CN105155472B - Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure - Google Patents
Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure Download PDFInfo
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Abstract
The invention discloses a dam foundation anti-seepage structure of a deep overlying layer earth-rock dam and a construction method of the dam foundation anti-seepage structure. The dam foundation anti-seepage structure of the deep overlying layer earth-rock dam comprises a suspension type poured wall section and a grouting section. The suspension type poured wall section is arranged inside an overlying layer, and the upper end of the suspension type poured wall section is connected with a grouting gallery. The grouting section is arranged inside the overlying layer and base rocks. The upper end and the lower end of the grouting section are connected with the suspension type poured wall section and the base rocks respectively. The construction method is used for constructing the dam foundation anti-seepage structure of the deep overlying layer earth-rock dam. Compared with an existing anti-seepage structure adopting a total-closed concrete anti-seepage wall, the anti-seepage structure is mainly composed of the suspension type poured wall section and the grouting section, and construction cost is low; only the suspension type poured wall section needs to be poured, the pouring depth is small, the construction difficulty is low, and the pouring quality can be guaranteed easily; the grouting section is constructed through the grouting gallery, construction is convenient, and grouting construction and filling of an earth-rock dam body can be conducted simultaneously, so that linear construction period occupied by the construction of the whole anti-seepage structure is short.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering field, and in particular to a kind of deep covering layer Earth and Rockfill Dam based moisture barrier structure and
Its construction method.
Background technology
In deep covering layer earth and rockfill dam, concrete cut is more reliable seepage prevention of dam founda structure.It is existing deep
Coating Earth and Rockfill Dam based moisture barrier structure is generally the totally-enclosed concrete cut arranged in coating, the cut-pff wall wall bottom
Weak 0.5～1.0m of weathered rockses is usually embedded, its construction costs is general higher；And, coating depth is bigger, and unit body of wall is made
Valency is higher, and difficulty of construction is bigger, and wall quality is also difficult to ensure that.Additionally, existing leakage preventing structure needs to be filled out in earth and rockfill dam dam body
Construction is completed before building, the construction period is longer, take the straight line duration.
The content of the invention
The technical problem to be solved in the present invention be to provide it is a kind of be easy to construction and the relatively low deep covering layer earth and rockfill dam of cost
Seepage prevention of dam founda structure.
The technical solution adopted for the present invention to solve the technical problems is：Deep covering layer Earth and Rockfill Dam based moisture barrier structure,
Walling section and grout compartment are poured including suspension type；The suspension type is poured walling section and is arranged in coating, its upper end and irrigation gallery
It is connected；The grout compartment is arranged in coating and basement rock, and walling section and basement rock phase are poured respectively in its upper and lower side two ends with suspension type
Even.
It is further that the suspension type pours the pre-embedment grouting pipe being provided with walling section for construction grouting section, described
The bottom of walling section is poured positioned at suspension type with the inner space of irrigation gallery, lower end in the upper end of pre-embedment grouting pipe.
It is further that the pre-embedment grouting pipe includes spaced two row, often arranges pre-embedment grouting pipe mainly by two
More than root the pre-embedment grouting pipe composition that walling segment length direction is arranged side by side is poured along suspension type, and the pre-embedment grouting pipe in two rows is wrong
Position is arranged.
It is further that the suspension type is poured in the relative water resisting layer that the bottom of walling section is stretched in coating；It is described
Grout compartment includes blanket grouting section and basement rock grout compartment；The basement rock grout compartment is arranged in basement rock；The blanket grouting
The top bottom of pouring walling section with suspension type of section is connected, the lower end of blanket grouting section be embedded in basement rock it is interior and with basement rock grout compartment
Link together.
It is further that the suspension type is poured walling section and formed by concreting, the grout compartment is by grout curtain shape
Into.
It is further that the grout hole for blanket grouting section of constructing, the grout hole are additionally provided with the coating
The inner space of top and irrigation gallery, bottom is located in basement rock.
