首页> 外文会议>Geotechnical frontiers >Observation of the Progressive Failure Mechanism of Reinforced Foundation Soil Using the Digital Image Correlation Technique
【24h】

Observation of the Progressive Failure Mechanism of Reinforced Foundation Soil Using the Digital Image Correlation Technique

机译:用数字图像相关技术观察加筋地基的渐进破坏机理

获取原文

摘要

Geosynthetic materials have been widely used in reinforcing the weak soil underneath the shallow foundations in the recent years. Many previous static loading studies have shown that the bearing capacity of the soil with a shallow foundation on the surface is greatly increased when the soil is reinforced by a layer of geosynthetic material. The present study visualizes the deformation field and failure mechanism in geosynthetic-reinforced soil underlying shallow foundations using digital image correlation (DIC) technique. A small-scale calibration chamber was built to model a plane-strain condition for a strip footing system. A series of indentation tests were conducted using a rigid model strip footing on unreinforced soil and with soil reinforced with geonet and woven fabric geotextile. The effect of number of reinforcement layers on the deformation field within the bearing soil has been studied. The results highlighted the suitability of DIC technique to visualize the deformation in laboratory-scale experiments and clearly illustrated the effect of reinforcement on progressive failure mechanism of model footing.
机译:近年来,土工合成材料已被广泛用于加固浅层基础下的薄弱土壤。以前的许多静载荷研究表明,当土壤由一层土工合成材料加固时,表面浅层基础的土壤的承载力会大大提高。本研究使用数字图像相关技术(DIC)可视化了浅层地基中加筋的土工合成材料加筋土的变形场和破坏机理。建立了一个小型校准室,以模拟带钢立足系统的平面应变条件。一系列压痕测试是使用刚性模型条形基础在未加固的土壤上以及用土工网和机织土工布加固的土壤上进行的。研究了增强层数量对轴承土内部变形场的影响。结果强调了DIC技术在实验室规模的实验中可视化变形的适用性,并清楚地说明了增强对模型基础渐进破坏机制的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号