil is fixedly connected with the surface of the concrete cushion layer.

[0010] Preferably, a waterproof coiled material two is fixedly installed on the outer top of the retaining wall, the top of the waterproof coiled material two is fixedly connected with one end of the waterproof coiled material one, and a building red line is arranged on one side of the original enclosing wall.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] Firstly, the utility model can ensure the land area in the site as much as possible without affecting the original enclosing wall, can complete good construction effect, shorten the construction period and improve the construction speed.

[0013] Secondly, the utility model installs the building materials such as high-quality polyphenyl board and waterproof coiled material, brings good waterproof function to the building as a whole, saves the construction material cost, and improves the economic benefit of construction.

[0014] The utility model solves the problem of the existing situation of the site land area being nervous, but lacks the corresponding construction measures, and the traditional construction mode lacks waterproof materials and has poor waterproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in combination with the drawings and embodiments:

[0016] Fig. 1 It is the first segment structure schematic view of retaining wall provided by the utility model;

[0017] Fig. 2 It is the second segment structure schematic view of retaining wall provided by the utility model;

[0018] Fig. 3 It is the third segment structure schematic view of retaining wall provided by the utility model.

[0019] EXPLANATION OF REFERENCE NUMERALS:

[0020] 1, original enclosing wall foundation; 2, original enclosing wall; 3, concrete cushion layer; 4, outside the site; 401, site; 5, retaining wall; 6, polyphenyl board; 7, plain soil; 8, waterproof coiled material one; 801, waterproof coiled material two; 9, brick membrane; 10, building red line. DETAILED DESCRIPTION

[0021] The utility model will be further explained in combination with the drawings and embodiments: obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0022] The utility model provides a kind of cantilever retaining wall that can avoid original enclosing wall foundation by improvement, and the technical scheme of the utility model is:

[0023] As Figs. 1-3As shown, a cantilever retaining wall that can avoid the original wall foundation, including the original wall foundation 1, the field 4 and the site 401, the bottom of the original wall foundation 1 is provided with a concrete cushion 3, the top of the original wall foundation 1 is fixedly installed with the original wall 2, one side of the original wall 2 is fixedly installed with the brick membrane 9, one side of the surface of the concrete cushion 3 is fixedly installed with the retaining wall 5, the waterproof coiled material 1 8 is arranged between the original wall 2 and the brick membrane 9, the waterproof coiled material has superior waterproof performance, can effectively block water penetration, ensure that the building structure is not damaged by water, and has excellent durability, can maintain the waterproof effect for a long time, reduce the frequency of maintenance and replacement.

[0024] Further, one end of the retaining wall 5 is fixedly connected with the brick membrane 9, the retaining wall 5 and the original wall foundation 1 are filled with the soil 7, the brick membrane 9 can save engineering cost, significantly shorten the underground construction period, reduce management cost, mechanical leasing cost and the like, and reduce construction cost.

[0025] Further, the surface of the soil 7 and the retaining wall 5 are fixedly installed with the polystyrene board 6, the bottom end of the soil 7 is fixedly connected with the surface of the concrete cushion 3, the polystyrene board 6 has superior water resistance and moisture resistance, the molecular structure of polystyrene itself is not easy to absorb water, which can effectively isolate external moisture and protect the internal structure of the building.

[0026] Further, the outer top of the retaining wall 5 is fixedly installed with the waterproof coiled material 2 801, the top of the waterproof coiled material 2 801 is fixedly connected with one end of the waterproof coiled material 1 8, one side of the original wall 2 is provided with the building red line 10, the multi-layer installation of the waterproof coiled material improves the waterproof performance of the building, and in addition, the building red line 10 is beneficial to ensure the accurate installation of the building.

[0027] The specific working method is: firstly, measuring and lofting, according to the positioning axis and elevation control point of the set line, the position relationship of the building red line 10 and the original wall 2 is checked by the total station, the bottom elevation of the wall foundation and the top elevation reached after the foundation construction are measured by the level; the base elevation, slope, width, axis position and base soil quality should meet the design requirements; secondly, the earthwork excavation is carried out, the foundation bottom elevation of the retaining wall 5 is strictly controlled, and the foundation bottom elevation of the original wall foundation 1 is not higher than the foundation bottom elevation; thirdly, the concrete cushion 3 construction is carried out, before the cushion construction, the sundries in the base range should be removed, the base should not be filled with humus soil, garbage soil or silt; if the soil layer of the base elevation position is missing, the graded sand and stone replacement can be used, and the stratified compaction is carried out to the design elevation; the replacement depth is 500mm, the sand and stone cushion construction must be layered and vibrated, and the thickness of each layer is not more than 250mm; the compaction coefficient is not less than 0.97, the sand and stone grading ratio is 3:7, the maximum particle size of the sand and stone is not more than 50mm, the top surface of the replacement cushion should be more than the bottom edge of the foundation by not less than 200mm, and the slope is 45 degrees from the bottom surface of the cushion to the top, the cushion is 100mm thick C20 concrete; in addition, for the construction of the waterproof coiled material 8 and the waterproof coiled material 801, after the completion of the cushion, 3mm thick polymer modified asphalt waterproof coiled material is laid between the proposed retaining wall 5 and the existing wall, the lower end of the coiled material is lower than the ground level outside the field by 250mm, and the upper end is higher than the retaining wall 5 by about 250mm; 100mm thick brick membrane 9 is used as the waterproof coiled material protection layer; finally, the main body construction of the retaining wall 5 is carried out.

[0028] The technical means disclosed in the technical scheme of the utility model is not limited to the technical means disclosed in the above technical means, and also includes the technical scheme composed by the equivalent replacement of the above technical features. The unfinished matters of the utility model belong to the common knowledge of the person skilled in the art.

Claims

1. A cantilever retaining wall that can bypass the foundation of an existing wall, comprising the original wall foundation (1), an off-site area (4), and a site (401), characterized in that: The bottom of the original wall foundation (1) is provided with a concrete pad (3), the top of the original wall foundation (1) is fixedly installed with the original wall (2), a brick formwork (9) is fixedly installed on one side of the original wall (2), a retaining wall (5) is fixedly installed on one side of the surface of the concrete pad (3), and a waterproof membrane (8) is provided between the original wall (2) and the brick formwork (9).

2. A cantilever retaining wall that can avoid the foundation of the original wall as described in claim 1, characterized in that: One end of the retaining wall (5) is fixedly connected to the brick formwork (9), and plain soil (7) is filled between the retaining wall (5) and the original wall foundation (1).

3. A cantilever retaining wall that can avoid the foundation of the original wall as described in claim 2, characterized in that: A polystyrene board (6) is fixedly installed between the surface of the plain soil (7) and the retaining wall (5), and the bottom end of the plain soil (7) is fixedly connected to the surface of the concrete cushion layer (3).

4. A cantilever retaining wall that can avoid the foundation of the original wall as described in claim 1, characterized in that: A second waterproof membrane (801) is fixedly installed on the top of the retaining wall (5). The top of the second waterproof membrane (801) is fixedly connected to one end of the first waterproof membrane (8). A building boundary line (10) is set on one side of the original wall (2).

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