CN209603077U - Two dam structures of runtime not pump drainage turn(a)round interim pump drainage - Google Patents
Two dam structures of runtime not pump drainage turn(a)round interim pump drainage Download PDFInfo
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- CN209603077U CN209603077U CN201920015754.2U CN201920015754U CN209603077U CN 209603077 U CN209603077 U CN 209603077U CN 201920015754 U CN201920015754 U CN 201920015754U CN 209603077 U CN209603077 U CN 209603077U
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Abstract
The utility model relates to hydraulic and hydroelectric engineering Design of Discharge Dissipation fields, disclose a kind of two dam structures of runtime not pump drainage turn(a)round interim pump drainage, including two dam dam bodys, the upstream dam facing and downstream dam facing of two dam dam bodys offer several drainage holes from top to bottom, bottom is equipped with horizontal foundation drainage gallery in two dam dam bodys, drainage hole is connected to foundation drainage gallery, it is located at below foundation drainage gallery in two dam dam bodys and is equipped with sump, sump is connected to foundation drainage gallery, vertical pumped well is equipped between at the top of sump and two dam dam bodys, pumped well top exit position is equipped with the reserved hole of installation engineering for pump housing.Two dam structures of the utility model runtime not pump drainage turn(a)round interim pump drainage, only turn(a)round, carries out interim pump drainage, and operating cost substantially reduces, and maintenance management is convenient.
Description
Technical field
The utility model relates to hydraulic and hydroelectric engineering Design of Discharge Dissipation fields, and in particular to a kind of runtime not pump drainage inspection
Repair two dam structures of phase interim pump drainage.
Background technique
With the construction of Southwestern China area large water conservancy hydroelectric engineering, the engineerings such as " high water head, big flow, narrow river valley " are special
The more aobvious protrusion of point, flood-discharge energy-dissipating is the emphasis studied in engineering safely.In existing induced joint engineering Design of Discharge Dissipation, dam body
Almost all uses the flood-discharge energy-dissipating mode of down stream of choosing, and this Energy Dissipation Modes have simple engineering structure, short time limit and to letting out
Flow, Tailwater Depth change adaptable feature.Since induced joint engineering flood discharge power is huge, to avoid release floodwatering flow under
Trip river causes seriously to wash away, and ensures flood discharge safety, needs to be arranged cushion pool behind dam and carries out energy dissipating, and is arranged in cushion pool end
Two dams are with harmony high water level, to guarantee there is enough energy dissipating water bodys and water cushion depth in cushion pool.
In existing induced joint engineering, the two dam overwhelming majority use concrete gravity dam pattern, and are arranged in dam body
Permanent closure evacuation system: being arranged the horizontal gallery of two row or multi-row in dam body, close to upstream and downstream dam facing position cloth between gallery
Drainage in dam body hole is set, sets dam base drainage well in the gallery of bottom；Sump and pump house are arranged in bottom, and install the water pump that permanently draws water.
It seeps water within the runtime, dam and is pooled in underdrain well by drainage in dam body hole and gallery, is discharged by water pump.Close pump drainage
Two dam of formula can effectively be discharged in dam and seep water, and reduce osmotic pressure and Uplift in dam body, improve the stabilization on two dams
Property.But closing two dam structure of pump-drainage type need to continue pump drainage in the normal operation phase, longtime running maintenance, construction investment and operation at
This is larger.
It in general, include: 1. water level in the high cushion pool of harmony in the main function that two dams are arranged in cushion pool end；2. blocking
Gear downstream river course sandstone back-silts to avoiding denuding in cushion pool；3. blocking downstream water in cushion pool turn(a)round as cushion pool
Condition is overhauled in offer dryly, therefore the main of two dams with condition includes the following two kinds situation:
(1) phase is operated normally
During operating normally phase flood discharge, two dams are integrally submerged under water, and lower sluicing stream crosses two dam dam crest streams
Downstream, the substantially anhydrous head difference of two above and below the dam or head difference very little.Even if at this point, leaning on it without pump drainage measure in two dams
Self weight can meet stability requirement completely.Therefore, the evacuation system in two dam of normal operation phase is not necessarily to.
