Karst tunnel water outburst and mud outburst overall process gradual dynamic risk assessment method

A dynamic evaluation and whole-process technology, applied in instrumentation, computing, electrical digital data processing, etc., can solve problems that cannot be corrected, are not perfect, etc.

Inactive Publication Date: 2015-05-20
SHANDONG UNIV
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, domestic research on this aspect is not perfect at present. In the process of risk assessment, the complexity of underground engineering geological conditions is often ignored, and most assessment methods can only give qualitat

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
  • Karst tunnel water outburst and mud outburst overall process gradual dynamic risk assessment method
  • Karst tunnel water outburst and mud outburst overall process gradual dynamic risk assessment method
  • Karst tunnel water outburst and mud outburst overall process gradual dynamic risk assessment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0140] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0141] (1) In the tunnel survey stage, obtain the hydrogeological information of the tunnel site and its surrounding rocks, that is, the dangerous environment where water inrush occurs in the tunnel, and understand the risk status of the geological conditions in each section of the tunnel;

[0142] (2) Calculate the risk classification value according to the expert score vector and the factor weight vector and conduct a consistency test;

[0143] B=[b 1 b 2 …b i …b n ] (1)

[0144] ω=[ω 1 ω 2 … ω i … ω n ] T (2)

[0145] S=B ω (3)

[0146] Among them, B and ω are the expert score vector and factor weight vector respectively, and S is the risk classification value.

[0147] The calculation of the weight adopts the Analytic Hierarchy Process (AHP). The main calculation steps of the AHP method are as follows:

[0148] Step a is to c...

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 discloses a karst tunnel water outburst and mud outburst overall process gradual dynamic risk assessment method. The method includes the steps that 1, in the tunnel investigation stage, the tunnel address and the hydrogeological information of the surrounding rock near the tunnel are obtained, that is, the hidden danger environment for water outburst of the tunnel is obtained, and the risk states of the geological conditions of all segments of the tunnel are known; 2, the risk rating value is worked out according to an expert evaluation vector and a factor weight vector, and consistency check is conducted; 3, danger factors are introduced to influence factors of risk evaluation, the hidden danger environment and the danger factors are considered comprehensively, water outburst risk evaluation is conducted, and the segment distribution feature with the tunnel water outburst risk is divided; 4. The values of all indexes are corrected in real time in combination with actual field construction so as to achieve dynamic evaluation of the water outburst and mud outburst risks. The purposes of optimizing construction organization design and avoiding medium and large water outburst geological disasters are achieved through dynamic construction risk evaluation and control, and important data are provided for later-period tunnel operation risks, and the method has very wide application prospects.

Description

technical field [0001] The invention relates to a progressive risk dynamic assessment method for the whole process of water and mud inrush in karst tunnels. Background technique [0002] Tunnel and underground engineering involves traffic engineering (railways, highway tunnels), water conservancy and hydropower engineering (water tunnels, underground powerhouses) and other important engineering fields, and has gradually become an important part of the country's major infrastructure projects. According to the planning of strategic technological development such as "Five", the focus of major engineering construction is gradually shifting to the western mountainous area with extremely complex topography and geology. The karst water inrush faced during the construction process is one of the main geological disasters in the construction of tunnels in karst areas. Therefore, for tunnel construction in karst areas The risk assessment of the whole process of water and mud inrush in ...

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): G06F19/00
Inventor 李利平石少帅卜林李术才周宗青许振浩张乾青林鹏袁永才
Owner SHANDONG UNIV
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap