CN110409378B - Non-water-stop maintenance method for large channel - Google Patents
Non-water-stop maintenance method for large channel Download PDFInfo
- Publication number
- CN110409378B CN110409378B CN201910823570.3A CN201910823570A CN110409378B CN 110409378 B CN110409378 B CN 110409378B CN 201910823570 A CN201910823570 A CN 201910823570A CN 110409378 B CN110409378 B CN 110409378B
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- water
- bin
- channel
- overhaul
- maintenance
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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
- E02B5/02—Making or lining canals
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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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- 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
- E02B5/082—Closures
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a non-water-stop maintenance method for a large channel, which comprises the following steps: firstly, manufacturing a maintenance bin, which comprises a longitudinal steel beam extending from a channel side slope to the bottom of a channel, wherein a door-shaped frame is connected onto the longitudinal steel beam, a rubber gasket is arranged on a base on the outer side of the door-shaped frame, a water retaining steel plate is welded on the inner sides of the longitudinal steel beam and the door-shaped frame, a water-stopping film bag is arranged at the bottom of the water retaining steel plate, the maintenance bin is hoisted to a to-be-maintained area of the channel, the top opening of the maintenance bin is positioned above the water level of the channel, water is filled into the water-stopping film bag, a maintenance worker takes out water in the bin, enters the cabin for maintenance, fills the water into the maintenance bin, drains the water-stopping film bag, lifts the maintenance bin, and. The method is safe and reliable, can meet the actual engineering condition of the long and large channel, avoids various influences caused by water cut-off, and improves economic benefits and social benefits.
Description
Technical Field
The invention relates to the technical field of channel maintenance, in particular to a maintenance method without water cut for a large channel.
Background
With the rapid development of diversion works, more and more large channels are bearing important water delivery tasks. The concrete panels of the channel can be damaged in different degrees by long-time scouring of water flow, and need to be overhauled. The current universal channel maintenance method needs to cut off water from the full section of the channel when being implemented, however, once the water supply is cut off, huge social influence and economic influence are often caused to the large channel engineering, and obviously, the current channel maintenance method is not suitable for the large channel engineering. Therefore, how to overhaul a large channel without stopping water supply becomes a technical problem which needs to be solved urgently at present.
Disclosure of Invention
In order to solve the problems, the invention provides a non-stop water overhauling method for a large channel, which can adopt the following technical scheme:
the invention relates to a non-stop water overhauling method for a large channel, which comprises the following steps:
firstly, manufacturing an overhaul bin according to the section form and size of a channel, wherein a steel frame of the overhaul bin comprises a longitudinal steel beam extending from a channel side slope to the bottom of the channel, the longitudinal steel beam is sequentially connected with a plurality of door-shaped frames, a base with a rubber gasket at the bottom is arranged on the outer side of each door-shaped frame, water retaining steel plates are welded on the inner sides of the longitudinal steel beam and the door-shaped frames, and a water-stopping film bag connected with a water filling mechanism is arranged on the contact surface of each water retaining steel plate and the channel lining;
secondly, hoisting the overhaul bin to a channel to-be-overhauled area through hoisting equipment, and enabling a top opening of the overhaul bin to be located above the water level of the channel;
thirdly, filling water into the water stop film bag to enable the bottom of the overhaul bin and the canal lining to form a sealed water stop structure;
fourthly, pumping water in the overhaul bin to be dry by using a submersible pump, and simultaneously additionally arranging balancing weights on the left side and the right side of the overhaul bin;
fifthly, under the condition that the maintenance bin is stable and water does not enter, the maintenance personnel enter the maintenance bin to complete maintenance work and return to the shore;
sixthly, filling water into the overhaul bin, dismantling the balancing weight, draining the water stop film bag, and hoisting the overhaul bin to finish the overhaul work of the overhaul region;
and seventhly, overhauling other areas to be overhauled according to the methods in the second step to the sixth step until all overhauling work is completed.
The tail end of the longitudinal steel beam is stopped at the midline of the bottom of the channel.
And an inclined strut is welded between the base and the door-shaped frame.
And a lifting ring is welded on the steel frame of the overhaul bin.
The overhaul bin is of a split structure connected through bolts.
The maintenance bin is simple in structure, easy to manufacture and low in cost, and can reduce maintenance cost, the maintenance bin is only required to be hoisted and placed in a channel to-be-maintained area, the water-stopping membrane bag is filled with water through the water pump to seal the maintenance bin and the channel, and then water stored in the maintenance bin is drained to enable the to-be-maintained area to be in a waterless environment, so that the channel is maintained without stopping water; the method is safe and reliable, can meet the actual engineering condition of the large and large channel, avoids influence on various aspects caused by water cut-off, and improves economic benefit and social benefit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
3 fig. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 in 3 fig. 3 1 3. 3
Fig. 3 is a schematic perspective view of the inspection chamber of fig. 1.
