CN102505671B - Overhead maintenance passage for diversion tunnels - Google Patents
Overhead maintenance passage for diversion tunnels Download PDFInfo
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- CN102505671B CN102505671B CN2011103691991A CN201110369199A CN102505671B CN 102505671 B CN102505671 B CN 102505671B CN 2011103691991 A CN2011103691991 A CN 2011103691991A CN 201110369199 A CN201110369199 A CN 201110369199A CN 102505671 B CN102505671 B CN 102505671B
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- maintenance
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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 invention discloses an overhead maintenance passage for a plurality of diversion tunnels, which can reduce the construction cost. The maintenance passage comprises an un-blocked construction tunnel forming an external maintenance adit, and further comprises an upper maintenance branch adit, wherein the upper maintenance branch is higher than the external maintenance adit, communicated with the external maintenance adit through an external maintenance well, and communicated with the diversion tunnels through internal maintenance wells. The maintenance passage can drain ponded water without the need of a dedicated drain hole, which greatly reduces the construction cost; as the number of maintenance blocking doors is greatly reduced, the construction cost is greatly reduced, the construction difficulty is reduced, and the maintenance operation is more convenient; moreover, when one of the diversion tunnels is maintained, the normal operation of the other diversion tunnels cannot be impacted. Therefore, the overhead maintenance passage is suitable to be popularized and applied in the field of diversion power generation systems.
Description
Technical field
The present invention relates to diversion and power system field, especially a kind of upper straddle type access path for many diversion tunnels.
Background technology
In Hydraulic and Hydro-Power Engineering, in order to increase water diversion, usually adopt many diversion tunnels that are arranged in parallel to carry out diversion, diversion tunnel is after operation a period of time, and one will overhaul diversion tunnel, guarantees the normal use of diversion tunnel, when maintenance, the maintainer enters in diversion tunnel diversion tunnel is overhauled from access path, and at present, the access path that is used for many diversion tunnels adopts following two kinds of arrangements usually:
first kind of way, directly utilize the construction tunnel that forms when the excavation diversion tunnel, at the connecting portion of construction tunnel and diversion tunnel, the shutoff access door being set seals diversion tunnel, although this arrangement does not need additionally to arrange a maintenance hole, but the quantity of required shutoff access door is more, all need to arrange the shutoff access door every diversion tunnel both sides, and the design of shutoff access door, the manufacturing difficulty of construction is large, cost is higher, and when the diversion tunnel of maintenance backer inboard, the diversion tunnel that needs the emptying backer outside, and the shutoff access door in the unlatching backer outside, overhaul very inconvenient, in addition, in the diversion tunnel running, because seepage tunnel Nei Shui exosmoses or underground water, cause construction tunnel ponding, ponding in construction tunnel between two diversion tunnels can't be discharged, when opening the shutoff access door, ponding in construction tunnel between two diversion tunnels is gushed out, cause very large inconvenience to upkeep operation.
the second way, a maintenance hole is set below diversion tunnel, a maintenance hole is communicated with diversion tunnel by internal overhaul vertical shaft or inclined shaft, and at the connecting portion of internal overhaul inclined shaft or vertical shaft and diversion tunnel, the shutoff access door is set diversion tunnel is sealed, also be connected with the drainage tunnel that is in communication with the outside on a maintenance hole, although this arrangement has reduced the quantity of shutoff access door, but because a maintenance hole is in the diversion tunnel below, in the diversion tunnel running, because seepage tunnel Nei Shui exosmoses or underground water, can cause a maintenance hole internal water accumulation, need to set up drainage tunnel, and the construction cost of drainage tunnel is higher, make the construction cost of whole access path higher.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of upper straddle type access path that is used for many diversion tunnels that can reduce construction cost.
the technical solution adopted for the present invention to solve the technical problems is: the upper straddle type access path that should be used for many diversion tunnels, the construction tunnel that forms while comprising the excavation diversion tunnel, with the construction tunnel shutoff between two diversion tunnels, the construction tunnel of shutoff does not form outside maintenance adit, also comprise a maintenance hole, top, the position at a maintenance place, hole, top is higher than the position at maintenance adit place, outside, a maintenance hole, top is communicated with outside maintenance adit by outside inspection-pit, a maintenance hole, top is communicated with diversion tunnel by the internal overhaul well, externally be provided with plugging structure on the maintenance of the outside between inspection-pit and diversion tunnel adit
Further outside maintenance closure gate externally to be set on the maintenance of the outside between inspection-pit and diversion tunnel adit to form described plugging structure.