(2) cushion pool turn(a)round
Behind dam during cushion pool maintenance, two dams need to block downstream water, and condition of overhauling dryly is provided for cushion pool, general
It is acted on by downstream water pressure and silt pressure, stress condition and general gravity dam are almost the same.To meet the steady of two dams
Determine and answer force request, need that pump drainage measure is arranged in dam body and carry out pump drainage, to reduce the intracorporal osmotic pressure of foundation plane and dam
Power.
It is found that two dams are only during cushion pool maintenance there are necessity of pump drainage, runtime pump drainage is complete for above-mentioned analysis
It is not necessary to.Existing two dam structure of closing pump-drainage type need to continue pump drainage in the normal operation phase, longtime running maintenance, operation at
This is higher, and operation maintenance management is complicated.
Summary of the invention
The purpose of this utility model is aiming at the deficiency of above-mentioned technology, and providing a kind of runtime, pump drainage turn(a)round is not interim
Two dam structures of pump drainage, only turn(a)round, carries out interim pump drainage, and operating cost substantially reduces, and maintenance management is convenient.
To achieve the above object, two dam knots of the not pump drainage turn(a)round interim pump drainage of runtime designed by the utility model
Structure, the two dam dam bodys including being located at cushion pool end, two dam dam body are concrete gravity dam, two dam dam body
Upstream dam facing and downstream dam facing offer several drainage holes from top to bottom, in two dam dam body bottom be equipped with level
Foundation drainage gallery, the drainage hole is connected to the foundation drainage gallery, and the base is located in two dam dam body
Sump is equipped with below plinth collector drain, the sump is connected to the foundation drainage gallery, the infiltration of two dam dam body
Water can converge into the sump, and vertical pumped well is equipped between the sump and two dam dam body top, described
Pumped well top exit position is equipped with the reserved hole of installation engineering for pump housing.
Preferably, several horizontal traffic collector drains, the friendship are additionally provided in two dam dam body from top to bottom
Logical collector drain is connected to the foundation drainage gallery, the drainage hole above each traffic collector drain with the traffic
Collector drain connection is catchmented described in the intracorporal infiltration in the dam two Dao Ba preferably remittance by the traffic collector drain
Well.
Preferably, the pumped well top exit is closed by dismountable high-strength steel sheet, is utilized in the phase of normal operation
The high-strength steel sheet closes the pumped well top exit, enters in the pumped well to avoid silt in water flow, described
Cushion pool turn(a)round, removes the high-strength steel sheet, is easily installed the engineering for pump housing.
Preferably, the diameter of the pumped well is greater than 80cm, meets the requirement that the water pump that draws water sinks down into the sump.
Preferably, it is connected with the dam base drainage well for being located at the two dams dam body bottom below the foundation drainage gallery, made
Infiltration below two dam dam body imports the foundation drainage gallery.
Preferably, the dam base drainage well downstream side is equipped with seepage proof curtain, reduces the infiltration below two dam dam body
Amount.
The utility model compared with prior art, has the advantage that
1, without pump drainage within the phase of normal operation, two dam dam bodys, operational management is convenient, saves pump drainage operating cost；
2, two dam dam bodys are greatly facilitated without the electromechanical equipments such as water pump that draw water within the phase of normal operation, two dam dam bodys
Operation maintenance management, and avoid the security risk of the generations such as electromechanical equipment aging, electric leakage；
3, in cushion pool turn(a)round, evacuation system is formed by installing the water pump that draws water, can meet in cushion pool and overhaul dryly
Condition, two dam dam stabilizations are secure；
4, due in two dam dam bodys without permanent evacuation system, electrical equipment in two dam dam bodys, ventilation illumination, fire-fighting,
The designs such as power supply can greatly simplify, and structure is relatively easy, and design difficulty and difficulty of construction are relatively low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model runtime not two dam structures of pump drainage turn(a)round interim pump drainage.
