金沙江典型滑坡滑带土大型直剪实验数据（2020）

课题获取了青藏高原金沙江流域典型重大滑坡（扎农滑坡、宗绒村滑坡、下归洼滑坡）的滑带土与基岩物理力学指标。滑带土的物理力学指标主要通过大型直剪试验获得。获取的物理力学指标为后续的物理模型试验、揭示内外动力耦合作用机制等提供了科学依据。滑带土抗剪强度实验采用大型直剪仪，考虑不同含水率共计3组。大型直剪试验分别针对3个典型滑坡，制作了不同含水率下的重塑的滑带土试件，得到不同含水率下滑带土抗剪强度-法向压力关系曲线，进而得出不同含水率条件下滑带土的抗剪强度指标。

This study collected physical and mechanical indexes of slip zone soils and bedrock from three typical major landslides (Zhanong Landslide, Zongrong Village Landslide, Xiaguiwa Landslide) located in the Jinsha River Basin of the Qinghai-Tibet Plateau. The physical and mechanical indexes of the slip zone soils were primarily obtained through large-scale direct shear tests. The acquired dataset provides a scientific foundation for subsequent physical model experiments and the clarification of the coupling mechanism of endogenic and exogenic dynamic processes. For the shear strength tests of slip zone soils, a large-scale direct shear apparatus was utilized, with a total of three test groups designed based on different water contents. Large-scale direct shear tests were conducted for each of the three typical landslides: remolded slip zone soil specimens under various water contents were fabricated, and the shear strength-normal stress relationship curves of slip zone soils under different water contents were obtained. Subsequently, the shear strength indexes of slip zone soils under varying water contents were derived.

搜集汇总

背景与挑战

背景概述

该数据集提供了2020年至2022年间在青藏高原金沙江流域三个典型重大滑坡（扎农、宗绒村、下归洼）采集的滑带土大型直剪实验数据，重点测量了不同含水率条件下的抗剪强度等物理力学指标。数据以Excel格式存储，旨在为滑坡灾害的物理模型研究和内外动力耦合机制分析提供基础科学依据。