CN106499411B - A kind of single-track tunnel macroportion inverted arch self-propelled suspension template and construction method - Google Patents

A kind of single-track tunnel macroportion inverted arch self-propelled suspension template and construction method Download PDF

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Publication number
CN106499411B
CN106499411B CN201611068669.XA CN201611068669A CN106499411B CN 106499411 B CN106499411 B CN 106499411B CN 201611068669 A CN201611068669 A CN 201611068669A CN 106499411 B CN106499411 B CN 106499411B
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China
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template
self
inverted arch
propelled
bracket
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CN106499411A (en
Inventor
尚军
赵伟
韩建坤
王彦伟
马占群
何阳春
宫学君
王光伟
宋康年
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China Railway Tunnel Group Erchu Co Ltd
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China Railway Tunnel Group Erchu Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/102Removable shuttering; Bearing or supporting devices therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/40Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention discloses a kind of single-track tunnel macroportion inverted arch self-propelleds to hang template, suspension template is hung below self-propelled trestle by chain block, suspension template includes point template along the setting of tunnel macroportion inverted arch two sides, point template is formed by several along the small template splicing that tunnel is axially arranged, small template includes the arc circumferential direction template and L-type vertical formwork that one end is hinged, bracket is fixed on the inside of L-type vertical formwork, it is connected with by the bracket to support truss between point template of tunnel macroportion inverted arch two sides, the upper end of bracket is connected with spacing column, spacing column hangs bracket by side and is connected with self-propelled trestle.Inverted arch self-propelled suspension template and construction method in single-track tunnel proposed by the present invention, solves monoblock type inverted arch two and serves as a contrast template in single-track tunnel using limitation problem, installs, removes simple and convenient, simplifies workload, improve work efficiency.

