张茂省,薛强,贾俊,徐继维,高波,王佳运.山区城镇地质灾害调查与风险评价方法及实践[J].西北地质,2019,52(2):125-135
山区城镇地质灾害调查与风险评价方法及实践
Methods and Practices for the Investigation and Risk Assessment of Geo-hazards in Mountainous Towns
投稿时间:2019-04-04  修订日期:2019-05-05
DOI:10.19751/j.cnki.61-1149/p.2019.02.013
中文关键词:  山区城镇;地质灾害;斜坡;风险评价
英文关键词:mountainous towns;geo-hazards;slope;risk assessment
基金项目:国家重点研发计划项目(2018YFC1504700),国家自然科学基金重点项目(41530640、41731289),中国地质调查局项目(DD20160261、DD20189270),自然资源部黄土崩滑灾害野外科学观测研究基地联合资助
作者单位
张茂省 中国地质调查局西安地质调查中心/西北地质科技创新中心, 自然资源部黄土地质灾害重点实验室, 陕西 西安 710054 
薛强 中国地质调查局西安地质调查中心/西北地质科技创新中心, 自然资源部黄土地质灾害重点实验室, 陕西 西安 710054 
贾俊 中国地质调查局西安地质调查中心/西北地质科技创新中心, 自然资源部黄土地质灾害重点实验室, 陕西 西安 710054 
徐继维 长安大学, 陕西 西安 710061 
高波 中国地质调查局西安地质调查中心/西北地质科技创新中心, 自然资源部黄土地质灾害重点实验室, 陕西 西安 710054 
王佳运 中国地质调查局西安地质调查中心/西北地质科技创新中心, 自然资源部黄土地质灾害重点实验室, 陕西 西安 710054 
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中文摘要:
      山区城镇化、新农村建设、乡村振兴和脱贫攻坚大都面临着地质灾害的威胁,开展大比例尺地质灾害调查和风险评价,从源头控制地质灾害风险具有重要的战略意义。笔者在试点调查与评价的基础上,提出了一套山区城镇地质灾害调查与风险评价的思路和技术方法。山区城镇地质灾害调查与风险评价按照目的和比例尺精度的不同可分为3个层次:①区域远程地质灾害调查与风险评价,评价山区城镇遭受远程地质灾害的可能性,比例尺为1∶50 000。②城区地质灾害调查与风险评价,调查山区城镇周边区域每个斜坡和沟谷,评价其变形失稳的可能性及危害程度,比例尺为1∶10 000。③场地地质灾害调查与风险评价,评价重大工程建设、旅游景点等重要场地周边斜坡和沟谷变形破坏的可能性及危害程度,比例尺为1∶5 000~1∶2 000。对每个层次地质灾害调查与风险评价的内容、方法和过程进行了阐述,并以陕南秦巴山区和陕北黄土高原区典型山区城镇为研究区,建立了山区城镇地质灾害调查与风险评价应用示范。
英文摘要:
      Mountainous urbanization, new rural construction, rural revitalization and poverty alleviation are facing the threat of geo-hazards. It has a great strategic significance to carry out large-scale geo-hazards investigation and risk assessment to control geo-hazards risks from their source. Based on the pilot survey and assessment, this paper puts forward a set of ideas and technical methods for the investigation and risk assessment of geo-hazards in mountainous towns. Investigation and risk assessment of geo-hazards in mountain towns can be divided into 3 levels according to the purpose and scale accuracy. ① Investigation and risk assessment of regional remote geo-hazards, assessing the possibility of remote geo-hazards in mountainous towns, at scale of 1:50,000. ② Investigation and risk assessment of urban geo-hazards to investigate and assess the possibility and consequence of deformation and instability of surveying each slope and valley in the surrounding areas of mountain towns, with a scale of 1:10,000. ③ Investigation and risk assessment of important site geo-hazards to assess the possibility and consequence of deformation and damage of slopes and valleys around important sites, such as major construction projects and tourist attractions and evaluating the possibility of instability and the degree of damage. with scale range from 1:5,000 to 1:2,000. Each level has been explained in this paper from the aspects of contents, methods and processes of geo-hazards investigation and risk assessment. Taking the typical mountainous towns the Qinba Mountain Area in Southern Shaanxi and Loess Plateau Area in Northern Shaanxi, as the study areas the demonstrative application demonstration of geo-hazards investigation and risk assessment in mountainous towns was established.
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