Further that the bottom in a maintenance hole, described top is higher than the highest operating water level of diversion tunnel.
Further during lower than the highest operating water level of diversion tunnel, in described internal overhaul well, the internal overhaul closure gate to be installed when the bottom in a top maintenance hole.
Further that described internal overhaul closure gate is arranged on the connecting portion in internal overhaul well and a maintenance hole, top.
Be further, a maintenance hole, described top is obliquely installed, and the end position that a maintenance hole, top is connected with outside inspection-pit is lower than the position at a maintenance other end place, hole.
Be further, the bottom of described internal overhaul well is provided with the internal overhaul adit, and the internal overhaul well is communicated with diversion tunnel by the internal overhaul adit.
the invention has the beneficial effects as follows: the position at a maintenance place, hole, top of this access path is higher than the position at maintenance adit place, outside, and a maintenance hole, top is communicated with outside maintenance adit, and outside maintenance adit is formed by existing construction tunnel, ponding in a maintenance hole, top can overhaul adit and automatically flow to the external world along outside, therefore, do not need to arrange specially drainage tunnel and just can reach the purpose of row's ponding, can greatly reduce the saving construction cost, and, when the maintainer overhauls a certain diversion tunnel, need not other seepage tunnel of emptying, the seepage tunnel that can directly to needs, overhaul overhauls, facilitate upkeep operation.By the plugging structure that outside maintenance closure gate forms, when maintenance is overhauled the diversion tunnel of closure gate near outside, can directly open outside maintenance closure gate, diversion tunnel is overhauled, convenient and swift.When the bottom in a top maintenance hole during higher than the highest operating water level of diversion tunnel, a maintenance hole, top directly is communicated with diversion tunnel by the internal overhaul well, do not need to arrange the shutoff access door, the quantity of maintenance closure gate greatly reduces, reduce greatly construction cost, and reduced the difficulty of construction.During lower than the highest operating water level of diversion tunnel, the internal overhaul closure gate being installed in the internal overhaul well when the bottom in a top maintenance hole, is in order to prevent that the water in diversion tunnel from emerging along the internal overhaul well, to flood a maintenance hole.The internal overhaul closure gate being arranged on the connecting portion in internal overhaul well and a maintenance hole, top, is to generate ponding in order to prevent in the internal overhaul well, and the easy access personnel carry out upkeep operation.A maintenance hole, top is obliquely installed, is convenient to the ponding in a maintenance hole, top is flowed out.In the bottom of internal overhaul well, the internal overhaul adit is set, easy access personnel's upkeep operation.
Description of drawings
Fig. 1 is the structural representation that the present invention is used for the upper straddle type access path of many diversion tunnels;
Description of symbols in figure: diversion tunnel 1, outside maintenance adit 2, a maintenance hole 3, top, outside inspection-pit 4, outside maintenance closure gate 5, internal overhaul well 6, internal overhaul closure gate 7, internal overhaul adit 8.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
as shown in Figure 1, the upper straddle type access path that should be used for many diversion tunnels, the construction tunnel that forms while comprising excavation diversion tunnel 1, with the construction tunnel shutoff between two diversion tunnels 1, the construction tunnel of shutoff does not form outside maintenance adit 2, also comprise a maintenance hole 3, top, the position at maintenance 3 place, hole, top is higher than the position at maintenance adit 2 places, outside, a maintenance hole 3, top is communicated with outside maintenance adit 2 by outside inspection-pit 4, a maintenance hole 3, top is communicated with diversion tunnel 1 by internal overhaul well 6, externally be provided with plugging structure on the maintenance of the outside between inspection-pit 4 and diversion tunnel 1 adit 2.in the process of diversion tunnel 1 operation, because the position at adit 2 places is overhauled in the position at maintenance 3 place, hole, top higher than outside, and because a maintenance hole 3, top is communicated with outside maintenance adit 2, and outside maintenance adit 2 is formed by existing construction tunnel, ponding in a maintenance hole, top 3 can overhaul adit 2 and automatically flow to the external world along outside, therefore, do not need to arrange specially drainage tunnel and just can reach the purpose of row's ponding, can greatly reduce the saving construction