CN101824814B - Method for plugging diversion tunnel without cutoff by using cast-in-place reinforced concrete gate and the gate - Google Patents

Method for plugging diversion tunnel without cutoff by using cast-in-place reinforced concrete gate and the gate Download PDF

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Publication number
CN101824814B
CN101824814B CN201010176721XA CN201010176721A CN101824814B CN 101824814 B CN101824814 B CN 101824814B CN 201010176721X A CN201010176721X A CN 201010176721XA CN 201010176721 A CN201010176721 A CN 201010176721A CN 101824814 B CN101824814 B CN 101824814B
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gate
steel
shutoff
construction
diversion
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CN101824814A (en
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张小华
董宇宪
闵军
徐再厚
方建水
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China Gezhouba Group No 1 Engineering Co Ltd
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China Gezhouba Group No 1 Engineering Co Ltd
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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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a method for plugging a diversion tunnel without cutoff by using a cast-in-place reinforced concrete gate and the gate. The method comprises the following construction steps of: constructing a water inlet building; manufacturing a water blocking diversion steel gate, a diversion pipe and a diversion hole plugging steel gate; hoisting the construction water blocking diversion steel gate into a corresponding gate groove to block water, and then forming a gate diversion hole and communicating the gate diversion hole and the diversion pipe; hoisting the diversion hole plugging steel gate onto the construction water blocking diversion steel gate; construing an upright formwork; performing pouring construction; and assembling an opening-closing bracket, and operating a guide chain pulley block on the opening-closing bracket to make the diversion hole plugging steel gate plug the diversion hole. The method has the advantages of small plugging project amount, short construction period, lower correspondingly construction expense compared with steel plug plugging, and economy and practicability.

Description

The method and the gate of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using
Technical field
The present invention relates to the method for blocking and the gate at diversion tunnel water inlet hole in a kind of Hydraulic and Hydro-Power Engineering, particularly a kind of method and gate of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using.
Background technology
In diversion tunnel shutoff construction, reach following construction requirement: (1) diversion tunnel water inlet hole shutoff, should can satisfy the retaining essential condition in the in kind vivid progress of Hydraulic and Hydro-Power Engineering dam comprehensively and require and could construct.One is chosen in finishes December in dry season~February, and the construction period is shorter, and the shutoff construction must guarantee safe and reliable; (2) diversion tunnel water inlet building should satisfy designed standard for flood control and the overcurrent requirement of corresponding discharge in flood season construction period, does not damage when carrying out shutoff at diversion tunnel water inlet hole; (3) diversion tunnel water inlet hole is wanted and can should carried out each procedure construction of reinforced concrete gate shutoff under the situation that river continues to flow driedly; (4) after the diversion tunnel water inlet hole shutoff, the plug section is met overproof flood in the construction period in diversion tunnel, and the cast-in-situ steel reinforced concrete gate can bear the water pressure of dam upstream institute water storage level, and percolating water phenomenon can not occur; (5) reinforced concrete gate after the diversion tunnel water inlet hole shutoff is not considered to bear water pressure when not reaching 28 days intensity.
