CN106759387A - A kind of hydraulic structure large volume backfills structure - Google Patents
A kind of hydraulic structure large volume backfills structure Download PDFInfo
- Publication number
- CN106759387A CN106759387A CN201710037942.0A CN201710037942A CN106759387A CN 106759387 A CN106759387 A CN 106759387A CN 201710037942 A CN201710037942 A CN 201710037942A CN 106759387 A CN106759387 A CN 106759387A
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- China
- Prior art keywords
- sand gravel
- area
- binder materials
- large volume
- backfills
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses concrete material part, the sand gravel Binder Materials part of internal back filled region and abnormal sand gravel area needed for a kind of hydraulic structure large volume backfill structure, including structural strength and durability.The large volume backfill structure that the present invention is used is different from the Normal practice of common engineering, and portion of material needed for structural strength and durability is substituted using the conventional material using concrete, internal backfilling material part using sand gravel Binder Materials.Because sand gravel Binder Materials is relatively low to the requirement of raw material indices, adopt the structure pattern, on the premise of structure safety, normal usage function is met, Project Areas periphery sand gravel material and engineering waste material can be made full use of, construction waste is reduced to take up an area, the pollution to environment is reduced, while having preferable economy, there is fabulous reference to other similar engineerings.
Description
Technical field
The present invention relates to one kind backfill structure, structure is backfilled more particularly, to a kind of hydraulic structure mass concrete.
Background technology
The large volume of hydraulic structure backfills the usual way of structure：Structure all uses concrete backfill；Or according to
Topology requirement outside uses concrete, and internal part is using the backfill of the materials such as gravelly soil.All adopted when backfill amount is larger
Being invested with concrete backfill will increase more, and economy is poor；And use the globality of the material such as gravelly soil backfill structure compared with
Difference, it is necessary to resolve area's internal drainage problem.As fruit structure needs dash and when face water level is higher near water, water body can be along gravelly soil
The discharge structure of setting pours in down a chimney into backfill rubble, when drawdown as back filled region draining at any time forms reverse water not in time
Pressure will be unfavorable for the stabilization of structure.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of structural shape simple, good economy performance, to construction process requirement
Conveniently hydraulic structure large volume backfills structure for low, construction.
The technical solution adopted in the present invention is：A kind of hydraulic structure large volume backfills structure, including outside structure
Portion meet structural strength and durability needed for concrete material area；Positioned at the sand gravel Binder Materials of inside configuration back filled region
Area；Between concrete material area and sand gravel Binder Materials area interface, sand gravel Binder Materials area and foundation interface
Between abnormal sand gravel area is set.
The sand gravel Binder Materials area can be constructed using compacting equipment using the method for layered rolling.
The area in the sand gravel Binder Materials area meets requirement of the roller compaction construction to operation side size, the minimum length of side
Not less than 5m.
The abnormal sand gravel area is made up of the sand gravel Binder Materials slurry liquid that adds water, and its thickness is not more than 1m.
The sand gravel Binder Materials area has filled cement, fly ash gel material and thick, fine aggregate mix and has formed
Sand gravel material area of the cubic compressive strength more than 5MPa；Abnormal sand gravel area is that sand gravel Binder Materials area expects and cement
Starch the region of the cubic compressive strength more than 5MPa of mix.
Having the beneficial effect that produced by the present invention：On the premise of structure safety, normal usage function is met, backfill is internal
Portion subregion carries out compacting backfill using sand gravel Binder Materials.Sand gravel Binder Materials compared with rubble soil material, not only
The intensity of material is improve, the anti-permeability performance of material is also improved, and with certain erosion resistibility, even if water is crossed at top
Can guarantee that structure safety；With all using compared with concrete backfill, not only better economy, speed of application is also accelerated.Make
With sand gravel Binder Materials is low to construction process requirement, speed of application fast, can also make full use of Project Areas periphery earth and stone material and work
Journey abandons slag charge, reduces construction waste and takes up an area, and reduces the pollution to environment, there is fabulous reference to anticipate to other similar engineerings
Justice.