It is further that the blanket grouting section pours pre-embedment grouting pipe in walling section and intratectal by suspension type
Grout hole is in the milk to be formed；The grout hole includes pouring two rows of walling section upstream and downstream side positioned at suspension type respectively, often arranges grout hole
Mainly pour the grout hole that walling segment length direction is arranged side by side along suspension type by two or more to constitute.
Present invention also offers a kind of construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure, above-mentioned for constructing
Deep covering layer Earth and Rockfill Dam based moisture barrier structure, comprise the following steps：
A, pouring hole is set downwards by foundation plane in coating, the depth of the depth of pouring hole less than coating；Pouring
Setting pre-embedment grouting pipe in hole is built, and makes the lower end of pre-embedment grouting pipe in the bottom of pouring hole；
B, suspension type is poured from bottom to up in pouring hole pour walling section, arrange and hang on foundation plane after the completion of pouring
It is hanging to pour the connected irrigation gallery in walling section upper end, and make the upper end of pre-embedment grouting pipe and the inner space of irrigation gallery；
C, it is in the milk into coating and basement rock by pre-embedment grouting pipe, forms upper and lower side two ends and pour walling with suspension type respectively
The grout compartment that section is connected with basement rock.
It is further in step a, till pouring hole is drilled into the relative water resisting layer in coating Nei, to be poured using concrete
Build suspension type and pour walling section；
In step c, grout curtain is carried out by pre-embedment grouting pipe, the grouting into basement rock forms basement rock grout compartment, to covering
To form that the bottom for pouring walling section with suspension type in top is connected, lower end is embedded in basement rock interior and be connected to basement rock grout compartment for grouting in layer
Blanket grouting section together.
It is further that step b also includes, the filling in basement rock is located at by the down-set two rows bottom in the bottom of irrigation gallery
Slurry hole, two row's grout holes pour walling section upstream and downstream side positioned at suspension type respectively, often arrange grout hole mainly by two or more along outstanding
It is hanging to pour the grout hole composition that walling segment length direction is arranged side by side；
Step c is also included, is carried out to coating by grout hole while being in the milk into coating by pre-embedment grouting pipe
Grout curtain, makes grouting enter intratectal serosity and is combined together to form integrally-built blanket grouting section, and makes covering
The connecting length that layer grout compartment pours walling section with suspension type is 10～20m.
The invention has the beneficial effects as follows：Compared with the existing leakage preventing structure using totally-enclosed concrete cut, this is prevented
Ooze that structure mainly pours walling section by suspension type and grout compartment is constituted, construction costs is relatively low；Only suspension type pours walling section and needs to pour,
Depth as shallow is poured, difficulty of construction is less, beneficial to guarantee pouring quality；Grout compartment is constructed by irrigation gallery, construction party
Just, and grouting construction can be filled while carry out with earth and rockfill dam dam body, the construction for making whole leakage preventing structure takes straight line short time limit.
Description of the drawings
Fig. 1 is the enforcement structural representation of deep covering layer Earth and Rockfill Dam based moisture barrier structure in the present invention；
It is labeled as in figure：Suspension type pours walling section 1, pre-embedment grouting pipe 11, grout compartment 2, blanket grouting section 21, grout hole
211st, basement rock grout compartment 22, coating 3, relative water resisting layer 31, foundation plane 32, irrigation gallery 4, basement rock 5, base cover boundary line 6.
