Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Advanced grouting method for tunnel face of cement-rich rock stratum

A technology of advanced grouting and cement rock, which is applied in tunnels, tunnel linings, underground chambers, etc., can solve the problems of blocked construction progress, water gushing, mud gushing, and high construction costs in tunnels rich in cement rock, so as to improve construction efficiency and equipment Utilization rate, water inflow control, and the effect of improving construction efficiency

Active Publication Date: 2021-04-09
RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual construction process, problems such as water inrush are easily affected by geological influences, especially in water-rich areas, where water and mud gushing are prone to occur during construction, which seriously hinders the construction progress of cement-rich rock tunnels, and the construction cost is high

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for advanced grouting on the face of a tunnel in a cement-rich stratum, comprising the following steps:

[0030] (1) Carry out advanced geological forecasting and detect the fault fracture and groundwater location in front of the tunnel face in cement-rich strata;

[0031] (2) Carry out the grouting design for the face of the tunnel face in rich cement rock stratum according to the detected fault fracture and groundwater position in front of the tunnel face in rich cement rock stratum, and determine the target grouting reinforcement area;

[0032] (3) Set up monitoring points in the target grouting reinforcement area, and the monitoring points are used to monitor the grouting construction and the grouting curing effect;

[0033] (4) Spray concrete on the face of the operation and pour the grout-stop wall. The thickness of the grout-stop wall is determined according to experience and is related to the scope of the target grouting reinforcement area; Slurry hole...

Embodiment 2

[0047] A method for advanced grouting on the face of a tunnel in a cement-rich stratum, comprising the following steps:

[0048] (1) Carry out advanced geological forecasting and detect the fault fracture and groundwater location in front of the tunnel face in cement-rich strata;

[0049] (2) Carry out the grouting design for the face of the tunnel face in rich cement rock stratum according to the detected fault fracture and groundwater position in front of the tunnel face in rich cement rock stratum, and determine the target grouting reinforcement area;

[0050] (3) Set up monitoring points in the target grouting reinforcement area, and the monitoring points are used to monitor the grouting construction and the grouting curing effect;

[0051] (4) Spray concrete on the face of the operation and pour the grout-stop wall. The thickness of the grout-stop wall is determined according to experience and is related to the scope of the target grouting reinforcement area; Slurry hole...

Embodiment 3

[0067] A method for advanced grouting on the face of a tunnel in a cement-rich stratum, comprising the following steps:

[0068] (1) Carry out advanced geological forecasting and detect the fault fracture and groundwater location in front of the tunnel face in cement-rich strata;

[0069] (2) Carry out the grouting design for the face of the tunnel face in rich cement rock stratum according to the detected fault fracture and groundwater position in front of the tunnel face in rich cement rock stratum, and determine the target grouting reinforcement area;

[0070] (3) Set up monitoring points in the target grouting reinforcement area, and the monitoring points are used to monitor the grouting construction and the grouting curing effect;

[0071] (4) Spray concrete on the face of the operation and pour the grout-stop wall. The thickness of the grout-stop wall is determined according to experience and is related to the scope of the target grouting reinforcement area; Slurry hole...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides an advanced grouting method for a tunnel face of a cement-rich rock stratum. The advanced grouting method comprises the following steps that (1) advanced geological forecast is conducted; (2) the tunnel face of the cement-rich rock stratum is subjected to grouting design, and a target grouting reinforcement area is determined; (3) monitoring points are arranged in the target grouting reinforcement area; (4) a grouting stopping wall is poured, and advanced grouting hole positions and advanced pipe shed hole positions are designed; (5) advanced grouting and advanced pipe shed drilling operation are conducted; (6) advanced grouting liquid and advanced pipe shed grouting liquid are prepared; (7) advanced grouting construction is conducted; and (8) advanced pipe shed construction is conducted. According to the advanced grouting method for the tunnel face of the cement-rich rock stratum, the tunnel face is subjected to advanced grouting, effective reinforcement treatment is conducted, the construction risk is avoided, the construction efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering construction, in particular to an advanced grouting method for tunnel faces in rich cement rock formations. Background technique [0002] Tunnel projects are generally underwater, underground or in mountains. Compared with other construction projects, the construction of cement-rich tunnels has more stringent requirements for the design of most tunnel entrances, and its characteristic is high water pressure, so the construction process Permeability and invasiveness must be considered in the process. Mudstone is rich in clay minerals, which will make most of the strength of this rock lower. It is a kind of sedimentary rock that is easy to disintegrate, weak and expand. The rheology and swelling of mudstone are its main geological characteristics. It is because the mudstone itself has low strength and is rich in water, resulting in rheology. In the actual construction process, problems ...

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
IPC IPC(8): E21D11/10C04B28/14
CPCC04B28/144C04B2111/00724E21D11/105C04B14/06C04B7/02C04B14/104C04B18/08C04B22/00C04B18/141C04B7/32C04B24/122C04B22/062C04B22/147C04B22/14C04B24/383C04B24/281C04B24/18
Inventor 刘翔邓小卫刘飞翔谢晓波李建刘化平胥俊玮陈敏刘德安杨文国赵建斌彭学军阳军生汤宇胡晓方文应彭静段磊曾玉德王圣彭雨杨方星桦李强何林云程栋杨海龙凌涛
Owner RAILWAY NO 5 BUREAU GRP FIRST ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com