cost, and, when the maintainer need to overhaul a certain diversion tunnel 1, need not other seepage tunnel 1 of emptying, only need the water emptying in the diversion tunnel 1 of needs maintenance, after the maintainer enters from outside maintenance adit 2, enter in a maintenance hole 3, top along outside inspection-pit 4, then arrive along a maintenance hole, top 3 diversion tunnel 1 top that needs maintenance, can arrive in the diversion tunnel 1 that needs maintenance along internal overhaul well 6, and then diversion tunnel 1 is overhauled, can directly from the external world, enter in the seepage tunnel 1 that needs maintenance and carry out upkeep operation, make upkeep operation convenient and swift.Described outside inspection-pit 4, internal overhaul well 6 can be that vertical shaft can be also inclined shaft.When the bottom in a top maintenance hole 3 during higher than the highest operating water level of diversion tunnel 1, a maintenance hole 3, top directly is communicated with diversion tunnel 1 by internal overhaul well 6, do not need to arrange the maintenance closure gate, the quantity of maintenance closure gate greatly reduces, reduce greatly construction cost, and reduced the difficulty of construction., in order to prevent the water in diversion tunnel 1, along internal overhaul well 6, emerge during lower than the highest operating water level of diversion tunnel 1 when the bottom in a top maintenance hole 3, flood access path, at the interior internal overhaul closure gate 7 of having installed of internal overhaul well 6.Internal overhaul closure gate 7 can be arranged on the optional position in internal overhaul well 6, usually for fear of at the interior generation ponding of internal overhaul well 6, the easy access personnel carry out upkeep operation, and described internal overhaul closure gate 7 is arranged on internal overhaul well 6 and props up the connecting portion in hole 3 with the top maintenance.Described plugging structure can have numerous embodiments, for example, can adopt concrete directly this part passage to be shut, also can adopt the form of plug with this part passage plugging, as preferred mode, be: outside maintenance closure gate 5 externally is set on the maintenance of the outside between inspection-pit 4 and diversion tunnel 1 adit 2 form described plugging structure.
In addition, flow out and flow to end for the ease of the ponding with in a maintenance hole, top, usually a maintenance hole 3, described top is obliquely installed, the position at the end place that a maintenance hole 3, top is connected with outside inspection-pit 4 is lower than the position at maintenance 3 other end place, hole, top.Moreover, upkeep operation for the ease of the maintainer, the bottom of described internal overhaul well 6 is provided with internal overhaul adit 8, internal overhaul well 6 is communicated with diversion tunnel 1 by internal overhaul adit 8, internal overhaul adit 8 can utilize original construction tunnel transformation to form, and can further reduce construction cost.
Claims (7)
1. be used for the upper straddle type access path of many diversion tunnels, the construction tunnel that forms while comprising excavation diversion tunnel (1), it is characterized in that: will be positioned at the construction tunnel shutoff between two diversion tunnels (1), the construction tunnel of shutoff does not form outside maintenance adit (2), also comprise a maintenance hole (3), top, the position at adit (2) place is overhauled in the position at a maintenance place, hole (3), top higher than outside, a maintenance hole (3), top is communicated with outside maintenance adit (2) by outside inspection-pit (4), a maintenance hole (3), top is communicated with diversion tunnel (1) by internal overhaul well (6), externally be provided with plugging structure on the maintenance adit of the outside between inspection-pit (4) and diversion tunnel (1) (2).
2. the upper straddle type access path for many diversion tunnels as claimed in claim 1, is characterized in that: outside maintenance closure gate (5) externally is set on the maintenance adit of the outside between inspection-pit (4) and diversion tunnel (1) (2) forms described plugging structure.
3. the upper straddle type access path for many diversion tunnels as claimed in claim 2 is characterized in that: the bottom in a maintenance hole (3), described top is higher than the highest operating water level of diversion tunnel (1).
4. the upper straddle type access path for many diversion tunnels as claimed in claim 2, it is characterized in that: when the bottom in a top maintenance hole (3), during lower than the highest operating water level of diversion tunnel (1), internal overhaul closure gate (7) is installed in described internal overhaul well (6).
5. the upper straddle type access path for many diversion tunnels as claimed in claim 4 is characterized in that: described internal overhaul closure gate (7) is arranged on the connecting portion in internal overhaul well (6) and a maintenance hole (3), top.
