CN204299591U - Monoblock type mould bases is used in tunnel invert construction - Google Patents
Monoblock type mould bases is used in tunnel invert construction Download PDFInfo
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- CN204299591U CN204299591U CN201420768305.2U CN201420768305U CN204299591U CN 204299591 U CN204299591 U CN 204299591U CN 201420768305 U CN201420768305 U CN 201420768305U CN 204299591 U CN204299591 U CN 204299591U
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Abstract
The utility model discloses a kind of tunnel invert construction monoblock type mould bases, institute's construction inverted arch is divided into middle part arch section and two sidepiece arch sections, and this monoblock type mould bases comprises two respectively to the sidepiece mould bases that two sidepiece arch sections are constructed; Sidepiece mould bases comprises arc-shaped steel template, formwork-support and is positioned at front support and the detent mechanism of below on front side of arc-shaped steel template; Front support and detent mechanism comprise the inner support mechanism and outer support mechanism that lay respectively at down either side inside and outside arc-shaped steel template; Inner support mechanism comprise be supported in arc-shaped steel template inside bottom interior Steel bar rack and Duo Gen from the inside to the outside to the inner position reinforcing bar that arc-shaped steel template positions; Outer support mechanism comprises from outside to inside to the outer steel bar positioning frame that arc-shaped steel template positions.The utility model structure is simple, reasonable in design, dismounting and vertical easy and a vertical rear pattern plate can not offset, result of use is good, can not only accelerate the construction speed of tunnel invert, and the inverted arch construction quality of institute's construction molding is easy to ensure.
Description
Technical field
The utility model belongs to tunnel invert technical field of construction, especially relates to a kind of tunnel invert construction monoblock type mould bases.
Background technology
Inverted arch is the reverse domes being arranged on tunnel bottom for improving top supporting construction stress condition, and it is one of chief component of tunnel structure, and is the basis of tunnel structure.The strata pressure on top, tunnel effectively will be delivered to underground by tunnel side wall structure or by the load on road surface by inverted arch on the one hand, but also effectively resists the counter-force transmitted understratum, tunnel.It is overall that inverted arch and Tunnel Second Lining form tunnel, and increase the stability of tunnel structure.When nowadays tunnel invert being constructed, usual employing Combined formwork carries out pouring construction, because institute's construction tunnel inverted arch is reverse arch, there is formwork support arrangement during practice of construction and the problems such as difficulty, formwork required time consumption that is long, falsework support reinforcing bar is large, input construction cost is high, concreting is inconvenient, template easily offsets, construction quality not easily ensures are installed.Thus, need design that a kind of structure is simple, reasonable in design at present, dismounting and a vertical easy and tunnel invert construction monoblock type mould bases that vertical rear pattern plate can not offset, result of use is good, can not only accelerate the construction speed of tunnel invert, and the inverted arch construction quality of institute's construction molding is easy to ensure.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of tunnel invert construction monoblock type mould bases is provided, its structure is simple, reasonable in design, dismounting and vertical easy and a vertical rear pattern plate can not offset, result of use is good, can not only accelerate the construction speed of tunnel invert, and the inverted arch construction quality of institute's construction molding is easy to ensure.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of tunnel invert construction monoblock type mould bases, institute's construction inverted arch is divided into middle part arch section and two sidepieces laying respectively at the arch section left and right sides, middle part to encircle section along the transverse width direction in institute's construction tunnel hole, the structure of two described sidepiece arch sections identical and the two symmetrically lay, it is characterized in that: this monoblock type mould bases comprises two respectively to the sidepiece mould bases that two described sidepiece arch sections of constructed inverted arch are constructed, the structure of two described sidepiece mould bases identical and the two symmetrically lay, two described sidepiece mould bases are all laid along the longitudinal length direction in institute's construction tunnel hole, the upper surface that described sidepiece mould bases comprises counter-lateral quadrents arch section carry out molding construction arc-shaped steel template, to be positioned at above arc-shaped steel template and the formwork-support that arc-shaped steel template is supported and the front support being positioned at below on front side of arc-shaped steel template and detent mechanism, described arc-shaped steel template and formwork-support are fastenedly connected and are integrated, and the upper surface shape that shape of cross section and the sidepiece of described arc-shaped steel template encircle section is identical, described formwork-support comprises the upper fixed frame laid in level and is supported in side-lower in fixed framework and in vertically