Road shoulder soil retaining structure

Abstract

The utility model provides a road shoulder soil retaining structure, which relates to the field of supporting structures, and comprises a flange plate, a beam rib column and a connecting beam, the flange plate is arranged at the top of the connecting beam, the beam rib column is arranged at the top of the connecting beam at one end of the flange plate, and a round cast-in-situ bored pile is arranged at the bottom of the connecting beam. The T-shaped soil retaining structure is formed by the flange plates, the beam rib columns and the connecting beams, the road shoulder soil retaining structure adopts the cast-in-situ bored piles as pile foundations, the construction process is very mature, the construction quality is controllable, and the built-in depth can be calculated according to a cantilever type soil retaining structure; the connecting beams are arranged at the tops of the pile foundations, so that the flange plates, the beam rib columns and other supporting units can be connected into an integral T-shaped road shoulder soil retaining structure, and the integrity and the stability of the supporting structure are enhanced; the T-shaped soil retaining structure above the ground can be poured through a formwork, the process is simple, and soil body backfilling and roadbed pavement construction within the roadbed range can be carried out after the concrete strength meets the design requirement.

Description

Technical Field

[0001] The utility model relates to the field of supporting structures, in particular to a road shoulder retaining structure. Background Art

[0002] For municipal road ditch projects, the design and construction of fill roadbed and fill slope largely determine the success or failure of the project quality, especially when the foundation bearing layer within the roadbed is weak and the bearing capacity is insufficient. Conventional gravity shoulder walls and buttress retaining walls and other measures require foundation treatment in advance, and their construction period and cost will increase significantly. Therefore, how to efficiently solve the bearing capacity problem and how to set up a reasonable upper retaining structure will have a significant impact on the fill roadbed and fill slope projects. Therefore, a T-type shoulder retaining structure is proposed. Utility Model Content

[0003] The purpose of the utility model is to solve the following problems existing in the prior art: to solve the problems of the existing shoulder retaining structure in fill roadbed and fill slope support projects, that is, when the foundation bearing capacity is insufficient or the fill height is large, the construction is cumbersome, the cost is high and the stability is not ideal.

[0004] In order to solve the problems existing in the prior art, the utility model provides a shoulder retaining structure, including a flange plate, a beam rib column and a connecting beam, characterized in that: a flange plate is provided on the top of the connecting beam, a beam rib column is provided on the top of the connecting beam at one end of the flange plate, and a circular bored cast-in-place pile is provided on the bottom of the connecting beam, and a T-shaped retaining structure is formed by the flange plate, the beam rib column and the connecting beam.

[0005] Furthermore, when there are weak layers or insufficient bearing capacity in the roadbed range, bottom circular bored piles can be used as the foundation of the shoulder retaining structure to provide bearing capacity for the top retaining structure. The pile diameter and pile spacing can be determined according to the fill height.

[0006] Furthermore, a T-type retaining structure is used for support within the top fill height range, and its cross-sectional stress characteristics can significantly reduce concrete costs.

[0007] Furthermore, the width of the flange plate of the T-type retaining structure is the unit retaining width, which is the unit width for force calculation.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. The shoulder retaining structure uses bored cast-in-place piles as the pile foundation. Its construction technology is very mature, the construction quality is controllable, and the embedding depth can be calculated according to the cantilever retaining structure;

[0010] 2. A connecting beam is set on the top of the pile foundation to connect various support units such as flange plates, beam rib columns, etc. into an integral T-shaped shoulder retaining structure to enhance the integrity and stability of the support structure;

[0011] 3. The T-type retaining structure above the existing ground can be cast by formwork, and the process is relatively simple. After the concrete strength reaches the design requirements, the soil backfilling and roadbed pavement construction within the roadbed range can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 3 It is a plan view of the utility model;

[0015] Figure numerals: 1. flange plate; 2. beam rib column; 3. connecting beam; 4. circular bored cast-in-place pile. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0018] Example 1

[0019] like Figure 1-3 As shown, a shoulder retaining structure includes a flange plate 1, a beam rib column 2 and a connecting beam 3, the top of the connecting beam 3 is provided with the flange plate 1, the top of the connecting beam 3 at one end of the flange plate 1 is provided with a beam rib column 2, and the bottom of the connecting beam 3 is provided with a circular bored cast-in-place pile 4, and a T-shaped retaining structure is formed by the flange plate 1, the beam rib column 2, the connecting beam 3 and the circular bored cast-in-place pile 4.

[0020] Working principle description: In fill roadbed and fill slope support projects, when the foundation bearing capacity is insufficient or the fill height is large, this T-type shoulder retaining structure formed by flange plate 1, beam rib column 2 and connecting beam 3 can be used. This structure adopts T-type retaining structure for support within the depth from above the ground to the roadbed, and circular bored cast-in-place piles 4 are used for pile foundation construction for the part below the existing ground, making full use of the stress characteristics of the T-type retaining structure and the action mechanism of shoulder soil pressure, giving full play to the bending characteristics of the beam rib column 2 structure, optimizing the concrete in the tensile zone of the conventional design rectangular rib column, and greatly reducing the concrete cost; at the same time, the width of the flange plate 1 is increased to increase the stress unit of the T-type retaining structure. The width of a single stress unit of the support structure can be reasonably determined according to the width of the flange plate 1.

[0021] The width of the flange plate 1 is the unit retaining width, which is the unit width for force calculation. When selecting, a conventional selection can be made in the prior art according to the needs.

[0022] The beam rib column 2 is mainly used to increase the bending resistance of the structure. When selecting, a conventional selection can be made in the existing technology according to the needs.

[0023] The connecting beam 3 is mainly used to connect the various supporting units into a whole to strengthen the integrity of the supporting structure. When selecting, a conventional selection can be made in the existing technology according to needs.

[0024] The circular bored pile 4 is mainly used for pile foundation construction below the existing ground. When selecting, a conventional selection can be made in the existing technology according to the needs.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A road shoulder retaining structure, comprising a flange plate (1), a beam rib column (2) and a connecting beam (3), characterized in that: A flange plate (1) is provided on the top of the connecting beam (3), a beam rib column (2) is provided on the top of the connecting beam (3) at one end of the flange plate (1), and a circular bored cast-in-place pile (4) is provided on the bottom of the connecting beam (3), and a T-shaped retaining structure is formed by the flange plate (1), the beam rib column (2) and the connecting beam (3).

2. A road shoulder retaining structure according to claim 1, characterized in that: When there is a weak layer or insufficient bearing capacity in the stratum within the roadbed range, the bottom circular bored cast-in-place pile (4) can be used as the foundation of the shoulder retaining structure to provide bearing capacity for the top retaining structure. The pile diameter and pile spacing can be determined according to the fill height.

3. A road shoulder retaining structure according to claim 1, characterized in that: A T-shaped retaining structure is used for support within the top fill height range, and its cross-sectional stress characteristics can significantly reduce concrete costs.

4. A road shoulder retaining structure according to claim 1, characterized in that: The width of the flange plate (1) of the T-shaped retaining structure is the unit retaining width, which is the unit width for force calculation.

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