摘要
对压力分散型锚索锚固段力学性能进行现场试验,并对试验锚索进行回收。对锚固段应力分布状态进行观测,根据试验结果拟合出压力分散型锚索锚固段应变分布方程和轴力分布方程。现场试验和理论分析证明,其独特的结构型式决定其具有可靠的防腐蚀性能,其承载能力和锚固性能均优于传统的拉力型锚索。另外,压力分散型锚索还具有可回收性,很好地解决城市中锚索超越"红线"施工的问题,在城市深基坑加固工程中必将得到广泛应用。
The field tests are performed in the anchorage zone of pressure dispersion anchor cable style and the cables are reclaimed. The stress distribution state on the anchorage zone is observed and the equations of the strain and axial force on the anchorage zone are obtained. Field test and the theoretical analysis both show that the unique structure form is a determinant factor for its credible corrosion protection capability, and its bearing capacity and anchoring characters are entirely better than the traditional tension cable style. Otherwise, this cable style has the reclaimable function that has better problem-solving ability of cable overpass allowable scope and can be extensively used in the city foundation pit reinforcement engineering.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2010年第A01期3052-3056,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
采矿工程
压力分散型锚索
试验研究
锚固段:回收
mining engineering pressure dispersion anchor cable test study anchorage zone reclaim
