Design and Experimental Verification of a Kind of Three-dimensional Earth Pressure Cells

PDF Full Text Download(1338 KB)

China Journal of Highway and Transport ›› 2018, Vol. 31 ›› Issue (1) : 11-19.

LI Shun-qun¹, CHEN Zhi-xiang¹, GUI Chao², XIA Jin-hong², ZHANG Shao-feng³

Author information +

History +

Abstract

In order to test the three-dimensional stress state in soil, the design principle and manufacturing method of three-dimensional earth pressure cells were given based on the relationship between the normal stress state and the principal stress. Compared with the common earth pressure cells, this kind of three-dimensional earth pressure cells could test the three-dimensional stress state of the space, that is, three normal stresses and three shear stresses. The device was composed of a polyhedron base and 6 micro earth pressure cells, embedded on the base. The form of the base can be varied, but the transition matrix obtained from the directional cosine of the 6 earth pressure cells' normal line must be non-singular. Considering the requirements of engineering application, the production methods and data processing methods on three kinds of three-dimensional earth pressure cells were described, whilst the error and applicability analysis were carried out. A compression test was carried out by the remolded soil in a rigid model box, and the three-dimensional stress state at different depths were tested by the three three-dimensional earth pressure cells. The results show that, the two horizontal normal stresses, less than the vertical stress, keep linear relationship with vertical stress under the one-dimensional lateral confining pressure. With the increase of soil consolidation degree, the stress state of soil caused by external load tends to be slow. The model soil prepared by the layered compaction method presents obvious anisotropy, whilst there is still an obvious difference in the increment of stress in the soil under the external load. The lateral confining form and the external load level are the main factors that cause the different stress state of soil, and the initial anisotropy caused by layered compaction method tends to be isotropic after the loading-unloading process. The measured vertical stress gradually decreases with the increase of depth, which reflects the diffusion effect of additional stress with depth. It is proved that this kind of test device is scientific and reliable.

Key words

road engineering / three-dimensional earth pressure cell / transition matrix / stress state / base / non-singular

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LI Shun-qun, CHEN Zhi-xiang, GUI Chao, XIA Jin-hong, ZHANG Shao-feng. Design and Experimental Verification of a Kind of Three-dimensional Earth Pressure Cells[J]. China Journal of Highway and Transport, 2018, 31(1): 11-19

