精密水准测量在单桩静载荷试验中的应用  

The Accurate Level Surveying to Pile Vertical Compressive Static Load Test

作　　者：吴亮清[1] 俞缙[2] 谢邵峰[1] 

机构地区：[1]桂林工学院土木工程系,广西桂林541004 [2]南京水利科学研究院岩土工程研究所,江苏南京210024

出　　处：《西部探矿工程》2009年第2期3-5,共3页West-China Exploration Engineering

摘　　要：分析了大吨位单桩竖向抗压静载荷试验加载卸载过程中由于桩身周边土体沉隆造成的基准梁变形问题及其对试验结果产生的影响,并详细介绍了一种精确测定基准梁变形从而消除此影响的常用方法——精密水准测量方法,并通过工程实例验证了此方法在大吨位静载荷测试中的重要性及可靠性。In this paper the author analyses the deformation caused by pile loading and unloading of Benchmark Beam and proposed the negative impact to the experimental results in large tonnage pile vertical compressive static load test, and proposed a common method what can remove the negative impact by accurate measurement the deformation of benchmark beam comprehensively-the accurate level surveying. At the same time, there is a project given the verification for the method. It proved that it is important and reliable in large tonnage pile vertical compressive static load test.

关 键 词：基准梁变形 精密水准测量 单桩竖向抗压静载荷试验 

分 类 号：P224.1[天文地球—大地测量学与测量工程]