CN206655198U - Big cross section diversion tunnel plugging structure by stages - Google Patents

Big cross section diversion tunnel plugging structure by stages Download PDF

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Publication number
CN206655198U
CN206655198U CN201621416998.4U CN201621416998U CN206655198U CN 206655198 U CN206655198 U CN 206655198U CN 201621416998 U CN201621416998 U CN 201621416998U CN 206655198 U CN206655198 U CN 206655198U
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CN
China
Prior art keywords
diversion tunnel
pier
sluice
cofferdam
occluding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201621416998.4U
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Chinese (zh)
Inventor
吴留伟
胡允楚
黄荣卫
吴蕾
郑国兵
彭银生
林日练
任伟
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ZHEJIANG DESIGN INSTITUTE OF WATER CONSERVANCY AND HYDROELECTRIC POWER
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ZHEJIANG DESIGN INSTITUTE OF WATER CONSERVANCY AND HYDROELECTRIC POWER
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Priority to CN201621416998.4U priority Critical patent/CN206655198U/en
Application granted granted Critical
Publication of CN206655198U publication Critical patent/CN206655198U/en
Withdrawn - After Issue legal-status Critical Current
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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

Abstract

The utility model big cross section diversion tunnel plugging structure, including sluice, separation pier, upstream cofferdam, downstream cofferdam, a phase occluding body, the second stage of occluding body and concrete bracket by stages.Sluice is arranged at inlet of diversion tunnel;Separate pier and be arranged on inlet of diversion tunnel section, the side gate pier among diversion tunnel hole for separating pier and sluice connects;Upstream cofferdam is located at inlet of diversion tunnel and is arranged in the side of sluice;Downstream cofferdam, which is arranged in, to be separated between the downstream of pier and the concrete lining of diversion tunnel;One phase occluding body is arranged on upstream cofferdam, downstream cofferdam, separation pier and the concrete-lined of diversion tunnel and encloses area;The second stage of occluding body is arranged on the downstream of the closure gate of sluice;Concrete bracket is arranged in a phase occluding body, and the suspension hook of lifting closure gate is provided with concrete bracket bottom.The utility model makes full use of different diversion time flooding schedule situations, solve thes problems, such as that the closure of major diameter diversion tunnel is difficult, construction is difficult.

