CN102877444B - A kind of Cavity Construction bridge machine rail beam adopts the method for bracing members steel track beam - Google Patents
A kind of Cavity Construction bridge machine rail beam adopts the method for bracing members steel track beam Download PDFInfo
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- CN102877444B CN102877444B CN201210340051.XA CN201210340051A CN102877444B CN 102877444 B CN102877444 B CN 102877444B CN 201210340051 A CN201210340051 A CN 201210340051A CN 102877444 B CN102877444 B CN 102877444B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
Cavity Construction bridge machine rail beam adopts a method for bracing members steel track beam, comprises the following steps: one, on the crag of underground chamber both sides, horizontal bars and bracing members bottom level rod member on bracing members are buried in punching underground; Two, on bracing members, install bracing members diagonal brace between horizontal bars and bracing members bottom level rod member, the bottom of bracing members diagonal brace is near crag, and top is away from crag; Three, leveling track girder steel is set up; Four, rail is installed; The Fast Installation of Cavity Construction bridge machine rail beam is realized by above-mentioned steps.The present invention instead of conventional concrete bracket rail beam by bracing members track girder steel, and construction bridge machine and carrying force thereof are passed to bracing members diagonal brace and crag by track girder steel.The method can simplify cavern's physique structure, is convenient to cavern excavation, accelerates the speed of application of cavern's structure and bridge machine.After bridge machine is finished using and removed simultaneously, track girder steel can be recycled.
Description
Technical field
The present invention relates to the construction method that a kind of Cavity Construction bridge machine rail beam adopts bracing members steel track beam, particularly relate to a kind of employing is imbedded in crag, part is suspended in outside simultaneously triangle steel and support force structure as the technology of bridge machine steel track beam bottom support and construction method.
Background technology
Water power underground chamber structure is as in the project constructions such as vertical shaft, lift because the large scale structures such as vertical shaft steel pipe need to install temporary construction bridge machine, install and service requirement for meeting bridge machine, concrete bracket bridge machine rail beam is designed with in general cavern structure, for convenience of the construction of bridge machine concrete track beam, reduce the construction framed bent amount of setting up, take at cavern's structural excavation to certain elevation, suspend cavern's structural excavation, carry out the concrete construction of bridge machine rail beam.Because bridge machine rail beam concrete construction engineering amount is comparatively large, reinforcing bar is many, construction is difficult, and the construction period is longer, comparatively large on the impact of underground chamber structural excavation, specifically as shown in Figure 2.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that Cavity Construction bridge machine rail beam adopts bracing members steel track beam, and can meet bridge machine and install, run, and construction technology is simple, speed of application is fast, reduces and affects Underground Engineering Excavation.
The technical solution adopted in the present invention is: a kind of Cavity Construction bridge machine rail beam employing is imbedded crag inner member and is made into the technology of the stressed steel support structure of triangle as bridge machine steel track beam bottom support, comprises the following steps:
One, on the crag of underground chamber, horizontal bars and bracing members bottom level rod member on bracing members are buried in punching underground, reach design strength, carry out the installation of bracing members diagonal brace after horizontal bars on the bracing members buried underground and the grouting of bracing members bottom level rod member; ;
Two, horizontal bars and bracing members bottom level rod member end points consolidation on bracing members diagonal brace and bracing members, the bottom anchoring point of bracing members diagonal brace and bracing members bottom level rod member near crag, and with the top anchoring point of horizontal bars on bracing members away from crag; Form the gusseted force structure be suspended on crag;
Three, according to the elevation of bridge machine hoisting design, both sides crag, along the certain elevation of cavern's axis direction and spacing, waits elevation to be symmetrically formed a series of gusseted force structures be suspended on crag be made up of horizontal bars, bracing members bottom level rod member, bracing members diagonal brace on bracing members; When bracing members diagonal brace is installed, first temporary fixed diagonal brace, then adjusts the elevation of horizontal bars on bracing members, and on all bracing members of two rows guaranteeing crag both sides, horizontal bars elevation is identical, then by bracing members diagonal brace firm welding, forms stable triangular steel and supports;
Four, horizontal bars is set up leveling track girder steel on bracing members, rail installed by track girder steel;
During erection steel track beam, adopt gad pad by after the leveling of track girder steel, then itself and bracing members are connected firmly; Realize hanging Cavity Construction bridge machine traveling steel rail duct device on crag by above-mentioned steps.