In the shutoff construction of Hydraulic and Hydro-Power Engineering diversion tunnel water inlet hole, the method of taking at present is after the diversion tunnel excavation is finished, at first finish concreting, shutoff steel gate and the headstock gear fabrication and installation of water inlet headstock gear framed bent and water inlet building, then diversion tunnel overcurrent in the construction period.When shutoff need be carried out in diversion tunnel water inlet hole, open and close the steel gate by the headstock gear on the headstock gear framed bent, by the steel gate that the diversion tunnel whole shutoff in hole of intaking are tight.The characteristics of steel gate shutoff are to continue to flow, can finish at any time lock shutoff down at diversion tunnel, safe and reliable, but gate plugging structure concreting engineering quantity is big, steel gate volume and weight is big, it is also bigger to open and close the configuration of steel gate crane gear, and the engineering time is long, and difficulty is big, processing quality requires high, and corresponding cost is also high.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method and gate of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using, can realize plugging diversion tunnel without cutoff by using, and the shutoff area is little, and the engineering time is short, and is safe and reliable.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of method of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using, may further comprise the steps: 1) water inlet architecture construction comprises water inlet base plate, left and right sides abutment pier and the construction of upstream diversion barricade; 2) before the shutoff construction at the scene processing plant make according to construct dash water conservancy diversion steel gate, mozzle and pod apertures shutoff steel gate of plan; 3) the dash water conservancy diversion steel gate of will constructing hangs in dash in the corresponding gate slot, the gate pod apertures is installed then and is communicated with mozzle, the rise river passes the reinforced concrete gate of planning to build by mozzle and flows to the downstream, make downstream cofferdam prevent behind the gate mozzle under let out river and pour in down a chimney; 4) pod apertures shutoff steel gate is lifted on the construction dash water conservancy diversion steel gate; 5) reinforced concrete gate of planning to build is carried out the formwork erection construction; 6) reinforced concrete gate is carried out pouring construction; 7) install to open and close support, will open and close support and be connected, operate and lead the gipsy sheave group on the keying support, make pod apertures shutoff steel gate shutoff pod apertures with dash water conservancy diversion steel gate; 8) from tract steel concrete shutoff pod apertures; Realized the construction of cast-in-situ steel reinforced concrete gate and plugging diversion tunnel without cutoff by using by above-mentioned steps.
With the step of pod apertures shutoff steel gate shutoff pod apertures reinforced concrete gate build reach 28 days intensity after.
A kind of diversion tunnel cast-in-situ steel reinforced concrete gate, comprise left and right sides abutment pier and water inlet base plate, the reinforced concrete gate upstream is provided with construction dash water conservancy diversion steel gate, at least be provided with a mozzle in the reinforced concrete gate, be communicated with the pod apertures on the corresponding construction dash water conservancy diversion steel gate, pod apertures is provided with pod apertures shutoff steel gate outward.
Also be provided with the keying support on the described reinforced concrete gate, open and close support and be connected with pod apertures shutoff steel gate.
The below of described mozzle tract also is provided with downstream cofferdam.
The operating principle of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using is as follows: the shutoff diversion tunnel water inlet hole water inlet building of 1) being built after the diversion tunnel excavation is finished makes diversion tunnel upper water levelling along entering diversion tunnel during construction diversion.When shutoff was carried out at the water inlet hole, the gate slot on the abutment pier of the left and right sides was the brace foundation of cast-in-situ steel reinforced concrete gate and construction dash water conservancy diversion steel gate, bears the water pressure that gate transmits.Construction dash water conservancy diversion steel gate slot side and end bank pre-buried track embedded part still be steel gate side and bottom surface sealing seat, make that water can seepage under effect of water pressure behind the lock under the steel gate.
At first will construct when 2) shutoff is carried out at diversion tunnel water inlet hole and in gate slot, the mozzle that leads to the reinforced concrete gate downstream will be installed also under the dash water conservancy diversion steel gate, to block by the river of diversion tunnel, the rise river is by set pod apertures in the construction steel gate, the mozzle that passes in the reinforced concrete gate flows to the downstream, guarantees that each procedure of cast-in-situ steel reinforced concrete gate can be in dried construction on the ground.Set pod apertures is intake the hole section by narrowing down to the cross-section of river that has only pod apertures greatly with diversion tunnel in the steel gate, as the last shutoff section of diversion tunnel water inlet, effectively reduces the shutoff difficulty.Can also when not reaching 28 days intensity, the concreting of cast-in-situ steel reinforced concrete gate bear water pressure.
3) behind lock under the construction dash diversion gate, cast-in-place reinforced concrete gate with the whole shutoff of water inlet, form diversion tunnel water inlet shutoff gate structure.
4) after the concreting of cast-in-situ steel reinforced concrete gate reaches 28 days intensity and after the in kind vivid progress of dam can satisfy the retaining essential condition comprehensively and require, by manually-operated cast-in-situ steel reinforced concrete gate top pod apertures steel gate opening/closing is installed and is led the gipsy sheave group, make the pod apertures shutoff steel gate of drop in leaf rotate the shutoff pod apertures, the whole diversion tunnel water inlet whole shutoff in hole are finished, simultaneously dam begins retaining, by cast-in-situ steel reinforced concrete gate dash and bear the water pressure that the dam upstream inpoundment produces.
The method and the gate of a kind of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using provided by the invention have following beneficial effect: 1) cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using water inlet hole is safe and reliable.
In China's Hydraulic and Hydro-Power Engineering, at first require safe and reliable for diversion tunnel water inlet hole shutoff, method commonly used is with the shutoff of steel gate, be characterized in continuing to flow at diversion tunnel, can finish lock shutoff down at any time, safe and reliable, gate plugging structure concreting engineering quantity is big, steel gate volume and weight is big, it is also bigger to open and close the configuration of steel gate crane gear, and the engineering time is long, and difficulty is big, processing quality requires high, and corresponding cost is also high.The method applied in the present invention, construction dash water conservancy diversion steel gate can dash again can water conservancy diversion, effectively controlled the water level when diversion tunnel continues to flow, guaranteed that when diversion tunnel continues to flow shutoff each procedure of constructing has enough engineering times to construct doing on the ground safety.Reinforced concrete gate after cast-in-place satisfies bearing capacity and the requirement of percolating water do not occur.The set pod apertures of construction dash water conservancy diversion steel gate, the shutoff big section in hole of intaking is become shutoff pod apertures overcurrent light section, opening and closing device only need dispose a bracing frame and lead just energy open and close pod apertures shutoff steel gate of gipsy sheave group, effectively reduce the shutoff difficulty, make whole shutoff process reach safe and reliable requirement.
2) the cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using water inlet hole duration is short, economical and practical.
The water inlet building that method of the present invention is arranged, there is not the headstock gear framed bent, corresponding engineering quantity is few, and water inlet base plate, left and right sides abutment pier, the construction of upstream diversion wall-retaining structure being finished the back after diversion tunnel excavation is finished just can mistake water, has shortened the water inlet structure engineering time.When the shutoff construction of water inlet hole, construction dash diversion gate is in light weight, and one is heavy to be about 5t, just can be very fast down in gate slot with the 8t mobile crane.Reinforced concrete gate is a slabbed construction, finishes the time spent to be no more than 10 days from lock under the construction dash diversion gate to the concreting of shutoff gate, and the used time of shutoff is short.Because cast-in-situ steel reinforced concrete gate shutoff engineering quantity is few, the construction period is short, and corresponding operating expenses is wanted much less than with the shutoff of steel gate, has reached economy practical purpose again.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples: Fig. 1 is a front view of the present invention.
Fig. 2 is a right view of the present invention.
Fig. 3 is a vertical view of the present invention.
