CN107059800A - A kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used - Google Patents
A kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used Download PDFInfo
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- CN107059800A CN107059800A CN201710300459.7A CN201710300459A CN107059800A CN 107059800 A CN107059800 A CN 107059800A CN 201710300459 A CN201710300459 A CN 201710300459A CN 107059800 A CN107059800 A CN 107059800A
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- reinforcement
- dam
- reinforcement chain
- chain
- chain net
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000004575 stone Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 241001293511 Umbra Species 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used, the present invention is that the improvement of shake reinforcement technology scheme is offended and disobey with rude remarks to existing Earth and Rockfill Dam；Specific method is to use reinforcement chain net to substitute existing hard bar-mat reinforcement to adapt to the deformation characteristic of enrockment bulk solid construction time；Reinforcement chain net layering level is laid in the range of the reinforcement area height H of dam crest；Reinforcement chain net is located at the impervious core both sides in dam body respectively.Present invention, avoiding the problems such as the poor durability of reinforcement material, cracky or deformation, the connected mode of reinforcement node is also further optimized, site operation is facilitated.
Description
Technical field
The present invention relates to a kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used, belong to water conservancy and hydropower row
Industry earth and rockfill dam anti-seismic technology field.
Background technology
Extensively using core wall dam dash in Hydraulic and Hydro-Power Engineering, and the essential consideration earthquake effect of water retaining structure.Through pair
Earth and rockfill dam seimic disaster census is found：Most common failure modes are crack and deformation；Dam slope sliding, unstability are more rare, but engineering is pacified
Umbra rings big.It is preferred that dam material and expand dam body build in terms of earth and rockfill dam earthquake resistant construction economy it is poor.It is existing to study into
Fruit shows high Earth and Rockfill Dam to offend and disobey with rude remarks shake reinforcement that effectively to mitigate dam damaged.
By literature search, high-tech zones dam crest antidetonation reinforcement measure nearby has three classes：One is sash beam type formula antidetonation
Reinforcement technology, such as Tajikistan within the border exert lek core wall rockfill dam, China Luding power station engineering.Two be GSZ
Antidetonation reinforcement technology, such as China's smelting strangle rockfill dam with asphalt concrete core, Pubugou Project core-wall core wall rockfill dam, long sill may core-wall heap
The engineerings such as masonry dam.Three be stainless reinforcing bar material antidetonation reinforcement technology, such as China's Nuozhadu earth core rockfill dam, seedling tail core wall rockfill dam
Hydropower Project.
Earth and rockfill dam inside casing lattice beam reinforcement can be lifted by cast in situs or after prefabricated in advance, and sash beam arrangement progress is slower,
Influence dam filing progress.Sash beam arranges that the number of plies is typically less in dam, with native stone compatibility of deformation it is poor, interaction have
Limit, therefore its anti seismic efficiency needs further research.
GSZ spreading speed is very fast, material can with native stone compatibility of deformation, with preferable mutual rubbing action.Geotechnique
Grid is typically made by high molecular polymer, and its durability is poor.Meanwhile, the high impact forces during native stone rolling and placement
May occur GSZ damaged.
Stainless reinforcing bar material is because its durability is high, making is convenient and gradually grows up.But there is also with native stone compatible deformation
The shortcoming of difference：As dam facing band steel swells after the completion of dam construction, it is impossible to wrap up dam facing enrockment；And band steel also occurs in dam
With enrockment sliding phenomenon.
The content of the invention
It is an object of the present invention to provide a kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used, with
Existing hard bar-mat reinforcement is substituted using reinforcement chain net, construction filling craft is deformed with rockfill, so as to solve existing structure
With native stone compatible deformation difference shortcoming and overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
A kind of improved method of core wall dam anti-seismic structure of the present invention, this method is to offend and disobey with rude remarks shake reinforcement technology to existing Earth and Rockfill Dam
The improvement of scheme；Specific method uses reinforcement chain net to substitute existing hard bar-mat reinforcement to adapt to the enrockment bulk solid construction time
Deformation characteristic；Reinforcement chain net layering level is laid in the range of the reinforcement area height H of dam crest；Reinforcement chain net is located at dam respectively
Internal impervious core both sides.
For a kind of reinforcement chain net of the invention used in the above method, including by one group of elementary cell ring connection
Into the axis that is formed by connecting to reinforcement chain and from one group of elementary cell ring of suitable river to reinforcement chain；Axis exists to reinforcement chain
Horizontal plane is set in along river to reinforcement chain；In axis to reinforcement chain with being saved along river to the point of intersection of reinforcement chain with one
Removable cell rings replace axis to reinforcement chain or along river to the section elementary cell ring on reinforcement chain, pass through removable unit
Two sections of axis of intersection point both sides are linked together to reinforcement chain or suitable river and constitute reinforcement chain net by ring to reinforcement chain.
