中天山隧道高压富水段涌水量探测与连通试验研究

Study on Water Inflow Detection and Connectivity Test of High Pressure Water-rich Section of Zhongtianshan Tunnel

南疆铁路吐库二线中天山隧道高压富水段是隧道施工的难点,如何加强措施保证施工及运营安全是施工考虑的关键。为此,在施工过程中,通过TSP超前地质预报、超前探孔以及地下水连通试验等综合措施,进行涌水探测与连通试验,全面收集整理相关测试数据,分析围岩裂隙发育状况与地下水连通存储状态,进行突水涌水预测,为采取施工安全技术措施、调整设计参数等提供了可靠的依据。

High pressure water-rich section of Zhongtianshan Tunnel on Tulufan-Kuerle Line 2 of South Xinjiang Railway is a difficulty in tunnel construction. The construction key point to be considered is how to strengthen the measures to ensure the construction and operation safety. Therefore, during construction process, through TSP geological forecast, advance drilling hole, groundwater connectivity test and other comprehensive measures, the water inflow detection and connectivity test were conducted. And then, by collecting relevant test data comprehensively, and by analyzing the surrounding rock crack development status and groundwater connectivity storage status, the water burst and water inflow were able to be forecasted, which could serve as the reliable basis for using construction safety technical measures, adjusting the design parameters and so on.