Description

Big cross section diversion tunnel plugging structure by stages
Technical field
The plugging structure for diversion tunnel in a kind of construction project field is the utility model is related to, more particularly, to a kind of big cross section Diversion tunnel plugging structure by stages.
Background technology
Obvious flood season and non-flood period be present in zhejiang and other places.In flood season, by Meiyu front, typhoon influence, often have larger Rainfall, it is necessary to which diversion tunnel has larger flow section to meet excessively stream demand;Non-flood period, influenceed by less rainfall, often had Compared with low discharge, the closure of diversion tunnel also mostly selects to carry out in this period.The diversion tunnel of original larger area of passage only has bottom The a small amount of flow in portion, remaining most of not role-taking.
At present in Hydraulic and Hydro-Power Engineering, power station, reservoir engineering are particularly built in valley, is often limited under the pressure of condition, Tunnel diversion mode is selected, this there is the problem of diversion tunnel closure is carried out in the case of tunnel excessively stream.Conventional closure be Tunnel portal builds concrete abutment pier, and the inside arranges gate slot, water stop rubber is buried in gate slot.Armored concrete is arranged above abutment pier Or Steel framework post, closure gate is lifted by the on-off structure on bent columns and puts gate slot into, so as to complete water conservancy diversion Hole blocks.When run into diversion tunnel it is larger when, such as using disposable closure, then need the gate compared with large span.Meanwhile block Gate also needs to undertake water pressure caused by high water head, will necessarily make it that its thickness of slab is thicker, weight is very big, and lifts by crane gate accordingly Bent columns scale also becomes very big.It is then long to bury the reservoir area bottom and these structures all use once, larger engineering cost can be produced With.In addition, reservoir construction is often deep in the mountains, have inconvenient traffic, transport difficult, gate scale after becoming big corresponding lifting appliance compared with Difficulty, which is marched into the arena, to play a role, and this allows for blocking gate plugging construction on a large scale has construction risk and potential safety hazard as one Engineering.
Utility model content
The purpose of this utility model is to be directed to above-mentioned problem, there is provided one kind is adapted with big cross section diversion tunnel feature , big cross section diversion tunnel easy for construction plugging structure by stages, reaching reduces technical difficulty and construction risk, reduces closure engineering The purpose of total cost.
Technical scheme is used by the utility model:Big cross section diversion tunnel plugging structure by stages, include sluice, separate Pier, upstream cofferdam, downstream cofferdam, a phase occluding body, the second stage of occluding body and concrete bracket;The sluice is arranged on diversion tunnel and entered At mouthful;The separation pier is arranged on inlet of diversion tunnel section, separates the side gate pier among diversion tunnel hole of pier and the sluice Connection;The upstream cofferdam is located at inlet of diversion tunnel and is arranged in the side of sluice;The downstream cofferdam is arranged in upstream and enclosed Weir, downstream cofferdam, separation pier and the concrete-lined of diversion tunnel enclose area;The second stage of occluding body is arranged on the sluice Block the downstream of gate;The concrete bracket is arranged in a phase occluding body, and concrete bracket is connected with lifting appliance, can So that by being installed in concrete bracket bottom to lift by crane the suspension hook of closure gate, suspension hook holds extension lifting appliance.
The sluice is single hole or porous.
The length of the side gate pier is more than or equal to the bottom width of upstream cofferdam.
The length sum for separating pier length and being more than or equal to the bottom width and a phase occluding body of downstream cofferdam.
It is high that the vertical spacing of the concrete bracket and closure gate is more than or equal to 1.5 times of closure gate doors.
The beneficial effects of the utility model are:
(1) the utility model makes full use of diversion tunnel big cross section and non-flood period to carry out the characteristics of water is small, has innovated big cross section The thinking that diversion tunnel blocks by stages, reduce the difficulty and construction risk of the closure of big cross section diversion tunnel;
(2) the utility model eliminates the extensive bent columns of lifting gate before conventional diversion tunnel, reduces diversion tunnel The working procedure of closure, diversion tunnel closure quantities is saved.
The utility model is particularly suitable for use in, and large and medium water power station engineering diversion tunnel section is big, different diversion time waters are poor The big situation of head is undertaken away from big, closure gate.
Brief description of the drawings
Fig. 1 is the utility model embodiment midplane schematic diagram;
Fig. 2 is the utility model embodiment middle and upper reaches elevational schematic view;
Fig. 3 is block section schematic cross section in the utility model embodiment.
In figure:1- diversion tunnels;2- sluice;3- separates pier;4- mono- phase occluding bodies;5- second phase occluding bodies;6- upstream cofferdams;7- Downstream cofferdam;8- blocks gate;9- concrete brackets;10- cover plates;11- lifting appliances;12- concrete linings;21- sides gate pier.
Embodiment
To a kind of big cross section diversion tunnel of the utility model, plugging structure and its construction method are carried out by stages below in conjunction with the accompanying drawings Explanation.
As shown in Figure 1 to Figure 3, plugging structure includes being located at diversion tunnel a kind of big cross section diversion tunnel of the present utility model by stages The outer sluice 2 of 1 import, the separation pier 3 of the inducer of diversion tunnel 1 is located at, is located at a phase occluding body 4 and the second phase of the inducer of diversion tunnel 1 Occluding body 5, the upstream cofferdam 6 of the upstream of a phase occluding body 4 is located at, is located at the downstream cofferdam 7 in the downstream of a phase occluding body 4, is located at two The closure gate 8 of the upstream of phase occluding body 5, it is located at the concrete bracket 9 of lifting closure gate 8 in a phase occluding body 4.The present embodiment Middle diversion tunnel 1 is gateway opening type, bottom width 8.0m, high 8.0m, 180 ° of crown angle.Single arch sluice 2 is arranged on the right side of diversion tunnel 1, The wide 3.0m of sluice, high 2.0m, the thickness of the side gate pier 21 of sluice 2 is 0.80m, length 3.0m.Separate the length 13m of pier 3, height 2.0m, thickness 0.80m.Upstream cofferdam 6 and downstream cofferdam 7 are packed earth cofferdam, meet a phase occluding body 4 and coagulation with its dash The construction of clay ox leg 9, cofferdam crest level are consistent with pier 3 is separated.One phase occluding body 4 and the second stage of occluding body 5 use expansive concrete Pour, and rockfill grouting, surface grouting etc. are carried out after the completion of pouring.Block gate 8 and use concrete flat slab gate, it is wide 3.6m, high 2.5m, thickness 0.60m, using in-situ precast, cover plate 10 is laid on the gate slot of sluice 2, closure is poured on cover plate 10 Gate 8.The concrete bracket 9 of lifting closure gate 8 is located in occluding body 4 together, wide 0.7m, high 0.5m, jib-length 0.8m. The bottom of concrete bracket 9 is provided with suspension hook, hangs lifting appliance 11.By using blocking scheme by stages, by gate widths from 8.8m is reduced to 3.6m, and gate weight is reduced to 15t from 200t, effectively reduces closure gate weight, reduces gate lifting Difficulty, it effectively ensure that diversion tunnel smoothly blocks.
The construction method step of the utility model big cross section diversion tunnel plugging structure by stages is as follows:
A, determine that left gate pier 21, the length of right gate pier 21 and the sluice 2 of the entrance sluice 2 of diversion tunnel 1 arrange width, in water conservancy diversion Construction sluice 2 outside the import of hole 1;
B, determine to separate the length and width of pier 3, arranged in the inducer of diversion tunnel 1 and separate pier 3, separate pier 3 and left gate pier 21 Link together;
C, upstream cofferdam 6 is arranged in the entrance of diversion tunnel 1 of the opposite side of sluice 2, in the downstream of upstream cofferdam 6, separates pier 3 Downstream cofferdam 7 is arranged between diversion tunnel 1;
D, a phase occluding body 4 of being constructed in dry ground operation area is surrounded in upstream cofferdam 6, downstream cofferdam 7 and separation pier 3;
E, the position of concrete bracket 9 is determined, and is arranged in a phase occluding body 4, and a phase occluding body 4 is constructed together;
F, cover plate 10 is laid on the gate slot of sluice 2, the prefabricated closure gate 8 on cover plate 10;
G, suspension hook is installed in the bottom of concrete bracket 9, hangs lifting appliance 11;
H, sling using lifting appliance 11 by gate 8 is blocked, remove cover plate 10, then will block lock using lifting appliance 11 Door 8 is placed into gate slot, is completed diversion tunnel 1 and is dammed;
I, construction closure 8 downstream second phase of gate occluding body 5, completes diversion tunnel 1 and blocks.
The utility model is described above-described embodiment combination accompanying drawing, but therefore can not be interpreted as to this practicality The limitation of new patent scope.It should be pointed out that for the person of ordinary skill of the art, it is new not departing from this practicality On the premise of type is conceived, various modifications and improvements can be made, these belong to the scope of protection of the utility model.