Description

A kind of single-track tunnel macroportion inverted arch self-propelled suspension template and construction method
Technical field
The present invention relates to tunnel construction technical fields, it particularly relates to which a kind of single-track tunnel macroportion inverted arch is certainly Line hangs template and construction method.
Background technique
Tunnel inverted arch and filling construction must separate pouring construction according to design specification inverted arch and filling, and inverted arch construction is wanted Inverted arch arc formwork and end head formwork are first installed, then pour inverted arch concrete.Start demoulding installation after inverted arch concrete final set to fill out Mold filling plate finally pours filling layer concrete.Arc formwork installation difficulty is larger in construction, the time is long, demoulding rear pattern plate falls Larger workload is transported, and template size deviation is extremely difficult to design requirement.Single-track tunnel is limited by space, traditional inverted arch trestle Monoblock type template is not available in single-track tunnel.
Summary of the invention
It is an object of the invention to propose that a kind of single-track tunnel macroportion inverted arch self-propelled hangs template and construction method, energy Enough solve the problems, such as monoblock type template in single-track tunnel using limited.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of single-track tunnel macroportion inverted arch self-propelled suspension template, the suspension template are hung on certainly by chain block Below line trestle, and can be with the self-propelled trestle advanced in unison, the suspension template includes facing upward along tunnel macroportion The setting of arch two sides divides template, and described point of template is formed by several along the small template splicing that tunnel is axially arranged, the small template It is hinged including one end
Arc circumferential direction template and L-type vertical formwork, be fixed with bracket on the inside of the L-type vertical formwork, be located at tunnel It is connected with by the bracket to support truss, the upper end connection of the bracket between point template of road macroportion inverted arch two sides There is spacing column, the spacing column hangs bracket by side and is connected with self-propelled trestle.
Further, it is also fixed by the first support lead screw between the top and self-propelled trestle of the L-type vertical formwork It is connected.
Further, the arc circumferential direction template also supports lead screw to be connected with tunnel inside by third.
Further, it is equipped between the bracket and described pair of support truss for adjusting the adjusting for dividing template horizontal position Plate, and the bracket is connected with the adjustable plate, the adjustable plate is connected with described pair of support truss.
Further, it is also fixed by the second support lead screw between the arc circumferential direction template and the L-type vertical formwork It is connected.
Further, bracket of putting more energy into is additionally provided on the inside of described point of template.
A kind of construction method of single-track tunnel macroportion inverted arch self-propelled suspension template as described above, including following step It is rapid:
1) movement of template is hung, comprising:
1.1) middle line is marked on inverted arch basal plane;
1.2) self-propelled trestle is moved up for reference with the middle line marked on inverted arch basal plane, it is ensured that self-propelled trestle is not inclined From middle line;
1.3) suspension template is moved to behind specified position with self-propelled trestle and purges substrate pine slag and sundries completely;
2) Template Location is hung, comprising:
2.1) horizontal elevation positions: according to measurement control point, adjusting suspension form height using chain block, before adjusting first It measures and hangs die head elevation at suspension centre, first carry out rough adjustment and accurately adjusted again;
2.2) middle line positions: according to measurement control point, transferring the position to adjustable plate at support truss, adjustment using jack When first adjust tip position adjust again other to support truss position, bolt on adjustable plate is locked after being adjusted in place;
2.3) fixing rivet is set on the branch abutment wall of two sides after the completion of positioning, the fixed suspension mould of lead screw is supported by third Plate;
3) casting concrete, comprising:
3.1) inverted arch casting concrete is given according to the sequence of first intermediate and then both sides;
3.2) after it is above-mentioned pour operation terminate 8 hours after, opening quotation pour inverted arch fill concrete to designed elevation;
4) demould: step 3.2) operation starts to demould after terminating 4 hours, and demoulding includes the following steps:
4.1) it removes third and supports lead screw;
4.2) the second support lead screw removed between arc circumferential direction template and L-type vertical formwork withdraws arc circumferential direction template;
4.3) adjustable plate is unclamped;
4.4) suspension template is promoted by chain block and completes demoulding.
Further, self-propelled trestle is fixed in the following, simultaneously for template is hung by the first support lead screw in step 1.2) It is limited by hanging bracket with the sequentially connected spacing column of bracket and side.
Beneficial effects of the present invention: inverted arch self-propelled suspension template and construction party in single-track tunnel proposed by the present invention Method solves monoblock type inverted arch two and serves as a contrast template in single-track tunnel using limitation problem, installs, removes simple and convenient, simplifies Workload improves work efficiency.
Detailed description of the invention
Fig. 1 is the use structure of the single-track tunnel macroportion inverted arch self-propelled suspension template described according to embodiments of the present invention Schematic diagram;
Fig. 2 is the structural schematic diagram of the circumferential template described according to embodiments of the present invention;
Fig. 3 is the structural schematic diagram of the vertical formwork described according to embodiments of the present invention;
Fig. 4 is the structural schematic diagram of the bracket of putting more energy into described according to embodiments of the present invention;
Fig. 5 is the structural schematic diagram of the bracket described according to embodiments of the present invention;
Fig. 6 is the structural schematic diagram to support truss described according to embodiments of the present invention;
Fig. 7 is that described according to embodiments of the present invention spacing column and side hang the front view connected between bracket;
Fig. 8 is that described according to embodiments of the present invention spacing column and side hang the side view connected between bracket;
Fig. 9 is the structural schematic diagram of the adjustable plate described according to embodiments of the present invention;
Figure 10 is the structural schematic diagram of the first described according to embodiments of the present invention support lead screw;
Figure 11 is the structural schematic diagram of the third support lead screw described according to embodiments of the present invention;
Figure 12 is the side structure schematic diagram of the suspension template described according to embodiments of the present invention.
It is as shown in the figure:
1- arc circumferential direction template;2-L type vertical formwork;3- puts more energy into bracket;4- bracket;5- is to support truss;6- spacing column; 7- hangs bracket in side;8- template leans on band;9- second supports lead screw;10- adjustable plate;11- chain block;12- first supports lead screw; 13- third supports lead screw;The vertical connecting plate of 14-;15- horizontal connecting plate;16-L shape bracket;The first bolt hole of 17-;18- second Bolt hole;19- third bolt hole;The 4th bolt hole of 20-;21- sliding slot.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground description.
As shown in figs. 1-12, a kind of single-track tunnel macroportion inverted arch self-propelled suspension described in embodiment according to the present invention Template, the suspension template are hung below self-propelled trestle by 5 tons of chain block 11, and can be with the self-propelled Trestle advanced in unison, the suspension template include point template along the setting of tunnel macroportion inverted arch two sides, and every piece is divided template construct 24 meters long, described point of template is formed by 16 pieces along the small template splicing that tunnel is axially arranged, i.e., the length of every piece small template is 1.5 Rice, the small template include the arc circumferential direction template 1 and L-type vertical formwork 2 that one end is mutually connected by hinges 26, and the L-type is perpendicular It is fixed with bracket 4 to the inside of template 2, as shown in figure 5, the bracket 4 includes vertically connecting along the setting of L-type vertical formwork 2 Fishplate bar 14 and the horizontal connecting plate 15 being fixedly linked with vertical 14 upper end of connecting plate, vertical connecting plate 14 and horizontal connecting plate 15 it Between be further fixed on a L bracket 16, the top of vertical connecting plate 14 is set there are three the first bolt hole 17, is set on horizontal connecting plate 15 There are two the second bolts hole 18, are connected between point template described in tunnel macroportion inverted arch two sides by the bracket 4 To support truss 5, the effect of support truss 5 is for a point template for two sides to be connected as one, and then can be incited somebody to action by chain block 11 Suspension template system hangs over below self-propelled trestle, as shown in fig. 6, the both ends of described pair of support truss 5 are equipped with third bolt hole 19, The upper end of the bracket 4 is connected with spacing column 6, and the spacing column 6 hangs bracket 7 by side and is connected with self-propelled trestle, institute It states spacing column 6 and side hangs the effect of bracket 7 and is to prevent suspension template from the larger swing in left and right occur.
In the above-described embodiments, be additionally provided with template by band 8, the template by band 8 be used to ensure small template rigidity and Straightness.
In the above-described embodiments, also pass through the first supporting wire between the top and self-propelled trestle of the L-type vertical formwork 2 Thick stick 12 is fixedly linked, it is therefore intended that prevents swing excessive when self-propelled trestle is mobile.
In the above-described embodiments, the arc circumferential direction template 1 also reinforces lead screw 13 by third with tunnel inside and is connected, mesh Be prevent the case where floating after suspension Template Location.
In the above-described embodiments, it is equipped between the bracket 4 and described pair of support truss 5 and divides template horizontal position for adjusting Adjustable plate 10, and the bracket 4 is connected with the adjustable plate 10, and the adjustable plate 10 is connected with described pair of support truss 5.Such as figure Shown in 8, in a specific embodiment, it is equipped with and 17 phase of the first bolt hole in adjustable plate 10 close to the part to support truss 5 Corresponding three the 4th bolts hole 20 are equipped with sliding slot 21 with respect to the position of the 4th bolt hole 20 on adjustable plate 10.Concrete operations When, 21 movement along the chute of suspension template is adjusted by jack, so that it is guaranteed that suspension template is without departing from inverted arch trestle middle line.
In the above-described embodiments, also pass through the second support between the arc circumferential direction template 1 and the L-type vertical formwork 2 Lead screw 9 is fixedly linked.Second support lead screw 9 is used for the folding and unfolding of arc circumferential direction template 1, and arc circumferential direction template 1 passes through the when demoulding Two support lead screws 9 are withdrawn, by the second support lead screw 9 ejection, it can be achieved that arc circumferential direction template 1 is mobile with trestle, fastly when formwork Fast formwork positioning.
In the above-described embodiments, in order to improve the stability for hanging template, as shown in figure 4, the inside for dividing template is also Equipped with bracket 3 of putting more energy into.
It is including following the invention also discloses a kind of construction method of single-track tunnel macroportion inverted arch self-propelled suspension template Step:
1) movement of template is hung, comprising:
1.1) middle line is marked on inverted arch basal plane;
1.2) self-propelled trestle is moved up for reference with the middle line marked on inverted arch basal plane, it is ensured that self-propelled trestle is not inclined From middle line;
1.3) suspension template is moved to behind specified position with self-propelled trestle and purges substrate pine slag and sundries completely;
2) Template Location is hung, comprising:
2.1) horizontal elevation positions: according to measurement control point, suspension form height is adjusted using chain block 11, before adjustment It first measures and hangs die head elevation at suspension centre, first carry out rough adjustment and accurately adjusted again;
2.2) middle line positions: according to measurement control point, the position to adjustable plate 10 at support truss 5 is transferred using jack, Tip position is first adjusted when adjustment and adjusts other again to support 5 position of truss, and bolt on adjustable plate 10 is locked after being adjusted in place Tightly;
2.3) fixing rivet is set on the branch abutment wall of two sides after the completion of positioning, the fixed suspension mould of lead screw 13 is supported by third Plate;
3) casting concrete, comprising:
3.1) inverted arch casting concrete is given according to the sequence of first intermediate and then both sides;
3.2) after it is above-mentioned pour operation terminate 8 hours after, opening quotation pour inverted arch fill concrete to designed elevation;
4) demould: step 3.2) operation starts to demould after terminating 4 hours, and demoulding includes the following steps:
4.1) it removes third and supports lead screw 13;
4.2) the second support lead screw 9 removed between arc circumferential direction template 1 and L-type vertical formwork 2 withdraws arc circumferential direction mould Plate (1);
4.3) adjustable plate 10 is unclamped;
4.4) suspension template is promoted by chain block 11 and completes demoulding.
Preferably, self-propelled trestle is fixed in the following, simultaneously for template is hung by the first support lead screw 12 in step 1.2) It is limited by hanging bracket 7 with the sequentially connected spacing column 6 of bracket 4 and side.
In conclusion inverted arch in single-track tunnel proposed by the present invention is voluntarily by means of above-mentioned technical proposal of the invention Formula hangs template and construction method, solves monoblock type inverted arch two and serves as a contrast template in single-track tunnel using limitation problem, installs, tears open Except simple and convenient, workload is simplified, is improved work efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (7)

