赣州市地质灾害分布特征及孕灾环境分析

Distribution Characteristics and Development Environment of Geological Disasters in Ganzhou City

赣州市地质灾害发生率和发生强度日益增高,对赣州市经济社会的发展造成了深远的影响,并对该地区的自然环境和人类生命财产安全构成了严重的威胁。通过对赣州市地质灾害孕育环境、发育规模、时空分布等进行实地调查以及对各种类型地质灾害发生数量进行数据统计与分析,开展了赣州市地质灾害的孕育、形成与防治研究。结果表明:赣州市地质灾害发生密度较高的地区主要是西部、南部、东南部以及东北部岩性较脆弱、地面变形严重的低山丘陵区;赣州市地质灾害的发生与该地区复杂的地形地貌、特殊的地层岩性、岩土体类型以及频繁的人类工程活动呈正相关关系。该研究可为该市的防灾救灾、人类工程建设提供理论依据。

With increasing frequency and intensity, geological disasters in Ganzhou City have profound negative im- pact on the economic and social development and threaten natural environment and the life and property security of local people. Based on the field investigation analysis of the development environment, scale, time and space distri- bution of geological disasters in Ganzhou City,this paper analyzes the locations of all kinds of geological disasters and their development and prevention. The results show that the high density zones of geological disasters are mainly distributed in the western,southern, southeastern and northeastern hilly areas whose stratum is very weak and the ground deformation is serious. The paper finds that the occurrence of geological disasters is positively corre- lated with the complex topography, the special stratum, the type of rock and frequent human engineering activities. The study provides theoretical reference to for prevention and relief of geological disasters and human engineering construction in Ganzhou City.