›› 2012, Vol. 33 ›› Issue (2): 509-514.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Soil-water characteristic curves of Gaomiaozi bentonite-sand mixtures

MENG De-lin1, SUN De-an1, LIU Yue-miao2   

  1. 1.Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2.Beijing Research Institute of Uranium Geology, Beijing 100029, China
  • Received:2010-07-06 Online:2012-02-10 Published:2012-02-14

PDF (Chinese)

967

Abstract: The filter paper method and the pressure plate method are used for measuring the suction of Gaomiaozi bentonite-sand mixtures. The soil-water characteristic curves (SWCC) obtained during drying from the tests at different void ratios and different mixing ratios of Gaomiaozi bentonite to Fujian sand are compared. The effects of void ratio and the mixing ratio on SWCC are analyzed according to the test results. The results show that when the SWCC is expressed by the relation between suction and saturation degree, the SWCC moves up and right with the decreasing void ratio for a mixture with the same mixing ratio. That’s to say, the saturation degree increases with the decreasing void ratio at a constant suction. Especially when the suction is less than 10 MPa, this phenomenon is evident; at constant void ratios, the SWCC moves up and right while increasing the mixing ratio. In other words, the value of air-entry suction increases with the increasing mixing ratio. In addition, when the mixing ratio and void ratio are the same, the SWCCs of Gaomiaozi bentonite-sand mixture and Kunigel bentonite-sand mixture are quite similar.

Key words: Gaomiaozi bentonite, soil-water characteristic curve(SWCC), filter paper method, high-level radioactive waste(HLW), sand

CLC Number: 

