摘要
黄池沟配水枢纽工程建成运行期间,滑坡失稳滑塌会妨碍河道水流下泄,对分水池的正常运行构成间接影响。文章通过查明滑坡区工程地质概况,结合现场地质调查和室内试验结果,分析了该滑坡的基本特征及成因机制,采用极限平衡法,基于Rocscience-Slide二维边坡稳定分析计算程序对滑坡在不同工况下的稳定性进行了分析。结果表明:宏观判断位于黄池沟分水池左岸的1号堆积体现状条件下整体稳定性较好;该堆积体整体稳定及局部稳定计算成果表明,在天然工况、暴雨工况和地震工况下均满足规范要求。为监测边坡施工期及运行期安全情况,可在该堆积体布置表面变形测点监测表面变形,并对河道采取护岸防止河水淘刷堆积体坡脚的措施。
During the construction and operation of Huangchigou Water Distribution Hub,the instability and collapse of the landslide will hinder the downstream flow of the river,which will indirectly affect the normal operation of the water distribution pool.In this paper,the basic characteristics and genetic mechanism of the landslide are analyzed by identifying the project geological situation of the landslide area and combining with the results of field geological survey and laboratory test.The stability of the landslide under different working conditions is analyzed by using limit equilibrium method and Rocscience-Slide two-dimensional slope stability analysis and calculation program.The results show that the overall stability of the accumulation is good under the condition of macro judgment.The calculation results of the overall stability and partial stability of accumulation which is located on the left bank of Huangchigou water distribution pool show that meets the standard requirements under natural condition,rainstorm condition and earthquake condition.In order to monitor the safety of the slope during the construction and operation period,the surface deformation can be monitored at the surface deformation measuring point of the accumulation,and the measures to prevent the river bank from brushing the slope foot of the accumulation can be taken.
作者
王琪
王博
朱信龙
WANG Qi;WANG Bo;ZHU Xinlong(Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co.,Ltd.,Xi’an 710100,China;PowerChina Northwest Engineering Co.,Ltd.,Xi’an 710100,China)
出处
《中国水能及电气化》
2023年第4期36-41,共6页
China Water Power & Electrification
