Monitoring analysis of pre-stressed load of anchor cables for deep excavations
-
摘要: 通过实际工程锚索预应力荷载变化的系统监测结果及资料分析,探讨了深基坑桩锚支护体系中锚索预应力荷载的锁定瞬时损失、开挖及锚索施工中锚索预应力荷载变化和基坑侧向变形特性。Abstract: Based on systematical monitoring and analysis in practical projects, the loss of pre-stress after lock, load change of pre-stressed anchor cables in excavation and anchor cables during construction and lateral displacement of excavations are monitored and discussed. |
-
Keywords:
- deep excavation /
- pile-anchor support /
- anchor cable /
- anchorage force /
- lateral displacement
-
[1] 熊智彪, 欧阳中意, 王启云, 等. 深基坑桩锚支护结构锚索检测及监测分析[J]. 采矿与安全工程学报, 2009, 26(1): 123–126. (XIONG Zhi-biao, OUYANG Zhong-yi, WANG Qi-yun, et al. Test and monitoring for anchor rope of pile-anchor retaining structure in deep foundation pit[J]. 2009, 26 (1): 123–126. (in Chinese)) [2] 陈龙珠, 李庆伟, 党昱敬, 等. 北京某深基坑支护及施工监测实录[C]// 基坑工程实例. 2008. (CHEN Long-zhu, LI Qing-wei, DANG Yu-jing, et al. A certain deep foundation pit supporting engineering and construction monitoring record in Beijing[C]// Foundation Pit Engineering Example, 2008. (in Chinese)) [3] 张发明, 赵维炳, 刘 宁. 预应力锚索锚固荷载的变化规律及预测模型[J]. 岩石力学与工程学报, 2004, 23(1): 39–43. (ZHANG Fa-ming, ZHAO Wei-bing, LIU Ning. Long- term performance and load prediction model of pre-stressed cables[J]. Chininese Journal of Rock Mechanics and Engineering, 2004, 23(1): 39–43. (in Chinese)) [4] 朱晗迓, 孙红月, 汪会帮, 等. 边坡加固锚索预应力变化规律分析[J]. 岩石力学与工程学报, 2004, 23(16): 2756–2760. (ZHU Han-ya, SUN Hong-yue, WANG Hui-bang, et al. Analysis of pre-stress state of cable applied to rock slope reinforcement[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(16): 2756–2760. (in Chinese)) [5] 唐孟雄. 基坑工程预应力锚索锚固力试验研究[J]. 岩石力学与工程学报, 2007, 26(6): 1158–1163. (TANG Meng-xiong. Test study on anchorage force of pre-stressed anchor cables for foundation[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6): 1158–1163. (in Chinese))