CN105350503A - Hydropower station underground powerhouse unit transformer access tunnel structure and construction method thereof - Google Patents

Hydropower station underground powerhouse unit transformer access tunnel structure and construction method thereof Download PDF

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Publication number
CN105350503A
CN105350503A CN201510650351.1A CN201510650351A CN105350503A CN 105350503 A CN105350503 A CN 105350503A CN 201510650351 A CN201510650351 A CN 201510650351A CN 105350503 A CN105350503 A CN 105350503A
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crag
column
rock
access tunnel
rock face
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CN201510650351.1A
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CN105350503B (en
Inventor
刘恩举
周小乾
宋静
宁华晚
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PowerChina Guiyang Engineering Corp Ltd
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PowerChina Guiyang Engineering Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B9/00Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a hydropower station underground powerhouse unit transformer access tunnel structure and a construction method thereof. The structure comprises rock face simply support crane beams and rock face stand columns disposed in the positions of a unit transformer access tunnel; the rock face simply support crane beams are located on the upper portions of the rock face stand columns; rock face crane beams are disposed on the two sides of the corresponding rock face simply support crane beam; a row of tensile anchor rods are disposed on one side, close to the rock face, of the corresponding rock face simply support crane beam; stand column joint bars are disposed on one side, close to the rock face, of the corresponding rock face stand column and connected with surrounding rocks; stand column concrete foundations are disposed at the lower ends of the rock face stand columns; basic joint bars are disposed at the bottoms of the stand column concrete foundations; system supporting anchor rods are further disposed on the sides, close to the rock face, of the corresponding rock face simply support crane beams. The structure with the reinforced concrete rock face stand columns and the rock face simply support crane beams is adopted, the other row of tensile anchor rods and a row of pressed anchor rods which the rock face crane beams need are omitted, moreover the rock mass stability that the rock face crane beams step into the unit access tunnel is improved, and the construction is convenient.

Description

A kind of underground workshop factory becomes access tunnel structure and construction method thereof
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering technical field, specifically relate to a kind of underground workshop factory and become access tunnel structure and construction method thereof.
Background technology
At present.Between underground power house main building with main transformer hole, Jun You factory becomes access tunnel and is connected, the Reinforced Concrete Crane Girder of access tunnel section is become across factory as adopted Rock Crane Rail Support in main building, because becoming access tunnel top rock mass thinner thickness with factory bottom crane girder, be not enough to bear top crane load, easy generation local Instability of Rock Body, therefore necessary other structures that adopt are strengthened, to strengthen this position rock stability.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of economical rationality, safe and reliable, and underground workshop Rock Crane Rail Support Guo Jin factory's access tunnel structure of easy construction and construction method thereof.
The present invention is achieved by following technical solution.
A kind of underground workshop factory becomes access tunnel structure, comprise and be arranged at crag Simple Crane Girder and the crag column that factory becomes access tunnel position, described crag Simple Crane Girder is positioned at above crag column, crag Simple Crane Girder both sides are provided with Rock Crane Rail Support, described crag Simple Crane Girder is provided with row's tension anchor pole by crag side, described crag column arranges column joint bar by crag side be connected with country rock, described crag column lower end is provided with column concrete foundation, and basic joint bar is set bottom column concrete foundation, described crag Simple Crane Girder is also provided with system supporting anchor pole by crag side.
Described crag column top and crag Simple Crane Girder rest base are embedded with iron plate stool.
Described crag Simple Crane Girder top is provided with second stage concrete.
Described crag column lower end is also provided with concrete floor, and concrete floor is provided with gutter.
Described crag Simple Crane Girder and Rock Crane Rail Support junction are provided with shrinkage joint, and the width at shrinkage joint is 1.5cm.
L-600 type polyethylene from high pressure process closed-cell foam plate is filled with in described shrinkage joint.
Four sides weld all around is adopted, weld bead height 8mm between the iron plate stool that described crag column top is pre-buried and the pre-buried iron plate stool of crag Simple Crane Girder rest base; Embedded iron stool adopts thickness to be that to arrange diameter be that the dowel of 20mm welds for the steel plate and two of 20mm, array pitch 20mm.
The column joint bar diameter that described crag column is arranged by crag side is 28mm, and length is 4.5m, and arrangement pitch is 1.0 × 1.0m, and the concrete degree of depth that column joint bar inserts crag column is 1m; The diameter of described basic joint bar is 28mm, and length is 4.5m, and arrangement pitch is 0.6 × 0.6m, and the length of exposed parts is 1m.
