水科学与工程技术
水科學與工程技術
수과학여공정기술
WATER SCIENCES AND ENGINEERING TECHNOLOGY
2014年
3期
53-54
,共2页
南水北调中线%隧洞稳定%应力分析
南水北調中線%隧洞穩定%應力分析
남수북조중선%수동은정%응력분석
South-to-North Water Diversion Project%tunnel stability%stress analysis
洞身稳定分析目的是了解围岩的稳定状况；由于地质条件的变化，围岩稳定分析工作非常困难。为确保隧洞开挖过程安全，对洞室周边切向应力和切向二次应力分析进行了计算，得出了围岩稳定受其岩石爆破和施工方法的影响，建议在隧洞开挖过程中，严格按新奥法施工。
洞身穩定分析目的是瞭解圍巖的穩定狀況；由于地質條件的變化，圍巖穩定分析工作非常睏難。為確保隧洞開挖過程安全，對洞室週邊切嚮應力和切嚮二次應力分析進行瞭計算，得齣瞭圍巖穩定受其巖石爆破和施工方法的影響，建議在隧洞開挖過程中，嚴格按新奧法施工。
동신은정분석목적시료해위암적은정상황；유우지질조건적변화，위암은정분석공작비상곤난。위학보수동개알과정안전，대동실주변절향응력화절향이차응력분석진행료계산，득출료위암은정수기암석폭파화시공방법적영향，건의재수동개알과정중，엄격안신오법시공。
The purpose of the hole body stability analysis is to understand the situation of surrounding rock stability; but due to various geological conditions, the surrounding rock stability analysis is very difficult to work. In order to ensure the safety of the tunnel excavation process, should be analysed and calcuted tangential stress and tangential secondary stress around cavern. It is concluded that the stability of surrounding rock is affected by the rock blasting and the construction methods, suggesting the construction in strict accordance with the new Austria tunneling method in the process of tunnel excavation.
