CN112900367B - Temporary blocking method for full-water hidden culvert - Google Patents
Temporary blocking method for full-water hidden culvert Download PDFInfo
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- CN112900367B CN112900367B CN202110109016.6A CN202110109016A CN112900367B CN 112900367 B CN112900367 B CN 112900367B CN 202110109016 A CN202110109016 A CN 202110109016A CN 112900367 B CN112900367 B CN 112900367B
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- culvert
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- hidden culvert
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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Abstract
The invention relates to the technical field of dark culvert construction, in particular to a temporary blocking method for a full-water dark culvert. The method comprises the following steps: breaking the hidden culvert top plate at the junction; filling a water retaining dam at the upstream of the open channel; placing a steel bar net groove at one side of the hidden culvert breaking section, which is far away from the construction side, and building sandbags in the steel bar net groove; placing a steel plate on one side of the steel bar mesh groove; two corners of the lower opening of the steel plate are cut off to fit with the section of the hidden culvert; pumping the construction section and the upstream canal water to the downstream by a water pump; building a water retaining brick wall at the side of the hidden culvert breaking section close to the construction section, and placing a plastic hose at the lower part of the hidden culvert breaking section; after the performance of the water retaining brick wall meets the requirement, closing the water guide holes of the plastic pipes; constructing a hidden culvert construction section and a cover plate; after the construction of the hidden culvert construction section is completed, excavating an earth dam at the upstream, excavating brick walls and mud residues, and introducing water into the hidden channel; and (5) covering the cover plate by the breaking section, and processing the gap. The method can arrange a temporary structure in the original hidden culvert structure to play a role in isolating water flow, thereby ensuring the normal construction of the continuous building of the hidden canal. The method is mainly applied to temporary blocking of the hidden culvert.
Description
Technical Field
The invention relates to the technical field of dark culvert construction, in particular to a temporary blocking method for a full-water dark culvert.
Background
In the urbanization construction, in order to meet the requirements of environmental protection and safety, the original open channel is transformed into a hidden culvert structure. When the continuous construction of the full water and the hidden culvert is carried out, the upstream and downstream channels on two sides of the continuous construction section need to be plugged, a soil dam is generally arranged at an open channel to cut off water, but no good plugging method exists at the existing hidden channel. At present, the method of soil piling is commonly adopted for plugging, but the silting of the original hidden culvert is easy to cause, and the cleaning engineering quantity is large and the cost is high.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the temporary blocking method for the full-water hidden culvert, and the temporary structure can be arranged in the original hidden culvert structure to play a role in isolating water flow, so that the normal construction of the continuous building of the hidden canal is ensured.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a temporary blocking method for a full water and dark culvert comprises the following steps:
s1, removing a hidden culvert top plate at a joint, and removing stone slag and sludge in a culvert by using an excavator;
s2, filling a water retaining dam at the upstream of the open channel;
s3, placing a steel bar mesh groove at one side of the hidden culvert breaking section, which is far away from the construction side, building a sand bag prepared in advance in the steel bar mesh groove, and tamping by using a wooden stick while building;
s4, hanging a steel plate on one side of the steel bar mesh groove, inserting the lower part of the steel bar mesh groove into the steel bar bearing groove, and firmly welding the upper part of the steel bar mesh groove with the steel bar mesh groove; two corners of the lower opening of the steel plate are cut off to fit with the section of the hidden culvert;
s5, pumping water in the construction section and the upstream canal to the downstream by adopting a water pump, and observing the changes of the earth dam and the reinforcing steel bar net groove at any time;
s6, building a water retaining brick wall on one side of the hidden culvert breaking section close to the construction section, and making a water guide hole by using a security plastic hose at the lower part;
s7, closing the plastic water guide hole after the strength and the impermeability of the water retaining brick wall meet the requirements;
s8, constructing a hidden culvert construction section and a cover plate, wherein the thickness of the cover plate is the same as that of a hidden culvert top plate, the width direction is slightly smaller than the removal width, and the length direction is 20mm larger than the width of the hidden culvert;
s9, after the construction of the structure of the hidden culvert construction section is completed and the design strength is reached, excavating earth dams at the upstream, taking sand bags out of the excavation section in sequence, hanging iron plates and steel bar mesh grooves, excavating brick walls and mud residues by adopting an excavator, and introducing water into the hidden canal;
and S10, covering the reinforced concrete cover plate on the removing section, and processing the gap.
In the step S1, the hidden culvert structure mainly comprises a hidden culvert top plate, hidden culvert side walls, axillary corners, a hidden culvert bottom plate and a cushion layer; the width of the hidden culvert broken section is preferably 2.5-3 m, the whole top plate and the upper axillary corner are completely broken, the reinforcing steel bars are cut off, and the cut surfaces are leveled as much as possible.
In the step S2, the retaining dam is preferably filled with dense soil, the retaining dam is compacted by an excavator bucket while filling, and the filling height of the dam is 0.8-1 m greater than the elevation of the upstream water surface.
In the step S3, the steel bar net groove comprises a main framework, a side wall net, a bottom net, a hanging ring and a steel bar socket groove; the main framework of the steel bar mesh groove is formed by welding deformed steel bars with the diameter of more than or equal to 25 mm; two side wall nets and a bottom net are welded on the main framework by adopting deformed steel bars with the diameter of 18mm or 16 mm; the grid size is 150 x 150mm; four lifting rings made of round steel are symmetrically welded at the upper opening of the main framework; and a steel bar socket groove formed by bending steel bars is welded on one side of the steel bar mesh groove.
In the step S3, fine sand is filled in the sand bag to form a large half bag, one end of a hemp rope is tied to the opening, the sand bag is tightly tied as much as possible during filling, the sand bag is tamped layer by woodworkers, and the other side of Sha Masheng is tied to the top of the steel bar groove according to the descending sequence of the sand bag.
In the step S6, before the brick wall is built, the bottom of the hidden culvert is ensured to be free of sludge, then a row of bagged cement is laid as the bottom, and the plastic water guide holes are wrapped at the bottom to drain water; the brick wall is made of quick-hardening cement mixed with mortar, and sewage seeped out from the steel bar mesh groove is pumped out by a self-sucking pump in the wall building process.
In the step S7, a valve is arranged at the outlet of the plastic water guide hole, and the valve can be directly closed to cut off water flow.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a temporary plugging method for a full water and hidden culvert, which adopts three-stage plugging facilities and a dredging and replacing plugging method and can quickly and effectively achieve the plugging effect. The plugging method has the advantages of easily-obtained facility materials, easy processing, lower cost, simple construction process and stronger operability. The method overcomes the defect that the hidden culvert is easy to silt due to water interception of the earth dam, and the used materials can be cleaned one by one, so that the smoothness of the hidden culvert is ensured.
Drawings
FIG. 1 is a sectional view of a full-water dark culvert temporary plugging method according to the present invention;
FIG. 2 is a plan view of the present invention illustrating hidden culvert plugging;
FIG. 3 is a schematic view of a reinforcement grid according to the present invention;
FIG. 4 is a side view of a rebar grid groove of the present invention;
FIG. 5 is an elevation view of a steel plate according to the present invention;
in the figure: 1 is the hidden culvert, 11 is the hidden culvert roof, 12 is the hidden culvert side wall, 13 is the axillary angle, 14 is the hidden culvert bottom plate, 15 is the bed course, 2 is the hidden culvert abolished section, 3 is the hidden culvert construction section, 4 is the earth dam, 5 is reinforcing bar groove, 51 is the main frame, 52 is the lateral wall net, 53 is the end net, 54 is rings, 55 is reinforcing bar socket, 6 is the sand bag, 7 is the steel sheet, 8 is the brick wall, 9 is the plastic tubing water conservancy diversion hole.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, a method for temporarily blocking a full water and dark culvert comprises the following steps:
s1, removing a hidden culvert top plate 11 at a joint, and removing stone slag and sludge in a culvert by using an excavator;
s2, filling a water retaining dam 4 at the upstream of the open channel;
s3, breaking the side, far away from the construction, of the section 1 of the hidden culvert, placing a steel bar mesh groove 5, building a sand bag 6 prepared in advance in the steel bar mesh groove 5, and tamping by using a wooden stick while building;
s4, hanging a steel plate 7 on one side of the steel bar mesh groove 5, inserting the lower part of the steel bar mesh groove into the steel bar bearing slot 55, and firmly welding the upper part of the steel bar mesh groove 5; two corners of the lower opening of the steel plate 7 are cut off to fit with the section of the hidden culvert 1;
s5, pumping and draining the construction section and the upstream canal water to the downstream by adopting a water pump, and observing the changes of the earth dam 4 and the reinforcing steel bar net groove 5 at any time;
s6, building a water retaining brick wall 8 at one side of the hidden culvert breaking section 2 close to the construction section, and placing a plastic hose as a plastic pipe water guide hole 9 at the lower part;
s7, after the strength and the impermeability of the water retaining brick wall 8 meet the requirements, closing the water guide holes 9 of the plastic pipe;
s8, constructing a hidden culvert construction section 3 and a cover plate, wherein the thickness of the cover plate is the same as that of a hidden culvert top plate 11, the width direction of the cover plate is slightly smaller than the removal width, and the length direction of the cover plate is 20mm larger than that of a hidden culvert 1;
s9, after the structural construction of the hidden culvert construction section 3 is completed and the design strength is reached, excavating an earth dam 4 at the upstream, taking out a sand bag 6 from the excavation section in sequence, hanging an iron plate and a steel bar mesh groove 5, excavating brick walls 8 and sludge by adopting an excavator, and introducing water into the hidden canal;
and S10, covering the reinforced concrete cover plate on the removing section, and processing the gap.
Preferably, in the step S1, the structure of the culvert 1 mainly includes a culvert top plate 11, culvert side walls 12, axillary corners 13, a culvert bottom plate 14 and a cushion layer; the width of the hidden culvert breaking section 2 is preferably 2.5-3 m, the whole roof and the upper axillary corner 13 are completely broken, the reinforcing steel bars are cut off, and the cut surfaces are leveled as much as possible.
Preferably, in the step S2, the retaining dam 4 is preferably filled with dense soil, the soil should be compacted by a bucket of an excavator while filling, and the filling height of the dam 4 should be 0.8-1 m greater than the elevation of the upstream water surface.
Preferably, in step S3, the steel mesh trough 5 includes a main framework 51, a side wall mesh 52, a bottom mesh 53, a hanging ring 54 and a steel bar socket 55; the main framework 51 of the steel bar mesh groove 5 is formed by welding deformed steel bars with the diameter of more than or equal to 25 mm; the two side wall nets 52 and the bottom net 53 are welded on the main framework 51 by adopting deformed steel bars with the diameter of 18mm or 16 mm; the grid size is 150 x 150mm; four lifting rings 54 made of round steel are symmetrically welded on the upper opening of the main framework 51; and a steel bar bearing slot 55 formed by bending steel bars is welded at one side of the steel bar mesh slot 5.
Preferably, in the step S3, the sand bag 6 is filled with fine sand to a large half bag, one end of a hemp rope is tied, the fine sand is tightly tied as much as possible during filling, the fine sand is tamped layer by woodworker, and the fine sand is tied to the top of the steel bar groove on the other side of Sha Masheng according to the descending sequence of the sand bag 6.
Preferably, in the step S6, before the brick wall 8 is built, the bottom of the hidden culvert 1 is ensured to be free of sludge, then a row of bagged cement is paved as a bottom, and the bottommost part of the brick wall is wrapped by a plastic pipe water guide hole 9 for draining water; the brick wall 8 is made of rapid-hardening cement and mortar, and sewage seeped out from the steel bar mesh groove 5 is pumped out by a self-sucking pump in the wall building process.
Preferably, in step S7, a valve is installed at an outlet of the water guide hole 9 of the plastic pipe, and the valve can be directly closed to block water flow.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (6)
1. A full water and dark culvert temporary plugging method is characterized by comprising the following steps:
s1, removing a hidden culvert top plate at a joint, and removing stone slag and sludge in a culvert by using an excavator;
s2, filling a water retaining dam at the upstream of the open channel;
s3, placing a steel bar net groove on one side of the hidden culvert breaking section, which is far away from the construction side, building a sand bag prepared in advance in the steel bar net groove, and tamping the sand bag with a stick while building;
s4, hanging a steel plate on one side of the steel bar mesh groove, inserting the lower part of the steel bar mesh groove into the steel bar bearing groove, and firmly welding the upper part of the steel bar mesh groove with the steel bar mesh groove; two corners of the lower opening of the steel plate are cut off to fit with the section of the hidden culvert;
s5, pumping water in the construction section and the upstream canal to the downstream by adopting a water pump, and observing the changes of the earth dam and the reinforcing steel bar net groove at any time;
s6, building a water retaining brick wall on one side of the hidden culvert breaking section, which is close to the construction section, and placing a plastic hose as a plastic pipe water guide hole on the lower part of the hidden culvert breaking section;
s7, after the strength and the impermeability of the water retaining brick wall meet the requirements, closing the water guide holes of the plastic pipes;
s8, constructing a hidden culvert construction section and a cover plate, wherein the thickness of the cover plate is the same as that of a hidden culvert top plate, the width direction is slightly smaller than the removal width, and the length direction is 20mm larger than the width of the hidden culvert;
s9, after the construction of the structure of the hidden culvert construction section is completed and the design strength is reached, excavating earth dams at the upstream, taking sand bags out of the excavation section in sequence, hanging steel plates and reinforcing steel bar mesh grooves, excavating brick walls and mud residues by adopting an excavator, and introducing water into the hidden channel;
s10, covering a reinforced concrete cover plate on the breaking section, and processing a gap;
in the step S3, the steel bar net groove comprises a main framework, a side wall net, a bottom net, a hanging ring and a steel bar socket groove; the main framework of the steel bar mesh groove is formed by welding deformed steel bars; two side wall nets and a bottom net are welded on the main framework by adopting deformed steel bars, and four lifting rings made of round steel are symmetrically welded on the upper opening of the main framework; and a steel bar socket groove formed by bending steel bars is welded on one side of the steel bar mesh groove.
2. The full water dark culvert temporary plugging method according to claim 1, characterized by comprising the following steps: in the step S1, the hidden culvert structure mainly comprises a hidden culvert top plate, hidden culvert side walls, axillary corners, a hidden culvert bottom plate and a cushion layer; the width of the hidden culvert broken section is preferably 2.5-3 m, the whole top plate and the upper axillary corner are completely broken, the reinforcing steel bars are cut off, and the cut surfaces are leveled as much as possible.
3. The full water dark culvert temporary plugging method according to claim 1, characterized by comprising the following steps: in the step S2, the retaining dam is preferably filled with dense soil, the retaining dam is compacted by an excavator bucket while filling, and the filling height of the dam is larger than the upstream water surface.
4. The full water dark culvert temporary plugging method according to claim 1, characterized by comprising the following steps: in the step S3, fine sand is filled in the sand bag to form a large half bag, one end of a hemp rope is tied to the opening, the sand bag is tightly tied as much as possible during filling, the sand bag is tamped layer by woodworkers, and the other side of Sha Masheng is tied to the top of the steel bar groove according to the descending sequence of the sand bag.
5. The full water dark culvert temporary plugging method according to claim 1, characterized by comprising the following steps: in the step S6, before the brick wall is built, the bottom of the hidden culvert is ensured to be free of sludge, then a row of bagged cement is laid as the bottom, and the bottommost part of the brick wall is wrapped with a plastic pipe water guide hole for draining water; the brick wall is made of quick-hardening cement mixed with mortar, and sewage seeped out from the steel bar mesh groove is pumped out by a self-sucking pump in the wall building process.
6. The full water and dark culvert temporary plugging method according to claim 1, characterized by comprising the following steps: in the step S7, a valve is arranged at the outlet of the water guide hole of the plastic pipe, and the valve can be directly closed to cut off water flow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110109016.6A CN112900367B (en) | 2021-01-27 | 2021-01-27 | Temporary blocking method for full-water hidden culvert |
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| CN202110109016.6A CN112900367B (en) | 2021-01-27 | 2021-01-27 | Temporary blocking method for full-water hidden culvert |
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| CN112900367B true CN112900367B (en) | 2023-03-24 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207436096U (en) * | 2017-10-14 | 2018-06-01 | 武汉钟鑫市政建设工程有限公司 | A kind of not draining steel plate box for containing closure for existing second hand cases |
| CN212248298U (en) * | 2019-11-25 | 2020-12-29 | 中国电建集团华东勘测设计研究院有限公司 | Temporary water retaining structure capable of being rapidly detached for river channel hidden culvert |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472030A (en) * | 1968-02-16 | 1969-10-14 | Ray E Rieke | Anti-clogging entrance guard for culverts |
| JP5759841B2 (en) * | 2011-09-14 | 2015-08-05 | ゼニス羽田株式会社 | Seal for pipe rod |
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- 2021-01-27 CN CN202110109016.6A patent/CN112900367B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207436096U (en) * | 2017-10-14 | 2018-06-01 | 武汉钟鑫市政建设工程有限公司 | A kind of not draining steel plate box for containing closure for existing second hand cases |
| CN212248298U (en) * | 2019-11-25 | 2020-12-29 | 中国电建集团华东勘测设计研究院有限公司 | Temporary water retaining structure capable of being rapidly detached for river channel hidden culvert |
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