Described system supporting anchor pole adopts diameter to be 28mm, and length is the grouting rock bolt of 6m or 9m, and between layout, array pitch is 1.5m, anchor pole exposes 10cm, interlaced arrangement, and expose 1m at crag Simple Crane Girder and crag column place system supporting anchor pole, and entering within the scope of rock 2m to lay one pitch; Described tension anchor pole adopts diameter to be the grouting rock bolt of 36mm, and length is 9 ~ 12m, and arrangement pitch is 0.75m, and entering the rock degree of depth is 7.2 ~ 10.2m, is entering within the scope of rock degree of depth 2m to lay one pitch.
A kind of underground workshop factory becomes access tunnel construction method, comprises following method step:
The first step, the factory of excavation main building and attached cavern becomes access tunnel;
Second step, arranges pneumatically placed concrete and system supporting anchor pole; Wherein, Rock Crane Rail Support, crag Simple Crane Girder and crag column scope not sprayed mortar;
3rd step, arranges Rock Crane Rail Support, crag Simple Crane Girder, tension anchor pole and Rock Crane Rail Support pressurized anchor pole;
4th step, the reinforcing bar of colligation Rock Crane Rail Support, crag Simple Crane Girder and crag column;
5th step, embedded iron stool;
6th step, builds Rock Crane Rail Support, crag Simple Crane Girder and crag column concrete;
7th step, lays bridge machine rail after the concrete in the 6th step reaches the age of concrete and leveling installs, and finally builds the second stage concrete at crag Simple Crane Girder top.
The invention has the beneficial effects as follows:
Compared with prior art, the present invention adopts steel concrete crag column to add crag Simple Crane Girder structure, not only save another row's tension anchor pole and row's pressurized anchor pole that Rock Crane Rail Support need arrange, and enhance the rock stability that Rock Crane Rail Support steps into access tunnel place of factory, easy construction, can in Hydraulic and Hydro-Power Engineering technical field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the drawing in side sectional elevation of crag Simple Crane Girder and crag column in the present invention;
Fig. 3 is that in the present invention, factory becomes access tunnel position drawing in side sectional elevation;
Fig. 4 is the A place enlarged diagram of Fig. 1.
In figure: 1-crag Simple Crane Girder, 2-crag column, 3-factory becomes access tunnel, 4-concrete floor, 5-Rock Crane Rail Support, 6-column concrete foundation, 7-gutter, 8-column joint bar, 9-system supporting anchor pole, 10-tension anchor pole, 11-column concrete bracket, 12-pre-embedded steel slab, the pre-buried dowel of 13-, 14-bridge machine rail, 15-second stage concrete, 16-shrinkage joint, 17-basis joint bar.
Detailed description of the invention
Technical scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figures 1 to 4, a kind of underground workshop factory of the present invention becomes access tunnel structure, comprise and be arranged at crag Simple Crane Girder 1 and the crag column 2 that factory becomes access tunnel 3 position, described crag Simple Crane Girder 1 is positioned at above crag column 2, crag Simple Crane Girder 1 both sides are provided with Rock Crane Rail Support 5, described crag Simple Crane Girder 1 is provided with row's tension anchor pole 10 by crag side, described crag column 2 arranges column joint bar 8 by crag side be connected with country rock, described crag column 2 lower end is provided with column concrete foundation 6, and basic joint bar 17 is set bottom column concrete foundation 6.The technical program becomes access tunnel position at Rock Crane Rail Support across factory and adopts steel concrete crag Simple Crane Girder 1 to add crag column 2 form of structure, and at crag Simple Crane Girder 1, one row's tension anchor pole 10 is set by crag side, described crag Simple Crane Girder 1 is also provided with system supporting anchor pole 9 by crag side, and the system supporting anchor pole 9 of factory building exposes 1m in crag Simple Crane Girder 1 scope, to stretch into crag Simple Crane Girder 1, when implementing, arrange column joint bar 8 at crag column 2 by crag side to be connected with country rock, bottom crag column concrete foundation 6, basic joint bar 17 is set.Then at crag column 2 top and crag Simple Crane Girder 1 rest base embedded iron stool.Carry out crag column 2 and crag Simple Crane Girder 1 reinforcing bar binding subsequently.First build Rock Crane Rail Support 1 section during concreting, after-pouring crag Simple Crane Girder 1 and 2 sections, crag column, lay steel beam for crane after reaching the age of concrete and install, the second stage concrete 15 at last crag Simple Crane Girder 1 top.
