CN104453949A - Narrow-beam transition section steel mould trolley for tunnel and construction method - Google Patents

Narrow-beam transition section steel mould trolley for tunnel and construction method Download PDF

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Publication number
CN104453949A
CN104453949A CN201410732694.8A CN201410732694A CN104453949A CN 104453949 A CN104453949 A CN 104453949A CN 201410732694 A CN201410732694 A CN 201410732694A CN 104453949 A CN104453949 A CN 104453949A
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China
Prior art keywords
backform
transition section
transition
template
narrow
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CN201410732694.8A
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CN104453949B (en
Inventor
周厚贵
戴志清
汪文亮
廖湘辉
黄家权
朱俊杰
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China Gezhouba Group Three Gorges Construction Engineering Co Ltd
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China Gezhouba Group Co Ltd
China Gezhouba Group Three Gorges Construction Engineering 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
    • E21D11/04Lining 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (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 narrow-beam transition section steel mould trolley for a tunnel and a construction method. The trolley comprises a transition section top mould, wherein crown mould plates of the transition section steel mould trolley are designed in a split type; the mould plates, including transition section top moulds, top mould transition mould plates, lateral top moulds and lateral moulds which are sequentially arranged from top to bottom, are symmetrically distributed about the center of the tunnel; all mould plates are hinged to one another by pin shafts; the lateral top moulds and the lateral moulds are connected with and fixed to a trolley gate frame through multiple groups of support lead screws and a plurality of hydraulic oil cylinders. Transition section concrete is constructed by using the steel mould trolley, side and roof arches are subjected to whole-section pouring molding at a time, so that the construction layering is reduced, the construction procedures are increased, the cost input is reduced. The transition section steel mould trolley has a large steel mould plate structure, so that the joint of the mould plates is reduced, and the concrete construction quality is improved.

Description

A kind of narrow transition section steel form carrier of tunnel bundle and construction method
Technical field
The present invention relates to the steel form carrier field of constructing tunnel, be specifically related to the narrow transition section steel form carrier of a kind of tunnel bundle and construction method.
Background technology
Cavern's inducer in underground construction and outlet section are usually designed to transition section for meeting runner Hydraulic design parameter needs, the tailrace tunnel of such as underground power house, cavern's end outlet segment structure form is the narrow transition section of the gateway opening pencil of forms, and namely port size fades to light section by big cross section.For the lining concrete of the narrow transition section form of structure of this bundle, conventional steel form carrier is adopted to carry out lining construction, one is the crown circular arc of the narrow transition section of the gateway opening pencil of forms is the gradual change circular arc of the descending change of radius, and abutment wall rectangular apertures is the grading structure narrowed from the width; Conventional steel form carrier crown circle curve template is same radius, and sidewall template is unified aperture width, cannot meet liner structure needs.Two is if adopt conventional steel form carrier construction, steel form carrier after lining cutting is owing to limiting by transition section structure, namely cannot build the shaping transition section demoulding from the sole outlet of cavern runs to hole, and take steel form carrier to walk in hole dismounting, by the template that in the hole of lining cutting, section concrete space constraint can only be decomposed, destructiveness removes steel form carrier, construction cost is large, and the construction period is long, large to other operations construction interference in hole.The transition section lining construction method of usual employing is, after bottom slab concreting completes, side wall rectangular apertures adopts large steel moulding plate construction in layer, crown is taked to set up bracing frame and is joined polylith small steel templates and build lining concrete, which construction cost has high input, the construction period is long, and the concrete blinding seam of building is many, presentation quality is poor.
Summary of the invention
Technical problem to be solved by this invention is to provide the narrow transition section steel form carrier of a kind of tunnel bundle and construction method, the shaping transition section lining concrete of steel form carrier tunneling boring one-time-concreting can be adopted, steel form carrier after the demoulding can conveniently run to hole from the narrow transition section of bundle, and design ingenious, easy and simple to handle, safe and reliable.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of tunnel bundle narrow transition section concrete lining steel form carrier, comprise chassis door frame, chassis door frame bottom is provided with moving assembly, be provided with between chassis door frame and backform bracing frame and organize backform hoist cylinder and jack more, backform bracing frame is connected with transition section backform, and transition section backform both sides are connected with backform transition template respectively, backform transition template is connected with side backform, and side backform is connected with side form; Described transition section backform and backform transition template are laid on backform bracing frame top; Described side backform and side form are connected and fixed by the support screws and multiple hydraulic jack and chassis door frame organized more.
