CN102155004B - Steel structure combined-type sandwich steel plate rock-fill dam - Google Patents

Steel structure combined-type sandwich steel plate rock-fill dam Download PDF

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Publication number
CN102155004B
CN102155004B CN2011100629683A CN201110062968A CN102155004B CN 102155004 B CN102155004 B CN 102155004B CN 2011100629683 A CN2011100629683 A CN 2011100629683A CN 201110062968 A CN201110062968 A CN 201110062968A CN 102155004 B CN102155004 B CN 102155004B
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China
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steel
dam
combined
layer
sandwich clad
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CN2011100629683A
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Chinese (zh)
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CN102155004A (en
Inventor
魏群
张国新
刘尚蔚
魏鲁双
姜华
尹伟波
罗茜文
高阳秋晔
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华北水利水电学院
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Priority to CN2011100629683A priority Critical patent/CN102155004B/en
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Publication of CN102155004B publication Critical patent/CN102155004B/en

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Abstract

The invention relates to a steel structure combined-type sandwich steel plate rock-fill dam, comprising a cushion layer region, a transition region, a rock fill region, a wave wall and a downstream slope protection. A water blocking panel, two side toe boards and a river bed toe board jointly form an impermeable structure, a combined-type sandwich steel plate of an upstream riverside surface of a dam body comprises an inner steel plate and an outer steel plate as well as a support skeleton, a plurality of fixed joint bars which are deeply inserted in the dam body are transversely arranged on the back surface of an inner single steel plate, and all the surfaces, the joint bars and butt joints or connecting bolts are all coated with a layer of antiseptic impermeable coating polyurea material. The rock-fill dam provided by the invention has the advantages of a gravity dam and a steel structure dam, is stable and is easy to construct, the structural form is flexible, the rock-fill dam can better adapt to topographic conditions, the performance requirement on damming material is low, multiple building materials can be used, environmental disruption produced by damming is reduced, and the rock-fill dam can be processed in batch in a factory, the site construction speed is fast, and the rock-fill dam is convenient to maintain or replace.

Description

Steel structure combined sandwich clad steel loose rock dam
Technical field
The present invention relates to the loose rock dam in a kind of hydrotechnics field, particularly relate to a kind of steel structure combined sandwich clad steel loose rock dam.
Background technology
Rock is one of common water retaining structure, the dam type that it is made up of the rockfill and the panel that meets water.Its advantage is; Dam body is made up of local material (building stones); Simple in structure; Increase, extend easily; Ground there is good compliance; Easy construction.But the maximum shortcoming of this dam type is that concrete slab is prone to thermal cracking in work progress; And in the running,, the stable of dam body had a negative impact because the differential settlement of dam body also will cause the crack.And in a single day concrete slab goes wrong and just exists problems such as maintenance difficult.
Summary of the invention
In order to overcome concrete face rockfill dam, investment is big, shortcoming long in time limit, big to ambient influnence, and the present invention provides a kind of steel structure combined sandwich clad steel loose rock dam.
Technical scheme: a kind of steel structure combined sandwich clad steel loose rock dam; Comprise the bed course district, transition region, enrockment district (main enrockment district and time enrockment district); Wave wall and downstream protection slope; Water retaining facing and two sides toe board, the common leakage preventing structure of forming of riverbed toe board, the water retaining facing of dam body upper reaches upstream face is the combined type sandwich clad steel, this combined type sandwich clad steel comprises inner layer steel plate and outer layer plate; Said inner layer steel plate fixedly is put together through a plurality of weather-proof steel disc Butt sealings by the weather-proof steel disc of several rectangles; And fit with the dam body upstream face, the weather-proof steel disc back side of each internal layer is laterally established many and is goed deep into the inner fixedly joint bars of dam body, and the support frame between the inside and outside two-layered steel plates is ridden in the junction of the weather-proof steel disc of internal layer; Horizontal and vertical support frame is divided into a plurality of support units to the upstream face of dam body, and a plurality of weather-proof steel discs are sealingly fastened in and form outer layer plate on the support frame; The lower end of combined type sandwich clad steel is connected with the riverbed toe board and sealing and fixing; Perhaps insert in the riverbed toe board and sealing and fixing; The both sides of combined type sandwich clad steel respectively with the step-like of two sides or inclined plane shape side slope sealing and fixing; On all surface of combined type sandwich clad steel with joint bar on, and auxiliary on butt joint or the connecting bolt one deck anti-corrosion leak-proof coating polyurea materials arranged.
Be provided with bed course between the inner panel of steel work assembled panel and the dam body.The thickness of weather-proof steel disc that is positioned at internal layer is in 10mm, and outer layer plate thickness is in 15mm~50mm scope.Inner layer steel plate can play even power transmission, plays the effect of template for the moulding of dam body packing area, and the gradient adjusting range of upper reaches steel work assembled panel is big (37 °~45 °) very.
Said skeleton is " worker " font steel; The a plurality of weather-proof steel disc of the inner layer steel plate of combined type sandwich clad steel and outer layer plate passes through bolt and weather strip sealing and fixing respectively on the edge of a wing of " worker " font steel, perhaps is fixed by welding on the edge of a wing of " worker " font steel.
One deck diaphragm seal is docked and is lined with in the i shaped steel bottom flange with inner layer steel plate, the bottom flange of i shaped steel is provided with through hole, and the weather-proof steel disc of internal layer is provided with corresponding screwed hole, and bolt screws in the external surface sealing and fixing that makes itself and inner layer steel plate from i shaped steel one end; One deck diaphragm seal is docked and is lined with in the i shaped steel top flange with outer layer plate, the top flange of i shaped steel is provided with screwed hole, and outer layer plate is provided with corresponding through hole, bolt screw in from the outer layer plate outside make itself and i shaped steel the top flange sealing and fixing together.
Vertical fixing has the bolt of deciding on the external surface of the weather-proof steel disc of internal layer; The bottom flange of i shaped steel is provided with the through hole to usefulness; Between i shaped steel and the weather-proof steel disc of internal layer, be lined with one deck diaphragm seal, and this through hole coupling is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut; The top flange vertical fixing of i shaped steel has the bolt of deciding, and outer weather-proof steel disc is provided with the through hole to usefulness, between outer weathering steel sheet and i shaped steel, is lined with one deck diaphragm seal.And this through hole is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut.
The combined type sandwich clad steel of dam body upstream face and horizontal plane angle scope are 37 °~45 °.
The dam body underwater bed is mattress layer or drainage prism, and the lower end of combined type sandwich clad steel is provided with drainage channel.
Said i shaped steel is that two channel-section steels are through bolt or the fixing formation of welding.
Said diaphragm seal is a rubber pad, and its cross section is " several " font, and perhaps cross section is " Ω " shape.
On the web of said i shaped steel, be provided with through hole.
Said i shaped steel is arranged from dense to sparse to the top end of from along the elevation direction.
In support unit, also be fixed with the intermediate support skeleton, this intermediate support skeleton is linear pattern or is camber line shape or polygon.
Dam body is provided with the overflow monolith, and spillwag chute all is fixed with steel plate in the downstream of overflow monolith, is fixed with steel plate on the dam body of overflow monolith both sides.
The riverbed medial shaft of bottom surface is to being provided with impervious wall at the upper reaches of dam body.
The end of said joint bar is provided with crotch.
Beneficial effect of the present invention:
1. the steel structure combined sandwich clad steel loose rock dam of the present invention are to use steel plate as the panel that meets water, with the dam body of earth and stone material as braced structures, come down to a kind of combined dam, and it has the advantage of gravity dam and steel-structure dam simultaneously.The direct-connected combined support steel plate of the internal layer of combined type sandwich clad steel and dam body wherein; And the inboard of this layer is fixed in the dam body through a plurality of joint bars; It is stable that the effect of joint bar keeps making up inner panel on the one hand; It is loose to make the upstream face of dam body partly become one on the other hand, and combination inner panel and dam body unity are that one can be firmer.The present invention have common loose rock dam stable advantage such as be easy to build in, overcome the existing long construction period of traditional concrete face dam and core wall dam, difficulty of construction is big, investment is big, material usage is big, the shortcoming big to ambient influnence.
2. dam type of the present invention is novel hydraulic structure; The crack occurs easily and the shortcoming that causes shortening application life with respect to the traditional concrete face dam, steel structure assembled panel dam is the water-retaining structure form that can bear various loads and the mixed material that transmits load.Its form of structure flexibly, adaptation to the ground condition better, not high to the performance requirement of dam material, can use multiple constructional materials; Reduce the environmental disruption that produces because of building a dam; But and having factory's batch machining, site operation speed is fast, is convenient to the advantage of safeguarding or changing.
3. another advantage that adopts the combined type sandwich clad steel to compare with common individual layer steel plate is that the thickness of steel plate is reduced; The steel work supporter that skeleton forms; Can uniformly hydraulic pressure be dispersed to inner layer steel plate, pass to dam body itself by inner layer steel plate again, reliable and stable.Its upper and lower two edges of a wing of I-shaped skeleton can be effectively with ectonexine steel plate sealing and fixing together; The bar shaped skeleton of vertical and horizontal surrounds a plurality of support units successively; Make the assembling and the maintenance of outer weather-proof steel disc all very convenient; Construction period is shortened in construction synchronously simultaneously greatly, improves efficient.
4. adopt technical scheme of the present invention when construction, can have two kinds by way of; A kind of is the loose rock dam upstream face to be repaired smooth back lay the combined type sandwich clad steel; Another kind directly forms template with the fixing back of combined type sandwich clad steel; Filler and compacting in template form the combination dam body, and construction is simple and efficient.
