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Safe sedimentation construction method of sand-free precipitation tube well

A construction method and the technology of the downpipe, which are applied in the basic structure engineering, construction and other directions, can solve the problems of low operation safety, collapse and damage of the well pipe, detachment of the well pipe section, etc., so as to improve the safety performance, the process principle is simple, the Stable and labor-saving operation

Active Publication Date: 2017-07-21
CHINA MCC20 GRP CORP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sandless tube wells are widely used in the field of dewatering engineering because of their low cost and good water permeability. However, their strength is low, and the length of each well tube is 1 meter. The stability is poor when setting the well tubes. Operators need to Stand next to the well hole and use the rope to drag the subsections to sink, and the subsections of the well pipe will be separated if there is a slight shake, causing the well pipes that have sunk into the well hole to collapse and damage, and the operation safety is low. If the soil in the well hole Loosing and collapsing will cause heavy loss of life and property

Method used

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  • Safe sedimentation construction method of sand-free precipitation tube well
  • Safe sedimentation construction method of sand-free precipitation tube well
  • Safe sedimentation construction method of sand-free precipitation tube well

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] refer to Figure 1-16 , The support frame 1 that this sand-free downcomer well safety sinking construction method adopts comprises base 11, support rod 13, load-bearing top ring 14, single pulley 110, double pulley 140, and coordinating device comprises bottom drag cover plate 9.

[0042]Step S1, install the support frame before the operation, the support frame includes a base 11 with a circular cross-section, four support rods 13, and a load-bearing co...

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Abstract

The invention discloses a safe sedimentation method of a sand-free precipitation tube well in order to solve the problems about sedimentation safety and stability of precipitation sand-free tube wells. The method comprises the following steps that a supporting frame is mounted and composed of a base, supporting rods and a load-bearing neck ring; fixed pulleys are mounted on each of the load-bearing neck ring and the base, each fixed pulley is composed of a pulley body, a pulley shell and a rotating pin, pulley sets are formed by the fixed pulleys on the load-bearing neck ring and the base, and pull ropes are arranged on the pulley bodies; the pull ropes are connected with a bottom supporting cover plate, a first segment of precipitation tube is placed on the bottom supporting cover plate, and the pull ropes are loosened so that the precipitation tube can descend; the first segment of precipitation tube is sedimentated to a portion easy to operate, a second segment of precipitation tube is placed on the first segment of precipitation tube, and the pull ropes continue to be loosened so that the second segment of precipitation tube can be sedimentated to a portion easy to operate; and the next segment of precipitation tube is mounted, and the last step is repeated till all precipitation tubes are sedimentated. Compared with the prior art, the method has the beneficial effects that the process principle is simple, operation is stable and saves labor, a whole set of device can be cyclically used for a long time, and safety performance is high.

Description

technical field [0001] The invention relates to the field of precipitation engineering, in particular to a construction method for safe sinking of a sand-free downflow tube well. Background technique [0002] Sandless tube wells are widely used in the field of dewatering engineering because of their low cost and good water permeability. However, their strength is low, and the length of each well tube is 1 meter. The stability is poor when setting the well tubes. Operators need to Stand next to the well hole and use the rope to drag the subsections to sink, and the subsections of the well pipe will be separated if there is a slight shake, causing the well pipes that have sunk into the well hole to collapse and damage, and the operation safety is low. If the soil in the well hole Loosing and collapsing will cause great loss of life and property. Contents of the invention [0003] In view of this, in order to solve the problem of safety and stability in the settling of a san...

Claims

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Application Information

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IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor 杨前
Owner CHINA MCC20 GRP CORP
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