CN106245590B - Dam body seepage laminar composite, dam body seepage structure and its construction method - Google Patents
Dam body seepage laminar composite, dam body seepage structure and its construction method Download PDFInfo
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- CN106245590B CN106245590B CN201610802911.5A CN201610802911A CN106245590B CN 106245590 B CN106245590 B CN 106245590B CN 201610802911 A CN201610802911 A CN 201610802911A CN 106245590 B CN106245590 B CN 106245590B
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- laminar composite
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of dam body seepage laminar composite, dam body seepage structure and its construction methods, belong to hydraulic and hydroelectric engineering field.One kind is provided and is suitable for dam body seepage laminar composite and dam body seepage structure, can solve the problems such as crack occur because of deformation of the leakage preventing structure with dam body, and then ensure the anti-seepage effect of dam.The mode that the present invention is arranged by using casing play flexible and packing layer interlayer flexible, when being used for seepage control of dam, laminar composite can deform accordingly with the deformation of dam, and can effectively avoid impervious body the problem of crack occurs, it can thus be ensured that the anti-seepage effect of dam.Moreover, laminar composite, can also produce in batches in factory, therefore can effectively improve the efficiency of seepage control of dam construction, construction cost is reduced.In addition, the material of laminar composite and dam body has preferable interconnection property, delamination can effectively avoid；And in the leakage preventing structure that can also be used for concrete surface crack reparation.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering fields, more particularly in hydraulic and hydroelectric engineering dam body seepage control technique
Field, specifically a kind of dam body seepage laminar composite, dam body seepage structure and its construction method.
Background technique
In the prior art, mainly there are armored concrete, clay, pitch to the impervious body or impervious barrier structure of dam setting
Concrete, steel etc. several ways, and the shortcomings that these above-mentioned leakage preventing structures is to be difficult to adapt to antiseepage supporter or dam body
The moderate finite deformation of itself.Particularly with the height of dam gradually increased in recent years be greater than 200m be even greater than 300m rock-fill dams or
It is built for high dam on supper-deep overburdened layer, the deflection at each position of later period dam body is often larger；Therefore, using above-mentioned existing anti-
Infiltration mode is difficult to meet antiseepage requirement of dam body under the conditions of large deformation, is easy to go out because of deformation of the leakage preventing structure with dam body
The problems such as existing crack, and then lead to the case where leaking, cause antiseepage purpose to fail；And above-mentioned leakage preventing structure is constructed into
This is higher.In addition, there are also the leakage preventing structures for using composite geo-membrane, but since it is easily broken, aging, is asked by chemical attack etc.
Topic limitation, is generally only usually used in 20m high checkdam, the not super 100m of highest water blocking.
Summary of the invention
It is suitable for dam body seepage laminar composite the technical problem to be solved by the present invention is to provide one kind and dam body is anti-
Structure is seeped, can solve the problems such as crack occur because of deformation of the leakage preventing structure with dam body, and then ensure the anti-seepage effect of dam.Separately
Outside, the present invention also provides a kind of construction method of dam body seepage structure, construction efficiency can be improved, and then reduce construction cost.
The technical solution adopted by the present invention to solve the technical problems is: dam body seepage laminar composite, the layer
Shape composite material includes at least one layer of casing play and at least one layer of packing layer, and the casing play and packing layer are successively spaced setting；
The casing play is one layer of flexible layer made of being laid with as chemical fiber web, and described filler layer is by pitch or clay or gravelly soil
Or one layer of flexible layer made of polyurethane or epoxy resin laying；When being respectively arranged with packing layer in the two sides of same layer casing play
When, the packing layer positioned at the casing play two sides is mutually interconnected by the online hollow grid of the chemical fibre of this layer of casing play of composition
It connects.
Further, the material of the chemical fiber web is glass fibre, terylene, polyamide fibre, polypropylene fibre, acrylic fibers, polyvinyl chloride fibre, ammonia
At least one of synthetic fibre, carbon fiber and aramid fiber.
