软岩隧道底板隆起机理及微型桩防治研究  

Research on Uplift Mechanism of Soft Rock Tunnel Floor and Micro-pile Prevention and Control

作　　者：李和志 赵永清 蒋鑫 LI He-zhi;ZHAO Yong-qing;JIANG Xin(Hunan Urban Construction College,Xiangtan 411100,China;Nuclear Industry Hengyang Second Geological Engineering Survey Co.,Ltd.,Hengyang 421001,China)

机构地区：[1]湖南城建职业技术学院,湘潭411100 [2]核工业衡阳第二地质工程勘察有限公司,衡阳421001

出　　处：《价值工程》2022年第27期49-51,共3页Value Engineering

基　　金：湖南省教育厅科学研究项目:微型桩防治软岩隧道底板隆起机理及工程应用研究(18C1261)。

摘　　要：软岩隧道底板经常因底板卸荷产生隆起现象,为了方便其隆起机理研究,结合底板受力特性,建立简化计算模型,通过力学计算,推导出底板隆起量计算公式,定量分析软岩隧道底板稳定性。对微型桩防治软岩隧道底板隆起进行了研究。The soft rock tunnel floor rises frequently due to the unloading of bottom plate.To study its uplift mechanism,the force characteristics of the bottom plate was considered to establish a simplified calculation model.Through the mechanical calculation,the bottom plate uplift calculation formula was derived,and the stability of soft rock tunnel was quantificationally analyzed.The micro piles controlling the uplift of soft rock tunnel floor was studied.

关 键 词：软岩 隧道 底板隆起 稳定性 微型桩 

分 类 号：U455[建筑科学—桥梁与隧道工程]