CN114753388A

CN114753388A - Gravity type sinking head negative pressure drainage construction method

Info

Publication number: CN114753388A
Application number: CN202210389611.4A
Authority: CN
Inventors: 尹洪江; 常兆林; 何欣; 王振勇; 刘剑文
Original assignee: Tianjin Housing Group Construction Engineering General Contraction Co ltd
Current assignee: Tianjin Housing Group Construction Engineering General Contraction Co ltd
Priority date: 2022-01-13
Filing date: 2022-04-14
Publication date: 2022-07-15

Abstract

The invention discloses a gravity type sinking head negative pressure drainage construction method, which comprises the following steps: manufacturing a gravity type sinking head, wherein the gravity type sinking head comprises a balancing weight, the lower part of a water guide pipe is fixed in a through hole in the middle of the balancing weight, and a water filtering net positioned in the through hole is attached to the bottom of the water guide pipe; one end of the first drainage rubber pipe is inserted and sleeved at the upper part of the aqueduct and is tightly connected; connecting the other end of the first drainage rubber hose with a water inlet of a negative pressure gun; one end of a second drainage rubber tube is connected with an air inlet of the negative pressure gun, and the other end of the second drainage rubber tube is connected with an air outlet of the air pump; sinking a gravity type sinking head into a steel frame column member to be pumped or a foundation reinforcement cage; the air pump is started to pump water. The method solves the problem that the accumulated water at the narrow member or the operation surface can not be discharged by a conventional water pump.

Description

Gravity type sinking head negative pressure drainage construction method

Technical Field

The invention relates to a negative pressure pumping and drainage construction method, in particular to a gravity type sinking head negative pressure pumping and drainage construction method.

Background

At present, a large number of steel structures and large-scale reinforced concrete foundation buildings are increasing day by day. Because it all belongs to open-air operation, after experiencing heavy rain, easily cause a large amount of ponding in steel frame column component, in the basis steel reinforcement cage, above-mentioned position space is narrow and small, and current drainage method is for drawing water with the immersible pump or with industrial dust catcher, and these two kinds of equipment all need certain operation space, but the space in steel component and the basis steel reinforcement cage is extremely narrow and small, therefore ponding is difficult to clear away through traditional mode, influences the engineering quality.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a gravity type sinking head negative pressure drainage construction method which is simple and more suitable for draining water in narrow places.

The invention relates to a gravity type sinking head negative pressure drainage construction method, which comprises the following steps:

manufacturing a gravity type sinking head, wherein the gravity type sinking head comprises a balancing weight, the lower part of a water guide pipe is fixed in a through hole in the middle of the balancing weight, and a water filter screen positioned in the through hole is attached to the bottom of the water guide pipe; the upper part of the water guide pipe above the balancing weight is of a hollow cone structure, and the balancing weight and the water guide pipe are of an integrated structure;

step two, one end of the first drainage rubber pipe is inserted and sleeved on the upper part of the water guide pipe and is tightly connected with the water guide pipe;

step three, connecting the other end of the first drainage rubber hose with a water inlet of a negative pressure gun;

step four, connecting one end of a second drainage rubber tube with an air inlet of a negative pressure gun and connecting the other end of the second drainage rubber tube with an air outlet of an air pump;

step five, sinking the gravity type sinking head connected with the first drainage rubber pipe and the second drainage rubber pipe into a steel frame column member to be pumped or a foundation reinforcement cage;

And step six, starting the air pump, enabling the compressed high-pressure air flow to generate a negative pressure effect in the negative pressure gun through the second water discharge rubber pipe, sucking accumulated water in the steel frame column member or the foundation reinforcement cage into a cavity of the negative pressure gun through the first water discharge rubber pipe under the action of atmospheric pressure, and discharging the accumulated water from a water nozzle of the negative pressure gun until the accumulated water in the steel frame column member or the foundation reinforcement cage is emptied.

The invention has the following beneficial effects:

the method solves the problem that the accumulated water at the narrow member or the operation surface can not be discharged by a conventional water pump. And the gravity type submerged headrest can sink to the deepest part of accumulated water by self gravity, can offset the stress of the drainage rubber pipe and keep the optimal water pumping angle, and does not need manual management. The installation once, the self-propelled operation practices thrift the manpower.

Drawings

Fig. 1 is a front view of a gravity type sinking head adopted in the gravity type sinking head negative pressure pumping and draining construction method of the present invention;

fig. 2 is a bottom view of the submersible head shown in fig. 1;

fig. 3 is a perspective view of the submersible head shown in fig. 1;

fig. 4 is a schematic diagram of the application of the gravity type sinking head of the present invention to water pumping in a steel frame column member;

fig. 5 is a schematic diagram of the application of the gravity type sinking head in pumping water in the foundation reinforcement cage.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples.

As shown in the attached drawings, the gravity type sinking head negative pressure drainage construction method comprises the following steps:

firstly, a gravity type sinking head 1 is manufactured, wherein the gravity type sinking head 1 comprises a balancing weight 2, the lower part of a water guide pipe 3 is fixed in a through hole in the middle of the balancing weight 2, and a water filter screen 4 positioned in the through hole is attached to the bottom of the water guide pipe 3; the upper part of the water guide pipe 3 above the balancing weight 2 is of a hollow cone structure. The balancing weight 2 and the water guide pipe 3 are of an integrated structure, can be cast in a component factory or integrally formed by cutting by a machine tool, and can be made of cast iron or steel components.

And step two, inserting one end of the first drainage rubber hose 5-1 at the upper part of the water guide pipe 3 and tightly connecting the two ends, wherein the tight connection is realized by utilizing the elasticity of the first drainage rubber hose.

And step three, connecting the other end of the first drainage rubber hose 5-1 with a water inlet of a negative pressure gun 6 (a conventional finished product).

And step four, connecting one end of a second drainage rubber hose 5-2 with an air inlet of a negative pressure gun 6 and connecting the other end of the second drainage rubber hose with an air outlet of an air pump 7. The air pump can be placed at any position on the periphery of the working face where construction is convenient.

And step five, sinking the gravity type sinking head 1 connected with the first drainage rubber pipe 5-1 and the second drainage rubber pipe 5-2 into a steel frame column member 8 to be pumped or a foundation reinforcement cage 9.

And step six, starting the air pump, enabling the compressed high-pressure air flow to generate a negative pressure effect in the negative pressure gun through the second water discharge rubber pipe 5-2, sucking accumulated water in the steel frame column member or the foundation reinforcement cage into a cavity of the negative pressure gun through the first water discharge rubber pipe 5-1 under the action of atmospheric pressure, and discharging the accumulated water from a water nozzle of the negative pressure gun until the accumulated water in the steel frame column member or the foundation reinforcement cage is emptied.

And (3) detection: the method has the advantages of simple and convenient construction, quick assembly, labor saving, excellent pumping and drainage effects, and 100 percent of construction quality reaching the expected effect.

Claims

1. The gravity type sinking head negative pressure pumping and drainage construction method is characterized by comprising the following steps of:

Step two, inserting one end of the first drainage rubber pipe at the upper part of the aqueduct and tightly connecting the first drainage rubber pipe and the aqueduct;

step five, sinking the gravity type sinking head connected with the first drainage rubber pipe and the second drainage rubber pipe into a steel frame column member or a foundation reinforcement cage to be pumped;