In figure the direction of arrow be along river to.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, deep covering layer Earth and Rockfill Dam based moisture barrier structure, including suspension type pours walling section 1 and grout compartment 2；
The suspension type is poured walling section 1 and is arranged in coating 3, and its upper end is connected with irrigation gallery 4；The grout compartment 2 is arranged on and covers
In cap rock 3 and basement rock 5, walling section 1 is poured respectively at its upper and lower side two ends with suspension type and basement rock 5 is connected.Wherein, suspension type pours walling
Section 1 for pouring construction cut-pff wall wall section, its depth is less than the depth of coating 3, and construction costs is relatively low, difficulty of construction phase
To less；When construction suspension type pours walling section 1, generally a row or multi-row pouring hole is bored downwards in coating 3 by foundation plane 32
Poured, or groove is poured in the interior excavation of coating 3 by foundation plane 32 downwards and poured.Suspension type is poured walling section 1 and is constructed
After the completion of, generally pour to be arranged on the foundation plane 32 of the surface of walling section 1 in suspension type and pour what the upper end of walling section 1 was connected with suspension type
Irrigation gallery 4, irrigation gallery 4 can make the construction of grout compartment 2 and the same stepping of filling construction of earth and rockfill dam dam body after the completion of constructing
OK, it is easy to constructing operation and saves the duration.Grout compartment 2 is formed by grouting construction, is generally arranged at suspension type and is poured walling section below 1
Coating 3 in and basement rock 5 in；During construction grouting section 2, generally bore a row or multi-row in coating 3 downwards by foundation plane 32
Grout hole is in the milk, or is in the milk by arranging grout pipe in coating 3；During grouting construction, the upper of grout compartment 2 is made
End is poured walling section 1 and carries out certain overlap joint with suspension type, is made in the embedded basement rock 5 in lower end of grout compartment 2.
For the ease of the construction of grout compartment 2, then walling section 1 is interior to be provided with for constructing as shown in figure 1, the suspension type is poured
The pre-embedment grouting pipe 11 of grout compartment 2, the upper end of the pre-embedment grouting pipe 11 and the inner space of irrigation gallery 4, pre-embedment grouting pipe
The bottom of walling section 1 is poured positioned at suspension type in 11 lower end.Because the upper end of pre-embedment grouting pipe 11 connects with the inner chamber of irrigation gallery 4
It is logical, so the grouting construction of grout compartment 2 can be carried out in irrigation gallery 4, it does not interfere with each other with filling for earth and rockfill dam dam body, it is completed
The ruuning situation of the leakage preventing structure can be monitored by irrigation gallery 4 afterwards, and can be by pre-embedment grouting pipe 11 to the supplementary irrigation of grout compartment 2.
Preferably, the pre-embedment grouting pipe 11 includes spaced two row, often arranges pre-embedment grouting pipe 11 mainly by more than two edges
Suspension type is poured the pre-embedment grouting pipe 11 that the length direction of walling section 1 is arranged side by side and is constituted, and the pre-embedment grouting pipe 11 in two rows misplaces
Arrange.
Used as a preferred embodiment of the present invention, then as shown in figure 1, the bottom that the suspension type pours walling section 1 stretches to
In relative water resisting layer 31 in coating 3；The grout compartment 2 includes blanket grouting section 21 and basement rock grout compartment 22；The base
Rock grout compartment 22 is arranged in basement rock 5；The bottom that walling section 1 is poured in the top of the blanket grouting section 21 with suspension type is connected,
Link together in the embedded basement rock 5 in the lower end of blanket grouting section 21 and with basement rock grout compartment 22.Suspension type is poured under walling section 1
Portion is stretched in relative water resisting layer 31, and the part of coating 3 that can be preferably higher to permeability rate carries out antiseepage, while can either
The antiseepage requirement of the deep covering layer dam foundation is met in combination with grout compartment 2, makes suspension type pour the depth of walling section 1 in reasonable again
In the range of, beneficial to further reduction engineering cost, and save the duration.Blanket grouting section 21 can either ensure the He of grout compartment 2
Suspension type pours the connection effect of walling section 1, and anti-seepage effect of the grout compartment 2 in coating 3 is ensure that again；Basement rock grout compartment 22
Ensure that the connection effect of grout compartment 2 and basement rock 5.Preferably, the suspension type is poured walling section 1 and is formed by concreting,
The grout compartment 2 is formed by grout curtain.