to the lower support framework laid, described lower support framework and fixed framework are all laid along the longitudinal length direction in institute's construction tunnel hole, fixed framework outside-supporting is in the outer upper of arc-shaped steel template, and described lower support frame supported is in the inside upper part of arc-shaped steel template, described lower support base of frame with outside fixed framework between be connected by multiple tracks first skewed horizontal load bar, be provided with the second skewed horizontal load bar that multiple tracks is reinforced arc-shaped steel template inside fixed framework and between arc-shaped steel template, described in the first skewed horizontal load bar described in multiple tracks and multiple tracks, the second skewed horizontal load bar is all laid from front to back along the longitudinal length direction in institute's construction tunnel hole, described front support and detent mechanism comprise the inner support mechanism and outer support mechanism that lay respectively at down either side inside and outside arc-shaped steel template, described inner support mechanism comprise be supported in arc-shaped steel template inside bottom interior Steel bar rack and Duo Gen from the inside to the outside to the inner position reinforcing bar that arc-shaped steel template positions, the bottom of described inner position reinforcing bar is fixed on bottom institute's construction tunnel hole or is weldingly fixed on described interior Steel bar rack, the upper end of described inner position reinforcing bar prop up withstand on arc-shaped steel template inside side walls on, described outer support mechanism comprises from outside to inside to the outer steel bar positioning frame that arc-shaped steel template positions, described outer steel bar positioning frame comprises the many lateral register reinforcing bars be supported between arc-shaped steel template and institute's construction tunnel hole sidewall, many described lateral register reinforcing bars are all laid along the width in institute's construction tunnel hole, and connected as one by multiple tracks first connecting reinforcement between many described lateral register reinforcing bars, lateral register reinforcing bar bottom described in every root is provided with many second lower support reinforcing bars supported, described second lower support reinforcing bar upper weld is fixed on supported lateral register reinforcing bar and its underpart and is fixed on bottom institute's construction tunnel hole.
Above-mentioned tunnel invert construction monoblock type mould bases, is characterized in that: described sidepiece mould bases also comprises the rear support and detent mechanism that are positioned at below on rear side of arc-shaped steel template, and the structure of described rear support and detent mechanism is identical with the structure of described front support and detent mechanism.
Above-mentioned tunnel invert construction monoblock type mould bases, it is characterized in that: fixed framework comprises upper longeron that twice are parallel laying and multiple tracks and is connected to lateral connection beam described in twice between upper longeron, upper longeron described in twice is respectively and is positioned at inner side rail above arc-shaped steel template outside and outer side rail and the two is laid in same level; Described lower support framework comprises lower longeron together immediately below inner side rail and multiple tracks and is connected to vertical supporting bar between inner side rail and lower longeron, described inner side rail, outer side rail and lower longeron are all laid along the longitudinal length direction in institute's construction tunnel hole, and vertical supporting bar described in multiple tracks is all laid on same vertical plane and its longitudinal length direction along institute's construction tunnel hole and lays from front to back; Lateral connection beam described in multiple tracks is all vertical runs with inner side rail and it is all laid in same level.
Above-mentioned tunnel invert construction monoblock type mould bases, it is characterized in that: described lateral connection beam, inner side rail, outer side rail, lower longeron and vertical supporting bar are shaped steel, described lateral connection beam with between inner side rail and outer side rail and vertical supporting bar be all fixedly connected with welding manner with between inner side rail with lower longeron.
Above-mentioned tunnel invert construction monoblock type mould bases, is characterized in that: described first skewed horizontal load bar is be connected to stringer bracing bar between outer side rail and lower longeron and it is shaped steel; Lateral connection beam described in multiple tracks, in evenly laying, is provided with described first skewed horizontal load bar together between lateral connection beam described in the adjacent twice in front and back, the first skewed horizontal load bar described in multiple tracks is all laid on same plane and its indention is laid.
Above-mentioned tunnel invert construction monoblock type mould bases, it is characterized in that: the quantity of described second skewed horizontal load bar is identical with the quantity of lateral connection beam, described second skewed horizontal load bar is together provided with below lateral connection beam described in per pass, described second skewed horizontal load bar is the template hound reinforced arc-shaped steel template and it is shaped steel, and the upper end of described template hound is fixed on inner side rail and its lower end and is fixed in arc-shaped steel template.
Above-mentioned tunnel invert construction monoblock type mould bases, it is characterized in that: described interior Steel bar rack comprises the support frame that is welded by many upper spacer bars and Duo Gen and is supported in the first lower support reinforcing bar bottom described support frame, and the top of many described first lower support reinforcing bars is all weldingly fixed on described first support frame and its underpart and is all fixed on bottom institute's construction tunnel hole.
Above-mentioned tunnel invert construction monoblock type mould bases, is characterized in that: described front support and detent mechanism also comprise the arc connecting reinforcement be connected between described inner support mechanism and described outer support mechanism.
Above-mentioned tunnel invert construction monoblock type mould bases, it is characterized in that: the quantity of described arc connecting reinforcement is one and it is positioned at below arc-shaped steel template, and the two ends of described arc connecting reinforcement are weldingly fixed on described interior Steel bar rack and described outer steel bar positioning frame respectively; The inner of many described lateral register reinforcing bars is all propped up and is withstood in arc-shaped steel template, connected by together upper connecting reinforcement between the inner of many described lateral register reinforcing bars, described upper connecting reinforcement lays along the longitudinal length direction in institute's construction tunnel hole and it is supported on below arc-shaped steel template.
Above-mentioned tunnel invert construction monoblock type mould bases, is characterized in that: described arc-shaped steel template and fixed framework, between described lower support framework and described first skewed horizontal load bar all with welding manner or all by connecting bolt be fixed and be connected; The side, front and back of fixed framework is provided with two lifting parts.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and input cost is low, and take up room little and lightweight, heavily about 6t is many simultaneously.
2, use easy and simple to handle and efficiency of construction is high, required workmen is few and labour intensity is low, can meet the inverted arch construction speed requirement of monthly 110m, saves personnel, accelerating construction progress.
3, the arc-shaped steel formwork structure adopted is simple, reasonable in design and processing and fabricating is easy, input cost is low, result of use is good, for Integral Steel template, be convenient to installation and removal, and can ensure that construction quality, the greatly face of institute's construction molding inverted arch are smooth and seam tight, form removal is simultaneously easy.
4, the mould bases bracing frame adopted is frame-type mould bases, the demand of support and hanging integrated formula steel form can not only be met, and effectively can reinforce arc-shaped steel template, move integrally easy simultaneously, have from heavy and light, good stability, be convenient to the advantages such as mobile, shared space is little simultaneously.
5, the front support adopted and detent mechanism and rear support and detent mechanism structure is simple, reasonable in design, input cost is lower and easy construction, result of use are good; while arc-shaped steel template in counter-lateral quadrents mould bases carries out firm support; easy, the quick bearing height to arc-shaped steel template of energy and Support Position adjust; and can guarantee that, in concrete pouring construction process, arc-shaped steel template can not offset.
6, use easy and simple to handle and result of use good, practical value is high; energy is easy, quick and high-quality completes tunnel invert work progress; and can guarantee that in concreting process, arc-shaped steel template does not offset; thus guarantee inverted arch pouring quality; can effective accelerating construction progress; and control construction cost, improve inverted arch construction quality, effectively increase economic efficiency.
In sum, the utility model structure is simple, reasonable in design, dismounting and vertical easy and a vertical rear pattern plate can not offset, result of use is good, can not only accelerate the construction speed of tunnel invert, and the inverted arch construction quality of institute's construction molding is easy to ensure.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
The structural representation of Fig. 1 is the utility model inverted arch of constructing.
Fig. 2 is the superstructure schematic diagram of the utility model sidepiece mould bases.
Fig. 3 is the side portion structure schematic diagram of the utility model sidepiece mould bases.
Fig. 4 is the holding state schematic diagram of the utility model sidepiece mould bases.
Fig. 4-1 is the partial enlarged drawing at A place in Fig. 4.
Fig. 4-2 is the partial enlarged drawing at B place in Fig. 4.
