土工基础

›› 2019, Vol. 33 ›› Issue (5): 623-626.

• 工程实录 • 上一篇    

甘肃黑方台黄土滑坡滑距影响因素的试验研究

丁 文1,2 ，张 凯1,2 ，徐 达1,2 ，曾 钰1,2 ，陈 源1,2 ，亓  星1,2   

  1. （1.四川轻化工大学土木工程学院，四川自贡 643000;2.桥梁无损检测与工程计算四川省高校重点实验室，四川自贡 643000）
  • 收稿日期:2019-05-26 修回日期:2019-07-04 出版日期:2019-10-20 发布日期:2019-10-22
  • 作者简介:丁 文（1998-），男，本科生，研究方向为土木工程。
  • 基金资助:

    大学生创新创业训练计划项目(201810622028)；桥梁无损检测与工程计算基金项目（2019QZJ02）

Experimental Evaluation of Factors Affecting Slip Distance of Landslide in Loess Soils at Heifangtai, Gansu Province

DING Wen1,2, ZHANG Kai1,2, XU Da1,2, ZENG Yu1,2, CHEN Yuan1,2, QI Xing1,2   

  1. （1.Sichuan University of Science and Engineering, Zigong,Sichuan 643000;
    2.Opening Project of Sichuan Province University Key Laboratory of Bridge Nondestruction Detecting and Engineering Computing, Zigong, Sichuan 643000）
  • Received:2019-05-26 Revised:2019-07-04 Online:2019-10-20 Published:2019-10-22

摘要： 黑方台位于长期灌溉地区，黄土滑坡广泛发育，直接威胁到了台塬下方村落的安全，深入研究这类滑坡的危害特征，进行合理有效的滑坡预测对保障当地居民的生命财产安全有着重要意义。基于室内模拟试验，选用黑方台原样黄土，在测得其初始质量含水率的前提下，通过控制固定的滑坡体体积，在不同坡度下进行了多组不同质量含水率的模拟试验，测量并记录试验得到的黄土滑坡的滑距、宽度、堆积厚度、面积等数据，通过综合分析所得数据，建立坡度及质量含水率与黄土滑坡各项基本特征参数的关系。

关键词: 黑方台, 黄土滑坡, 室内模拟, 质量含水率, 滑距

Abstract: Heifangtai is in Yongjing County, Gansu Province.  It is in an area with a long history of irrigation. Loess landslides are widely developed and often occur, which directly poses a geohazard to the safety of villages at the toe of terrace lands. The shear strength of the loess soil slopes with various slope angles and with different moisture contents from Heifangtai were laboratory evaluated. The simulations were studied with soil samples prepared in a constant slope volume and initial moisture content of original soils tested. The experimental landslide body parameters, such as, distance of slide, width of sliding body, thickness and area of the sliding body, were measured under different conditions. The relationships among the degree of slope angles, moisture contents and the landslide occurrence were established.

Key words: Heifangtai, Landslide in Loess Soils, Experimental Simulations, Moisture Content, Slip Distance