高原农业2025，Vol.9Issue(5)：539-548,10.DOI:10.19707/j.cnki.jpa.2025.05.002
易贡滑坡体现场推剪试验
Field Push-cutting Test of Yigong Landslide
摘要
Abstract
The push shear test is a commonly used method to measure the in-situ shear strength of soil.To measure the in-situ shear strength of soil-rock mixtures,a test device was developed that allowed for quick adjustments,simple loading,and was suitable for pushing shear tests in coarse-grained soil.A three-dimensional coordinate measurement device for the shear sliding surface was also developed.Using this device,in-situ push shear tests were conducted on the Yigong landslide body in the Linzhi area,Xizang,and the collected test data were analyzed,resulting in the shear strength and shear parameters of the landslide soil.The test results indicated that the higher the stone content,the greater the shear strength of the soil.Cohesion was positively correlated with stone content,while the internal friction angle showed no significant change with increasing stone content.The test results can provide a reference for the study of the Yigong landslide body.关键词
推剪试验/推剪滑动面三维坐标测量装置/易贡滑坡体/抗剪强度参数Key words
Push-cutting test/Three-dimensional coordinate measuring device of push-cutting sliding surface/Yigong landslide mass/Shear strength parameter分类
天文与地球科学引用本文复制引用
曹志翔,张闯,宋新伟..易贡滑坡体现场推剪试验[J].高原农业,2025,9(5):539-548,10.基金项目
国家自然科学基金项目(U20A20111) （U20A20111）
西藏自治区自然科学基金项目(XZ202501ZR0024) （XZ202501ZR0024）