Description of reference numerals:
1-1-middle part arch section; 1-2-sidepiece arch section; 2-arc-shaped steel template;
3-formwork-support; 4-institute construction tunnel hole; 5-1-inner position reinforcing bar;
5-2-upper spacer bar; 5-3-the first lower support reinforcing bar; 5-4-lateral register reinforcing bar;
5-5-the second lower support reinforcing bar; 5-6-the first connecting reinforcement; 6-1-lateral connection beam;
6-2-inner side rail; 6-3-outer side rail; 7-1-lower longeron;
7-2-vertical supporting bar; 8-template hound; 9-stringer bracing bar;
10-arc connecting reinforcement; 11-upper connecting reinforcement; 12-lifting part;
13-the three skewed horizontal load bar; 14-hound; 15-secondary lining;
16-longitudinal stiffener; 17-arc stiffener.
Detailed description of the invention
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, institute's construction inverted arch is divided into middle part arch section 1-1 and two to lay respectively at the sidepiece arch section 1-2 of the arch section 1-1 left and right sides, middle part along the transverse width direction in institute's construction tunnel hole 4, the structure of two described sidepiece arch section 1-2 identical and the two symmetrically lay, this monoblock type mould bases comprises two respectively to the sidepiece mould bases that two described sidepiece arch section 1-2 of constructed inverted arch construct, the structure of two described sidepiece mould bases identical and the two symmetrically lay, two described sidepiece mould bases are all laid along the longitudinal length direction in institute's construction tunnel hole 4.The upper surface that described sidepiece mould bases comprises counter-lateral quadrents arch section 1-2 carry out molding construction arc-shaped steel template 2, to be positioned at above arc-shaped steel template 2 and the formwork-support 3 that arc-shaped steel template 2 is supported and the front support being positioned at below on front side of arc-shaped steel template 2 and detent mechanism, described arc-shaped steel template 2 and formwork-support 3 are fastenedly connected and are integrated, and the upper surface shape that shape of cross section and the sidepiece of described arc-shaped steel template 2 encircle section 1-2 is identical; Described formwork-support 3 comprises the upper fixed frame laid in level and is supported in side-lower in fixed framework and in vertically to the lower support framework laid, described lower support framework and fixed framework are all laid along the longitudinal length direction in institute's construction tunnel hole 4, fixed framework outside-supporting is in the outer upper of arc-shaped steel template 2, and described lower support frame supported is in the inside upper part of arc-shaped steel template 2; Described lower support base of frame with outside fixed framework between be connected by multiple tracks first skewed horizontal load bar, be provided with the second skewed horizontal load bar that multiple tracks is reinforced arc-shaped steel template 2 inside fixed framework and between arc-shaped steel template 2, described in the first skewed horizontal load bar described in multiple tracks and multiple tracks, the second skewed horizontal load bar is all laid from front to back along the longitudinal length direction in institute's construction tunnel hole 4; Described front support and detent mechanism comprise the inner support mechanism and outer support mechanism that lay respectively at down either side inside and outside arc-shaped steel template 2.Composition graphs 4-1 and Fig. 4-2, described inner support mechanism comprise be supported in arc-shaped steel template 2 inside bottom interior Steel bar rack and Duo Gen from the inside to the outside to the inner position reinforcing bar 5-1 that arc-shaped steel template 2 positions, the bottom of described inner position reinforcing bar 5-1 is fixed on bottom institute's construction tunnel hole 4 or is weldingly fixed on described interior Steel bar rack, the upper end of described inner position reinforcing bar 5-1 prop up withstand on arc-shaped steel template 2 inside side walls on.Described outer support mechanism comprises from outside to inside to the outer steel bar positioning frame that arc-shaped steel template 2 positions, described outer steel bar positioning frame comprises the many lateral register reinforcing bar 5-4 be supported between arc-shaped steel template 2 and institute's construction tunnel hole 4 sidewall, many described lateral register reinforcing bar 5-4 all lay along the width in institute's construction tunnel hole 4, and connected as one by multiple tracks first connecting reinforcement 5-6 between many described lateral register reinforcing bar 5-4, lateral register reinforcing bar 5-4 bottom described in every root is provided with many second lower support reinforcing bar 5-5 supported, described second lower support reinforcing bar 5-5 upper weld is fixed on supported lateral register reinforcing bar 5-4 and its underpart and is fixed on bottom institute's construction tunnel hole 4.
In the present embodiment, described sidepiece mould bases also comprises the rear support and detent mechanism that are positioned at below on rear side of arc-shaped steel template 2, and the structure of described rear support and detent mechanism is identical with the structure of described front support and detent mechanism.
