TSP203plus系统在茶林顶隧道开挖施工中的应用

针对在公路隧道开挖过程中可能存在的不良地质环境,以广梧高速茶林顶隧道为工程背景,详细介绍了超前地质预报系统TSP203plus在隧道开挖施工中所起的作用.通过对测试的结果进行分析表明:该超前预报系统能够查明隧道掌子面前方100~200m范围内岩体的地质情况,主要包括节理、裂隙、溶洞以及含水状况等,还可估算出岩体的部分物理力学参数,为支护设计及变更施工工艺提供指导;同时应该明确,该预测系统也存在着一定的局限性,必要时应该采用其它的辅助设备来对地质情况进行综合分析.

Application of TSP203plus System in Excavation Construction for Chalinding Tunnel

To aim at the possible harmful geological environment in the process of highway tunnel excava -tion, taking Chalinding tunnel of Guang -wu highway for an example , the effect of TSP203plus, which is one of the advanced geology prediction systems , was introduced particularly during tunnel excavation construction .The test results show that geology situation of rock in the scope of 100~200m ahead of tunnel excavation face , which mainly includes joint , fracture , solution cavity and water conditions , can be predicted , and part physical param-eters of rock also can be estimated .These conclusions can be supplied as guidance for support design and con-struction change;in addition to this.It should be noted that some limitation existed for this prediction system , so that other assistant equipments should be adopted for composite analysis when necessary .