5. the present invention can also be at the equal fixation steel plate of back side and dam body top flange, thereby dam body itself can overcurrent, also can cooperate flood season safety to pass the flood period, and has reduced or reduced the design of temporary building (like cofferdam, diversion structure), the input of construction.
Description of drawings
Fig. 1 is the steel structure combined sandwich clad steel loose rock dam of a present invention section structure sketch map;
Fig. 2 is the local structure for amplifying sketch map of Fig. 1;
Fig. 3 is a combined type sandwich clad steel structural representation;
Fig. 4 is one of sealing and fixing structural representation of inside and outside layer steel plate and i shaped steel;
Fig. 5 is through the fixing i-beam structure sketch map that forms of butt joint by two channel-section steels;
Fig. 6 be inside and outside layer steel plate and i shaped steel the sealing and fixing structural representation two;
Fig. 7 and Fig. 8 are respectively two kinds of Facad structure sketch mapes of two kinds of dam bodys of the present invention;
Fig. 9 is the fixed structure sketch map of inside and outside layer steel plate.
Label 1 is the enrockment dam body among the figure, and 2 is outer layer plate, and 3 is inner layer steel plate, and 4 is downstream protection slope, and 5 is joint bar, and 6 is impervious wall; 7 is upper pond level, and 9 is i shaped steel (skeleton), and 10 are the overflow monolith, and 11 is step surface, and 11 ' is the inclined-plane, and 12 is toe board; 13 is the riverbed, and 14 is transition zone, and 15 is upstream apron, and 16 is wave wall, and 17 is bolt; 18 is through hole, and 19 is sealing mat (rubber pad), and 20 is the linear pattern skeleton of intermediate support, and 21 is the camber line shape support of intermediate support, and 22 is the through hole of outer layer plate; 22 ' is the screwed hole of inboard steel plate, and 23 for to decide bolt, and 24 is i shaped steel top flange screwed hole, and 24 ' is i shaped steel bottom flange through hole, and 25 is bed course.
The specific embodiment
Embodiment one: referring to Fig. 1-Fig. 4, Fig. 7, and a kind of steel structure combined sandwich clad steel loose rock dam, the loose rock dam that dam body is made up of enrockment; These loose rock dam comprise the bed course district; Transition region, enrockment district (main enrockment district and time enrockment district), steel work panel and two sides toe board, the common leakage preventing structure of forming of riverbed toe board; And the wave wall and the downstream protection slope that are positioned at dam crest, dam body upper reaches upstream face is set to the combined type sandwich clad steel.
The combined type sandwich clad steel comprises internal layer combined steel plate and outer combined steel plate, between inside and outside two-layer combined steel plate, support frame is set.
The internal layer combined steel plate is fitted on the dam body upstream face, and this inner layer steel plate is that a plurality of weather-proof steel disc that satisfies structural arrangement form is fixed through Butt sealing, and crosswise fixed has many joint bars on the inner surface of the weather-proof steel disc of each internal layer, and each joint bar gos deep into the dam body inboard.
The external surface of the butt joint of the weather-proof steel disc of each internal layer is fixed with " worker " font steel (skeleton); " worker " font steel of vertical and horizontal surrounds a plurality of support units successively; The external surface of each support unit respectively sealing and fixing corresponding outer layer plate monolithic is arranged, the fixing back of each outer layer plate monolithic Butt sealing forms outer layer plate; The a plurality of weather-proof steel disc of the inner layer steel plate of combined type sandwich clad steel and outer layer plate passes through bolt and weather strip sealing and fixing respectively on the edge of a wing of " worker " font steel.Concrete structure is, one deck diaphragm seal is docked and be lined with in the i shaped steel bottom flange with the internal layer combined steel plate, and the sealing sheet is a rubber pad, and its cross section is " several " font.The bottom flange of i shaped steel is provided with through hole, and the weather-proof steel disc of internal layer is provided with corresponding screwed hole, and bolt screws in the external surface sealing and fixing that makes itself and inner layer steel plate from i shaped steel one end; One deck diaphragm seal is docked and is lined with in the i shaped steel top flange with outer layer plate, the top flange of i shaped steel is provided with screwed hole, and outer layer plate is provided with corresponding through hole, bolt screw in from the outer layer plate outside make itself and i shaped steel the top flange sealing and fixing together.