In order to improve the company that anti-seepage effect and grout compartment 2 of the grout compartment 2 in coating 3 pours walling section 1 with suspension type
Connect effect, then as shown in figure 1, be additionally provided with for the grout hole 211 of blanket grouting section 21 of constructing in the coating 3, it is described
The top of grout hole 211 is located in basement rock 5 with the inner space of irrigation gallery 4, bottom.Specifically, the blanket grouting section
21 are poured the grout hole 211 in pre-embedment grouting pipe 11 and coating 3 in walling section 1 by suspension type is in the milk and is formed；The grout hole
211 include pouring two rows of the upstream and downstream side of walling section 1 positioned at suspension type respectively, often arrange grout hole 211 mainly by two or more edge
Suspension type is poured the grout hole 211 that the length direction of walling section 1 is arranged side by side and is constituted；Generally, the dislocation of grout hole 211 in two rows sets
Put.Can not only strengthen the thickness of blanket grouting section 21 by two row's grout pipes 211, improve its anti-seepage effect, while can also
Enough increase blanket grouting section 21 and pour the connecting length of walling section 1 with suspension type.
The construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure, for the deep covering layer earth and rockfill dam for constructing above-mentioned
Seepage prevention of dam founda structure, comprises the following steps：
A, pouring hole is set downwards by foundation plane 32 in coating 3, the depth of the depth of pouring hole less than coating 3；
Pre-embedment grouting pipe 11 is set in pouring hole, and makes the lower end of pre-embedment grouting pipe 11 in the bottom of pouring hole；Pouring hole is set
During, drill in batches first, then all pouring holes are connected；Generally pouring hole be drilled in coating 3 it is relative every
Till in water layer 31, make to pour the back suspended bottom for pouring walling section 1 in relative water resisting layer 31；Typically poured using concrete
Build suspension type and pour walling section 1；
B, pour suspension type in pouring hole and pour walling section 1, arrange on foundation plane 32 after the completion of pouring and poured with suspension type
The connected irrigation gallery 4 in the upper end of walling section 1, and make the upper end of pre-embedment grouting pipe 11 and the inner space of irrigation gallery 4；
C, it is in the milk into coating 3 and basement rock 5 by pre-embedment grouting pipe 11, forms upper and lower side two ends and pour with suspension type respectively
The grout compartment 2 that walling section 1 is connected with basement rock 5；General, grout curtain is carried out by pre-embedment grouting pipe 11, it is in the milk into basement rock 5
Basement rock grout compartment 22 is formed, the grouting into coating 3 forms that the bottom for pouring walling section 1 with suspension type in top is connected, lower end passes through
Base covers boundary line 6 and is embedded in the blanket grouting section 21 for linking together in basement rock 5 and with basement rock grout compartment 22.
Preferably, step b also includes, by the down-set two rows bottom in the bottom of irrigation gallery 4 grouting in basement rock 5 is located at
Hole 211, two row's grout holes 211 pour the upstream and downstream side of walling section 1 positioned at suspension type respectively, often arrange grout hole 211 mainly by two
Pour the grout hole 211 that the length direction of walling section 1 is arranged side by side along suspension type above to constitute, the grout hole 211 in two rows is mutually wrong
Position；
Step c also includes, by grout hole 211 to covering while being in the milk into coating 3 by pre-embedment grouting pipe 11
Layer 3 carries out grout curtain, makes the serosity that grouting enters in coating 3 be combined together to form integrally-built blanket grouting section
21, and make the connecting length that blanket grouting section 21 pours walling section 1 with suspension type be 10～20m.