References

[1] THEROUX B,LABUZ J F,DAI S T.Field Installation of an Earth Pressure Cell[J].Transportation Research Record,2001(1772):12-19.
[2] 陈祥,孙进忠,蔡新滨.基桩水平静载试验及内力和变形分析[J].岩土力学,2010,31(3):753-759. CHEN Xiang,SUN Jin-zhong,CAI Xin-bin.Horizontal Static Loading Test and Analyses of Internal Force and Distortion on Single Pile[J].Rock and Soil Mechanics,2010,31(3):753-759.
[3] LABUZ J F,THEROUX B.Laboratory Calibration of Earth Pressure Cells[J].Geotechnical Testing Journal,2005,28(2):188-196.
[4] 陈春红,刘素锦,王钊.土压力盒的标定[J].中国农村水利水电,2007(2):29-33. CHEN Chun-hong,LIU Su-jin,WANG Zhao.Calibration of Earth Pressure Cell[J].China Rural Water and Hydropower,2007(2):29-33.
[5] WANG S H,ZUO D W,WANG M,et al.Modified Layer Removal Method for Measurement of Residual Stress Distribution in Thick Pre-stretched Aluminum Plate[J].Transactions of Nanjing University of Aeronautics & Astronautics,2004,21(4):286-290.
[6] 钱建固,黄茂松.复杂应力状态下岩土体的非共轴塑性流动理论[J].岩石力学与工程学报,2006,25(6):1259-1264. QIAN Jian-gu,HUANG Mao-song.Non-coaxial Plastic Flow Theory in Multi-dimensional Stress Space[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(6):1259-1264.
[7] 路德春,姚仰平,周安楠.土体平面应变条件下的主应力关系[J].岩石力学与工程学报,2006,25(11):2320-2326. LU De-chun,YAO Yang-ping,ZHOU An-nan.Relationship Between Principal Stresses of Soil Mass Under Plane Strain Condition[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(11):2320-2326.
[8] 张芳,刘泉声,张程远,等.流变应力恢复法地应力测试及装置[J].岩土力学,2014,35(5):1506-1513. ZHANG Fang,LIU Quan-sheng,ZHANG Cheng-yuan,et al.Geostress Measurement Using Rheological Stress Recovery Method and Its Equipment[J].Rock and Soil Mechanics,2014,35(5):1506-1513.
[9] 张宏,李顺群,张少峰,等.三维应力计的工作原理及误差分析[J].土木建筑与环境工程,2015,37(5):54-59. ZHANG Hong,LI Shun-qun,ZHANG Shao-feng,et al.Principle and Errors Analysis of the Three-dimensional Stress Apparatuses[J].Journal of Civil,Architectural & Environmental Engineering,2015,37(5):54-59.
[10] 王丽丽,忻向军,郝金光.基于光纤光栅的结构体裂缝三维应变传感[J].光子学报,2016,45(12):7-11. WANG Li-li,XIN Xiang-jun,HAO Jin-guang.Mechanism of Three-dimension Sensing with Fiber Gratings for Structure Cracks Detection[J].Acta Photonica Sinica,2016,45(12):7-11.
[11] 李顺群,高凌霞,冯慧强,等.一种接触式三维应变花的工作原理及其应用[J].岩土力学,2015,36(5):1513-1520. LI Shun-qun,GAO Ling-xia,FENG Hui-qiang,et al.Principle and Application of a Three-dimensional Contacting Strain Rosette[J].Rock and Soil Mechanics,2015,36(5):1513-1520.
[12] 张坤勇.考虑应力各向异性土体本构模型及其应用研究[D].南京:河海大学,2004. ZHANG Kun-yong.Study and Application on Soil's Constitutive Model with the Consideration of Stress-induced Anisotropy[D].Nanjing:Hohai University,2004.
[13] 江强,朱建明,姚仰平.基于SMP准则的土体三维应力状态土压力问题[J].岩土工程学报,2006,28(增):1415-1417. JIANG Qiang,ZHU Jian-ming,YAO Yang-ping.Earth Pressure of Three-dimensional Soil Stress States Based on SMP Failure Criterion[J].Chinese Journal of Geotechnical Engineering,2006,28(S):1415-1417.
[14] 沈珠江.土的弹塑性应力-应变关系的合理形式[J].岩土工程学报,1980,2(2):11-19. SHEN Zhu-jiang.The Rational Form of Stress-strain Relationship of Soils Based on Elastic-plasticity Theory[J].Chinese Journal of Geotechnical Engineering,1980,2(2):11-19.
[15] 张彬,王钊,杨俊峰,等.土压力盒在工程应用中的误差分析[J].探矿工程,2005(增):157-161. ZHANG Bin,WANG Zhao,YANG Jun-feng,et al.Error Analyses of Application of Earth Pressure Cell in Geotechnical Engineering[J].Exploration Engineering,2005(S):157-161.
[16] 曾辉,余尚江.岩土压力传感器匹配误差的计算[J].岩土力学,2001,22(1):99-105. ZENG Hui,YU Shang-jiang.The Calculation of Matching Error of Rock-earth Pressure Transducer[J].Rock and Soil Mechanics,2001,22(1):99-105.
[17] 刘先珊,董存军.砂土介质中土压力盒的力学响应特性[J].土木建筑与环境工程,2012,34(4):12-18. LIU Xian-shan,DONG Cun-jun.Mechanical Response Characteristics of the Earth Pressure Cell in Sand[J].Journal of Civil Architectural & Environment Engineering,2012,34(4):12-18.
[18] 天津城建大学.侧向位移式多功能模型槽实验系统:中国,201410022445.X[P].2015-07-15. Tianjin Chengjian University.Lateral Displacement Multi-function Model Experiment System:China,201410022445.X[P].2015-07-15.

PDF Full Text Download(1338 KB)

2150

Accesses

Citation

Detail

Sections

Recommended

Abstract
Key words
Cite this article
References

Received	Published
2017-03-03	2018-01-20
Issue Date
2018-02-05

Please choose a citation manager

Content to export

Abstract

Key words

Cite this article

{{custom_sec.title}}

{{custom_sec.title}}

References

{{custom_fnGroup.title_en}}

Footnotes

模态框（Modal）标题

Please choose a citation manager

Content to export

Abstract

Key words

Cite this article

{{custom_sec.title}}

{{custom_sec.title}}

References

{{custom_fnGroup.title_en}}

Footnotes