Static pressure layering water intaking system

Abstract

The invention relates to a static pressure layering water intaking system which comprises a plurality of sections of water pumping pipes which are connected together; the lower ends of the water pumping pipes are connected with a water intaking device; the upper ports of the water pumping pipes are sealed by sealing pieces; the upper part of each water pumping pipe is provided with a water pumping device one end of which extends into the water pumping pipe after passing through the sealing piece. By using the sealed steel pipe, the preset water intaking depth can be reached at one time, and multilayer water intaking at different depth at a planar water intake position can be realized continually. The influences generated by being contacted with air and the human pollution on the obtained water sample can be avoided, so as to ensure the quality of the water sample, and the veracity of physics and chemical assaying for the water sample. The system of the invention is characterized in that the operation is convenient, the water intaking efficiency is high, the quality of the water sample is high, the cost is low and the water proof effect is good.

Description

[0001] technical field [0002] The invention relates to a geotechnical engineering investigation technology, in particular to a static pressure layered water intake system. Background technique [0003] According to the relevant requirements of Chapter 12 of the current "Code for Geotechnical Engineering Investigation" (GB50021-2001) 2009 Edition: "When the concrete structure is in groundwater or surface water, water samples should be taken for water corrosion testing", "Water samples It should be taken at the depth where the concrete structure is located, and when there are multiple layers of groundwater, water samples should be taken layer by layer, and each site should not be less than 2 pieces." [0004] When taking water samples in the current engineering survey, it is usually drilled into a borehole in advance, and then a casing is set in the hole. After reaching the predetermined position, corresponding measures need to be taken to stop the water, and then the ground...

AI Technical Summary

Problems solved by technology

Such methods are very cumbersome, costly, and have a long construction period, and there are many uncertain factors that lead to unsuccessful water extraction

Especially for loose and thick sand layers, holes are easy to collapse, water can not be effectively stopped, and it is difficult for the casing to reach the predetermined water intake position

Traditional water intake methods cannot solve the problem of continuous water intake

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