Actually add man-hour, fixed framework comprises upper longeron that twice are parallel laying and multiple tracks and is connected to lateral connection beam 6-1 described in twice between upper longeron, and upper longeron described in twice is respectively and is positioned at inner side rail 6-2 above arc-shaped steel template 2 outside and outer side rail 6-3 and the two is laid in same level.Described lower support framework comprises lower longeron 7-1 together immediately below inner side rail 6-2 and multiple tracks and is connected to vertical supporting bar 7-2 between inner side rail 6-2 and lower longeron 7-1, described inner side rail 6-2, outer side rail 6-3 and lower longeron 7-1 all lay along the longitudinal length direction in institute's construction tunnel hole 4, and vertical supporting bar 7-2 described in multiple tracks is all laid on same vertical plane and its longitudinal length direction along institute's construction tunnel hole 4 and lays from front to back.Lateral connection beam 6-1 described in multiple tracks is all vertical runs with inner side rail 6-2 and it is all laid in same level.
In the present embodiment, described lateral connection beam 6-1, inner side rail 6-2, outer side rail 6-3, lower longeron 7-1 and vertical supporting bar 7-2 are shaped steel, described lateral connection beam 6-1 with between inner side rail 6-2 and outer side rail 6-3 and vertical supporting bar 7-2 be all fixedly connected with welding manner with between inner side rail 6-2 with lower longeron 7-1.
Further, described lateral connection beam 6-1, inner side rail 6-2, outer side rail 6-3, lower longeron 7-1 and vertical supporting bar 7-2 are I-steel.
The longitudinal length of described arc-shaped steel template 2 is less than the longitudinal length of arc-shaped steel template 2, and the longitudinal length of described arc-shaped steel template 2 is 11m ~ 13m, and the longitudinal length of described formwork-support 3 is 12m ~ 14m.
In the present embodiment, the longitudinal length of described arc-shaped steel template 2 is 12m, and the longitudinal length of described formwork-support 3 is 13m.
Actually add man-hour, can according to specific needs, the longitudinal length of arc-shaped steel template 2 and formwork-support 3 be adjusted accordingly.
Described first skewed horizontal load bar is be connected to stringer bracing bar 9 between outer side rail 6-3 and lower longeron 7-1 and it is shaped steel.Lateral connection beam 6-1 described in multiple tracks, in evenly laying, is provided with described first skewed horizontal load bar together between lateral connection beam 6-1 described in the adjacent twice in front and back, the first skewed horizontal load bar described in multiple tracks is all laid on same plane and its indention is laid.In the present embodiment, described stringer bracing bar 9 is channel-section steel.
Simultaneously, one hound 14 is provided with between the adjacent two described vertical supporting bar 7-2 in front and back, and described in many described vertical supporting bar 7-2 and multiple tracks, vertical supporting bar 7-2 is all laid on same vertical plane, and the upper and lower side of hound 14 described in per pass is separately fixed between inner side rail 6-2 and lower longeron 7-1.In the present embodiment, described hound 14 is angle steel.
In the present embodiment, the quantity of described second skewed horizontal load bar is identical with the quantity of lateral connection beam 6-1, described second skewed horizontal load bar is together provided with below lateral connection beam 6-1 described in per pass, described second skewed horizontal load bar is the template hound 8 reinforced arc-shaped steel template 2 and it is shaped steel, and the upper end of described template hound 8 is fixed on inner side rail 6-2 and its lower end and is fixed in arc-shaped steel template 2.
Further, described template hound 8 is angle steel.
During actual use, by template hound 8 described in multiple tracks, arc-shaped steel template 2 uniform force are passed to fixed framework and described lower support framework.
In addition, the lateral connection beam 6-1 being positioned at front side in lateral connection beam 6-1 described in multiple tracks is front end cross beam, and the lateral connection beam 6-1 being positioned at last side in lateral connection beam 6-1 described in multiple tracks is rear end floor beam, to be positioned on rear side of described front end cross beam and the lateral connection beam 6-1 be adjacent is front side crossbeam, to be positioned on front side of described rear end floor beam and the lateral connection beam 6-1 be adjacent is rear-side cross member, described front end cross beam and described front side crossbeam and between described rear end floor beam and described rear-side cross member, be provided with twice the 3rd skewed horizontal load bar 13, 3rd skewed horizontal load bar 13 described in twice is all laid in same level with lateral connection beam 6-1 described in multiple tracks.
