Dynamic stress accumulation model of granite residual soil under cyclic loading based on small-size creep tests
Dynamic stress accumulation model of granite residual soil under cyclic loading based on small-size creep tests
复制标题
基于小尺寸蠕变试验的花岗岩残积土循环荷载动应力累积模型
DOI：
10.1007/s11771-019-4043-5
复制
发表时间：
2019-04
影响因子：
4.4
通讯作者：
Zeng Yuchao
中科院分区：
文献类型：
--
作者：
Tang Liansheng;Zhao Zhanlun;Chen Haokun;Wu Yanping;Zeng Yuchao
通过对花岗岩残积土在100 kPa预应力下的小尺寸蠕变试验，研究了花岗岩残积土在不同应力水平下的蠕变特性，得到了3种不同类型的应变曲线，根据花岗岩残积土在不同应力水平下的蠕变特性，运用流变学理论建立了花岗岩残积土的蠕变模型，并根据试验数据确定了模型的相关参数，进而在所建立的蠕变模型的基础上，推导了循环荷载作用下花岗岩残积土中动应力积累的理论模型，发现在循环荷载作用下，动应力积累存在一个门槛值，最后，通过对花岗岩残积土小尺寸试样在不同循环荷载作用下的动应力积累规律的研究，并将试验结果与理论结果进行对比，验证了理论模型的有效性。
The creep behaviors of granite residual soil with pre-stress of 100 kPa was investigated by a series of small size creep tests.Three different types of strain curves were obtained at different stress levels.Based on creep characteristics of the granite residual soil under different stress levels,a creep model of the granite residual soil was established by rheological theory,and related parameters of the model were determined according to the experimental data at the same time.Further on,based on the established creep model,a theoretical model of dynamic stress accumulation in the granite residual soil under cyclic loading was deduced.It is found that there is a threshold of dynamic stress accumulation in this theoretical model.The dynamic stress accumulation laws of the granite residual soil are different under different cyclic loading stress.Finally,with the dynamic stress accumulation laws in the small-size samples of granite residual soil under different cycle loading studied and the experimental results comparing with the theoretical results,it verifies the validity of the theoretical model.
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影响因子：
3.7
作者：
S. Werkmeister;A. Dawson;F. Wellner
通讯作者：
S. Werkmeister;A. Dawson;F. Wellner
影响因子：
6.5
作者：
W. Markgraf;R. Horn;S. Peth
通讯作者：
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DOI：
10.1061/41104(377)62
发表时间：
2010-05
期刊：
--
影响因子：
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作者：
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通讯作者：
N. Garg;F. Pecht;Q. Jia
影响因子：
7.4
作者：
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通讯作者：
Zhao, Shu-Kai
影响因子：
6.5
作者：
C. Wiermann;T. Way;R. Horn;A. Bailey;E. C. Burt
通讯作者：
C. Wiermann;T. Way;R. Horn;A. Bailey;E. C. Burt