Described side form coordinates Chain block can adjust the distance of side form and chassis door frame.
Described transition section backform, backform transition template, backform and side form adopt split-type structural, template with tunnel Central Symmetry distribution, from top under distribute successively, connected by hinge between each section of template.
Backform bracing frame lower transverse beam two ends have dismountable brace summer and backform transition template to be connected and fixed respectively.
Described side backform is made up of straight section and segmental arc, and bottom is straight section, and top is segmental arc.
Described side form is divided into 3 sections, is respectively hypomere, stage casing, epimere from bottom to top, wherein epimere and stage casing contour, hypomere height is minimum.
A kind of tunnel bundle narrow transition section steel form carrier lining construction method, comprises the following steps:
One, narrow for tunnel bundle transition section concrete lining steel form carrier is run to transition section position in hole;
Two, the template of transition section steel form carrier is all supported to design profile line position, position in storehouse checks and accepts after-pouring concrete:
1) remove the support screw of side form, jacking backform hoist cylinder, is adjusted to design attitude by transition section backform and backform transition template;
2) hydraulic jack of installation and elongation side form, is adjusted to design attitude by side backform and side form, and regulates fixation with support screw;
3) all standby storehouses have worked, and position in storehouse is checked and accepted rear tunneling boring and built transition section lining concrete;
Three, lining concrete reaches the demoulding of solidifying after date transition section steel form carrier, and trolley running is to outside hole:
1) lining concrete reaches solidifying after date, removes the support screw between side form and chassis door frame, shrinks hydraulic jack and side form is departed from concrete surface; Remove the bearing pin that side form is connected with side backform, side form is separated with side backform and entire lowering;
2) with Chain block, side form is hung, and remove hydraulic jack between side form and chassis door frame;
3) within regulating Chain block side form to be adjusted to the narrow section line of bundle, and be connected and fixed between side form and chassis door frame with support screw, remove Chain block;
4) remove the support screw between side backform and chassis door frame, shrink backform hoist cylinder and the hydraulic jack between contraction side backform bottom and chassis door frame, make transition section backform, backform transition template and side backform depart from concrete surface;
5) brace summer that backform transition template is connected with backform bracing frame lower transverse beam is removed, backform transition template rotates to the inside, hydraulic jack between contraction side backform bottom and chassis door frame, within making backform transition template and side backform adjust to the narrow section line of bundle, and change hydraulic jack into support screw;
6) checking that steel form carrier template is connected with the support screw between chassis door frame can rearward, and steel form carrier runs to outside hole;
The lining construction of the narrow transition section steel form carrier of bundle is realized by above method.
A kind of tunnel bundle narrow transition section concrete lining steel form carrier provided by the invention and method, transition section concrete adopts steel form carrier construction side and roof arch tunneling boring to build shaping, decreases stratified construction, accelerates construction speed, reduces cost input.Transition section steel form carrier is large steel moulding plate structure, decreases form joint, improves concrete construction quality.Transition section steel form carrier crown template adopts split-type design, this split-type design is adopted to be conducive to the contraction of template, particularly be provided with backform transition template, itself and detachable brace summer with the use of, install brace summer shuttering supporting in place can meet build, after removing brace summer, the contractile scope of backform transition template increases, and coordinates support screw and hydraulic jack and chassis door frame to interact, and meets after crown big cross section place template is shunk and can be less than the narrow section of bundle; Side form coordinates Chain block can adjust the distance of side form and chassis door frame, the narrow cross dimensions of bundle is less than after chassis big cross section place template is shunk, successfully solve the problem that the narrow transition section of bundle adopts the steel form carrier construction formwork demoulding and steel form carrier to appear, accelerate construction speed, avoid to take to decompose in hole and remove the large problem of steel form carrier construction interference.Transition section steel form carrier utilizes chassis door frame and the side form of standard cavern section, decreases redesign and processing and fabricating cost, accelerates construction speed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is top planar view of the present invention.
