CN106120656A - A kind of constructing device changing waterstop under water and using method thereof - Google Patents

Abstract

A kind of constructing device changing waterstop under water and using method thereof, constructing device therein is that interior the covering along aqueduct expansion joints of aqueduct is provided with access path (2), and it is provided with pressurization channel-section steel (5) between access path (2) bottom and aqueduct sidewall (3) and aqueduct base plate (4), the groove face of pressurization channel-section steel (5), towards aqueduct sidewall (3) and aqueduct base plate (4), is provided with pressurised airbag (6) in pressurization channel-section steel (5)；Using method therein include make sense channel (2), installation construction device, the water taken away in access path (2) cavity and by pressurised airbag (6) inflating pressure, change original waterstop (1) and this constructing device entirety hung out step.Effectively seal and prevent external water stream from entering in access path (2), create the space of a construction for underwater construction.

Description

A construction device for underwater waterstop replacement and its application method

technical field

The invention relates to a construction device for underwater replacement of a water stop, more specifically to a construction device for underwater replacement of a water stop and a method for using the same, and belongs to the technical field of aqueduct water stop replacement.

Background technique

An aqueduct is an overhead water delivery structure that transports water across river canals, roads, ravines, etc. It is one of the most widely used intersecting building structures in canal building structures. In addition to being used to transport canal water for farmland irrigation, urban domestic water, and industrial water transport across river basins, the aqueduct can also provide drainage and diversion.

As aqueducts adopt more and more shell tanks and thin-walled structures, the problems of anti-seepage at joints and expansion joints between aqueduct components also increase. In order to prevent the leakage of the aqueduct, two waterstops are usually installed at the expansion joints of the aqueduct, one is an embedded waterstop that is poured into the concrete; the other is a surface-mounted waterstop that is installed on the aqueduct The surface of the expansion joint is convenient for future maintenance and replacement. However, for some important aqueducts, it is difficult to stop the water supply to give you space and time for maintenance once the water is passed through, so it is faced with the problem of repairing and replacing the expansion joint waterstop when there is water flow.

Contents of the invention

The object of the present invention is to provide a construction device for underwater replacement of waterstops and a method of use thereof for existing problems such as difficult maintenance and replacement of expansion joint waterstops in the presence of water flow.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a construction device for underwater replacement of waterstops, wherein the aqueduct is covered with maintenance channels along the expansion joints of the aqueduct.

A pressurized channel steel is arranged between the bottom of the maintenance passage, the side wall of the aqueduct and the bottom plate of the aqueduct, the groove surface of the pressurized channel steel faces the side wall of the aqueduct and the bottom plate of the aqueduct, and a pressurized air bag is arranged in the pressurized channel steel.

A flexible waterproof material is filled between the pressurized air bag, the side wall of the aqueduct and the bottom plate of the aqueduct.

A method for using a construction device for underwater replacement of a waterstop, comprising the following steps:

Step 1: Cut the material according to the requirements, make the size of each component of the inspection channel, and then make the detection channel;

Step 2, sink the installed maintenance channel into the aqueduct and install it at the position of the expansion joint water stop;

Step 3: Pump out the water in the cavity of the maintenance channel, and at the same time, inflate the pressurized air bag to pressurize the pressurized channel steel, the side wall of the aqueduct and the bottom plate of the aqueduct by using the external water pressure of the maintenance channel, and the flexible waterproof material will The gap between the pressurized air bag and the side wall of the aqueduct and the bottom plate of the aqueduct is completely filled, so as to realize the water isolation function between the maintenance channel and the outer water body;

Step 4, after the water in the maintenance channel is pumped out, replace the original water stop belt;

Step 5: After the installation of the waterstop is checked and accepted, the construction device will be hoisted out as a whole.

Described step one comprises the following steps:

Step 1, making the steel structure skeleton of the maintenance channel;

Step 2, welding the pressurized channel steel and the steel structure skeleton of the maintenance channel into a whole;

Step 3, placing the uninflated pressurized air bag in the pressurized channel steel;

Step 4, fixing the flexible waterproof material, the pressurized channel steel and the pressurized air bag as a whole.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, an inspection passage is covered and installed in the aqueduct along the waterstop of the expansion joint of the aqueduct, and then the water in the inspection passage cavity is pumped away, and the pressurized air bag is inflated and pressurized at the same time; The steel is pressed tightly between the side wall of the aqueduct and the bottom plate of the aqueduct, so that it can be effectively sealed to prevent external water flow from entering the maintenance channel, creating a construction space for underwater construction.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is the elevation view of the present invention.

In the figure, a waterstop 1, an inspection channel 2, an aqueduct side wall 3, an aqueduct bottom plate 4, a pressurized channel steel 5, a pressurized air bag 6, and a flexible waterproof material 7.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figure 1 to Figure 2, a construction device for underwater replacement of waterstops creates a construction space for underwater maintenance and replacement of expansion joint waterstops 1, and is specifically suitable for surface-mounted waterstops of aqueducts or other hydraulic structures. The hose is repaired or replaced; the aqueduct is covered with an inspection channel 2 along the expansion joint of the aqueduct. The maintenance channel 2 is a steel structure channel.

