深厚覆盖层上土石坝应力应变三维仿真分析

基金项目:

黄河水利职业技术学院校内科研基金:深厚覆盖层上沥青混凝土心墙坝应力应变仿真分析(2014QNKY013)

详细信息

Three-dimensional Simulation Analysis of Earth and Rockfill Dam Stress-strain over Deep Covering Layer

1. Yellow River Conservancy Technical Institute, Kaifeng 475004, Henan, China;
2. Engineering Technology Research Center of Henan Province University of Small Watershed Conservancy, Kaifeng 475004, Henan, China

摘要: 以有限元方法为基础，对新疆吐鲁番二塘沟水利枢纽工程的土石坝进行了三维仿真计算，并对堆石体和心墙在竣工期和满蓄期的应力应变极值进行了分析。分析结果表明，该土石坝的设计是合理的，堆石体和心墙不会发生拉压破坏或剪切破坏；心墙底部向两侧发生大约7 cm的轻微侧胀，成为比较危险的部位，在设计和施工中应予以高度重视。
- 新疆吐鲁番二塘沟水利枢纽 /
- 土石坝 /
- 应力应变 /
- 三维仿真 /
- 本构模型
Abstract: In this paper，it conducts the three-dimensional simulation calculation on the earth and rockfill dam of Ertanggou hydro-project in Sinkiang Turpan based on the finite element method，and analyzes the stress-strain extreme values of rockfill body and core-wall after the completion period and full storage period.The result shows that the design of the earth and rockfill dam is reasonable，the rockfill body and core-wall won’t appear tension-compression damage and shear failure.At the bottom of the core-wall，it appears about 7cm slight inflation towards to both sides and which makes it become the dangerous place.So we should pay more attention to the design and construction process.
- Sinkiang Turpan Ertanggou hydro-project /
- earth and rockfill dam /
- stress-strain /
- threedimensional simulation /
- constitutive model

[1]	孔宪京,余翔,邹德高.沥青混凝土心墙坝三维有限元静动力分析[J].大连理工大学学报,2014,54(2):197-203.
[2]	代凌辉.二塘沟水库深厚覆盖层上沥青混凝土心墙坝应力与变形计算分析[D].乌鲁木齐:新疆农业大学,2011.
[3]	沈珠江.土体结构性的数学模型—21世纪土力学的核心问题[J].岩土工程学报,1996,18(1):95-97.
[4]	李广信.高等土力学[M].北京:清华大学出版社,2002:50-56.
[5]	Goodman R E,Taylor R L,Brekke T L.A Model for the Mechanics of Jointed Rock[J].Journal of the Soil M echanics and Foundations Division,ASCE,1968,94(3):637-659.
[6]	Duncan JM,Chang Chin-yung.Nonlinear analysis of stress and strain in soils[J].Journal of the Soil Mechanics and Foundations Division,ASCE,1970,96(5):1629-1653.
[7]	陈卫忠,伍国军,贾善坡.ABAQUS在隧道及地下工程中的应用[M].北京:中国水利水电出版社,2010:281-342.