The two sides side slope of dam body is the toe board of the step-like or inclined plane shape of concrete; The riverbed of dam body upper reaches upstream face is the concrete plane toe board; The lower end of combined type sandwich clad steel is connected with the riverbed toe board and sealing and fixing; Perhaps insert in the toe riverbed plate and sealing and fixing; The both sides of combined type sandwich clad steel respectively with the step-like of two sides or inclined plane shape side slope sealing and fixing, on all surface of combined type sandwich clad steel with joint bar on, and auxiliary on butt joint or the connecting bolt one deck anti-corrosion leak-proof coating polyurea materials arranged.
Be provided with bed course between the inner panel of steel work assembled panel and the dam body.The thickness of weather-proof steel disc that is positioned at internal layer is in 10mm, and outer layer plate thickness is in 15mm~50mm scope.Inner layer steel plate can play even power transmission, plays the effect of template for the moulding of dam body packing area, and the gradient adjusting range of upper reaches steel work assembled panel is big (37 °~45 °) very.
The web of i shaped steel is provided with through hole, and the lower end of steel work assembled panel is provided with drainage channel.
Said skeleton pitch density to the dam crest trend at the bottom of the dam is dredged by close the change gradually.Also can in support unit, also be fixed with the intermediate support skeleton, Fig. 3 shows that this intermediate support skeleton is a linear pattern.
Embodiment two: referring to Fig. 5, content and embodiment one are basic identical, and something in common does not repeat, and different is: said i shaped steel is that two channel-section steels are through bolt or the fixing formation of welding.
Embodiment three: referring to Fig. 6; Content and embodiment one are basic identical, and something in common does not repeat, and different is: vertical fixing has the bolt of deciding on the external surface of the weather-proof steel disc of internal layer; The bottom flange of i shaped steel is provided with the through hole to usefulness; Between i shaped steel and the weather-proof steel disc of internal layer, be lined with one deck diaphragm seal, and this through hole coupling is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut; The top flange vertical fixing of i shaped steel has the bolt of deciding, and outer weather-proof steel disc is provided with the through hole to usefulness, between outer weathering steel sheet and i shaped steel, is lined with one deck diaphragm seal.And this through hole is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut.
Embodiment four: referring to Fig. 8, content and embodiment one are basic identical, and something in common does not repeat, and different is: the two sides side slope is the inclined-plane.
Embodiment five: accompanying drawing is not drawn, and content and embodiment one are basic identical, and something in common does not repeat, and different is: the dam body middle part is provided with the overflow monolith, all is fixed with steel plate in the downstream side and the top flange of overflow monolith, and the both sides of overflow monolith also are fixed with steel plate.
Embodiment six: referring to Fig. 9, content and embodiment one are basic identical, and something in common does not repeat, and different is: in support unit, also be fixed with the intermediate support skeleton, this intermediate support skeleton is a camber line shape.
Embodiment seven: accompanying drawing is not drawn, and content and embodiment one are basic identical, and something in common does not repeat, and different is: a plurality of weather-proof steel disc of the inner layer steel plate of combined type sandwich clad steel and outer layer plate is to be fixed by welding on the edge of a wing of " worker " font steel.
Embodiment eight: accompanying drawing is not drawn, and content and embodiment one are basic identical, and something in common does not repeat, and different is: said diaphragm seal is a rubber pad, and its cross section is " Ω " shape.
Embodiment nine: accompanying drawing is not drawn, and content and embodiment one are basic identical, and something in common does not repeat, and different is: the end of said joint bar is provided with crotch.

