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Design method of big-diameter well

A design method and technology for large wells, applied in drinking water installations, climate change adaptation, climate sustainability, etc., can solve problems such as high safety risks, limited construction methods, and difficulty in ensuring construction quality, and achieve low safety risks and construction. low difficulty effect

Inactive Publication Date: 2017-04-19
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology

Since the soil of the water source in Lhasa is mainly silty sand and pebbles, and the groundwater is loose rock pore water with abundant water levels, the cost of foundation pit dewatering is extremely high, and at the same time, the safety risk is great
At the same time, through investigation, it was found that the local construction equipment in Lhasa is limited, and the construction methods available are limited
Due to the soil layer, there are certain technical risks in adopting the caisson method, and the local construction team lacks engineering experience in caisson construction, so it is difficult to guarantee the construction quality

Method used

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  • Design method of big-diameter well
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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.

[0027] The flow process of a kind of large well design method provided by the invention is as follows: figure 1 shown, combined with figure 2 As shown in the schematic diagram of the large-caliber structure, the specific process of the large-caliber well design method is as follows:

[0028] Step 1: Execute the well wall construction of the large well; wherein, the plain concrete pouring piles are constructed first, and then the reinforced concrete pouring piles are constructed, and the plain concrete pouring piles and the reinforced concrete pouring piles are arranged alternately to...

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Abstract

The invention discloses a design method of a big-diameter well. The method comprises the following steps: firstly, alternately arranging cast-in-place plain concrete piles and cast-in-place reinforced concrete piles, so that a well wall of the big-diameter well is formed; casting an annular crown beam at the upper side of the well wall of the big-diameter well and arranging reserved steel bars on the annular crown beam; then, arranging a steel ring beam at the bottom of the big-diameter well, filling side seams with gravels and casting a plain concrete ring beam; and then, uniformly paving prefabricated slabs on the upper surface of the annular crown beam, and implementing secondary annular crown beam casting at a formed top, so that a first layer of base plate is formed. With the application of the design method, construction difficulty of the entire big-diameter well is reduced, safety risk is reduced and construction cost is reduced, and meanwhile construction quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of groundwater intake, in particular to a large well design method. Background technique [0002] Dakou well is a traditional water intake structure, and its construction method, such as in Lhasa, often adopts the reverse method. Since the soil of the water source in Lhasa is mainly silty sand and pebbles, and the groundwater is loose rock pore water with abundant water levels, the cost of dewatering the foundation pit is extremely high, and at the same time, the safety risk is great. At the same time, it was found through investigation that the local construction equipment in Lhasa is limited and the construction methods available are limited. Due to the soil layer, there are certain technical risks in adopting the caisson method, and the local construction team lacks engineering experience in caisson construction, so it is difficult to guarantee the construction quality. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/10
CPCE03B3/10Y02A20/00
Inventor 魏耀红沈文胡纯皮文强杨涛张定昌蔡红梅
Owner CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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