Pressuremeter tests and parameter back analysis of deep silty clay

YANG Yu-sheng; LIU Xiao-sheng; PENG Wen-ming; ZHAO Jian-ming; ZHU Kai-bin; ZHU Bin

doi:10.11779/CJGE2022S2034

Volume 44 Issue S2

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Chinese Journal of Geotechnical Engineering > 2022 > 44(S2): 155-159. > DOI: 10.11779/CJGE2022S2034

YANG Yu-sheng, LIU Xiao-sheng, PENG Wen-ming, ZHAO Jian-ming, ZHU Kai-bin, ZHU Bin. Pressuremeter tests and parameter back analysis of deep silty clay[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S2): 155-159. DOI: 10.11779/CJGE2022S2034

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Pressuremeter tests and parameter back analysis of deep silty clay

YANG Yu-sheng^{1, 2,},
LIU Xiao-sheng^{1, 2},
PENG Wen-ming³,
ZHAO Jian-ming^{1, 2},
ZHU Kai-bin^{1, 2},
ZHU Bin^{1, 2}

1.
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin IWHR, Beijing 100048, China
2.
The Ministry of Water Conservancy and Water Engineering Seismic Emergency Support Engineering Technology Research Center, Beijing 100048, China
3.
PowerChina Chengdu Engineering Corporation Limited, Chengdu 610072, China

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Received Date: December 05, 2022
Available Online: March 26, 2023

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Abstract

Abstract

The deep overburden layer has significant in-situ structural effects, and how to determine the constitutive model parameters by considering the in-situ structure effects is related to the reliability of safety assessment results. The in situ pressuremeter tests are carried out on the silty clay in deep overburden layer, and the load-displacement curves are measured, and the characteristic values of mechanical indexes such as bearing capacity characteristic value and pressuremeter modulus at corresponding depths are determined. Combined with the results of the in-situ pressuremeter tests and laboratory triaxial test, the constitutive model parameters of silty clay in deep overburden are determined by using the PBP3 back analysis program based on the harmony algorithm. The process of the pressuremeter tests is simulated by using the back analysis parameters and laboratory test parameters respectively, and the rationality of the back analysis parameters is demonstrated by comparing with the measured load-displacement curves.
- deep silty clay,
- in-situ structural effect,
- pressuremeter test,
- parameter back analysis

