Vertical well pipe for assisting in efficiently extracting groundwater in low permeable aqueous medium in laboratory and usage method of vertical well pipe

A laboratory, water medium technology, applied in the field of basic soil survey, construction, infrastructure engineering, etc., can solve the problems of small medium particles, poor water content, difficult research work, etc., to ensure clean, restore water absorption capacity, The effect of pumping water is obvious

Inactive Publication Date: 2013-04-17
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in coastal areas, especially in areas formed by sea reclamation, groundwater aquifers mostly exist in low-permeability media such as Quaternary silty and silty media. It is important to study the water quality and pollution solute migration in such media. It is of great significance for the groundwater system and closely related offshore seawater conditions. However, when carrying out two-dimensional or three-dimensional undisturbed soil

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  • Vertical well pipe for assisting in efficiently extracting groundwater in low permeable aqueous medium in laboratory and usage method of vertical well pipe
  • Vertical well pipe for assisting in efficiently extracting groundwater in low permeable aqueous medium in laboratory and usage method of vertical well pipe
  • Vertical well pipe for assisting in efficiently extracting groundwater in low permeable aqueous medium in laboratory and usage method of vertical well pipe

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Embodiment Construction

[0048] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0049] The indoor simulation device for the migration and transformation of pollutants in the artificial shore zone is built with a plexiglass plate with a thickness of 10 mm. The size of the simulation device is: length × width × height = 4.2m × 0.9m × 1.5m. Separate partitions with holes (such as figure 1 shown), the separator is 10mm thick plexiglass (such as Figure 4 As shown), one side of the partition is covered with braid, and the whole physical simulation device is divided into three parts: the tank head, the tank body and the tank tail. A liquid level gauge is installed on each side of the device, and the real-time regulation of the lateral water level and water flow rate can be realized by adjusting the height adjustment device under the connector (such as figure 1 shown). Connectors are installed in the flow direction of the devic...

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Abstract

The invention discloses a vertical well pipe assisting in efficiently extracting groundwater in a low permeable aqueous medium in a laboratory and a usage method of the vertical well pipe. With an ordinary well pipe improved, a rubber plug with two holes are added on a nozzle, and one hole serves as an air inlet and outlet port while the other hole serves as an insertion hole for an pumping hose. The inner portion of a porous pipe part positioned on the lower portion of the well pipe is of the structure of double layers, and washing cotton is used for filling the inner portion of a cylindrical ring while macroporous membrane is used for being stuck on an inner ring. The outer portion of the porous pipe is distributed with pores unevenly and asymmetrically. When the well pipe is vertically arranged, owing to symmetric distribution, water flow is fast due to the effect of groundwater flow; owing to the asymmetric distribution, cumulative amount in pumping can be increased, flow rate can be reduced, area of the water contact surface is expanded, pressure is increased, and therefore the siphon effect of the hose is improved.

Description

technical field [0001] The invention belongs to the technical field of groundwater systems, and more specifically relates to the technical field of installation and use of vertical well pipes for indoor research devices of groundwater systems. Background technique [0002] Due to the influence of many factors such as site conditions, conditions, equipment, project cost, and convenience, indoor simulation devices are often used to simulate the flow of groundwater in a region to approximate the water quantity and quality of the region, and to conduct water flow and solute analysis. For numerical simulation, it is necessary to sample and analyze the water quality in the aqueous medium during the research. When the aqueous medium is a coarse-grained medium such as coarse sand, use a general small-diameter vertical well pipe (PVC pipe) and a peristaltic pump to pump it out at one time. The amount of water required by the national standard analysis experiment. However, in coastal...

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Application Information

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IPC IPC(8): E02D1/06
Inventor 赵林朱德成郭华毛国柱郑义
Owner TIANJIN UNIV
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