CN203846466U - Water conveying tunnel tube system crossing movable fault - Google Patents
Water conveying tunnel tube system crossing movable fault Download PDFInfo
- Publication number
- CN203846466U CN203846466U CN201420230085.8U CN201420230085U CN203846466U CN 203846466 U CN203846466 U CN 203846466U CN 201420230085 U CN201420230085 U CN 201420230085U CN 203846466 U CN203846466 U CN 203846466U
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- Prior art keywords
- active fault
- exposed conduit
- safety valve
- hole
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 230000002968 anti-fracture Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model belongs to the field of hydraulic and hydro-power engineering building, and discloses a water conveying tunnel tube system crossing a movable fault. The water conveying tunnel tube system is structurally characterized in that a buried tube is arranged in a water conveying tunnel at the upstream of the movable fault, the buried tube is in transition connection with exposed tubes, and the exposed tubes are installed in the water conveying tunnel, are sequentially connected through expansion joints and penetrate through the movable fault. The connection portions of the buried tube and the exposed tubes are provided with safety valve chambers, the inside of each safety valve chamber is provided with a safety valve, the safety valves are provided with overspeed trip devices, and the exposed tubes between the downstream portions of the safety valves and the upstream portion of the movable fault are provided with pressure adjustment chambers. The novel water conveying tunnel tube system solves the problem that in the prior art, a water conveying tunnel tube system cannot be built on a movable fault with a large staggered distance or on a main movable fault, and has the advantages of being capable of quickly cutting off high-speed water flow after being damaged, reducing the amount of leaked water, preventing accident loss from increasing and being quickly repaired.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering construction field, is specifically related to a kind of water delivery hole wire system of crossing over active fault.This system is applicable to the Hydraulic and Hydro-Power Engineering that water delivery hole line is crossed over active fault, is particularly useful for the big-and-middle-sized hydroelectric project that high earthquake intensity region exists fairly large active fault.
Background technology
Under prior art condition, select site, power station or carry out generally all avoiding active fault, particularly important building when power-house is arranged more not allow to cross on active fault.The linear engineerings such as small-sized water delivery line can not be avoided active fault sometimes, while crossing over it, should avoid as far as possible dominant fault, simultaneously, also should select suitable fabric structure form and size, with the seismic forces effectively defending active fault and produced or impact and the destruction of surface displacement as far as possible, for example, for adapting to dam foundation fault displcement, earth and rockfill dam is all more reliable than any concrete dam.In addition, for reducing or avoid the destruction of seismic forces, the also material of capable of regulating building member itself, shape, size, with and end connection condition, the vibration period of building and earthquake is kept compared with big difference, avoid generation to resonate; Under certain condition, also can consolidated subsoil or improve the character of ground.
With regard to the design of water delivery hole line, for wrong, apart from less active fault, can the changing of the relative positions displacement that steel pipe expansion coupling carrys out compensation fault be set at fault region, but this method is only adapted to the less situation of the wrong distance of active fault.For wrong active fault or main active fault apart from surpassing 300mm, conveyance structure in the situation that taked the shockproof anti-fracture measure of appropriateness, also can suffer destruction in various degree unavoidably, and impaired rear maintenance is very difficult when meeting with super design standard earthquake.
So, wanting to break through water delivery hole line can not build in serious mistake apart from the forbidden zone on active fault or main active fault, will solve the high-voltage high-speed current how effectively cut-out pressure water channel is gushed out after destroying as early as possible, prevent destroy by rush of water switching station, Power Plant and other important buildings in downstream, avoid disaster accident further to expand; Meanwhile, the angle of how arranging from engineering is the engineering first-aid repair that carries out the earthquake condition that facilitates, and reduces the rehabilitation expense of water delivery hole line as far as possible, shortens and repairs the duration, restores electricity as early as possible, for post-disaster reconstruction provides the problem of electric power safeguard.
