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Underwater mould bag concrete construction process
CN1303973A
China
- Other languages
Chinese - Inventor
徐彬 邓树飞 夏青 陆晔 张其坤 - Current Assignee
- No3 Branch Co Oceaneering General Co Jiangsu Prov
Worldwide applications
1999
CN
Application CN 99124276 events
1999-12-17
2001-07-18
2004-05-12
Application granted
2004-05-12
2019-12-17
Anticipated expiration
Status
Expired - Fee Related
Description
translated from
The present invention is a kind of underwater mould bag concrete slideway method construction technology.
Mould bag concrete is used for many years abroad already as river, a kind of rivers and lakes sea wall bank slop protection material, and China is at sea wall bank protection also many places application.Use has for many years proved that the protection effect of mould bag concrete is quite obvious.In recent years, the bank protection situation of great rivers such as the Changjiang river, Song Hua River is more and more sternly completed, and particularly 98 years extraodinary floods cause the embankment many places of rivers such as the Changjiang river, Song Hua River to collapse, and has caused very big loss for national wealth and people's life.History repeats itself in order not allow, and except strengthening every comprehensive regulation, strengthens the river dike construction and be imminent, so the measure of more effective mould bag concrete bank protection has been introduced into the slope protection works of river dike.
Mould bag concrete is to weave pouch with geotextiles, inner filling concrete then, a kind of hydraulic structure that forms, it is mainly used in easily washing away the bank protection of the embankment of section, significantly advantage is that it tightly contacts with domatic, can adapt to the change of side slope very naturally smooth-goingly and self is the protective slope structure of a complete and continuous, along with the exploitation and the development of synthetic materialss such as geotextiles, the application of mould bag concrete also can be more and more widely, and is more and more important.Traditional job practices is: put the smooth-going side slope of nature on bank slope or riverbed in order, constructor waterborne then, land cooperates the diver to lay the mould bag on the side slope under water, inserting the mould bag with conduit or pump line under the diver cooperates again irritates in the mouth, concrete enters in the mould bag by conduit or pump line, forms mould bag concrete.The filling of concrete along with the continuous rising of concrete, is moved or dismounting conduit or pump line from low to high, and is land up to watering.There are many defectives in above job practices, in advance the mould bag of Pu Sheing surge or the acting on of the flow velocity of water under, be easy to displacement, overturn even wash out, be difficult to fix; Conduit or pump line are difficult to broadcast and be fixed on the mould bag under water and irritate in the mouth, particularly having under the darker situation of flow velocity and water, water when concrete enters the mould bag by conduit or pump line first in conduit or the pump line can't be discharged the mould bag in moment, add conduit or pump line and move frequently under water, thereby the quality of concrete is difficult to guarantee; The full plumpness of concrete in the mould bag can only be touched survey by the diver, and there is limitation in quality examination; In addition, the engineering quantity of underwater operation is very big, and single scope of operation work efficiency and construction speed are very limited.
In order to overcome above defective, guarantee the construction quality of underwater mould bag concrete, the present invention proposes a kind of construction technology of new underwater mould bag concrete, promptly adopt the main body of slideway as job practices, make the subaqueous construction of underwater mould bag concrete become filling waterborne, the whole laying of gliding, guarantee its concrete quality and accurately in place, and significantly reduce the underwater operation amount, improve work efficiency, accelerate scope of operation progress.
The enforcement of this construction technology is such:
At first, according to the width of monolithic mould bag concrete, weight and the depth of water situation behind the unit length filling concrete, (width of truss slideway can be the width of monolithic mould bag concrete to processing and fabricating truss slideway, it also can be the injustice degree of polylith mould bag concrete, this will decide according to concrete deliverability and the overweight ability of working ship, and the length of truss slideway should be taken off the stalk performance parameter according to the depth of water, working ship and be determined).Truss slideway and working ship front end dumpling are connect, the truss slideway can be rotated by easy on and off under the effect of gin-pole truck, regulate its gradient freely so that spread the side slope of mould bag concrete along connecing at need.Meanwhile, arrange on the working ship concrete supply system and pump line is connected on the truss slideway.Mould bag concrete by land section lay filling good after, directly empty mould bag is spread to the truss slideway, and on working ship, is established the rolling device.Concrete pump on the working ship is irritated filling concrete in the mouth by the mould bag of pump line on the truss slideway, and stirring mould bag, the interior concrete of mould bag is evenly spread out, after reaching design thickness, upwards move to another and irritate a mouthful continuation filling, when treating the concrete filling near the working ship deck, working ship moves as straight line under the guiding of survey crew and underwater diver by land backward, simultaneously slowly transferring truss slideway front end contacts slightly with side slope, and put rolling device on the working ship slowly, the mould bag concrete on the truss slideway is slowly slipped in the water, according to diver's inspection guiding, adjust the working ship position, mould bag concrete slowly is laid on the design attitude smooth-goingly.The above perfusion concrete that continues of the truss slideway water surface, above each step of working ship coordinated manipulation is all laid exactly up to whole piece mould bag concrete and to be finished.
The present invention compares with traditional construction technology and has the following advantages: the concrete in the mould bag pours into filling on the slideway more than the water surface good, need not consider that concrete is built measure under water, can fully guarantee its quality, and in 60 meters of the depth of waters, water flow velocity can both be constructed less than 1.0 meter per seconds; Do not exist and lay fixing empty mould bag process under water; Can guarantee that mould bag concrete is accurately in place; Mould bag concrete can make concrete tenesmus in the bag when the slideway slide down, guarantee the full full filling degree of concrete in the mould bag; It is in place that the diver is inspection situation, guiding under water, significantly reduced the Underwater Engineering amount; Improve work efficiency greatly, accelerated the construction speed of the single scope of operation.
Below in conjunction with accompanying drawing construction technology of the present invention is further set forth:
Fig. 1 is the structural representation of a kind of underwater mould bag concrete construction process of the present invention
1, levee crown 2, irritate land mould bag concrete 3, spread underwater mould bag concrete 4, riverbed bank protection 5, irritate wait to spread mould bag concrete 6, truss slideway 7, irritate mouthfuls 8, wait to irritate mould bag 9, gin pole 10, pump line 11, mould bag rolling device 12, concrete pump 13, hanging must 14, working ship 15, hoist engine
From accompanying drawing 1 as can be seen, a kind of underwater mould bag concrete construction process device therefor under the present invention is by working ship 14, concrete pump 12, pump line 10, gin pole 9, truss slideway 6 and hoist engine 15 etc. are partly formed, concrete pumping hole and gin pole 9 are fixed on the working ship 14, adopt articulated form to be connected between truss slideway 6 rear ends and the working ship 14, the front end of truss slideway 6 should be designed to irritate tubular, so that truss slideway 6 under water side slope move up and down with the downslide of mould bag concrete in place, the middle part of truss slideway 6 is hung palpus 13 and is hung on the gin pole 9, like this, truss slideway 6 can pass through gin pole 9, hoist engine 15 must slide by 13 easy on and off with hanging; Working ship 14 is provided with a mould bag rolling device 11.
In work progress, at first will wait to irritate near mould bag 8 is routed to the water surface downwards along levee crown, wait to irritate in the mould bag 8 and pour into concrete to what spread by concrete pump 12 and pump line 10, form and irritated land mould bag concrete 2, then the truss slideway 6 on the working ship 14 is put down, make the below of its front end near the land mould bag concrete 2 of irritating of bank protection, lay along truss slideway 6 then and wait to irritate mould bag 8, irritate in the mould bag 8 by filling mouth 7 the treating on truss slideway 6 on the pump line 10 and to pour into concrete, and stirring mould bag, the interior concrete of mould bag is evenly spread out, reach design thickness, and upwards move to another and irritate and mouthful to continue a filling, form to have irritated and wait to spread mould bag concrete 5, make working ship 14 by land under the guiding of survey crew and underwater diver then, move as straight line lentamente to the middle of the river, truss slideway 6 is moved down along bank protection, open mould bag rolling device 11 simultaneously, make to irritate and wait to spread mould bag concrete 5 and glide and be laid on the riverbed bank protection 4 that to reinforce along truss slideway 6.Because mould bag concrete is in that the downslide process has certain time of staying while irritating, for initial setting time of the quality concrete that guarantees concrete should be controlled at more than 6 hours.The above perfusion concrete that continues of the last water surface, above each step of working ship 14 coordinated manipulations is all laid exactly up to whole mould bag and to be finished.
Claims (3)
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Claims (3)
Hide Dependent
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1, a kind of construction technology of underwater mould bag concrete, employing is laid along bank protection and is waited to irritate the mould bag, then to waiting to irritate concrete perfusion concrete in the mould bag, it is characterized in that near the water surface riverbed bank protection (4) is directly laid waits to irritate mould bag (8), then by concrete pump (12) and pump line (10) to waiting to irritate concrete perfusion concrete in the mould bag (8), put down truss slideway (6) then, and the approaching riverbed bank protection (4) of having irritated land mould bag concrete (2) lower end of the front end that makes truss slideway (6), wait to irritate mould bag (8) along truss slideway (6) laying, and to waiting to irritate concrete perfusion concrete in the mould bag (8), form to have irritated and wait to spread mould bag concrete (5), working ship (14) is moved as straight line lentamente to the middle of the river, make truss slideway (6) along the river the bed bank protection (4) to lower slider, simultaneously slowly open mould bag rolling device (11), make filling on the truss slideway (6) wait to spread mould bag concrete (5) and glide and be laid on the riverbed bank protection (4) along truss slideway (6).
2, the used equipment of the construction technology of a kind of underwater mould bag concrete according to claim 1, form by working ship (14), the concrete pump (12), concrete pipe (10) and the truss slideway parts such as (6) that are fixed on the working ship (14), working ship (14) is provided with gin pole (9) and hoist engine (15), it is characterized in that: adopt articulated form to connect between the rear end of truss slideway (6) and the working ship, front end is for irritating tubular, middle hung must (13) to be lifted on take off on the stalk (9).
3, the construction technology equipment of a kind of underwater mould bag concrete according to claim 2 is characterized in that: working ship (14) is provided with a mould bag rolling device (11).