Method for analyzing underground leakage of soil in karst region

An analysis method, karst technology, applied in the direction of particle size analysis, analysis materials, particles and settlement analysis, etc., can solve the problems that it is difficult to reveal the process and mechanism of soil underground leakage, and achieve the effect of low equipment price, convenient operation and low cost

Active Publication Date: 2018-09-28
GUIZHOU UNIV
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Problems solved by technology

These methods have limitations in quantitatively revealing the subsurface leakage of water and soil in karst slope land, and it is difficult to reveal the process and mechanism of soil subsurface leakage.

Method used

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  • Method for analyzing underground leakage of soil in karst region
  • Method for analyzing underground leakage of soil in karst region
  • Method for analyzing underground leakage of soil in karst region

Examples

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Embodiment

[0049] Example: see Figure 1-6 , a research method for soil underground leakage in karst areas, comprising the following steps:

[0050] (1) With the method of the present invention, in Shangba Village, Qingyan Town, Huaxi District, Guiyang City, Guizhou Province, the rocky desertification slope land where carbonate rock is selected as dolomite is selected to conduct soil underground leakage research.

[0051] (2) With the method of the present invention, a plurality of observation points (ie cracks) were selected in the dolomite desertification slope of Shangba Village in the research area, and the basic conditions thereof were recorded as shown in Table 1.

[0052] Table 1 Basic conditions of cracks at observation points

[0053]

[0054] (3) At the 6 proposed observation points, mark the rock interface and the soil surface in the rectangular quadrat (2m×2m). In this example, mark with red paint. At the same time, the method of "using the distribution of the original s...

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Abstract

The invention discloses a method for analyzing the underground leakage of soil in a karst region. The method comprises the following steps: selecting a plurality of typical observation points in a study area; setting one quadrat at each observation point, and drawing a line marker at the contact of a rock interface and a soil surface; carrying out a soil sample collection technology in a "soil layer + rock-soil interface" manner, measuring the soil layer creep displacement with the drawn line marker as a reference point according to the time scale required by the study, which is individual rainfall, month, season or year, after the soil leakage; collecting a soil sample after the leakage or study period, and analyzing the soil particle composition of the soil sample; carrying out a traditional technology which is a pipette technology or a laser particle size technology; and analyzing the creep displacement and the leakage of the soil. The creep displacement of crack soil in the karst region and the mass fraction change of the particle size grades of soil particles are analyzed by combining line marker drawing with the soil particle analysis-pipette technology in order to reveal theunderground leakage process of the soil in the karst region.

Description

technical field [0001] The invention belongs to the field of soil erosion and soil science, and specifically relates to an analysis method of soil underground leakage in karst areas based on the combination of marking and soil particle analysis, which is specially used for the research of soil underground leakage in karst areas. Background technique [0002] The special "dual" structure and porous medium characteristics of the karst area make the runoff flow in the shallow pores (cracks), pipes, and funnels during the rainfall process will take away the soil, resulting in "soil leakage". Soil underground leakage is a special way of soil erosion in karst rocky desertification areas. [0003] As early as the 1960s, foreign countries had pointed out the phenomenon of soil underground leakage. However, due to the difficulty of direct observation of underground leakage and the lack of practical research methods and means, people do not have a deep understanding of the mechanism o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02G01N15/08
CPCG01N15/0255G01N15/08
Inventor 彭旭东戴全厚丁贵杰李昌兰杨宇琼
Owner GUIZHOU UNIV
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