›› 2018, Vol. 32 ›› Issue (2): 165-168.

• 工程实录 • 上一篇    下一篇

花岗岩风化层滑坡的成因机制分析

周兴龙1,周丽红2,周兴华3   

  1. (1.广东省工程勘察院,广州 510000;2.广州金土岩土工程技术有限公司,广州 510000;
    3.江西省地质矿产勘查开发局赣南地质调查大队,江西赣州 341000)
  • 收稿日期:2017-05-18 修回日期:2017-05-26 出版日期:2018-04-30 发布日期:2018-05-09
  • 作者简介:周兴龙(1990-),男,助理工程师,研究方向为地质灾害防治和基坑设计。

Evaluation of Slide in a Weathered Granite Slope

ZHOU  Xing-Long-1, ZHOU  Li-Hong-2, ZHOU  Xing-Hua-3   

  1. (1.Guangdong Engineering Investigation Institute, Guangzhou 510510;
    2.Guanzhou Jintu Geotechnical Engineering Co., Ltd., Guangzhou 510510;
    3.Gannan Geological Survey Division, Jiangxi Geology and Mineral Exploration and Development Bureau, Ganzhou 341000)
  • Received:2017-05-18 Revised:2017-05-26 Online:2018-04-30 Published:2018-05-09

摘要: 广东地区花岗岩分布较为广泛,且花岗岩风化后风化土层厚度一般较大,常在20~30 m以上。多呈砂质粘性土状,加之广东年降雨量充沛,花岗岩风化土层浸水后软化严重,强度降低,故广东花岗岩地区多为地质灾害的易发、频发区。连山县太保镇位于典型的深厚花岗岩风化层地区,山地灾害频发,茂古村滑坡即是其中规模较大的一处,通过对该滑坡的变形发展史、地质环境条件等的分析,基本得出了滑坡的成因机制,对同类地区的斜坡稳定性判别和滑坡防治具有一定的借鉴意义。

关键词: 花岗岩, 滑坡, 成因

Abstract: The granite is a common bedrock type that is widely distributed in Guangdong Province which is underneath approximate 40% of the land area. The weathered granite in this region has a thick deposit depth, low shear strength when it soaks in the water and prone to develop landslide. A landslide in Maogu Village, Taibao Township of Lianshan County is a typical landslide in the weathered granite residual soils. This paper presents the landslide evaluation results and factors that cause the slide from the development of the slide and geological conditions.

Key words: Granite Bedrock, Landslide, Factors Inducing the Slide