CN103074874B - Diversion tunnel arch concrete lining steel template support and installation method - Google Patents

Diversion tunnel arch concrete lining steel template support and installation method Download PDF

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Publication number
CN103074874B
CN103074874B CN201310006726.1A CN201310006726A CN103074874B CN 103074874 B CN103074874 B CN 103074874B CN 201310006726 A CN201310006726 A CN 201310006726A CN 103074874 B CN103074874 B CN 103074874B
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CN
China
Prior art keywords
support
diversion tunnel
steel template
characters
tunnel arch
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CN201310006726.1A
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Chinese (zh)
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CN103074874A (en
Inventor
张建花
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葛洲坝集团第五工程有限公司
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Priority to CN201310006726.1A priority Critical patent/CN103074874B/en
Publication of CN103074874A publication Critical patent/CN103074874A/en
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    • 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
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels

Abstract

A diversion tunnel arch concrete lining steel template support is installed on the lower part of an arch support of a diversion tunnel arch to be connected with the upper parts of a plurality of splayed poles, and the lower parts of the splayed poles are connected with a plurality of template pulling ribs which are fixedly installed on the side wall of a diversion tunnel; and the upper half parts of the splayed poles are reinforced through at least one transverse pole. The invention relates to an installation method of the diversion tunnel arch concrete lining steel template support, and the method comprises the following steps of (1) installing reinforcing steel bars, and placing longitudinal channel steel for installing the arch support is welded on the reinforcing steel bars; (2) assembling the steel template support; and (3) determining the group quantity of the steel template supports and the distance among each group of the steel template supports. The diversion tunnel arch concrete lining steel template support can be repeatedly circulated to use and convenient and rapid to install and disassemble, the materials can be saved, the construction quality can be guaranteed, and the construction safety can be improved. The invention also provides the installation method of the steel template support, so that rapidness in installation can be realized, and the working efficiency can be increased.

Description

Diversion tunnel arch concrete-liner steel template support and mounting method

Technical field

The present invention relates to a kind of for the falsework in hydraulic engineering construction temporary construction and mounting method, especially a kind of diversion tunnel arch concrete-liner steel template support and mounting method.

Background technology

At Construction for Hydroelectric Project building field, the Diversion Tunnel in power station is an interim engineering construction, and engineering has very high requirement to the compactness of lining concrete, planeness and fineness, and often the duration very urgent, under the premise that security is guaranteed, the engineering of lining cutting should be simplified as far as possible.The concrete-liner layering of Diversion Tunnel is divided into base plate, side wall, crown three part, the wherein concrete-liner most critical of crown, is related to that can the duration complete on schedule, can quality ensure.And the key procedure of the concrete-liner of crown is exactly formwork erection, it plays a part very important, so reasonably the design of falsework is particularly important.

China is the supporting way adopting full hall falsework at present more, supporting form has full wood to support, also steel wood is had to support used in combination, but it is large that Problems existing is material usage, dismounting difficulty is large, the formwork erection time is long, disposable input cost is high, potential safety hazard is many, and can not ensure concrete pouring quality.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of diversion tunnel arch concrete-liner steel template support, overcome the shortcoming adopting full hall falsework, repeatedly can have enough to meet the need use, install and remove convenient and swift, and can material be saved, ensure that construction quality, increase construction safety degree, present invention also offers the mounting method of this steel template support, achieve Fast Installation, improve work efficiency, reduce cost.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of diversion tunnel arch concrete-liner steel template support, the bottom being installed on the crown support of diversion tunnel arch is supportted top with the many Eight characters and is connected, and many Eight characters support bottoms are connected with the many form braces being fixedly installed in Diversion Tunnel side wall.

The many Eight characters support first halves are reinforced by least one stull.

Crown support is made up of a Pin support and the 2nd Pin support, and adopt alignment pin to lock between a Pin support and the 2nd Pin support, and adopt cross clip to fix, the lateral surface of crown support is welded with steel plate.

One Pin support and the 2nd Pin support adopt steel pipe and reinforcement welding to make.

The Eight characters supports into "eight" shape, and bottom and the many Eight characters of crown support are supportted top and are connected by perfect after-sales service.

Eight characters support is connected by perfect after-sales service with between stull.

A mounting method for above-mentioned diversion tunnel arch concrete-liner steel template support, the method comprises the following steps:

1) longitudinally on two Diversion Tunnel side walls, squeeze into reinforcing bar on the base of crown support along Diversion Tunnel, then on reinforcing bar, weld the longitudinal channel-section steel for laying crown support;

2) steel template support is assembled: steel template support is supportted by crown support, the Eight characters and stull forms;

3) the several length according to diversion tunnel arch concrete-liner of the group of steel template support is determined, the spacing between each group steel template support is rationally determined by checking computations.

In step 1), longitudinal channel-section steel and reinforcing bar adopt spot welding mode to be connected.