Each part numbers are as follows in figure:
Two dam dam bodys 1, downstream dam facing 3, seepage proof curtain 4, drainage hole 5, foundation drainage gallery 6, catchment at upstream dam facing 2
Well 7, pumped well 8, reserved hole 9, traffic collector drain 10, dam base drainage well 11.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, by taking black East Germany's engineering as an example, the utility model runtime not pump drainage turn(a)round interim pump drainage two
Dam structure, the two dam dam bodys 1 including being located at cushion pool end, two dam dam bodys 1 are concrete gravity dam, two dam dam bodys 1
Upstream dam facing 2 and downstream dam facing 3 offer several drainage holes 5 from top to bottom, in two dam dam bodys 1 bottom be equipped with level
Foundation drainage gallery 6, be additionally provided in two dam dam bodys 1 with the traffic collector drain 10 of a level, traffic collector drain 10 with
Foundation drainage gallery 6 is connected to, and the drainage hole 5 of 10 top of traffic collector drain is connected to the traffic collector drain 10, traffic row
The drainage hole 5 of 10 lower section of water gallery is connected to foundation drainage gallery 6, is connected with below foundation drainage gallery 6 and is located at two dam dam bodys 1
The dam base drainage well 11 of bottom, 11 downstream side of dam base drainage well are equipped with seepage proof curtain 4, are located at foundation drainage in two dam dam bodys 1
Sump 7 is equipped with below gallery 6, sump 7 is connected to foundation drainage gallery 6, between 1 top of sump 7 and two dam dam bodys
Equipped with vertical pumped well 8, the diameter of pumped well 8 is 80cm, and 8 top exit position of pumped well is equipped with the pre- of installation engineering for pump housing
Hole 9 is stayed, 8 top exit of pumped well is closed by dismountable high-strength steel sheet.
For the present embodiment in the phase of normal operation, two dam dam bodys, 1 water levels of upstream and downstream is essentially identical, and nothing is appointed in two dam dam bodys 1
What electromechanical equipment, 8 top exit of pumped well are closed by dismountable high-strength steel sheet, are entered to avoid silt in water flow and are drawn water
In well 8, without pump drainage in two dam dam bodys 1；Before cushion pool maintenance starts, start to draw water in cushion pool, two about 1 dam dam bodys
Swiming, position is essentially identical, and after the dam crest of two dam dam bodys 1 exposes the surface, the high intensity of 8 top exit of pumped well is closed in dismounting
Steel plate, in reserved 9 installation engineering for pump housing of hole, the water pump that will draw water is sunk down into sump 7 along pumped well 8, forms evacuation system, right
Infiltration in two dam dam bodys, 1 dam carries out pump drainage；During cushion pool maintenance, water body is drained in cushion pool, and two dam dam bodys 1 need
It blocks downstream water, condition of overhauling dryly is provided for cushion pool, two dam dam bodys 1 will be made by downstream water pressure and silt pressure
With the water pump that draws water carries out pump drainage to the infiltration in two dam dam bodys 1, it is ensured that two dam dam bodys 1 are stablized；Cushion pool maintenance is completed
Afterwards, by water-filling in cushion pool, two dam dam bodys, 1 water levels of upstream and downstream is essentially identical, the dam crest of two dam dam bodys 1 sink to the water surface it
Before, the water pump that draws water in sump 7 is taken out, removes engineering for pump housing, and seal 1 top exit of pumped well by high-strength steel sheet
It closes.
Through calculating, Wu Dongde engineering, two dam structure of the present embodiment can save runtime pump drainage expense about 1,000,000 every year.
