深基坑支护技术及监测方案

Supporting Technology and Monitoring for Deep Foundation Pits

随着城市化进程的加快,市政工程建设规模不断扩大,建设环境的复杂性以及在资源储备、技术准备等方面存在的局限性,不利于工程项目顺利推进。现代建筑正在向纵深发展,建筑基坑也在向纵深发展,而且面积也在不断扩大,深基坑的支护技术越来越普遍地被应用。文中以黄旗堡污水处理厂项目为例,结合项目基坑支护结构的安全等级及荷载要求,以深基坑支护技术为重点,采用桩锚与自然放坡相结合的支护方案,最后对基坑的坡顶水平、深层土体、地下水位沉降值进行观测,保证了基坑稳定性及安全性。地下结构施工顺利的前提条件是以市政工程深基坑支护技术为保障,市政工程的数量和规模随着中国城市现代化进程的不断加快而日益壮大。因此,建设单位需要在技术把关、掌握技术难点、健全管理机制、发现问题等方面做好功课,深基坑支护技术应用效果将得到有效提升。

With the accelerated urbanization process,the scale of municipal engineering construction is continuously expanding.The complexity of the construction environment and limitations in resource reserves,technical preparations,and other aspects hinder the smooth progress of engineering projects.Modern architecture is developing vertically,and so are construction foundation pits,whose area is also increasing.Additionally,the support technology for deep foundation pits is also becoming more commonly applied in deep foundation pit support technology.Taking the Huangqibao Sewage Treatment Plant Project as an example and combining the safety level and load requirements of the project’s foundation pit support structure,this paper focuses on deep foundation pit support technology and adopts a support plan combining pile anchoring and natural sloping.In the final part of this paper,the horizontal displacement of the pit’s slope top,deep soil layer,and groundwater level were observed to ensure the stability and safety of the foundation pit.The guarantee of good deep foundation pit support technology in municipal engineering is the premise for the smooth progress of underground structure construction.The quantity and scale of municipal engineering are increasing as China’s urban modernization process accelerates.Therefore,the construction company needs to perform well in technical control,mastering technical difficulties,improving the management mechanism,identifying problems,etc.to effectively enhance the application effect of deep foundation pit support technology.This paper mainly focuses on the application of deep foundation pit support technology in similar projects and carries out an in-depth study of civil foundation engineering.