  • TV 443+.3
[1] LI Hong-po, CHEN Zheng, FENG Jian-xue, MENG Yu-han, MEI Guo-xiong, . Study on position optimization of horizontal drainage sand blanket of double-layer foundation [J]. Rock and Soil Mechanics, 2020, 41(2): 437-444.
[2] MENG Yu-han, ZHANG Bi-sheng, CHEN Zheng, MEI Guo-xiong, . Consolidation analysis of foundation with sand blankets under ramp loading [J]. Rock and Soil Mechanics, 2020, 41(2): 461-468.
[3] MA Wei-jia, CHEN Guo-xing, WU Qi, . Experimental study on liquefaction resistance of coral sand under complex loading conditions [J]. Rock and Soil Mechanics, 2020, 41(2): 535-542.
[4] WU Qi, DING Xuan-ming, CHEN Zhi-xiong, CHEN Yu-min, PENG Yu, . Seismic response of pile-soil-structure in coral sand under different earthquake intensities [J]. Rock and Soil Mechanics, 2020, 41(2): 571-580.
[5] YAN Chao-ping, LONG Zhi-lin, ZHOU Yi-chun, KUANG Du-min, CHEN Jia-min, . Investigation on the effects of confining pressure and particle size of shear characteristics of calcareous sand [J]. Rock and Soil Mechanics, 2020, 41(2): 581-591.
[6] LIANG Ke, CHEN Guo-xing, LIU Kang, WANG Yan-zhen, . Degradation properties and prediction model of maximum shear modulus of saturated coral sand under cyclic triaxial loading [J]. Rock and Soil Mechanics, 2020, 41(2): 601-611.
[7] LIANG Ke, HE Yang, CHEN Guo-xing, . Experimental study of dynamic shear modulus and damping ratio characteristics of coral sand from Nansha Islands [J]. Rock and Soil Mechanics, 2020, 41(1): 23-31.
[8] YANG Fu-jian, HU Da-wei, TIAN Zhen-bao, ZHOU Hui, LU Jing-jing, LUO Yu-jie, GUI Shu-qiang, . Evolution and mechanism of permeability of unconsolidated sandstone under high hydrostatic pressure compaction [J]. Rock and Soil Mechanics, 2020, 41(1): 67-77.
[9] RUI Sheng-jie, GUO Zhen, WANG Li-zhong, ZHOU Wen-jie, LI Yu-jie, . Experimental study of cyclic shear stiffness and damping ratio of carbonate sand-steel interface [J]. Rock and Soil Mechanics, 2020, 41(1): 78-86.
[10] LI Xiao-gang, ZHU Chang-qi, CUI Xiang, ZHANG Po-yu, WANG Rui, . Experimental study of triaxial shear characteristics of carbonate mixed sand [J]. Rock and Soil Mechanics, 2020, 41(1): 123-131.
[11] QIN Yu-lan, ZOU Xin-jun, CAO Xiong. Internal forces and deformations of a single pile in uniform sand under combined action of horizontal harmonic load and torque [J]. Rock and Soil Mechanics, 2020, 41(1): 147-156.
[12] LIU Bo, MA Yong-jun, SHENG Hai-long, CHANG Ya-ru, YU Jun-jie, JIA Shuai-long, . Experiments on mechanical properties of Cretaceous red sandstone after freeze-thaw process [J]. Rock and Soil Mechanics, 2019, 40(S1): 161-171.
[13] ZHANG Chen-yang, CHEN Min, HU Ming-jian, WANG Xin-zhi, TANG Jian-jian, . Effect of fine particles content on shear strength of calcareous sand [J]. Rock and Soil Mechanics, 2019, 40(S1): 195-202.
[14] TANG Guo-yi, LIU Zhi, LIU Zheng-hong, TANG Li-jun, YU Yong-tang, JIANG Wen, . Application of low energy level dynamic compaction method to Angola Quelo sand [J]. Rock and Soil Mechanics, 2019, 40(S1): 203-209.
[15] GAO Yun-chang, GAO Meng, YIN Shi, . Experiments on static characteristics of sea sand solidified by polyurethane [J]. Rock and Soil Mechanics, 2019, 40(S1): 231-236.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] CUI Kai, CHEN Wen-wu, ZHANG Jing-ke, HAN Wen-feng, LIANG Shou-yun. Relationships between microstructure parameters and wind erosion rate of multivariate layered soil in slope[J]. , 2009, 30(9): 2741 -2746 .
[2] LI Jia-gui, CHEN Zheng-han, HUANG Xue-feng, LI Jia. In-site test on earth pressure and saturating collapse test for unsaturated loess Q3 on high slope[J]. , 2010, 31(2): 433 -440 .
[3] HU Ming-jian, WANG Ren, CHEN Zhong-xue, WANG Zhi-bing. Initiation process simulation of debris deposit based on particle flow code[J]. , 2010, 31(S1): 394 -397 .
[4] ZHANG Jian-xin, LIU Shuang-ju, ZHOU Jia-bin. Analysis of influence of foundation pits excavation unloading by top-down method on engineering structures[J]. , 2010, 31(S2): 218 -223 .
[5] BAI Bing, LI Chun-feng. Elastoplastic dynamic responses of close parallel metro tunnels to vibration loading[J]. , 2009, 30(1): 123 -128 .
[6] XUE Yun-liang, LI Shu-lin, LIN Feng, XU Hong-bin. Study of damage constitutive model of SFRC considering effect of damage threshold[J]. , 2009, 30(7): 1987 -1992 .
[7] REN Zhong, Sheng Qian. Study on the disciplinary structure and its evolution of rock mechanics in China[J]. , 2009, 30(S1): 293 -298 .
[8] ZHANG Jun-hui. Analysis of deformation behavior of expressway widening engineering under different foundation treatments[J]. , 2011, 32(4): 1216 -1222 .
[9] WANG Liang-qing, P.H.S.W. Kulatilake, TANG Hui-ming, LIANG Ye , WU Qiong ,. Kinematic analyses of sliding and toppling failure of double free face rock mass slopes[J]. , 2011, 32(S1): 72 -77 .
[10] LI Xu, ZHANG Li-min, AO Guo-dong. Variations of pore structure, void ratio, and water content in soil drying process[J]. , 2011, 32(S1): 100 -105 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd