高速公路软土地基监控技术初探  

Monitoring Technology for Soft Soil Foundation of Highway

作　　者：吴生海 许茜[1] 张蓓[1] WU Sheng-hai;XU Qian;ZHANG Bei(School of Construction Engineering,Nantong Vocational University,Nantong 226007,China)

机构地区：[1]南通职业大学建筑工程学院,江苏南通226007

出　　处：《南通职业大学学报》2020年第4期100-104,共5页Journal of Nantong Vocational University

基　　金：2020年度江苏省大学生创新创业训练计划项目(202011052011Y)。

摘　　要：针对软土地基的应力变形特点,在阐述高速公路软基监控目的基础上,分析了软基应力观测、变形观测和地下水位监测三种软基监控方法,介绍孔隙水压力计(孔压计)、土压力盒两种应力观测仪器及水平向变形、竖向变形观测仪的布设要求,并据此制定高速公路软土地基监控方案,以主动控制路堤施工期的变形度与稳定性,控制并预测运营期软基的工后沉降。After expounding the stress and deformation characteristics of soft soil foundation and the purpose of expressway soft foundation monitoring,three soft foundation monitoring methods,namely stress observation,deformation observation and groundwater level monitoring,are analyzed.Based on the introduction of the layout requirements of stress observation instruments(pore pressure gauge and earth pressure box)and deformation observation instruments(horizontal deformation and vertical deformation),a highway soft soil foundation monitoring plan is made to actively control the deformation and stability of the embankment during the period of construction,and to monitor and predict the post-construction settlement of the soft foundation during the period of operation.

关 键 词：软基监控 应力观测 变形观测 地下水位观测 高速公路 

分 类 号：U416.1[交通运输工程—道路与铁道工程]