CN204663578U - One-way drain valve structure for hydraulic tunnel - Google Patents

One-way drain valve structure for hydraulic tunnel Download PDF

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Publication number
CN204663578U
CN204663578U CN201420840687.5U CN201420840687U CN204663578U CN 204663578 U CN204663578 U CN 204663578U CN 201420840687 U CN201420840687 U CN 201420840687U CN 204663578 U CN204663578 U CN 204663578U
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China
Prior art keywords
valve body
valve
hydraulic tunnel
single slope
sleeve pipe
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CN201420840687.5U
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Chinese (zh)
Inventor
余扬
周洲
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PowerChina Guiyang Engineering Corp Ltd
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PowerChina Guiyang Engineering Corp Ltd
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Priority to CN201420840687.5U priority Critical patent/CN204663578U/en
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Abstract

The utility model discloses a one-way drain valve structure for hydraulic tunnel, which comprises a sleeve and a valve core part which are arranged in lining concrete, wherein the sleeve is connected with the lining concrete and surrounding rock, a non-shrinkage grouting material is filled between the valve core part and the lining concrete, and the valve core part consists of a valve body and a valve ball arranged in the valve body; a spring is also arranged in the valve body and is positioned between the valve ball and the end of the cavity of the valve body; one end of the sleeve is provided with a water inlet, and the other end of the sleeve is in matched connection with the valve body through threads; one end of the valve body, which is connected with the sleeve, is provided with a drain hole, and the other end is provided with a circular drain outlet. The utility model discloses simple structure, operation are reliable, can effectively solve the condition of tunnel interior log raft to the country rock, can be under construction fast and pour simultaneously the use of coming into operation with other concrete in step, do not need later stage operation to maintain, shorten the time limit for a project greatly and save the engineering investment.

Description

A kind of for the single slope drainage valve arrangement in hydraulic tunnel
Technical field
The utility model belongs to hydraulic structure technical field.Specifically relate to a kind of for the single slope drainage valve arrangement in hydraulic tunnel.
Background technology
Existing hydraulic tunnel many employings concrete structure carries out lining cutting, and it is often subject to the effect of external water pressure in country rock, and when water level decreasing emptying in tunnel, due to the effect of high external water pressure, lining cutting is easy to destroy, and causes construction cost to increase.According to construction of hydropower plant development, most of engineering, when country rock exists the problem of larger external water pressure, therefore, usually adopts and arranges drain hole to adapt to.Its specific practice is drilled with drain hole in lining cutting, and nose end arranges filtering material, but the method cannot avoid in tunnel that water is discharged to the situation of country rock, and this is disadvantageous to the stable of tunnel.
For overcoming in prior art the deficiency adopting and be drilled with drain hole and carry out existing for draining, publication number is that the Chinese patent of CN2076993U discloses a kind of hydraulic structure one-way draw off valve, this draining valve is directly embedded in the drain hole of hydraulic structure, when external water pressure is higher than internal water pressure, outer water can be discharged, external water pressure is cut down rapidly, and when internal water pressure is higher than external water pressure, reverse flow is cut off, this valve mechanism plastic production, not corrosion, spool is convenient to dismounting, and has anti-silting function.But adopt this technical scheme in Specific construction, drain hole dismounting construction needs to separate the fixing of decannulation and drain hole hole wall, and this mode is destructive, and hydraulic tunnel repair during outer water draining always, some drain hole can be caused to change.Repair process needs to destroy concrete structure simultaneously, and for the outer water section of height, because the too high meeting of hydraulic pressure causes dismounting construction to carry out.
Utility model content
For solving the problem, the utility model provides a kind of for the single slope drainage valve arrangement in hydraulic tunnel.
The utility model is achieved by following technical solution.
A kind of for the single slope drainage valve arrangement in hydraulic tunnel, comprise and be arranged at sleeve pipe in lining concrete and spool part, described sleeve pipe connects lining concrete and country rock, be filled with contraction-free grouting concrete between described spool part and lining concrete, described spool part is made up of valve body and the valve ball be arranged in valve body.
Also be provided with spring in described valve body, and spring is between valve ball and the termination of valve cavity.
Described sleeve pipe one end is provided with water inlet, and the other end is connected by screw thread and valve body.
Described valve body is connected one end with sleeve pipe and is provided with drain hole, and the other end is provided with the circular row mouth of a river.
One end of described valve ball is taper, and the other end is regular hexagon.
Described valve body and valve ball adopt plastics or nylon material to make.
Described spring adopts stainless steel wire to make.
Described sleeve pipe is pvc pipe.
The beneficial effects of the utility model are:
Compared with prior art, the utility model structure is simple, reliable, effectively to solve in tunnel water discharged to the situation of country rock, rapid construction and other concrete synchronous can build and come into operation simultaneously, do not need later stage operation maintenance, greatly reduction of erection time and cost saving.The utility model directly uses disposable valve and drain hole to substitute, and simplifies later stage demolition and maintenance, avoids the excessive trouble cannot carrying out changing construction of high outer water section hydraulic pressure simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model tunnel inwall draining valve surface texture schematic diagram;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1.
In figure: 1-valve body, 2-ball valve, 3-spring, 4-sleeve pipe, 5-contraction-free grouting concrete, 6-lining concrete, 7-drain hole.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figures 1 to 4, described in the utility model a kind of for the single slope drainage valve arrangement in hydraulic tunnel, comprise and be arranged at sleeve pipe 4 in lining concrete 6 and spool part, described sleeve pipe 4 connects lining concrete 6 and country rock, be filled with contraction-free grouting concrete 5 between described spool part and lining concrete 6, described spool part is made up of valve body 1 and the valve ball 2 be arranged in valve body 1; Also be provided with spring 3 in described valve body 1, and spring 3 is between valve ball 2 and the termination of valve body 1 cavity.Between gutter outside and lining cutting, gap backfills with contraction-free grouting concrete.
Described sleeve pipe 4 one end is provided with water inlet, and the other end is connected by screw thread and valve body 1.
Adopt technique scheme, when Specific construction, arrange water inlet in sleeve pipe 4 one end, other end inwall is processed with screw thread, and valve body 1 one end outer wall threading is connected with the screw-internal thread fit on sleeve pipe 4.Described valve ball 2 is installed in the cavity of valve body 1 with spring 3.When constructing, according to the various operating modes of tunnel, the analytical calculation of country rock external water pressure can be carried out according to the mechanics of materials, structural mechanics or finite element method, and according to rock conditions and the layout of carrying out gutter with reference to grouting specification.
Described valve body 1 is connected one end and is provided with intensive drain hole 7 with sleeve pipe 4, with permeable filter sand, the other end is provided with the circular row mouth of a river.
One end of described valve ball 2 is taper, and the other end is regular hexagon.
Described valve body 1 and valve ball 2 adopt plastics or nylon material to make.
Described spring 3 adopts stainless steel wire to make.
Described sleeve pipe 4 is pvc pipe.
As shown in Figure 1 and Figure 2, the utility model is when constructing, first in lining concrete 6 and country rock, drain hole has been bored, after drain hole is rinsed well, with cementing agent, sleeve pipe 4 is bonded on hole wall, then spool (containing valve ball 2 and spring 3) is screwed in sleeve pipe 4, finally adopt contraction-free grouting concrete 5 to backfill to gutter exterior slots, construct simple and convenient.

