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

Method for TBM construction to pass through high-pressure water-rich alteration lens body

A lens and water-rich technology, which is applied in drainage, earthwork drilling, shaft equipment, etc., can solve problems such as tunnel collapse, TBM jamming, sudden mud gushing, etc.

Active Publication Date: 2021-03-16
CHINA RAILWAY TUNNEL GROUP CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-pressure water-rich alteration lens is likely to cause risks such as mud inrush, tunnel collapse, and TBM jamming during construction.

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
  • Method for TBM construction to pass through high-pressure water-rich alteration lens body
  • Method for TBM construction to pass through high-pressure water-rich alteration lens body
  • Method for TBM construction to pass through high-pressure water-rich alteration lens body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: The method of altering the lens body through high-pressure water-rich water in TBM construction

[0041] In August 2019, the TBM construction of the Gaoligongshan Tunnel on the Baoshan-Ruili section of the Dali-Ruili Railway encountered high-pressure rich water alteration lenses. The high pressure at the arch caused the surrounding rock to converge, causing the TBM to jam. At the same time, mud gushing and water gushing occurred at the end of the TBM shield, causing partial burial of the TBM equipment. Measures such as adding a roundabout pilot pit behind the main tunnel of the TBM were used to deal with it. The specific steps are as follows (see figure 1 , figure 2 ):

[0042] 1. Set up pilot pit

[0043] After TBM excavation encounters high-pressure rich water alteration lens or surge, stop TBM excavation and open a pilot pit at the rear of the equipment. The distance between the pilot pit and the main tunnel line is 30m. The opening of the pilot pit is...

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
Depthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for TBM construction to pass through a high-pressure water-rich alteration lens body. The method is used for processing TBM jamming caused by the high-pressure water-rich alteration lens body and mainly comprises the following steps that a circuitous pilot tunnel is newly and additionally arranged to pass through the high-pressure water-rich alteration lens body to drain water in advance; drain water at high positions of a high-position adit and a high-position working chamber; the pilot tunnel detours to a main tunnel to complete lens body excavation treatment; and shield area expanding excavation assists the TBM to get out of trouble, and TBM construction is assisted to pass through the high-pressure water-rich alteration lens body. The method for TBM construction to pass through the high-pressure water-rich alteration lens body is combined with advanced geological prediction, so that high-pressure water-rich alteration lens treatment is completed inadvance, and the risks of TBM jamming, mud inrush and water gushing are prevented.

Description

technical field [0001] The invention relates to the technical field of TBM construction, in particular to a method for altering a lens body through high-pressure rich water in TBM construction. Background technique [0002] tunnel boring machine ( Tunnel Boring Machine , TBM) is a comprehensive equipment that uses mechanical rock breaking, slag removal and support for continuous operation. [0003] TBM construction has the following advantages: 1. High excavation efficiency: continuous operation can ensure one-stop operation of rock breaking, slag removal and support; especially in long-distance construction in stable surrounding rock, the advantages are more obvious; 2. Excavation Less over-excavation, better construction quality: less over-excavation, smooth inner wall, no concave-convex phenomenon, lower support engineering volume, and lower engineering cost; 3. Small disturbance to rock: it can improve the construction conditions of the excavation surface; the surroundi...

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): E21D9/06E21D9/00E21D11/10E21D20/00E21D11/18E21D11/15E21F16/02
CPCE21D9/06E21D9/0607E21D9/006E21D9/001E21D11/10E21D20/00E21D11/18E21D11/152E21F16/02Y02E10/20
Inventor 王亚锋陈阳马亮胡新朋邢迅轲郑清君曹耀祖李福才宿源麟刘飞车大兵李红
Owner CHINA RAILWAY TUNNEL GROUP 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