基于现场调查分析的地质灾害风险评价  

作　　者：李晴 李强 孙东 杨涛[1,2,3] 伍剑波 罗小惠 

机构地区：[1]四川省地质环境调查研究中心,成都610081 [2]四川省华地建设工程有限责任公司,成都610081 [3]四川省地质灾害防治工程技术研究中心,成都610081

出　　处：《科技创新与应用》2025年第8期90-94,共5页Technology Innovation and Application

基　　金：四川省地质调查研究院科技创新项目(SCIGS-CZDXM-2024008)

摘　　要：该研究通过对西昌钒钛产业园区的现场调查,对其地质灾害危险性进行评价,以期为园区防灾减灾工作提供科学依据。研究区地质灾害现状评估结果表明,该区域地质灾害现状危害程度较小,发育程度为弱发育,整体地质灾害危险性较低。基于对区域地质条件、地形地貌及历史灾害数据的分析,该文进一步对未来工程建设可能引发的地质灾害进行预测评估。研究发现,在工程建设过程中,引发滑坡和崩塌地质灾害的可能性为中等,相关危害程度也为中等,但整体危险性仍然较小。对于基坑坑壁滑坡(垮塌)地质灾害和地基不均匀沉降问题,其可能性和危害程度均较小,危险性也较低。然而,在洪水影响方面,研究区工程建设面临中等程度的风险,尤其是在基坑埋深较大的情况下,基坑地下水主要依赖安宁河补给。为保障基坑开挖的安全,建议在开挖过程中采取加强降水措施,降低地下水位,确保施工过程中的稳定性和安全性。该研究的结果可为类似地区的地质灾害防治提供有价值的信息,并对类似条件下的地质灾害危险性评估具有一定的参考意义。This study conducted an on-site investigation of Xichang Vanadium and Titanium Industrial Park to evaluate its geological disaster risk,in order to provide scientific basis for disaster prevention and reduction work in the park.The assessment results of the current geological disaster situation in the study area show that the current geological disaster situation in this area has a small degree of harm,a weak degree of development,and a low overall geological disaster risk.Based on the analysis of regional geological conditions,topography and historical disaster data,this paper further predicts and evaluates the geological disasters that may be caused by future project construction.The study found that during the project construction process,the possibility of causing geological disasters of landslides and collapses is medium,and the degree of related hazards is also medium,but the overall risk is still small.For the geological disaster of foundation pit wall landslide(collapse)and uneven foundation settlement,the possibility and degree of harm are small,and the danger is also low.However,in terms of flood impact,the engineering construction in the study area faces moderate risks,especially when the foundation pit is deeply buried,and the groundwater of the foundation pit mainly relies on the Anning River for replenishment.In order to ensure the safety of foundation pit excavation,it is recommended to take measures to strengthen precipitation during the excavation process to reduce the groundwater level to ensure stability and safety during the construction process.The results of this study provide valuable information for the prevention and control of geological disasters in similar areas,and have certain reference significance for geological disaster risk assessment under similar conditions.

关 键 词：现场调查 地质灾害 危险性评价 危害程度 防治 

分 类 号：P642[天文地球—工程地质学]