CN110774432A - Novel automatic maintenance method for concrete pipe pile - Google Patents
Novel automatic maintenance method for concrete pipe pile Download PDFInfo
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- CN110774432A CN110774432A CN201911031952.9A CN201911031952A CN110774432A CN 110774432 A CN110774432 A CN 110774432A CN 201911031952 A CN201911031952 A CN 201911031952A CN 110774432 A CN110774432 A CN 110774432A
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- pool
- pipe pile
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- steam curing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a novel automatic maintenance method of a concrete pipe pile, which comprises the following steps of standing a semi-finished product of the concrete pipe pile, hoisting the pipe pile into a steam curing pool, injecting water with the temperature of 8-10 ℃, covering a pool cover, sealing with water, and standing for 30 minutes; then heating to 16-22 ℃ every half hour, and stopping heating when the temperature is raised to 90-95 ℃; when the temperature is kept at 90-95 ℃, the temperature rise is stopped, and the constant temperature is kept for 145-155 minutes; and after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 25-35 minutes, and then opening the cover to lift the pile and demoulding. The method realizes the effect of recycling by recycling the residual steam in the still kettle and then introducing the hot water in the evaporation tank after maintenance into the other evaporation tank, can improve the economic benefit of enterprises by improving the maintenance process, and is consistent with the environment-friendly production and energy-saving production process advocated by the state.
Description
Technical Field
The invention relates to the technical field of concrete pipe piles, in particular to a novel automatic concrete pipe pile maintenance method.
Background
The tubular pile is divided into a prestressed concrete tubular pile and a prestressed high-strength concrete tubular pile according to the concrete strength grade or effective pre-compressive stress, the prestressed concrete tubular pile is PC in code, the prestressed high-strength concrete tubular pile is PHC in code, the thin-wall tubular pile is PTC in code, the concrete strength of the PC pile is not lower than C60, the thin-wall tubular pile is not lower than C60 in strength grade, the concrete strength of the PHC pile is not lower than C80, the prestressed concrete tubular pile can be divided into a post-tensioning prestressed tubular pile and a pre-tensioning prestressed tubular pile, the pre-tensioning prestressed tubular pile is a thin and long concrete prefabricated component with a cylindrical barrel body, an end plate, a steel ferrule and the like, and is manufactured by adopting a pre-tensioning prestressed process and a centrifugal molding process.
With the improvement of the importance degree of modern buildings and the continuous increase of the building height, higher requirements are put forward on the bearing capacity of the foundation, the natural foundation cannot better bear the load transmitted by the upper buildings, so the natural foundation is used, and a treatment mode is adopted, namely reinforced concrete is used as a foundation pile of the foundation, and the pile is pressed into the ground by a pile press to form a foundation pile, so that the upper part of the foundation pile bears the buildings.
In the production process of the concrete pipe pile, two traditional modes of demoulding and curing of the pipe pile are provided, wherein the first mode is natural curing, and the pipe pile is long in time and gradually eliminated due to slow turnover of a mould; at present, the second steam curing is mostly used, steam is flushed when a steam curing pool cover is opened at the final stage of curing, steam is fumigated, the work safety is high, the waste and the environment pollution are caused, the tubular pile curing cost is increased, the enterprise benefit is greatly influenced by the defects existing in the current curing process, and therefore a novel automatic concrete tubular pile curing method is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel automatic concrete pipe pile maintenance method.
A novel automatic maintenance method of a concrete pipe pile comprises the following steps,
s1, standing the semi-finished product of the concrete pipe pile, lifting the pipe pile into a steam-curing pool, then injecting water with the temperature of 8-10 ℃, covering a pool cover, sealing with water, and standing for 30 minutes;
s2, heating to 16-22 ℃ every half hour, and stopping heating when the temperature is raised to 90-95 ℃;
s3, stopping heating when the temperature is kept at 90-95 ℃, and keeping the constant temperature for 145-155 minutes;
and S4, after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 25-35 minutes, and then opening the cover to hang the pile and demoulding.
Preferably, the inner walls of the steam-curing ponds are provided with heat insulation plates, and the side walls of the steam-curing ponds are provided with steam circulation pipelines.
Preferably, the tank cover is sealed by water, and the temperature of the inside of the tank is consistent.
Preferably, the condensed water recovered in the autoclave is injected into the steam-curing pool to be used as the curing water of the steam-curing pool.
Preferably, the cooling time in the steam-curing pool is 35 minutes.
Preferably, the constant temperature in the steam-curing pool is kept for 150 minutes.
Preferably, the steam-curing pool comprises a water inlet, a water outlet, a temperature controller and a liquid level sensor, and when the water level in the S2 is lower than the liquid level sensor, hot water is automatically injected into the steam-curing pool.
According to the novel automatic curing method for the concrete pipe pile, residual steam in the autoclave is recycled, and hot water in the evaporation tank after curing is introduced into the other steam curing tank, so that the recycling effect is realized, the environment of a workshop workpiece is improved, resources are saved, the curing cost is reduced, the temperature in the steam curing tank can be reduced more slowly by arranging the heat insulation plate on the inner wall of the steam curing tank, the heat insulation in the steam curing tank is kept for a long time, the heating time in the steam curing tank is shortened, and the energy is saved.