Described crag column 2 lower end is also provided with concrete floor 4, and concrete floor 4 is provided with gutter 7.
Described second stage concrete 15 is provided with bridge machine rail 14.And coordinate with the bridge machine rail 14 be arranged on Rock Crane Rail Support 5 and form Guo Jin factory traffic track.
Four sides weld all around is adopted, weld bead height 8mm between the iron plate stool that described crag column 2 top is pre-buried and the pre-buried iron plate stool of crag Simple Crane Girder 1 rest base; Embedded iron stool adopts thickness to be that to arrange diameter be that the dowel of 20mm welds for the steel plate and two of 20mm, and array pitch 20mm, adopts two-sided full weld with steel plate; It is the air vent of 60mm that the pre-buried steel plate in crag column 2 top is provided with two row's diameters, and hole array pitch is 50 ~ 60mm; Above-mentioned dowel model is HRB335.
Column joint bar 8 diameter that described crag column 2 is arranged by crag side is 28mm, and length is 4.5m, and arrangement pitch is 1.0 × 1.0m; The concrete degree of depth that described column joint bar 8 inserts crag column 2 is 1m; The diameter of described basic joint bar is 28mm, and length is 4.5m, and arrangement pitch is 0.6 × 0.6m, and the length of exposed parts is 1m; Described column joint bar 8 is coordinated to be evenly arranged with the locked anchor bar that system supporting anchor pole and factory become access tunnel 3, has the position of system anchor bolt 9 to expose 1m, can not arrange joint bar within the scope of crag column 2 abutment wall; The model of described column joint bar 8 and described basic joint bar 17 is HRB335.
The fist stage concrete of described crag column 2, column concrete foundation 6 and crag Simple Crane Girder 1 is C30 graduation two concrete, and the second stage concrete of crag Simple Crane Girder 1 is C30 mono-grading concrete, and thickness of concrete cover is 5cm.
Described crag Simple Crane Girder 1 is provided with shrinkage joint 16 with Rock Crane Rail Support 5 junction, and the width at shrinkage joint 16 is 1.5cm.
L-600 type polyethylene from high pressure process closed-cell foam plate is filled with in described shrinkage joint 16.It is large that this cystosepiment has density, and response rate is high, and have independently bubble structure, absorptivity is low, and anti-permeability is good, and acidproof, alkaline-resisting, salt, wet goods organic solvent corrosion, ageing-resistant performance is excellent, does not trickle during high temperature, not embrittlement during low temperature.The various concrete such as river course, channel, dykes and dams, harbour, harbour, underground Yong Dong, airport, bridge, bank protection, underground construction, municipal road can be widely used in rise and sew up tailor's journey.
Described system supporting anchor pole 9 adopts diameter to be 28mm, and length is the grouting rock bolt of 6m or 9m, and between layout, array pitch is 1.5m, and anchor pole exposes 10cm, interlaced arrangement.And need 1m be exposed at crag Simple Crane Girder 1 and crag column 2 place system supporting anchor pole 9, and entering within the scope of rock 2m to lay one pitch.The reinforcing bar model of system supporting anchor pole 9 is HRB335.
Described tension anchor pole 10 adopts diameter to be the grouting rock bolt of 36mm, and length is 9 ~ 12m, and arrangement pitch is 0.75m, and entering the rock degree of depth is 7.2 ~ 10.2m, is entering within the scope of rock degree of depth 2m to lay one pitch, and stagger when constructing upper system anchor pole 9.The reinforcing bar model of tension anchor pole 10 is HRB400.
Construction sequence of the present invention is further illustrated as follows below in conjunction with accompanying drawing 1-4:
The first step, the factory of excavation main building and attached cavern becomes access tunnel 3;
Second step, arranges pneumatically placed concrete and system supporting anchor pole 9; Wherein, Rock Crane Rail Support 5, crag Simple Crane Girder 1 and crag column 2 scope not sprayed mortar; Decreasing concrete use amount when meeting its working strength like this, reducing construction cost.
