近桥梁某邻铁路深基坑支护关键技术  

KEY TECHNOLOGY OF DEEP FOUNDATION PIT SUPPORT FOR A RAILWAY NEAR A BRIDGE

作　　者：范辉 Fan Hui

机构地区：[1]中铁上海设计院集团有限公司,江苏徐州221000

出　　处：《建筑技术开发》2022年第8期153-155,共3页Building Technology Development

摘　　要：为探究深基坑支护关键技术,以近桥梁某邻铁路为研究对象,首先分析工程概况,之后对施工前基坑边坡稳定性进行分析,做好施工设计,对周边环境进行支档、加固与保护,减小桥梁沉降。利用土力学理论计算公式对当前基坑施工工况进行分析,做好后续基坑变形数据监测,有效控制该深基坑侧向位移,直至沉降速率符合支护标准,实现现场巡视的常态化,以此降低对地层的扰动,实现基坑周边环境的安全。In order to explore the key technology of deep foundation pit support,taking a temporary railway near the bridge as the research object,this paper first analyzes the project overview,the stability of foundation pit slope before construction,does a good job in construction design,support,strengthen and protect the surrounding environment,and reduces bridge settlement.Using the calculation formula of soil mechanics theory to analyze the current foundation pit construction conditions,do a good job in the subsequent foundation pit deformation data monitoring,effectively control the lateral displacement of the deep foundation pit until the settlement rate meets the support standard,and realize the normalization of on-site inspection,so as to reduce the disturbance to the stratum and realize the safety of the surrounding environment of the foundation pit.

关 键 词：深基坑支护 邻近铁路 边坡稳性 土钉支护技术 

分 类 号：TU753[建筑科学—建筑技术科学]