Fig. 2 is the sectional view that steel form carrier of the present invention enters hole state.
Fig. 3 is the sectional view that steel form carrier of the present invention builds state.
Fig. 4 is the sectional view of steel form carrier demoulding state step 1 of the present invention.
Fig. 5 is the sectional view of steel form carrier demoulding state step 2 of the present invention.
Fig. 6 is the sectional view of steel form carrier demoulding state step 3 of the present invention.
Fig. 7 is the sectional view of steel form carrier demoulding state step 4 of the present invention.
Fig. 8 is the sectional view of steel form carrier demoulding state step 5 of the present invention.
In figure: transition section backform 1, backform transition template 2, side backform 3, side form 4, steel form carrier door frame 5, backform hoist cylinder 6, brace summer 7, support screw 8, hydraulic jack 9, backform bracing frame 10, Chain block 11, standard section 12, restraints narrow section 13, jack 14.
Detailed description of the invention
As shown in Figure 1, Figure 3, a kind of tunnel bundle narrow transition section concrete lining steel form carrier, comprise chassis door frame 5, chassis door frame bottom is provided with moving assembly, be provided with between chassis door frame 5 and backform bracing frame 10 and organize backform hoist cylinder 6 and jack 14 more, backform bracing frame 10 is connected with transition section backform 1, and transition section backform 1 both sides are connected with backform transition template 2 respectively, backform transition template 2 is connected with side backform 3, and side backform 3 is connected with side form 4; Described transition section backform 1 and backform transition template 2 are laid on backform bracing frame 10 top; Described side backform 3 and side form 4 are connected and fixed with chassis door frame 5 by many group support screws 8 and multiple hydraulic jack 9.Described side form 4 coordinates Chain block 11 can adjust the distance of side form 4 and chassis door frame 5.
Described transition section backform 1, backform transition template 2, backform 3 and side form 4 adopt split-type structural, template with tunnel Central Symmetry distribution, from top under distribute successively, connected by hinge between each section of template.
Backform bracing frame 10 lower transverse beam two ends have dismountable brace summer 7 to be connected and fixed with backform transition template 2 respectively.
Backform 3 bottom, described side is straight section, and top is segmental arc.This kind of structure one is adopted to be ensure that the concrete appearance type quality after building is excellent, the position build smoothness that particularly straight section and circular arc are tangent.Two is be convenient to and the connection of side form 4 and reinforcing.
Described support screw 8 can regulate length, adapts to template and is in connection with chassis door frame 5 under diverse location operating mode.
Described side form 4 height is preferably divided into 3 sections, is respectively hypomere, stage casing, epimere from bottom to top, wherein epimere and stage casing contour, hypomere height is minimum.This kind of structure is adopted to be convenient to side form 4 shrink to the inside and entire lowering.
Described backform bracing frame 10 lower transverse beam two ends have dismountable brace summer 7 to be connected and fixed with backform transition template 2 respectively.
A kind of tunnel bundle narrow transition section concrete lining steel form carrier lining construction method, comprises the following steps:
One, as shown in Figure 2, standard paragraphs steel form carrier is run to outside hole transform transition section steel form carrier as.
1) remove crown support and be replaced by transition section backform bracing frame 10, removing crown template replacement is transition section backform 1, backform transition template 2 and side backform 3, and template is divided into two major parts by length direction.Now backform hoist cylinder 6 is at initial position, not upwards jacking, and top mould section.In is below narrow section 13 line of bundle.It should be noted that, transition section steel form carrier main part still adopts the main body of standard paragraphs steel form carrier, the systems such as chassis door frame, side form and walking, hydraulic pressure, driving or standard paragraphs, what change is only that crown supports and crown template, can reduce cost input, accelerating construction progress like this.
