CN203716168U - Toe slab foundation structure of deep covering layer of concrete face rockfill dam - Google Patents
Toe slab foundation structure of deep covering layer of concrete face rockfill dam Download PDFInfo
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- CN203716168U CN203716168U CN201420026829.4U CN201420026829U CN203716168U CN 203716168 U CN203716168 U CN 203716168U CN 201420026829 U CN201420026829 U CN 201420026829U CN 203716168 U CN203716168 U CN 203716168U
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- 239000002131 composite material Substances 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model discloses a toe slab foundation structure of a deep covering layer of a concrete face rockfill dam. The toe slab foundation structure comprises a toe slab structure which is arranged on the deep covering layer; a plurality of high pressure jet grouting piles are separately arranged on the deep covering layer; the toe slab structure is arranged on a composite foundation which is formed by the high pressure jet grouting piles and the deep covering layer through a cushion layer; the upstream side of the toe slab structure is connected with a cut-off wall through a connecting plate; the downstream side of the toe slab structure is connected with a concrete slab. According to the toe slab foundation structure of the deep covering layer of the concrete face rockfill dam, the composite foundation which is formed by the high pressure jet grouting piles and the deep covering layer is adopted and accordingly the modulus of deformation of the foundation can be effectively improved, the non-uniformity of the deformation of the foundation can be reduced, mass work amount is saved, the construction period is greatly shortened, the construction investment is reduced, and the benefit of the construction development is improved and meanwhile the construction process of the high pressure jet grouting piles is mature, the construction speed is high, and the pile length, the pile diameter and the pile spacing can be adjusted according to the construction needs and the characteristics of the deep covering layer to meet the construction safety and deformation requirements.
Description
Technical field
The utility model relates to based process field, especially relates to Concrete Face Rockfill Dam deep covering layer plinth foundation structure.
Background technology
On deep alluvion foundation, build Concrete Face Rockfill Dam, especially the Concrete Face Rockfill Dam that the covering layer degree of depth is greater than 30m and comprises weak intercalated layer, measures of foundation treatment becomes a key issue that determines Dam Designs in Last quality, and it can directly affect investment and the construction period of dam.Want under the prerequisite that guarantees engineering safety, to reduce to greatest extent excavated volume, reduce and fill material, must solve the processing problem on covering layer basis, make to be out of shape unlikely structural safety and the anti-seepage effect that affects dam in larger and inhomogenous covering layer basis.Current conventional way is that covering layer is excavated, and the method for excavating not only extends the engineering construction duration, thereby and excavates covering layer and will increase excavated volume and backfill amount increase construction investment.
Summary of the invention
The utility model object is to overcome the deficiencies in the prior art, and a kind of simple in structure, Concrete Face Rockfill Dam deep covering layer plinth foundation structure that treatment effect is good is provided.
For achieving the above object, the utility model can be taked following technical proposals:
Concrete Face Rockfill Dam deep covering layer plinth foundation structure described in the utility model, comprise the toe board structure being arranged on deep covering layer, on described deep covering layer, be arranged at intervals with a plurality of high-pressure rotary jet grouting piles, described toe board structure is arranged on the composite foundation of high-pressure rotary jet grouting pile and deep covering layer composition by bed course, the upstream side of described toe board structure is connected with impervious wall by junction plate, and its downstream is connected with concrete slab.
Described bed course is hardcore bed.
The utility model advantage is the composite foundation by adopting high-pressure rotary jet grouting pile and deep covering layer to form, can effectively improve the inhomogeneity of basic modulus of deformation, reduction foundation deformation, compare with conventional based process structure, no longer need to excavate deep covering layer, saved great amount of work are, greatly shorten the duration, reduced construction investment, improved the development benefit of engineering; And Construction Technique of High Pressure Revolving Spraying is ripe, and speed of application is fast, can adjust that stake is long according to the characteristic of requirement of engineering and deep covering layer, stake footpath and pile spacing, make it to meet engineering safety and deformation requirements.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, Concrete Face Rockfill Dam deep covering layer plinth foundation structure described in the utility model, comprise the toe board structure 2 being arranged on deep covering layer 1, on described deep covering layer 1, be arranged at intervals with a plurality of high-pressure rotary jet grouting piles 3, can adjust that the stake of high-pressure rotary jet grouting pile 3 is long according to the characteristic of height of dam, deep covering layer 1 and result of calculation, stake footpath, pile spacing make it to meet requirement of engineering; Described toe board structure 2 is arranged on the composite foundation of high-pressure rotary jet grouting pile 3 and deep covering layer 1 composition by bed course 4, and described bed course 4 can adopt hardcore bed; The upstream side of described toe board structure 2 is connected with impervious wall 6 by junction plate 5, forms seepage prevention for deep covering system, and the downstream of toe board structure 2 is connected with concrete slab 7, forms the above seepage control system of the loose rock dam dam foundation, thereby forms complete seepage control system.
