CN102767187A - Reverse construction method for pebble foundation swirling well - Google Patents
Reverse construction method for pebble foundation swirling well Download PDFInfo
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- CN102767187A CN102767187A CN2012102750728A CN201210275072A CN102767187A CN 102767187 A CN102767187 A CN 102767187A CN 2012102750728 A CN2012102750728 A CN 2012102750728A CN 201210275072 A CN201210275072 A CN 201210275072A CN 102767187 A CN102767187 A CN 102767187A
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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
The present invention relates to a kind of cyclone well reversed construction method, particularly relate to a kind of pebble ground cyclone well reversed construction method.
Background technology
Usually, cyclone well adopts the well sinking method to construct, and geological conditions and construction plant are required relatively strictness, and quality requirement is difficult to be guaranteed, and exists potential safety hazard more.Especially under the pebble ground condition, bearing capacity of foundation soil is than higher, and open caisson can't sink, and therefore needs a kind of new cyclone well job practices of research.
Summary of the invention
The present invention provides a kind of pebble ground cyclone well reversed construction method of being convenient to the Control Engineering quality for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of pebble ground cyclone well reversed construction method may further comprise the steps:
One) measurement and positioning is confirmed the position of cyclone well center, the borehole wall and Guan Liang;
Two) earth excavation forms the foundation ditch of the first segment borehole wall and Guan Liang, and the position of saving the borehole wall in the bottom corresponding second of first segment borehole wall foundation ditch forms first cannelure, is used to hold the vertical reserved steel bar in lower end of first segment borehole wall reinforcing bar;
Three) colligation hat beam steel and first segment borehole wall reinforcing bar, said first segment borehole wall reinforcing bar is provided with the vertical reserved steel bar in the lower end of stretching into first cannelure;
Four) inner side template of the installation Guan Liang and the first segment borehole wall; Build the concrete of the Guan Liang and the first segment borehole wall, make the Guan Liang and the first segment borehole wall form an integral body;
Five) treat that the first segment borehole wall reaches design strength after; Earth excavation; Form the foundation ditch of the second joint borehole wall, and form second cannelure, be used to hold the vertical reserved steel bar in lower end of the second joint borehole wall reinforcing bar in the position of corresponding the 3rd joint borehole wall in bottom of the second joint borehole wall foundation ditch;
Six) the colligation second joint borehole wall reinforcing bar links together the lower end vertical reserved steel bar of the vertical reinforcement upper end in the second joint borehole wall reinforcing bar with first segment borehole wall reinforcing bar; The said second joint borehole wall reinforcing bar is provided with the vertical reserved steel bar in the lower end of stretching into second cannelure;
Seven) inner side template of the installation second joint borehole wall is built the second joint borehole wall;
Eight) repeating step five)～seven), until the construction of accomplishing whole boreholes wall;
Nine) construction of completion well inner concrete structure.
Backfill medium coarse sand in said first cannelure and in said second cannelure; The vertical reinforcement of the vertical reinforcement of first segment borehole wall reinforcing bar and the second joint borehole wall reinforcing bar all adopts the rolling straight thread reinforcing bar, and adjacent two joint borehole wall vertical reinforcements up and down connect with straight screw sleeve on same cross section.
Advantage and good effect that the present invention has are: 1) borehole wall adopts the adverse construction method method, and in work progress, to the problem that occurs, free place to go is understood certainly, and therefore, the quality of cyclone well can both be controlled effectively with safety; 2) adopt steel concrete Guan Liang as cyclone well supporting and protection structure, simultaneously, the borehole wall utilizes the side of itself and the outside soil body to rub power also as the part of supporting and protection structure, has reduced construction cost; 3) make full use of the high characteristics of bearing capacity of foundation soil, reduce supporting and protection structure expense expenditure; 4) adopt the reverse construction cyclone well, other architecture construction around not influencing, total duration node can guarantee; 5) the present invention is applicable to the area that bearing capacity of foundation soil is high, can be in the construction of a lot of organizations in the localities; 6) the present invention is simple and easy to do, efficient is high, be convenient to Control Engineering quality, safe and reliable, has reduced labour intensity to a great extent, has improved operating efficiency, has saved human and material resources and financial resources.
Description of drawings
Fig. 1 is the cyclone well floor map that adopts the present invention's construction;
Fig. 2 is when adopting the present invention to construct the swirling flow borehole wall, the sketch map of borehole wall reinforcing bar lower end reserved steel bar;
Fig. 3 is when adopting the present invention to construct the swirling flow borehole wall, adjacent two joint swirling flow borehole wall formwork sketch mapes up and down;
The cyclone well sectional drawing that Fig. 4 adopts the present invention to construct.
