高密度电法和声波测试在输水隧洞勘察中的应用
Application of High Density Electrical Method and Acoustic Testing in Water Conveyance Tunnel Survey
彭耀 1喻理传1
作者信息
- 1. 湖北省地质局武汉水文地质工程地质大队,湖北 武汉 430051;资源与生态环境地质湖北省重点实验室,湖北 武汉 430034
- 折叠
摘要
围岩类别划分对隧道的设计、施工等具有很强的指导意义,通过声波测试对隧道洞身段岩体完整性指数进行计算,对比高密度电法勘探得到的视电阻特征,对隧道纵断面的岩体基本质量进行判定.通过压水试验,得到的岩层的透水率,综合考虑岩石强度,岩体完整程度,结构面状态,地下水状态,主要结构面产状等5大因素,进行围岩总评分,指导围岩类别划分.
Abstract
The classification of surrounding rock has strong guiding significance for the design and construction of tunnels.This paper calculates the integrity index of the rock mass in the tunnel body section through acoustic testing,compares the apparent resistance characteristics obtained from high-density electrical exploration,and determines the basic quality of the rock mass in the longitudinal section of the tunnel.By conducting water pressure tests,the permeability of rock layers is obtained.Taking into account five major factors,including rock strength,rock integrity,structural plane status,groundwater status,and main structural plane attitude,a total score of surrounding rock is obtained to guide the classification of surrounding rock types.
关键词
高密度电法/声波测试/岩体完整性指数/压水试验/围岩类别Key words
high density electrical method/sound wave testing/rock integrity index/water pressure test/surrounding rock category引用本文复制引用
基金项目
湖北省地质局武汉水文地质工程地质大队科研项目(WSKJ-2022-07)
出版年
2024
国家科技期刊平台
NSTL
万方数据