CN201459739U

CN201459739U - Cutting slope support reinforcing structure

Info

Publication number: CN201459739U
Application number: CN200920079392XU
Authority: CN
Inventors: 李庆海; 蒋楚生; 兰小平
Original assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Current assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2010-05-12
Anticipated expiration: 2019-03-05

Abstract

The utility model discloses a cutting slope support reinforcing structure, which comprises a plurality of U-shaped trough sections (10) which are continuously arranged in the extension direction of a cutting, wherein reinforcing piles (20) are arranged inside the soil body below the U-shaped trough sections (10), and the top of the reinforcing piles (20) is fixedly connected with a soleplate (11) of the U-shaped trough sections (10) into a whole body. The cutting slope support reinforcing structure has the advantages that being applied to the reinforcement of the support and groundwork of the rock cutting in the soft soil, Mollisol, high underground water level and the swelling soil districts, the sedimentation problem of the ordinary U-shaped trough structure in the soft soil and the Mollisol and the protrusion problem of the ordinary U-shaped trough structure in the high underground water level and the swelling soil districts can be overcome. The cutting slope support reinforcing structure has the advantages of simple and harmonious structure, easy construction and small land occupation area, and enlarges the application range of the U-shaped trough structure.

Description

Cut slope props up retaining and reinforces structure

Technical field

The retaining that the utility model relates in the civil engineering is reinforced structure, and a particularly a kind of retaining that is used for the cut slope engineering is reinforced structure.

Background technology

The scale and the speed of the development of China's track traffic in recent years occupy prostatitis, the world, have more than 10 city to have the urban track traffic operation at present, and some city Hot work in progress are built, and more city is also in the planning track traffic.Because the intensive soil of road costliness in the city, so city rail engineering and municipal engineering at the two ends of wearing urban road and subway discrepancy section line down, are mostly adopted the U type groove structure to reinforce as a retaining of cut slope and are constructed.Especially in the city underground design, connect with the suitable of underground interval solid concrete roabed, save the soil, reduce and remove, all used the U type groove structure basically for keeping.

The advantage that the U type groove structure has is simple in structure, be easy to construct, floor space is little.But, being subjected to concrete geology condition effect, the scope of application of U type groove structure is restricted.For example, weak soil, soft soil series compressibilty height, the soil body that intensity is low apply engineering and easily produce sedimentation on this soil body, thereby the use in the engineering of back is built up in influence; Phreatic high and dilatancy soil all exist the problem of U-lag come-up or " protuberance ".At present, propping up of these a few class side slopes kept off reinforcing adopt antislide pile, antiskid barricade usually, the land used of a plated construction is more, and the latter does not adopt the U-lag structure substantially, make that base treatment and side slope disposal engineering quantity and land used are bigger, and operation is loaded down with trivial details.

The utility model content

Technical problem to be solved in the utility model provides a kind of cut slope and props up retaining reinforcing structure, this retaining is reinforced structure and can be used under special ground geological conditionss such as weak soil, mollisol, expansive soil, and avoids the U type groove structure to produce problems such as sedimentation or come-up effectively.

The technical scheme that its technical problem that solves the utility model adopts is: the utility model cut slope props up retaining and reinforces structure, comprise the U type groove sections that is provided with continuously along the cutting bearing of trend, it is characterized in that: be provided with in the soil body of described U type groove sections below and reinforce stake, the stake top of reinforcing stake is fixed with the base plate of U type groove sections to be one.

The beneficial effects of the utility model are, be used for a retaining and a ground stabilization of the geotechnical slope of weak soil, mollisol, phreatic high and swelled ground area, overcome the settlement issues of common U type groove structure on weak soil and mollisol and the problem of phreatic high and swelled ground area anti-" protuberance ".The advantage that have simple structure, coordinate, be easy to construct, floor space is little has been expanded the usage space of U-lag structure.

Description of drawings

This manual comprises following five width of cloth accompanying drawings:

Fig. 1 is that the utility model cut slope props up the longitudinal plane structure schematic diagram that retaining is reinforced structure;

Fig. 2 is that the utility model cut slope props up the cross-sectional configuration schematic diagram that retaining is reinforced structure;

Fig. 3 is the sectional view along A-A line among Fig. 2;

Fig. 4 is that the utility model cut slope props up the cross-sectional configuration schematic diagram that retaining is reinforced structure;

Fig. 5 is the sectional view along B-B line among Fig. 2;

Component shown in the figure, toponym and pairing mark: U type groove sections 10, base plate 11, reinforcing stake 20, pile cover 21, hat beam 22.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

With reference to Fig. 1, cut slope props up retaining and reinforces structure, comprises the U type groove sections 10 that is provided with continuously along the cutting bearing of trend, is provided with in the soil body of described U type groove sections 10 belows to reinforce stake 20, and the stake top that reinforces stake 20 and the base plate of U type groove sections 10 11 are fixed to be one.Reinforcing stake 20 overcomes the sedimentation of U type groove under weak soil and the mollisol geology condition by pile perimeter resistance and stake end end resistance; Overcome phreatic high and swelled ground area " protuberance " problem by pile body deadweight, pile perimeter resistance and the U type groove deadweight that is connected thereon.

With reference to Fig. 1, Fig. 2 and Fig. 4, described reinforcing stake 20 sets in a row at interval along the length direction of U type groove sections 10.According to the concrete condition of engineering, described reinforcing stake 20 should be provided with at least two rows at interval along the width of U type groove sections 10 usually.Fig. 2 and Fig. 3, Fig. 4 and Fig. 5 show U type groove sections 10 and two kinds of connected modes of reinforcing stake 20 respectively, and the base plate of the pile cover 21 of described reinforcing stake 20 by its top and U type groove sections 10 11 is fixed to be one; Perhaps be provided with on the stake top that reinforces stake 20 and reinforce the hat beams 22 that stake 20 connects with adjacent, reinforcing the base plate 11 of stake 20 by hat beam 22 and U type groove sections 10 fixed is one.Described reinforcing stake 20 can be adopted bored pile, digging hole filling pile or driven pile.

The above the utility model cut slope that just explains through diagrams props up some principles that retaining is reinforced structure, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.

Claims

1. cut slope props up retaining and reinforces structure, comprise the U type groove sections (10) that is provided with continuously along the cutting bearing of trend, it is characterized in that: be provided with in the soil body of described U type groove sections (10) below and reinforce stake (20), the stake top of reinforcing stake (20) is fixed with the base plate (11) of U type groove sections (10) to be one.

2. cut slope as claimed in claim 1 props up retaining and reinforces structure, it is characterized in that: described reinforcing stake (20) sets in a row at interval along the length direction of U type groove sections (10).

3. cut slope as claimed in claim 1 props up retaining and reinforces structure, it is characterized in that: described reinforcing stake (20) is provided with at least two rows at interval along the width of U type groove sections (10).

4. prop up retaining as claim 2 or 3 described cut slopes and reinforce structure, it is characterized in that: describedly reinforce that the pile cover (21) of stake (20) by its top and the base plate (11) of U type groove sections (10) are fixed to be one.

5. prop up retaining reinforcing structure as claim 2 or 3 described cut slopes, it is characterized in that: a described top that reinforces stake (20) is provided with the Guan Liang (22) that adjacent reinforcing stake (20) is connected, and it is one that reinforcing stake (20) is passed through Guan Liang (22) fixed with the base plate (11) of U type groove sections (10).

6. cut slope as claimed in claim 1 props up retaining and reinforces structure, it is characterized in that: what described reinforcing stake (20) was adopted is bored pile, digging hole filling pile or driven pile.