TSP技术在隧道超前地质预报中的应用  

Application of TSP technology in tunnel advanced geological prediction

作　　者：樊一平 FAN Yi-ping(Xinjiang Water Conservancy and Hydropower Survey and Design Institute, Urumqi 830000,China)

机构地区：[1]新疆水利水电勘测设计研究院

出　　处：《水科学与工程技术》2019年第5期75-77,共3页Water Sciences and Engineering Technology

摘　　要：考虑了TSP的有效资料和围岩勘察情况,选取与围岩类型密切相关、与TSP检测结果密切相关的5个影响因素,包括岩石完整性系数Kv、泊松比μ、杨氏模量E、纵波波速Vp和地下水开发状况W,作为评价围岩地质条件的评价指标。作为影响围岩分类的主要因素,所选评价指标与探测系统的结果密切相关,同时根据地震波场的响应特点,将评价指标分为5个等级,建立了相应的围岩分类模型。该方法可提高TSP检测数据的有效利用率,提高围岩等级判别的准确性,可推广到隧道、引水隧道等工程中。This paper considers the effective data of TSP and the survey of surrounding rock. Five factors closely related to the type of surrounding rock and the results of TSP test are selected, including rock integrity coefficient Kv, Poisson’s ratiom μ, Young’s modulus E, P-wave velocity Vpand groundwater development status W, as the evaluation indexes of surrounding rock geological conditions. As the main factor affecting the classification of surrounding rock, the selected evaluation index is closely related to the results of the detection system. At the same time, according to the response characteristics of seismic wave field, the evaluation index is divided into five grades, and the corresponding classification model of surrounding rock is established. This method can improve the effective utilization rate of TSP detection data and the accuracy of surrounding rock classification. It can be extended to tunnels, diversion tunnels and other projects.

关 键 词：TSP 超前地质预报 隧洞 地质分析 

分 类 号：TV141.1[水利工程—水力学及河流动力学]