Actually add man-hour, described arc-shaped steel template 2 and fixed framework, between described lower support framework and described first skewed horizontal load bar all with welding manner or all by connecting bolt be fixed and be connected.The side, front and back of fixed framework is provided with two lifting parts 12.In the present embodiment, described lifting part 12 is spliced by two I-steel sections and it is fixed on fixed framework by screw-thread steel.During actual use, by two described lifting parts 12, hanging device is facilitated to lift the utility model.
In the present embodiment, the length of described arc-shaped steel template 2 is 12m and its width is 2.2m, described arc-shaped steel template 2 adopts connecting bolt to be connected with between formwork-support 3, and by multiple tracks arcuately steel form 2 longitudinal length direction lay longitudinal stiffener 16 reinforce, described in multiple tracks, longitudinal stiffener 16 is in parallel laying, makes arc-shaped steel template 2 have enough rigidity like this.Meanwhile, described arc-shaped steel template 2 is provided with multiple tracks arc stiffener 17, the shape of multiple described arc stiffener 17 and transverse width direction of its all arcuately steel form 2 identical with the shape of cross section of arc-shaped steel template 2 is laid.
Described longitudinal stiffener 16 is by pin or be bolted in arc-shaped steel template 2, and thus arc-shaped steel template 2 is reinforced very easy, and it is easy to adjust to reinforce position.Meanwhile, 4 operation windows are reserved in described arc-shaped steel template 2 top and the bottom, facilitate concrete vibrating, avoid the generation voids and pits that leakage shakes, and ensure in concrete real outer beautiful.
In the present embodiment, described longitudinal stiffener 16 is channel-section steel.
During practice of construction, because the middle part arch section 1-1 arc radius of constructed inverted arch is large, the ratio of slope is milder, template can not be established, the method paved by Concrete in Natural is built from centre to both sides, the arc-shaped steel template 2 times of watering two described sidepiece mould bases to left and right along time, change and enter mould by the top of constructed inverted arch both sides, inverted arch concrete one-time-concreting is completed.Further, when concrete slump is 160mm ~ 200mm, the wide arc-shaped steel template 2 of 2.2m is set downwards from the construction joint between constructed inverted arch and the abutment wall of secondary lining 15, the concrete construction requirement of inverted arch can be met well.
In the present embodiment, described interior Steel bar rack comprises the support frame that is welded by many upper spacer bar 5-2 and Duo Gen and is supported in the first lower support reinforcing bar 5-3 bottom described support frame, and the top of many described first lower support reinforcing bar 5-3 is all weldingly fixed on described first support frame and its underpart and is all fixed on bottom institute's construction tunnel hole 4.
Meanwhile, described front support and detent mechanism also comprise the arc connecting reinforcement 10 be connected between described inner support mechanism and described outer support mechanism.
In the present embodiment, the quantity of described arc connecting reinforcement 10 is one and it is positioned at below arc-shaped steel template 2, and the two ends of described arc connecting reinforcement 10 are weldingly fixed on described interior Steel bar rack and described outer steel bar positioning frame respectively.The inner of many described lateral register reinforcing bar 5-4 is all propped up and is withstood in arc-shaped steel template 2, connected by together upper connecting reinforcement 11 between the inner of many described lateral register reinforcing bar 5-4, described upper connecting reinforcement 11 lays along the longitudinal length direction in institute's construction tunnel hole 4 and it is supported on below arc-shaped steel template 2.
