CN210766870U

CN210766870U - Anti-seismic buffer device for retaining wall

Info

Publication number: CN210766870U
Application number: CN201921737499.9U
Authority: CN
Inventors: 董�成
Original assignee: Hebei University of Water Resources and Electric Engineering
Current assignee: Hebei University of Water Resources and Electric Engineering
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-16
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a retaining wall antidetonation buffer mainly relates to the engineering construction field. Including retaining wall and inverted filter, inverted filter sets up the back at the retaining wall, be provided with the shock attenuation buffer layer between retaining wall and the inverted filter, be equipped with a plurality of elasticity components in the shock attenuation buffer layer. The beneficial effects of the utility model reside in that: set up installation one deck shock attenuation buffer layer between retaining wall and inverted filter, improve the shock resistance of retaining wall, practice thrift construction cost.

Description

Anti-seismic buffer device for retaining wall

Technical Field

The utility model relates to an engineering construction field specifically is a retaining wall antidetonation buffer.

Background

The retaining wall is a structure for supporting roadbed filling or hillside soil and preventing the filling or soil from deforming and destabilizing. In the cross section of the retaining wall, the part which is directly contacted with the supported soil body is called a wall back; the part facing the wall back and being empty is called the wall surface; the part directly contacting with the foundation is called a substrate; the top surface of the wall opposite the base is called the wall top; the front end of the base is called a wall toe; the rear end of the base is called a butt. One of the functions is as follows: the road shoulder wall or the embankment wall is arranged below the high-fill embankment or the steep slope embankment, so that the roadbed slope or the base can be prevented from sliding, the stability of the roadbed is ensured, meanwhile, the soil filling slope toe can be contracted, the soil filling quantity is reduced, the removal and the occupied area are reduced, and the existing buildings close to the line are protected.

In high-intensity earthquake areas, the retaining wall can not buffer and absorb energy under the action of high-intensity earthquakes, huge earthquake force directly acts on the retaining wall, so that the use of the retaining wall is limited, in order to meet the requirement of the anti-seismic stability of the retaining wall, the size of the retaining wall is very large, the height of the retaining wall is low, the factors seriously restrict the use of the retaining wall in the high-intensity earthquake areas, other more expensive engineering measures are adopted for processing, the construction cost is increased, and the anti-seismic performance of the retaining wall can not be ensured due to the fact that no buffer mechanism is arranged in the retaining wall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a retaining wall antidetonation buffer, it sets up installation one deck shock attenuation buffer layer between retaining wall and inverted filter, improves the shock resistance of retaining wall, practices thrift construction cost.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

the utility model provides a retaining wall antidetonation buffer, includes retaining wall and reversed filter, the reversed filter sets up the back at the retaining wall, be provided with the shock attenuation buffer layer between retaining wall and the reversed filter, be equipped with a plurality of elasticity components in the shock attenuation buffer layer.

Further, the shock attenuation buffer layer includes fixed frame, and is a plurality of elasticity component sets up in fixed frame along vertical direction, the outer parcel of fixed frame has the geotechnological cloth that permeates water.

Furthermore, the elastic component comprises two sleeve bases, the sleeve bases are arranged on two side walls inside the fixing frame, a loop bar is arranged between the sleeve bases, two ends of the loop bar are respectively located in the sleeve bases on two sides and are in sliding connection with the sleeve bases, and a spring is arranged between the end face of the loop bar and the inner end face of the sleeve base.

Furthermore, a buffer block is arranged at the bottom of the fixing frame.

Contrast prior art, the beneficial effects of the utility model reside in that:

be equipped with the shock attenuation buffer layer between retaining wall and the inverted filter, be equipped with a plurality of elasticity components in the shock attenuation buffer layer, utilize the elasticity of elasticity component, make the shock attenuation buffer layer play the function of deformation energy-absorbing in the earthquake, there is certain buffering effect to the huge effort that the retaining wall produced when acting on the earthquake, shock attenuation buffer layer warp and automatic recovery after the earthquake, unload the effort of earthquake to the retaining wall, the energy-absorbing effect of shock attenuation buffer layer can reduce the structure size of retaining wall, thereby practice thrift the engineering investment of retaining wall, can also expand its application range in high-intensity earthquake district, the structure has construction convenience, it is effectual to cushion the energy-absorbing, the energy-absorbing deformation automatic recovery, and characteristics such as construction cost low.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a schematic structural diagram of the shock absorbing buffer layer of the present invention.