1. a kind of single-track tunnel macroportion inverted arch self-propelled hangs template, which is characterized in that the suspension template is by pulling calabash Reed (11) is hung below self-propelled trestle, and can include with the self-propelled trestle advanced in unison, the suspension template Divide template along the setting of tunnel macroportion inverted arch two sides, described point of template by several small template splicings axially arranged along tunnel and At the small template includes the arc circumferential direction template (1) and L-type vertical formwork (2) that one end is hinged, the vertical mould of L-type It is fixed with bracket (4) on the inside of plate (2), passes through the bracket between template positioned at dividing described in tunnel macroportion inverted arch two sides (4) it is connected with to support truss (5), the upper end of the bracket (4) is connected with spacing column (6), and the spacing column (6) passes through side It hangs bracket (7) to be connected with self-propelled trestle, is equipped between the bracket (4) and described pair of support truss (5) and divides template for adjusting The adjustable plate (10) of horizontal position, and the bracket (4) is connected with the adjustable plate (10), the adjustable plate (10) with it is described right Truss (5) are supportted to be connected.
2. single-track tunnel macroportion inverted arch self-propelled according to claim 1 hangs template, which is characterized in that the L-type It is also fixedly linked by the first support lead screw (12) between the top and self-propelled trestle of vertical formwork (2).
3. single-track tunnel macroportion inverted arch self-propelled according to claim 1 hangs template, which is characterized in that the arc Circumferential template (1) is also connected by third support lead screw (13) with tunnel inside.
4. single-track tunnel macroportion inverted arch self-propelled according to claim 1 hangs template, which is characterized in that the arc It is also fixedly linked by the second support lead screw (9) between circumferential template (1) and the L-type vertical formwork (2).
5. single-track tunnel macroportion inverted arch self-propelled according to claim 1 hangs template, which is characterized in that described to divide mould Bracket of putting more energy into (3) are additionally provided on the inside of plate.
6. a kind of construction method of single-track tunnel macroportion inverted arch self-propelled suspension template as described in claim 1, feature It is, comprising the following steps:
1) movement of template is hung, comprising:
1.1) middle line is marked on inverted arch basal plane;
1.2) self-propelled trestle is moved up for reference with the middle line marked on inverted arch basal plane, it is ensured that self-propelled trestle is without departing from Line;
1.3) suspension template is moved to behind specified position with self-propelled trestle and purges substrate pine slag and sundries completely;
2) Template Location is hung, comprising:
2.1) horizontal elevation positions: according to measurement control point, adjusting suspension form height using chain block (11), before adjusting first It measures and hangs die head elevation at suspension centre, first carry out rough adjustment and accurately adjusted again;
2.2) middle line positions: according to measurement control point, the position to adjustable plate (10) at support truss (5) is transferred using jack, First adjusted when adjustment tip position adjust again other to support truss (5) position, after being adjusted in place to bolt on adjustable plate (10) into Row locking;
2.3) fixing rivet is set on the branch abutment wall of two sides after the completion of positioning, passes through the fixed suspension mould of third support lead screw (13) Plate;
3) casting concrete, comprising:
3.1) inverted arch casting concrete is given according to the sequence of first intermediate and then both sides;
3.2) after it is above-mentioned pour operation terminate 8 hours after, opening quotation pour inverted arch fill concrete to designed elevation;
4) demould: step 3.2) operation starts to demould after terminating 4 hours, and demoulding includes the following steps:
4.1) third support lead screw (13) is removed;
4.2) arc circumferential direction is withdrawn in the second support lead screw (9) removed between arc circumferential direction template (1) and L-type vertical formwork (2) Template (1);
4.3) adjustable plate (10) are unclamped;
4.4) suspension template is promoted by chain block (11) complete demoulding.
7. construction method according to claim 6, which is characterized in that will by the first support lead screw (12) in step 1.2) Suspension template is fixed on self-propelled trestle in the following, and by hanging bracket with bracket (4) sequentially connected spacing column (6) and side (7) it is limited.
CN201611068669.XA 2016-11-29 2016-11-29 A kind of single-track tunnel macroportion inverted arch self-propelled suspension template and construction method Active CN106499411B (en)

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CN112281774B (en) * 2020-10-23 2022-05-27 四川港航建设工程有限公司 Inverted arch finalized formwork system and construction method
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CN115095356A (en) * 2022-07-20 2022-09-23 中铁二十局集团有限公司 Anti-floating assembled inverted arch template structure and operation method thereof

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