[1]张展弢,张胜利,党发宁,等.小粒径风化石料填筑堆石坝地震反应分析[J].郑州大学学报(工学版),2005,26(04):34-38.[doi:10.3969/j.issn.1671-6833.2005.04.008]
 ZHANG Zhanhan,ZHANG Shengli,Dang Fa Ning,et al.Seismic response analysis of small-particle weathered rockfill dams[J].Journal of Zhengzhou University (Engineering Science),2005,26(04):34-38.[doi:10.3969/j.issn.1671-6833.2005.04.008]
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小粒径风化石料填筑堆石坝地震反应分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
26
期数:
2005年04期
页码:
34-38
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Seismic response analysis of small-particle weathered rockfill dams
作者:
张展弢张胜利党发宁等.
长安大学公路学院,陕西,西安,710064, 陕西省水电工程局,陕西,西安,710068, 西安理工大学岩土工程研究所,陕西,西安,710048
Author(s):
ZHANG Zhanhan; ZHANG Shengli; Dang Fa Ning; etc
关键词:
小粒径风化石料 混凝土面板堆石坝 现场试验 室内试验 地震反应分析
Keywords:
DOI:
10.3969/j.issn.1671-6833.2005.04.008
文献标志码:
A
摘要:
国家规范对混凝土面板堆石坝筑坝材料有较为严格的要求,为了验证库区滑坡体开挖区颗粒级配不良的小粒径微风化石料能否作为大水沟水库混凝土面板堆石坝坝体主堆石区填料,对该种石料进行了现场压实试验.对应于现场试验所能达到的最大密实度,通过室内试验,取得了此类石料在该种状态下的变性模量Es、泊松比v、渗透系数K及三轴快剪力学参数c,ψ.并依据室内外试验参数,采用一维剪切层法,对该坝进行了在7级地震烈度情况下的动力反应分析,求得了该坝的最大动剪应变和剪应力反应分布,坝体内绝对最大动剪应变为4.41×10-3,绝对最大动剪应力为40kPa,远小于坝体本身的强度,验证了该种石料可以作为面板堆石坝的填料,拓宽了混凝土面板堆石坝填筑材料的选择范围.
Abstract:
In order to verify whether the small-particle size breeze fossil material with poor particle gradation in the excavation area of the landslide body in the reservoir area can be used as the filler of the main rockfill area of the concrete panel rockfill dam body in the large water gou reservoir, the on-site compaction test of this kind of stone was carried out. Corresponding to the maximum compactness that can be achieved in the field test, the denaturation modulus Es, Poisson’s ratio v, permeability coefficient K and triaxial fast shear mechanical parameters c of such stones in this state were obtained through indoor test ψ, and the dynamic response analysis of the dam under the condition of magnitude 7 seismic intensity was carried out by the one-dimensional shear layer method according to the indoor and outdoor test parameters, and the maximum dynamic shear strain and shear stress reaction distribution of the dam were obtained, and the absolute maximum dynamic shear strain in the dam body was 4.41×10-3. The absolute maximum dynamic shear stress is 40kPa, which is much less than the strength of the dam itself, which verifies that this kind of stone can be used as the filler of panel rockfill dams, and broadens the selection range of filling materials for concrete facet rockfill dams.

更新日期/Last Update: 1900-01-01