CN102635369B - Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork - Google Patents

Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork Download PDF

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Publication number
CN102635369B
CN102635369B CN201210073486.2A CN201210073486A CN102635369B CN 102635369 B CN102635369 B CN 102635369B CN 201210073486 A CN201210073486 A CN 201210073486A CN 102635369 B CN102635369 B CN 102635369B
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CN
China
Prior art keywords
trestle
backform
concrete
inverted arch
girder
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Application number
CN201210073486.2A
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Chinese (zh)
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CN102635369A (en
Inventor
姜军
唐智华
刘章保
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中铁十二局集团有限公司
中铁十二局集团第一工程有限公司
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Priority to CN201210073486.2A priority Critical patent/CN102635369B/en
Publication of CN102635369A publication Critical patent/CN102635369A/en
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Publication of CN102635369B publication Critical patent/CN102635369B/en

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Abstract

The invention discloses a construction method for integrally pouring inverted arch concrete by matching a trestle with a top formwork, which belongs to the construction method for pouring inverted arches concrete of tunnels and relates to the manufacture and utilization of top formworks and trestles. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork includes the steps of (1) manufacturing a top formwork structure; (2) manufacturing a trestle structure; (3) preparing: measurement locating, formwork locating, concreting and trestle displacing and positioning. The construction method for integrally pouring inverted arch concrete by matching the trestle with the top formwork is easy, capable of guaranteeing the concrete to be shaped as designed during the inverted arch concrete pouring process, and effectively guaranteeing the tunnel to be normally open to traffic during the inverted arch construction process.

