广州市白云区钟落潭镇良沙路两侧地块地质灾害危险性评估

Geological disaster hazard assessment of land on both sides of Liangsha Road,Zhongluotan Town,Baiyun District,Guangzhou City

为响应白云区空港经济区发展建设需求,广州白云区政府开展了白云区钟落潭镇良沙路两侧地块地质灾害综合调查和地灾评估勘察,判定评估区地质环境条件复杂程度为中等。地质灾害危险性综合评估表明:现状未发现已发地质灾害;预测工程建设引发及遭受的地质灾害为基坑边坡崩塌/滑坡和地面沉降,前者发育程度强,潜在危害程度中等,危险性大;综合评估区内可分为危险性大区(Ⅰ)和危险性小区(Ⅲ),建设场地位于危险性大区(Ⅰ)。本地块的地质灾害危险性评估结果可靠,具备系统性,对后续建设场地的适宜性评价具有重要意义,并有助于开展重点区和一般区地质灾害的综合防治。

A comprehensive survey of geological hazards and an investigation for geological disaster assessment of land on both sides of Liangsha Road in Zhonglutan Town,Baiyun District,Guangzhou City,were carried out,and the complexity of the geological environment conditions in the assessment area were judged to be medium.The result of the comprehensive geological disaster risk assessment indicated that:No geological disaster has been found in the current situation;The geological disasters triggered and suffered by the project construction were predicted to be pit slope collapse/landslide and ground subsidence,while the former had a strong degree of development,a medium degree of potential hazard and a high degree of danger;The comprehensive assessment area can be divided into hazardous areas(Ⅰ)and hazardous districts(Ⅲ),and the construction site was in the hazardous area(Ⅰ).The results of the geological hazard risk assessment of this site were reliable and systematic,which is of great significance for the subsequent evaluation of the suitability of the construction site,and can help to carry out the comprehensive prevention and control of geological hazards in the key area and the general area.