深基坑预应力锚索支护监测数据分析与研究

摘要

为深入研究基坑支护预应力锚索的锚固机理和锚固效果,根据预应力锚索弹性状态下的变形,建立了预应力锚索弹性状态下的变形解析力学模型.按照国家规范对大连奥海大厦1号楼深基坑支护预应力锚索进行了试验检测,对预应力锚索锚固效果进行了评定.在此基础上,通过模型计算结果和实测结果的对比,验证了计算模型的正确性.%In order to study anchorage mechanism and anchorage effect upon the foundation excavation reinforcement pre-stressed anchor, the deformation analytical mechanicl model in the case of pre-stressed anchor elastic state is established in accordance with the deformation under pre-stressed anchor elastic state. In accordance with national specifications, the testing monitoring is made of the pre-stressed anchorage in foundation excavation reinforcement of No. 1 Aohai Building in Dalin, and the anchorage effect of the pre-stressed anchor is evalusted, on the basis of which the correctnes of calculation model is tested via the comparison of the results calculated by the nmodel with those from the real tests.