CN105951890A - Application method of concrete engineering cavity mold airbag - Google Patents

Abstract

The invention relates to an application method of a concrete engineering cavity mold airbag. The airbag includes a hollow airbag body, and is semi-cylindrical; an airbag groove is formed in the middle part of the airbag; fixed points are arranged on two sides of the airbag groove; a valve is arranged at the upper end of the airbag; a sealed bottom is arranged at the lower end of the airbag; reinforcing fiber wires are mingled in the wall of the airbag; and projection points or longitudinal and transverse stripes are arranged on the arc outer surface of the airbag. The airbag is matched with a skeleton to form a cavity mold arranged on a first-stage concrete section; air pressure is set in the airbag; second-stage concrete is cast layer by layer; after primary solidification of the concrete, the air pressure in the airbag is released; the cavity mold is lifted out to form a semicircular cavity in a second-stage concrete section; molten asphalt is injected in the cavity to achieve a water stop effect; and the cavity mold can be recycled.

Description

A kind of using method of concrete works swaging die air bag

Technical field

The present invention relates to a kind of underground/submerged structure water-tight device, particularly to a kind of concrete works swaging die air bag Using method.

Background technology

In existing xoncrete structure, the such as underground such as checkdam, cistern, subway, culvert, sluice, tunnel, under water In engineering, due to can not continuous placing or the deformation due to settlement of foundation (earthquake), or the coagulation caused due to the change of temperature The reason such as expand with heat and contract with cold of soil component, the most deliberately leaves movement joint, construction joint pouring, and these gaps antiseep to be taked is arranged Executing, prevent external water or subsoil water from leaking in structure space, present usual way is, at fist stage concrete and second phase coagulation Concrete pit is set between soil, in groove, sets maltha and copper sheet or rubber water-proof sheet, but, this method needs precast concrete in advance Groove, in order to make concrete pit can combine closely with second stage concrete, needs 3 faces peripheral to concrete pit to carry out dabbing process, this Sample will extend the duration and increase artificial, simultaneously because the most every segment length of concrete pit (highly) only has 50-100cm, deformation Gap to be connected and composed by multiple concrete pits, therefore can produce a plurality of transverse slot, and multiple concrete pit is irregular Deformation, can cause the race of postorder perfusion maltha to emit phenomenon, and be difficult to clean up；And use number of patent application 2014100489253 With channel-section steel replace concrete pit technology, although expense and reduction of erection time can be saved than former construction method, but due to groove In steel dam body to be deposited in, it is not possible to recycling, still causing waste, being therefore badly in need of one can be at second stage concrete section Precast the equipment putting the die cavity holding Colophonium.

Summary of the invention

In order to solve the problems referred to above, the present invention provides the using method of a kind of concrete works swaging die air bag, Ke Yi Second stage concrete section preset go out a semicircle die cavity, in die cavity, pour into Colophonium can play sealing effect, and with The swaging die of this air bag takes out and can repeatedly use after using, and uses the vertical water sealing structure of this technology can meet multiple Ground condition/stratum differential settlement or the changing of the relative positions, telescopic displacement etc., can save Master Cost and reduction of erection time.

For achieving the above object, the present invention provides following technical scheme:

A kind of concrete works swaging die air bag, including hollow gasbag body, it is characterised in that:

Described air bag is semi-cylindrical, and the middle part of its semi-cylindrical plane is provided with air bag groove, described along its length Air bag groove both sides are longitudinally spaced is provided with fixing point；

Described air bag upper end is provided with valve cock, and lower end sets the Packed end；

Reinforcing fiber silk it is mingled with in the cyst wall of described air bag；

In order to make Colophonium more preferably can be distributed with projection in air bag circular arc external surface the adhesive of concrete-type intracavity, Projection can be round point shape, or in the vertical or horizontal glazing bar protruding surface, can form concave point or recessed after the demoulding in die cavity Groove, to increase the cohesive force of Colophonium.