Brief description of the drawings
Fig. 1 is that hydraulic structure large volume of the invention backfills structural profile schematic diagram.
In figure：
1 --- concrete material area；
2 --- sand gravel Binder Materials area；
3 --- abnormal sand gravel area.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, hydraulic structure large volume backfill structure of the invention, including meet structure positioned at structural outer
Concrete material area 1 needed for intensity and durability；Positioned at the sand gravel Binder Materials area 2 of inside configuration back filled region；Concrete
Set between material sections 1 and the interface of sand gravel Binder Materials area 2, between sand gravel Binder Materials area 2 and foundation interface
Put abnormal sand gravel area 3.
The sand gravel Binder Materials area 2 need to be constructed using compacting equipment using the method for layered rolling.
The area in the sand gravel Binder Materials area 2 meets requirement of the roller compaction construction to operation side size, minimum edge
It is long to be not less than 5m.
The abnormal sand gravel area 3 is made up of the sand gravel Binder Materials slurry liquid that adds water, and its thickness is not more than 1m.
The sand gravel Binder Materials area 2 forms to have filled the Binder Materials such as cement, flyash and thick, fine aggregate mix
Cubic compressive strength more than 5MPa sand gravel material area；Abnormal sand gravel area 3 is sand gravel Binder Materials area 2 and water
Region of the cubic compressive strength of mud mix more than 5MPa.
It is described in detail with reference to specific embodiment：
Certain large hydropower station engineering, downstream right bank stiling basin barricade backfills body and connects with right bank slope by mass concrete
Connect.Downstream of hydro-power plant highest tailwater level is 1428.00m.Functional requirement and dependency structure stability analysis are used according to structure, it is determined that gear
Wall crest elevation is 1430.00m, and back side backfill body crest level is 1420.00m after wall.Barricade is such as backfilled using conventional concrete
Scheme, concrete backfill amount is 2.8 ten thousand m3, invest larger.Further to optimize barricade design, crushed stone material is carried out and has returned
Fill out, sand gravel Binder Materials backfills project plan comparison：
Required according to Stability Analysis of Structures, the requirement of right bank barrier wall structure has preferable globality, is returned using materials such as gravelly soils
The globality for filling out structure is poor, while back filled region internal drainage problem must also be resolved.The engineering downstream highest tailwater level is relied on to be
1428.00m, higher than back side backfill body crest level 1420.00m after wall, when downstream operating water level is higher than 1420.00m, water body
The discharge structure of free drainage mode can be designed as along gravelly soil to pour in down a chimney into backfill rubble, when tailwater level lands as arranged
Water easily forms reverse water pressure not in time, will be unfavorable for stablizing for structure, therefore complex using rubble backfill scenario-frame,
Feasibility is poor.
In view of relying on, there is substantial amounts of waste in engineering other buildings excavation and river course sand gravel material is available for utilizing, while
With reference to successful construction, the operating experience of relying on the built upstream sand gravel Binder Materials cofferdam of engineering, barricade part backfill body is used
Sand gravel Binder Materials is feasible as backfill material.
The waste material formed using Project Areas riverbed sand gravel material and engineering excavation as backfill sand gravel material, with vertical
Cube compression strength is mixed for design objective carries out sand gravel Binder Materials more than 5MPa and is matched somebody with somebody.Sand gravel material is selected according to engineering is relied on
Concrete condition, by substantial amounts of laboratory test and on-site rolling engineer testing, it is determined that sand gravel Binder Materials mixes formula
Case.Sand gravel Binder Materials area need to fill cement and the common 100kg/m of flyash on nature aggregate material foundation3, sand
500kg/m3, stone 1700kg/m3, water 80kg/m3。
Abnormal sand gravel area need to be further added by cement and the common 20kg/m of flyash on the basis of sand gravel Binder Materials area3, water
10kg/m3。
Through Integrated comparative, it is determined that part is expected using sand gravel Binder Materials as backfill inside barricade, user
Amount about 1500m3.Sand gravel Binder Materials unit price is only about 1/3rd of normal concrete material unit price, if making on a large scale
With will be with good economy.