Yet these technical barriers, also not yet find feasible solution before this in construction of hydropower plant field.But, along with the raising of hydroelectric development degree, on high seismic intensity area and active fault, build power station and be difficult to avoid.
Utility model content
For overcoming above-mentioned technical problem, the utility model provides a kind of water delivery hole wire system of crossing over active fault, this system has broken through water delivery hole line and can not build in serious mistake apart from the forbidden zone on active fault or main active fault, both can cause water delivery hole line loss bad time in earthquake, prevent the water conservancy projects in its downstream of destroying by rush of water, for the water delivery hole line reparation after calamity provides strong condition, reduce rehabilitation expense again, shortened the time of repairing construction.
The technical scheme that the utility model is dealt with problems is: a kind of water delivery hole wire system of crossing over active fault, and the structure of this system is as follows:
In the water-conveyance tunnel of active fault upstream, be provided with one section of pipe laying, by pipe laying transition, be connected with exposed conduit, exposed conduit is arranged in water-conveyance tunnel and connects successively by expansion coupling, and exposed conduit is through active fault;
The junction of pipe laying and exposed conduit is provided with safe valve chamber, and indoor location has safety valve, for cut off rapidly the current from reservoir when tomography place exposed conduit breaks.And safety valve is furnished with the tripgear of overrunning, when the flow velocity of water surpasses the Peak Flow Rate of normal operation in exposed conduit, show that booster has occurred exposed conduit.Now, this tripgear will make safety valve under conditions of high flow rate, automatically cut out.
In technique scheme, on the exposed conduit between safety valve downstream, active fault upstream, be provided with surge-chamber, greatly reduced air compensation and the vacuum of safety valve when emergency cut-off, make the safety valve can quick closedown.
In technique scheme, from aspects such as volume, weight, cost, convenient degree of operation, consider, preferred security valve is butterfly valve.
In technique scheme, according to engineering requirement, on the exposed conduit in water-conveyance tunnel, be provided with anchor block, between two anchor blocks, be provided with buttress.
In technique scheme, for ensureing more stable, the safer operation of pipeline, described expansion coupling is the compound expansion coupling of various dimensions large compensation amount; And on first buttress in each expansion coupling downstream, be provided with vibration damping displacement-limited with dissipation device, effectively to limit exposed conduit, produce harmful excessive displacement, alleviate earthquake.This vibration damping displacement-limited with dissipation device can adopt device used in Chinese patent 201320367461.3.
For convenience of safeguarding, in hole, be provided with the passage of maintenance and inspection exposed conduit and ancillary facility thereof.Meanwhile, be also provided with ventilation hole and ventilation equipment, prevent that steel pipe, expansion coupling, safety valve and auxiliary equipment outer wall anticorrosive paint layer thereof from damaging and coming off because of dewfall, also can be used as access path.
In the water delivery hole wire system of leap active fault of the present utility model, its form of structure can also be done the improvement of further more optimizing on the basis of technique scheme, and its structure is as follows:
In the water-conveyance tunnel of active fault upstream, be provided with embedded bifurcated pipe, by embedded bifurcated pipe, be divided at least two holes, pierced active fault, by the exposed conduit in a hole to unit diversion and power.Prop up in hole at least two little exposed conduits of caliber are installed on respectively by embedded bifurcated pipe transition in main hole, and in a hole, exposed conduit connects successively by expansion coupling, and top exposed conduit is connected with embedded bifurcated pipe;
In embedded bifurcated pipe and each hole, the junction of exposed conduit is respectively equipped with safe valve chamber, and each indoor location has safety valve, and each safety valve is all furnished with the tripgear of overrunning.
And, on every between safety valve downstream, active fault upstream hole exposed conduit, be equipped with surge-chamber.
In the improved structure of above-mentioned further optimization, described main hole is at least two exposed conduits that caliber is little by embedded bifurcated pipe transition, one side is convenient to the safety valve of arranging that caliber is less, second also can make the caliber of exposed conduit expansion coupling diminish, and makes exposed conduit easily obtain larger each to compensation displacement.
