CN103290857A - Conservation method of basic on-site concrete of transmission tower in desert areas - Google Patents

Abstract

The invention discloses a method for curing cast-in-situ concrete for the foundation of power transmission towers in desert areas, which is characterized in that the surface of the foundation concrete is covered with a concrete curing film, and a drip curing device is used to continuously spray the concrete surface in a drip manner during the curing period. Water conservation, in order to save maintenance water consumption under the premise of ensuring the maintenance effect. The drip maintenance device can be processed into a rectangle, square or circle according to the shape of the iron tower foundation to be maintained. The drip maintenance device is mainly composed of a water container, a water injection pipe, a water injection port, a pressure equalizing water pipe, a dripping main pipe, a dripping water pipe and the above. A water container is placed on the bracket, and the bottom end of the water container is connected with a water injection pipe, a pressure equalizing water pipe, a dripping main pipe and a dripping water pipe through the regulating valve at the bottom of the side of the water container. During the maintenance period, the concrete surface is continuously sprayed with water for maintenance in a drip manner, which ensures the concrete maintenance effect; reduces the maintenance water and reduces the labor intensity of the construction personnel.

Description

A maintenance method for cast-in-place concrete for power transmission tower foundations in desert areas

the

technical field

The invention relates to the technical field of cast-in-place concrete maintenance, in particular to a method for maintaining cast-in-situ concrete for power transmission tower foundations in desert areas.

Background technique

Transmission lines often pass through environments such as deserts, Gobi, and high mountains. They often face problems such as drought, water shortage, or transportation difficulties. The concrete maintenance of the iron tower foundation requires a lot of watering and moisturizing maintenance. During the construction, problems such as maintenance conditions not meeting the requirements, insufficient maintenance work, or high maintenance costs may easily occur.

Contents of the invention

In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a casting-in-situ concrete maintenance method for the foundation of power transmission towers in desert areas, which mainly solves the effect of concrete maintenance on the foundation of power transmission line towers in the above-mentioned environment, saves maintenance water, and reduces maintenance costs.

In order to achieve the above object, the present invention adopts the following technical scheme: a method for curing cast-in-place concrete for the foundation of power transmission towers in desert areas, characterized in that, the surface of the foundation concrete is covered with a concrete curing film, and a drip curing device is used during the curing period. Sprinkle water continuously on the concrete surface for maintenance in a drip way, so as to save maintenance water consumption under the premise of ensuring the maintenance effect.

An drip maintenance device for implementing the method according to claim 1, characterized in that, the drip maintenance device can be processed into a rectangle, a square or a circle according to the shape of the iron tower base to be maintained, and the drip maintenance device is mainly composed of It is composed of water container, water injection pipe, water injection port, equal pressure water diversion pipe, drip main pipe, drip water pipe and the regulating valve on it. A water container is placed on the bracket, and the bottom end of the side of the water container is connected to the water injection pipe and the valve through the regulating valve. Pressure equalizing water pipe, drip main and drip water pipe.

The described one is used for the cast-in-situ concrete maintenance method of the transmission iron tower foundation in the desert area, is characterized in that, the concrete curing film is covered on the surface of the foundation concrete, and must be covered with a professional concrete curing film after the concrete formwork is removed, to increase Water retention effect, when paving the concrete curing film, it should be paved while sprinkling water to remove the air in the film to ensure that the concrete curing film is close to the curing surface.

The drip maintenance device described above is characterized in that in order to keep the water pressure of each drip hole basically the same, 3 or 4 equal pressure water diversion pipes are arranged on the water injection port to lead the water into the drip main pipe, and the drip main pipe is on the top, etc. The dripping water pipes are arranged at a distance, and the openings and holes of the water dripping pipes are arranged on a straight line, and a drip speed regulating valve is installed on each dripping water pipe to control the dripping speed.

