A light-duty well point downpipe hole-forming device and method thereof

Abstract

The invention relates to a light well point precipitation pipe pore-forming device and a method thereof. The method comprises the following steps of (1) preparing precipitation pipes according to engineering requirements; (2) forcibly tamping the precipitation pipes into the soil by an external force; (3) carrying out well flushing on the precipitation pipes by using high-pressure water; (4) connecting each precipitation pipe to a header pipe for test pumping. The device comprises the precipitation pipes and a hammering sinking device which is used in a matching way, wherein openings are formed in the top ends of the precipitation pipes; permeable holes are distributed in the lower parts of the precipitation pipes; the bottom ends of the precipitation pipes are sealed; the hammering sinking device comprises a thumper and an air compressor; the air compressor is connected with the thumper by a pressure hose. The light well point precipitation pipe pore-forming device and the method thereof have the beneficial effects that the structure is simple, the cost is low, the use is convenient, the well forming is rapid, the application at regions which are not conveniently punched and form wells is realized, the precipitation pipes are used as water pumping pipes and protection walls of holes formed in the soil, dual-purpose property is realized, and the pipe bodies meet the requirements of vacuum water pumping and buried strength stability.

Description

Technical field [0001] The invention relates to the field of construction technology, in particular to a light-weight well point dewatering pipe hole forming device and a method thereof. Background technique [0002] At present, percussion or rotary drilling rigs are generally used to form holes in well points. The impact type uses a high-pressure water pump, which is connected to a special steel pipe through a hose. The end of the steel pipe is equipped with water spray holes. Two operators hold the steel pipe up and down at the position of the water collection pipe until a hole is formed. The depth of the hole is generally greater than The filter tube is deep. When punching the hole, the flushing tube should be inserted vertically into the water and swinging left and right. After the hole is formed, the flushing tube should be pulled out immediately and the dewatering pipe should be inserted to avoid collapse, complicated operation and slow hole formation. The use of rotary dr...

AI Technical Summary

Problems solved by technology

The impact type uses a high-pressure water pump and is connected to a special steel pipe through a hose. The end of the steel pipe is equipped with a water spray hole. Two operators hold the steel pipe and pump it up and down at the position of the water collection pipe until a hole is formed. The depth of the hole is generally less than The filter tube is deep. When punching, it is necessary to insert the flushing tube vertically into the water and swing it up and down. After the hole is formed, immediately pull out the flushing tube and insert the downpipe to avoid collapse. The operation is complicated and the hole is formed slowly.

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