CN111877381A - Construction method for reserved hole of simple open caisson - Google Patents
Construction method for reserved hole of simple open caisson Download PDFInfo
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- CN111877381A CN111877381A CN202010598589.5A CN202010598589A CN111877381A CN 111877381 A CN111877381 A CN 111877381A CN 202010598589 A CN202010598589 A CN 202010598589A CN 111877381 A CN111877381 A CN 111877381A
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- reserved hole
- open caisson
- steel plate
- construction method
- hole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
Abstract
The invention provides a construction method for a reserved hole opening of a simple open caisson, which comprises the following steps: arranging a reserved hole on the wall of a well of the cyclone tank open caisson, and plugging the reserved hole; installing the rotary flow tank open caisson to a preset installation position, and excavating a slag flushing ditch; and after the slag sluiceway is excavated, removing the plugging object of the reserved hole, and butting the slag sluiceway and the sunk well of the rotational flow tank together. The construction method has the advantages that the reserved hole is formed in the wall of the sunk well of the rotational flow tank, the hole is blocked by the steel plate, the steel plate for blocking is cut by gas welding after the sunk well is in place and the slag flushing ditch is excavated, and the slag flushing ditch is directly butted with the rotational flow tank.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a construction method for a reserved hole opening of a simple open caisson.
Background
The traditional butt joint construction method of the rotary flow tank open caisson and the sluiceway is the integral construction of the open caisson wall, after the sluiceway foundation is excavated, an outlet interface is dug on the wall of the well manually, and then the sluiceway is in butt joint with the open caisson.
Disclosure of Invention
In view of the above, the invention provides a construction method for a reserved hole of a simple open caisson, and aims to solve the problem of improving the construction efficiency when the open caisson of a cyclone tank is butted with a slag flushing ditch.
In one aspect, the invention provides a construction method for reserving a hole in a simple open caisson, which comprises the following steps:
arranging a reserved hole on the wall of a well of the cyclone tank open caisson, and plugging the reserved hole;
installing the rotary flow tank open caisson to a preset installation position, and excavating a slag flushing ditch;
and after the slag sluiceway is excavated, removing the plugging object of the reserved hole, and butting the slag sluiceway and the sunk well of the rotational flow tank together.
And further, when the cyclone tank open caisson is poured, the reserved hole is arranged at a preset position, and the size of the reserved hole is larger than the size of the interface of the slag sluiceway.
Furthermore, the distance between each outer side wall of the interface of the slag flushing ditch and the inner side wall of the reserved hole is more than or equal to 300 mm.
Further, the reserved hole is plugged through a steel plate, and the size of the steel plate is larger than that of the reserved hole, so that the steel plate covers the reserved hole.
Furthermore, the steel plate and the wall of the rotary flow tank open caisson are welded together in an anchoring mode.
Furthermore, the steel plate is provided with anchoring steel bars, and the steel plate is anchored and welded with the wall of the rotating flow tank open caisson through the anchoring steel bars.
Furthermore, the anchoring steel bars are arranged on the side wall of the steel plate along the circumferential direction of the steel plate, and the anchoring steel bars are arranged in two rows side by side; and the wall of the sinking well of the cyclone pool is provided with an anchoring hole, and the anchoring hole is opposite to the anchoring reinforcing steel bar.
Further, an annular plate is arranged on the wall of the well of the cyclone tank open caisson, and the reserved hole is sleeved with the annular plate through the steel plate, so that the reserved hole is plugged.
Furthermore, the annular plate is formed by welding and connecting a plurality of strip-shaped plates, and is connected with the wall of the rotary flow tank open caisson in an anchoring connection mode; the steel sheet is formed by welding a plurality of square boards each other.
Further, the thickness of the steel plate is 15mm-25 mm.
Compared with the prior art, the construction method has the beneficial effects that the reserved hole is formed in the well wall of the sunk well of the rotational flow pool, the hole is blocked by the steel plate, the steel plate for blocking is cut by gas welding after the sunk well is in place and the slag flushing ditch is excavated, and the slag flushing ditch is directly butted with the rotational flow pool. Specifically, the invention adopts the mode of reserving the hole in the well wall, saves the chiseling work on the well wall after the later-stage slag runner foundation is excavated, avoids the damage of the original structure of the well wall caused by chiseling concrete, is convenient and safe to construct, reduces the workload, saves the construction cost and accelerates the construction progress.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flow chart of a construction method of a reserved hole of a simple open caisson according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a reserved hole structure provided in an embodiment of the present invention;
FIG. 3 is a partial schematic view of a wall of a well of a spiral-flow basin caisson provided in an embodiment of the invention;
fig. 4 is a schematic view of installation of a steel plate according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the embodiment provides a construction method for a reserved hole of a simple open caisson, which includes the following steps:
step one, S101: arranging a reserved hole on the wall of the well of the cyclone tank open caisson, and plugging the reserved hole;
step two S102: installing the open caisson of the cyclone tank to a preset installation position, and excavating a slag flushing ditch;
step three, S103: and after the slag sluiceway is excavated, removing the plugging object of the reserved hole, and butting the slag sluiceway and the sunk well of the rotational flow tank together.
Specifically, when the sunk well of the rotational flow tank is poured, a reserved hole is formed in a preset position, and the size of the reserved hole is larger than the size of an interface of the slag flushing ditch.
Referring to fig. 2, specifically, the interface of the sluicing channel 2 is inserted into the reserved hole 1, and a distance between each outer side wall of the interface of the sluicing channel 2 and the inner side wall of the reserved hole 1 is greater than or equal to 300 mm.
Specifically, the reserved hole 1 is plugged by the steel plate 3, and the size of the steel plate 3 is larger than that of the reserved hole 1, so that the steel plate 3 covers the reserved hole 1.
It can be seen that the construction method of the invention is constructed by arranging the reserved hole 1 on the well wall 4 of the open caisson of the rotational flow tank, plugging the hole by adopting the steel plate 3, cutting the steel plate 3 for plugging by gas welding after the open caisson is in place and the slag flushing ditch 2 is excavated, and directly butting the slag flushing ditch 2 and the rotational flow tank. Specifically, the invention adopts the mode of reserving the hole 1 on the well wall 4, saves the chiseling work on the well wall 4 after the foundation of the slag sluiceway 2 is excavated in the later period, avoids the damage of the original structure of the well wall 4 caused by chiseling concrete, is convenient and safe to construct, reduces the workload, saves the construction cost and accelerates the construction progress.
Specifically, the steel plate 3 and the wall 4 of the cyclone tank open caisson are welded together in an anchoring mode.
Particularly, be provided with anchor reinforcing bar 5 on the steel sheet 3, steel sheet 3 is in the same place through anchor reinforcing bar 5 and the 4 anchor weldings of the wall of a well of whirl pond open caisson.
Referring to fig. 3, specifically, the anchoring bars 5 are disposed on the side wall of the steel plate 3 along the circumferential direction of the steel plate 3, and the anchoring bars 5 are disposed in two rows side by side; the wall 4 of the open caisson of the rotational flow tank is provided with an anchoring hole 7, and the anchoring hole 7 is opposite to the anchoring steel bar.
Referring to fig. 4, specifically, an annular plate 8 is arranged on the well wall 4 of the cyclone tank open caisson, and the reserved hole 1 is sleeved with the annular plate 8, and is connected with the annular plate 8 through a steel plate 3 so as to plug the reserved hole 1.
Specifically, the annular plate 8 is formed by welding and connecting a plurality of strip-shaped plates, and is connected with the well wall 4 of the cyclone tank open caisson in an anchoring connection mode; the steel plate 3 is formed by welding a plurality of square plates 9.
Particularly, when installing square board 9, set up a plurality of angle steel 10 that intersect and set up in reserving entrance to a cave 1, set up a fixed support through angle steel 10 to support shaped plate 9, make things convenient for shaped plate 9's installation.
Specifically, the thickness of the steel sheet 3 is 15mm to 25 mm.
In the embodiment, when the method is specifically implemented, the method that the reserved hole 1 is arranged on the well wall 4 is adopted at the interface of the sunk well of the cyclone tank and the slag flushing ditch 2, the sunk well normally sinks after the hole 1 is reserved on the well wall 4, the size of the reserved hole 1 is 300mm larger than that of each side of the interface of the slag flushing ditch 2, the reserved hole 1 adopts a steel plate 3 sealing measure, namely, the reserved hole 1 is sealed by adopting a 20mm thick steel plate 3 outside the well wall 4, the size of the steel plate 3 is 250mm wider than that of the reserved hole 1, and 12 steel bars are used for punching and plug welding for anchoring within the range of 200mm around the steel plate 3. The plugging steel plate 3 can be integrally processed and then hoisted in place, the steel plate 3 can be connected in a blocking mode and firmly welded with the steel plate 3 around the hole, and the steel plate 3 reinforces the steel plate 3 in the inner side direction of the wall 4 of the spiral flow pool after the hole is sealed. And after the open caisson is in place and the slag sluiceway 2 is excavated, dismantling the hole sealing steel plate 3, and butting the slag sluiceway 2 with the wall 4 of the rotational flow pool.
It can be seen that this embodiment is through taking the mode that sets up on the wall of a well 4 and reserving entrance to a cave 1, saves the chisel of later stage sluiceway 2 basis excavation back and removes work to the wall of a well 4, has avoided the concrete chisel to remove the destruction to the original structure of the wall of a well 4, and construction convenience is safe, has reduced work load, saves construction cost for the construction progress. And the method of the embodiment has strong universality and relatively flexible construction, and can be used for various deeper and larger open caisson constructions.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A construction method for reserving a hole in a simple open caisson is characterized by comprising the following steps:
arranging a reserved hole on the wall of a well of the cyclone tank open caisson, and plugging the reserved hole;
installing the rotary flow tank open caisson to a preset installation position, and excavating a slag flushing ditch;
and after the slag sluiceway is excavated, removing the plugging object of the reserved hole, and butting the slag sluiceway and the sunk well of the rotational flow tank together.
2. The construction method of the reserved hole of the simple open caisson according to claim 1,
and when the cyclone tank open caisson is poured, the reserved hole is arranged at a preset position, and the size of the reserved hole is larger than the size of the interface of the slag sluiceway.
3. The construction method of the reserved hole of the simple open caisson according to claim 2,
and the distance between each outer side wall of the interface of the slag sluiceway and the inner side wall of the reserved hole is more than or equal to 300 mm.
4. The construction method of the reserved hole of the simple open caisson according to claim 1,
the reserved hole is plugged through a steel plate, and the size of the steel plate is larger than that of the reserved hole, so that the steel plate covers the reserved hole.
5. The construction method of the reserved hole of the simple open caisson according to claim 4,
and the steel plate and the wall of the sinking well of the spiral flow tank are welded together in an anchoring mode.
6. The construction method of the reserved hole of the simple open caisson according to claim 4,
and the steel plate is provided with an anchoring reinforcing steel bar, and the steel plate is welded with the wall of the sinking well of the cyclone tank through the anchoring reinforcing steel bar in an anchoring manner.
7. The construction method of the reserved hole of the simple open caisson according to claim 6,
the anchoring steel bars are arranged on the side wall of the steel plate along the circumferential direction of the steel plate, and the anchoring steel bars are arranged in two rows side by side; and the wall of the sinking well of the cyclone pool is provided with an anchoring hole, and the anchoring hole is opposite to the anchoring reinforcing steel bar.
8. The construction method of the reserved hole of the simple open caisson according to claim 4,
and an annular plate is arranged on the wall of the well of the cyclone tank open caisson, and the reserved hole is sleeved by the annular plate, and is connected with the annular plate through the steel plate so as to block the reserved hole.
9. The construction method of the reserved hole of the simple open caisson according to claim 8,
the annular plate is formed by welding and connecting a plurality of strip-shaped plates and is connected with the wall of the rotary flow tank open caisson in an anchoring connection mode; the steel sheet is formed by welding a plurality of square boards each other.
10. The construction method for reserving a hole in a simple open caisson according to any one of claims 4 to 9, wherein the thickness of the steel plate is 15mm to 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598589.5A CN111877381A (en) | 2020-06-28 | 2020-06-28 | Construction method for reserved hole of simple open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598589.5A CN111877381A (en) | 2020-06-28 | 2020-06-28 | Construction method for reserved hole of simple open caisson |
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| CN111877381A true CN111877381A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010598589.5A Pending CN111877381A (en) | 2020-06-28 | 2020-06-28 | Construction method for reserved hole of simple open caisson |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023204U (en) * | 2011-02-17 | 2011-11-02 | 广东省冶金建筑设计研究院 | Water stop device for opening of circular open caisson |
| WO2012149670A1 (en) * | 2011-04-30 | 2012-11-08 | 安徽省高速公路控股集团有限公司 | Construction method for root-type foundation anchorage and bored, root-type cast in-situ pile with anchor bolts |
| CN204212181U (en) * | 2014-09-30 | 2015-03-18 | 上海市政工程设计研究总院（集团）有限公司 | A kind of plugging structure of open caisson reserved opening |
| CN108331000A (en) * | 2018-01-09 | 2018-07-27 | 中交烟台环保疏浚有限公司 | Caisson sinking construction method |
| CN109356183A (en) * | 2018-11-26 | 2019-02-19 | 武汉市市政建设集团有限公司 | A kind of open caisson reserved opening plugging structure and its construction method |
-
2020
- 2020-06-28 CN CN202010598589.5A patent/CN111877381A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023204U (en) * | 2011-02-17 | 2011-11-02 | 广东省冶金建筑设计研究院 | Water stop device for opening of circular open caisson |
| WO2012149670A1 (en) * | 2011-04-30 | 2012-11-08 | 安徽省高速公路控股集团有限公司 | Construction method for root-type foundation anchorage and bored, root-type cast in-situ pile with anchor bolts |
| CN204212181U (en) * | 2014-09-30 | 2015-03-18 | 上海市政工程设计研究总院（集团）有限公司 | A kind of plugging structure of open caisson reserved opening |
| CN108331000A (en) * | 2018-01-09 | 2018-07-27 | 中交烟台环保疏浚有限公司 | Caisson sinking construction method |
| CN109356183A (en) * | 2018-11-26 | 2019-02-19 | 武汉市市政建设集团有限公司 | A kind of open caisson reserved opening plugging structure and its construction method |
Non-Patent Citations (1)
| Title |
|---|
| 穆红卫: "外旋式旋流沉淀池与冲渣沟接头部位施工概述", 《冶金动力》 * |
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Application publication date: 20201103 |