Claims (8)

1. one kind for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: comprise and be arranged at sleeve pipe (4) in lining concrete (6) and spool part, described sleeve pipe (4) connects lining concrete (6) and country rock, be filled with contraction-free grouting concrete (5) between described spool part and lining concrete (6), described spool part is made up of valve body (1) and the valve ball (2) be arranged in valve body (1).
2. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: in described valve body (1), be also provided with spring (3), and spring (3) is positioned between the termination of valve ball (2) and valve body (1) cavity.
3. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: described sleeve pipe (4) one end is provided with water inlet, the other end is connected by screw thread and valve body (1).
4. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: described valve body (1) is connected one end with sleeve pipe (4) and is provided with drain hole (7), and the other end is provided with the circular row mouth of a river.
5. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: one end of described valve ball (2) is taper, and the other end is regular hexagon.
6. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: described valve body (1) and valve ball (2) adopt plastics or nylon material to make.
7. according to claim 2 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: described spring (3) adopts stainless steel wire to make.
8. according to claim 1 a kind of for the single slope drainage valve arrangement in hydraulic tunnel, it is characterized in that: described sleeve pipe (4) is pvc pipe.
CN201420840687.5U 2014-12-25 2014-12-25 One-way drain valve structure for hydraulic tunnel Active CN204663578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420840687.5U CN204663578U (en) 2014-12-25 2014-12-25 One-way drain valve structure for hydraulic tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420840687.5U CN204663578U (en) 2014-12-25 2014-12-25 One-way drain valve structure for hydraulic tunnel

Publications (1)

Publication Number Publication Date
CN204663578U true CN204663578U (en) 2015-09-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420840687.5U Active CN204663578U (en) 2014-12-25 2014-12-25 One-way drain valve structure for hydraulic tunnel

Country Status (1)

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CN (1) CN204663578U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517617A4 (en) * 2015-11-26 2017-03-15 Agru Kunststofftechnik Ges M B H Cover for a sleeve
CN107191633A (en) * 2017-05-15 2017-09-22 中国水利水电科学研究院 External water pressure automatic regulating valve door gear in a kind of detachable type tunnel lining

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517617A4 (en) * 2015-11-26 2017-03-15 Agru Kunststofftechnik Ges M B H Cover for a sleeve
AT517617B1 (en) * 2015-11-26 2017-03-15 Agru Kunststofftechnik Ges M B H Cover for a sleeve
WO2017089519A1 (en) * 2015-11-26 2017-06-01 "Agru" Kunststofftechnik Gesellschaft M.B.H. Closure cover for a sleeve
CN107191633A (en) * 2017-05-15 2017-09-22 中国水利水电科学研究院 External water pressure automatic regulating valve door gear in a kind of detachable type tunnel lining

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