CN207919510U - Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate - Google Patents
Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate Download PDFInfo
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- CN207919510U CN207919510U CN201721546134.9U CN201721546134U CN207919510U CN 207919510 U CN207919510 U CN 207919510U CN 201721546134 U CN201721546134 U CN 201721546134U CN 207919510 U CN207919510 U CN 207919510U
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- diversion tunnel
- plug
- lock
- permanent plug
- permanent
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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
The utility model discloses diversion tunnel and blocks arrangement using lock under permanent plug first section joint gate, it includes a plurality of diversion tunnel (9) composition diversion tunnel group, the diversion tunnel group descends lock in two batches, and the diversion tunnel (9) of first batch of lower lock includes diversion tunnel inducer (1) and diversion tunnel barrel (1.1)；The diversion tunnel inducer (1) is provided with low water head and blocks gate (3), the diversion tunnel inducer (1) is provided with intake tower (2), low capacity headstock gear (4) is installed at the top of the intake tower (2)；The permanent plug (8) includes permanent plug Upstream section (8.1) and tract (8.2), and the permanent plug Upstream section (8.1) combines with interim plug (7) and arranges.The utility model overcomes diversion tunnel in the prior art and blocks the disadvantage that gate water blocking head is high, construction investment is big, has the advantages that innovate lock blocking technology under existing diversion tunnel.
Description
Technical field
More specifically it is that diversion tunnel utilizes permanent plug first section the utility model is related to arrive water conservancy and hydropower technical field
Lock blocks arrangement under joint gate.
Background technology
In mountain stream build hydroelectric project, the construction time once blocks disconnected riverbed frequently with cofferdam, diversion tunnel water conservancy diversion is applied
Work diversion plan.For the river that run-off is larger, 2 and the above diversion tunnel are often arranged, form diversion tunnel group, water conservancy diversion tunnel
Hole group is after completing water conservancy diversion sluicing task, it is necessary to carry out lower lock closure to meet reservoir impoundment power generation requirement.Under diversion tunnel group after lock,
Requirement is let out under construction time flow to meet, and is generally downstream supplied water using bottom diversion outlet, dam body mesoporous or bank flood discharging tunnel.It is conventional
Diversion tunnel group under lock block scheme be diversion tunnel import be arranged gate lock chamber, diversion tunnel block when, using keying
Gate is blocked under machine, protects permanent plug to construct using gate water blocking is blocked, permanent plug is used after the completion of permanent plug construction
Combine water blocking operation with dam.
Diversion tunnel group routinely descends lock to block solution technique maturation, but has the following disadvantages：
(1) diversion tunnel group closure gate water blocking head is high, headstock gear capacity is big, blocks gate and keying speculative investment is big.
After diversion tunnel group all descends lock, generally uses to let out under the discharge structures such as bottom diversion outlet, dam body mesoporous or bank flood discharging tunnel and apply
Duration flow, using above-mentioned discharge structure aerial drainage, upstream water level needs the certain elevations of Yong Gaozhi, could meet to let out under flow and want
It asks, therefore blocks gate water blocking head height, such as built small stream Luo Du and Longtan hydropower station, diversion tunnel block gate maximum water blocking water
Head is respectively 100.18m and 105.0m, and waxy common wheat power station diversion tunnel blocks gate maximum water blocking head and has reached 119.0m,
In the black East Germany and white crane beach power station built, diversion tunnel design blocks gate maximum water blocking head and has also exceeded 100m.
(2) for the engineering of diversion tunnel import complex geologic conditions, diversion tunnel blocks phase gear high water head operation, water conservancy diversion
There are certain security risks for the tunnel makeup of the imports.Diversion tunnel belongs to temporary project, part engineering import complex geologic conditions,
When high water head is run, diversion tunnel makeup of the imports water blocking security risk is big.