In the improved structure of above-mentioned further optimization, between each safe valve chamber and between a hole, be provided with lateral ties gallery, dispersion of flow energy dissipating while being beneficial to steel pipe booster, also easy access is safeguarded and is ventilated simultaneously.
The beneficial effects of the utility model are: this water delivery hole wire system has broken through water delivery hole line and can not build in serious mistake apart from the forbidden zone on active fault or main active fault.When the changing of the relative positions of earthquake operating mode active fault causes steel pipe explosion, safety valve can fast shut-off high-velocity flow, prevents switching station, Power Plant and the village in its downstream of destroying by rush of water, with the expansion that avoids damage;
Meanwhile, because adopt the arrangement of exposed conduit in hole, for steel pipe reparation after calamity provides strong condition, reduce rehabilitation expense again, shortened repair time;
In the system of what is more important multiple branch circuit, when certain one or several arm is impaired, other int arm can continue normal use, normal diversion and power.And, when regular maintenance, also can close the safety valve of certain branch road, in the situation that not affecting generating, separately the exposed conduit of this branch road is overhauled.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further.
Fig. 1 is the structure top view that the utility model is crossed over the water delivery hole wire system of active fault.
Fig. 2 is the structure side view that the utility model is crossed over the water delivery hole wire system of active fault.
Fig. 3 is the vibration damping displacement-limited with dissipation device mounting structure schematic diagram in the wire system of the utility model water delivery hole.
Wherein, the main hole of 1-, the embedded bifurcated pipe of 2-, the safe valve chamber of 3-, the safe butterfly valve of 4-, 5-exposed conduit, 6-gallery, 7-surge-chamber, 8-anchor block, 9-buttress, 10-expansion coupling, 11-active fault, 12-props up hole, 13-vibration damping displacement-limited with dissipation device.
The specific embodiment
The present embodiment provides a kind of water delivery hole wire system of crossing over active fault, and as shown in Figure 1 and Figure 2, the structure of this system is as follows:
Active fault 11 upstreams are greater than in the water-conveyance tunnel at 150m place and are provided with embedded bifurcated pipe 2, by embedded bifurcated pipe 2, are divided into hole 12,12, two, two holes through active fault 11, by the exposed conduit 5 in two holes 12 to unit diversion and power.Main hole 1 is that two little exposed conduits 5 of caliber are installed on respectively in a hole 12 by embedded bifurcated pipe 2 transition;
Prop up in hole 12 and be provided with exposed conduit anchor block 8, the straight line pipeline section more slow in the gradient arranges one every 100m～200m, and the steeper straight line pipeline section of the gradient arranges one every 100m～150m; Between two anchor blocks 8, be provided with buttress 9, buttress centres are 10m～20m;
Prop up exposed conduit 5 in hole and connect successively by expansion coupling 10, top exposed conduit 5 is connected with embedded bifurcated pipe 2, and this expansion coupling 10 is arranged at each anchor block 8 downstream near anchor block 2.5m～100m place or two anchor block middles.For ensureing more stable, the safer operation of pipeline, described expansion coupling 10 is the compound expansion coupling of various dimensions large compensation amount, and on first buttress in each expansion coupling downstream, be provided with the vibration damping displacement-limited with dissipation device 13 described in Chinese patent 201320367461.3, effectively to limit exposed conduit, produce harmful excessive displacement, alleviate earthquake;
The junction of embedded bifurcated pipe 2 and two interior exposed conduits 5 in hole 12 is respectively equipped with safe valve chamber 3, and indoor location has safe butterfly valve 4, for cut off rapidly the current from reservoir when tomography place exposed conduit breaks.And safe butterfly valve 4 is furnished with the tripgear of overrunning, when the flow velocity of exposed conduit 5 interior water surpasses the Peak Flow Rate of normal operation, show that booster has occurred exposed conduit 5.Now, this tripgear will make safe butterfly valve 4 under conditions of high flow rate, automatically cut out;
On two between safe butterfly valve 4 downstreams, active fault 11 upstreams holes 12, be respectively equipped with surge-chamber 7, greatly reduced air compensation and the vacuum of safe butterfly valve 4 when emergency cut-off, make the safe butterfly valve 4 can quick closedown.
