高地应力区层状围岩斜竖井施工爆破数值模拟  

Numerical simulation of construction blasting of stratified surrounding rock in inclined shaft in highland stress area

作　　者：王鹏[1] 侍克斌[1] 龙小明 陈功民 白现军 

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]葛洲坝新疆工程局,新疆乌鲁木齐830000

出　　处：《水资源与水工程学报》2013年第2期89-91,共3页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金资助项目(50969010);新疆水利水电工程重点学科基金资助项目(xjzdxk-2010-02-12);新疆科技支撑计划项目(201233132)

摘　　要：为了解决层状围岩爆破开挖断面难成形以及层状围岩在爆破开挖时的超、欠挖的问题,运用三维有限元的分析方法,对布仑口—公格尔水电站斜竖井围岩进行了数值模拟分析。通过对掌子面周边围岩观测点数据分析,得出地应力对爆破震动的一些影响,以及层状围岩圆形断面隧洞最危险的破坏发生区和爆破震动波的传播规律,并对层状围岩圆形隧洞爆破超挖给出具体的建议,为层状围岩爆破开挖的施工和设计提供了参考思路和依据。In order to solve the problems about section of stratified surrounding rock being difficult to form and excessive or insufficient excavation stratified surrounding rock, the paper used three-dimensional analysis method of FEM to conduct numerical simulation for the stratified surrounding rock of the deep inclined shaft of Bulunkou - Konggur hydropower station. Through analyzing the observation data of the surrounding rock in tunnel face, it got the influence of the highland stress on blasting vibration, the most danger failure zone of the stratified surrounding rock and propagation law of the blasting vibration, and also gave suggestions about excessive or insufficient excavation stratified surrounding rock. The result can provide a way for the construction and design of similar projects.

关 键 词：层状围岩 数值模拟 爆破分析 高地应力 

分 类 号：TV554[水利工程—水利水电工程]