水泥砂浆体中三向压力传感器的测量特性

doi:10.13722/j.cnki.jrme.2014.1487

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (534 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The relation between measured stress of three-dimension pressure sensor(3DPS) and initial stress of surrounding medium plays an important role in rock stress measurement. In order to know the measuring performance of 3DPS for practical applications，calibration test is performed in rock mechanics testing system to investigate the repeatability and linearity of 3DPS and corresponding calibration coefficients are obtained. A cubic cement mortar sample，which side length is 600mm，with 3DPS embedded in the center is poured. It is loaded under different repeated stress states by the developed true-triaxial loading system. Due to pore structure of the cement mortar body，the measured stress curves of 3DPS show a hysteresis phenomenon when loads are applied for the first time. As a result of the pore structures are pressed compact under repeated loads，the measured stress curves tend to be stable. For hydrostatic stress loading，the measured stresses of 3DPS are linear to the loading stresses. For non-hydrostatic stress state loading，the measured stresses of 3DPS are not only linear related to the loading stresses in the same direction but also related to the differential stresses that related to the other two directions. Then，an equation for describing the influence of loading stress on the measured stress of 3DPS in cement mortar body is proposed.

Key words： rheological stress recovery method 3DPS measured stress initial stress model test

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1487 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/I9/23

[1] 何满潮，袁越，王晓雷，等. 新疆中生代复合型软岩大变形控制技术及其应用[J]. 岩石力学与工程学报，2013，32(3)：433–441. (HE Manchao，YUAN Yue，WANG Xiaolei，et al. Control technology for large deformation of mesozoic compound sot rock in Xinjiang and its application[J]. Chinese Journal of Rock Mechanics and Engineering， 2013，32(3)：433–441.(in Chinese)) [2] 孙钧，潘晓明. 隧道软弱围岩挤压大变形非线性流变力学特性研究[J]. 岩石力学与工程学报，2012，31(10)：1 957–1 968.(SUN Jun，PAN Xiaoming. Research on large squeezing deformation and its nonlinear rheological mechanical characteristics of tunnel with weak surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(10)：1 957–1 968.(in Chinese)) [3] 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)：3 273–3 279.(ZHANG Fang，LIU Quansheng，ZHANG Chenyuan，et al. Measurement of geostress and sensor about rheological stress recovery method[J]. Rock and Soil Mechanics，2014，35(5)：3 273–3 279.(in Chinese)) [4] KOGLER F，SCHEIDIG A，(1927). Die Bautechnik，31，July 15. [5] LABUZ J F，THEROUX B. Laboratory calibration of earth pressure cells[J]. Geotechnical Testing Journal，2005，28(2)：1–9. [6] TAYLOR D W. Review of pressure distribution theories，earth pressure cell investigations，and pressure distribution data[R]. Contract Report W22-053 eng-185，1945，U.S. Army Engineer Waterways Experiment Station，Vicksburg，M S. [7] MONFORE G E. An analysis of the stress distribution in and near stress gauges embedded in elastic soils[R]. Structural Laboratory Report No. SP 26，1950，U.S. Bureau of Reclamation，Denver，CO. [8] LOH Y C. Internal stress gauges for cementations materials[J]. Proceedings of the Society for Experimental Stress Analysis，1954，21(2)，13–28. [9] TORY A C，SPARROW J W. The influence of diaphragm flexibility on the performance of an earth pressure cell[J]. Journal of Scientific Instruments，1967，44(9)，781–785. [10] 刘宝有. 土压力传感器国外理论和实验研究概况[J]. 传感器技术，1988，2：48–53.(LIU Baoyou. A review of theoretical and experimental research of soil pressure cells[J]. Journal of Transducer Technology，1988，2：48–53.(in Chinese)) [11] 汪恩清，丁世敬. 土应力传感器动态匹配误差理论研究[J]. 岩土力学，1999，20(3)：78–83.(WANG Enqing，DING Shijing. The investigation for dynamic matching error in the registration of soil pressure cells[J]. Rock and Soil Mechanics，1999，20(3)：78–83.(in Chinese)) [12] 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 Shangjiang. The calculation of matching error of rock-soil pressure transducer[J]. Rock and Soil Mechanics，2001，22(1)：99–105.(in Chinese)) [13] WEILER W A，KULHAWY F H. Factors affecting stress cell measurements in soil[J]. Journal of the Geotechnical Engineering，ASCE，1982，108(12)：1 529–1 548. [14] FRYDMAN S，KEISSAR I. Earth pressure on retaining walls near rock faces[J]. Journal of Geotechnical Engineering，1987，113(6)，586–599. [15] TALESNICK M. Measuring soil contact pressure on a soil boundary and quantifying soil arching[J]. Geotechnical Testing Journal，2005，28(2)，1–9. [16] CHEN W，RANDOLPH M F. Measuring radial total stresses on model suction caissons in clay[J]. Geotechnical Testing Journal，2006，30(2)，1–9. [17] REDSHAW S C. A sensitive miniature pressure cell[J]. Journal of Scientific Instrumentation，1954，31，467–469. [18] PANG P L R. A new boundary stress transducer for small soil models in the centrifuge[J]. Geotechnical Testing Journal，1986，9(2)，72–79. [19] RAMIREZ A，NIELSEN J，AYUGA F. On the use of plate type normal pressure cells in silos part 1：Calibration and evaluation[J]. Computer and Electronics in Agriculture，2010，71，71–76. [20] DUNNICLIFF J，GREEN G E. Geotechnical instrumentation for monitoring field performance[M]. Wiley：New York，1988. [21] ASKEGAARD V. Applicability of normal and shear stress cells embedded in cohesionless materials[J]. Experimental Mechanics，1994，315–321. [22] 邓铁六，白泰礼，马俊亭，等. 单线圈电流型振弦式传感器[J]. 传感器技术，2000，19(4)：22–25.(DENG Tieliu，BAI Taili，MA Junting，et al. Vibrating wire sensor with single coil and current excitement[J]. Journal of Transducer Technology，2000，19(4)：22–25.(in Chinese)) [23] 汪清标，贾宏俊，王渭明，等. 矿山压力检测仪器技术新进展及其应用[J]. 地下空间工程学报，2006，2(8)：1 473–1 476.(WANG Qingbiao，JIA Hongjun，WANG Weiming，et al. New developments and applications of self-excitation vibrating-wire sensor technology[J]. Chinese Journal of Underground Space and engineering，2006，2(8)：1 473–1 476.(in Chinese))