Step 2) in, bottom and the many Eight characters of crown support are supportted top and are connected by perfect after-sales service, the bottom of Eight characters support is connected with the many form braces being fixedly installed in Diversion Tunnel side wall, the bottom that the Eight characters supports directly is packed on form brace, the angle that the angle of form brace supports according to the Eight characters adjusts arbitrarily, utilize stull to reinforce at the first half of Eight characters support, Eight characters support is connected with adopting perfect after-sales service between stull.

In step 3), longitudinally connected by steel pipe between each group steel template support, and fixed by perfect after-sales service.

Diversion tunnel arch concrete-liner steel template support provided by the invention and mounting method, beneficial effect is as follows:

1, be made up of crown support and Eight characters support, and by steel template support that stull is reinforced, employing combined type connects, easy accessibility, structure is simple, overcome the shortcoming adopting full hall falsework, have enough spaces to be open to traffic in the below of steel bracket, be conducive to side wall and crown lining cutting cross-operation simultaneously.

2, crown support, Eight characters support and stull adopt perfect after-sales service to connect, and adopt cross clip to connect, effectively ensure that globality and the stability of steel bracket, also facilitate the dismounting work in later stage between two Pin supports of crown support.

3, making material model is few, making is simple, and repeatedly can have enough to meet the need use, has saved cost, has reduced input.

4, saving of labor, save time, material saving, easy construction, safe and reliable; Can freely assemble, flexible operation, of a tightly knit structure, firm; Install rapidly, improve workmanship and work efficiency, improve working environment.

5, the steel plate that the side weld of crown stent outer connects makes crown support firmly be placed on longitudinal channel-section steel of Diversion Tunnel side wall, and next step combination being beneficial to steel template support is installed.

6, stull serves the effect strengthening stability and globality, increase Rigidity and strength to steel template support.

7, adopt alignment pin to lock between a Pin support and the 2nd Pin support, and adopt cross clip to fix, serve the effect strengthening crown support globality and stability.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described:

Fig. 1 is the structural representation of diversion tunnel arch concrete-liner steel template support of the present invention;

Fig. 2 is the structural representation of crown support of the present invention;

Fig. 3 is the enlarged drawing at Figure 1A place.

Detailed description of the invention

As shown in Figure 1, Figure 2 and Figure 3, a kind of diversion tunnel arch concrete-liner steel template support, the bottom being installed on the crown support 2 of diversion tunnel arch 14 is supportted 3 tops with the many Eight characters and is connected, and the many Eight characters support 3 bottoms and are connected with the many form braces 8 being fixedly installed in Diversion Tunnel side wall 15.

The many Eight characters are supportted 3 first halves and are reinforced by least one stull 4.

Crown support 2 is made up of a Pin support 2-1 and the 2nd Pin support 2-2, alignment pin 1 is adopted to lock between one Pin support 2-1 and the 2nd Pin support 2-2, and adopt cross clip 7 to fix, the globality of crown support 2 and the effect of stability is strengthened to play, the lateral surface of crown support 2 is welded with steel plate 12, make crown support firmly be placed on longitudinal channel-section steel of Diversion Tunnel side wall, next step combination being beneficial to steel template support is installed.

One Pin support 2-1 and the 2nd Pin support 2-2 adopts steel pipe 10 and reinforcing bar 11 welding to make.

Eight characters support 3 one-tenth "eight" shape, bottom and the many Eight characters of crown support 2 are supportted 3 tops and are connected by perfect after-sales service 6.

Eight characters support 3 is connected by perfect after-sales service 6 with between stull 4.

A mounting method for above-mentioned diversion tunnel arch concrete-liner steel template support, the method comprises the following steps:

1) longitudinally on Diversion Tunnel side wall 15, squeeze into reinforcing bar 13 on the base of crown support 2 along Diversion Tunnel, then on reinforcing bar 13, weld the longitudinal channel-section steel 9 for laying crown support 2;

2) steel template support is assembled: steel template support is made up of crown support 2, Eight characters support 3 and stull 4;

3) the several length according to diversion tunnel arch concrete-liner of the group of steel template support is determined, the spacing between each group steel template support is rationally determined by checking computations.

In step 1), longitudinal channel-section steel 9 and reinforcing bar 13 adopt spot welding mode to be connected, and channel-section steel 9 mainly plays load-bearing effect to crown support 2, and the combination being beneficial to steel template support is installed.

Step 2) in, bottom and the many Eight characters of crown support 2 are supportted 3 tops and are connected by perfect after-sales service 6, the bottom of Eight characters support 3 is connected with the many form braces 8 being fixedly installed in Diversion Tunnel side wall 15, the bottom of Eight characters support 3 is directly packed on form brace 8, the angle of form brace 8 adjusts arbitrarily according to the angle of Eight characters support 3, stull 4 is utilized to reinforce at the first half of Eight characters support 3, Eight characters support 3 is connected with adopting perfect after-sales service 6 between stull 4, and stull 4 is mainly played and play a part to strengthen stability and globality, increase Rigidity and strength to steel template support.

In step 3), longitudinally connected by steel pipe 5 between each group steel template support, and fixed by perfect after-sales service 6.