By adopting the above-described technical solution, the present invention is compared with prior art, the present invention can make construction filling craft can be with
Rockfill is deformed, and the problems such as efficiently avoid poor durability, cracky or the deformation of reinforcement material, it is also further
The connected mode of reinforcement node is optimized, site operation is facilitated.
Brief description of the drawings
Fig. 1 is the dam structure schematic diagram of the present invention；
Fig. 2 is the structural representation of reinforcement chain net in the present invention；
Fig. 3 is the position view of removable cell rings in two layers of reinforcement chain net；
Fig. 4 is the chain schematic diagram being made up of elementary cell ring and removable cell rings；
Fig. 5 is the fixed form schematic diagram of reinforcement chain net.
Marked in accompanying drawing：Reinforcement area, 4- impervious cores, 5- elementary cells at the top of 1- reinforcement chain nets, 2- dam bodys, 3-
Ring, the removable cell rings of 6-, 7- is along river to reinforcement chain, and 8- axis are to reinforcement chain, 9- dowels, 10- core wall dam dam shell rolling layers
Face.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limitation.
The improved method of a kind of core wall dam anti-seismic structure of the present invention, as shown in figure 1, this method is to existing Earth and Rockfill Dam
Offend and disobey with rude remarks the improvement of shake reinforcement technology scheme；Specific method is to use reinforcement chain net 1 to substitute existing hard bar-mat reinforcement to adapt to heap
The deformation characteristic of stone bulk solid construction time；The layering level of reinforcement chain net 1 is laid in the range of the top reinforcement area 3 of dam body 2；Plus
Muscle chain net 1 is located at the both sides of impervious core 4 in dam body 2 respectively.
For a kind of reinforcement chain net of the invention of the above method, as shown in Fig. 2 the reinforcement chain net 1 is included by one
The axis that the suitable river that group elementary cell ring 5 is formed by connecting is formed by connecting to reinforcement chain 7 and from one group of elementary cell ring 5 is to reinforcement
Chain 8；Axis to reinforcement chain 8 horizontal plane in along river to reinforcement chain 7；Axis to reinforcement chain 8 with along river to
The point of intersection of reinforcement chain 7 replaces axis to reinforcement chain 8 or along river on reinforcement chain 7 with the removable cell rings 6 of section
One section elementary cell ring 5, by removable cell rings 6 by two sections of axis of intersection point both sides to reinforcement chain 8 or along river to reinforcement chain
Bar 7, which links together, constitutes reinforcement chain net 1.
Embodiment
The problem of this example is solved be：Overcome existing earth and rockfill dam antidetonation reinforcement material durability or compatibility of deformation difference lack
There is provided a kind of new construction of the chain type reinforcement with compatibility of deformation for point.Need to carry out the portion of antidetonation reinforcement in earth and rockfill dam dam crest
Vertically and horizontally iron chains is arranged in position：Construction filling craft can be deformed with rockfill, allow the native stone particle in reinforcement position to occur under earthquake conditions
Local shake contracting, but iron chains muscle material limits excessive horizontal earthquake deformation, prevents crack in dam body.
This example is as shown in figure 1, this example is that dam in the improvement of shake reinforcement technology scheme, Fig. 1 is offended and disobey with rude remarks to existing Earth and Rockfill Dam
The shape of body 2 is identical with existing dam body, and the gradient of dam body upstream face and downstream face is also identical, and the bed course of dam body is also identical.
Difference is all to substitute all hard bar-mat reinforcements in Fig. 1 in the range of top reinforcement area 3 with the reinforcement chain net 1 of the present invention.