Detailed Description
The invention relates to a non-stop water maintenance method for a large channel, which needs to use a maintenance bin as shown in figures 1-3 and consists of a steel frame and a water retaining steel plate 1 welded on the inner side of the steel frame. The steel frame comprises a plurality of gate-shaped frames 2 which are sequentially arranged from the channel side slope to the channel bottom, and the gate-shaped frames 2 are connected with a plurality of longitudinal steel beams 3 in a welding mode. In order to strengthen the structural stability, a diagonal brace 5 is welded between each door-shaped frame 2 and the epitaxial base 4 on two sides of the door-shaped frame. The water retaining steel plate 1 is a steel plate with the thickness of 20mm, and other steel components are all made of I-shaped steel. In order to meet the construction space requirement of personnel for overhauling and maintaining in the overhauling bin, the height of the cabin is at least 2 m; the length and the width of the overhaul bin are set according to the size of the overhaul region. Generally, the end of vertical girder steel 3 extends to horizontal canal bottom center department, when will examining and repairing the storehouse and place left and right sides slope respectively, can form the comprehensive cover to the canal bottom, only makes an examination and repair storehouse, overhauls the place position in storehouse through the change, can accomplish the maintenance to the full channel, has effectively reduced cost of maintenance. When the size of the overhaul bin is larger, a split structure convenient for transportation can be adopted (the overhaul bin consists of four parts in figure 3). Specifically, the water-retaining steel plate 1 at the splicing position of the overhaul bin is folded outwards to form a reinforcing rib, and the reinforcing rib is provided with a connecting hole and is spliced through a bolt during use.
The steel frame of the overhaul bin is welded with the hoisting ring, so that the hoisting equipment Z can be conveniently placed in the channel to-be-overhauled area. In order to form a water-free environment, the top opening of the overhaul bin is positioned above the water level of the channel. In addition, a water-stopping membrane bag 6 is bonded on the contact surface of the water-stopping steel plate 1 and the canal lining, the water-stopping membrane bag 6 is made of high-strength elastic materials (such as steel fiber rubber composite materials or high-strength composite rubber) and is connected with a water filling mechanism, and the water filling mechanism is usually a commercially available water pump. The water-stop film bag 6 can be tightly contacted with the canal lining after being filled with water, thereby achieving the effect of sealing and stopping water. Furthermore, a rubber gasket 7 is adhered to the base 4 of the door-shaped frame 2, so that the friction force between the steel frame and the canal lining can be increased, the hydrodynamic thrust can be resisted, and the tipping can be prevented. The steel frame of the maintenance bin can be hung with a proper counterweight to enhance the stability of the maintenance bin in the flow passage channel.
The invention relates to a non-stop water overhauling method for a large channel, which comprises the following steps:
firstly, manufacturing an overhaul bin according to the form and the size of a channel section;
secondly, selecting a wheel type truck crane or a crawler crane to hoist the maintenance bin to a to-be-maintained area of the channel according to the actual situation of the channel, wherein the top opening of the maintenance bin is positioned above the water level of the channel, and other parts are positioned below the water surface, so that the bottom of each side surface of the maintenance bin is in full contact with the water passing surface of the channel;
thirdly, after the condition that the overhaul bin completely covers the area to be overhauled is confirmed, a water pump is used for filling water into the water stop film bag, and the water stop film bag after being filled with water can be completely contacted with the canal lining to form a sealed water stop structure; at the moment, the water pump is stopped, the water filling valve is closed, the water filling of the water stop film bag is stopped, and the water stop film bag is ensured not to leak water;
fourthly, pumping water in the overhaul bin to be dry by using a submersible pump, and meanwhile, additionally arranging balancing weights on the left side and the right side of the overhaul bin until the inside of the overhaul bin is anhydrous and the overhaul bin is integrally stabilized in an overflowing channel;
fifthly, under the condition that the maintenance bin is stable and water does not enter, arranging a ladder stand on the channel side slope, enabling a maintainer to enter the maintenance bin along the ladder stand, meanwhile, putting a maintenance tool and materials into the maintenance bin along the slope, completing channel maintenance work by the maintainer, withdrawing the bank edge along the ladder stand, and conveying the maintenance tool and the materials out of the maintenance bin to ensure that no foreign matter exists in the maintenance bin;
sixthly, filling water into the overhaul bin, dismantling the balancing weight, draining the water stop film bag, and hoisting the overhaul bin to finish the overhaul work of the overhaul region;
and seventhly, overhauling other areas to be overhauled according to the methods in the second step to the sixth step until all overhauling work is completed.