Reference numerals shown in the drawings:

1. a retaining wall; 2. a reverse filtering layer; 3. a damping buffer layer; 4. an elastic member; 41. a sleeve base; 42. a loop bar; 43. a spring; 5. a fixing frame; 6. water-permeable geotextile; 7. and a buffer block.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

The utility model relates to a retaining wall antidetonation buffer, the major structure includes retaining wall 1 and inverted filter 2, inverted filter 2 sets up at the back of retaining wall 1, and retaining wall 1 refers to the supporting road bed filling soil or hillside soil body, prevents the structure of filling soil or soil body deformation unstability, and the setting of inverted filter 2 prevents that the soil in dyke dam body or the ground is taken away when the infiltration water flows out to can prevent the emergence of piping and flowing soil, be provided with shock attenuation buffer layer 3 between retaining wall 1 and inverted filter 2, be equipped with a plurality of elastic component 4 in shock attenuation buffer layer 3, utilize a plurality of elastic component 4 in shock attenuation buffer layer 3 to absorb the effort that the earthquake produced, and elastic component 4 can automatic recovery after receiving earthquake effort deformation, therefore can used repeatedly, reply earthquake's recurrence, the energy-absorbing effect of shock attenuation buffer layer 3 can reduce the huge earthquake power that the earthquake takes place to retaining wall 1 and produce greatly, thereby can effectively reduce retaining wall 1's structural dimension, so can effectively practice thrift retaining wall 1's engineering investment, expand its application range in high intensity seismic region simultaneously, shock attenuation buffer layer 3 also has retaining wall 1 and strains drainage function against in addition.

Preferably, shock attenuation buffer layer 3 includes fixed frame 5, and fixed frame 5 can adopt anticorrosive metal mesh or the preparation of compound geotechnological material, and the installation of the whole shock attenuation buffer layer 3 of being convenient for is a plurality of elasticity component 4 sets up in fixed frame 5 along vertical direction, makes the direction of force of the atress direction of elasticity component 4 the same with the horizontal force direction of earthquake, guarantees the energy-absorbing effect of elasticity component 4, fixed frame 5 outer parcel has the geotechnological cloth 6 that permeates water, and the geotechnological cloth that permeates water plays the effect of protection to fixed frame and inside elasticity component, needs to satisfy the rate of permeating water requirement of backwash filter 2 to in time discharge water.

Preferably, the elastic member 4 includes two sleeve bases 41, the sleeve bases 41 are symmetrically disposed on two side walls inside the fixing frame 5, a loop bar 42 is disposed between the sleeve bases 41, the cross section of the loop bar 42 is in an i shape, two ends of the loop bar 42 are respectively disposed in the sleeve bases 41 on two sides and slidably connected with the sleeve bases 41, and it is ensured that two ends of the loop bar 42 do not slide out of the sleeve bases 41, a spring 43 is disposed between an end surface of the loop bar 42 and an inner end surface of the sleeve base 41, the elastic stiffness of the spring 43 is determined by calculation and analysis according to the seismic intensity and the thickness thereof, but the stiffness needs to satisfy the requirement that the active soil pressure of the soil retaining wall 1 does not generate large deformation under normal working conditions, and simultaneously has an automatic recovery function of elastic deformation after earthquake, the outer surfaces of the sleeve bases 41 and the loop bar 42 are treated for corrosion protection due to the thickness thereof, when further protecting inside spring 43, increase of service life, reduce cost, and loop bar 42 both ends all are equipped with sleeve base 41, can effectively absorb the vibrations of shock attenuation buffer layer 3 both sides, better unloading earthquake to the effort of shock attenuation buffer layer 3.

Preferably, fixed frame 5 bottom is equipped with buffer block 7, and buffer block 7 adopts the rubber material, fills in the bottom of fixed frame 5, and the edge side of buffer block 7 and the medial surface contact of fixed frame 5 rely on the elastic characteristic of rubber, makes the bottom of shock attenuation buffer layer 3 have good buffering energy-absorbing effect, further guarantees shock attenuation buffer layer 3's shock attenuation cushioning effect.

The retaining wall 1, the inverted filter layer 2 and the damping buffer layer 3 are manufactured and built according to the measurement standard and the process standard, the elastic member 4 consisting of the sleeve rod 42 and the sleeve base 41 in the damping buffer layer 3 can effectively absorb the energy on two sides of the damping buffer layer 3, the acting force of an earthquake on the retaining wall 1 can be better removed, the retaining wall 1 does not need to be designed into a larger size, the construction cost is reduced, and the engineering progress is accelerated.

Claims

1. The utility model provides a retaining wall antidetonation buffer, includes retaining wall (1) and reversed filter (2), reversed filter (2) set up the back at retaining wall (1), its characterized in that: be provided with shock attenuation buffer layer (3) between retaining wall (1) and inverted filter (2), be equipped with a plurality of elasticity members (4) in shock attenuation buffer layer (3).

2. A retaining wall anti-seismic buffering device according to claim 1, characterized in that: shock attenuation buffer layer (3) are including fixed frame (5), and are a plurality of elasticity component (4) set up in fixed frame (5) along vertical direction, fixed frame (5) outer parcel has geotechnological cloth (6) that permeates water.

3. A retaining wall anti-seismic buffering device according to claim 2, characterized in that: elasticity component (4) include two sleeve bases (41), sleeve base (41) set up on the inside both sides wall of fixed frame (5), be equipped with loop bar (42) between sleeve base (41), loop bar (42) both ends are located sleeve base (41) of both sides respectively and with sleeve base (41) sliding connection, be equipped with spring (43) between loop bar (42) terminal surface and sleeve base (41) interior terminal surface.

4. A retaining wall anti-seismic buffering device according to claim 2, characterized in that: the bottom of the fixed frame (5) is provided with a buffer block (7).