Claims (10)

1. steel structure combined sandwich clad steel loose rock dam comprise the bed course district, transition region; The enrockment district, wave wall and downstream protection slope, water retaining facing and two sides toe board, the common leakage preventing structure of forming of riverbed toe board; It is characterized in that: the water retaining facing of dam body upper reaches upstream face is the combined type sandwich clad steel; This combined type sandwich clad steel comprises inner layer steel plate and outer layer plate, and said inner layer steel plate is that a plurality of weather-proof steel disc that satisfies structural arrangement form is fixed through Butt sealing, and fits with the dam body upstream face; The weather-proof steel disc back side of each internal layer is laterally established many and is goed deep into the inner fixedly joint bar of dam body; Support frame between the inside and outside two-layered steel plates is ridden in the junction of the weather-proof steel disc of internal layer, and horizontal and vertical support frame is divided into a plurality of support units to the upstream face of dam body, and a plurality of weather-proof steel discs are sealingly fastened in and form outer layer plate on the support frame; The lower end of combined type sandwich clad steel is connected with the riverbed toe board and sealing and fixing; Perhaps insert in the riverbed toe board and sealing and fixing; The both sides of combined type sandwich clad steel respectively with the step-like of two sides or inclined plane shape side slope sealing and fixing; On all surface of combined type sandwich clad steel with fixing joint bar on, and auxiliary on the weather-proof steel disc butt joint one deck anti-corrosion leak-proof coating polyurea materials arranged.
2. according to the said steel structure combined sandwich clad steel loose rock dam of claim 1; It is characterized in that: said skeleton is " worker " font steel; The a plurality of weather-proof steel disc of the inner layer steel plate of combined type sandwich clad steel and outer layer plate passes through bolt and diaphragm seal sealing and fixing respectively on the edge of a wing of " worker " font steel, perhaps is fixed by welding on the edge of a wing of " worker " font steel.
3. according to the said steel structure combined sandwich clad steel loose rock dam of claim 2; It is characterized in that: one deck diaphragm seal is docked and is lined with in the i shaped steel bottom flange with inner layer steel plate; The bottom flange of i shaped steel is provided with through hole; The weather-proof steel disc of internal layer is provided with corresponding screwed hole, and bolt screws in the external surface sealing and fixing that makes itself and inner layer steel plate from i shaped steel one end; One deck diaphragm seal is docked and is lined with in the i shaped steel top flange with outer layer plate, the top flange of i shaped steel is provided with screwed hole, and outer layer plate is provided with corresponding through hole, bolt screw in from the outer layer plate outside make itself and i shaped steel the top flange sealing and fixing together.
4. according to the said steel structure combined sandwich clad steel loose rock dam of claim 2; It is characterized in that: vertical fixing has the bolt of deciding on the external surface of the weather-proof steel disc of internal layer; The bottom flange of i shaped steel is provided with the through hole to usefulness; Between i shaped steel and the weather-proof steel disc of internal layer, be lined with one deck diaphragm seal, and this through hole coupling is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut; The top flange vertical fixing of i shaped steel has the bolt of deciding; Outer weather-proof steel disc is provided with the through hole to usefulness; Between outer weathering steel sheet and i shaped steel, be lined with one deck diaphragm seal, and this through hole is set in corresponding deciding on the bolt, each end of deciding bolt is fixed with nut.
5. according to the said steel structure combined sandwich clad steel loose rock dam of claim 1, it is characterized in that: the combined type sandwich clad steel of dam body upstream face and horizontal plane angle scope are 37 °~45 °.
6. according to claim 2 or 3 or 4 each said steel structure combined sandwich clad steel loose rock dam, it is characterized in that: said diaphragm seal is rubber pad or copper sheet, and its cross section is " several " font, and perhaps cross section is " Ω " shape.
7. according to claim 2 or 3 or 4 each said steel structure combined sandwich clad steel loose rock dam, it is characterized in that: on the web of said i shaped steel, be provided with through hole.
8. according to the said steel structure combined sandwich clad steel loose rock dam of claim 2, it is characterized in that: said i shaped steel is arranged from dense to sparse to the top end of from along the elevation direction.
9. according to the said steel structure combined sandwich clad steel loose rock dam of claim 1, it is characterized in that: in support unit, also be fixed with the intermediate support skeleton, this intermediate support skeleton is linear pattern or is camber line shape or polygon.
10. according to the said steel structure combined sandwich clad steel loose rock dam of claim 1, it is characterized in that: dam body is provided with the overflow monolith, all is fixed with steel plate at the spillwag chute of overflow monolith, is fixed with steel plate on the dam body of overflow monolith both sides.
CN2011100629683A 2011-03-16 2011-03-16 Steel structure combined-type sandwich steel plate rock-fill dam CN102155004B (en)

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CN102587329B (en) * 2012-04-12 2014-01-22 河海大学 Arched combined faceplate for earth-rock dam and construction method thereof
CN102912768A (en) * 2012-11-02 2013-02-06 中国水电顾问集团华东勘测设计研究院 Earthquake resistant structure of high earth-rock dam in earthquake region
CN104060580B (en) * 2014-06-05 2016-04-13 河海大学 Compensate for displacement eliminates the method for high facial mask loose rock dam antiseepage film anchoring place chucking effect
CN104372770B (en) * 2014-11-05 2016-08-24 华北水利水电大学 Rubber panel rock-fill dams and construction method thereof
CN105297686B (en) * 2015-11-25 2017-12-19 河海大学 A kind of grating type CFRD

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JP2000027206A (en) * 1998-07-13 2000-01-25 Kanehiko Yoneyama Prefabricated dam
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Inventor after: Luo Qianwen

Inventor after: Gaoyang Qiuye

Inventor before: Wei Qun

Inventor before: Zhang Guoxin

Inventor before: Liu Shangwei

Inventor before: Jiang Hua

Inventor before: Yin Weibo

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