2) within side backform 3 and side form 4 being inwardly contracted to the narrow section 13 of bundle, and removing hydraulic jack 9 and be replaced by support screw 8, steel form carrier runs to transition section position in hole.It should be noted that, during steel form carrier transformation, the synchronous standby storehouse of transition section position in storehouse, has completed installation and the colligation work of reinforcing bar, section width after the reinforcement installation at narrow section 13 place is slightly larger than narrow section 13 line 10 ~ 20cm, and when transition section steel form carrier runs in hole, trolley formwork needs to shrink.
Two, as shown in Figure 3, the template of transition section steel form carrier is all supported to design profile line position, position in storehouse checks and accepts after-pouring concrete.
1) remove the support screw 8 of side form 4, jacking backform hoist cylinder 6, is adjusted to design attitude by transition section backform 1 and backform transition template 2.
2) hydraulic jack 9 of installation and elongation side form 4, is adjusted to design attitude by side backform 3 and side form 4, installs support screw 8, regulates the length of every root support screw 8 to adapt to the position of side backform 3 and side form 4, and fixation.Now side, template upstream and downstream is respectively with standard section 12 with restraint narrow section 13 identical.
3) all standby storehouses have worked, and position in storehouse is checked and accepted rear tunneling boring and built transition section lining concrete.
Three, lining concrete reaches the demoulding of solidifying after date transition section steel form carrier, and trolley running is to outside hole.
1) as shown in Figure 4, lining concrete reaches solidifying after date, removes the support screw 8 of side form 4 hypomere and shrinks template about 7 ° to the inside, with Chain block 11, side form 4 hypomere being suspended on pars infrasegmentalis in side form 4; Remove side form 4 stage casing and the support screw between epimere and chassis door frame 58 successively from bottom to top, shrink hydraulic jack 9 and side form 4 is departed from concrete surface, and the hydraulic jack 9 of side form 4 epimere template topmost is removed; Remove the bearing pin that side form 4 is connected with side backform 3, side form 4 is separated with side backform 3 and entire lowering, the hydraulic jack 9 of side form 4 epimere template topmost is replaced by support screw 8, adjustment side form 4 is in vertical state.
2) as shown in Figure 5, with Chain block 11, side form 4 is hung firmly, remove the attachment screw of side form 4 length direction, side form 4 is splitted into two parts according to length direction, remove hydraulic jack 9 and support screw 8 between side form 4 and chassis door frame 5.
3) as shown in Figure 6, within regulating Chain block 11 side form 4 to be adjusted to narrow section 13 line of bundle, be connected and fixed between side form 4 and chassis door frame 5 with support screw 8, remove Chain block 11.
4) as shown in Figure 7, remove the support screw 8 between side backform 3 and chassis door frame 5, shrink backform hoist cylinder 6 and the hydraulic jack 9 between contraction side backform 3 bottom and chassis door frame 5, make transition section backform 1, backform transition template 2 and side backform 3 depart from concrete surface.Now transition section backform 1 has been contracted to below narrow section 13 line of bundle.
5) as shown in Figure 8, remove the brace summer 7 that backform transition template 2 is connected with backform bracing frame 10 lower transverse beam, backform transition template 2 rotates about 5 ° to the inside, hydraulic jack 9 between contraction side backform 3 bottom and chassis door frame 5, within making backform transition template 2 and side backform 3 adjust to narrow section 13 line of bundle, and change hydraulic jack 9 into support screw 8.
6) checking that steel form carrier template is connected with the support screw 8 between chassis door frame 5 can rearward, and steel form carrier runs to outside hole.
The lining construction of the narrow transition section steel form carrier of tunnel bundle is realized by above method.

Claims (7)

1. a tunnel bundle narrow transition section concrete lining steel form carrier, comprise chassis door frame (5), chassis door frame bottom is provided with moving assembly, it is characterized in that: be provided with between chassis door frame (5) and backform bracing frame (10) and organize backform hoist cylinder (6) and jack (14) more, backform bracing frame (10) is connected with transition section backform (1), transition section backform (1) both sides are connected with backform transition template (2) respectively, backform transition template (2) is connected with side backform (3), and side backform (3) is connected with side form (4); Described transition section backform (1) and backform transition template (2) are laid on backform bracing frame (10) top; Described side backform (3) and side form (4) are connected and fixed by organizing support screw (8) and multiple hydraulic jack (9) and chassis door frame (5) more.