The specific embodiment
A kind of method of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using, may further comprise the steps: the water inlet building of being made up of water inlet base plate 2, left and right sides abutment pier 3 and upstream diversion barricade 4 that the shutoff water inlet hole of 1) building after diversion tunnel 1 excavation is finished is required makes diversion tunnel upper water levelling along entering diversion tunnel during construction diversion; 2) the 1 water inlet hole shutoff time of diversion tunnel is to finish December in dry season~February; 3) before the shutoff construction at the scene processing plant make according to construct dash water conservancy diversion steel gate 8, mozzle 6, pod apertures shutoff steel gate 10 of plan.Carry out design of reinforcing bar batching and processing in reinforcing bar factory according to water inlet and reinforced concrete gate 7 structure designs; 4) implement to prepare be at first to have repaiied builder's road and the concrete that a wide 6m in road surface leads to diversion tunnel water inlet shutoff construction part to change the material platform in the dam upstream in construction, and carry out the construct Construction Arrangement of projects such as required wind, water, electricity of diversion tunnel hole shutoff simultaneously.Then by tipping truck, flat car, dam cable machine or other crane gear, plant equipment such as mobile crane combination steel gate that the water inlet shutoff is used, reinforcing bar, tipping truck, flat car, mobile crane, backhoe and material delivery are to on-the-spot; 5) shutoff implementation process is: 1. cleaned out by manually will construct dash water conservancy diversion steel gate slot and Di Kan, hang in dash in the corresponding gate slot by the mobile crane dash water conservancy diversion steel gate 8 of will constructing earlier, manually sealing strip of paper used for sealing in the gate slot is carried out reinforcing thereupon, make the gate periphery not have percolating water, after being installed then, gate pod apertures 9 leads to the reinforced concrete gate 7 downstream mozzles of planning to build 6, the rise river passes the reinforced concrete gate of planning to build 7 by mozzle 6 and flows to the downstream, again with braiding packeted soil or rock ballast do dash downstream cofferdam 5 prevent mozzle 6 let out the past reinforced concrete gate groove of river down and pour in down a chimney, make each procedure of cast-in-situ steel reinforced concrete gate 7 can be in dry work; 2. by mobile crane pod apertures shutoff gate 10 is lifted on the construction dash water conservancy diversion steel gate 8, and on left and right sides abutment pier 3 end faces, puts No. 16 channel-section steels, pod apertures shutoff gate 10 is sling with the suspension hook of leading the gipsy sheave group; 3. manually in the reinforced concrete gate groove, at first carry out end bank, the processing of both sides gate slot seam face cutter hair, carry out formwork erection then successively, gate reinforcing bar binding and welding, the flushing of seam face, structure is checked and accepted; 4. the hole shutoff gate concrete of intaking is mixed system by the general arrangement batching plant, tipping truck transportation, be discharged into crouch jar in, the concrete that dam cable machine will crouch jar is discharged in the tipping truck that changes on the material platform, tipping truck is transported to water inlet with concrete, by backhoe concrete is discharged into institute and waters in the position.Manually smash device and close a position, vibrate, reach behind the design altitude by manually wiping one's face with Φ 100, the electronic vibration of Φ 50 plug-in types; 5. the artificial keying support 11 that the shutoff mozzle is installed on the concrete of building reinforced concrete gate 7, comprise and open and close bracing frame and gipsy sheave is led in keying, and the following pod apertures shutoff gate assembly pulley suspension hook of hanging of left and right sides abutment pier 3 end faces 16 channel-section steels taken off, change on the keying support 11, adjust pod apertures shutoff steel gate 10 shutoff enable possitions; 6. reach 28 days intensity when reinforced concrete gate 7, after dam vivid progress in kind satisfies the first filling essential condition comprehensively, open and close by operation and to lead the gipsy sheave group on the support 11, make the drop in leaf of pod apertures shutoff steel gate 10 rotate shutoff pod apertures 9; 7. after pod apertures 9 shutoff of construction dash water conservancy diversion steel gate 8, weld by manually entering the steel bar stress that reinforced concrete gate 7 downstreams is cut off by pod apertures 9 exits, get up with the concrete shutoff again, implement overall process thereby all finished cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using water inlet entrance construction.
A kind of diversion tunnel cast-in-situ steel reinforced concrete gate, comprise left and right sides abutment pier 3 and water inlet base plate 2, reinforced concrete gate 7 upstreams are provided with construction dash water conservancy diversion steel gate 8, construction dash water conservancy diversion steel gate 8 is except can the dash water conservancy diversion, it also is the face die plate of reinforced concrete gate 7, at least be provided with a mozzle 6 in the reinforced concrete gate 7, be communicated with the pod apertures 9 on the corresponding construction dash water conservancy diversion steel gate 8, according to field condition also can be two, three or four mozzles 6, and corresponding so with it also have two, three or four pod apertures 9 to be communicated with it.The pod apertures 9 outer pod apertures shutoff steel gates 10 that are provided with.Also be provided with on the described reinforced concrete gate 7 and open and close support 11, open and close support 11 and be connected with pod apertures shutoff steel gate 10.Be used to control the opening and closing of pod apertures shutoff steel gate 10, the below of described mozzle 6 tracts also is provided with downstream cofferdam 5.Downstream cofferdam 5 prevents from down to let out river and pours in down a chimney toward the reinforced concrete gate groove.

