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Underground water beam type monitoring well and well completion method

A groundwater and monitoring well technology, applied in geophysical measurement, water testing, measuring devices, etc., can solve the problems of high cost of monitoring wells, cumbersome construction process, difficult implementation, etc., to ensure cleanliness and representativeness, and improve construction efficiency , Guarantee the effect of using strength and service life

Pending Publication Date: 2021-11-02
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of high cost, low quality, cumbersome construction process and difficult implementation of monitoring wells in the prior art, thereby providing a groundwater beam type monitoring well and a well forming method

Method used

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  • Underground water beam type monitoring well and well completion method
  • Underground water beam type monitoring well and well completion method
  • Underground water beam type monitoring well and well completion method

Examples

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Effect test

Embodiment 1

[0033] see Figure 1 to Figure 5 As shown, a groundwater beam type monitoring well provided by the embodiment of the present invention includes a plurality of monitoring tubes 1, and a plurality of monitoring tubes 1 are inserted into the borehole 5 together, and the upper surfaces of the plurality of monitoring tubes 1 are flat. and a plurality of monitoring pipes 1 have different lengths, and each of the monitoring pipes 1 corresponds to a corresponding aquifer; a water-stop structure 3 is arranged between two adjacent monitoring pipes 1 for filling The gap between the plurality of monitoring tubes 1; the filtering structure 2 is arranged at the bottom of each monitoring tube 1, and the length of the filtering structure 2 is equal to the thickness of the monitoring layer.

[0034]By setting a water-stop structure 3 in the gap between two adjacent monitoring tubes 1, the water-stop structure 3 not only fills the gap between two adjacent monitoring tubes 1, but also ensures th...

Embodiment 2

[0045] The present invention also provides a method for forming a groundwater beam type monitoring well, comprising the following steps: Step 1: drilling 5 cores at monitoring points, and determining the formation conditions and the starting and ending depths of each monitoring layer, and, the The radius of the borehole 5 is 50mm-100mm larger than the radius of the monitoring tube 1; Step 2: fill the gaps of the multiple monitoring tubes 1 with a water-stop structure 3, tighten the multiple monitoring tubes 1, and ensure that multiple The upper surface of the monitoring tube 1 is even, the projection of the monitoring tube 1 is fan-shaped, and a plurality of the monitoring tubes 1 are spliced ​​together to form a ring structure. Step 3: Insert a plurality of monitoring tubes 1 into the borehole 5 to perform layered gravel filling and water stop; Step 4: Pump and wash each monitoring tube 1 in sequence until the groundwater is drained Turbidity becomes clear.

[0046] The spec...

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Abstract

The invention relates to the technical field of underground water monitoring, in particular to an underground water beam type monitoring well, which comprises a plurality of monitoring pipes, wherein the monitoring pipes are jointly inserted into a drill hole, the upper surfaces of the monitoring pipes are flush, the lengths of the monitoring pipes are different, and each monitoring pipe corresponds to a corresponding aquifer; a water stop structure arranged between two adjacent monitoring pipes; filtering structures arranged at the bottoms of the monitoring pipes, wherein the length of each filtering structure is equal to the thickness of a monitoring layer. Due to the fact that the monitoring well only needs to be drilled at a time, each monitoring pipe can correspond to a plurality of aquifers to conduct layered monitoring, construction is convenient, construction efficiency is improved, the number of drilled holes is reduced, construction and management cost is saved, and large-scale engineering application and popularization are facilitated. The invention further provides a well completion method of an underground water beam type monitoring well, gaps among the multiple monitoring pipes are filled with the water stop structures, the multiple monitoring pipes are installed in the same drill hole after being bundled and fixed, and the well completion quality and the monitoring effect are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of groundwater monitoring, in particular to a groundwater beam monitoring well and a well forming method. Background technique [0002] In recent years, groundwater pollution has become more and more serious. In order to monitor and control groundwater and obtain detailed hydrogeological parameters, the demand for groundwater layered monitoring technology is increasing. Common groundwater stratified monitoring wells in China include nest monitoring wells and continuous multi-channel monitoring wells. Due to the limitations of the characteristics of the two multi-layer monitoring wells, neither of them has been widely used in China at present. [0003] Nested monitoring well refers to the installation of two or more well pipes of different lengths in one borehole, and each well pipe independently monitors a target aquifer. When a nest-type monitoring well is completed, it is necessary to carry out pipe runni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18G01V9/00
CPCG01N33/1886G01V9/00
Inventor 王艳伟李焕杨乐巍刘鹏王文峰李书鹏杨大壮王勇
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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