堆石料非饱和湿化变形特性研究

doi:10.13722/j.cnki.jrme.2021.0018

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (836 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The unsaturated wetting deformation induced by rainfall infiltration is one of the leading sources of post-construction deformation of earth-rockfill dams，which significantly impacts the stress and deformation behavior of structures. In this study，a modified triaxial apparatus equipped with a micro-hole water distributor was newly developed to simulate the unsaturated infiltration process of rainfall in complex triaxial stress states. Then，the apparatus was used to test the unsaturated wetting deformation behavior of a rockfill material from the Nuozhadu high earth-rockfill dam，under different stress and saturation conditions. The evolution of unsaturated wetting deformation at different stages was investigated. Results show that the wetting deformation of the rockfill material mainly occurs at a relatively low water content. Generally，the unsaturated wetting deformation that exhibits similar features to the saturated wetting deformation can be characterized by the generalized-load model. The unsaturated wetting strain of rockfill material can be divided into two components，i.e.，the instantaneous wetting strain and the wet-state creep strain. The former possesses the characteristics of parallelism，and the latter exhibits features similar to those of general dry-state creep deformation.

Key words： soil mechanics rockfill material unsaturated wetting deformation rainfall infiltration

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YIN Yin1
	2
	WU Yongkang3
	DING Yanhui2
	4
	ZHANG Bingyin2
	SUN Xun2

Cite this article:

YIN Yin1,2,WU Yongkang3, et al. Experimental study on the unsaturated wetting deformation behaviors of rockfill materials[J]. , 2021, 40(S2): 3455-3463.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.0018 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/IS2/3455

[1]	BAUER E，FU Z，LIU S. Hypoplastic constitutive modeling of wetting deformation of weathered rockfill materials[J]. Frontiers of Architecture and Civil Engineering in China，2010，4(1)：78-91.
[2]	NAYLOR D J，MARANHA J R，NEVES E M D，et al. A back-analysis of Beliche Dam[J]. Géotechnique，1997，47(2)：221-233.
[3]	ALONSO E E，OLIVELLA S，PINYOL N M. A review of Beliche Dam[J]. Géotechnique，2005，55(4)：267-285.
[4]	JUSTO J L，DURAND P. Settlement-time behaviour of granular embankments[J]. International Journal for Numerical and Analytical Methods in Geomechanics，2000，24(3)：281-303.
[5]	CETIN H，LAMAN M，ERTUNÇ A. Settlement and slaking problems in the world's fourth largest rock-fill dam，the Ataturk Dam in Turkey[J]. Engineering Geology，2000，56(3/4)：225-242.
[6]	NOBARI E S，DUNCAN J M. Movements in dams due to reservoir filling[C]// Specialty Conference on Performance of Earth and Earth-Supported Structures. New York，United States：[s. n.]，1972：797-815.
[7]	刘祖德. 土石坝变形计算的若干问题[J]. 岩土工程学报，1983，5(1)：1-13.(LIU Zude. Some problems about the calculation of deformation of earth-rock dams[J]. Chinese Jounal of Geotechnical Engineering，1983，5(1)：1-13.(in Chinese))
[8]	茆大炜，杜少华，李地元，等. 基于大型三轴试验的蚀变花岗岩力学行为及浸水湿化研究[J]. 岩石力学与工程学报，2020，39(9)：1 819-1 831.(MAO Dawei，DU Shaohua，LI Diyuan，et al. Mechanical behaviors and wetting-induced deformation of metamorphic granite based on large-scale triaxial test[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(9)：1 819-1 831.(in Chinese))
[9]	魏松，朱俊高. 粗粒料三轴湿化颗粒破碎试验研究[J]. 岩石力学与工程学报，2006，25(6)：1 252-1 258.(WEI Song，ZHU Jungao. Study on wetting breakage of coarse-grained materials in triaxial test[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(6)：1 252-1 258.(in Chinese))
[10]	沈广军，殷宗泽. 粗粒料浸水变形分析方法的改进[J]. 岩石力学与工程学报，2009，28(12)：2 437-2 444.(SHEN Guangjun，YIN Zongze. Improvement of wetting deformation analysis method of coarse-grained materials[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2 437-2 444.(in Chinese))
[11]	ZHOU X，CHI S，JIA Y. Wetting deformation of core-wall rockfill dams[J]. International Journal of Geomechanics，2019，19(8)：04019084.
[12]	程展林，左永振，丁红顺，等. 堆石料湿化特性试验研究[J]. 岩土工程学报，2010，32(2)：243-247.(CHENG Zhanlin，ZUO Yongzhen，DING Hongshun，et al. Wetting characteristics of coarse-grained materials[J]. Chinese Jounal of Geotechnical Engineering，2010，32(2)：243-247.(in Chinese))
[13]	司韦. 非饱和土的增湿试验及模型研究[硕士学位论文][D]. 北京：清华大学，2006.(SI Wei. Moistening test study and model of unsaturated soil[M. S. Thesis][D]. Beijing：Tsinghua University，2006.(in Chinese))
[14]	张丹，李广信，张其光. 软岩粗粒土增湿变形特性研究[J]. 水力发电学报，2009，28(2)：52-55.(ZHANG Dan，LI Guangxin，ZHANG Qiguang. Research on moistening test of coarse-grained soil with weak rock[J]. Journal of Hydroelectric Engineering，2009，28(2)：52-55.(in Chinese))
[15]	丁艳辉，袁会娜，张丙印. 堆石料非饱和湿化变形特性试验研究[J]. 工程力学，2013，30(9)：139-143.(DING Yanhui，YUAN Huina，ZHANG Bingyin. Unsaturated wetting deformation characteristics of rockfill materials[J]. Engineering Mechanics，2013，30(9)：139-143.(in Chinese))
[16]	杨贵，刘汉龙，朱俊高. 粗粒料湿化变形数值模拟研究[J]. 防灾减灾工程学报，2012，32(5)：535-551.(YANG Gui，LIU Hanlong，ZHU Jungao. Numerical simulation study on wetting deformation of coarse aggregate materials[J]. Journal of Disaster Prevention and Mitigation Engineering，2012，32(5)：535-551.(in Chinese))
[17]	魏松. 粗粒料浸水湿化变形特性试验及其数值模型研究[博士学位论文][D]. 江苏：河海大学，2006.(WEI Song. Study on wetting deformation behaviour and numerical model of coarse-grained materials[Ph. D. Thesis][D]. Jiangsu：Hohai University，2006.(in Chinese))
[18]	丁艳辉. 堆石体降雨入渗及湿化变形特性试验研究[博士学位论文][D]. 北京：清华大学，2012.(DING Yanhui. Test study on rainfall infiltration characteristics and wetting deformation behavior of rockfill[Ph. D. Thesis][D]. Beijing：Tsinghua University，2012.(in Chinese))
[19]	丁艳辉，张丙印，钱晓翔，等. 堆石料湿化变形特性试验研究[J]. 岩土力学，2019，40(8)：2 975-2 981.(DING Yanhui，ZHANG Bingyin，QIAN Xiaoxiang，et al. Experimental study of the characteristics of wetting deformation of rockfill materials[J]. Rock and Soil Mechanics，2019，40(8)：2 975-2 981.(in Chinese))
[20]	YIN Y，WU Y，ZHANG B，et al. Two-stage wetting deformation behaviour of rock-fill material[J]. Environmental Geotechnics，2020：1-14.