Abstract:

The planned Ma-1 well road is located in the north Tongjiang county, the transitional zone between Sichuan basin and Micangshan structure, where the geological disasters are mainly small landslides and potential landslides formed by the Quaternary loose sediments which has little impact on roads. During road construction, the geological disasters can be triggered or deteriorated by high-angle slopes or landslides which are formed by excavation. The uneven depression of soft bases will lead to a deformation and rock falling. This paper, based on the situation, presents some approaches to different geological disasters.

Key words:

geological disasters; Ma-1 well; assessment; Tongjiang county

摘要：

拟建的马1井井场公路位于通江县北部四川盆地与米仓山构造带的转换部位，该处主要地质灾害类型为小型滑坡以及第四系松散堆积物组成的潜在滑坡，对公路的危害程度较小。在公路建设中，可能诱发或加剧的地质灾害主要表现为深路堑开挖形成的高陡边坡失稳崩塌或滑坡，高填方软弱地基的不均匀沉降导致的路基变形失稳、岩石风化碎落等。本文基于公路工程区现状评估和预测评估结果的基础上，根据不同的灾种和危险性提出了相应的防治措施。

关键词: 地质灾害；井场；评估；通江县