Further, every layer of casing play with a thickness of 0.2mm-1mm；Each layer of packing layer with a thickness of D, and D
Value range is 0.5mm-10mm.
Further, the casing play is at least provided with one layer, described filler layer is at least provided with two layers, in every layer of bone
The two sides of rack-layer are provided with one layer of packing layer.
Further, being provided with along the width direction of laminar composite through this layer of filler in every layer of packing layer
The gap of layer；In same packing layer, the length direction interval of laminar composite is provided with multiple gaps；Together
When, on the length direction along laminar composite, the gap in adjacent two layers packing layer is arranged in a staggered manner.
Further, each layer of packing layer with a thickness of D, the width in the gap is L, and has 0 < L≤2D.
Further, the layered S-shaped bending of composite material, and each layer of casing play and each layer of packing layer
S-shaped bending；When setting has the gap, the forniciform trend of S-shaped is consistent with the length direction in gap.
The beneficial effect of the laminar composite of dam body seepage described in aforementioned present invention is: using casing play flexible and soft
Property the setting of packing layer interlayer mode, and by using material specific for dam environment as packing layer, therefore
It obtains suitable for dam, and there is certain flexibility and sealing performance laminar composite.In this way, being used for seepage control of dam
When, laminar composite of the present invention can deform accordingly with the deformation of dam, can effectively avoid impervious body appearance
The problem of crack, it can thus be ensured that the anti-seepage effect of dam.In addition, laminar composite of the present invention, it can also be in factory
Batch production is constructed to transport dam to again after the finished product with one fixed width and length, therefore it is anti-effectively to improve dam
The efficiency of construction is seeped, construction cost is reduced.Moreover, laminar composite of the present invention is due to selecting specific packing layer,
The case where thus material of itself and dam body has preferable interconnection property, can effectively avoid layering generation.
In addition, including coating and dam body square on the cover layer is set the present invention also provides a kind of dam body seepage structure,
The dam body is accumulated by enrockment, impervious barrier, the impervious barrier is arranged in the upstream side of the dam body or inside dam body
The laminar composite as described in aforementioned present invention is laid with, and layered composite material extends to dam body from dam body top
Bottom end；When the S-shaped bending of layered composite material, the forniciform trend of S-shaped is vertical with dam body axis.
Further, further including concrete cut, the top of the concrete cut is connect with impervious barrier, coagulation
The bottom end of native cut-pff wall is deep into the horizon d being positioned over below layer after passing through coating；One is laid on the surface of impervious barrier
Layer concrete or block cobble protective layer.
Further, further including revetment, the revetment is laid on the bottom surface of protective layer.
Dam body seepage structure described in aforementioned present invention, by using laminar composite of the present invention, thus
So that the antiseepage of dam body is suitable for the corresponding deformation situation of dam body；And further by mixing laminar composite with corresponding
Solidifying soil cut-pff wall is connected, and can effectively improve the anti-seepage effect of dam entirety.
In addition, the present invention also provides a kind of dam body seepage construction method, for dam body described in aforementioned present invention
Leakage preventing structure includes the following steps,
A, dam embankment construction is carried out, after the completion of dam construction, the surface of dam body upstream side is arranged to S-shaped bumps
Shape, and the concavo-convex trend of the S-shaped is from the bottom of dam body stream side surface to top；
B, the laying casing play and packing layer being successively spaced on the concavo-convex surface of S-shaped are to form impervious barrier, and every layer
Casing play and every layer of packing layer are consistent with the concavo-convex curved shape of S-shaped；Or in the concavo-convex upper laying claim 1 to 7 of S-shaped
Any one of described in laminar composite as impervious barrier, and make laminar composite and the concavo-convex curved shape of S-shaped
Unanimously；
C, a layer concrete or block cobble protective layer are laid on the surface of impervious barrier.
The beneficial effect of dam body seepage construction method of the present invention is: work progress is simple, can be applied according to scene
Work situation uses live successively laying construction to be laid with to form impervious barrier or directly adopt the laminar composite of finished product
To form impervious barrier；Construction efficiency thus can be improved, reduce construction cost.
Detailed description of the invention
Fig. 1 is the top view of the invention dam body seepage laminar composite；
Fig. 2 is the 3-D view of Fig. 1；
Cross-sectional view when Fig. 3 is laminar composite S-shaped bending；
Fig. 4 be laminar composite be in tabular when cross-sectional view；
Fig. 5 is the Longitudinal cross section schematic of laminar composite；
Fig. 6 is the top view of single layer casing play；
Fig. 7 is the structural schematic diagram of impervious barrier to be arranged in the upstream side of dam body, and corresponding laminar composite is S-shaped
Bending；
Fig. 8 is the enlarged diagram of regional area A in Fig. 7；
Fig. 9 by flat laminar composite in Fig. 7 by replacing structure when the forniciform laminar composite of S-shaped to show
It is intended to；
Figure 10 is the structural schematic diagram of impervious barrier to be arranged at the middle part of dam body, and corresponding laminar composite is S-shaped
Bending；
Figure 11 is the enlarged diagram of regional area B in Figure 10；
Figure 12 by flat laminar composite by being replaced structure when the forniciform laminar composite of S-shaped in Figure 10
Schematic diagram；
In the figure, it is marked as casing play 1, packing layer 2, hollow grid 3, gap 4, coating 5, dam body 6, laminar composite
7, dam body axis 8, concrete cut 9, horizon d 10, impervious barrier 11, protective layer 12, revetment 13, the thickness D of packing layer, seam
The width L of gap.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1 to Fig. 6, dam body seepage laminar composite of the present invention, layered composite material
Including at least one layer of casing play 1 and at least one layer of packing layer 2, the casing play 1 and packing layer 2 are successively spaced setting；The bone
Rack-layer 1 is one layer of flexible layer made of being laid with as chemical fiber web, and described filler layer 2 is by pitch or clay or gravelly soil or to gather
One layer of flexible layer made of amine rouge or epoxy resin are laid with；When being respectively arranged with packing layer 2 in the two sides of same layer casing play 1
When, the packing layer 2 positioned at 1 two sides of casing play is mutual by the online hollow grid 3 of the chemical fibre of this layer of casing play 1 of composition
Connection.
Wherein, casing play 1 and packing layer 2 are respectively set to the layer structure with certain flexibility, why require its tool
There is certain flexibility, its purpose is to make finally obtained laminar composite integrally there is certain flexibility, so i.e.
The case where being suitable for the deformation of dam body later period；And then laminar composite is avoided to occur crack problem in deformation process, it is ensured that anti-
Seep the validity of effect.More specifically, in order to realize above-mentioned requirement flexible while the antiseepage demand in view of being directed to dam, into
It is one layer of flexible layer made of being laid with as pitch or clay or gravelly soil or polyurethane or epoxy resin that packing layer 2, which is arranged, in one step,
It is one layer of flexible layer made of being laid with as chemical fiber web that casing play 1 is arranged simultaneously.Due to above-mentioned packing layer 2 use material with
The material of dam body has preferable switching performance, therefore, when using laminar composite of the present invention as leakage preventing structure,
It can effectively avoid the case where being layered.
The effect of heretofore described casing play 1 is mainly following 3 points, and first is, have certain flexibility, it can be achieved that
It is deformed therewith with the deformation of country rock；Second, pass through the casing play 1 for specifically chemical fiber web being used to be made into, it is ensured that the layer knot
Structure has biggish intensity and non-deformability；Third, by using netted setting, can effectively improve casing play 1 with it is corresponding
Connection relationship between packing layer 2, and the hollow grid 3 that also can pass through on casing play 1 is realized between the packing layer 2 of two sides
Effectively connection can guarantee the fastness of laminar composite entirety in this way, avoid dividing between each layer of laminar composite
Layer situation.
