CN209429046U - Gravity dam transverse joint drainage channel structure - Google Patents

Gravity dam transverse joint drainage channel structure Download PDF

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Publication number
CN209429046U
CN209429046U CN201821949073.5U CN201821949073U CN209429046U CN 209429046 U CN209429046 U CN 209429046U CN 201821949073 U CN201821949073 U CN 201821949073U CN 209429046 U CN209429046 U CN 209429046U
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China
Prior art keywords
semicanal
rhone
pour
transverse joint
sealing
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Active
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CN201821949073.5U
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Chinese (zh)
Inventor
李竞波
覃祥建
王海波
庞明亮
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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Abstract

The utility model discloses a kind of gravity dam transverse joint drainage channel structures, are related to gravity dam tectonic sieving field, solve existing transverse joint rhone difficulty of construction is big, the disadvantage that construction quality is not easy to control.The technical solution adopted in the utility model is: gravity dam transverse joint drainage channel structure, including first casting concrete block and after-pouring concrete block, sealing is arranged in the structural joint of first casting concrete block and after-pouring concrete block, first casting concrete block and after-pouring concrete block between sealing close to be located at structural joint be respectively set first pour semicanal and after pour semicanal, first pour semicanal and after pour semicanal and combine to form rhone.First pour semicanal and after pour semicanal and be not take up the casting space between rhone and sealing in the construction stage, be conducive to guarantee construction quality, simplify rhone and construct grooving difficulty.It drains trench bottom and arranges that drainpipe, drainpipe can be used for being discharged the infiltration in transverse joint;Drainpipe is alternatively arranged as grout pipe, is in the milk to transverse joint, and then repairs to transverse joint sealing defect.

Description

Gravity dam transverse joint drainage channel structure
Technical field
The utility model relates to gravity dam tectonic sieving fields, more particularly, to gravity dam transverse joint water seal design.
Background technique
Gravity dam transverse joint is perpendicular to the vertical seam of the axis of dam, and effect is when differential settlement occurs in order to avoid ground Dam body generates crack.Sealing is set by upstream end in transverse joint.Currently, gravity dam transverse joint water seal design generally uses 2 or 3 to stop Water, in the construction process, sealing is easily deformed, destroys, leakiness of vibrating, and then transverse joint infiltration occurs.Although concrete gravity Dam transverse joint water sealing structure investment accounting very little, but the key position of dam, in built concrete gravity dam engineering, Transverse joint sealing defect, the case where leading to dam transverse joint leak, are more universal.Progress processing cost is high after water storage, difficulty of construction is big, And it is difficult processing thoroughly, water seal design is always the emphasis for designing, paying close attention in work progress.
To solve transverse joint seepage problem, one of rhone is generally set between dam transverse joint sealing, and the rhone junction of the edges of two sheets of paper is set It sets between twice transverse joint sealing, there is observation sealing leakage and drainage pressure-reducing effect under normal circumstances.Traditionally, rhone is adopted It is formed with pre-buried round or rectangular non-fine concrete prefabricated pipeline mode, the internal diameter of circular pipe is generally 150mm, wall thickness 100mm~150mm, outer diameter are generally 350mm~450mm.Rectangular rhone internal orifice size is generally 200mm, generally by prefabricated Concrete is as template pore-forming, therefore the rectangular rhone size formed is larger, and the side length of generally square shaped rhone (contains concrete Clay model plate) reach 400mm.
Since sealing spacing is generally 1m, transverse joint rhone uses pre-buried non-fine concrete pipeline or precast concrete form It is formed, needs to carry out lifting fixation before casting concrete, cumbersome difficulty of constructing is big;Since its size is larger, occupy larger Space, substantially reduce the effective distance between sealing, cause the concrete on sealing periphery relatively thin, sealing periphery concrete is not Easily there is transverse joint leak instead in easy vibration compacting, later period.
Utility model content
The utility model provides a kind of gravity dam transverse joint drainage channel structure, solve existing transverse joint rhone difficulty of construction is big, Construction quality disadvantage not easy to control.
The technical scheme adopted by the utility model to solve the technical problem is as follows: gravity dam transverse joint drainage channel structure, including The structural joint setting of first casting concrete block and after-pouring concrete block, first casting concrete block and after-pouring concrete block stops Water, first casting concrete block and after-pouring concrete block between sealing close to be located at structural joint be respectively set first pour semicanal and After pour semicanal, first pour semicanal and after pour semicanal and combine to form rhone.
Further, drainpipe is arranged in the bottom of the rhone, one end of drainpipe is connected to rhone, the other end Extend to corridor in dam.
Moreover: the drainpipe is built-in pipe, and is poured in concrete.
Further, it is described first pour semicanal and after big semicircle shape, the rhone such as to pour semicanal and be in be circle.
Specific: the diameter of the rhone is 150mm, and the diameter of drainpipe is 110mm.
Further, the width of the structural joint is 2cm, the spacing between two neighboring sealing is 100cm, rhone It is set to two neighboring sealing middle position.
Specifically, it is described elder generation casting concrete block and after-pouring concrete block between structural joint in be asphalt foam plate, Sealing is red copper sealing.
Rhone by first pour semicanal and after pour semicanal and combine and formed, before dam concrete placement, first casting concrete Pre-buried pipe die can form by mature extubation and first pour semicanal on the inside of block transverse joint template;Similarly, to pour after-pouring mixed When solidifying soil block, the pipe die of adaptation is also buried, semicanal is poured after formation, and then form rhone.
The beneficial effects of the utility model are: composition rhone first pour semicanal and after pour semicanal and be not take up in the construction stage Casting space between rhone and sealing is easy to construct, and it is not close to can effectively avoid concrete vibrating between rhone and sealing Real problem guarantees construction quality, and simplifies rhone construction grooving difficulty.
It drains trench bottom and arranges that drainpipe, drainpipe extend to corridor in dam, the infiltration in transverse joint can be effectively discharged in drainpipe Water;When water percolating capacity is larger, using drainpipe as grout pipe, be in the milk to transverse joint, so to transverse joint sealing defect into Row repairing.
Detailed description of the invention
Fig. 1 is the floor plan of the utility model gravity dam transverse joint drainage channel structure.
Fig. 2 is the section layout drawing of the utility model gravity dam transverse joint drainage channel structure.
Components, position and number in figure: first casting concrete block 1, after-pouring concrete block 2, sealing 3, rhone 4, Drainpipe 5, corridor in dam 6, asphalt foam plate 7, water stopping trough 8.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the utility model gravity dam transverse joint drainage channel structure, including first casting concrete block 1 is with after Casting concrete block 2 is structural joint between first casting concrete block 1 and after-pouring concrete block 2.For example, the width of structural joint For 2cm, interior structural joint is asphalt foam plate 7.Sealing 3 is also set up at structural joint, such as sealing 3 is red copper sealing, the bottom of sealing 3 Portion is water stopping trough 8.First casting concrete block 1 and after-pouring concrete block 2 between sealing 3 are set respectively close at structural joint Set first pour semicanal and after pour semicanal, first pour semicanal and after pour semicanal and combine to form rhone 4.First pour semicanal and after pour semicanal and can divide The pre-buried pipe die not on the inside of transverse joint template, then pouring molding, do not influence to construct, and simplify the construction grooving difficulty of rhone 8.
Rhone 4 it is preferably circular, first pour semicanal and after to pour semicanal be in semicircle shape respectively, for example, the diameter of rhone 4 For 150mm.Rhone 4 is preferably arranged at two neighboring 3 middle position of sealing, such as the spacing between two neighboring sealing 3 is The spacing of 100cm, 4 center of rhone and neighbouring sealing 3 is 50cm.
The bottom of rhone 4 can also arrange drainpipe 5, and one end of drainpipe 5 is connected to rhone 4, and the other end extends To corridor in dam 6.For example, the diameter of drainpipe 5 is 110mm, drainpipe 5 is embedded steel tube, and is poured in concrete.Draining The infiltration in transverse joint can be effectively discharged in pipe 5, when water percolating capacity is larger, is also used as grout pipe using drainpipe 5, fills to transverse joint Slurry, and then transverse joint sealing defect is repaired.