For convenience of maintenance, in a hole 12, be provided with the passage of maintenance and inspection exposed conduit 5 and ancillary facility thereof, and be provided with lateral ties gallery 6 between two safe valve chambers 3 and between two holes.Meanwhile, in 12 end, upstream, hole, be also provided with ventilation hole and ventilation equipment, be convenient to ventilate.
Water delivery of the present utility model hole wire system has broken through water delivery hole line and can not build in serious mistake apart from the forbidden zone on active fault or main active fault, having can fast shut-off high-velocity flow after impaired, reduce to leak the water yield, the feature that can Accident prevention loss expands and can repair fast.
Claims (6)
1. a water delivery hole wire system of crossing over active fault, it is characterized in that: in the water-conveyance tunnel of active fault upstream, be provided with one section of pipe laying, by pipe laying transition, be connected with exposed conduit, exposed conduit is arranged in water-conveyance tunnel and connects successively by expansion coupling, and exposed conduit is through active fault; The junction of pipe laying and exposed conduit is provided with safe valve chamber, and indoor location has safety valve, and safety valve is furnished with the tripgear of overrunning.
2. the water delivery hole wire system of leap active fault according to claim 1, is characterized in that: on the exposed conduit between safety valve downstream, active fault upstream, be provided with surge-chamber.
3. the water delivery hole wire system of leap active fault according to claim 1, is characterized in that: this system is also provided with exposed conduit buttress, is provided with vibration damping displacement-limited with dissipation device on first buttress in each expansion coupling downstream.
4. according to the water delivery hole wire system of the leap active fault described in claim 1,2 or 3, it is characterized in that: in the water-conveyance tunnel of active fault upstream, be provided with embedded bifurcated pipe, by embedded bifurcated pipe, be divided at least two holes, prop up and pierced active fault, prop up in hole at least two little exposed conduits of caliber are installed on respectively by embedded bifurcated pipe transition in main hole, prop up exposed conduit in hole and connect successively by expansion coupling, top exposed conduit is connected with embedded bifurcated pipe;
In embedded bifurcated pipe and each hole, the junction of exposed conduit is respectively equipped with safe valve chamber, and each indoor location has safety valve, and each safety valve is all furnished with the tripgear of overrunning.
5. the water delivery hole wire system of leap active fault according to claim 4, is characterized in that: on every between safety valve downstream, active fault upstream hole exposed conduit, be equipped with surge-chamber.
6. the water delivery hole wire system of leap active fault according to claim 4, is characterized in that: between each safe valve chamber and between a hole, be provided with lateral ties gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230085.8U CN203846466U (en) | 2014-05-07 | 2014-05-07 | Water conveying tunnel tube system crossing movable fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230085.8U CN203846466U (en) | 2014-05-07 | 2014-05-07 | Water conveying tunnel tube system crossing movable fault |
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| Publication Number | Publication Date |
|---|---|
| CN203846466U true CN203846466U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230085.8U Expired - Lifetime CN203846466U (en) | 2014-05-07 | 2014-05-07 | Water conveying tunnel tube system crossing movable fault |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938596A (en) * | 2014-05-07 | 2014-07-23 | 中国水电顾问集团中南勘测设计研究院有限公司 | Water conveyance tunnel line system crossing active fault |
-
2014
- 2014-05-07 CN CN201420230085.8U patent/CN203846466U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938596A (en) * | 2014-05-07 | 2014-07-23 | 中国水电顾问集团中南勘测设计研究院有限公司 | Water conveyance tunnel line system crossing active fault |
| CN103938596B (en) * | 2014-05-07 | 2016-04-27 | 中国电建集团中南勘测设计研究院有限公司 | A kind of conveyance tunnel wire system of crossing over active fault |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |