浅埋煤系地层公路隧道断面收敛规律研究  

Stability of Highway Tunnels in the Shallow Buried Coal Bearing Strata

作　　者：王楠[1] 李超[1] 叶明亮[1] 

机构地区：[1]贵州大学喀斯特环境与地质灾害防治教育部重点实验室,贵阳550003

出　　处：《土工基础》2015年第3期125-128,共4页Soil Engineering and Foundation

基　　金：贵州矿山开采成灾模式及预警预报关键技术研究(黔科合重大专项字[2011]6004)

摘　　要：随着我国公路工程深入山区,高标准等级公路增多,公路隧道的建设将大规模增加。在西南地区,工程地质条件复杂,尤其是穿越煤层的隧道施工区,将对隧道施工造成巨大困难,监控量测是保证煤系地层地区浅埋暗挖隧道施工安全的重要手段。通过对某浅埋煤系地层隧道拱顶下沉与周边收敛监控量测数据的分析,总结了施工期内煤系地层浅埋隧道开挖后围岩的变形规律,可为类似工程地质条件下的隧道施工提供借鉴。Tunnels are more and more popular in the construction of the higher grades of highway in the mountain areas.The tunnel construction in the mountainous area is a challenge in the Southwestern China due to the complexities of the geologic conditions,especially,when the tunnel are penetrating through the coal bearing strata.The control monitoring is a key measure for the safe construction of the shallow buried tunnels.This paper presents a case history of the construction monitoring of the settlement at the tunnel crest and the deformation at the surrounding area.The deformation characteristics in the tunnel through coal bearing strata are summarized.

关 键 词：浅埋 煤系地层 监测 收敛规律 

分 类 号：U456[建筑科学—桥梁与隧道工程]