The effect of heretofore described packing layer 2 is mainly following 3 points, first, there is certain flexibility, it can be achieved that with
The deformation of country rock and deform therewith, thus can avoid crack occur；Second, anti-seepage effect, therefore filler are played by packing layer
Layer needs to select the material with preferable cohesiveness and water-resisting property, in the present invention specifically using pitch or clay or gravelly soil or
One of which in polyurethane or epoxy resin, especially to use pitch or clay or gravelly soil to be excellent, advantage is for big
The concrete condition of dam antiseepage, using above-mentioned material, it is ensured that sealing performance, while material cost is relatively low, is especially adopting
It is even more low in cost when with pitch or clay or gravelly soil, and draw materials and be easy；Third, due to dam body materials be generally enrockment,
The earth rock materials such as gravel, therefore the material of the material of above-mentioned packing layer 2 and dam body has preferable switching performance, can effectively avoid
The case where being layered.
In addition, composition casing play 1 chemical fiber web material can be selected glass fibre, terylene, polyamide fibre, polypropylene fibre, acrylic fibers,
At least one of polyvinyl chloride fibre, spandex, carbon fiber and aramid fiber；Casing play 1 should have some strength, especially tensile strength.Cause
The flexibility for needing to have certain for packing layer 2, thus by select above-mentioned material packing layer 2 after, tensile strength often compared with
It is weak, at this point, passing through the structure of setting casing play 1 and packing layer 2, it is ensured that the intensity of laminar composite entirety, it is especially anti-
Tensile strength, and then there is crack after avoiding the problem that laminar composite tension.
It more specifically, is chemical fibre stratum reticulare structure, thickness is usually by chemical fiber web for each layer of casing play
The material thickness of layer determines that its usual thickness only has 0.2mm-1mm or so；And for the thickness D of each layer of packing layer 2, not
Have a stringent limitation, generally can value range be 0.5mm-10mm；Specifically can also according to the actual situation depending on.Moreover, for skeleton
The setting number of plies of layer 1 and packing layer 2, it is not restricted, in order to play the protecting effect to casing play 1, it is arranged under normal circumstances
At packing layer 2 the number of plies than casing play 1 the number of plies more than one layer of structure, be provided with one layer in the two sides of every layer of casing play 1 and fill out
The bed of material 2.As one layer of casing play 1 is at least arranged, and two layers of packing layer 2 is set.It certainly, can also be according to the final need of laminar composite
The depth information of the thickness wanted and every layer of casing play 1 and packing layer 2 come integrate setting casing play 1 and packing layer 2 the number of plies with
And the depth information of single layer.
In addition, on the basis of the above, it can also be further in every layer of packing layer 2, along the width direction of laminar composite
It is provided with through the gap 4 of this layer of packing layer 2；In same packing layer 2, along setting for the length direction interval of laminar composite
It is equipped with multiple gaps 4；Seam meanwhile on the length direction along laminar composite, in adjacent two layers packing layer 2
Gap 4 is arranged in a staggered manner；It specifically can refer to situation shown in attached drawing.The effect in above-mentioned setting gap 4 is to allow same layer packing layer 2
The interior part positioned at 4 two sides of gap can play certain buffer function, and then reinforcing filler when deforming by gap 4
The non-deformability, and the finally non-deformability of enhancing laminar composite in the longitudinal direction in the longitudinal direction of layer 2.And into
The gap 4 being located in adjacent two layers packing layer 2 is arranged in a staggered manner one step, is then to guarantee lamellar composite material as shown in Figure 5
Expect whole leakproofness and structural strength.More specifically, under normal circumstances, when each layer of packing layer 2 is with a thickness of D, the seam
When the width of gap 4 is L, 0 < L≤2D may be provided with.