The drip maintenance device described above is characterized in that the drip maintenance device can be made as a whole or separately, connected by threaded joints, customized according to the shape and size of the maintenance object, and can also be processed into different sizes for flexible combination Set, in order to improve the versatility, the size is adjusted during application, placed on the top of the tower foundation, and the drip outlets are distributed around the foundation.

The drip maintenance device described above is characterized in that the drip maintenance device can be made of plastic or steel, which can be selected according to needs.

The drip maintenance device is characterized in that the water injection port is a four-way or five-way pipe depending on the number of equalizing water pipes.

Beneficial effects of the present invention: effectively reduce maintenance water, improve water resource utilization rate, save energy and increase efficiency; realize continuous and uninterrupted maintenance on the concrete surface during the maintenance period, and ensure the effect of concrete maintenance; reduce the transportation volume of maintenance water, The labor intensity of construction personnel is reduced.

Description of drawings

Fig. 1 is the schematic diagram of drip curing device structure;

Fig. 2 is a structural schematic diagram of the pressure equalizing water diversion pipe 6 dripping main pipe 7 and the dripping water pipe 8 of the spot maintenance device;

FIG. 3 is a schematic top view of the structure in FIG. 2 .

Detailed ways

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

Referring to the accompanying drawings 1-3, wherein: 1 bracket, 2 water container, 3 regulating valve, 4 water injection pipe, 5 water injection port, 6 equal pressure water diversion pipe, 7 dripping main pipe, 8 dripping water pipe, 9 dripping speed regulating valve , 10 drips, 11 foundations.

A method for curing cast-in-situ concrete for the foundation of power transmission iron towers in desert areas according to the present invention, covers the surface of the foundation concrete with a concrete curing film, and uses a drip curing device to continuously spray water on the concrete surface in a drip mode during the curing period, so as to achieve On the premise of ensuring the maintenance effect, save maintenance water consumption.

An drip maintenance device for implementing the method, the drip maintenance device can be processed into a rectangle, a square or a circle according to the shape of the iron tower base to be maintained, and the drip maintenance device is mainly composed of a water container 2, a water injection pipe 4. It is composed of water injection port 5, pressure equalizing water diversion pipe 6, dripping main pipe 7, dripping water pipe 8 and the regulating valve 3 above. A water container 2 is placed on the support 1, and the bottom end of the water container 2 side is connected with a water injection pipe and a pressure equalizing water diversion pipe 6 dripping main pipe 7 and a dripping water pipe 8 through a regulating valve 3 .

The described one is used for the cast-in-place concrete maintenance method of the foundation of the transmission iron tower in the desert area. The surface of the foundation concrete is covered with a concrete curing film. After the concrete formwork is removed, a professional concrete curing film must be used to cover it to increase the water retention effect. When paving the curing film, it is necessary to pave while sprinkling water to remove the air in the film to ensure that the concrete curing film is close to the curing surface.

In the drip maintenance device described above, in order to keep the water pressure of each drip hole 10 basically consistent, 3 or 4 equal pressure water diversion pipes 6 are arranged on the water injection port 5, and the water is led to the drip main pipe 7, and the drip main pipe 7 The dripping water pipe 8 is equidistantly arranged on the top, and the 8 mouthfuls of the water dripping pipe are arranged on a straight line, and a drip speed regulating valve 9 is installed on each water dripping pipe 8 to control the dripping speed.

The drip maintenance device described above, the drip maintenance device can be made into a whole form, or can be made separately, connected by a threaded joint, customized according to the shape and size of the maintenance object, and can also be processed into different sizes, and can be flexibly assembled and packaged. To improve versatility, adjust the size during application, place it on the top of the tower foundation, and distribute the drip outlets around the foundation.

The drip maintenance device described above can be made of plastic or steel, which can be selected according to needs.

According to the drip maintenance device, the water injection port 5 is a four-way or five-way pipe according to the number of equalizing water pipes 6 .