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References

[1]	蒋彭年. 土的本构关系[M]. 北京: 科学出版社, 1982. JIANG Peng-nian. Constitutive Relation of Soil[M]. Beijing: Science Press, 1982. (in Chinese)
[2]	黄文熙. 土的工程性质[M]. 北京: 水利电力出版社, 1983. HUANG Wen-xi. Engineering Properties of Soil[M]. Beijing: Water Conservancy and Hydropower Press, 1983. (in Chinese)
[3]	NAYLOR D J. Stress-Strain Laws for Soil, Development in Soil Mechanics[R]. Edited by Scott C R, 1975.
[4]	曾以宁, 屈智炯, 刘开明, 等. 土的非线性K-G模型的试验研究[J]. 成都科技大学学报, 1985, 17(4): 143–149. https://www.cnki.com.cn/Article/CJFDTOTAL-SCLH198504019.htm ZENG Yi-ning, QU Zhi-jiong, LIU Kai-ming, et al. An experimental study of nonlinear K-G model for soils[J]. Journal of Chengdu University of Science and Technology, 1985, 17(4): 143–149. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SCLH198504019.htm
[5]	谢定义. 土动力学[M]. 西安: 西安交通大学出版社, 1989. XIE Ding-yi. Soil Dynamics[M]. Xi'an: Xi'an Jiao Tong University Press, 1989. (in Chinese)
[6]	顾淦臣. 土石坝地震工程[M]. 南京: 河海大学出版社, 1989. GU Gan-chen. Earth Dam Earthquake Engineering[M]. Nanjing: Hohai University Press, 1989. (in Chinese)
[7]	刘小生, 汪闻韶, 赵冬. 饱和原状砂土的静、动力强度特性试验研究[J]. 水利学报, 1991, 22(11): 41–46. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB199111005.htm LIU Xiao-sheng, WANG Wen-shao, ZHAO Dong. Experimental study on static and dynamic strength characteristics of saturated sandy soil[J]. Journal of Hydraulic Engineering, 1991, 22(11): 41–46. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB199111005.htm
[8]	刘小生, 赵冬, 汪闻韶. 原状结构性对饱和砂土动力变形特性影响试验研究[J]. 水利学报, 1993, 24(2): 32–42. LIU Xiao-sheng, ZHAO Dong, WANG Wen-shao. Experimental study on dynamic deformation characteristics of saturated sand with shape structure[J]. Effects of in situ fabric on the dynamic deformation behavior of saturated sand[J]. Journal of Hydraulic Engineering, 1993, 24(2): 32–42. (in Chinese)
[9]	刘小生, 汪闻韶, 常亚屏. 饱和原状砂动力特性研究[R]. 国家自然科学基金重大项目"岩土与水工建筑物相互作用"研究成杲汇编, 1992. LIU Xiao-sheng, WANG Wen-shao, CHANG Ya-ping. Study on Dynamic Characteristics of Saturated Undisturbed Sand[R]. Compilation of the Research Achievements on the Interaction Between Rock and Soil and Hydraulic Structures in Major Projects of the National Natural Science Foundation of China, 1992. (in Chinese)
[10]	刘启旺, 杨玉生, 刘小生, 等. 考虑原位结构效应确定深厚覆盖层土体的动力变形特性参数[J]. 水利学报, 2015, 46(9): 1047–1054. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201509005.htm LIU Qi-wang, YANG Yu-sheng, LIU Xiao-sheng, et. al. Test of dynamic deformation parameters of deep alluvial soils considering in-situ structural effects[J]. Journal of Hydraulic Engineering, 2015, 46(9): 1047–1054. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201509005.htm
[11]	杨玉生, 刘小生, 赵剑明, 等. 考虑原位结构效应确定深厚覆盖层土体的动强度参数[J]. 水利学报, 2017, 48(4): 446–456. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201704008.htm YANG Yu-sheng, LIU Xiao-sheng, ZHAO Jian-ming, et al. Determination of liquefaction resistance of deep alluvial soils considering in-situ structure effects[J]. Journal of Hydraulic Engineering, 2017, 48(4): 446–456. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201704008.htm
[12]	杨玉生, 刘小生, 汪小刚, 等. 覆盖层地基和筑坝土石料本构模型参数反分析研究进展[C]// 第六届中国水利水电岩土力学与工程学术研讨会, 2016: 94–102. YANG Yu-sheng, LIU Xiao-sheng, WANG Xiao-gang, et al. Research progress on back analysis of constitutive model parameters of alluvial foundation and rockfill materials[C]// The 6th China Water Conservancy and Hydropower Geotechnical Mechanics and Engineering Symposium, 2016: 94–102. (in Chinese)
[13]	杨玉生, 刘小生, 赵剑明, 等. 基于计算结果和监测资料的坝基覆盖层沉降对比分析[C]// 土石坝工程—面板与沥青混凝土防渗技术交流会, 2015: 129–135. YANG Yu-sheng, LIU Xiao-sheng, ZHAO Jian-ming, et al. Comparative analysis of dam foundation settlement based on calculation results and monitoring data[C]// Proceeding for Earth Dam Engineering: Anti-seepage Technology in Face Slab and Asphalt Concrete, 2015: 129–135. (in Chinese)
[14]	刘小生, 汪小风, 马怀发, 等. 旁压试验反演邓肯-张模型参数方法研究[J]. 岩土工程学报, 2004, 26(5): 601–606. http://cge.nhri.cn/cn/article/id/11486 LIU Xiao-sheng, WANG Xiao-gang, MA Huai-fa, et al. Study on back-analysis method of constitutive parameters for Duncan-Chang model based on in -situ pressuremeter tests[J]. Chinese Journal of Geotechnical Engineering, 2004, 26(5): 601–606. (in Chinese) http://cge.nhri.cn/cn/article/id/11486
[15]	马怀发, 孔俐丽, 侯淑媛, 等. 基于旁压试验反分析土体本构参数的有限元方法[J]. 水利水电技术, 2005, 36(6): 58–60, 64. https://www.cnki.com.cn/Article/CJFDTOTAL-SJWJ200506022.htm MA Huai-fa, KONG Li-li, HOU Shu-yuan, et al. FEM for inverse analysis on soil constitutive parameters based on pressuremeter test[J]. Water Resources and Hydropower Engineering, 2005, 36(6): 58–60, 64. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SJWJ200506022.htm
[16]	杨志法, 王思敬, 冯紫良, 等. 岩土工程反分析原理及应用[M]. 北京: 地震出版社, 2002. YANG Zhi-fa, WANG Si-jing, FENG Zi-liang, et al. Principle and Application of Back Analysis in Geotechnical Engineering[M]. Beijing: Seismological Press, 2002. (in Chinese)
[17]	吕爱钟, 蒋斌松. 岩石力学反问题[M]. 北京: 煤炭工业出版社, 1998. LÜ Ai-zhong, JIANG Bin-song. Inverse Problem of Rock Mechanics[M]. Beijing: China Coal Industry Publishing House, 1998. (in Chinese)
[18]	杨玉生, 刘小生, 赵剑明, 等. 邓肯E-B模型参数敏感性分析[J]. 中国水利水电科学研究院学报, 2013, 11(2): 81–86. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGSX201302001.htm YANG Yu-sheng, LIU Xiao-sheng, ZHAO Jian-ming, et al. Parameter sensitivity analysis of Duncan E-B model[J]. Journal of China Institute of Water Resources and Hydropower Research, 2013, 11(2): 81–86. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGSX201302001.htm