(3) for the engineering of a plurality of diversion tunnel of arrangement, to reduce diversion tunnel import excavation and support engineering amount, same to bank
The a plurality of diversion tunnel of arrangement generally uses mistake away from arrangement, wrong to cause away from arrangement for the engineering of import complex geologic conditions
Lock blocks dividing pier biasing problem during phase inducer exists under diversion tunnel, increases closure phase makeup of the imports risk.
Invention content
The purpose of the utility model is to overcome the shortcomings of above-mentioned background technology, and propose diversion tunnel using permanently
Plug first section combines lock under gate and blocks arrangement.
The purpose of this utility model is implemented by following arrangement：Diversion tunnel is joined using permanent plug first section
Lock blocks arrangement under bonding gate, it includes a plurality of diversion tunnel composition diversion tunnel group, and the diversion tunnel group includes two batches
The diversion tunnel of lock is descended respectively, and the diversion tunnel of first batch of lower lock includes diversion tunnel inducer and diversion tunnel
Barrel；The diversion tunnel inducer is provided with low water head and blocks gate, is provided in the diversion tunnel inducer
Intake tower is equipped with low capacity headstock gear at the top of the intake tower；It is set in the Upstream section of the diversion tunnel barrel
It is equipped with the interim plug of diversion tunnel, the downstream side of the interim plug is provided with permanent plug.
In the above-mentioned technical solutions：The permanent plug is located at crossing for the diversion tunnel and the main curtain line of dam
Place.
In the above-mentioned technical solutions：The permanent plug includes permanent plug Upstream section and permanent plugged downstream section, institute
The permanent plug Upstream section stated is combined arrangement with interim plug, and the permanent plug Upstream section also serves as interim plug.
In the above-mentioned technical solutions：The diversion tunnel is formed by one or more.
In the above-mentioned technical solutions：It is provided with lining cutting all over the body in the diversion tunnel hole.
The utility model has the following advantages that：
(1) lock diversion tunnel lower in the first batch can be significantly reduced and block gate water blocking head, optimization blocks gate and headstock gear system
System, cost saving is (as lock right bank 3 is descended in black East Germany power station in the first batch#、4#Diversion tunnel, right bank 3#、4#Diversion tunnel blocks
Gate water blocking head is reduced to 33m or so by the 108.88m of conventional scheme, blocks gate and is reduced to 325t/ to fan by 525t/ fans,
Headstock gear capacity is reduced to 9000kN, 4 sleeve blocking gates to save metal structure 800t altogether by 18000kN, and 4 sets of headstock gears are saved altogether
Metal structure 1000t, blocks gate and headstock gear optimization can about 46,800,000 yuan of cost saving).
(2) the lock diversion tunnel makeup of the imports lower in the first batch can be significantly reduced and upstream barrel section blocks phase water blocking head, hence it is evident that
Improve makeup of the imports stress condition, improves its water blocking safety (as lock right bank 3 is descended in black East Germany power station in the first batch#、4#Diversion tunnel,
Import mistake arranges that middle dividing pier minimum thickness is 21.5m away from 70m, and features as poor geologic condition is IV country rock, and lock is routinely descended to block arrangement
And method, dividing pier design bias water blocking head is 108.88m in import, and makeup of the imports stress condition is poor, and security risk is larger；
After the technical program, middle dividing pier design bias water blocking head can be reduced to 33.0m or so, decrease by 70%, disappear substantially
Except makeup of the imports water blocking security risk).
(3) lock diversion tunnel lower in the first batch can be significantly reduced and block gate water blocking phase upstream water level, for lock water conservancy diversion tunnel lower in the first batch
Hole blocks gate and headstock gear recycling creates conditions (as lock right bank 3 is descended in black East Germany power station in the first batch#、4#Diversion tunnel is pressed
Conventional lower lock blocks arrangement and method, and it is 920.88m that import, which blocks gate water blocking water level, after the technical program, import envelope
Blocking gate water blocking water level is reduced to 845.0m, is less than right bank 3#、4#Diversion tunnel intake tower cope level is 846m, is right bank 3#、
4#Diversion tunnel blocks gate and headstock gear recycling creates condition).
