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Permeability coefficient determinator for geosynthetic clay liner (GCL)

A technology of bentonite waterproof blanket and permeability coefficient, which is applied in the direction of permeability/surface area analysis, measuring devices, scientific instruments, etc., to achieve the effect of ensuring accuracy and simple structure

Inactive Publication Date: 2011-10-05
INST OF WATER CONSERVANCY SCI RES OF INNER MONGOLIA AUTONOMOUS REGION
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] There is currently no such device

Method used

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  • Permeability coefficient determinator for geosynthetic clay liner (GCL)
  • Permeability coefficient determinator for geosynthetic clay liner (GCL)

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Embodiment Construction

[0008] The bentonite waterproof blanket permeability tester is composed of a top plate 12, a water storage tank 4, a sample holding cushion 6 and a water collection dish 7; the top plate 12 is fixed on the water storage tank 4 to form a closed space; the upper part of the top plate 12 is equipped with a The water pipe 3 and the exhaust pipe 14 are all in communication with the water storage tank. When the water inlet pipe 3 is in use, it is connected to the Martens bottle 1 that simulates the height of the water head through the hose 2; A water tray 11; a sample clamping cushion 6 is placed below the water storage tank 4 for clamping the measured object 10; a bottom plate 5 is arranged under the sample clamping cushion 6, and the bottom plate 5 is relatively fixed to the top plate 12 by bolts 13, and Fix the sample clamping cushion 6 under the water storage tank 4; a water collection dish 7 is fixed under the bottom plate 5, and there are a number of leakage holes on the bottom...

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Abstract

The invention provides a permeability coefficient determinator for a geosynthetic clay liner (GCL), which relates to an instrument for measuring the permeability coefficient of the GCL under the environment of a simulated water channel. The permeability coefficient determinator for the GCL comprises a top plate, a water storage tank, a sample clamping cushion and a water collector, wherein the top plate is fixed on the water storage tank to form a closed space; a water inlet pipe and an exhaust pipe are arranged on the upper part of the top plate; an opening is formed at the bottom of the water storage tank, and a dismountable water passing disk is arranged in the water storage tank; the sample clamping cushion is arranged below the water storage tank; a bottom plate is arranged below thesample clamping cushion, the bottom plate is relatively fixed with the top plate through bolts, and the sample clamping cushion is fixed below the water storage tank; the water collector is fixed below the bottom plate, and a plurality of water leakage holes are formed on the bottom plate and are communicated with the water collector; and a water outlet pipe is arranged below the water collector.The instrument has simple structure, can flexibly simulate water channels under the environment of different heights of water heads, can accurately measure the permeability coefficient of the GCL, and simultaneously can measure similar impermeable materials.

Description

technical field [0001] A bentonite waterproof blanket permeability tester relates to an instrument for measuring the permeability coefficient of the bentonite waterproof blanket under the condition of simulating channel water flow. Background technique [0002] There is currently no such device. Contents of the invention [0003] The purpose of the invention is to provide an instrument for measuring the permeability coefficient of the bentonite waterproof blanket by using the simulated water channel environment. [0004] The Bentonite Waterproof Blanket Penetration Coefficient Tester is composed of a top plate, a water storage tank, a sample holding cushion and a water collection dish; the top plate is fixed on the water storage tank to form a closed space; the upper part of the top plate is equipped with a water inlet pipe and an exhaust pipe It communicates with the water storage tank; there is an opening at the bottom of the water storage tank, and a detachable water p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
Inventor 于健柴建华张沛琪史吉刚
Owner INST OF WATER CONSERVANCY SCI RES OF INNER MONGOLIA AUTONOMOUS REGION
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