Claims (8)
1. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure, it is characterised in that for following deep cover of constructing
Cap rock Earth and Rockfill Dam based moisture barrier structure；
The deep covering layer Earth and Rockfill Dam based moisture barrier structure, including suspension type pours walling section (1) and grout compartment (2)；It is described outstanding
Hanging walling section (1) of pouring is arranged in coating (3), and its upper end is connected with irrigation gallery (4)；The grout compartment (2) is arranged on
In coating (3) and basement rock (5), walling section (1) is poured respectively at its upper and lower side two ends with suspension type and basement rock (5) is connected；It is described outstanding
It is hanging to pour the pre-embedment grouting pipe (11) being provided with walling section (1) for construction grouting section (2), the pre-embedment grouting pipe (11)
The inner space of upper end and irrigation gallery (4), lower end pour the bottom of walling section (1) positioned at suspension type；
The construction method comprises the following steps：
A, pouring hole is set downwards by foundation plane (32) in coating (3), the depth of the depth of pouring hole less than coating (3)
Degree；Pre-embedment grouting pipe (11) is set in pouring hole, and makes the lower end of pre-embedment grouting pipe (11) in the bottom of pouring hole；
B, pour suspension type in pouring hole and pour walling section (1), arrange on foundation plane (32) after the completion of pouring and poured with suspension type
The connected irrigation gallery (4) in walling section (1) upper end, and the upper end of pre-embedment grouting pipe (11) is connected with the inner chamber of irrigation gallery (4)
It is logical；
C, the grouting into coating (3) and basement rock (5) by pre-embedment grouting pipe (11), formed upper and lower side two ends respectively with suspension type
Pour the grout compartment (2) that walling section (1) is connected with basement rock (5).
2. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 1, it is characterised in that：It is described
Pre-embedment grouting pipe (11) includes spaced two row, often arranges pre-embedment grouting pipe (11) and is mainly poured along suspension type by more than two
The pre-embedment grouting pipe (11) that walling section (1) length direction is arranged side by side is constituted, and pre-embedment grouting pipe (11) dislocation in two rows sets
Put.
3. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 1 or 2, it is characterised in that：
The suspension type is poured in the relative water resisting layer (31) that the bottom of walling section (1) is stretched in coating (3)；The grout compartment (2)
Including blanket grouting section (21) and basement rock grout compartment (22)；The basement rock grout compartment (22) is arranged in basement rock (5)；It is described to cover
The bottom that walling section (1) is poured in the top of cap rock grout compartment (21) with suspension type is connected, and the lower end of blanket grouting section (21) is embedded in
Link together in basement rock (5) and with basement rock grout compartment (22).
4. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 3, it is characterised in that：It is described
Suspension type is poured walling section (1) and is formed by concreting, and the grout compartment (2) is formed by grout curtain.
5. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 4, it is characterised in that：It is described
The grout hole (211) for blanket grouting section (21) of constructing, the top of the grout hole (211) are additionally provided with coating (3)
Inner space, bottom with irrigation gallery (4) is located in basement rock (5).
6. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 5, it is characterised in that：It is described
Blanket grouting section (21) is poured the grout hole in pre-embedment grouting pipe (11) and coating (3) in walling section (1) by suspension type
(211) grouting is formed；The grout hole (211) includes two rows for pouring walling section (1) upstream and downstream side positioned at suspension type respectively, often arranges
Grout hole (211) mainly by two or more pours grout hole (211) group that walling section (1) length direction is arranged side by side along suspension type
Into.
7. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 4, it is characterised in that：
In step a, till pouring hole is drilled into the relative water resisting layer (31) in coating (3) Nei, using concreting suspension type
Pour walling section (1)；
In step c, grout curtain is carried out by pre-embedment grouting pipe (11), the grouting into basement rock (5) forms basement rock grout compartment (22),
Formed to grouting in coating (3) bottom for pouring walling section (1) with suspension type in top be connected, lower end be embedded in basement rock (5) it is interior and with
The blanket grouting section (21) that basement rock grout compartment (22) links together.