3rd step, arranges Rock Crane Rail Support 5, crag Simple Crane Girder 1, tension anchor pole 10 and Rock Crane Rail Support pressurized anchor pole;
4th step, the reinforcing bar of colligation Rock Crane Rail Support 5, crag Simple Crane Girder 1 and crag column 2;
5th step, embedded iron stool;
6th step, builds Rock Crane Rail Support 5, crag Simple Crane Girder 1 and crag column 2 concrete;
7th step, lays bridge machine rail 14 after the concrete in the 6th step reaches the age of concrete and leveling installs, and finally builds the second stage concrete 15 at crag Simple Crane Girder 1 top.

Claims (10)

1. a underground workshop factory becomes access tunnel structure, it is characterized in that: comprise and be arranged at crag Simple Crane Girder (1) and the crag column (2) that factory becomes access tunnel (3) position, described crag Simple Crane Girder (1) is positioned at crag column (2) top, crag Simple Crane Girder (1) both sides are provided with Rock Crane Rail Support (5), described crag Simple Crane Girder (1) is upper is provided with row's tension anchor pole (10) by crag side, described crag column (2) above arranges column joint bar (8) by crag side and is connected with country rock, described crag column (2) lower end is provided with column concrete foundation (6), and basic joint bar (17) is set in column concrete foundation (6) bottom, described crag Simple Crane Girder (1) is also provided with system supporting anchor pole (9) by crag side.
2. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: described crag column (2) top and crag Simple Crane Girder (1) rest base are embedded with iron plate stool.
3. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: described crag Simple Crane Girder (1) top is provided with second stage concrete (15).
4. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: described crag column (2) lower end is also provided with concrete floor (4), and concrete floor (4) is provided with gutter (7).
5. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: described crag Simple Crane Girder (1) and Rock Crane Rail Support (5) junction are provided with shrinkage joint (16), and the width of shrinkage joint (16) is 1.5cm.
6. a kind of underground workshop factory according to claim 5 becomes access tunnel structure, it is characterized in that: be filled with L-600 type polyethylene from high pressure process closed-cell foam plate in described shrinkage joint (16).
7. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: adopt four sides weld all around between the iron plate stool that described crag column (2) top is pre-buried and the pre-buried iron plate stool of crag Simple Crane Girder (1) rest base, weld bead height 8mm; Embedded iron stool adopts thickness to be that to arrange diameter be that the dowel of 20mm welds for the steel plate and two of 20mm, array pitch 20mm.
8. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: column joint bar (8) diameter that described crag column (2) is arranged by crag side is 28mm, length is 4.5m, arrangement pitch is 1.0 × 1.0m, and the concrete degree of depth that column joint bar (8) inserts crag column (2) is 1m; The diameter of described basic joint bar is 28mm, and length is 4.5m, and arrangement pitch is 0.6 × 0.6m, and the length of exposed parts is 1m.
9. a kind of underground workshop factory according to claim 1 becomes access tunnel structure, it is characterized in that: described system supporting anchor pole (9) adopts diameter to be 28mm, length is the grouting rock bolt of 6m or 9m, between layout, array pitch is 1.5m, anchor pole exposes 10cm, interlaced arrangement, and expose 1m at crag Simple Crane Girder (1) and crag column (2) place system supporting anchor pole (9), and entering within the scope of rock 2m to lay one pitch; Described tension anchor pole (10) adopts diameter to be the grouting rock bolt of 36mm, and length is 9 ~ 12m, and arrangement pitch is 0.75m, and entering the rock degree of depth is 7.2 ~ 10.2m, is entering within the scope of rock degree of depth 2m to lay one pitch.
10. underground workshop factory becomes an access tunnel construction method, it is characterized in that: comprise following method step:
The first step, the factory of excavation main building and attached cavern becomes access tunnel (3);
Second step, arranges pneumatically placed concrete and system supporting anchor pole (9); Wherein, Rock Crane Rail Support (5), crag Simple Crane Girder (1) and crag column (2) scope not sprayed mortar;
3rd step, arranges Rock Crane Rail Support (5), crag Simple Crane Girder (1), tension anchor pole (10) and Rock Crane Rail Support pressurized anchor pole;
4th step, the reinforcing bar of colligation Rock Crane Rail Support (5), crag Simple Crane Girder (1) and crag column (2);
5th step, embedded iron stool;
6th step, builds Rock Crane Rail Support (5), crag Simple Crane Girder (1) and crag column (2) concrete;
7th step, lays bridge machine rail (14) after the concrete in the 6th step reaches the age of concrete and leveling installs, and finally builds the second stage concrete (15) at crag Simple Crane Girder (1) top.
