摘要
公路隧道开挖施工过程中,不可避免会对围岩完整性、连续性进行一定程度破坏。为了对隧道施工中围岩稳定性进行实时监测,在隧道工程地质勘察中,运用钻探、试验、物探及模型计算等多种方式结合手段,对隧道围岩结构特征进行研究,确定岩体结构控制面的方位和特性;同时,运用岩石室内试验方式,对围岩密度、吸水率、强度参数及变形指标等进行准确测定,获取隧道围岩物理力学性质参数,进一步评价隧道围岩工程质量及稳定性,为隧道施工中可能出现的工程地质问题做出预报。
During the process of excavation of highway tunnel,the integrity and continuity of surrounding rock will be destroyed inevitably.Therefore,in order to monitor the stability of the surrounding rock,drilling,kinds of tests,physical explorations and model calculations have been used in the engineering geological investigation of the tunnel.The orientation and properties of the optimum structural surfaces of rock mass have been determined by studying the characteristics of surrounding rock.Meanwhile,the density,ratio of water absorption,strength parameters and deformation indexes have also been obtained by in-door tests.In this way,the quality and stability of surrounding rock of the tunnel have been evaluated.The forecast of the engineering geological problems has been made in the construction of the tunnel.
作者
王丹微
庞大鹏
Wang Danwei;Pang Dapeng(School of Geomatics and Prospecting Engineering,Jilin Jianzhu University,Changchun Jilin 130118,China;Northeast Electric Power Design Institute Co.,Ltd.,Changchun Jilin 130033,China)
出处
《山西建筑》
2023年第18期175-177,共3页
Shanxi Architecture
关键词
隧道
围岩
结构特征
力学性质
tunnel
surrounding rock
structural characteristics
mechanical properties