(4) the interim plug of lock diversion tunnel lower in the first batch is combined arrangement with permanent plug, can reduce and interim plug is separately provided
The construction investment of formation is (as lock right bank 3 is descended in black East Germany power station in the first batch#、4#Diversion tunnel, if 3#、4#Diversion tunnel is separately provided
Interim plug, then interim plug will increase concrete project amount 11524m3)。
(5) safety under diversion tunnel group during lock closure and economy can be improved in the utility model, is beneficial into one
Step optimizes lock under current diversion tunnel group and blocks arrangement and method, is blocked to lock under existing hydraulic and hydroelectric engineering diversion tunnel
The innovation of technology.
Description of the drawings
Fig. 1 is the first batch of lower interim stopper structure schematic diagram of lock diversion tunnel of the utility model.
Fig. 2 is the permanent stopper structure schematic diagram of diversion tunnel in the utility model.
Fig. 3 is that lock blocks programme diagram under the utility model diversion tunnel group.
In figure：Diversion tunnel inducer 1, intake tower 2, low water head block gate 3, low capacity headstock gear 4, lining cutting 5, dam
Main curtain line 6, interim plug 7, permanent plug 8, permanent plug Upstream section 8.1, permanent plugged downstream section 8.2, diversion tunnel 9.
Specific implementation mode
The performance that according to the present invention will be described in detail below with reference to the accompanying drawings, but they are not constituted to the utility model
Limit, it is only for example, while by illustrating the utility model the advantages of will become clearer and be readily appreciated that.
Referring to Fig.1 shown in -2：Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate, it includes a plurality of
Diversion tunnel 9 forms diversion tunnel group, and the diversion tunnel group includes the diversion tunnel 9 that two batches descend lock respectively, first
The diversion tunnel 9 of lock includes diversion tunnel inducer 1 and diversion tunnel barrel 1.1 under batch；In the diversion tunnel
Inducer 1 be provided with low water head block gate 3, the diversion tunnel inducer 1 is provided with intake tower 2, it is described into
The top of water tower 2 is equipped with low capacity headstock gear 4；The Upstream section of the diversion tunnel barrel 1.1 is provided with diversion tunnel
Interim plug 7, permanent plug 8 is provided in the downstream side of the interim plug 7.
The permanent plug 8 is located at the intersection of the main curtain line of the diversion tunnel 9 and dam 6.
The permanent plug 8 includes permanent plug Upstream section 8.1 and permanent plugged downstream section 8.2, and described is permanent stifled
Head Upstream section 8.1 is combined arrangement with interim plug 7, and the permanent plug Upstream section 8.1 also serves as interim plug 7.
The diversion tunnel 9 is formed by one or more；It is provided with lining cutting 5 all over the body in 9 hole of diversion tunnel.
With reference to shown in Fig. 3：The utility model further includes that diversion tunnel is blocked using lock under permanent plug first section joint gate
Method, it includes the following steps：
1., the tail-bay batch diversion tunnel 9 first, do not descended using second batch under the diversion tunnel 9 of lock and let out the construction time
Upland water (A points are water level line in figure) blocks gate 3 using 4 times lock low water heads of low capacity headstock gear and carries out lock lower in the first batch
Water blocking in 9 hole of diversion tunnel creates dry work condition in 9 hole of diversion tunnel of first batch of lower lock；
2., descend in the first batch the interim plug of lock diversion tunnel 7 to apply in the diversion tunnel barrel 1.1 of the diversion tunnel 9
Work；The permanent plug 8 (L in such as figure) includes (L in figure of permanent plug Upstream section 8.11) and permanent plugged downstream section 8.2
(L in figure2), the permanent plug Upstream section 8.1 is combined arrangement with the interim plug 7 of setting；
3., after the interim plug 7 completes and has water blocking condition, low water head block gate 3 and interim plug 7 it
Between water-filling concora crush, the interim plug 7 start water blocking, for downstream side setting the permanent plugged downstream section 8.2 dryly
Construction creates conditions；
4., the diversion tunnel 9 described in lower lock second batch, wait for that the upstream water level of the diversion tunnel 9 gradually rises, at this time
Interim plug 7 replaces conventional high water head to block gate and continues to run with water blocking in 9 hole of diversion tunnel of first batch of lower lock, the
The permanent plug 8 in diversion tunnel 9 described in two batches is constructed in the case where conventional high water head blocks gate protection；
5., wait in diversion tunnel 9 described in permanent plug 8 and second batch in the diversion tunnel 9 of lock lower in the first batch
The construction of permanent plug 8 complete and lock blocks when having water blocking condition, under diversion tunnel group completes.
