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Precipitation well construction device

A technology of construction device and dewatering well, which is applied to the drilling driving device, drilling equipment, infrastructure engineering and other directions in the wellbore, can solve the problems of low construction efficiency, poor effect and many processes, save construction period and materials, The construction difficulty is high and the effect of avoiding the collapse of the hole

Pending Publication Date: 2019-09-06
WUHAN YIYE CONSTR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current construction of dewatering wells needs to arrange steel wire mesh and nylon mesh around the pipes, and backfill anti-filter materials on both sides. There are many processes, complicated procedures, low construction efficiency, and poor results. In addition, if there is construction waste in the ground, circular drilling will be required. Difficult to construct, easy to cause hole collapse

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] A precipitation well construction device, the working steps are:

[0020] S1, such as figure 1 As shown, locate the dewatering well, transport the air compressor 1, drilling rig 2, presser 3, connecting rod 4, hammer head 6 and downwater pipe 5 to the dewatering well position, wherein the air compressor 1 supplies energy for the drilling rig 2, and presses The device 3 is installed on the rig 2, such as figure 2 As shown, the hammer head 6 is threadedly connected to the bottom end of the connecting rod 4, such as image 3 As shown, the downcomer 5 is provided with a filter material hole 8 along the line (the distance between the filter material hole 8 is 15-25cm, preferably 20cm, and the effect is to prevent impurities from entering the downcomer 5 while being permeable) and the bottom end is welded and fixed with a reinforcement ring 7 , ham...

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Abstract

The invention discloses a precipitation well construction device. The precipitation well construction device comprises an air compressor, a drilling rig, a driving-pressing device, a connecting rod, ahammerhead and a downcomer, the air compressor supplies energy to the drilling rig, the driving-pressing device is mounted on the drilling rig, the hammerhead is mounted at the bottom end of the connecting rod, the downcomer is provided with a material filtering hole along the line, a reinforcing ring is mounted at the bottom end of the downcomer, the outer diameter of the hammerhead is slightlyless than the inner diameter of the downcomer and slightly greater than the inner diameter of the reinforcing ring, the connecting rod and the hammerhead are inserted into the downcomer, and the top end of the connecting rod is mounted on the driving-pressing device. The precipitation well construction device is low in construction difficulty, the construction process is reduced, the constructionperiod and materials are saved, and hole collapse is avoided.

Description

technical field [0001] The invention belongs to the field of municipal engineering construction, and in particular relates to a construction device for a dewatering well. [0002] technical background [0003] In municipal engineering, when carrying out deep foundation pit construction, it is necessary to cooperate with dewatering wells for construction. At present, during the construction of dewatering wells, the point is drilled circularly, and then the mud wall is used, and the pipe is processed at the same time. The steel wire mesh and nylon mesh are wrapped around the pipe. After the drilling is successful, the pipe is put into the hole, and then the well is washed. , and then backfill the reverse filter material on both sides of the pipe, and finally run the dewatering well. The current construction of dewatering wells needs to arrange steel wire mesh and nylon mesh around the pipes, and backfill anti-filter materials on both sides. There are many processes, complicate...

Claims

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Application Information

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IPC IPC(8): E21B4/14E02D19/10
CPCE21B4/14E02D19/10
Inventor 李智夏颖钟卫斌孙仕斌刘明周廖红玉金锋杨济滔
Owner WUHAN YIYE CONSTR ENG
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