Claims (6)

1. big cross section diversion tunnel plugging structure by stages, include sluice (2), separate pier (3), upstream cofferdam (6), downstream cofferdam (7), a phase occluding body (4), the second stage of occluding body (5) and concrete bracket (9), it is characterised in that:The sluice (2), which is arranged on, leads Flow hole (1) entrance;The separation pier (3) is arranged on diversion tunnel (1) inducer, and separation pier (3) is located at the sluice (2) Side gate pier (21) connection among diversion tunnel hole;The upstream cofferdam (6) is located at diversion tunnel (1) entrance and is arranged in sluice (2) side;The downstream cofferdam (7) be arranged in separate pier (3) downstream and diversion tunnel (1) concrete lining (12) it Between;The one phase occluding body (4) is arranged on upstream cofferdam (6), downstream cofferdam (7), the coagulation for separating pier (3) and diversion tunnel (1) Native lining cutting (12) encloses area;The second stage of occluding body (5) is arranged on the downstream of the closure gate (8) of the sluice (2);It is described Concrete bracket (9) is arranged in a phase occluding body (4), and concrete bracket (9) is connected with lifting appliance (11).
2. big cross section diversion tunnel according to claim 1 plugging structure by stages, it is characterised in that:The sluice (2) is single Hole is porous.
3. big cross section diversion tunnel according to claim 1 plugging structure by stages, it is characterised in that:The side gate pier (21) Length is more than or equal to the bottom width of upstream cofferdam (6).
4. big cross section diversion tunnel according to claim 1 plugging structure by stages, it is characterised in that:The separation pier (3) Length is more than or equal to the bottom width of downstream cofferdam (6) and the length sum of a phase occluding body (4).
5. big cross section diversion tunnel according to claim 1 plugging structure by stages, it is characterised in that:The concrete bracket (9) and the vertical spacing of closure gate (8) to be more than or equal to 1.5 times of closure gate (8) doors high.
6. big cross section diversion tunnel according to claim 1 plugging structure by stages, it is characterised in that:The concrete bracket (9) bottom is provided with to lift by crane the suspension hook of closure gate (8), and suspension hook, which is held, hangs lifting appliance (11).
CN201621416998.4U 2016-12-22 2016-12-22 Big cross section diversion tunnel plugging structure by stages Withdrawn - After Issue CN206655198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621416998.4U CN206655198U (en) 2016-12-22 2016-12-22 Big cross section diversion tunnel plugging structure by stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621416998.4U CN206655198U (en) 2016-12-22 2016-12-22 Big cross section diversion tunnel plugging structure by stages

Publications (1)

Publication Number Publication Date
CN206655198U true CN206655198U (en) 2017-11-21

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CN201621416998.4U Withdrawn - After Issue CN206655198U (en) 2016-12-22 2016-12-22 Big cross section diversion tunnel plugging structure by stages

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759161A (en) * 2016-12-22 2017-05-31 浙江省水利水电勘测设计院 A kind of big cross section diversion tunnel plugging structure and construction method by stages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759161A (en) * 2016-12-22 2017-05-31 浙江省水利水电勘测设计院 A kind of big cross section diversion tunnel plugging structure and construction method by stages

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Granted publication date: 20171121

Effective date of abandoning: 20180821

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