Claims (7)

1. a diversion tunnel arch concrete-liner steel template support, it is characterized in that: the bottom being installed on the crown support (2) of diversion tunnel arch (14) is supportted (3) top and is connected with the many Eight characters, many Eight characters support (3) bottoms are connected with the many form braces (8) being fixedly installed in Diversion Tunnel side wall (15); Many Eight characters support (3) first halves are reinforced by least one stull (4); Eight characters support (3) becomes "eight" shape, and the bottom of crown support (2) is supportted (3) top and is connected by perfect after-sales service (6) with the many Eight characters;
A mounting method for above-mentioned diversion tunnel arch concrete-liner steel template support, the method comprises the following steps:
1) longitudinally on two Diversion Tunnel side walls (15), squeeze into reinforcing bar (13) on the base of crown support (2) along Diversion Tunnel, then be used in the upper welding of reinforcing bar (13) the longitudinal channel-section steel (9) laying crown support (2);
2) steel template support is assembled: steel template support supports (3) by crown support (2), the Eight characters and stull (4) forms;
3) the several length according to diversion tunnel arch concrete-liner of the group of steel template support is determined, the spacing between each group steel template support is rationally determined by checking computations.
2. diversion tunnel arch concrete-liner steel template support according to claim 1, it is characterized in that: crown support (2) is made up of a Pin support (2-1) and the 2nd Pin support (2-2), alignment pin (1) is adopted to lock between one Pin support (2-1) and the 2nd Pin support (2-2), and adopting cross clip (7) to fix, the lateral surface of crown support (2) is welded with steel plate (12).
3. diversion tunnel arch concrete-liner steel template support according to claim 2, is characterized in that: a Pin support (2-1) and the 2nd Pin support (2-2) adopt steel pipe (10) and reinforcing bar (11) welding to make.
4. diversion tunnel arch concrete-liner steel template support according to claim 1, is characterized in that: Eight characters support (3) is connected by perfect after-sales service (6) with between stull (4).
5. diversion tunnel arch concrete-liner steel template support according to claim 1, is characterized in that: in step 1), and longitudinal channel-section steel (9) adopts spot welding mode to be connected with reinforcing bar (13).
6. diversion tunnel arch concrete-liner steel template support according to claim 1 or 5, it is characterized in that: step 2) in, the bottom of crown support (2) is supportted (3) top and is connected by perfect after-sales service (6) with the many Eight characters, the bottom of Eight characters support (3) is connected with the many form braces (8) being fixedly installed in Diversion Tunnel side wall (15), the bottom of Eight characters support (3) is directly packed on form brace (8), the angle of form brace (8) adjusts arbitrarily according to the angle of Eight characters support (3), stull (4) is utilized to reinforce at the first half of Eight characters support (3), Eight characters support (3) is connected with adopting perfect after-sales service (6) between stull (4).
7. diversion tunnel arch concrete-liner steel template support according to claim 1 or 5, is characterized in that: in step 3), is longitudinally connected, and fixed by perfect after-sales service (6) between each group steel template support by steel pipe (5).
CN201310006726.1A 2013-01-09 2013-01-09 Diversion tunnel arch concrete lining steel template support and installation method CN103074874B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1092493A (en) * 1994-02-23 1994-09-21 陆建衡 Oblique guy (stay) rigid frame type long span support members
KR100876546B1 (en) * 2007-02-14 2008-12-31 하철용 arched steel formwork
CN201254774Y (en) * 2008-08-28 2009-06-10 温州建设集团公司 Steel frame and concrete column combination heavy frame
CN102733827A (en) * 2012-06-29 2012-10-17 湖南省交通规划勘察设计院 Tunnel arch exchanging construction method and construction structure in tunnel arch exchanging construction
KR101216437B1 (en) * 2011-07-07 2012-12-28 한신공영 주식회사 Eco-friendly tunneling method
CN203066043U (en) * 2013-01-09 2013-07-17 葛洲坝集团第五工程有限公司 Diversion tunnel top arch concrete lining steel formwork support

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1092493A (en) * 1994-02-23 1994-09-21 陆建衡 Oblique guy (stay) rigid frame type long span support members
KR100876546B1 (en) * 2007-02-14 2008-12-31 하철용 arched steel formwork
CN201254774Y (en) * 2008-08-28 2009-06-10 温州建设集团公司 Steel frame and concrete column combination heavy frame
KR101216437B1 (en) * 2011-07-07 2012-12-28 한신공영 주식회사 Eco-friendly tunneling method
CN102733827A (en) * 2012-06-29 2012-10-17 湖南省交通规划勘察设计院 Tunnel arch exchanging construction method and construction structure in tunnel arch exchanging construction
CN203066043U (en) * 2013-01-09 2013-07-17 葛洲坝集团第五工程有限公司 Diversion tunnel top arch concrete lining steel formwork support

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DM10顶模台车在黑河水利枢纽工程中的应用;舒建国等;《陕西水利》;20020831(第04期);第44-45页 *

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