In actual use procedure, two described sidepiece mould bases can accurately be located by described front support and detent mechanism and rear support and detent mechanism, and because inner support mechanism and outer support mechanism are Steel bar rack, not only easy construction, and it is fixing simple, firm, its bearing height adjustment is simultaneously easy, while firm support is carried out to the arc-shaped steel template 2 in described sidepiece mould bases, can be easy, the quick bearing height to arc-shaped steel template 2 and Support Position adjust, and can guarantee in concrete pouring construction process, described arc-shaped steel template 2 can not offset.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. monoblock type mould bases is used in a tunnel invert construction, institute's construction inverted arch is divided into middle part arch section (1-1) and two sidepieces laying respectively at arch section (1-1) left and right sides, middle part to encircle section (1-2) along the transverse width direction in institute's construction tunnel hole (4), the structure of two described sidepieces arch section (1-2) identical and the two symmetrically lay, it is characterized in that: this monoblock type mould bases comprises two respectively to the sidepiece mould bases that two described sidepieces arch section (1-2) of constructed inverted arch are constructed, the structure of two described sidepiece mould bases identical and the two symmetrically lay, two described sidepiece mould bases are all laid along the longitudinal length direction in institute's construction tunnel hole (4), the upper surface that described sidepiece mould bases comprises counter-lateral quadrents arch section (1-2) carry out molding construction arc-shaped steel template (2), be positioned at arc-shaped steel template (2) top and the formwork-support (3) that arc-shaped steel template (2) is supported and the front support be positioned at below arc-shaped steel template (2) front side and detent mechanism, described arc-shaped steel template (2) and formwork-support (3) are fastenedly connected and are integrated, and the shape of cross section of described arc-shaped steel template (2) is identical with the upper surface shape that sidepiece encircles section (1-2), described formwork-support (3) comprises the upper fixed frame laid in level and is supported in side-lower in fixed framework and in vertically to the lower support framework laid, described lower support framework and fixed framework are all laid along the longitudinal length direction in institute's construction tunnel hole (4), fixed framework outside-supporting is in the outer upper of arc-shaped steel template (2), and described lower support frame supported is in the inside upper part of arc-shaped steel template (2), described lower support base of frame with outside fixed framework between be connected by multiple tracks first skewed horizontal load bar, be provided with the second skewed horizontal load bar that multiple tracks is reinforced arc-shaped steel template (2) inside fixed framework and between arc-shaped steel template (2), described in the first skewed horizontal load bar described in multiple tracks and multiple tracks, the second skewed horizontal load bar is all laid from front to back along the longitudinal length direction in institute's construction tunnel hole (4), described front support and detent mechanism comprise the inner support mechanism and outer support mechanism that lay respectively at the inside and outside down either side of arc-shaped steel template (2), described inner support mechanism comprise be supported in arc-shaped steel template (2) inside bottom interior Steel bar rack and Duo Gen from the inside to the outside to the inner position reinforcing bar (5-1) that arc-shaped steel template (2) positions, the bottom of described inner position reinforcing bar (5-1) is fixed on bottom, institute's construction tunnel hole (4) or is weldingly fixed on described interior Steel bar rack, the upper end of described inner position reinforcing bar (5-1) prop up withstand on arc-shaped steel template (2) inside side walls on, described outer support mechanism comprises from outside to inside to the outer steel bar positioning frame that arc-shaped steel template (2) positions, described outer steel bar positioning frame comprises the many lateral register reinforcing bars (5-4) be supported between arc-shaped steel template (2) and institute's construction tunnel hole (4) sidewall, many described lateral register reinforcing bars (5-4) are all laid along the width in institute's construction tunnel hole (4), and connected as one by multiple tracks first connecting reinforcement (5-6) between many described lateral register reinforcing bars (5-4), lateral register reinforcing bar (5-4) bottom described in every root is provided with many second lower support reinforcing bars (5-5) supported, described second lower support reinforcing bar (5-5) upper weld is fixed on supported lateral register reinforcing bar (5-4) and its underpart and is fixed on bottom, institute's construction tunnel hole (4).
2. according to tunnel invert construction monoblock type mould bases according to claim 1, it is characterized in that: described sidepiece mould bases also comprises the rear support and detent mechanism that are positioned at arc-shaped steel template (2) rear side below, and the structure of described rear support and detent mechanism is identical with the structure of described front support and detent mechanism.
3. according to the tunnel invert construction monoblock type mould bases described in claim 1 or 2, it is characterized in that: fixed framework comprises upper longeron that twice are parallel laying and multiple tracks and is connected to lateral connection beam (6-1) described in twice between upper longeron, upper longeron described in twice is respectively and is positioned at inner side rail (6-2) above arc-shaped steel template (2) outside and outer side rail (6-3) and the two is laid in same level; Described lower support framework comprises and is positioned at lower longeron (7-1) immediately below inner side rail (6-2) and multiple tracks together and is connected to vertical supporting bar (7-2) between inner side rail (6-2) and lower longeron (7-1), described inner side rail (6-2), outer side rail (6-3) and lower longeron (7-1) are all laid along the longitudinal length direction in institute's construction tunnel hole (4), and vertical supporting bar (7-2) described in multiple tracks is all laid on same vertical plane and its longitudinal length direction along institute's construction tunnel hole (4) and lays from front to back; Lateral connection beam (6-1) described in multiple tracks all with inner side rail (6-2) in vertical runs and its be all laid in same level.