Reinforcement chain net 1 is as shown in Fig. 2 including the suitable river that is formed by connecting from one group of elementary cell ring 5 to reinforcement chain 7 and by one group of base
The axis that this cell rings 5 are formed by connecting is to reinforcement chain 8；Axis to reinforcement chain 8 horizontal plane in along river to reinforcement chain
Bar 7；Axis is replaced to adding with saving removable cell rings 6 with one to the point of intersection of reinforcement chain 7 along river to reinforcement chain 8 in axis
Muscle chain 8 or along river to the section elementary cell ring 5 on reinforcement chain 7, by removable cell rings 6 by two sections of axles of intersection point both sides
Line links together to reinforcement chain 7 to reinforcement chain 8 or suitable river and constitutes reinforcement chain net 1.The removable cell rings 6 such as Fig. 2
In partial enlarged drawing shown in, the removable two ends of cell rings 6 are not closed, and leave narrow slit.Can be by removable cell rings 6 by two sections of chains
The elementary cell ring 5 of bar termination links together.Along river to reinforcement chain 7 and along river between reinforcement chain 7 and axis is to adding
Muscle chain 8 equal to the spacing between reinforcement chain 8 with axis is a.Fig. 3 is removable cell rings in two layers of reinforcement chain net
Position view.As seen from Figure 3, the spacing between two layers of reinforcement chain net is h.Removable cell rings 6 between two layers are to interlock
Arrangement, the mesh of the intersection point on Fig. 3 upper stratas against lower floor.Fig. 4 is the chain being made up of elementary cell ring 5 and removable cell rings 6
Schematic diagram, chain can be to reinforcement chain 7 or axis to reinforcement chain 8 along river.From fig. 4, it can be seen that elementary cell ring
5 collapsible length are Δ t, and whole level is to the collapsible length T=Σ of iron chains (Δ t), to adapt to the deformation of dam construction phase in dam.
Arrangement of the chain type reinforced structure in dam body is shown in Fig. 2 and Fig. 3, all height in chain type reinforced structure reinforcement area 3 at the top of dam body
In the range of, spacing between layers is h.Crossover node is connected using removable cell rings 6, along overall length from river to reinforcement chain 7
Degree L can not go deep into impervious core 4.From Fig. 2 and Fig. 3, all crosspoints are connected with removable cell rings 6.
Reinforcement chain net 1 carries out the construction that paves after core wall dam dam shell rolling layers are filled in dam, as shown in figure 5, after paving
Answering pretension reinforcement chain net 1 just to fill during last layer dam shell earth and stone material, pretension can be using dowel 9 by reinforcement chain net 1
Core wall dam dam shell is fixed on to roll in aspect 10.Dam crest reinforcement region height H and length L are calculated as by core wall dam dynamic finite element
Fruit determines that reinforced length L should be greater than 1.5 times of dam slopes and calculate slip circle depth in dam（Impervious core can not be goed deep into）, reinforcement chain net 1
Interlamellar spacing h should combine dam shell rolling layers determine（Generally 1~5 dam shell rolling layers arrange one layer of reinforcement iron chains）.Dam facing adds
Muscle iron chains is constructed preferably before dam retaining, prevents the construction time from deforming and influenceing iron chains pretension protection effect.Elementary cell ring 5 and can
The singulated size of yuan of rings 6 can forge processing technology situation according to dam body static(al) deformation analysis achievement and material and adjust, but geometrical length
Generally meet 0.1m≤d≤0.3m, 0.3≤c/d≤1,0.01m≤e≤0.035m requirements.For the increase He of elementary cell ring 5
Snap-in force between removable cell rings 6 and native stone, can make matte processing in cell rings.Unit ring material uses normal carbon knot
Structure steel Q235 and its above strength materials, it is proposed that zinc-plated to reinforcement iron chains to handle to meet requirement for anticorrosion.This structure is not only
Suitable for water conservancy and hydropower industry centric wall dam dam crest antidetonation reinforcement technology, the anti-of the earth-rock works such as other face dams is applied also for
Shake reinforcement protection.
Claims (2)
1. a kind of improved method of core wall dam anti-seismic structure, it is characterised in that：This method is to offend and disobey with rude remarks shake to existing Earth and Rockfill Dam to add
The improvement of muscle technical scheme；Specific method is to use reinforcement chain net to substitute existing hard bar-mat reinforcement to apply to adapt to enrockment bulk solid
The deformation characteristic of duration；Reinforcement chain net layering level is laid in the range of the reinforcement area height H of dam crest；Reinforcement chain net is distinguished
Impervious core both sides in dam body.