In addition, the structure in above-mentioned setting gap 4, purpose is mainly to enhance laminar composite in the longitudinal direction anti-
Deformability.And the non-deformability for laminar composite in the direction of the width, the present invention can be further by such as dividing into
Set: as shown in Figures 2 and 3, by the S-shaped bending of layered composite material, and each layer of casing play 1 and each layer are filled out
The S-shaped bending of the bed of material 2；When setting has the gap 4, the forniciform trend of S-shaped is consistent with the length direction in gap 4.
Certainly, in the S-shaped bending of laminar composite among the above, the specific forniciform trend of S-shaped refers to such as Fig. 2 and Fig. 3
In corresponding arrow direction.In this way, when needed, can be in by the structure and/or setting laminar composite that gap 4 is arranged
The forniciform structure of S-shaped enhances the corresponding non-deformability of laminar composite.
In addition, dam body seepage structure of the present invention, including coating 5 and the dam body 6 of 5 top of coating is set,
The dam body 6 is accumulated by enrockment, and impervious barrier 11 is arranged in the upstream side of the dam body 6 or inside dam body 6, described anti-
The laminar composite 7 as described in aforementioned present invention of infiltration layer 11 is laid with, and layered composite material 7 prolongs from 6 top of dam body
Extend to the bottom end of dam body 6；When the S-shaped bending of layered composite material, the forniciform trend of S-shaped and dam body axis
8 is vertical.Wherein, so-called dam body 6 is accumulated by enrockment, refers to that such dam body is generally direct by earth rock materials such as enrockment, gravels
Accumulation is accumulated after rolling, therefore its barrier performance is poor, so just needing to be arranged corresponding impervious barrier structure.
Moreover, dam body seepage structure of the present invention, the dam for being particularly suitable for high dam or building on deep covering layer；Certainly,
In the seepage control project that theoretically can also be used for weir or other common dam bodys etc..
As for the specific setting position of impervious barrier 11, under normal circumstances, it can be arranged in the upstream side of dam body 6, such as Fig. 7 to figure
Situation shown in 9, or impervious barrier 11 can be set in the middle position inside dam body 6, as shown in Figure 10 to 12.Moreover, by
It is used as impervious barrier 11 in use laminar composite 7 of the present invention, therefore may make impervious barrier 11 that there is stronger resistance
Shape ability also can avoid impervious barrier 11 and crack occur even if biggish deformation occurs for dam body, thus can play stronger anti-
Seep effect.
In addition, further include concrete cut 9 under normal circumstances, the top of the concrete cut 9 and impervious barrier 11
Connection, the bottom end of concrete cut 9 are deep into the horizon d 10 for being positioned over 5 lower section of layer after passing through coating 5.Concrete
The effect of cut-pff wall 9 is mainly played to the antiseepage in coating 5；And the above-mentioned impervious barrier 11 being arranged in dam body 6 has been then
To the antiseepage to dam body 6, therefore, by the way that concrete cut 9 and impervious barrier 11 to be attached, whole antiseepage effect can be enhanced
Fruit.In addition, when impervious barrier to be generally arranged in the upstream side of dam body, can further exist to play the protection to impervious barrier 11
The surface of impervious barrier 11 is laid with a layer concrete or block cobble protective layer 12.In addition it can be also laid in the bottom surface of protective layer 12
One layer of revetment 13.
Specifically, as shown in figures 7 and 9, for impervious barrier 11 is arranged in the upstream side of dam 6, and corresponding in Fig. 7 it is
It is arranged to forniciform 11 structure of impervious barrier of S-shaped, and Fig. 9 is then using flat impervious barrier 11.And such as Figure 10 and Figure 12 institute
Show, for impervious barrier 11 is arranged in the medium position of dam 6, and corresponding in Figure 10 is to be arranged to the forniciform impervious barrier of S-shaped
11 structures, and Figure 12 is then using flat impervious barrier 11.
It is formed in addition, laminar composite 7 of the present invention can carry out laying construction at the scene of dam, it can also be
It is produced as transporting to dam again after the finished product with one fixed width and length in factory being laid with.The present invention provides one kind big
The construction method that dam is laid with, includes the following steps:
A, 6 filling construction of dam body is carried out, after the completion of dam body 6 is constructed, it is recessed that the surface of 6 upstream side of dam body is arranged to S-shaped
Convex, and the concavo-convex trend of the S-shaped is from the bottom of 6 stream side surface of dam body to top；
B, the laying casing play 1 and packing layer 2 being successively spaced on the concavo-convex surface of S-shaped to form impervious barrier 11, and
Every layer of casing play 1 and every layer of packing layer 2 are consistent with the concavo-convex curved shape of S-shaped；Or it is wanted in the concavo-convex upper laying right of S-shaped
Laminar composite 7 described in asking any one of 1 to 7 is used as impervious barrier 11, and keeps laminar composite 7 and S-shaped concavo-convex
Curved shape it is consistent；
C, a layer concrete or block cobble protective layer 12 are laid on the surface of impervious barrier 11.
At that time, it is directed to be laid with the Specific construction mode of impervious barrier 11 in the upstream side of dam body 6 in above-mentioned steps A, such as
When fruit needs the medium position by impervious barrier setting to dam body 6, it can also be replaced by the form of construction work of phase, such as first build dam body
Then the wall of 6 sides carries out the construction of impervious barrier 11, the wall for carrying out 6 other side of dam body again later is built.
It is casing play 1 or packing layer 2 as the first layer being laid on the concavo-convex surface of S-shaped in addition, in stepb,
It is not strictly necessary that under normal circumstances, can first be laid with one layer of packing layer 2, and according to " packing layer 2- casing play 1- packing layer 2-
The paving mode of casing play 1- packing layer 2 ...-casing play 1- packing layer 2 " is laid with；Under such paving mode, packing layer 2
Always the protecting effect to casing play 1 will can be played in this way than more than 1 one layers of casing play.
Certainly, it if need to carry out the construction of concrete cut 9 in above-mentioned construction method, should be applied above-mentioned
It is carried out before the step A of work method.
Dam body seepage laminar composite described in aforementioned present invention, theoretically, in addition to can be used for the anti-of dam body
It seeps outside engineering, it can also be used in the leakage preventing structure of concrete surface crack reparation, such as in core wall dam concrete cover or build
In the concrete structures such as the gallery on deep covering layer, since basic constraint is big, Construction control is unfavorable, temperature change, coagulation
The influence of a variety of causes such as native aggregate difference, and it is bad in the antiseepage that concrete surface generates crack and then influence concrete structure
When, dam body seepage laminar composite of the present invention can also be used for repairing such crack, can also effectively repair
Multiple crack, while playing extraordinary anti-seepage effect.
Claims (9)
1. dam body seepage laminar composite, it is characterised in that: layered composite material includes at least one layer of casing play (1)
With at least one layer of packing layer (2), the casing play (1) and packing layer (2) are successively spaced setting；The casing play (1) is by changing
One layer of flexible layer made of web is laid with is learned, described filler layer (2) is by pitch or clay or gravelly soil or polyurethane or ring
One layer of flexible layer made of oxygen resin is laid with；When being respectively arranged with packing layer (2) in the two sides of same layer casing play (1), position
The online hollow grid (3) of chemical fibre that packing layer (2) in casing play (1) two sides passes through this layer of casing play (1) of composition
It is connected with each other；In every layer of packing layer (2), it is provided with along the width direction of laminar composite through this layer of packing layer (2)
Gap (4)；In same packing layer (2), the length direction interval of laminar composite is provided with multiple gaps
(4)；Meanwhile on the length direction along laminar composite, the gap (4) in adjacent two layers packing layer (2), which is staggered, to be set
It sets.
2. dam body seepage laminar composite as described in claim 1, it is characterised in that: the material of the chemical fiber web
For at least one of glass fibre, terylene, polyamide fibre, polypropylene fibre, acrylic fibers, polyvinyl chloride fibre, spandex, carbon fiber and aramid fiber.