Claims (5)
1. A non-water-stop maintenance method for a large channel is characterized in that: the method comprises the following steps:
firstly, manufacturing an overhaul bin according to the section form and size of a channel, wherein a steel frame of the overhaul bin comprises a longitudinal steel beam extending from a channel side slope to the bottom of the channel, the longitudinal steel beam is sequentially connected with a plurality of door-shaped frames, a base with a rubber gasket at the bottom is arranged on the outer side of each door-shaped frame, water retaining steel plates are welded on the inner sides of the longitudinal steel beam and the door-shaped frames, and a water-stopping film bag connected with a water filling mechanism is arranged on the contact surface of each water retaining steel plate and the channel lining;
secondly, hoisting the overhaul bin to a channel to-be-overhauled area through hoisting equipment, and enabling a top opening of the overhaul bin to be located above the water level of the channel;
thirdly, filling water into the water stop film bag to enable the bottom of the overhaul bin and the canal lining to form a sealed water stop structure;
fourthly, pumping water in the overhaul bin to be dry by using a submersible pump, and simultaneously additionally arranging balancing weights on the left side and the right side of the overhaul bin;
fifthly, under the condition that the maintenance bin is stable and water does not enter, the maintenance personnel enter the maintenance bin to complete maintenance work and return to the shore;
sixthly, filling water into the overhaul bin, dismantling the balancing weight, draining the water stop film bag, and hoisting the overhaul bin to finish the overhaul work of the overhaul region;
and seventhly, repeating the second step to the sixth step, and overhauling other areas to be overhauled until all overhauling work is finished.
2. The non-stop water overhaul method for the large channel according to claim 1, wherein the method comprises the following steps: the tail end of the longitudinal steel beam is stopped at the midline of the bottom of the channel.
3. The non-stop water overhaul method for the large channel according to claim 1, wherein the method comprises the following steps: and an inclined strut is welded between the base and the door-shaped frame.
4. The non-stop water overhaul method for the large channel according to claim 1, wherein the method comprises the following steps: and a lifting ring is welded on the steel frame of the overhaul bin.
5. The non-stop water overhaul method for the large channel according to claim 1, wherein the method comprises the following steps: the overhaul bin is of a split structure connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910823570.3A CN110409378B (en) | 2019-09-02 | 2019-09-02 | Non-water-stop maintenance method for large channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910823570.3A CN110409378B (en) | 2019-09-02 | 2019-09-02 | Non-water-stop maintenance method for large channel |
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| CN110409378A CN110409378A (en) | 2019-11-05 |
| CN110409378B true CN110409378B (en) | 2021-02-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111287203B (en) * | 2020-02-23 | 2021-09-14 | 中国电建集团华东勘测设计研究院有限公司 | Box type water filling cofferdam structure and mounting and dismounting construction method |
| CN111456048B (en) * | 2020-04-18 | 2021-04-20 | 中电建十一局工程有限公司 | Underwater operation construction method for channel defect treatment |
| CN114319513A (en) * | 2021-12-23 | 2022-04-12 | 重庆市排水有限公司 | Non-water-cut-off maintenance device for deep water pump house |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3629452B2 (en) * | 2001-08-24 | 2005-03-16 | 前田設備工業株式会社 | Water intake equipment |
| CN101892632B (en) * | 2009-05-19 | 2012-05-30 | 上海市基础工程有限公司 | Construction method of structural system of river under no-cutoff working condition |
| CN105040645B (en) * | 2015-06-09 | 2017-03-29 | 贾永奕 | A kind of teleblem dash method for canal lining repair works under water |
| CN106337424B (en) * | 2016-10-20 | 2018-06-15 | 长江勘测规划设计研究有限责任公司 | Cofferdam semi-wrapped style foundation pit and method under the conditions of water delivery are not interrupted in canal lining reparation |
| CN206143787U (en) * | 2016-10-20 | 2017-05-03 | 长江勘测规划设计研究有限责任公司 | Cofferdam island formula foundation ditch under uninterrupted water delivery condition of canal lining restoration |
| CN108425370A (en) * | 2018-05-17 | 2018-08-21 | 北京翔鲲水务建设有限公司 | Combined type cofferdam and its construction method |
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