2. a kind of reinforcement chain net for claim 1 methods described, it is characterised in that：Including by one group of elementary cell ring
（5）The suitable river being formed by connecting is to reinforcement chain（7）With by one group of elementary cell ring（5）The axis being formed by connecting is to reinforcement chain
（8）；Axis is to reinforcement chain（8）Horizontal plane in along river to reinforcement chain（7）Set；In axis to reinforcement chain（8）
With along river to reinforcement chain（7）Point of intersection with the removable cell rings of section（6）Axis is replaced to reinforcement chain（8）Or along river to
Reinforcement chain（7）On one section elementary cell ring（5）, pass through removable cell rings（6）By two sections of axis of intersection point both sides to reinforcement
Chain（8）Or along river to reinforcement chain（7）The composition that links together reinforcement chain net（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710300459.7A CN107059800A (en) | 2017-05-02 | 2017-05-02 | A kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710300459.7A CN107059800A (en) | 2017-05-02 | 2017-05-02 | A kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107059800A true CN107059800A (en) | 2017-08-18 |
Family
ID=59603947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710300459.7A Pending CN107059800A (en) | 2017-05-02 | 2017-05-02 | A kind of improved method of core wall dam anti-seismic structure and reinforcement chain net used |
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| Country | Link |
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| CN (1) | CN107059800A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2843454A1 (en) * | 1978-10-05 | 1980-04-17 | Thiele Fa August | Protective screen for quarry conveyor - consists of chain meshwork having rings in screen plane interconnected via chain links or lengths of chain |
| CN87103622A (en) * | 1987-05-14 | 1987-12-23 | 沈升日 | Build the method for dam with iron chain net, anchor and iron chains etc. |
| SU1663097A1 (en) * | 1989-06-08 | 1991-07-15 | Ярославский политехнический институт | Method and device for shutting off passage in earth-filled dam |
| CN2370103Y (en) * | 1999-01-14 | 2000-03-22 | 邰恩江 | Chain type net |
| JP2001064941A (en) * | 1999-08-26 | 2001-03-13 | Kumikawa Tekkosho:Kk | Building body |
| KR20020068936A (en) * | 2001-02-23 | 2002-08-28 | 김경호 | Coupling Structure of Vertical Steel Bar for Reinforced Earth Retaining-Wall Frame |
| JP2006316462A (en) * | 2005-05-11 | 2006-11-24 | Showa Kikai Shoji Kk | Block masonry retaining wall using chain, and concrete block for use therein |
| CN102605750A (en) * | 2012-01-11 | 2012-07-25 | 河海大学 | Grouting reinforcement and earthquake resisting method for earth and rockfill dam |
| CN102995619A (en) * | 2012-12-28 | 2013-03-27 | 泰安路德工程材料有限公司 | Highly smart LDTG composite geotechnical material and engineering monitoring system thereof |
| CN103236671A (en) * | 2013-05-21 | 2013-08-07 | 国家电网公司 | Cover plate for protecting submarine cable |
| CN103875481A (en) * | 2014-04-03 | 2014-06-25 | 岭南园林股份有限公司 | Mine side slope repairing component and repairing method |
| CN205000299U (en) * | 2015-10-10 | 2016-01-27 | 中国电建集团成都勘测设计研究院有限公司 | A earthquake -resistant structure for high earth -rock dam dam crest |
-
2017
- 2017-05-02 CN CN201710300459.7A patent/CN107059800A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2843454A1 (en) * | 1978-10-05 | 1980-04-17 | Thiele Fa August | Protective screen for quarry conveyor - consists of chain meshwork having rings in screen plane interconnected via chain links or lengths of chain |
| CN87103622A (en) * | 1987-05-14 | 1987-12-23 | 沈升日 | Build the method for dam with iron chain net, anchor and iron chains etc. |
| SU1663097A1 (en) * | 1989-06-08 | 1991-07-15 | Ярославский политехнический институт | Method and device for shutting off passage in earth-filled dam |
| CN2370103Y (en) * | 1999-01-14 | 2000-03-22 | 邰恩江 | Chain type net |
| JP2001064941A (en) * | 1999-08-26 | 2001-03-13 | Kumikawa Tekkosho:Kk | Building body |
| KR20020068936A (en) * | 2001-02-23 | 2002-08-28 | 김경호 | Coupling Structure of Vertical Steel Bar for Reinforced Earth Retaining-Wall Frame |
| JP2006316462A (en) * | 2005-05-11 | 2006-11-24 | Showa Kikai Shoji Kk | Block masonry retaining wall using chain, and concrete block for use therein |
| CN102605750A (en) * | 2012-01-11 | 2012-07-25 | 河海大学 | Grouting reinforcement and earthquake resisting method for earth and rockfill dam |
| CN102995619A (en) * | 2012-12-28 | 2013-03-27 | 泰安路德工程材料有限公司 | Highly smart LDTG composite geotechnical material and engineering monitoring system thereof |
| CN103236671A (en) * | 2013-05-21 | 2013-08-07 | 国家电网公司 | Cover plate for protecting submarine cable |
| CN103875481A (en) * | 2014-04-03 | 2014-06-25 | 岭南园林股份有限公司 | Mine side slope repairing component and repairing method |
| CN205000299U (en) * | 2015-10-10 | 2016-01-27 | 中国电建集团成都勘测设计研究院有限公司 | A earthquake -resistant structure for high earth -rock dam dam crest |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |