Reverse construction method for pebble foundation swirling well

A construction method and technology of whirlpool wells, which are applied in infrastructure engineering, excavation, construction, etc., can solve the problems of difficulty in guaranteeing quality requirements and many potential safety hazards, and achieve the goal of reducing expenses, labor intensity, and construction costs. Effect

Inactive Publication Date: 2012-11-07
TIANJIN 20 CONSTR
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AI Technical Summary

Problems solved by technology

[0002] Usually, the caisson sinking method is used for the construction of the swirling well, which has strict requirements on geological

Method used

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  • Reverse construction method for pebble foundation swirling well
  • Reverse construction method for pebble foundation swirling well
  • Reverse construction method for pebble foundation swirling well

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Example Embodiment

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0022] See Figure 1 ~ Figure 4 , A top-down construction method for a cobble foundation swirling well, including the following steps:

[0023] 1) Measuring and positioning to determine the positions of the center of the swirling well, the shaft wall 2 and the crown beam 1;

[0024] 2) Excavate the earth to form the foundation pit of the first shaft wall and crown beam 1, and form a first annular groove at the bottom of the first shaft wall corresponding to the second shaft wall to accommodate the first shaft wall. Rebar 6 is reserved vertically at the lower end of the shaft wall reinforcement;

[0025] 3) Binding the crown beam steel bar and the first shaft wall steel bar, the first shaft wall steel bar is provided with the lower end vertical reserved steel bar 6 exten...

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Abstract

The invention discloses a reverse construction method for a pebble foundation swirling well. The construction method comprises the following steps: 1), measuring and positioning to determine the positions of a center, a well wall and a top beam of the swirling well; 2), excavating earthwork to form foundation pits of first section of well wall and the top beam; 3), binding top beam reinforcement and the first section of well wall reinforcement; 4), installing the top beam and an inner side mould board of the first section of well wall; casting concrete, so that the top beam and the first section of well wall form an integer; 5), forming a foundation pit of the second section of well wall; 6), binding second section of well wall reinforcement, connecting the upper end of a vertical reinforcement in the second section of the well wall reinforcement with a lower vertical preserved reinforcement of the first section of well wall reinforcement; 7), installing the inner side mould board of the second section of well wall, and casting the second section of well wall; 8), repeating the steps 5) to 7), until the construction for all well walls is completed; and 9), finishing the construction of a concrete structure inside the well. The reverse construction method is simple and easy, high in efficiency, convenient to control engineering quality, safe and reliable.

Description

technical field [0001] The invention relates to a reverse construction method of a swirl well, in particular to a reverse construction method of a pebble foundation swirl well. Background technique [0002] Usually, the caisson sinking method is used for the construction of the swirl well, which has strict requirements on the geological conditions and the construction site, and it is difficult to guarantee the quality requirements, and there are many potential safety hazards. Especially under the conditions of pebble foundation, the bearing capacity of the foundation is relatively high, and the caisson cannot sink. Therefore, it is necessary to study a new construction method of the swirl well. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a pebble foundation swirl well reverse construction method which is convenient for engineering quality control. [0004] The technical solution adopte...

Claims

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Application Information

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IPC IPC(8): E02D17/06E02D17/08
Inventor 肖策郑玉忠黄占成孙继刚肖世亮
Owner TIANJIN 20 CONSTR
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