Described air bag groove walls, air bag planar wall and air bag two side wall thickness is more than air bag antetheca, and two side is forward Wall circular arc is the most thinning.

The manufacture method of described concrete works swaging die air bag, including following technique: first make semicircle air bag Mould, arranges reinforcing fiber silk in mould, with castable rubber molding, the demoulding, high frequency welding bottom surface, lower end and upper surface Valve cock i.e. obtains air bag.

The invention also discloses the using method of above-mentioned concrete works swaging die air bag, comprise the steps:

1) assembling of swaging die: air bag groove is directed at skeleton groove, is arranged on bottom air bag on skeleton base, is positioned at gas The fixing point of capsule backward plane is equipped with to be assembled integrally in the fixing hole that skeleton is corresponding and i.e. forms swaging die；

2) setting of swaging die: after fist stage concrete solidification, the groove of skeleton is stuck on the sealing piece of protrusion, at skeleton Both sides concrete cross section on bituminous felt is set；

3) air bag pressurization: add compressed air, air bag from the valve cock being arranged on air bag top in the air bag set Form certain air pressure；

4) second stage concrete pours: after setting air bag pressure and template, second stage concrete pours according to highl stratification, often Secondary every layer of about 50cm, waits lower floor's initial set to pour last layer again after having certain degree of hardness, until it reaches the height of needs；

5) die cavity is formed: after second stage concrete initial set, releases air bag internal gas pressure, arranges suspension hook in the lifting hole(eyelet) of skeleton, Hang out swaging die, form semicircle die cavity at second stage concrete section part；

6) asphalt reperfusion: fill molten asphalt in semicircle die cavity, cool down；

7) when arranging multiple movement joint, repeat the above steps 1-6, Colophonium does once perfusion or irrigates for several times；Hang out Swaging die is cleared up in time, is maintained, and stores, in order to recycling.

Beneficial effects of the present invention

Compared with prior art, the beneficial effect comprise that

1. use the die cavity preset mode of this air bag so that one, second stage concrete pour conveniently, section is neat；

2. hanging out second stage concrete after swaging die use i.e. can reuse, can economize on resources minimizing waste；

3. can solve the permanent seam in underground, the Underwater Engineering such as checkdam, cistern, subway, culvert, sluice, tunnel Leakage problems；

4. compare with conventional construction method, because it is not required to concrete soil box, it is possible to reduce needed for concrete soil box Manually, the expense such as machinery, template；

The most again because being not required to reserved channel-section steel in inside, save metal material consumption；

6. use this method construction the working procedure on critical circuits in the past, become non-key circuit operation, save Duration.Create the biggest economic benefit and social benefit.

7. the coagulation that the technology of the present invention can solve multiple ground condition/stratum differential settlement or the change due to temperature causes The deformation joint seepage problem that the reason such as expand with heat and contract with cold of soil component causes；Can also prevent because of breaking that the natural disasters such as earthquake cause The leakage problems that the face interface changing of the relative positions, deformation cause.

Accompanying drawing explanation

Fig. 1 is the plan structure schematic diagram of air bag of the present invention, wherein visible air bag groove and be positioned at the fixing of plane both sides Point；

Fig. 2 is the semi-cylindrical air bag projecting surface perspective view of air bag of the present invention, it is seen that pneumatophore is distributed convex Rise；

Fig. 3 is the semi-cylindrical air bag flat and stereo structural representation of air bag of the present invention, it is seen that air bag groove and being distributed in The fixing point of plane both sides；

Fig. 4 is the projecting surface perspective view forming swaging die after air bag and the skeleton of the present invention assembles, Qi Zhongke See that skeleton top exceeds air bag top certain distance, typically exceed 20-40cm, to facilitate lifting；

Fig. 5 is the another side perspective view of Fig. 4, wherein the visible fixing point of air bag plane and consolidating of skeleton plane Determine the groove in the middle part of hole cooperation, air bag and the groove fit in the middle part of skeleton is tightly formed one, to ensure do not fall out and cause Deformation.