4. according to tunnel invert construction monoblock type mould bases according to claim 3, it is characterized in that: described lateral connection beam (6-1), inner side rail (6-2), outer side rail (6-3), lower longeron (7-1) and vertical supporting bar (7-2) are shaped steel, described lateral connection beam (6-1) with between inner side rail (6-2) and outer side rail (6-3) and vertical supporting bar (7-2) be all fixedly connected with welding manner with between inner side rail (6-2) with lower longeron (7-1).
5. according to tunnel invert construction monoblock type mould bases according to claim 3, it is characterized in that: described first skewed horizontal load bar is for being connected to stringer bracing bar (9) between outer side rail (6-3) and lower longeron (7-1) and it is shaped steel; Lateral connection beam (6-1) described in multiple tracks is in evenly laying, before and after be provided with described first skewed horizontal load bar together between lateral connection beam (6-1) described in adjacent twice, the first skewed horizontal load bar described in multiple tracks is all laid on same plane and its indention is laid.
6. according to tunnel invert construction monoblock type mould bases according to claim 3, it is characterized in that: the quantity of described second skewed horizontal load bar is identical with the quantity of lateral connection beam (6-1), described in per pass, lateral connection beam (6-1) below is provided with described second skewed horizontal load bar together, described second skewed horizontal load bar is the template hound (8) reinforced arc-shaped steel template (2) and it is shaped steel, and the upper end of described template hound (8) is fixed on upper and its lower end of inner side rail (6-2) and is fixed in arc-shaped steel template (2).
7. according to the tunnel invert construction monoblock type mould bases described in claim 1 or 2, it is characterized in that: described interior Steel bar rack comprises the support frame that is welded by many upper spacer bars (5-2) and Duo Gen and is supported in the first lower support reinforcing bar (5-3) bottom described support frame, and the top of many described first lower support reinforcing bars (5-3) is all weldingly fixed on described first support frame and its underpart and is all fixed on bottom, institute's construction tunnel hole (4).
8. according to the tunnel invert construction monoblock type mould bases described in claim 1 or 2, it is characterized in that: described front support and detent mechanism also comprise the arc connecting reinforcement (10) be connected between described inner support mechanism and described outer support mechanism.
9. according to tunnel invert construction monoblock type mould bases according to claim 8, it is characterized in that: the quantity of described arc connecting reinforcement (10) is one and it is positioned at arc-shaped steel template (2) below, and the two ends of described arc connecting reinforcement (10) are weldingly fixed on described interior Steel bar rack and described outer steel bar positioning frame respectively; The inner of many described lateral register reinforcing bars (5-4) is all propped up and is withstood in arc-shaped steel template (2), connected by together upper connecting reinforcement (11) between the inner of many described lateral register reinforcing bars (5-4), described upper connecting reinforcement (11) is laid along the longitudinal length direction in institute's construction tunnel hole (4) and it is supported on arc-shaped steel template (2) below.
10., according to the tunnel invert construction monoblock type mould bases described in claim 1 or 2, it is characterized in that: described arc-shaped steel template (2) and fixed framework, between described lower support framework and described first skewed horizontal load bar all with welding manner or all by connecting bolt be fixed and be connected; The side, front and back of fixed framework is provided with two lifting parts (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768305.2U CN204299591U (en) | 2014-12-08 | 2014-12-08 | Monoblock type mould bases is used in tunnel invert construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768305.2U CN204299591U (en) | 2014-12-08 | 2014-12-08 | Monoblock type mould bases is used in tunnel invert construction |
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| CN204299591U true CN204299591U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401960A (en) * | 2015-10-12 | 2016-03-16 | 中铁十九局集团第七工程有限公司 | Formwork for railway tunnel inverted arch construction and construction method of formwork |
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- 2014-12-08 CN CN201420768305.2U patent/CN204299591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401960A (en) * | 2015-10-12 | 2016-03-16 | 中铁十九局集团第七工程有限公司 | Formwork for railway tunnel inverted arch construction and construction method of formwork |
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