CN201510650351.1A 2015-10-10 2015-10-10 A kind of underground workshop factory becomes access tunnel structure and its construction method Active CN105350503B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107905805A (en) * 2017-11-15 2018-04-13 中国电建集团华东勘测设计研究院有限公司 One kind ensures that underground power house machine hole dividing pier excavates molding strengthening supporting method and underground power house machine hole dividing pier structure
CN110107323A (en) * 2019-05-10 2019-08-09 中国电建集团华东勘测设计研究院有限公司 It is a kind of elder generation hole after wall intersect hole excavation supporting construction method
CN110258470A (en) * 2019-06-24 2019-09-20 中国葛洲坝集团建设工程有限公司 A kind of large-sized concrete bracket rapid construction device and method
CN112324198A (en) * 2020-10-27 2021-02-05 中国电建集团成都勘测设计研究院有限公司 Structure of wall-separated type constructional column
CN113863675A (en) * 2021-10-26 2021-12-31 中国葛洲坝集团机电建设有限公司 Concrete construction method for main transformer tunnel structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU527515A1 (en) * 1974-12-12 1976-09-05 Ордена Трудового Красного Знамени Научно-Исследовательский Институт Оснований И Подземных Сооружений Им. Н.М.Герсеванова A device for crushing into the ground of a mine shaft
CN204185834U (en) * 2014-11-05 2015-03-04 中国电建集团成都勘测设计研究院有限公司 Rock Bolt Beam in Underground Powerhouse at Hydropower Station levels steel work abutment wall system
CN204608736U (en) * 2014-12-10 2015-09-02 中国电建集团贵阳勘测设计研究院有限公司 A kind of power plant building be arranged in solution cavity
CN205062775U (en) * 2015-10-10 2016-03-02 中国电建集团贵阳勘测设计研究院有限公司 Into factory's traffic hole structure is crossed to power station underground factory building rock -wall crane girder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU527515A1 (en) * 1974-12-12 1976-09-05 Ордена Трудового Красного Знамени Научно-Исследовательский Институт Оснований И Подземных Сооружений Им. Н.М.Герсеванова A device for crushing into the ground of a mine shaft
CN204185834U (en) * 2014-11-05 2015-03-04 中国电建集团成都勘测设计研究院有限公司 Rock Bolt Beam in Underground Powerhouse at Hydropower Station levels steel work abutment wall system
CN204608736U (en) * 2014-12-10 2015-09-02 中国电建集团贵阳勘测设计研究院有限公司 A kind of power plant building be arranged in solution cavity
CN205062775U (en) * 2015-10-10 2016-03-02 中国电建集团贵阳勘测设计研究院有限公司 Into factory's traffic hole structure is crossed to power station underground factory building rock -wall crane girder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107905805A (en) * 2017-11-15 2018-04-13 中国电建集团华东勘测设计研究院有限公司 One kind ensures that underground power house machine hole dividing pier excavates molding strengthening supporting method and underground power house machine hole dividing pier structure
CN107905805B (en) * 2017-11-15 2024-04-26 中国电建集团华东勘测设计研究院有限公司 Reinforced supporting method for guaranteeing excavation molding of machine pit partition piers of underground powerhouse and machine pit partition pier structure of underground powerhouse
CN110107323A (en) * 2019-05-10 2019-08-09 中国电建集团华东勘测设计研究院有限公司 It is a kind of elder generation hole after wall intersect hole excavation supporting construction method
CN110107323B (en) * 2019-05-10 2020-12-29 中国电建集团华东勘测设计研究院有限公司 Excavation and support construction method for first-hole and later-wall type crossed hole
CN110258470A (en) * 2019-06-24 2019-09-20 中国葛洲坝集团建设工程有限公司 A kind of large-sized concrete bracket rapid construction device and method
CN110258470B (en) * 2019-06-24 2024-03-12 中国葛洲坝集团建设工程有限公司 Quick construction device and method for large-scale concrete bracket
CN112324198A (en) * 2020-10-27 2021-02-05 中国电建集团成都勘测设计研究院有限公司 Structure of wall-separated type constructional column
CN113863675A (en) * 2021-10-26 2021-12-31 中国葛洲坝集团机电建设有限公司 Concrete construction method for main transformer tunnel structure

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