山区道路工程建设用地地质灾害危险性评估技术探讨

地质灾害对建设项目造成破坏,因此,在项目建设前进行建设用地地质灾害危险性评估就显得特别重要。在评估过程中,只有对灾害体类型、规模、影响范围、稳定性、危险性和危害程度做出准确的评估,评估结论才能成为拟建项目后续工作的科学依据。文章以某山区道路改造项目为例,探讨了山区崩塌危岩、泥石流灾种的地质灾害危险性评估的定性、半定量评价方法,并根据评估结果,提出了相应的治理方案。本文提出的评估方法在类似项目地质灾害危险性评估中具有参考和借鉴价值。

A disscusion on geologic risk assesement method of road construction in mountain area

The human activity can cause destruction of the geological environment directly, the change of the geological environment can bring out the geological risk, and it causes the destroy of construction project finally, so it is important to take geological risk assessment before project construction. The paper points out that making the accurate assessment only to the types of risk, scale, coverage, stability, risk and extent of risk in the course of assessing, the assessment result could build the scientific basis of the following project work. This paper takes a project of road in mountain area as an example, disscuses the nature, half quantitative method to geological risk assessment of debrits flow and collapse, and puts forward to the controlling measures. The assesement method provides references for the geologic risk assesement.