Range adjustable double-ring infiltration device and in-situ soil permeability coefficient testing method

A soil permeability coefficient, adjustable technology, applied in the field of hydrogeological parameter measurement equipment, can solve the problems of inconvenient portability, poor measurement accuracy, hidden safety hazards in field operations, etc., and achieve the effect of shortening the test time

Active Publication Date: 2018-03-06
刘学浩
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Problems solved by technology

[0005] However, the traditional double-ring infiltration in-situ test technology still has many problems as follows: 1. It is necessary to look down when observing the water level of the Marsh bottle, resulting in significant human reading errors in the observation of water level changes; The measurement accuracy of soil infiltration is poor, there are double manual reading errors and large time accumulation errors, which seriously affect the quality of the original monitoring data; Readings have caused great consumption of manpower and material resources and unnecessary safety hazards in field operations; 4. Although the Martens bottle has solved the problem of constant pressure infiltration, it is inconvenient to carry out; 5. The water supply volume of the Martens bottle is limited. Adding water to the Martens bottle during the process will bring errors; 6. The general double-ring infiltration device does not consider the impact of evaporation; 7. The boundary effect caused by the damage to the soil surface during the on-site installation

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  • Range adjustable double-ring infiltration device and in-situ soil permeability coefficient testing method
  • Range adjustable double-ring infiltration device and in-situ soil permeability coefficient testing method
  • Range adjustable double-ring infiltration device and in-situ soil permeability coefficient testing method

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Embodiment Construction

[0089] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0090] In a specific embodiment, such as figure 1 As shown, a range-adjustable automatic double-loop infiltration device mainly includes a range-adjustable Martens flask device 1 and a double-loop 9 . Such as figure 1 As shown, the range-adjustable Marlboozer device 1 simultaneously serves as the inner Marlby bottle (the space on the left side of the movable rectangular piston 1.9) and the outer Marlby bottle (the space on the left side of the movable rectangular piston 1.9) described in the traditional technology. side space), in addition, the cross-sectional area of ​​the inner Malploy bottle can be adjusted, so that the double-ring infiltration device can be applied to different levels of permeability coefficients (such as sandy soil with high permeability,...

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Abstract

The invention belongs to the technical field of hydrogeological parameter testing equipment and in particular relates to an improved range adjustable double-ring infiltration device and an in-situ soil permeability coefficient testing method for monitoring in-situ soil infiltration coefficients/permeability coefficients. The device comprises an integral Markov bottle, double rings and an adjustingmechanism, wherein a piston which is moved horizontally is arranged inside the integral Markov bottle; the integral Markov bottle is partitioned by the pisotn into an equivalent inner Markov bottle and an equivalent outer Markov bottle; the double rings comprise an inner ring and an outer ring; the inner Markov bottle is communicated with the area inside the inner ring; the outer Markov bottle iscommunicated with the area between the inner ring and the outer ring. By adopting the range adjustable double-ring infiltration device, in-situ monitoring on ground soil permeability coefficients isachieved, the testing precision of the device is greatly improved as compared with that of a conventional technique, the working efficiency and the in-situ testing data precision are improved, and thedevice is particularly applicable to situations of relatively slow infiltration and relatively long steady seepage and is worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of hydrogeological parameter measuring equipment, and in particular relates to an improved range-adjustable double-ring infiltration device and an in-situ testing method for soil infiltration coefficient for in-situ soil infiltration coefficient / infiltration coefficient monitoring. Background technique [0002] The in-situ permeability coefficient test of surface soil is one of the basic physical parameters in hydrogeological investigation, and it is an essential key parameter for studying the surface water-groundwater conversion, groundwater flow and solute migration laws. The rainfall infiltration coefficient of surface soil is not only closely related to traditional farmland water conservancy issues such as soil erosion, surface runoff, farmland irrigation, water-induced geological disasters, etc. Pollution performance assessment, and key indicators of major resource and environmental issues such as spong...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 刘学浩王清李琦王宁涛陈征澳肖威李小春
Owner 刘学浩
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