2. tunnel bundle according to claim 1 narrow transition section concrete lining steel form carrier, is characterized in that: described side form (4) coordinates Chain block (11) can adjust the distance of side form (4) and chassis door frame (5).
3. tunnel bundle according to claim 1 narrow transition section concrete lining steel form carrier, it is characterized in that: described transition section backform (1), backform transition template (2), backform (3) and side form (4) adopt split-type structural, template distributes with tunnel Central Symmetry, from top under distribute successively, connected by hinge between each section of template.
4. tunnel bundle according to claim 1 narrow transition section concrete lining steel form carrier, is characterized in that: backform bracing frame (10) lower transverse beam two ends have dismountable brace summer (7) and backform transition template (2) to be connected and fixed respectively.
5. tunnel bundle according to claim 1 narrow transition section concrete lining steel form carrier, it is characterized in that: described side backform (3) is made up of straight section and segmental arc, bottom is straight section, and top is segmental arc.
6. tunnel bundle according to claim 1 narrow transition section concrete lining steel form carrier, is characterized in that: described side form (4) is divided into 3 sections, is respectively hypomere, stage casing, epimere from bottom to top, wherein epimere and stage casing contour, hypomere height is minimum.
7. a tunnel bundle narrow transition section steel form carrier lining construction method, is characterized in that: comprise the following steps:
One, narrow for tunnel bundle transition section concrete lining steel form carrier is run to transition section position in hole;
Two, the template of transition section steel form carrier is all supported to design profile line position, position in storehouse checks and accepts rear tunneling boring concreting:
1) remove the support screw (8) of side form (4), jacking backform hoist cylinder (6), is adjusted to design attitude by transition section backform (1) and backform transition template (2);
2) hydraulic jack (9) of installation and elongation side form (4), is adjusted to design attitude by side backform (3) and side form (4), and regulates fixation with support screw (8);
3) all standby storehouses have worked, and position in storehouse is checked and accepted rear tunneling boring and built transition section lining concrete;
Three, lining concrete reaches the demoulding of solidifying after date transition section steel form carrier, and trolley running is to outside hole:
1) lining concrete reaches solidifying after date, removes the support screw (8) between side form (4) and chassis door frame (5), shrinks hydraulic jack (9) and side form (4) is departed from concrete surface; Remove the bearing pin that side form (4) is connected with side backform (3), side form (4) is separated with side backform (3) and entire lowering;
2) with Chain block (11), side form (4) is hung, and remove hydraulic jack (9) between side form (4) and chassis door frame (5);
3) within regulating Chain block (11) side form (4) to be adjusted to bundle narrow section (13) line, and be connected and fixed between side form (4) and chassis door frame (5) with support screw (8), remove Chain block (11);
4) support screw (8) between side backform (3) and chassis door frame (5) is removed, shrink backform hoist cylinder (6) and the hydraulic jack (9) between contraction side backform (3) bottom and chassis door frame (5), make transition section backform (1), backform transition template (2) and side backform (3) depart from concrete surface;
5) brace summer (7) that backform transition template (2) is connected with backform bracing frame (10) lower transverse beam is removed, backform transition template (2) rotates to the inside, hydraulic jack (9) between contraction side backform (3) bottom and chassis door frame (5), within making backform transition template (2) and side backform (3) adjust to bundle narrow section (13) line, and change hydraulic jack (9) into support screw (8);
6) checking that steel form carrier template is connected with the support screw (8) between chassis door frame (5) can rearward, and steel form carrier runs to outside hole;
The lining construction of the narrow transition section steel form carrier of bundle is realized by above method.
