Water cooling temperature control method for optimal water temperature difference of lining concrete with different thicknesses

A technology of water cooling and water temperature difference, applied in design optimization/simulation, special data processing application, geometric CAD, etc., can solve the problem of lack of scientific regulation of lining concrete cooling time, water temperature and temperature drop rate, etc., to achieve temperature control Anti-cracking, scientific effect

Active Publication Date: 2021-07-23
清远市水利水电工程监理有限公司 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

However, at present, there is no method to scientifically control parameters such as water cooling time, water temperature a

Method used

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  • Water cooling temperature control method for optimal water temperature difference of lining concrete with different thicknesses
  • Water cooling temperature control method for optimal water temperature difference of lining concrete with different thicknesses
  • Water cooling temperature control method for optimal water temperature difference of lining concrete with different thicknesses

Examples

Experimental program
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Example Embodiment

[0102] 3 # Pressure-spilled flood hole, uncompressed bombs, 1st warehouse, 0.8M thickness, a-type lining, concrete water cooling optimization control

[0103] 3.8m thickness of the flooding hole slope section Figure 10 , The city gate hole section, the direction of the flora opening is set to the construction slit, II surrounding rock, concrete strength C 90 35. Concrete 2 poured: first side wall arch, rear plate. Here, the edge of the side arch lining concrete is described herein.

[0104] like figure 2 As shown, the optimum water temperature difference of the concrete provided by the present embodiment, including the following:

[0105] Step 1. Analyze the lining structure concrete water cooling temperature control related information, including: collecting information related to the temperature-controlled anti-cracking of lining concrete, analyzing the importance of temperature control cracking of lining concrete, design technology requirements and construction temperature con...

Example Embodiment

[0125] 3 # Sliding flood hole, uncompressed bombs, 11th warehouse 1.0M thickness B-type lining concrete water cooling optimization control

[0126] The 11th warehouse 1.0M thickness of the flood flooding hole is shown in the Structure of the thickness. Figure 11 , City gate hole section, concrete strength C 90 35. III surrounding rock. Concrete 2 poured: first side wall arch, rear plate. Here, the edge of the side arch lining concrete is described herein.

[0127] like figure 2 As shown, the optimum water temperature difference of the concrete provided by the present embodiment, including the following:

[0128] Step 1. Analyze the lining structure concrete water cooling temperature control related information, including: collecting information related to the temperature-controlled anti-cracking of lining concrete, analyzing the importance of temperature control cracking of lining concrete, design technology requirements and construction temperature control measures.

[0129] The...

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Abstract

According to the optimal water temperature difference water cooling temperature control method for the lining concrete with different thicknesses, parameters such as the water temperature difference, the water temperature, the cooling time and the temperature drop rate suitable for the lining concrete with different thicknesses can be objectively and accurately obtained, water cooling is conducted on the lining structure based on the parameters, and temperature control and cracking prevention are scientifically and reasonably achieved. The water cooling temperature control method comprises the following steps: step 1, acquiring lining concrete water cooling temperature control data; 2, according to the thickness of lining concrete, calculating a water cooling optimization control water temperature difference Twy; 3, estimating the highest temperature Tmax in the lining concrete according to the thickness; 4, calculating a water cooling optimization control water temperature Twy; 5, calculating water cooling optimization time Tj according to the thickness of the lining concrete; 6, calculating the optimal control temperature drop rate Vc according to the lining concrete thickness; and 7, optimizing water cooling measures of lining concrete with different thicknesses according to the water cooling optimization control water temperature Twy, the optimization time Tj and the optimization control temperature drop rate Vc.

Description

technical field [0001] The invention belongs to the technical field of concrete temperature control and anti-cracking, and in particular relates to a temperature control method for cooling through water with optimal water temperature difference for lining concrete with different thicknesses. Background technique [0002] Large-volume concrete such as gravity dams are buried with cooling water pipes for cooling. In the initial stage, cold water or low-temperature river water is passed to reduce the maximum temperature of concrete; For the initial water cooling, the time should be calculated and determined, preferably 10 to 20 days, and the difference between the concrete temperature and the water temperature should not exceed 25°C. Medium-term water cooling should be about 1-2 months, and the difference between the water temperature and the internal temperature of the concrete should not exceed 20-25 °C. The daily temperature drop does not exceed 1.0°C. Due to the expansion...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F119/08
CPCG06F30/13G06F30/23G06F2119/08
Inventor 段亚辉陈浩怀吴博王雷苗婷段次祎
Owner 清远市水利水电工程监理有限公司
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