中文摘要：

以甘肃省省委、省政府岷县漳县6.6级地震灾后恢复重建工作的统一部署为契机,通过对岷县王家沟灾后重建安置点进行现场资料收集和场地条件勘察,把握异地重建集中安置点场地特征。在对该场地进行实地勘察后,对其边坡现场取土,室内进行静力试验,从土体物理力学性质方面给出该边坡相关参数,将其作为数值建模的基本参数,结合岷县实际发生地震波来模拟边坡在地震作用下的动力力学特性,得出其边坡的安全系数。结合《滑坡防治工程勘察规范》和《建筑抗震设计规范》开展岷县王家沟灾后重建安置点场地滑坡危险性评价,经数值模拟计算分析得出其边坡在静力条件下处于欠稳定状态,存在进一步滑坡的可能性;在动力条件下处于不稳定状态,尤其在强震的情况下,极有可能引起滑坡体进一步滑塌,其地质灾害危险性大。并针对已出现的实际场地安全问题,提出综合防御震害的对策建议,综合考虑建议避让,另选安全可靠的场地进行安置,方可避免更大的损失。

英文摘要：

In this paper,Gansu provincial committee and government unified arrangements Minxian-Zhangxian M_S6.6Earthquake recovery and reconstruction work as an opportunity,by collecting field data and reconnaissance site conditions,it can grasp the site characterization of relocated concentrated settlements.After the field investigation,the author digged loess samples from the slope,tested the static test in the laboratory,got the relevant parameters from the soil physical and mechanical properties,used these parameter as the basic parameter for numerical modeling,used Minxian seismic wave to simulate the dynamic mechanical properties of the slope under earthquake action,the safety factor of the slope was obtained at last.On the basis of the calculation of the safety factor,combined with the＂ Specification of Geological Investigation forLanslide Stabilization＂and＂Code for seismic design of buildings＂,the paper will give the site＇s landslide risk assessment,the slope is under steady state under static conditions,there is a possibility of further landslides,it is in an unstable state under dynamic conditions,especially in the case of strong earthquakes,it is likely to cause landslides further collapse,And for the actual site security issues that have arisen,it will also present a comprehensive damage prevention countermeasures.Considering the proposed avoidance,another safe and reliable site for placement,in order to avoid greater losses.