A protection method and device for measuring cables of tunnel monitoring components by drilling and blasting method
A technology for measuring cables and tunnel monitoring, which is applied in the direction of cable installation in tunnels, cable installation, tunnels, etc. It can solve problems affecting data collection, damage, and difficult connection of measurement cables, and achieve the effect of avoiding waste and avoiding damage
Active Publication Date: 2022-03-29
CHINA RAILWAY TUNNEL GROUP CO LTD +2
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The tunnel adopts the drilling and blasting method for construction. The rocks and shock waves generated by the tunnel blasting will easily damage the measuring cables of the monitoring components. Provide the surrounding rock stability evaluation data in time, and in serious cases, the monitoring components will lose their function
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] This embodiment discloses a protection method for measuring cables of tunnel monitoring components by drilling and blasting method. The selection of monitoring components is determined according to the tunnel monitoring items. If the surrounding rock pressure is measured, the pressure box is selected; For deformation, steel strain gauges are used.
[0023] The above-mentioned protection method for measuring cables used for drilling and blasting tunnel monitoring components adopts the following steps:
[0024] Step 1. Set the monitoring element 9 on the surrounding rock, and make one end of the horizontal tube of the "L"-shaped protection pipe 11 vertical and fix it on the steel arch frame of the initial tunnel at the position of the monitoring element 9, "L" The vertical tube of the protective tube 11 is arranged along the longitudinal ...
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
Login to View More Abstract
The invention discloses a method and a device for protecting the monitoring components and measuring cables of tunnel monitoring components by drilling and blasting method. Vertically and fixed on the tunnel primary support steel arch at the location of the monitoring components, the longitudinal tube of the "L"-shaped protective tube is arranged along the longitudinal direction of the tunnel; step 2, longitudinally installed behind the longitudinal tube of the "L"-shaped protective tube A PVC pipe; step 3, after spraying the primary concrete, the bottom part of the PVC pipe is located in the primary concrete, the PVC pipe is taken out from the primary concrete, and a groove is formed at the original position of the PVC pipe; step 4, the The measurement cable led out from the rear end of the longitudinal tube of the "L"-shaped protective tube passes through the groove longitudinally, and a protective plate is covered above the groove. The method can effectively avoid the damage of the measuring cables of the monitoring components and ensure the long-term effective use of the monitoring components.
Description
【Technical field】 [0001] The invention belongs to the technical field of tunnel engineering construction, and in particular relates to a method and a device for protecting a measurement cable of a tunnel monitoring component by a drill-and-blast method. 【Background technique】 [0002] In the process of tunnel construction, in order to ensure the safety of the tunnel, construction personnel and equipment during the construction process, it is necessary to monitor the stability of the surrounding rock of the tunnel. Generally, monitoring components are buried behind the primary support structure of the tunnel and in the steel arch, and then the measurement cables of the monitoring components are led to the back of the tunnel face for data collection and analysis. The tunnel is constructed by the drilling and blasting method. The stones and shock waves generated by the blasting of the tunnel will easily damage the measurement cable of the monitoring components. If the measureme...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/10E21F17/18H02G9/08H02G3/04H02G3/30
CPCE21D9/003E21D9/006E21D11/10E21F17/18H02G9/08H02G3/0462H02G3/30
Inventor 种玉配刘永胜姚士磊刘龙卫杨效广熊炎林邵阳杨朝帅代昱昊尚伟
Owner CHINA RAILWAY TUNNEL GROUP CO LTD