Rely on engineering practice have shown that, structural shape of the present invention have, speed of application low to construction process requirement
Hurry up, the advantage such as better economy, environment more close friend, obtain good Social benefit and economic benefit.
Embodiment described above is merely to illustrate technological thought of the invention and feature, in the art its object is to make
Technical staff it will be appreciated that present disclosure and implementing according to this, it is impossible to patent model of the invention is only limited with the present embodiment
Enclose, i.e., equal change or modification that all disclosed spirit is made still fall in the scope of the claims of the invention.
Claims (5)
1. a kind of hydraulic structure large volume backfills structure, it is characterised in that including meeting structural strength positioned at structural outer
And the concrete material area (1) needed for durability；Positioned at the sand gravel Binder Materials area (2) of inside configuration back filled region；Concrete
Between material sections (1) and sand gravel Binder Materials area (2) interface, sand gravel Binder Materials area (2) and foundation interface
Between abnormal sand gravel area (3) is set.
2. hydraulic structure large volume according to claim 1 backfills structure, it is characterised in that the sand gravel gelling material
Material area (2) can be constructed using compacting equipment using the method for layered rolling.
3. hydraulic structure large volume according to claim 2 backfills structure, it is characterised in that the sand gravel gelling material
Expect that the area of area (2) meets requirement of the roller compaction construction to operation side size, the minimum length of side is not less than 5m.
4. hydraulic structure large volume according to claim 1 backfills structure, it is characterised in that the abnormal sand gravel area
(3) it is made up of the sand gravel Binder Materials slurry liquid that adds water, its thickness is not more than 1m.
5. hydraulic structure large volume according to claim 1 backfills structure, it is characterised in that the sand gravel gelling material
Material area (2) is that the cubic compressive strength for having filled cement, fly ash gel material and thick, fine aggregate mix is more than 5MPa
Sand gravel material area；Abnormal sand gravel area (3) for sand gravel Binder Materials area (2) material with cement mortar mix cube
Region of the body compression strength more than 5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037942.0A CN106759387A (en) | 2017-01-18 | 2017-01-18 | A kind of hydraulic structure large volume backfills structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037942.0A CN106759387A (en) | 2017-01-18 | 2017-01-18 | A kind of hydraulic structure large volume backfills structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106759387A true CN106759387A (en) | 2017-05-31 |
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ID=58944134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037942.0A Pending CN106759387A (en) | 2017-01-18 | 2017-01-18 | A kind of hydraulic structure large volume backfills structure |
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| Country | Link |
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| CN (1) | CN106759387A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163283A (en) * | 2003-11-28 | 2005-06-23 | Okinawa General Bureau Cabinet Office | Construction method for compacting top of slope, and top-of-slope compacting equipment for use in it |
| JP2009121119A (en) * | 2007-11-14 | 2009-06-04 | Shimizu Corp | Bank material carrying method and carrying apparatus |
| CN104695455A (en) * | 2015-03-06 | 2015-06-10 | 华能澜沧江水电股份有限公司 | High-flow and high-head antiscour and anti-seepage overflow cofferdam structure and construction method thereof |
-
2017
- 2017-01-18 CN CN201710037942.0A patent/CN106759387A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163283A (en) * | 2003-11-28 | 2005-06-23 | Okinawa General Bureau Cabinet Office | Construction method for compacting top of slope, and top-of-slope compacting equipment for use in it |
| JP2009121119A (en) * | 2007-11-14 | 2009-06-04 | Shimizu Corp | Bank material carrying method and carrying apparatus |
| CN104695455A (en) * | 2015-03-06 | 2015-06-10 | 华能澜沧江水电股份有限公司 | High-flow and high-head antiscour and anti-seepage overflow cofferdam structure and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王薛钢: "胶凝砂砾石(CSG)在围堰工程中的应用", 《水利水电施工》 * |
| 贾金生 等: "胶凝砂砾石坝配合比设计及防渗保护层研究", 《水库大坝建设与管理中的技术进展——中国大坝协会2012学术年会论文集》 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170531 |