摘要
为了科学合理地评价南水北调中线干线工程弃渣场的稳定性,减少水土流失对周围环境的影响,以南水北调中线工程陶岔至沙河以南段为例,对该段52个弃渣场的稳定性进行了多维度评估,分别运用刚体极限平衡法和强度折减法对其中5个弃渣场进行计算,并用FLAC3D软件分析了正常工况、降雨工况和地震工况及有无格构-插筋护坡系统对弃渣场边坡稳定性的影响。结果表明:所有弃渣场的边坡稳定性均达到规定值,符合边坡安全稳定性要求;有格构-插筋护坡系统的弃渣场在不同工况下都有较好的安全稳定性。所使用的多维度弃渣场稳定性评估方法能够科学合理地评估南水北调中线干线工程弃渣场边坡的稳定性,对类似工程建设评估具有借鉴意义。
In order to scientifically and reasonably evaluate the stability of the spoil disposal yard of Middle Route Project of South-to-North Water Diversion and reduce the impact of soil and water loss on the surrounding environment,the Taocha-Shahenan section of the Middle Route Projec tof South-to-North Water Diversion was taken as an example for research.The stability of 52 spoil disposal yards in this section were evaluated with multi-perspectives,and 5 spoil disposal yards of them were selected and were calculated by rigid body limit equilibrium method and strength reduction method respectively.FLAC3D software was used to analyze the influence of normal working condition,rainfall condition and earthquake condition,as well as the presence or absence of lattice joint reinforcement slope protection system on the slope stability of spoil disposal yards.The results showed that:the slope stability of all spoil disposal yard reached the specified value and met the requirements of slope safety and stability,and the spoil disposal yard with lattice reinforced slope protection system was safe and stable under different working conditions.The multi-perspectives stability evaluation method of spoil disposal yard used in this paper could scientifically and reasonably evaluate the slope stability of spoil disposal yard for the middle Route Project of South-toNorth Water Diversion,so as to improve the stability of spoil disposal yard.It could also be a reference for the construction evaluation of other water conservancy projects.
作者
常志兵
黄斌
刘洋洋
张爱静
CHANG Zhibing;HUANG Bin;LIU Yangyang;ZHANG Aijing(South-to-North Water Transfer Middle Route Engineering Construction Administration,Beijing 100038,China;Changjiang In-stitute of Survey,Planning,Design and Research Co.Ltd.,Wuhan 430071,China)
出处
《水利水电快报》
2022年第4期67-73,共7页
Express Water Resources & Hydropower Information
关键词
弃渣场稳定性
多维度评估
南水北调中线工程
陶岔至沙河南
stability of spoil disposal yard
multi-perspectives
Middle Route Project of South-to-North Water Diversion
Taocha-Shahenan section