Step 5. in；The diversion tunnel group include in the diversion tunnel 9 of first batch of lower lock permanent plug 8 and
Permanent plug 8 all complete and have water blocking condition by construction in the diversion tunnel 9 of lock under second batch.
The diversion tunnel 9 of first batch of lower lock is one or more diversion tunnel 9 of arbitrary selection；For diversion tunnel
One or more diversion tunnel of inducer complicated geologic conditions can preferentially be chosen for descending the first batch of diversion tunnel 9 of lock first.
The permanent plug Upstream section 8.1 also serves as interim plug 7, and described in the 7 water blocking head ratio of interim plug
8 water blocking head of permanent plug it is low.
Claims (4)
1. diversion tunnel blocks arrangement using lock under permanent plug first section joint gate, it is characterised in that：It includes a plurality of water conservancy diversion
Tunnel (9) forms diversion tunnel group, and the diversion tunnel group includes the diversion tunnel (9) that two batches descend lock respectively, first
The diversion tunnel (9) of lock includes diversion tunnel inducer (1) and diversion tunnel barrel (1.1) under batch；It is led in described
Stream tunnel inducer (1) is provided with low water head and blocks gate (3), and the diversion tunnel inducer (1) is provided with intake tower
(2), low capacity headstock gear (4) is installed at the top of the intake tower (2)；In the diversion tunnel barrel (1.1)
Upstream section is provided with the interim plug of diversion tunnel (7), and the downstream side of the interim plug (7) is provided with permanent plug (8)；
The permanent plug (8) includes permanent plug Upstream section (8.1) and permanent plugged downstream section (8.2), the permanent plug
Upstream section (8.1) is combined with interim plug (7) and is arranged, and the permanent plug Upstream section (8.1) also serves as interim plug (7).
2. diversion tunnel according to claim 1 blocks arrangement, feature using lock under permanent plug first section joint gate
It is：The permanent plug (8) is located at the intersection of the diversion tunnel (9) and the main curtain line (6) of dam.
3. diversion tunnel according to claim 1 or 2 blocks arrangement using lock under permanent plug first section joint gate, special
Sign is：The diversion tunnel (9) is formed by one or more.
4. diversion tunnel according to claim 3 blocks arrangement, feature using lock under permanent plug first section joint gate
It is：The whole body is provided with lining cutting (5) in described diversion tunnel (9) hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546134.9U CN207919510U (en) | 2017-11-14 | 2017-11-14 | Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721546134.9U CN207919510U (en) | 2017-11-14 | 2017-11-14 | Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate |
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| Publication Number | Publication Date |
|---|---|
| CN207919510U true CN207919510U (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721546134.9U Active CN207919510U (en) | 2017-11-14 | 2017-11-14 | Diversion tunnel blocks arrangement using lock under permanent plug first section joint gate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859009A (en) * | 2017-11-14 | 2018-03-30 | 长江勘测规划设计研究有限责任公司 | Diversion tunnel utilizes lock closure arrangement and method under permanent plug first section joint gate |
-
2017
- 2017-11-14 CN CN201721546134.9U patent/CN207919510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859009A (en) * | 2017-11-14 | 2018-03-30 | 长江勘测规划设计研究有限责任公司 | Diversion tunnel utilizes lock closure arrangement and method under permanent plug first section joint gate |
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