工程科学学报2017，Vol.39Issue(5)：786-793,8.DOI:10.13374/j.issn2095-9389.2017.05.018
高地应力硬岩下双孔并行隧道相似模型试验及数值模拟
Similarity model test and numerical simulation of double parallel-tunnel excavation in hard rock under high ground-stress conditions
摘要
Abstract
Based on the similarity simulation theory, a parallel-tunnel model test system was constructed that consists of a test bench design, a monitoring system design, a loading system design, and the construction of a rock mass model. The models were monitored in key positions of displacement, stress changes, and destruction of the tunnel walls. It is found that the experimental obser-vation and numerical simulation results based on the Mohr-Coulomb model exhibit relatively large disparities. However, based on the Plastic-Hardening model, the yield states and variation laws of the rock and soil were obtained by numerical simulation and these results are in good agreement with the experimental results. If all aspects of research results is integrated, the Plastic-Hardening model accurately reflects real changes in the states of the rock and soil in actual engineering applications and tests and can provide an impor-tant reference for double parallel-tunnel construction and maintenance under similar geological conditions.关键词
双孔并行隧道/相似材料模型/Mohr-Coulomb模型/FLAC3D/Plastic-Hardening模型/FLACKey words
double parallel tunnel/similar material model/Mohr-Coulomb model/FLAC3D/Plastic-Hardening model/FLAC分类
交通工程引用本文复制引用
赵宇松,高永涛,宋伟超..高地应力硬岩下双孔并行隧道相似模型试验及数值模拟[J].工程科学学报,2017,39(5):786-793,8.基金项目
科技北京百名领军人才培养工程资助项目(Z151100000315014) （Z151100000315014）
