›› 2009, Vol. 30 ›› Issue (11): 3313-3317.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Laboratory and field tests on hydraulic properties of landfilled waste

ZHANG Wen-jie1，CHEN Yun-min2，QIU Zhan-hong2,3   

  1. 1. Department of Civil Engineering, Shanghai University, Shanghai 200072 China; 2. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 3. College of Civil Engineering and Architecture, Taizhou University, Taizhou 318000, China
  • Received:2007-10-10 Online:2009-11-10 Published:2010-01-07

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Abstract:

Saturated hydraulic conductivity of landfilled waste was measured by laboratory tests. Soil-water characteristic curve (SWCC) of landfilled waste was measured using a ceramic plate extractor. A method to predict unsaturated hydraulic conductivity of landfilled waste based on its SWCC was proposed and was verified by a laboratory test. Saturated hydraulic conductivities of landfilled wastes in shallow, middle and deep depth of a landfill are measured to be 4.81×10-2cm/s, 3.50×10-3cm/s and 3.56×10-4cm/s, respectively. The results of SWCC tests show that the saturated and residual water content of landfilled wastes are high and that the SWCC curve is steep when matric suction is relatively low. The unsaturated hydraulic conductivity predicted using the proposed method is verified by an infiltration test. The result illustrates the feasibility of the proposed method.

Key words: landfilled waste, constant head permeability test, SWCC test, hydraulic conductivity

CLC Number: 

  • O 357.3
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