Numerical Simulation of Consolidation Settlement of Pervious Concrete Pile Composite Foundation under Road Embankment
Numerical Simulation of Consolidation Settlement of Pervious Concrete Pile Composite Foundation under Road Embankment
复制标题
路堤下透水混凝土桩复合地基固结沉降数值模拟
DOI：
10.1061/(asce)gm.1943-5622.0000542
复制
发表时间：
2016-02
影响因子：
3.7
通讯作者：
Weize Tang
中科院分区：
文献类型：
--
作者：
Jiong Zhang;Xinzhuang Cui;Dan Huang;Qing Jin;Junjie Lou;Weize Tang
透水混凝土具有高渗透性、高强度等优点，适合于提高地基承载力。为减少高速公路路堤的沉降量，黄河三角洲某高速公路采用透水混凝土桩(PCP)复合地基。为了研究PCPS的工作机理，基于有限差分法和Biot固结理论建立了数值模型，并用现场试验数据进行了验证。对PCP复合地基在路堤荷载作用下的超孔压、桩土应力比、侧向位移和沉降进行了数值计算，并与碎石桩和低等级混凝土桩复合地基进行了比较。对比表明，PCP复合地基中超孔隙水压力消散最快，这表明PCP复合地基可以显著缓解超孔隙水压力的发展，从而提高地基强度。此外..。
Abstract Having the advantages of high permeability and high strength, pervious concrete is suitable for improving ground-bearing capacity. In the Yellow River Delta, a pervious concrete pile (PCP) composite foundation has been constructed to reduce settlement of an expressway embankment. To study the working mechanism of PCPs, a numerical model was constructed based on the finite-difference method and Biot’s consolidation theory, which was validated by data from in situ tests. The excess pore-water pressure, pile–soil stress ratio, lateral displacement, and settlement of the PCP composite foundation under the loading of the road embankment were numerically calculated and compared with those of gravel pile and low-grade concrete pile composite foundations. Comparisons show that the dissipation of excess pore-water pressure in the PCP composite foundation was fastest, which implied that PCPs can significantly mitigate the development of excess pore-water pressure and thus enhance subsoil strength. Furtherm...
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影响因子：
3.1
作者：
A. P. F. Pinto;J. Rodrigues
通讯作者：
A. P. F. Pinto;J. Rodrigues
HRBF400钢筋混凝土柱抗震性能试验研究
影响因子：
1.2
作者：
Zhang Jiwen;Cao Dafu;Wang Biyuan;Pa linglong
通讯作者：
Pa linglong
影响因子：
7.4
作者：
P. Villard
通讯作者：
P. Villard
DOI：
10.1016/s1462-0758(01)00065-6
发表时间：
2002-09
期刊：
Urban Water
影响因子：
--
作者：
W. Schlüter;C. Jefferies
通讯作者：
W. Schlüter;C. Jefferies
影响因子：
1.2
作者：
K. S. Rao;M. Allam;R. Robinson
通讯作者：
K. S. Rao;M. Allam;R. Robinson