某滑坡区公路路基沉降段地质勘察及治理方案

Geological survey and processing scheme of highway subgrade subsidence section in landslide area

对某公路K1+380~K1+450路段进行地质勘察,获取真实可靠的地质资料,基于地质信息并根据相关的技术规范对沉降段采用桩板挡墙+路面恢复进行治理。其中K1+385~K1+406段覆土层较厚,采用1. 8 m×2. 5 m的矩形桩进行加固,其余路段采用1. 25 m×1. 5 m的矩形桩进行加固。

The paper carries out geological survey for the highway at the road section of K1 + 380 ~ K1 + 450,and obtains real and reliable geological data. Based on geological information and relevant technical norms,it carries out treatment for the subsidence section by applying the method of pile board retaining-wall + pavement re-coverage. In light of the rather thicker soil-covering layer at the section of K1 + 385 ~ K1 +406,it applies the rectangle pile of 1. 8 m × 2. 5 m for reinforcement. As for other sections,it applies the rectangle pile of 1. 25 m × 1. 5 m for reinforcement.