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A tilting soil sampling system

A sampling system, inclined technology, used in earth-moving drilling, wellbore/well components, directional drilling, etc., can solve the problems of inability to drill holes, lack of deep sampling at the bottom, and inability to accurately determine the environmental conditions at the bottom, etc. The effect of work efficiency

Active Publication Date: 2022-04-08
TONGJI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But in many cases, it is necessary to know the soil and groundwater environment conditions at the bottom of some special objects such as buildings, structures, landfills, rivers or lakes, historic site protection areas, important facilities, etc., but it is impossible to sample from the upper part.
For this situation, there is still a lack of deep sampling technology at the bottom, resulting in the inability to accurately determine the environmental conditions at the bottom, which is an important technical problem in environmental investigation and assessment.

Method used

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Embodiment 1

[0022] A certain landfill covers an area of ​​560 mu and is divided into two phases. The first phase is 230 mu. The landfill is earlier and belongs to an informal landfill without an anti-seepage membrane at the bottom. The second phase is built in the later stage, covering an area of ​​330 mu. The landfill has done a relatively standardized bottom anti-seepage treatment, and the bottom of the anti-seepage layer is located 7m below the ground. According to the local development norms, the site needs to be further treated and repaired. First, an environmental investigation of the landfill site is required. Since the first phase and the second phase landfill are adjacent, the first phase landfill is not anti-seepage, and the landfill leachate may have infiltrated and diffused to the bottom of the second phase landfill, in order to judge the bottom of the second phase landfill Soil and groundwater sampling is required. Due to the anti-seepage treatment in the second phase, if s...

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Abstract

An inclined soil sampling system according to the present invention comprises at least one inclined sampling well with different depths corresponding to at least one sampling point of each target formation of different depths; and a soil sampler arranged in the sampling well for sampling The point is located in the target formation, the wellhead of the sampling well is located outside the boundary of the special target, the soil sampler is set at the bottom of the sampling well, and the bottom of the well is located at the corresponding sampling point, and the inclination angle between the axis of the sampling well and the ground is less than 15 degrees, The soil sampler includes a hollow sampling tube, which is fixed in the tube body through a connecting piece, and one end of the hollow sampling tube communicates with the front end of the tube body. The tilting soil sampling system of the present invention solves the current technical problem of only vertical sampling, and realizes the underground tilting soil sampling, so that it can be used in various landfills, buildings, structures, lakes, rivers, relics, important facilities, etc. Soil sampling at different locations on the bottom becomes a reality.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to an inclined soil sampling system. Background technique [0002] At present, the sampling of soil and groundwater all adopts the method of drilling and drilling to build groundwater monitoring wells. Whether for soil sampling or groundwater sampling, boreholes or monitoring wells are perpendicular to the ground. But in many cases, it is necessary to know the soil and groundwater environment conditions at the bottom of some special objects such as buildings, structures, landfills, rivers or lakes, historic site protection areas, important facilities, etc., but it is impossible to sample from the upper part. For this situation, there is still a lack of deep sampling technology at the bottom, resulting in the inability to accurately determine the environmental status of the bottom, which is an important technical problem in environmental investigation and assessme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/02E21B7/06E21B10/26E21B7/02
CPCE21B49/02E21B7/06E21B7/064E21B10/26E21B7/02
Inventor 付融冰
Owner TONGJI UNIV