Among the figure: 1, Guan Liang, 2, the borehole wall, 3, the water-swellable adhesive tape, 4, the concrete cast gate, 5, medium coarse sand, 6, the vertical reserved steel bar in lower end.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1～Fig. 4, a kind of pebble ground cyclone well reversed construction method may further comprise the steps:
One) measurement and positioning is confirmed the position of cyclone well center, the borehole wall 2 and hat beam 1;
Two) earth excavation forms the foundation ditch of the first segment borehole wall and hat beam 1, and the position of the corresponding second joint borehole wall forms first cannelure in the bottom of first segment borehole wall foundation ditch, is used to hold the vertical reserved steel bar 6 in lower end of first segment borehole wall reinforcing bar;
Three) colligation hat beam steel and first segment borehole wall reinforcing bar, said first segment borehole wall reinforcing bar is provided with the vertical reserved steel bar 6 in the lower end of stretching into first cannelure;
Four) inner side template of being preced with the beam 1 and the first segment borehole wall is installed; Build the concrete of the hat beam 1 and the first segment borehole wall, make the hat beam 1 and the first segment borehole wall form an integral body;
Five) treat that the first segment borehole wall reaches design strength after; Earth excavation; Form the foundation ditch of the second joint borehole wall, and form second cannelure, be used to hold the vertical reserved steel bar 6 in lower end of the second joint borehole wall reinforcing bar in the position of corresponding the 3rd joint borehole wall in bottom of the second joint borehole wall foundation ditch;
Six) the colligation second joint borehole wall reinforcing bar links together the lower end vertical reserved steel bar 6 of the vertical reinforcement upper end in the second joint borehole wall reinforcing bar with first segment borehole wall reinforcing bar; The said second joint borehole wall reinforcing bar is provided with the vertical reserved steel bar 6 in the lower end of going deep into second cannelure;
Seven) inner side template of the installation second joint borehole wall is built the second joint borehole wall;
Eight) repeating step five)～seven), until the construction of accomplishing whole boreholes wall;
Nine) construction of completion well inner concrete structure.
In the present embodiment, backfill medium coarse sand 5 in said first cannelure and in said second cannelure with the plastic tape parcel, is used to protect the vertical reserved steel bar in lower end with vertical reserved steel bar bottom, the lower end of the borehole wall.The vertical reinforcement of the vertical reinforcement of first segment borehole wall reinforcing bar and the second joint borehole wall reinforcing bar all adopts the rolling straight thread reinforcing bar, and adjacent two joint borehole wall vertical reinforcements up and down connect with straight screw sleeve on same cross section.Be provided with water-swellable adhesive tape 3 in first segment borehole wall bottom.When the second joint borehole wall, 2 inner side template are installed, width is set is 0.3m, highly build mouthfuls 4, be used to build second and save the borehole wall for 0.6m concrete annular.Install water-swellable adhesive tape 3 at the constuction joint place additional and retain the dual water seepage-proof tech of false bracket, can reduce difficulty of construction, accelerating construction progress is guaranteed construction quality.
Although combine accompanying drawing that the preferred embodiments of the present invention are described above; But the present invention is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (2)
1. a pebble ground cyclone well reversed construction method is characterized in that, may further comprise the steps:
One) measurement and positioning is confirmed the position of cyclone well center, the borehole wall and Guan Liang;
Two) earth excavation forms the foundation ditch of the first segment borehole wall and Guan Liang, and the position of saving the borehole wall in the bottom corresponding second of first segment borehole wall foundation ditch forms first cannelure, is used to hold the vertical reserved steel bar in lower end of first segment borehole wall reinforcing bar;
Three) colligation hat beam steel and first segment borehole wall reinforcing bar, said first segment borehole wall reinforcing bar is provided with the vertical reserved steel bar in the lower end of stretching into first cannelure;
Four) inner side template of the installation Guan Liang and the first segment borehole wall; Build the concrete of the Guan Liang and the first segment borehole wall, make the Guan Liang and the first segment borehole wall form an integral body;
Five) treat that the first segment borehole wall reaches design strength after; Earth excavation; Form the foundation ditch of the second joint borehole wall, and form second cannelure, be used to hold the vertical reserved steel bar in lower end of the second joint borehole wall reinforcing bar in the position of corresponding the 3rd joint borehole wall in bottom of the second joint borehole wall foundation ditch;
Six) the colligation second joint borehole wall reinforcing bar links together the lower end vertical reserved steel bar of the vertical reinforcement upper end in the second joint borehole wall reinforcing bar with first segment borehole wall reinforcing bar; The said second joint borehole wall reinforcing bar is provided with the vertical reserved steel bar in the lower end of stretching into second cannelure;
Seven) inner side template of the installation second joint borehole wall is built the second joint borehole wall;
Eight) repeating step five)～seven), until the construction of accomplishing whole boreholes wall;
Nine) construction of completion well inner concrete structure.
