摘要
结合三峡船闸设计研究工作 ,通过分析闸墙施工过程中自重荷载、温度荷载以及完建运行时温度应力、渗透压力的作用 ,详细研究了锚杆取不同自由长度时锚杆的应力情况 .结果表明 ,增加锚杆自由长度可以大幅度减小锚杆由闸墙自重、温度引起的高剪应力 ,使各锚杆的受力均匀化 。
The free anchorage length means the one of a special part of the anchor rod which can freely deform between the structure and rock mass.Based on the research and design of the lock wall of the Three Gorges Project,the action of the dead load and temperature load during construction of the temperature and seepage pressure during operation is analyzd,and the stress of the anchor rod of different free lengths is studied in detail.Useful results are obtained,such as,increasing the free anchorage length can decrease greatly the high shear stress caused by the dead load and temperature of the lock wall,so that the largest tensile stress of the rod is decreased.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
2000年第2期64-68,共5页
Journal of Hohai University(Natural Sciences)
关键词
三峡船闸
闸墙
锚杆
自由长度
Three Gorges ship lock
lock wall
anchor rod
free length
