CN213836729U

CN213836729U - Retaining wall using waste concrete sleeper

Info

Publication number: CN213836729U
Application number: CN202022611285.6U
Authority: CN
Inventors: 魏少伟; 申文军; 蔡德钩; 刘�英; 叶阳升; 丁国富; 姚建平; 安旭; 吕宋; 李战林; 曹渊东; 温志成; 李吉亮; 王刘进; 石越峰; 张世祥; 张戈; 刘瑞; 叶晓宇; 李斯
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS; Beijing Tieke Special Engineering Technology Co Ltd; China Railway Beijing Group Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS; Beijing Tieke Special Engineering Technology Co Ltd; China Railway Beijing Group Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-30
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to a retaining wall using waste concrete sleepers, which is cut along the length direction to form sleeper blocks, and comprises a grouted foundation and a grouted retaining wall, wherein the grouted foundation and the grouted retaining wall are formed by laying the sleeper blocks; the thickness direction of the grouted foundation is that three rows of sleeper blocks are parallel along the width direction, and the height of the grouted foundation is not less than 0.8 m; if the height of the grouted retaining wall is not higher than 1m, two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the grouted retaining wall; if the height of the grouted retaining wall is higher than 1m, three rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is not higher than 1m, and two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is higher than 1 m. The utility model discloses a barricade is built and is adopted discarded concrete sleeper, reduces the use of slice stone, lump stone or concrete material, reaches waste utilization, green energy-conserving purpose, reduces engineering cost. The retaining wall construction of the waste concrete sleeper is more efficient and faster, and the construction time is greatly shortened compared with a cast-in-place concrete retaining wall and the like.

Description

Retaining wall using waste concrete sleeper

Technical Field

The utility model relates to a barricade construction technical field especially relates to an use barricade of useless concrete sleeper.

Background

At present, the existing quantity of the waste concrete sleepers of the railway is large, and the sleepers are stored in a large station along the line in a centralized mode or in scattered mode on two sides of the line, so that a plurality of problems are caused. If the waste concrete sleepers occupy a large amount of space of a station yard, the transportation organization is influenced; old sleepers scattered and stored in the station influence the station appearance and the station operation and influence the personal safety of the station operation. The waste concrete sleeper belongs to solid waste, and the waste concrete sleeper becomes one of the problems influencing the environment along with the enhancement of the global social environment consciousness and the increase of the national environment governing strength. Therefore, the reasonable and proper utilization of the waste concrete sleeper is an important problem which needs to be urgently solved. The waste concrete sleeper is applied to the railway retaining wall, so that solid waste can be sold, freight resources can be emptied, the surrounding environment can be optimized, the exploitation and processing of coarse aggregates can be saved, and the problem of environmental pollution is fundamentally solved. Therefore, the application of the waste concrete sleeper to the construction of the retaining wall structure has good popularization and application prospects.

The retaining wall is a structure for supporting roadbed filling soil or hillside soil body and preventing the filling soil or the soil body from deforming and destabilizing. The wall materials can be divided into stone retaining walls, concrete retaining walls, reinforced concrete retaining walls, steel plate retaining walls and the like. The existing retaining wall is made of materials such as stone sheets, block stones or concrete, which is not favorable for energy conservation and environmental protection, wastes resources and increases the engineering investment.

SUMMERY OF THE UTILITY MODEL

The defect to current barricade, the utility model provides an use barricade of useless concrete sleeper builds the barricade to utilizing useless concrete sleeper, effectively solves the wasting of resources problem of the utilization problem of useless concrete sleeper and current barricade.

In order to achieve the purpose, the utility model provides a retaining wall using waste concrete sleepers, which comprises a grouted foundation and a grouted retaining wall, wherein the grouted foundation is formed by waste concrete sleeper blocks;

the thickness direction of the grouted foundation is that three rows of sleeper blocks are parallel along the width direction, and the height of the grouted foundation is not less than 0.8 m; if the height of the grouted retaining wall is not higher than 1m, two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the grouted retaining wall; if the height of the grouted retaining wall is higher than 1m, three rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is not higher than 1m, and two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is higher than 1 m.

