隧道施工综合超前地质预报方法研究  

Research on Advance Geological Prediction Method for Tunnel Construction

作　　者：陈建平[1] 李睿哲[1] 余莉[1] 张旺兴[1] 郑维[1] 

机构地区：[1]中国地质大学,武汉市430074

出　　处：《公路》2014年第2期202-205,共4页Highway

基　　金：大断裂区超深埋特长隧道关键技术研究与应用;项目编号2011056080;国家自然科学基金项目;项目编号41202201;41102196;中央高校基本科研业务费专项资金项目;项目编号CUG130408

摘　　要：隧道施工中常常会遇到初期勘察阶段无法揭示的复杂地质条件,如果盲目施工,便可能出现塌方、突泥、涌水等地质灾害,给施工安全带来严重危害和重大经济损失。施工期隧道超前地质预报可以更准确地反映掌子面前方的不良地质条件,从而保证隧道的安全施工。提出了综合超前地质预报方法,发挥地质分析法的指导作用,将多种物探法优化组合,多角度多方面地反映掌子面前方的地质状况,较为准确地预报出掌子面前方的破碎带和涌水地段。将其应用于在建大坪山隧道,取得了良好的预报效果,确保了施工安全和进度,对同类工程有一定的指导意义和参考价值。In tunnel construction, contractors often encounter many ：omplex geological conditions which cannot be revealed in the initial investigation stage. Landslips, sudden muds, gushing waters and other geological disasters may occur if constructing without making it clear, which will bring serious harm to construction safety as well as significant economic losses. The geological prediction during-construction can reflect the adverse geological conditions of the heading face more accuracely, thus can ensure the safety of construction. The comprehensive advanced prediction system is proposed, which can play the guiding role of the geological analysis, optimize the combination a variety of geophysical methods and reflect the geological conditions in front of the heading face from multiple angles, and forecast fracture zones and gushing waters sections more precisely. This method has been applied in Dapingshan Tunnel, and it has performed its accurate prediction. Meanwhile it has ensured the safety on site and the construction on schedule. This method could be taken as a guide and reference for similar construction work.

关 键 词：隧道 综合超前地质预报 地质分析法 TGP 

分 类 号：U452.11[建筑科学—桥梁与隧道工程]