In conclusion, the economic benefit of enterprises can be improved through the improvement of the maintenance process, and the method is consistent with the environment-friendly production and energy-saving production process advocated by the state.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
The invention provides a novel automatic maintenance method of a concrete pipe pile, which comprises the following steps,
s1, standing the semi-finished product of the concrete pipe pile, then hanging the pipe pile into a steam curing pool, then injecting water with the temperature of 10 ℃, covering a pool cover, sealing with water, and standing for 30 minutes;
s2, heating to 22 ℃ every half hour, and stopping heating when the temperature is raised to 95 ℃;
s3, stopping heating when the temperature is kept at 95 ℃, and keeping the constant temperature for 155 minutes;
and S4, after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 35 minutes, and then opening the cover to lift the pile and demoulding.
Example two
The invention provides a novel automatic maintenance method of a concrete pipe pile, which comprises the following steps,
s1, standing the semi-finished product of the concrete pipe pile, then hanging the pipe pile into a steam curing pool, then injecting 9 ℃ water, covering a pool cover, sealing with water, and standing for 30 minutes;
s2, heating to 20 ℃ every half hour, and stopping heating when the temperature is raised to 93 ℃;
s3, stopping heating when the temperature is kept at 93 ℃, and keeping the constant temperature for 150 minutes;
and S4, after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 35 minutes, and then opening the cover to lift the pile and demoulding.
EXAMPLE III
The invention provides a novel automatic maintenance method of a concrete pipe pile, which comprises the following steps,
s1, standing the semi-finished product of the concrete pipe pile, then hanging the pipe pile into a steam curing pool, then injecting water with the temperature of 8 ℃, covering a pool cover, sealing with water, and standing for 30 minutes;
s2, heating the mixture for 16 ℃ every half hour, and stopping heating when the temperature is raised to 90 ℃;
s3, stopping heating when the temperature is kept at 90 ℃, and keeping the constant temperature for 145 minutes;
and S4, after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 25 minutes, and then opening the cover to lift the pile and demoulding.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A novel automatic maintenance method of a concrete pipe pile is characterized by comprising the following steps,
s1, standing the semi-finished product of the concrete pipe pile, lifting the pipe pile into a steam-curing pool, then injecting water with the temperature of 8-10 ℃, covering a pool cover, sealing with water, and standing for 30 minutes;
s2, heating to 16-22 ℃ every half hour, and stopping heating when the temperature is raised to 90-95 ℃;
s3, stopping heating when the temperature is kept at 90-95 ℃, and keeping the constant temperature for 145-155 minutes;
and S4, after the steam curing is finished, pumping hot water in the steam curing pool into the other steam curing pool, reducing the temperature in the steam curing pool, cooling, keeping for 25-35 minutes, and then opening the cover to hang the pile and demoulding.
2. The novel automatic concrete pipe pile curing method according to claim 1, wherein insulation boards are arranged on the inner walls of the steam curing pool, and steam circulation pipelines are arranged on the side walls of the steam curing pool.
3. The novel automatic maintenance method for the concrete pipe pile according to claim 1, wherein the pool cover is sealed by water, and the temperature of the pool is consistent from top to bottom.
4. The method for automatically curing the concrete pipe pile according to claim 1, wherein the condensed water recovered from the autoclave is injected into the steam curing pool as curing water of the steam curing pool.
5. The novel automatic curing method for the concrete pipe pile according to claim 1, wherein the cooling time in the steam curing pool is 35 minutes.
6. The novel automatic curing method for the concrete pipe pile according to claim 1, wherein the constant temperature in the steam curing pool is kept for 150 minutes.
7. The novel automatic concrete pipe pile curing method according to claim 1, wherein the steam curing pool comprises a water inlet, a water outlet, a temperature controller and a liquid level sensor, and when the water level in the S2 is lower than the liquid level sensor, hot water is automatically injected into the steam curing pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031952.9A CN110774432A (en) | 2019-10-28 | 2019-10-28 | Novel automatic maintenance method for concrete pipe pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031952.9A CN110774432A (en) | 2019-10-28 | 2019-10-28 | Novel automatic maintenance method for concrete pipe pile |
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| CN110774432A true CN110774432A (en) | 2020-02-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318703A (en) * | 2020-10-31 | 2021-02-05 | 宁乡宁华新材料有限公司 | Tubular pile steam treatment method |
| CN114670323A (en) * | 2022-03-31 | 2022-06-28 | 北京港创瑞博混凝土有限公司 | Steam curing device for concrete pipe and steam curing process thereof |
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| CN112318703A (en) * | 2020-10-31 | 2021-02-05 | 宁乡宁华新材料有限公司 | Tubular pile steam treatment method |
| CN114670323A (en) * | 2022-03-31 | 2022-06-28 | 北京港创瑞博混凝土有限公司 | Steam curing device for concrete pipe and steam curing process thereof |
| CN114670323B (en) * | 2022-03-31 | 2023-08-29 | 北京港创瑞博混凝土有限公司 | Steam curing device for concrete pipe and steam curing process thereof |
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Application publication date: 20200211 |
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