Further, the sleeper block is a sleeper block which is cut into a length of 500mm along the length direction of the sleeper.

Furthermore, when the sleeper blocks on the same layer of the grouted foundation and the grouted retaining wall are arranged and built, mortar is firstly smeared on the adjacent side surfaces, then the sleeper blocks are arranged and are forcibly extruded downwards and the side surfaces to ensure that mortar joints are compacted and the masonry is tightly attached; setting grout among all layers of sleeper blocks to be full, and pointing to be tight; jointing the grouted foundation and the grouted retaining wall and plastering mortar.

The above technical scheme of the utility model has following profitable technological effect:

(1) the utility model discloses a barricade is built and is adopted discarded concrete sleeper, reduces the use of slice stone, lump stone or concrete material, reaches waste utilization, green energy-conserving purpose, reduces engineering cost.

(2) The utility model discloses useless concrete sleeper is built the barricade construction and is high-efficient swift more, reduces the engineering time by a wide margin with cast-in-place concrete barricade etc. compares.

(3) The utility model discloses the needle barricade height is low, and is small, is suitable for less retaining engineering. On the one hand, the strength of the retaining wall meets the requirements, and on the other hand, the utilization rate of the waste concrete sleeper is improved.

Drawings

FIG. 1 is a schematic view of the position of a retaining wall of a waste concrete sleeper;

FIG. 2 is a schematic view of a retaining wall structure of a waste concrete sleeper; wherein (a) is a cross-sectional view of the retaining wall of 2.8 m; (b) is a cross-sectional view of the retaining wall of 1.8 m;

fig. 3 is a schematic illustration of a sleeper cut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The utility model provides an use the structural style of the railway retaining wall that old and useless concrete sleeper was built.

One way is to use the waste concrete sleepers as the main construction material of the retaining wall and mortar as the bonding material to bond the waste concrete sleepers into a whole. The retaining wall position of the waste concrete sleeper is shown in figure 1, and the retaining wall structure is shown in figure 2, and the retaining wall structure has two structural forms. In the figure 2, the waste concrete sleeper needs to be cut, sleeper blocks are arranged in layers along the longitudinal direction of a slope body and are built by mortar and coated, and a retaining wall foundation is built by waste concrete sleeper blocks. The height of the retaining wall can be 1.8m or 2.8m, and can be adjusted according to the actual situation, wherein the height of the grouted sleeper foundation is 0.8m, and drain holes are arranged at intervals of certain height (2 m in the figure). The water drainage holes are phi 100PVC, and three layers of geotextile are wrapped outside the water filtering port and are outwards inclined by 4 percent.

The retaining wall is high in structural strength and suitable for retaining walls with high heights, for example, when the height is required to be more than 1m above the bottom surface, the high strength needs to be guaranteed, three rows of sleeper blocks are arranged in parallel in the width direction in the thickness direction of a grouted foundation, and the height of the grouted foundation is not less than 0.8 m. If the height of the grouted retaining wall is not higher than 1m, two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the grouted retaining wall; if the height of the grouted retaining wall is higher than 1m, three rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is not higher than 1m, and two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is higher than 1 m.

The construction process of the retaining wall mainly comprises two steps, wherein the first step is to cut the waste concrete sleeper; and step two, building the waste concrete sleeper.

1. Cutting of waste concrete sleeper

The concrete sleeper in China is divided into a type I, a type II and a type III. The length of the type I or type II concrete sleeper is 2.5m, and the length of the type III concrete sleeper is 2.6 m. The cross section is trapezoidal, and is big end down, is favorable to increasing the sleeper and supports the area. At present, the II type concrete sleeper is the main type sleeper in China. The concrete strength grade of the type II concrete sleeper is C58, the height of the section under the rail is 20.2cm, the height of the section in the middle is 16.5cm, the width of the section at the end part is 29.45cm, the width of the section under the rail is 27.5cm, and the width of the section in the middle is 25 cm.

