华北水利水电学院：《土力学》课程教学资源（PPT课件）土的抗剪强度

土的抗剪强度 华北水利水电学院土力学课程组

土的抗剪强度 华北水利水电学院土力学课程组

概述 土的破坏主要是由于剪切 路堤 引起的,剪切破坏是土体 破坏的重要特点 (a) 工程时间中与土的抗剪强 度有关的工程主要有以下 3类 (1)土质土坝的稳定 挡土墙 (2)土压力 (3)地基的承载力问题 基础

概 述 ▪ 土的破坏主要是由于剪切 引起的，剪切破坏是土体 破坏的重要特点 ▪ 工程时间中与土的抗剪强 度有关的工程主要有以下 3类 （1）土质土坝的稳定 （2）土压力 （3）地基的承载力问题

工程实例一土坡稳定 This photo shows failure of a tailings dam retaining gypsum tailings in Florida.It can be seen that the wet gypsum tailings flowed like a viscous liquid when the dam failed IG. 3 FAILURE OF A GYPSUM TAIL INGS POND Duncan

工程实例－土坡稳定 ▪ This photo shows a failure of a tailings dam retaining gypsum tailings in Florida. It can be seen that the wet gypsum tailings flowed like a viscous liquid when the dam failed

工程实例一土坡稳定 This tailings dam in South africa retained tailings from a platinum mine. Note the very flat slope formed by the tailings 2的 as they came to rest, indicating their very low shear strength

工程实例－土坡稳定 ▪ This tailings dam in South Africa retained tailings from a platinum mine. Note the very flat slope formed by the tailings as they came to rest, indicating their very low shear strength

工程实例一土坡稳定 The slide extended for about 1100 feet along the embankment. At the north end. near the inlet outlet structure visible in this photo, the scarp at the top of the slide was about 30 feet high At the bottom of the slope the toe of the slide moved horizontally about 30 feet out into the reservoir

工程实例－土坡稳定 ▪ The slide extended for about 1100 feet along the embankment. At the north end, near the inlet￾outlet structure visible in this photo, the scarp at the top of the slide was about 30 feet high. At the bottom of the slope the toe of the slide moved horizontally about 30 feet out into the reservoir

工程实例一土坡稳定 The slide in the upstream shell is shown here with the reservoir emptied The paved road surface identifies the former crest of the dam

工程实例－土坡稳定 ▪ The slide in the upstream shell is shown here with the reservoir emptied. The paved road surface identifies the former crest of the dam

工程实例一土坡稳定 CA Dept of Safety af Dams

工程实例－土坡稳定

工程实例一土坡稳定 CA Dept of safety of Dams

工程实例－土坡稳定

工程实例一地基承载力问题 NSF Reconnaissance Team

工程实例－地基承载力问题

工程实例一地基承载力问题

工程实例－地基承载力问题