Case studies of earthen structures for hydraulic projects damaged under low confining stress during earthquake

YANG Yu-sheng; WEN Yan-feng; LIU Xiao-sheng; ZHAO Jian-ming   LIU Qi-wang

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Case studies of earthen structures for hydraulic projects damaged under low confining stress during earthquake

更新时间：2026-06-25

- Case studies of earthen structures for hydraulic projects damaged under low confining stress during earthquake
- Vol. 33, Issue 9, (2012)
- 作者机构：
  
  1. 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京,100048
  2. 中国水利水电科学研究院水利部水工程建设与安全重点实验室,北京,100048
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV131
- Online First：12 September 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
YANG Yu-sheng, WEN Yan-feng, LIU Xiao-sheng, et al. Case studies of earthen structures for hydraulic projects damaged under low confining stress during earthquake[J]. 2012, 33(9).
DOI：

YANG Yu-sheng, WEN Yan-feng, LIU Xiao-sheng, et al. Case studies of earthen structures for hydraulic projects damaged under low confining stress during earthquake[J]. 2012, 33(9). DOI：

摘要

实际工程活动与低应力下土石料工程性质密切相关。总结了与低应力条件相关的工程活动，在总结分析以往地震中堤防和坝体滑坡案例的基础上，指出滑坡深度通常小于7 m，其上覆有效应力大多小于100 kPa。在对106组地震液化数据资料分析的基础上，指出地基液化大多发生在上覆有效应力低于100 kPa的低应力条件下。在目前的研究中，通常只关注中、高应力条件下土石料的工程性质。在应用中低应力区的土石料计算参数取值通常与中、高应力条件下获得的强度和变形参数一致，而高、低应力条件下土石料的强度和变形特性是不同的，这种计算参数取值方法的适用性存在疑虑。因此，研究低应力条件下土石料的工程性质，探讨数值计算中低应力条件下土石料计算参数的取值方法，具有重要的工程意义和科学价值。

Abstract

Practical engineering activities are closely related to engineering properties of soil-rock materials under low confining stress. Cases of landslides of Levees and dams due to earthquake were summarized and analyzed; and it revealed that the depth of landslides was usually less than 7m

and the effective overburden stress was usually not more than 100 kPa. 106 cases of the foundation liquefaction were analyzed; and it is revealed that the foundation liquefaction occurred mostly at where the effective overburden stress below 100 kPa. In the present study

only the properties of soil-rock materials under high confining stress are paid great attention

and in applications the parameters of soil-rock materials under low confining stress are assigned the same as those under medium to high confining stress; while the reliability of this parameter selection method is disputable for the properties of soil-rock materials are seriously dependent on the stress. Therefore

study of the engineering properties of soil-rock materials under low confining stress and discussing the corresponding parameters selection method in numerical simulation have great significance both to engineering practice and scientific research.

关键词

Keywords

references

Views

1888

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Optimal design of lining structure in artificial cavern of compressed air energy storage

Elasto-viscoplastic bounding surface model for unsaturated time-dependent soils incorporating non-stationary flow rule

Evaluation of liquefaction flow characteristics and soil state of saturated sand based on tension and compression apparent viscosity

Strength development model for slurry-like mud treated by physicochemical combined method considering preloading stress

Mechanical properties and microstructural evolution of peaty soils subjected to freeze-thaw cycles

Related Author

No data

Related Institution

No data

AI问答

⁰