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

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

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.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

Abstract

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

DING Wen1,2, ZHANG Kai1,2, XU Da1,2, ZENG Yu1,2, CHEN Yuan1,2, QI Xing1,2. Experimental Evaluation of Factors Affecting Slip Distance of Landslide in Loess Soils at Heifangtai, Gansu Province[J]. , 2019, 33(5): 623-626.

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

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