CN201410732694.8A 2014-12-07 2014-12-07 A kind of narrow transition telescoping steel form construction method of tunnel bundle Active CN104453949B (en)

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN105781108A (en) * 2016-03-04 2016-07-20 中铁隧道集团二处有限公司 Overall transition construction method for large-size steel mould between adjacent field regions
CN106677800A (en) * 2016-12-21 2017-05-17 中国水电建设集团十五工程局有限公司 Large tunnel variable cross-section concrete lining construction method
CN107059873A (en) * 2017-04-26 2017-08-18 中国葛洲坝集团第二工程有限公司 Transition side becomes circle template and construction method
CN107100647A (en) * 2017-05-26 2017-08-29 中铁隧道集团二处有限公司 A kind of trolley formwork and its assembling and construction method of the gradual change of tunnel arch wall lining section
CN108005684A (en) * 2017-11-06 2018-05-08 新疆兵团水利水电工程集团有限公司 Separated steel mould trolley and its construction method
CN108361068A (en) * 2018-01-09 2018-08-03 中石化上海工程有限公司 A kind of cavern's Varied section design method of underground water seal cave depot
CN108442941A (en) * 2018-02-26 2018-08-24 龚岗 Tunnel bolt-spary supports concrete monoblock type subsectin bottler template and construction method
CN109488095A (en) * 2018-11-07 2019-03-19 中建三局第建设工程有限责任公司 Construction method based on acrylic bealock punching block
CN110107314A (en) * 2019-04-30 2019-08-09 中国葛洲坝集团第二工程有限公司 Transition region of tunnel lining construction method
CN110966009A (en) * 2019-12-31 2020-04-07 中铁第四勘察设计院集团有限公司 Construction method of bifurcated tunnel

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JPH1144197A (en) * 1997-07-29 1999-02-16 Gifu Kogyo Kk Method and device for placing tunnel concrete using form with variable cross-sectional shape
CN101082280A (en) * 2007-07-18 2007-12-05 湖南中铁五新钢模有限责任公司 Single-track railway tunnel lining trolley
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CN105781108B (en) * 2016-03-04 2017-11-28 中铁隧道集团二处有限公司 A kind of construction method for being used to close on large-scale steel-mould trolley entirety transition between place
CN105781108A (en) * 2016-03-04 2016-07-20 中铁隧道集团二处有限公司 Overall transition construction method for large-size steel mould between adjacent field regions
CN106677800A (en) * 2016-12-21 2017-05-17 中国水电建设集团十五工程局有限公司 Large tunnel variable cross-section concrete lining construction method
CN107059873A (en) * 2017-04-26 2017-08-18 中国葛洲坝集团第二工程有限公司 Transition side becomes circle template and construction method
CN107100647B (en) * 2017-05-26 2019-10-29 中铁隧道集团二处有限公司 A kind of assembling and construction method of the trolley formwork of tunnel arch wall lining section gradual change
CN107100647A (en) * 2017-05-26 2017-08-29 中铁隧道集团二处有限公司 A kind of trolley formwork and its assembling and construction method of the gradual change of tunnel arch wall lining section
CN108005684A (en) * 2017-11-06 2018-05-08 新疆兵团水利水电工程集团有限公司 Separated steel mould trolley and its construction method
CN108005684B (en) * 2017-11-06 2023-11-28 新疆兵团水利水电工程集团有限公司 Separated steel mould trolley and construction method thereof
CN108361068A (en) * 2018-01-09 2018-08-03 中石化上海工程有限公司 A kind of cavern's Varied section design method of underground water seal cave depot
CN108361068B (en) * 2018-01-09 2019-07-26 中石化上海工程有限公司 A kind of cavern's Varied section design method of underground water seal cave depot
CN108442941A (en) * 2018-02-26 2018-08-24 龚岗 Tunnel bolt-spary supports concrete monoblock type subsectin bottler template and construction method
CN109488095A (en) * 2018-11-07 2019-03-19 中建三局第建设工程有限责任公司 Construction method based on acrylic bealock punching block
CN110107314A (en) * 2019-04-30 2019-08-09 中国葛洲坝集团第二工程有限公司 Transition region of tunnel lining construction method
CN110966009A (en) * 2019-12-31 2020-04-07 中铁第四勘察设计院集团有限公司 Construction method of bifurcated tunnel

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