摘要
支护结构中锚杆的受力在一定程度上反映了作用在支护结构上的土压力大小。对锚杆受力进行原位监测,通过对数据进行研究、分析,可以了解土压力的大小和分布规律,这对于优化深基坑支护结构设计具有重要的实际意义。以某基坑工程为依托,对锚杆在张拉锁定及工作过程中的实际受力情况进行了全程监测,通过FLAC数值模拟分析,研讨了作用于支护结构上的土压力计算问题。
The stress of anchor in retaining structure reflects the value of earth pressure in some degree. So carrying on in-situ measurements of anchors stress, the value and distribution of earth pressure will be investigated by analysis on actual data. It has important and practical significance in optimizing design of retaining structures of deep foundation pit. Taking the practical project for example, the actual stress of anchor during tensioning and fixation is measured and analyzed. With the FLAC numerical simulation, the calculation method of earth pressure on retaining structure is discussed.
出处
《岩土工程技术》
2008年第2期67-70,共4页
Geotechnical Engineering Technique
基金
国家自然科学基金项目(50678003)
北京市科委资助项目(KZ200710005004)
关键词
基坑工程
土压力
数值模拟
锚杆拉力
foundation pit engineering
earth pressure
numerical simulation
stress of anchors
