地基土水工建筑物滑动计算-《江苏水利》

文章信息/Info

Author(s):: ZHOU Junliang; Water Resources Department of Jiangsu Province, Nanjing 210029, Jiangsu

Keywords:: slideshear test of indoor soilsample; slideshear test of dragged load plate; ultimate slideshear coefficient of subbed soil; displacement and slideform of hydraulic structure; improved calculation method

摘要:: 地基土样室内剪切试验是对该地基土样的试验，是土力学学科技术。基坑小型压板剪切试验是该地基土承载建筑物压应力的滑动试验，是土力学学科技术发展到工程技术。研究该工程技术，确定地基土开挖回弹再压缩的滑动承载能力降低数值；去除地基土在压力强度降低的超固结强度峰值；简化确定地基土的极限滑动剪切强度包线；确定地基土设计极限滑动剪切系数；确定在压应力大于作用该地基土发生滑动；根据地基土和水工建筑物底板的位移、滑动不同型式；确定地基土体蠕变滑动轮廓计算方法。按方法加固和改建各1座已建水工建筑物获得成功，计算成果符合实物工况。

Abstract:: The indoor soil specimen shear test is the foundation soil sample test, which is the mechanical science.Small-scale compression plate shear test is the foundation soil bearing the building compressive stress sliding test, but also the development of soil mechanics technology to engineering technology. The engineering technology is studied to determine the foundation soil excavation rebound compression of the sliding bearing capacity number. The limit sliding shear strength envelope of foundation soil is simplified determined and the limit sliding shear coefficient is determined.According to displacement of foundation soil and hydraulic structure, different sliding types, calculation method forcreep sliding profile of foundation soil is determined. Two hydraulic structures have been put into operation reviewed or rebuilt by this method and the results are accord with real conditions.