Two dam structures of the utility model runtime not pump drainage turn(a)round interim pump drainage, in the phase of normal operation, Er Daoba
Without pump drainage in dam body 1, operational management is convenient, saves pump drainage operating cost；And two in dam dam body 1 without the electromechanics such as water pump that draw water
Equipment, greatly facilitates the operation maintenance management of two dam dam bodys 1, and avoids the generations such as electromechanical equipment aging, electric leakage
Security risk；In cushion pool turn(a)round, evacuation system is formed by installing the water pump that draws water, can meet and overhaul item in cushion pool dryly
Part, two dam dam bodys 1 are stablized secure；In addition, due in two dam dam bodys 1 without permanent evacuation system, electricity in two dam dam bodys 1
The designs such as gas equipment, ventilation illumination, fire-fighting, power supply can greatly simplify, and structure is relatively easy, and design difficulty and difficulty of construction are homogeneous
To lower.
Claims (6)
1. a kind of two dam structures of not pump drainage turn(a)round interim pump drainage of runtime, two dams Dao Ba including being located at cushion pool end
Body (1), two dam dam body (1) are concrete gravity dam, it is characterised in that: the upstream dam facing of two dam dam body (1)
(2) and downstream dam facing (3) offers several drainage holes (5) from top to bottom, and two dam dam body (1) interior bottom is equipped with water
Flat foundation drainage gallery (6), the drainage hole (5) are connected to the foundation drainage gallery (6), two dam dam body
(1) it is located at below the foundation drainage gallery (6) in and is equipped with sump (7), the sump (7) and the foundation drainage gallery
(6) it is connected to, vertical pumped well (8) is equipped between the sump (7) and two dam dam body (1) top, it is described to draw water
Well (8) top exit position is equipped with the reserved hole (9) of installation engineering for pump housing.
2. two dam structures of runtime not pump drainage turn(a)round interim pump drainage according to claim 1, it is characterised in that: described
Several horizontal traffic collector drains (10), the traffic collector drain are additionally provided in two dam dam bodys (1) from top to bottom
(10) be connected to the foundation drainage gallery (6), the drainage hole (5) above each traffic collector drain (10) with this
Traffic collector drain (10) connection.
3. two dam structures of runtime according to claim 1 or claim 2 not pump drainage turn(a)round interim pump drainage, it is characterised in that:
Pumped well (8) top exit is closed by dismountable high-strength steel sheet.
4. two dam structures of runtime not pump drainage turn(a)round interim pump drainage according to claim 3, it is characterised in that: described
The diameter of pumped well (8) is greater than 80cm.
5. two dam structures of runtime not pump drainage turn(a)round interim pump drainage according to claim 4, it is characterised in that: described
The dam base drainage well (11) for being located at two dam dam body (1) bottom is connected with below foundation drainage gallery (6).
6. two dam structures of runtime not pump drainage turn(a)round interim pump drainage according to claim 5, it is characterised in that: described
Dam base drainage well (11) downstream side is equipped with seepage proof curtain (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920015754.2U CN209603077U (en) | 2019-01-04 | 2019-01-04 | Two dam structures of runtime not pump drainage turn(a)round interim pump drainage |
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|---|---|---|---|
| CN201920015754.2U CN209603077U (en) | 2019-01-04 | 2019-01-04 | Two dam structures of runtime not pump drainage turn(a)round interim pump drainage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555087A (en) * | 2019-01-04 | 2019-04-02 | 长江勘测规划设计研究有限责任公司 | The two dam structures and its application method of runtime not pump drainage turn(a)round interim pump drainage |
-
2019
- 2019-01-04 CN CN201920015754.2U patent/CN209603077U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555087A (en) * | 2019-01-04 | 2019-04-02 | 长江勘测规划设计研究有限责任公司 | The two dam structures and its application method of runtime not pump drainage turn(a)round interim pump drainage |
| CN109555087B (en) * | 2019-01-04 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Two-way dam structure with temporary pumping and draining function in non-pumping and draining maintenance period in operation period and application method of two-way dam structure |
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