6. the described upper straddle type access path for many diversion tunnels of any one claim according to claim 1 to 5, it is characterized in that: a maintenance hole (3), described top is obliquely installed, and the position at the end place that a maintenance hole (3), top is connected with outside inspection-pit (4) is lower than the position at a maintenance other end place, hole (3), top.
7. the upper straddle type access path for many diversion tunnels as claimed in claim 6, it is characterized in that: the bottom of described internal overhaul well (6) is provided with internal overhaul adit (8), and internal overhaul well (6) is communicated with diversion tunnel (1) by internal overhaul adit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103691991A CN102505671B (en) | 2011-11-18 | 2011-11-18 | Overhead maintenance passage for diversion tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103691991A CN102505671B (en) | 2011-11-18 | 2011-11-18 | Overhead maintenance passage for diversion tunnels |
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| Publication Number | Publication Date |
|---|---|
| CN102505671A CN102505671A (en) | 2012-06-20 |
| CN102505671B true CN102505671B (en) | 2013-11-20 |
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| CN2011103691991A Active CN102505671B (en) | 2011-11-18 | 2011-11-18 | Overhead maintenance passage for diversion tunnels |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498456B (en) * | 2013-10-17 | 2015-08-19 | 中水东北勘测设计研究有限责任公司 | Two or more pieces is tunnel inclined shaft or vertical shaft method for arranging straggly side by side |
| CN104018474B (en) * | 2014-06-23 | 2016-01-20 | 黄河勘测规划设计有限公司 | The method in a working tunnel backfill reconstruction maintenance hole |
| CN105240041A (en) * | 2015-11-17 | 2016-01-13 | 中国长江三峡集团公司 | Ventilating smoke dissipating system used for underground cavern construction of large hydropower station |
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| SU647398A1 (en) * | 1977-04-19 | 1979-02-15 | Среднеазиатское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им. С.Я.Жука | High-head spillway |
| SU988968A1 (en) * | 1980-01-31 | 1983-01-15 | За витель | Water supply path of hydraulic power station |
| CN201762695U (en) * | 2010-08-17 | 2011-03-16 | 中国水电顾问集团华东勘测设计研究院 | Structure applicable to large and medium-sized mechanical device to enter long tunnel for overhaul |
| CN201874614U (en) * | 2010-11-15 | 2011-06-22 | 中国水电顾问集团华东勘测设计研究院 | Drainage structure for emptying overhaul of derivation tunnel |
| CN202323897U (en) * | 2011-11-18 | 2012-07-11 | 中国水电顾问集团成都勘测设计研究院 | Inspection passage for multiple diversion tunnels |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108448A (en) * | 1992-09-28 | 1994-04-19 | Taisei Corp | Repairing method for tunnel |
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2011
- 2011-11-18 CN CN2011103691991A patent/CN102505671B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU636323A1 (en) * | 1975-01-17 | 1978-12-05 | Среднеазиатское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им. С.Я. Жука | High-head weir inlet |
| SU647398A1 (en) * | 1977-04-19 | 1979-02-15 | Среднеазиатское Отделение Всесоюзного Ордена Ленина Проектно-Изыскательского И Научно-Исследовательского Института "Гидропроект" Им. С.Я.Жука | High-head spillway |
| SU988968A1 (en) * | 1980-01-31 | 1983-01-15 | За витель | Water supply path of hydraulic power station |
| CN201762695U (en) * | 2010-08-17 | 2011-03-16 | 中国水电顾问集团华东勘测设计研究院 | Structure applicable to large and medium-sized mechanical device to enter long tunnel for overhaul |
| CN201874614U (en) * | 2010-11-15 | 2011-06-22 | 中国水电顾问集团华东勘测设计研究院 | Drainage structure for emptying overhaul of derivation tunnel |
| CN202323897U (en) * | 2011-11-18 | 2012-07-11 | 中国水电顾问集团成都勘测设计研究院 | Inspection passage for multiple diversion tunnels |
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| CN102505671A (en) | 2012-06-20 |
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Owner name: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTI Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF CHINA HYDROPOWER CONSU |
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Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: Chengdu Hydroelectric Investigation & Design Institute of SPC Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: Chengdu Hydroelectric Investigation & Design Institute of China Hydropower Consu |
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Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: Co., Ltd of Chengdu survey and design academy of electricity Jian group of China Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: Chengdu Hydroelectric Investigation & Design Institute of SPC |