Fig. 6 is the air bag of the present invention and skeleton assemble after cross-sectional plan view structural representation, wherein the consolidating of visible air bag plane Fixed point coordinates with the fixing hole of skeleton plane, the groove in the middle part of air bag and the groove fit in the middle part of skeleton.

Fig. 7 is the perspective view that the air bag of the present invention is arranged on fist stage concrete section part together with skeleton, its The sealing piece of middle protrusion is arranged in the groove of skeleton, and skeleton is higher than the sealing piece certain altitude of concrete cross section, and air bag is with disconnected Face is contour or slightly above section.

Fig. 8 is the plan structure schematic diagram that the air bag of the present invention and skeleton are arranged on a phase and second stage concrete section part, The sealing piece wherein protruded is arranged in the groove of skeleton.

After Fig. 9 is the air bag of the present invention and the skeleton demoulding hangs out, at the semicircle die cavity that second stage concrete section part is preset Inside filling the plan structure schematic diagram after Colophonium, wherein sealing piece half is positioned in fist stage concrete, and the half of protrusion is positioned at type In the Colophonium of intracavity.

Sequence number in figure: 1. air bag plane, 2. air bag groove, 3. fixing point, 4. valve cock, 5. protruding, 6. antetheca, 7. side Wall, 8. skeleton, 9. groove, 10. lifting hole(eyelet), 11 fixing holes, 12 fist stage concretes, 13. sealing pieces, 14. bituminous felts, 15. 2 Phase concrete, 16. Colophoniumes.

Detailed description of the invention

The present invention will be further described with embodiment below in conjunction with the accompanying drawings.

Embodiment 1, with reference to accompanying drawing: a kind of concrete works swaging die air bag, including hollow gasbag body, described air bag is Semi-cylindrical, the middle part of its semi-cylindrical air bag plane 1 is provided with air bag groove 2 along its length, and air bag upper end is provided with valve cock 4, lower end sets the Packed end.

Air bag assembles fixing and prevents to deform in use, the dual-side of described semi-cylindrical air bag plane 1 for convenience Portion keeps at a certain distance away along its length and is provided with fixing point 3, air bag groove 2 and fixing point 3 and the groove 9 of skeleton 8 and fixing hole 11 are correspondingly arranged, and no-float is assembled into swaging die.

The demoulding and reach some strength for convenience, air bag to have certain elasticity and to keep adding certain air pressure constant Shape, described air bag is castable rubber, accompanies reinforcing fiber silk in length and breadth or steel wire inside it.

In order to make Colophonium 16 concrete-type intracavity adhesive more preferably, projection can be distributed with in air bag circular arc external surface 5, protruding 5 can be round point shape, or in the vertical or horizontal glazing bar protruding surface, can be formed in die cavity after the demoulding concave point or Groove, to increase the cohesive force of Colophonium 16.

In order to prevent air bag to deform, described air bag groove 2 wall, air bag plane 1 wall and air bag two side 7 wall thickness is more than gas Capsule antetheca 6, and two side 7 gradually forward wall 6 circular arc is thinning, at general antetheca 6 circular arc, wall thickness is the 1/2 of two side 7 thickness.

The present embodiment also discloses the manufacture method of above-mentioned concrete works swaging die air bag, including following technique: first First making semicircle balloon mold, arrange reinforcing fiber silk in mould, with castable rubber molding, the demoulding, under high frequency welding The valve cock 4 of face, bottom and upper surface i.e. obtains air bag.