When the present invention is in use, at first, as shown in Figure 1, the concrete curing film is covered on the concrete surface of the iron tower foundation. Adhere to the maintenance surface; be careful when paving to avoid product damage, such as cracks or holes, resulting in reduced maintenance quality. It should be inspected at any time, and if a breach or hole is found, it should be pasted and repaired with transparent glue in time. The bonding method of the membrane and the membrane depends on the wind direction during construction: for the same overlapping joint, the membrane along the wind direction is on the top and the membrane against the wind direction is on the bottom; the facade should be paved and pasted from top to bottom For concrete curing membranes, the overlapping width of two adjacent membranes shall not be less than 100 mm, and the joints shall be glued firmly with adhesive tape.

Secondly, according to the base shape and size of the iron tower, the drip maintenance device shown in Figure 2 is placed on the top surface of the foundation, and the water container is placed on the edge of the foundation, which is more than 1 m higher than the top surface of the foundation. The water container is connected with the water injection pipe 4 2 and the water injection port 5, inject the maintenance water in the water container 2. Open and adjust each control valve so that the dripping water pipes 8 are inserted into the curing film one by one after the water outlet of each water dripping pipe 8 presents a dripping shape at a uniform speed.

According to the observation of humidity in the membrane, adjust the control valve to make the concrete surface fully wet. During the maintenance period, send people to regularly inspect the maintenance site every day, and fill the water container 2 in time until the maintenance period ends.

Claims (7)

1. one kind is used for the cast-in-situ concrete maintenance process of desert area electric power pylon basis, it is characterized in that, at base concrete surface coverage concrete curing film, and use the drop curing means, in curing time, carry out showering curing in the drop mode continuously to concrete surface, save the maintenance water supply volume under the prerequisite that guarantees maintenance effect to reach.

2. drop curing means of implementing the described method of claim 1, it is characterized in that, described drop curing means, iron tower foundation shape difference according to institute's maintenance, can be processed into rectangle, square or circular, described drop curing means is mainly by water container (2), water injection pipe (4), water filling port (5), all press aqueduct (6), the person in charge (7) and dripping of dripping be in charge of (8) and above control valve (3) form, on support (1), be mounted with water container (2), connect water injection pipe (4) in water container (2) bottom, side by control valve (3) and all press the drip person in charge (7) and drip and be in charge of (8) of aqueduct (6).

3. described a kind of for the cast-in-situ concrete maintenance process of desert area electric power pylon basis according to right 1, it is characterized in that, described base concrete surface coverage concrete curing film, be after the concrete form removal, to adopt the concrete curing film of specialty to cover, to increase the water conservation effect, when the concrete curing film paves, to pave while sprinkling water, get rid of the air in the film, be close to maintenance face to guarantee the concrete curing film.

4. a kind of drop curing means according to claim 2, it is characterized in that in order to make each weeper (10) hydraulic pressure keep basically identical, arrange 3 or 4 at water filling port (5) and all press aqueduct (6), water is caused among the person in charge (7) that drips, the person in charge (7) that drips upward equidistantly arranges to drip and is in charge of (8), drip and be in charge of (8) mouthful eyelet and be arranged on the directrix, and drip at each and to be in charge of (8) and to be equipped with and to drip a velocity modulation joint valve (9), control speed of dropping water.

5. a kind of drop curing means according to claim 2, it is characterized in that this drop curing means can be made into integral form, also but split production adopts nipple to connect, according to maintenance object shapes and size customization, also can be processed into different size, the flexible combination suit to improve versatility, is adjusted size during application, be placed in the iron tower foundation top, water dropping openings is distributed in around the basis.

6. a kind of drop curing means according to claim 2 is characterized in that, this drop curing means can also can adopt iron and steel to make by plastic production, selects voluntarily as required.

7. a kind of drop curing means according to claim 2 is characterized in that described water filling port (5) according to all pressing aqueduct (6) quantity difference, is a four-way or five-way pipe.

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