8. the construction method of deep covering layer Earth and Rockfill Dam based moisture barrier structure as claimed in claim 7, it is characterised in that：
Step b also includes, by grout hole of the down-set two rows bottom in the bottom of irrigation gallery (4) in basement rock (5)
(211), two row's grout holes (211) pour walling section (1) upstream and downstream side positioned at suspension type respectively, often arrange grout hole (211) main
The grout hole (211) that walling section (1) length direction is arranged side by side is poured by two or more along suspension type to constitute；
Step c also includes, by pre-embedment grouting pipe (11) into coating (3) while grouting by grout hole (211) to covering
Cap rock (3) carries out grout curtain, makes the serosity poured in coating (3) be combined together to form integrally-built blanket grouting
Section (21), and make the connecting length that blanket grouting section (21) pours walling section (1) with suspension type be 10～20m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510648624.9A CN105155472B (en) | 2015-10-09 | 2015-10-09 | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510648624.9A CN105155472B (en) | 2015-10-09 | 2015-10-09 | Dam foundation anti-seepage structure of deep overlying layer earth-rock dam and construction method of dam foundation anti-seepage structure |
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| CN105155472A CN105155472A (en) | 2015-12-16 |
| CN105155472B true CN105155472B (en) | 2017-04-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759414B (en) * | 2016-11-30 | 2019-03-12 | 上海建工集团股份有限公司 | A kind of automatically cleaning repeats formula horizontal grouting pipe and its construction method |
| CN107747317B (en) * | 2017-10-18 | 2023-06-02 | 中国电建集团华东勘测设计研究院有限公司 | Soft rock foundation impervious wall groove bottom sediment treatment method and soft rock foundation impervious wall groove bottom structure |
| CN109356101B (en) * | 2018-11-23 | 2023-10-20 | 中国电建集团成都勘测设计研究院有限公司 | Dam foundation seepage-proofing structure in ultra-deep coverage layer |
| CN109778859B (en) * | 2019-03-12 | 2023-12-12 | 长江勘测规划设计研究有限责任公司 | Concrete high dam all-dam non-bin surface consolidation grouting method and structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2265693C1 (en) * | 2004-05-05 | 2005-12-10 | Открытое акционерное общество "Инженерный центр ЕЭС"-Гидропроект, Ленгидропроект, Теплоэлектропроект, Фирма ОРГРЭС" | Water-tight dam diaphragm formed of in-situ materials |
| CN102900092A (en) * | 2012-09-24 | 2013-01-30 | 长江勘测规划设计研究有限责任公司 | Artificial composite foundation of concrete face rockfill dam built on deep and thick coverage layer and construction method of artificial composite foundation |
| CN203307776U (en) * | 2013-06-06 | 2013-11-27 | 中国水电顾问集团华东勘测设计研究院 | Concrete face rock fill dam toe board structure |
| CN104213543A (en) * | 2014-09-24 | 2014-12-17 | 中国水利水电第五工程局有限公司 | Clay filling construction method used between two walls of earth-rock dam bottom |
| CN205012284U (en) * | 2015-10-09 | 2016-02-03 | 中国电建集团成都勘测设计研究院有限公司 | Build dam dam foundation seepage prevention structure on overburden |
-
2015
- 2015-10-09 CN CN201510648624.9A patent/CN105155472B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2265693C1 (en) * | 2004-05-05 | 2005-12-10 | Открытое акционерное общество "Инженерный центр ЕЭС"-Гидропроект, Ленгидропроект, Теплоэлектропроект, Фирма ОРГРЭС" | Water-tight dam diaphragm formed of in-situ materials |
| CN102900092A (en) * | 2012-09-24 | 2013-01-30 | 长江勘测规划设计研究有限责任公司 | Artificial composite foundation of concrete face rockfill dam built on deep and thick coverage layer and construction method of artificial composite foundation |
| CN203307776U (en) * | 2013-06-06 | 2013-11-27 | 中国水电顾问集团华东勘测设计研究院 | Concrete face rock fill dam toe board structure |
| CN104213543A (en) * | 2014-09-24 | 2014-12-17 | 中国水利水电第五工程局有限公司 | Clay filling construction method used between two walls of earth-rock dam bottom |
| CN205012284U (en) * | 2015-10-09 | 2016-02-03 | 中国电建集团成都勘测设计研究院有限公司 | Build dam dam foundation seepage prevention structure on overburden |
Non-Patent Citations (1)
| Title |
|---|
| 深厚覆盖层高土石坝基础防渗墙与坝体防渗体接头型式设计探讨;窦向贤等;《吉林水利》;20130930(第9期);24-25、30 * |
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