Taking a type II concrete sleeper as an example, a special cutting device is used for transversely cutting the waste concrete sleeper into four cutters to form sleeper blocks with the length of 5 sections being 500mm, and the cutter is shown in the following figure 3.

2. Sleeper masonry of waste concrete

The method comprises the following steps:

(1) and determining the excavation position of the foundation through measurement, and building the foundation.

(2) Mixing mortar on site; the lowest strength grade of the mortar is M10, and the lowest strength grade of the cement mortar in the water-immersed and severe cold areas is M15.

(3) And (5) performing mortar masonry by using the cut waste concrete sleeper blocks. The construction is carried out layer by layer according to the design requirement, the mortar is mixed on site, the construction workability is required to be good, the full mortar sitting among sleeper blocks of each layer is ensured, and the pointing is dense. When the side faces of the built sleeper blocks are arranged and built, mortar is firstly smeared on the adjacent side faces, then the sleeper blocks are built, and the mortar is forcibly extruded downwards and towards the side faces, so that mortar joints are compacted, and the masonry is tightly attached.

In the building process, settlement joints are arranged at intervals of 10-15m, water drainage holes are longitudinally arranged at intervals of 2-3m and vertically arranged at intervals of 2m in the wall body of the retaining wall in a staggered manner; the width of a settlement joint of the retaining wall is 3cm, a foam board or a wood board with the thickness of 3cm is clamped in the joint during construction, and the wood board or the foam board is drawn out after the construction.

(4) And after the masonry is finished, removing impurities on the wall surface, pointing, and plastering mortar, wherein the strength grade of the plastering mortar is M10, and the thickness is 10-20 mm.

And (5) performing watering maintenance after construction.

To sum up, the utility model relates to a retaining wall using waste concrete sleepers, the sleepers are cut along the length direction to form sleeper blocks, and the retaining wall comprises a grouted foundation and a grouted retaining wall which are formed by the sleeper blocks; the thickness direction of the grouted foundation is that three rows of sleeper blocks are parallel along the width direction, and the height of the grouted foundation is not less than 0.8 m; if the height of the grouted retaining wall is not higher than 1m, two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the grouted retaining wall; if the height of the grouted retaining wall is higher than 1m, three rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is not higher than 1m, and two rows of sleeper blocks are arranged in parallel along the width direction in the thickness direction of the part of the grouted retaining wall, which is higher than 1 m. The utility model discloses a barricade is built and is adopted discarded concrete sleeper, reduces the use of slice stone, lump stone or concrete material, reaches waste utilization, green energy-conserving purpose, reduces engineering cost. The retaining wall construction of the waste concrete sleeper is more efficient and faster, and the construction time is greatly shortened compared with a cast-in-place concrete retaining wall and the like.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A retaining wall using waste concrete sleepers is characterized in that the sleepers are cut along the length direction to form sleeper blocks, and the retaining wall comprises a grouted foundation and a grouted retaining wall, wherein the grouted foundation and the grouted retaining wall are formed by the sleeper blocks in a built mode;

2. The retaining wall using the waste concrete sleepers of claim 1 wherein the sleeper blocks are 500mm in length.

3. The retaining wall using waste concrete sleepers according to claim 1 or 2, wherein the grouted foundation and the grouted retaining wall have settlement joints arranged every 10 to 15m in the length direction.

4. The retaining wall using the used concrete sleeper as claimed in claim 3, wherein the settlement joint is 3cm wide.

5. The retaining wall using the waste concrete sleepers as in claim 3, wherein the retaining wall body is vertically provided with drain holes every 2 to 3m and every 0.8 to 1.2m, and the drain holes are vertically staggered.

6. The retaining wall using the waste concrete sleepers as in claim 5, wherein the drainage holes are phi 100PVC pipes, and three layers of geotextiles are wrapped outside the drainage ports of the PVC pipes and are inclined towards the outside of the retaining wall.

7. The retaining wall using waste concrete sleepers according to claim 1 or 2, wherein the mortar strength grade used for the grouted foundation and the grouted retaining wall is not less than M10, and the cement mortar strength grade in a submerged and severe cold area is not less than M15.