Experimental Study on Long-time Deformation of Rockfill under Wetting-drying Cycle Effect

王海俊; 殷宗泽

doi:10.13409/j.cnki.jdpme.2012.04.017

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Experimental Study on Long-time Deformation of Rockfill under Wetting-drying Cycle Effect

更新时间：2025-12-11

- Experimental Study on Long-time Deformation of Rockfill under Wetting-drying Cycle Effect
- Vol. 32, Issue 4, Pages: 488-493+501(2012)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2012.04.017
  CLC： V641.4
- Published：2012
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[1]王海俊,殷宗泽.干湿循环作用对堆石长期变形影响的试验研究[J].防灾减灾工程学报,2012,32(04):488-493+501.

王海俊, 殷宗泽. Experimental Study on Long-time Deformation of Rockfill under Wetting-drying Cycle Effect[J]. 2012, 32(4): 488-493+501.
[1]王海俊,殷宗泽.干湿循环作用对堆石长期变形影响的试验研究[J].防灾减灾工程学报,2012,32(04):488-493+501. DOI： 10.13409/j.cnki.jdpme.2012.04.017.

王海俊, 殷宗泽. Experimental Study on Long-time Deformation of Rockfill under Wetting-drying Cycle Effect[J]. 2012, 32(4): 488-493+501. DOI： 10.13409/j.cnki.jdpme.2012.04.017.

摘要

堆石体存在流变

不仅与荷载有关

而且与日晒雨淋引起的干湿循环有关。通过室内试验模拟日晒雨淋引起的干湿循环作用

研究其对堆石体长期变形的影响。试验结果表明

荷载作用流变很快趋于稳定

测得的流变量也相对较小;偏应力状态干湿循环作用引起的长期变形非常明显

其变形占后期变形总量的50%70%

且后期变形的衰减远小于荷载单独作用引起的流变

这对于坝体的安全和稳定的影响是不容忽视的。根据试验研究揭示的变形规律

本文建立了相应的计算干湿循环变形的数值模型

可用于有限元计算。

Abstract

Creep deformation of rockfill has relations with not only load but also wetting-drying cycle

which is caused by solarization and rainfall.Test was taken to simulate the wetting-drying cycle effect caused by solarization and rainfall in laboratory

which is done to study the influence of wetting-drying cycle on rockfill longtime deformation.Test result shows that deformation caused by load function tends to be stable quickly and occupies only a small part in total creep deformation

while the creep deformation caused by wetting-drying cycle is huge and long-time developing with cycles.It takes about 50%～70% in total creep deformation

and has relations with stress.So it has major impact on dam′s stability and safety.According to the analysis of wetting-drying cycle creep principle

numerical model is put forward to calculate the deformation by wettingdrying cycles

and it can be applied in finite element analysis.

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Keywords

references

堆石流变试验及双屈服面流变模型的研究 [J]. 王海俊,殷宗泽. 岩土工程学报 . 2008(07)

堆石料长期变形的室内试验研究 [J]. 王海俊,殷宗泽. 水利学报 . 2007(08)

混凝土面板堆石坝堆石料流变特性试验研究 [J]. 李国英,米占宽,傅华,方维凤. 岩土力学 . 2004(11)

粗粒料流变研究的现状与展望 [J]. 汪明元,何晓民,程展林. 岩土力学 . 2003(S2)

堆石流变的机理及研究方法初探 [J]. 王勇. 岩石力学与工程学报 . 2000(04)

西北口面板堆石坝蓄水7年变形分析 [J]. 彭正光. 水利水电技术 . 1999(09)

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