A kind of Cavity Construction bridge machine rail beam employing provided by the invention is imbedded crag inner member and is made into the technology of the stressed steel support structure of triangle as bridge machine steel track beam bottom support, construction bridge machine and carrying force thereof are passed to steel support structure and crag by track girder steel, alternative underground chamber crag concrete bracket supporting track beam technology.
Contrast with Fig. 1 cavern structure by Fig. 2 of prior art, this technology can simplify cavern's physique structure, is convenient to cavern excavation, can reduce bridge machine rail superior portion excavation and support engineering quantity simultaneously, accelerate the speed of application of cavern's structure and bridge machine, for bridge machine runs the condition of providing early.After bridge machine is finished using and is removed simultaneously, can by the recycling of track girder steel.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is that underground chamber crag hangs three-legged structure bracing members steel track beam structural representation.
Fig. 2 is underground chamber crag concrete bracket supporting track girder construction schematic diagram in prior art.
In figure: horizontal bars 1 on bracing members, bracing members bottom level rod member 2, bracing members diagonal brace 3, track girder steel 4, rail 5, construction bridge machine 6, concrete bracket 7, suspension cable 8.
Detailed description of the invention
Cavity Construction bridge machine rail beam adopts a method for bracing members steel track beam, it is characterized in that comprising the following steps: one, on the crag of underground chamber both sides, horizontal bars 1 and bracing members bottom level rod member 2 on bracing members are buried in punching underground; In this step, according to the stressing conditions of track girder steel 4, calculate the power that on bracing members, horizontal bars 1 and bracing members bottom level rod member 2 bear, determine the specifications and models of horizontal bars 1 and bracing members bottom level rod member 2 on bracing members, the depth of burying and spacing.
When underground cavern excavation is to installation bridge machine rail beam design attitude, surveying and locating determination punch position, on crag punching bury underground adopt round steel pipe or shaped steel bracing members on horizontal bars 1 and bracing members bottom level rod member 2, the depth of burying will meet force request, and protruded length wants the requirement that can meet attachment rail beam; Burying the grouting of rod member anchor hole underground must be closely knit; According to round steel pipe, in steel pipe, palpus slurry placement is closely knit.
Two, on bracing members, install bracing members diagonal brace 3 between horizontal bars 1 and bracing members bottom level rod member 2, the bottom of bracing members diagonal brace 3 is near crag, and top is away from crag; In this step, according to rail beam force design, calculate the specifications and models determining bracing members diagonal brace 3; Spacing on the bracing members that measurement has been buried underground between horizontal bars 1 and bracing members bottom level rod member 2, calculates the length determining bracing members diagonal brace 3;
After horizontal bars 1 on the bracing members buried underground and the grouting of bracing members bottom level rod member 2, reach design strength, carry out the installation of bracing members diagonal brace 3.Blanking in bracing members diagonal brace 3 processing factory, Site Welding is installed.
Three, leveling track girder steel 4 is set up; In this step, bracing members diagonal brace 3 installs, and track girder steel 4 lifting is put in place with mobile crane; After steel track beam lifting puts in place, adopt gad pad by after the leveling of track girder steel, then by its be connected firmly with bracing members diagonal brace 3.
Four, rail 5 is installed on steel track beam; The construction of this step is identical with other track installation.
Realize hanging Cavity Construction bridge machine traveling steel rail duct device on crag by above-mentioned steps.
In step one, according to the stressing conditions of track girder steel, calculate the power that on bracing members, horizontal bars and bracing members bottom level rod member bear, determine the specifications and models of horizontal bars and bracing members bottom level rod member on bracing members, the depth of burying and spacing.
In step 2, when bracing members diagonal brace is installed, first temporary fixed diagonal brace, then the elevation of horizontal bars on bracing members is adjusted, on all bracing members of two rows guaranteeing crag both sides, horizontal bars elevation is identical, then by bracing members diagonal brace firm welding, forms stable triangular steel and supports.
In step 3, during erection steel track beam, adopt gad pad by after the leveling of track girder steel, then itself and bracing members are connected firmly.
