Abstract:Electrical resistivity measurement is a useful and popular method to assess the quality of stabilized soils due to its economical,non-destructive and continuous measurement advantages. In order to evaluate the characteristics and influence factors of electrical resistivity of stabilized soils,a series of electrical resistivity tests of stabilized soils specimen after various curing periods were carried out. Cement,admixture of ground granulated blast furnace slag and lime,admixture of pulverised fly ash and lime were used to stabilize clay. The results indicate that increase of hardener agent contents results in the electrical resistivity of stabilized soils increasing. The electrical resistivity of stabilized soils also increases with the increase of curing periods,but the electrical resistivity gain rate is reducing. A synthetical parameter is proposed to represent the influences of porosity,degree of saturation,hardener agent content and curing periods on electrical resistivity of stabilized soils. The Archie′s electrical resistivity model is modified by replacing the porosity by the synthetical parameter,and the modified Archie model can represent the characteristics of electrical resistivity of stabilized soils.
章定文,曹智国,刘松玉. 固化土电阻率变化规律与经验模型[J]. 岩石力学与工程学报, 2014, 33(S2): 4139-4144.
ZHANG Dingwen,CAO Zhiguo,LIU Songyu. CHARACTERISTICS AND AN EXPERIENTIAL MODEL OF ELECTRICAL RESISTIVITY OF STABILIZED SOILS. , 2014, 33(S2): 4139-4144.
BRYSON L S,BATHE A. Determination of selected geotechnical properties of soil using electrical conductivity testing[J]. Geotechnical Test Journal,2009,32(3):1-10.
[2]
RINALDI V A,CUESTAS G A.Ohmic conductivity of a compacted siltyclay[J]. Journal of Geotechnical and Geoenvironmental Engineering,ASCE,2002,128(10):824-835.
[3]
TAYLOR M A,ARULANADAN K. Relationships between electricaland physical propertiesof cement pastes[J]. Cement and Concrete Research,1974,4(6):881-897.
[4]
TASHIRO C,IKED A K,INOME Y. Evaluation of pozzolanic activityby the electric resistance measurement method[J]. Cement andConcreteResearch,1994,24(6):1133-1139.
[5]
MCCARTER W J,CHRISP T M,STARRS G,et al. Characterization and monitoring of cement-based systems using intrinsic electrical property measurements[J]. Cement and Concrete Research,2003,33(2):197-206.
[6]
LI Z J,XIAO L Z,WEI X S. Determination of concrete setting time using electrical resistivity measurement[J]. Journal of Materials in Civil Engineering,2007,19(5):423-427.
[7]
XIAO L Z,LI Z J. New understanding of cement hydration mechanism through electrical resistivitymeasurement and microstructure investigations[J].Journal of Materials in Civil Engineering,2009,21(8):368-373.
[8]
KOMINE K. Evaluation of chemical grouted soil by electrical resistivity[J]. Ground Improvement,1997,1(2):101-113.
[9]
LIU S Y,DU Y J,HAN L H,et al. Experimental study on the electrical resistivity of soil-cement admixtures[J]. Environmental Geology,2008,54(6):1227-1233.
[10]
顾明芬,刘松玉,洪振舜,等. 水泥土结构特性的定量化研究[J]. 岩土力学,2005,26(11):1 862-1 865.(GU Mingfen,LIU Songyu,HONG Zhenshun,et al.Quantifying research on structural characteristics of cemented soils[J]. Rock and Soil Mechanics,2005,26(11):1 862-1 865.(in Chinese))
[11]
刘松玉,韩立华,杜延军. 水泥土的电阻率特性与应用探讨[J]. 岩土工程学报,2006,28(11):1 921-1 926.(LIU Songyu,HAN Lihua,DU Yanjun. Experimental study on electrical resistivity of soil-cement[J]. Chinese Journal of Geotechnical Engineering,2006,28(11):1 921-1 926.(in Chinese))
董晓强,白晓红,赵永强,等. NaOH 污染下水泥土的电阻率变化研究[J]. 岩土工程学报,2007,29(11):1715-1719.(DONG Xiaoqiang,BAI Xiaohong,ZHAO Yongqiang,et al. Study on electrical resistivity of soil-cement polluted by NaOH[J]. Chinese Journal of Geotechnical Engineering,2007,29(11):1 715-1 719.(in Chinese))
[14]
董晓强,白晓红,吕永康,等. 污染对水泥土电阻率特性影响的试验研究[J]. 岩土力学,2011,32(1):91-94.(DONG Xiaoqiang,BAI Xiaohong,LU Yongkang,et al. Experimental study of effects of pollution on electric resistivity characteristics of soil-cement[J]. Rock and Soil Mechanics,2011,32(1):91-94.(in Chinese))
[15]
LIU SY,ZHANG DW,ZHU ZD. On the uniformity of deep mixed soil-cement columns withelectrical resistivity method[J]. Geotechnical Special Publication,ASCE,2009,188:140-149.
[16]
ZHANG DW,LIU SY,FAN LB,et al. Effect of salt concentrations on the electrical resistivity of cement-treated soils[J]. Geotechnical Special Publication,ASCE,2012,225:1 016-1 025.
[17]
ARCHIE G E. The electrical resistivity log as an aid in determining some reservoir characteristics[J]. Petroleum Transactions of AIME,1942,146(1):54-62.
[18]
KELLER G,FRISCHKNECHTF. Electrical methods in geophysical prospecting[M]. New York:Pergamon Press,1966:66-68.
[19]
MCCARTERW J,DESMAZES P. Soil characterization using electrical measurements[J]. Géotechnique,1997,47(1):179-183.