肇庆市紫云大道隧道基坑监测方法应用与分析

Application and Analysis of Foundation Pit Monitoring Method for Ziyun Avenue Tunnel in Zhaoqing City

基坑监测项目繁多,其中围护桩(墙)体水平位移和支撑轴力的监测是重中之重,直接影响着基坑工程的安全,监测控制指标的确定则是基坑监测的前提和标准。以肇庆市紫云大道升级改造工程隧道基坑监测为例,对实时监测的方案设计、监测技术和工程实践进行了应用和分析。通过对异常监测值预警等以期对城市建设中的地下工程施工开展监测、消除安全隐患、保障施工顺利推进有指导和借鉴作用。

There are many monitoring items of foundation pit,among which the monitoring of horizontal displacement and axial force of retaining pile(wall)is the most important,which directly affects the safety of foundation pit engineering.The determination of monitoring control index is the premise and standard of foundation pit monitoring.Taking Ziyun road in Zhaoqing upgrading project in tunnel excavation monitoring as an example,the content,technology and method of real-time monitoring is introduced and analyzed,through such as early warning system for abnormal monitoring value in order to the urban construction of underground engineering construction surveillance,eliminate potential safety problems,ensuring the construction smoothly has guidance and reference,to ensure the engineering quality,safety and progress has a certain practical guiding significance.