Claims (2)

1. the method for a cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using is characterized in that may further comprise the steps:
1) water inlet architecture construction comprises water inlet base plate (2), left and right sides abutment pier (3) and upstream diversion barricade (4) construction;
2) before the shutoff construction at the scene processing plant according to plan construct dash water conservancy diversion steel gate (8), mozzle (6) and pod apertures shutoff steel gate (10) making;
3) the dash water conservancy diversion steel gate (8) of will constructing hangs in dash in the corresponding gate slot, gate pod apertures (9) is installed then and is communicated with mozzle (6), the rise river passes the reinforced concrete gate of planning to build (7) by mozzle (6) and flows to the downstream, make downstream cofferdam (5) prevent behind the gate mozzle (6) under let out river and pour in down a chimney;
4) pod apertures shutoff steel gate (10) is lifted on the construction dash water conservancy diversion steel gate (8);
5) reinforced concrete gate of planning to build (7) is carried out the formwork erection construction;
6) reinforced concrete gate (7) is carried out pouring construction;
7) install to open and close support (11), will open and close support (11) and be connected, operate and lead the gipsy sheave group on the keying support (11), make pod apertures shutoff steel gate (10) shutoff pod apertures (9) with dash water conservancy diversion steel gate (8);
8) from tract steel concrete shutoff pod apertures (9);
Realized the construction of cast-in-situ steel reinforced concrete gate and plugging diversion tunnel without cutoff by using by above-mentioned steps.
2. the method for a kind of cast-in-situ steel reinforced concrete gate plugging diversion tunnel without cutoff by using according to claim 1 is characterized in that: with the step of pod apertures shutoff steel gate (10) shutoff pod apertures (9) reinforced concrete gate (7) build reach 28 days intensity after.
CN201010176721XA 2010-05-19 2010-05-19 Method for plugging diversion tunnel without cutoff by using cast-in-place reinforced concrete gate and the gate Active CN101824814B (en)

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CN103161143B (en) * 2013-04-01 2016-02-03 中国电建集团成都勘测设计研究院有限公司 A kind of Diversion Tunnel vertical shaft lock chamber structure be arranged in hidden body
CN103276705B (en) * 2013-05-07 2015-04-29 葛洲坝集团第六工程有限公司 Method for plugging diversion tunnel by cast-in-situ reinforced concrete without cutoff by gate and plugging reinforcing cage
CN103590379B (en) * 2013-11-25 2016-02-03 中国能源建设集团广东省电力设计研究院有限公司 The easy mounted-dismounted type tunnel mouth baffle device for water of electric power plant circulating water system and construction method thereof
CN103821114B (en) * 2014-02-28 2016-02-17 安徽水安建设集团股份有限公司 A kind of reservoir culvert method for blocking discarded under seepage pressure effect
CN104164858B (en) * 2014-07-30 2016-01-20 长江勘测规划设计研究有限责任公司 Realize the diversion tunnel point sequence method for blocking that induced joint retaining phase downstream continues to flow
CN106320352B (en) * 2016-08-26 2020-12-04 上海市政工程设计研究总院(集团)有限公司 Construction method of multifunctional steel sheet pile cofferdam
CN108331996B (en) * 2018-01-09 2020-02-14 辽宁省水利水电科学研究院有限责任公司 Emergency plugging method for concrete pressure pipeline
CN108775002B (en) * 2018-06-28 2020-12-04 中国电建集团贵阳勘测设计研究院有限公司 Diversion tunnel blocking structure crossed with diversion tunnel and construction method
CN109706900B (en) * 2019-01-23 2020-11-03 泰州市津达电子科技有限公司 Sectional type blocking structure for diversion tunnel and construction method thereof
CN110004959B (en) * 2019-04-26 2021-04-27 中国葛洲坝集团第一工程有限公司 Quick construction method and template for concrete cofferdam in flowing water environment

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