Claims (1)
1. adopt a method for bracing members steel track beam bottom Cavity Construction bridge machine rail beam, it is characterized in that comprising the following steps:
One, on the crag of underground chamber, horizontal bars on bracing members (1) and bracing members bottom level rod member (2) are buried in punching underground, after horizontal bars (1) on the bracing members buried underground and bracing members bottom level rod member (2) grouting, reach design strength, carry out the installation of bracing members diagonal brace (3);
Two, bracing members diagonal brace (3) and horizontal bars (1) and bracing members bottom level rod member (2) end points consolidation on bracing members, the bottom anchoring point of bracing members diagonal brace (3) and bracing members bottom level rod member (2) near crag, and with the top anchoring point of horizontal bars on bracing members (1) away from crag; Form the gusseted force structure be suspended on crag;
Three, according to the elevation of bridge machine hoisting design, both sides crag, along the certain elevation of cavern's axis direction and spacing, waits elevation to be symmetrically formed a series of gusseted force structures be suspended on crag be made up of horizontal bars on bracing members (1), bracing members bottom level rod member (2), bracing members diagonal brace (3);
When bracing members diagonal brace is installed, first temporary fixed diagonal brace, then adjusts the elevation of horizontal bars on bracing members, and on all bracing members of two rows guaranteeing crag both sides, horizontal bars elevation is identical, then by bracing members diagonal brace firm welding, forms stable triangular steel and supports;
Four, horizontal bars (1) upper erection leveling track girder steel (4) on bracing members, track girder steel (4) is installed rail (5);
During erection steel track beam, adopt gad pad by after the leveling of track girder steel, then itself and bracing members are connected firmly;
Realize hanging Cavity Construction bridge machine traveling steel rail duct device on crag by above-mentioned steps.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210340051.XA CN102877444B (en) | 2012-09-14 | 2012-09-14 | A kind of Cavity Construction bridge machine rail beam adopts the method for bracing members steel track beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210340051.XA CN102877444B (en) | 2012-09-14 | 2012-09-14 | A kind of Cavity Construction bridge machine rail beam adopts the method for bracing members steel track beam |
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| CN102877444A CN102877444A (en) | 2013-01-16 |
| CN102877444B true CN102877444B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104047432B (en) * | 2014-06-13 | 2016-08-17 | 长江勘测规划设计研究有限责任公司 | A kind of underground nuclear power station reactor cavern containment dome installation 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676876A (en) * | 2005-04-30 | 2005-10-05 | 太原理工大学 | Spiral coal-loader type underground coal storage device |
| CN101655001A (en) * | 2009-06-03 | 2010-02-24 | 中国水利水电第七工程局有限公司 | Underground workshop rock wall beam trench steel tube drilling sample frame and construction method thereof |
| CN201460910U (en) * | 2009-07-27 | 2010-05-12 | 中铁二局股份有限公司 | Dedicated lining jumbo for open-excavated tunnels |
| CN201473966U (en) * | 2009-09-08 | 2010-05-19 | 中国水电顾问集团北京勘测设计研究院 | Novel paving base structure of L type suspension rigid foundation for rocky crane beams in underground plants |
-
2012
- 2012-09-14 CN CN201210340051.XA patent/CN102877444B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676876A (en) * | 2005-04-30 | 2005-10-05 | 太原理工大学 | Spiral coal-loader type underground coal storage device |
| CN101655001A (en) * | 2009-06-03 | 2010-02-24 | 中国水利水电第七工程局有限公司 | Underground workshop rock wall beam trench steel tube drilling sample frame and construction method thereof |
| CN201460910U (en) * | 2009-07-27 | 2010-05-12 | 中铁二局股份有限公司 | Dedicated lining jumbo for open-excavated tunnels |
| CN201473966U (en) * | 2009-09-08 | 2010-05-19 | 中国水电顾问集团北京勘测设计研究院 | Novel paving base structure of L type suspension rigid foundation for rocky crane beams in underground plants |
Non-Patent Citations (1)
| Title |
|---|
| 岩壁吊车梁动力特性及响应的实测研究;刘亚军;《水力发电》;20070630(第06期);第35-38页 * |
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