2. pebble ground cyclone well reversed construction method according to claim 1; It is characterized in that; Backfill medium coarse sand in said first cannelure and in said second cannelure; The vertical reinforcement of the vertical reinforcement of first segment borehole wall reinforcing bar and the second joint borehole wall reinforcing bar all adopts the rolling straight thread reinforcing bar, and adjacent two joint borehole wall vertical reinforcements up and down connect with straight screw sleeve on same cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102750728A CN102767187A (en) | 2012-08-03 | 2012-08-03 | Reverse construction method for pebble foundation swirling well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102750728A CN102767187A (en) | 2012-08-03 | 2012-08-03 | Reverse construction method for pebble foundation swirling well |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628487A (en) * | 2013-11-28 | 2014-03-12 | 中冶天工集团有限公司 | Circular deep foundation pit retaining wall reverse construction method |
| CN108867835A (en) * | 2018-08-06 | 2018-11-23 | 中国二十冶集团有限公司 | A kind of pond contrary sequence method in restricted clearance |
| CN109403354A (en) * | 2018-11-27 | 2019-03-01 | 武汉钢铁集团鄂城钢铁有限责任公司 | A kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support |
| CN110512611A (en) * | 2019-08-30 | 2019-11-29 | 中国二十二冶集团有限公司 | A kind of deep basal pit borehole wall is against operation construction method |
| CN113026816A (en) * | 2021-03-24 | 2021-06-25 | 山东建筑大学 | Underpinning reverse-acting open caisson supporting structure for grouting reinforced soil body and construction method |
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| KR100533609B1 (en) * | 2005-09-02 | 2005-12-06 | 주식회사 유신건축종합건축사사무소 | Structure of drained well panel using foundation |
| CN101372872A (en) * | 2008-10-20 | 2009-02-25 | 中冶实久建设有限公司 | Method for implementing hot rolling swirl pool constructional engineering by top-down method |
| CN102296631A (en) * | 2011-05-31 | 2011-12-28 | 天津二十冶建设有限公司 | Top-down construction method of cyclone well |
| CN102409683A (en) * | 2011-08-12 | 2012-04-11 | 天津二十冶建设有限公司 | Semi-inverse construction method of cyclone well |
-
2012
- 2012-08-03 CN CN2012102750728A patent/CN102767187A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100533609B1 (en) * | 2005-09-02 | 2005-12-06 | 주식회사 유신건축종합건축사사무소 | Structure of drained well panel using foundation |
| CN101372872A (en) * | 2008-10-20 | 2009-02-25 | 中冶实久建设有限公司 | Method for implementing hot rolling swirl pool constructional engineering by top-down method |
| CN102296631A (en) * | 2011-05-31 | 2011-12-28 | 天津二十冶建设有限公司 | Top-down construction method of cyclone well |
| CN102409683A (en) * | 2011-08-12 | 2012-04-11 | 天津二十冶建设有限公司 | Semi-inverse construction method of cyclone well |
Non-Patent Citations (1)
| Title |
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| 孙继刚等: "戈壁卵石地质条件下旋流井逆作法和大开挖方案比较", 《施工技术》, vol. 41, 30 June 2012 (2012-06-30), pages 85 - 88 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628487A (en) * | 2013-11-28 | 2014-03-12 | 中冶天工集团有限公司 | Circular deep foundation pit retaining wall reverse construction method |
| CN103628487B (en) * | 2013-11-28 | 2016-05-18 | 中冶天工集团有限公司 | Circular deep foundation ditch retaining wall reversed construction method |
| CN108867835A (en) * | 2018-08-06 | 2018-11-23 | 中国二十冶集团有限公司 | A kind of pond contrary sequence method in restricted clearance |
| CN109403354A (en) * | 2018-11-27 | 2019-03-01 | 武汉钢铁集团鄂城钢铁有限责任公司 | A kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support |
| CN110512611A (en) * | 2019-08-30 | 2019-11-29 | 中国二十二冶集团有限公司 | A kind of deep basal pit borehole wall is against operation construction method |
| CN113026816A (en) * | 2021-03-24 | 2021-06-25 | 山东建筑大学 | Underpinning reverse-acting open caisson supporting structure for grouting reinforced soil body and construction method |
| CN113026816B (en) * | 2021-03-24 | 2023-10-24 | 山东建筑大学 | Underpinning reverse-acting open caisson supporting structure for grouting reinforcement soil body and construction method |
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Application publication date: 20121107 |