摘要
结合西安地铁二号线基坑施工情况,介绍了测斜技术的基本原理和方法,说明了基坑支护结构水平位移和沉降观测点的布设,对二号线的暗挖竖井围护桩土体进行侧向变形监测,并对监测数据进行分析,以提前发现危险,预判工程的安全,防止工程事故的发生,并利用监测的结果指导施工,确保施工安全顺利。通过测斜技术在西安地铁二号线暗挖竖井中的具体应用,证实了测斜技术在基坑变形监测中具有良好的优越性,并提出如果采用综合测量手段,能获得更准确的数据。
According to the specific condition of foundation pit in Xi＇an subway No.2 line,this paper introduced the basic principle and method of inclination technology,horizontal displacement of foundation pit supporting structure,layout principle of settlement observation point,made the lateral deformation monitoring for mining shaft retaining pile soil of No.2 line,and analyzed the monitoring data.The risk can be found in advance,engineering safety can be judged,and engineering accidents can be prevented by analyzing the data processing results which can also be used to guide the construction and ensure the construction safety.Through the application of inclination technology for vertical shaft in Xi＇an Subway No.2 Line,superiority of inclination technology for foundation pit deformation monitoring is confirmed and more accurate data can be obtained by synthetically using various measurement methods.
出处
《铁道建筑》
北大核心
2012年第11期47-49,共3页
Railway Engineering
关键词
基坑施工
水平位移
测斜
Foundation pit construction
Horizontal displacement
Inclination survey