Claims (2)
1. a Concrete Face Rockfill Dam deep covering layer plinth foundation structure, comprise the toe board structure (2) being arranged on deep covering layer (1), it is characterized in that: on described deep covering layer (1), be arranged at intervals with a plurality of high-pressure rotary jet grouting piles (3), described toe board structure (2) is arranged on the composite foundation of high-pressure rotary jet grouting pile (3) and deep covering layer (1) composition by bed course (4), the upstream side of described toe board structure (2) is connected with impervious wall (6) by junction plate (5), and its downstream is connected with concrete slab (7).
2. Concrete Face Rockfill Dam deep covering layer plinth foundation structure according to claim 1, is characterized in that: described bed course (4) is hardcore bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026829.4U CN203716168U (en) | 2014-01-16 | 2014-01-16 | Toe slab foundation structure of deep covering layer of concrete face rockfill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026829.4U CN203716168U (en) | 2014-01-16 | 2014-01-16 | Toe slab foundation structure of deep covering layer of concrete face rockfill dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716168U true CN203716168U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026829.4U Expired - Lifetime CN203716168U (en) | 2014-01-16 | 2014-01-16 | Toe slab foundation structure of deep covering layer of concrete face rockfill dam |
Country Status (1)
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| CN (1) | CN203716168U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389294A (en) * | 2014-11-26 | 2015-03-04 | 禹顺生态建设有限公司 | Concrete faced rockfill dam on deep covering layer and construction method |
| CN107881987A (en) * | 2017-11-30 | 2018-04-06 | 中国电建集团成都勘测设计研究院有限公司 | Deep covering layer top panel Rockfill Dam based moisture barrier structure |
| CN108331002A (en) * | 2018-01-25 | 2018-07-27 | 广东粤水电勘测设计有限公司 | A kind of design and construction method of ground mattress layer |
| CN110055934A (en) * | 2018-11-21 | 2019-07-26 | 中铁十一局集团第六工程有限公司 | A kind of high water level earth and rockfill dam Construction of plastic concrete cut-off wall method |
| CN113832921A (en) * | 2020-06-24 | 2021-12-24 | 中国电建集团华东勘测设计研究院有限公司 | Construction method and structure of core-wall dam heightened face-plate rock-fill dam combined with toe-plate foundation treatment |
-
2014
- 2014-01-16 CN CN201420026829.4U patent/CN203716168U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389294A (en) * | 2014-11-26 | 2015-03-04 | 禹顺生态建设有限公司 | Concrete faced rockfill dam on deep covering layer and construction method |
| CN107881987A (en) * | 2017-11-30 | 2018-04-06 | 中国电建集团成都勘测设计研究院有限公司 | Deep covering layer top panel Rockfill Dam based moisture barrier structure |
| CN108331002A (en) * | 2018-01-25 | 2018-07-27 | 广东粤水电勘测设计有限公司 | A kind of design and construction method of ground mattress layer |
| CN110055934A (en) * | 2018-11-21 | 2019-07-26 | 中铁十一局集团第六工程有限公司 | A kind of high water level earth and rockfill dam Construction of plastic concrete cut-off wall method |
| CN113832921A (en) * | 2020-06-24 | 2021-12-24 | 中国电建集团华东勘测设计研究院有限公司 | Construction method and structure of core-wall dam heightened face-plate rock-fill dam combined with toe-plate foundation treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |