摘要
静载试验传统的方法是堆载法和锚桩法,在大吨位静载试验中将试桩周围工程桩用作锚桩几乎很少见到。以北京石景山区某工程静载荷试验为例介绍了应力分散型部分粘结预应力技术在锚桩中的应用,详细地阐述了应力分散型部分粘结预应力锚桩的受力机理。通过有限差分软件FLAC3D对锚桩上拔进行受力分析,验证了此方法的可行性。
The traditional methods of static load test are surcharge method and anchor pile method. In the large tonnage static load test,the engineering pile around the test pile is used as anchor pile almost hardly. Taking the static load test of a project in Shijingshan District,Beijing as an example,the application of the stress-dispersed partially bonded prestressed technology in the anchor pile is introduced,and the stress mechanism of the partially bonded prestressed anchor pile with stress dispersion is elaborated in detail. The feasibility of the method is verified by finite difference software FLAC3D.
出处
《施工技术》
CAS
2018年第S1期1459-1463,共5页
Construction Technology
关键词
静载试验
锚桩
应力分散型
预应力
数值模拟
static loading test
anchor-pile
stress-dispersed type
prestressing
simulation
