中国岩溶2018，Vol.37Issue(2)：307-313,7.DOI:10.11932/karst20180219
广东地区某公路岩溶隧道水害分析及其数值模拟研究
Water disaster analysis and numerical simulation of a karst tunnel in a highway of Guangdong Province
摘要
Abstract
The key factors to calculate the tunnel water inflow are studied based on the actual situation of a highway tunnel in the karst area.The tunnel water inflow rate is quantitatively analyzed with precipitation, rainfall intensity and infiltration intensity.According to the actual situation of Dabaoshan engineering site, precipitation infiltration method and underground runoff modulus method are applied to calculate the tunnel water inflow at the entrance on both sides in the wet season,and the maximum possible water inflow volume is analyzed under the heavy rainfall condition.The results show that the drainage capacity of the tunnel theo-retically meets the requirement of drainage in the wet season,but will be affected by the heterogeneity of the material and the engineering,and the long-term effect of clogging. The impact factors of karst tunnel water in highway are identified in Guangdong area.Karst tunnel sim-ulation models are established for both critical state and failure state of the water pressure.The results show that the critical value of water pressure increases with the thickness of the lining structure.关键词
岩溶/公路隧道/涌水量/水害/隧道涌水模拟/水压力Key words
karst/highway tunnel/water inflow/water disaster/tunnel inflow simulation/water pressure分类
天文与地球科学引用本文复制引用
张彦龙,田卿燕,张建同..广东地区某公路岩溶隧道水害分析及其数值模拟研究[J].中国岩溶,2018,37(2):307-313,7.基金项目
中国博士后科学基金(2016M590717) （2016M590717）
广东省交通运输厅科技计划项目(2013-02-035) （2013-02-035）
