摘要
受到地质条件、地下水位、土壤类型、土壤压缩性和人为因素等多种因素影响,公路隧道工程施工过程中常会遇到软土地基,表现出土质疏松、含水量高、可液化性、容易发生沉降等特征.如果在施工过程中不及时对公路隧道软土地基进行加固处理,则工程施工易产生裂缝,会随着地基承压强度增加发生严重的地面下沉问题,影响道路的安全和使用寿命.塑料排水板对于软土地基处理具有重要作用,只要根据相关标准借助塑料排水板对软土地基进行加固处理,即可形成排水通道,减少地基的水分压力,分散地基荷载,减少地基的沉降和变形,提高公路隧道使用寿命.
Abstract
Due to various factors such as geological conditions,groundwater level,soil type,soil compressibility,and human factors,soft soil foundations are often encountered during the construction process of highway tunnels,exhibiting characteristics such as loose soil,high water content,liquefiability,and susceptibility to settlement.If the soft soil foundation of the highway tunnels is not reinforced in a timely manner during the construction process,cracks are prone to occur during the construction process,and serious ground subsidence problems will occur as the bearing strength of the foundation increases,affecting the safety and service life of the road.Plastic drainage boards play an important role in the treatment of soft soil foundations.As long as the soft soil foundation is reinforced with plastic drainage boards according to relevant standards,a drainage channel can be formed.This can reduce the water pressure on the foundation,disperse the foundation load,reduce the settlement and deformation of the foundation,and improve the service life of highway tunnels.
基金项目
四川省教育厅科研项目(16ZB0405)
成都理工大学工程技术学院青年科学基金项目(C122015012)
NETL
NSTL
万方数据