Integral ballast bed and tunnel bottom disease control method based on combined support and grouting formwork

A technology of disease control and integral ballast bed, which is applied to roads, tracks, ballast layers, etc., can solve the problems of difficulty in controlling the fluidity of slurry, affecting the support effect of inserted steel plates, and the lack of tightness of the steel plates, so as to improve the flow of slurry and The reinforcement effect is not easy to control, fast and efficient grouting to reinforce the diseased area, and the effect of improving adaptability

Active Publication Date: 2018-01-30
CHINA RAILWAY NO 3 GRP CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most cases, the use of ordinary steel plates as temporary supports has problems such as small thickness of the steel plates, inconvenient insertion construction, loose bite between the steel plates, and easy extrusion of the steel plates, which affect the support effect of the inserted steel plates
[0008] Furthermore: the currently commonly used grouting construction methods are all constructed in water ditches and side ditches, and the grouting in the contact area between the ballast bed and the tunnel bottom, the inverted arch or its filling area is not targeted; the fluidity of the grout in the grouting process It is difficult to control, especially in some water-rich areas, the grout flows freely during the grouting process, which can not guarantee the grouting effect, but also pollutes the working environment, resulting in waste of grout

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integral ballast bed and tunnel bottom disease control method based on combined support and grouting formwork
  • Integral ballast bed and tunnel bottom disease control method based on combined support and grouting formwork
  • Integral ballast bed and tunnel bottom disease control method based on combined support and grouting formwork

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In the present invention, the ballast bed in the diseased section is firstly supported by the combined steel plate support 3, and then the grouting formwork 4 is installed on both sides of the ballast bed in the diseased section to control the disease of the ballast bed and the tunnel bottom.

[0052] The structure of the combined steel plate support 3 is as follows Figure 4 , 5 As shown, it includes an upper layer steel plate 31 and a lower layer steel plate 32 with the same length connected. The upper layer steel plate 31 includes two small steel plates with the same shape and size. , The welding adopts groove welding, and the edges of the two small steel plates and the lower steel plate are aligned and welded. The upper surface of the upper steel plate 31 and the lower surface of the lower steel plate 32 are drilled with connected sawtooth grooves 33. The main function of the sawtooth grooves 33 is to realize the occlusion of the combined steel plate with the top, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of settlement control of the overall ballast bed of existing long railway tunnels and the construction field of grouting reinforcement at the bottom of the tunnel. The overall ballast bed and tunnel bottom disease treatment method of support and grouting formwork adopts the construction method of first using the combined steel plate support to support the diseased section of the ballast bed, and then installing grouting formwork on both sides of the diseased section of the ballast bed to carry out disease remediation on the ballast bed and tunnel bottom . The invention organically combines the support in the early stage of disease control construction with the improvement of the grouting effect in the later stage, slows down the impact of the broken ring of the ballast bed and the bottom plate before and after the train passes, effectively fills the broken area at the bottom of the tunnel, and supports the combined steel plate to ensure The complete wrapping of the grout and the supporting steel plate achieves the purpose of quickly supporting the ballast bed in the damaged area at the bottom of the tunnel, controlling the development speed of the disease, and fast and efficient grouting to reinforce the diseased area.

Description

technical field [0001] The invention belongs to the field of settlement control of the integral ballast bed of existing long railway tunnels and the construction field of grouting reinforcement at the bottom of the tunnel, and in particular relates to a grouting reinforcement construction method for disease control of the integral track bed of the railway and the tunnel bottom. Background technique [0002] The integral ballast bed of railway tunnels has the advantages of stable operation, good line smoothness, uniform rigidity, strong durability and small maintenance engineering, and is more and more used in long-distance railway tunnels and urban rail transit in my country. [0003] However, with the passage of tunnel operation time, the increase of railway traffic, the repeated dynamic load of trains, the influence of groundwater and many other factors, the overall ballast bed has problems such as the separation of the ballast bed and the floor, the mud and mud of the ball...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B27/02
Inventor 张俊兵郑保才胡国伟孙伯乐李达昌薛泽民苏雅拉图
Owner CHINA RAILWAY NO 3 GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products