Referring to Fig. 2, a pressurized channel steel 5 is arranged between the bottom of the maintenance channel 2 and the aqueduct side wall 3 and the aqueduct bottom plate 4; the groove surface of the pressurized channel steel 5 faces the aqueduct side wall 3 and the aqueduct bottom plate 4, A pressurized air bag 6 is arranged in the pressurized channel steel 5 .

Referring to FIG. 2 , a flexible waterproof material 7 is filled between the pressurized air bag 6 , the aqueduct side wall 3 and the aqueduct bottom plate 4 .

Referring to Fig. 1 to Fig. 2, a method for using a construction device for underwater replacement of an aqueduct waterstop comprises the following steps:

Step 1: Cutting the material according to the requirements, making the dimensions of the components of the inspection channel 2, and then making the detection channel 2.

Step 2, sink the installed maintenance channel 2 into the aqueduct, and install it at the position of the expansion joint waterstop 1.

Step 3: pump out the water in the cavity of the maintenance channel 2, and at the same time inflate the pressurized air bag 7 to pressurize the pressure between the pressurized channel steel 5 and the aqueduct side wall 3 and the aqueduct bottom plate 4 by using the external water pressure of the maintenance channel 2. Tight; the flexible waterproof material 7 completely fills the gap between the pressurized airbag 6 and the aqueduct side wall 3 and the aqueduct bottom plate 4, thereby realizing the water-proof effect between the maintenance channel 2 and the outer water body.

Step 4: After the water in the maintenance channel 2 is pumped out, the original water stop 1 is replaced.

Step five, after the installation of the waterstop 1 is checked and accepted, the construction device is hoisted out as a whole.

Specifically, the step one includes the following steps:

Step 1, make the steel structure skeleton of the maintenance channel 2.

Step 2, welding the pressurized channel steel 5 and the steel structure skeleton of the maintenance channel 2 into a whole.

Step 3, placing the uninflated pressurized air bag 6 in the pressurized channel steel 5 .

Step 4, fixing the flexible waterproof material 7, the pressurized channel steel 5 and the pressurized airbag 6 as a whole.

Referring to Fig. 1 to Fig. 2, the present invention covers and installs an inspection passage 2 along the aqueduct expansion joint waterstop 1 in the aqueduct, then pumps away the water in the inspection passage 2 cavity, and inflates the pressurized air bag 6 at the same time; Utilize the external water pressure of the maintenance channel 2 to compress the pressurized channel steel 5, the side wall 3 of the aqueduct and the bottom plate 4 of the aqueduct, so as to effectively seal and prevent the external water flow from entering the maintenance channel 2, creating a construction environment for underwater construction It solves the problem of maintenance and replacement of expansion joint waterstops under the condition of water flow.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, some simple deduction or replacement can also be made without departing from the concept of the present invention, and the above structures should be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. the constructing device changing waterstop under water, it is characterised in that: cover along aqueduct expansion joints in described aqueduct Access path (2) is installed.

A kind of constructing device changing aqueduct waterstop under water the most according to claim 1, it is characterised in that: described inspection Repair and be provided with pressurization channel-section steel (5), described pressurization channel-section steel (5) between passage (2) bottom and aqueduct sidewall (3) and aqueduct base plate (4) Groove face towards aqueduct sidewall (3) and aqueduct base plate (4), be provided with pressurised airbag (6) in pressurization channel-section steel (5).

A kind of constructing device changing aqueduct waterstop under water the most according to claim 2, it is characterised in that: described adds Flexible waterproof material (7) it is filled with between pressuring gasbag (6) and aqueduct sidewall (3) and aqueduct base plate (4).

4. the using method of the constructing device changing waterstop under water, it is characterised in that comprise the following steps:

Step one, blanking on request, makes the size of access path (2) each component, then makes sense channel (2)；

Step 2, sank to, in water aqueduct, be installed on the position of expansion joint water stop (1) by mounted access path (2)；

Step 3, extracts out the water in access path (2) cavity, simultaneously by pressurised airbag (7) inflating pressure, utilizes access path (2) effect of external water pressure power will compress between pressurization channel-section steel (5) and aqueduct sidewall (3) and aqueduct base plate (4), flexible waterproof material (7) gap between pressurised airbag (6) and aqueduct sidewall (3) and aqueduct base plate (4) is filled up completely with, thus realizes access path (2) impermeable role and between the water body of outside；

Step 4, after Awaiting Overhaul passage (2) interior water exhausts, changes original waterstop (1)；

Step 5, hangs out this constructing device entirety after acceptance(check) after waterstop (1) installation.

The using method of a kind of constructing device changing waterstop under water the most according to claim 4, it is characterised in that institute The step one stated includes below step:

Step one, makes the steel structure framework of access path (2)；

Step 2, is welded into entirety by the steel structure framework of pressurization channel-section steel (5) with access path (2)；

Step 3, is placed in the pressurised airbag (6) of unaerated in pressurization channel-section steel (5)；

Step 4, is fixed as entirety by flexible waterproof material (7) with pressurization channel-section steel (5) and pressurised airbag (6).