Description

Trestle coordinates backform monobloc cast inverted arch concrete construction method
Technical field
The invention belongs to tunnel invert concrete pouring construction method, relate to making and the use of backform and trestle, be specifically related to trestle and coordinate backform monobloc cast inverted arch concrete construction method.
Background technology
In tunnel invert concrete pouring construction process, because inverted arch concrete shape mostly is arc, and concrete slump is larger, if the concrete profile of the very difficult control of backform is not installed, does not meet designing requirement.Meanwhile, for guaranteeing to be normally open to traffic in inverted arch construction period hole, need to above inverted arch, set up inverted arch trestle.
So, in order to solve concrete in tunnel invert concrete pouring construction process, cannot, by the problem of design shape moulding, be necessary to design the special-purpose backform of a kind of tunnel invert concreting and trestle.
Summary of the invention
The present invention is the deficiency existing in order to solve above-mentioned prior art, and provides a kind of trestle to coordinate backform monobloc cast inverted arch concrete construction method.
The present invention is achieved by the following technical solutions:
Trestle coordinates backform monobloc cast inverted arch concrete construction method, comprises the following steps:
(1) making of backform structure: use i iron to be welded into backform main frame, between backform main frame and each template, by limit moulding oil top, bed die oil top, backform structure lifting oil top, be connected, backform tail end is provided with backform structure road wheel, between wherein said template, by rotating shaft, connect, described moulding oil top, limit, bed die oil top, backform structure lifting oil top are controlled by the flexible oily top of the backform control cabinet being arranged between backform main frame and template;
(2) making of trestle work structure: be welded into trestle girder with i iron, trestle girder top welding trestle steel plate, the two ends of trestle girder connect trestle ramp by the rotating shaft of trestle ramp, and trestle supporting leg is installed, and the end of trestle girder is installed liftable trestle road wheel;
(3) preparation: reach after initial set until the inverted arch concrete of having built, utilize oil top to pack up two side templates, then rise intermediate die plate, cleaning template is also brushed release agent;
Measurement and positioning: measure inverted arch center line and absolute altitude according to design, until inverted arch concrete reach design strength 90% time, fall backform structure road wheel, utilize plant equipment that formwork structure leading portion is sling, drag the position that formwork structure is forwarded to inverted arch to be built, lay railway sleepers or the lumps of wood, pack up backform structure road wheel;
Template Location: according to measurement result, intermediate die plate is dropped to design height, fix support screw, then that two side templates are in place, fix support screw;
Concreting: connect pumping concrete after pumping concrete pipeline, the order of pumping concrete is pressed into concrete from inverted arch both sides mouth again for the first pumping of concrete charging aperture from intermediate die plate is pressed into concrete, adopts the form vibrator being arranged in template to vibrate;
Trestle displacement and in place: remove lower two plate inverted arch hole quarrels, by quarrel body pile trestle front-end platform, mobile inverted arch trestle after a upper plate backfill concrete reaches design strength, ramp, trestle two ends is dug folding, utilize the plant equipment trestle rear end of slinging, put down trestle road wheel, the trestle girder front end of slinging, drag trestle girder and proceed to before quarrel body platform, lay railway sleepers or the lumps of wood, put down trestle girder front end, front side trestle supporting leg is dropped on sleeper, the trestle main beam rear end of slinging, puts down trestle girder after packing up road wheel, finally the rotation of ramp, two ends is set level.
The inventive method is simple, can guarantee that in tunnel invert concrete pouring construction process, concrete, by design shape moulding, effectively guarantees to be normally open to traffic in inverted arch construction period hole.
Accompanying drawing explanation
Fig. 1 is inverted arch concrete top die front view:
Fig. 2 is inverted arch concrete top die A-A sectional drawing:
Fig. 3 is inverted arch concrete top die B-B sectional drawing:
Fig. 4 is inverted arch trestle front view:
Fig. 5 is inverted arch trestle plan view:
In figure: 1-backform main frame, 2-limit moulding oil top, 3-bed die oil top, 4-backform structure road wheel, 5-pumping of concrete charging aperture, 6-template, 7-inverted arch center line, 8-trestle steel plate, 9-trestle ramp, the flexible oily top of 10-backform control cabinet, 11-form vibrator, 12-backform structure lifting oil top, 13-support screw, 14-sleeper or the lumps of wood, the rotating shaft of 15-trestle ramp, 16-trestle supporting leg, 17-trestle road wheel, 18-trestle girder.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment 1
A kind of trestle as shown in Fig. 1,2,3,4,5 coordinates backform monobloc cast inverted arch concrete construction method, comprises the following steps:
(1) making of backform structure: use i iron to be welded into backform main frame 1, between backform main frame and each template 6, by limit moulding oil top 2, bed die oil top 3, backform structure lifting oil top 12, be connected, backform tail end is provided with backform structure road wheel 4, between wherein said template 6, by rotating shaft, connect, described moulding oil top, limit 2, bed die oil top 3, backform structure lifting oil top 12 are controlled by the flexible oily top of the backform control cabinet 10 being arranged between backform main frame 1 and template 6;
(2) making of trestle work structure: be welded into trestle girder 18 with i iron, trestle girder 18 top welding trestle steel plates 8, the two ends of trestle girder 18 connect trestle ramp 9 by trestle ramp rotating shaft 15, and trestle supporting leg 16 is installed, the end of trestle girder 18 is installed liftable trestle road wheel 17;
(3) preparation: reach after initial set until the inverted arch concrete of having built, utilize oil top to pack up two side templates, then rise intermediate die plate, cleaning template is also brushed release agent;
Measurement and positioning: measure inverted arch center line 7 and absolute altitude according to design, until inverted arch concrete reach design strength 90% time, fall backform structure road wheel 4, utilize plant equipment that formwork structure leading portion is sling, drag the position that formwork structure is forwarded to inverted arch to be built, lay railway sleepers or the lumps of wood 14, pack up backform structure road wheel;
Template Location: according to measurement result, intermediate die plate is dropped to design height, fix support screw 13, then that two side templates are in place, fix support screw 13;
Concreting: connect pumping concrete after pumping concrete pipeline, the order of pumping concrete is pressed into concrete from inverted arch both sides mouth again for the first pumping of concrete charging aperture 5 from intermediate die plate is pressed into concrete, adopts the form vibrator 11 being arranged in template to vibrate;
Trestle displacement and in place: remove lower two plate inverted arch hole quarrels, by quarrel body pile trestle front-end platform, mobile inverted arch trestle after a upper plate backfill concrete reaches design strength, ramp, trestle two ends is dug folding, utilize the plant equipment trestle rear end of slinging, put down trestle road wheel, the trestle girder front end of slinging, dragging trestle girder proceeds to before quarrel body platform, lay railway sleepers or the lumps of wood 14, put down trestle girder front end, front side trestle supporting leg is dropped on sleeper, the trestle main beam rear end of slinging, after packing up road wheel, put down trestle girder, finally the rotation of ramp, two ends is set level.