3. dam body seepage laminar composite as described in claim 1, it is characterised in that: the thickness of every layer of casing play (1)
For 0.2mm-1mm；Each layer of packing layer (2) with a thickness of D, and the value range of D is 0.5mm-10mm.
4. dam body seepage laminar composite as described in claim 1, it is characterised in that: the casing play (1) at least sets
It is equipped with one layer, described filler layer (2) is provided with one layer of packing layer at least provided with two layers, in the two sides of every layer of casing play (1)
(2)。
5. dam body seepage laminar composite as described in claim 1, it is characterised in that: the thickness of each layer of packing layer (2)
Degree is D, and the width of the gap (4) is L, and has 0 < L≤2D.
6. the dam body seepage laminar composite as described in any one of claims 1 to 5, it is characterised in that: layered
The S-shaped bending of composite material, and each layer of casing play (1) and each layer of S-shaped bending of packing layer (2)；Work as setting
When having the gap (4), the forniciform trend of S-shaped is consistent with the length direction of gap (4).
7. dam body seepage structure, including coating (5) and the dam body (6) being arranged above coating (5), the dam body (6) by
Enrockment is accumulated, it is characterised in that: in the upstream side of the dam body (6) or inside dam body (6), impervious barrier (11) are set,
Impervious barrier (11) laminar composite as described in any one of the claims 1 to 6 (7) is laid with, the layer
Shape composite material (7) extends to the bottom end of dam body (6) from dam body (6) top；When the S-shaped bending of layered composite material
When, the forniciform trend of S-shaped is vertical with dam body axis (8).
8. dam body seepage structure as claimed in claim 7, it is characterised in that: further include concrete cut (9), the coagulation
The top of native cut-pff wall (9) is connect with impervious barrier (11), and the bottom end of concrete cut (9) is deep into after passing through coating (5)
It is positioned over the horizon d (10) below layer (5) Nei, is laid with a layer concrete or the protection of block cobble on the surface of impervious barrier (11)
Layer (12).
9. dam body seepage construction method, it is characterised in that: using dam body seepage structure described in the claims 7 or 8,
Include the following steps,
A, dam body (6) filling construction is carried out, after the completion of dam body (6) construct, the surface of dam body (6) upstream side is arranged to S-shaped
It is concavo-convex, and the concavo-convex trend of the S-shaped is from the bottom of dam body (6) stream side surface to top；
B, the laying casing play (1) and packing layer (2) being successively spaced on the concavo-convex surface of S-shaped to be formed impervious barrier (11), and
And every layer of casing play (1) and every layer of packing layer (2) are consistent with the concavo-convex curved shape of S-shaped；Or in the concavo-convex upper laying of S-shaped
Laminar composite described in any one of claims 1 to 7 (7) is used as impervious barrier (11), and makes laminar composite (7)
It is consistent with the concavo-convex curved shape of S-shaped；
C, a layer concrete or block cobble protective layer (12) are laid on the surface of impervious barrier (11).
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| CN107326862A (en) * | 2017-08-25 | 2017-11-07 | 绵阳飞远科技有限公司 | Small-sized dam skin glass fibrous webs |
| CN110524985A (en) * | 2019-08-06 | 2019-12-03 | 衢州艾科科技有限公司 | A kind of epoxy earth material and preparation method thereof of three fiber composites enhancing |
| CN110965524A (en) * | 2019-11-14 | 2020-04-07 | 湖南省汇杰勘测设计股份有限公司 | Reservoir seepage-proofing material and construction method |
| CN114908709A (en) * | 2022-06-30 | 2022-08-16 | 山东建通土工材料有限公司 | Dam seepage prevention structure |
| CN115198699A (en) * | 2022-07-28 | 2022-10-18 | 三峡大学 | Water seepage prevention structure for hydraulic and hydroelectric engineering construction and construction method thereof |
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| CN201943046U (en) * | 2010-11-30 | 2011-08-24 | 亓进华 | Seepage-prevention high-strength composite cover fabric for water reservoir |
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