富水粉细砂地层隧道综合降水设计与施工技术  

On Design and Construction Technology of Tunnel Comprehensive Precipitation in Silty Sand with High Water Content Stratum

作　　者：舒丽红[1] 

机构地区：[1]西安铁路职业技术学院,陕西西安710600

出　　处：《西安铁路职业技术学院学报》2016年第1期28-31,共4页Journal of Xi’an Railway Vocational & Technical Institute

摘　　要：对胡麻岭隧道第三系富水粉细砂地层特性进行分析论述，提出了洞内综合降水技术，达到了降低围岩含水率、控制围岩变形的效果，解决了围岩受施工扰动和水长期浸润后开挖时不稳定问题，保证了隧道结构和施工安全，为同等或类似地质条件下的地下工程研究及施工提供借鉴和参考。In this paper, Humaling tunnel tertiary rich silty and fine sand strata characteristics are analyzed and discussed, and tunnel dewatering technology is proposed. The goal of reducing the effect of rock moisture content and control of the surrounding rock deformation has been achieved. The excavation instability problems that after construction disturbance and long - term water infiltration have been solved, therefore it eusures the safety of tunnel structure and construction, and provide references for underground engineering research and construction under the same or similar geological conditions.

关 键 词：富水粉细砂 液化 涌水涌砂 围岩稳定 综合降水 设计与施工 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]