Claims (1)

1. trestle coordinates a backform monobloc cast inverted arch concrete construction method, it is characterized in that comprising the following steps:
(1) making of backform structure: use i iron to be welded into backform main frame (1), between backform main frame and each template (6), by limit moulding oil top (2), bed die oil top (3), backform structure lifting oil top (12), be connected, backform tail end is provided with backform structure road wheel (4), wherein said template connects by rotating shaft between (6), and described moulding oil top, limit (2), bed die oil top (3), backform structure lifting oil top (12) are controlled by the flexible oily top control cabinet (10) of backform being arranged between backform main frame (1) and template (6);
(2) making of trestle work structure: be welded into trestle girder (18) with i iron, trestle girder (18) top welding trestle steel plate (8), the two ends of trestle girder (18) connect trestle ramp (9) by trestle ramp rotating shaft (15), and trestle supporting leg (16) is installed, the end of trestle girder (18) is installed liftable trestle road wheel (17);
(3) preparation: reach after initial set until the inverted arch concrete of having built, utilize oil top to pack up two side templates, then rise intermediate die plate, cleaning template is also brushed release agent;
Measurement and positioning: measure inverted arch center line (7) and absolute altitude according to design, until inverted arch concrete reach design strength 90% time, fall backform structure road wheel (4), utilize plant equipment that formwork structure leading portion is sling, drag the position that formwork structure is forwarded to inverted arch to be built, lay railway sleepers or the lumps of wood (14), pack up backform structure road wheel;
Template Location: according to measurement result, intermediate die plate is dropped to design height, fix support screw (13), then that two side templates are in place, fix support screw (13);
Concreting: connect pumping concrete after pumping concrete pipeline, the order of pumping concrete is pressed into concrete from inverted arch both sides mouth again for the first pumping of concrete charging aperture 5 from intermediate die plate is pressed into concrete, adopts the form vibrator (11) being arranged in template to vibrate;
Trestle displacement and in place: remove lower two plate inverted arch hole quarrels, by quarrel body pile trestle front-end platform, mobile inverted arch trestle after a upper plate backfill concrete reaches design strength, ramp, trestle two ends is dug folding, utilize the plant equipment trestle rear end of slinging, put down trestle road wheel, the trestle girder front end of slinging, dragging trestle girder proceeds to before quarrel body platform, lay railway sleepers or the lumps of wood (14), put down trestle girder front end, front side trestle supporting leg is dropped on sleeper, the trestle main beam rear end of slinging, after packing up road wheel, put down trestle girder, finally the rotation of ramp, two ends is set level.
CN201210073486.2A 2012-03-20 2012-03-20 Construction method for integrally pouring inverted arch concrete by matching trestle with top formwork CN102635369B (en)

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CN102635369B true CN102635369B (en) 2014-12-03

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102787850B (en) * 2012-08-29 2014-12-24 中铁二十三局集团第一工程有限公司 Inverted arch formwork for tunnel inverted arch construction
CN102996143B (en) * 2012-11-19 2015-07-08 中铁十二局集团有限公司 Construction method of fully pouring tunnel inverted arch
CN102937027B (en) * 2012-11-30 2016-09-07 中铁十九局集团第二工程有限公司 A kind of construction method of edge top arch and bottom arch of concrete pouring tunnel
CN103628412A (en) * 2013-11-27 2014-03-12 上海建工七建集团有限公司 Erection method of concrete supporting trestle bridge formwork
CN104594916B (en) * 2014-12-13 2017-10-13 云南建工水利水电建设有限公司 A kind of tunnel telescoping steel form automatic ash removing and brushing releasing agent device
CN105952469B (en) * 2016-07-07 2017-12-26 唐山市星斗路桥机械有限公司 Tunnel inverted arch Full-automatic high frequency vibrates evener
CN106979021B (en) * 2017-05-05 2019-01-11 中铁十二局集团有限公司 Large-section loess tunnel excavates and preliminary bracing quick closure cyclization method

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CN101967985A (en) * 2010-09-08 2011-02-09 中铁隧道集团三处有限公司 Self-propelled inverted arch template construction method
CN201908664U (en) * 2011-01-13 2011-07-27 成都天博机械有限公司 Movable trestle bridge invert form board trolley
CN201963311U (en) * 2011-01-14 2011-09-07 湖南五新机械有限公司 Automatic-marching type movable scaffoldbridge
CN102230383A (en) * 2011-06-14 2011-11-02 中交隧道工程局有限公司 All-hydraulic tunnel inverted arch trestle-type moving die frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101967985A (en) * 2010-09-08 2011-02-09 中铁隧道集团三处有限公司 Self-propelled inverted arch template construction method
CN201908664U (en) * 2011-01-13 2011-07-27 成都天博机械有限公司 Movable trestle bridge invert form board trolley
CN201963311U (en) * 2011-01-14 2011-09-07 湖南五新机械有限公司 Automatic-marching type movable scaffoldbridge
CN102230383A (en) * 2011-06-14 2011-11-02 中交隧道工程局有限公司 All-hydraulic tunnel inverted arch trestle-type moving die frame

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