Claims (7)

1. gravity dam transverse joint drainage channel structure, including first casting concrete block (1) and after-pouring concrete block (2), first pour mixed Sealing (3) are arranged in the structural joint of solidifying soil block (1) and after-pouring concrete block (2), it is characterised in that: first pouring between sealing (3) Build concrete block (1) and after-pouring concrete block (2) close to be located at structural joint be respectively set first pour semicanal and after pour semicanal, first Pour semicanal and after pour semicanal and combine to form rhone (4).
2. gravity dam transverse joint drainage channel structure as described in claim 1, it is characterised in that: the bottom cloth of the rhone (4) It sets drainpipe (5), one end of drainpipe (5) is connected to rhone (4), and the other end extends to corridor in dam (6).
3. gravity dam transverse joint drainage channel structure as claimed in claim 2, it is characterised in that: the drainpipe (5) is built-in pipe, And it pours in concrete.
4. gravity dam transverse joint drainage channel structure as claimed in claim 1,2 or 3, it is characterised in that: the semicanal that first pours is with after Big semicircle shape, the rhone (4) such as pouring semicanal and be in is circle.
5. gravity dam transverse joint drainage channel structure as claimed in claim 4, it is characterised in that: the diameter of the rhone (4) is 150mm, the diameter of drainpipe (5) are 110mm.
6. gravity dam transverse joint drainage channel structure as claimed in claim 5, it is characterised in that: the width of the structural joint is 2cm, Spacing between two neighboring sealing (3) is 100cm, and rhone (4) is set to two neighboring sealing (3) middle position.
7. gravity dam transverse joint drainage channel structure as claimed in claim 1,2 or 3, it is characterised in that: elder generation's casting concrete It is asphalt foam plate (7) that sealing (3) is red copper sealing in structural joint between block (1) and after-pouring concrete block (2).
CN201821949073.5U 2018-11-23 2018-11-23 Gravity dam transverse joint drainage channel structure Active CN209429046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821949073.5U CN209429046U (en) 2018-11-23 2018-11-23 Gravity dam transverse joint drainage channel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821949073.5U CN209429046U (en) 2018-11-23 2018-11-23 Gravity dam transverse joint drainage channel structure

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CN209429046U true CN209429046U (en) 2019-09-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111441310A (en) * 2020-04-17 2020-07-24 中国水利水电科学研究院 Dam leakage repairing method
CN111501674A (en) * 2020-04-16 2020-08-07 中国电建集团华东勘测设计研究院有限公司 Water-stopping inspection and leakage treatment structure for structural joint of plunge pool and water-stopping inspection and leakage treatment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111501674A (en) * 2020-04-16 2020-08-07 中国电建集团华东勘测设计研究院有限公司 Water-stopping inspection and leakage treatment structure for structural joint of plunge pool and water-stopping inspection and leakage treatment method
CN111441310A (en) * 2020-04-17 2020-07-24 中国水利水电科学研究院 Dam leakage repairing method

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