The present embodiment also discloses the using method of above-mentioned concrete works swaging die air bag, comprises the steps:

1) assembling of swaging die: air bag groove 2 is directed at skeleton groove 9, is arranged on bottom air bag on skeleton 8 base, position Fixing point 3 in air bag backward plane is equipped with to be assembled integrally in the fixing hole 11 of skeleton 8 correspondence and i.e. forms swaging die；

2) setting of swaging die: after fist stage concrete 12 solidification, the groove 9 of skeleton 8 is stuck on the sealing piece 13 of protrusion, The both sides concrete cross section of skeleton 8 arranges bituminous felt 14；

3) air bag pressurization: add compressed air, air bag from the valve cock 4 being arranged on air bag top in the air bag set Form certain air pressure；

4) second stage concrete 15 pours: after setting air bag pressure and template, and second stage concrete 15 waters according to highl stratification Build, each every layer of about 50cm, wait lower floor's initial set to pour last layer again after having certain degree of hardness, until it reaches the height of needs；

5) die cavity is formed: after second stage concrete 15 initial set, releases air bag internal gas pressure, arranges in the lifting hole(eyelet) 10 of skeleton 8 Suspension hook, hangs out swaging die, forms semicircle die cavity at second stage concrete 15 section part；

6) asphalt reperfusion: fill melted No. 30 building asphalt 16 at semi-circular intracavity, when cooling down depending on job site temperature Between general 2-12 hour；

7) when arranging multiple movement joint, repeat the above steps 1-6, Colophonium 16 does once perfusion or irrigates for several times；Hang out Swaging die clear up in time, maintain, store, in order to recycling.

The air bag height 2.0M of the present invention, skeleton 8 height generally 2.5M, each frame film can pour 2.0M concrete walls Body, if body of wall is more than 2.0M, after form removal, improves 2.0M, repeats aforementioned construction method, until meeting body of wall height；This red copper is only Water sheet 13 and horizontal sealing piece are connected by Site Welding.

The present invention is not required to concrete soil box, can 20-30 days reduction of erection time compared with conventional construction method；Swaging die can To reuse；Can construct at the box dam retaining wall such as checkdam, cistern, can also be used for subway, culvert, sluice, tunnel etc. The construction application of underground, the various vertical sealings of concrete works movement joint such as under water, movement joint is the most non-leakage；Use this technology The deformation joint seepage water problems that stratum differential settlement causes, or the concrete structure caused because of the change of ambient temperature can be solved The deformation joint seepage problem caused of expanding with heat and contract with cold of part；The movement joint section caused because of natural disasters such as earthquakes can also be prevented to connect The leakage problems that the mouth deformation such as the changing of the relative positions, displacement etc. causes.

Claims (1)

1. the using method of a concrete works swaging die air bag, it is characterised in that comprise the steps:

1) assembling of swaging die: air bag groove is directed at skeleton groove, is arranged on bottom air bag on skeleton base, after being positioned at air bag The fixing point of facial plane is equipped with to be assembled integrally in the fixing hole that skeleton is corresponding and i.e. forms swaging die；

2) setting of swaging die: after fist stage concrete solidification, the groove of skeleton is stuck on the sealing piece of protrusion, at the two of skeleton On the concrete cross section of side, bituminous felt is set；

3) air bag pressurization: adding compressed air from the valve cock being arranged on air bag top in the air bag set, air bag is formed Certain air pressure；

4) second stage concrete pours: after setting air bag pressure and template, second stage concrete pours according to highl stratification, the most often Layer about 50cm, waits lower floor's initial set to pour last layer again after having certain degree of hardness, until it reaches the height of needs；

5) die cavity is formed: after second stage concrete initial set, releases air bag internal gas pressure, arranges suspension hook, hang out in the lifting hole(eyelet) of skeleton Swaging die, forms semicircle die cavity at second stage concrete section part；

6) asphalt reperfusion: fill molten asphalt in semicircle die cavity, cool down；

7) when arranging multiple movement joint, repeat the above steps 1)-6), Colophonium does once perfusion or irrigates for several times；The type hung out Chamber mould is cleared up in time, is maintained, and stores, in order to recycling.