CN104314053A - Earth and rockfill concrete core wall asphalt concrete and paving method thereof - Google Patents
Earth and rockfill concrete core wall asphalt concrete and paving method thereof Download PDFInfo
- Publication number
- CN104314053A CN104314053A CN201410525982.6A CN201410525982A CN104314053A CN 104314053 A CN104314053 A CN 104314053A CN 201410525982 A CN201410525982 A CN 201410525982A CN 104314053 A CN104314053 A CN 104314053A
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- core
- bituminous concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
Earth and rockfill concrete core wall asphalt concrete and a paving method thereof break through the limitation to the maximal aperture of core wall asphalt concrete coarse aggregate in the prior art; the specific paving method is used for assisting, so the machining efficiency of coarse aggregate is greatly improved, the use level of asphalt is reduced and the engineering building and construction cost is reduced.
Description
Technical field
The present invention relates to a kind of earth and rockfill dam watertight core bituminous concrete, concrete maximum aggregate size is that the bituminous concrete of 40mm relates to its method that paves.
Background technology
Due to plurality of advantages and the excellent characteristic of bituminous concrete, in earth and rockfill dam design, adopt bituminous concrete to get more and more as the dam type of watertight core, also solve western earth and rockfill dam watertight core simultaneously and to draw materials a difficult difficult problem.The time that China's earth and rockfill dam application bituminous concrete makes watertight core is short, the experience of construction is less, so far continue to use the technical specification of asphalt concrete pavement, within core-wall bituminous concrete maximum size of coarse aggregate is limited to 20mm for a long time when earth and rockfill dam watertight core starts to adopt bituminous concrete always.And roller compacted asphalt concrete core construction technology is constantly in improve now, the thickness of every layer is also continuing to increase, and has ready conditions and allows to strengthen the particle diameter of coarse aggregate.The coarse aggregate size that maximum particle diameter is limited within 20mm is little, then working (machining) efficiency is low, causes coarse aggregate cost of production high, but also makes asphaltogenic content large (bitumen content 6.5% ~ 7.1% now), adds engineering cost.
Summary of the invention
For overcoming the shortcoming of prior art, under guarantee watertight core reaches the prerequisite of design standard, invention provides a kind of object core of earth-rockfill dam bituminous concrete and the method that paves thereof, and can reduce cost of production and the bitumen content of coarse aggregate, thus reduction cost of production, increase the benefit.
The object of the present invention is achieved like this: a kind of core of earth-rockfill dam bituminous concrete, and the maximum size of coarse aggregate of adding in described bituminous concrete is 40mm.
Bitumen content in described bituminous concrete is 5.5% ~ 5.8%.
In described coarse aggregate, particle diameter accounts for 24-26% respectively at the aggregate of 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm, 16-18%, 12-14%, and all the other are sand and filler.
In described coarse aggregate, particle diameter accounts for 25.57%, 17.89%, 13.83% respectively at 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm.
The preparation method of above-mentioned core of earth-rockfill dam bituminous concrete, comprises the following steps:
Carry out sandstone aggregate by the asphalt mixture ratio of Large stone coarse aggregate to carry out just joining, aggregate is sieve classification after to 180 DEG C ~ 200 DEG C, is classified as 40mm ~ 20mm, 20mm ~ 5mm, 5mm ~ 0.74mm; The aggregate of classification is stored in the different hot aggregate storage bin of batching plant respectively, weighs, and drop into agitated kettle by each separated aggregate consumption of the every slit bamboo or chopped wood determined, adds mixing 15s after breeze; Add the pitch mixing 45s ~ 60s of 150 DEG C ~ 155 DEG C again, namely make the semiproduct-bituminous mixture of the bituminous concrete of maximum size of coarse aggregate 40mm, after bituminous mixture laying, be bituminous concrete.
The outlet temperature of bituminous mixture controls at 165 DEG C ~ 175 DEG C, compound is discharged in the hopper of vertical transport after transporting to job site, vertical transport equipment is to bituminous concrete paver for bituminous mixture (or directly putting in storage), and charging appliance supplies Transition Materials (or the Transition Materials that directly paves) to paver;
Bituminous mixture placement temperature 160 DEG C ~ 170 DEG C, between first stone roller temperature 150 DEG C ~ 155 DEG C, grind again when under bituminous concrete top layer after rolling, the temperature at 1cm ~ 2cm place drops to 140 DEG C ~ 145 DEG C, under bituminous concrete top layer, 1cm ~ 2cm place temperature is ground after dropping to 130 DEG C ~ 135 DEG C eventually, namely rolls without shaking and carries out surface receipts light for one time;
The order that rolls of core-wall bituminous mixture and Transition Materials is shake roll Transition Materials 1 time → vibroroller cmpacting Transition Materials 4 times → vibroroller cmpacting bituminous mixture 8 ~ 12 times → vibroroller cmpacting Transition Materials 4 times without rolled asphalt compound 1 time → nothing of shaking, the vibroroller cmpacting speed of travel is 25 ~ 30m/min, finally roll with 1.5t ~ 2t vibrational and roll 1 time receipts light at pitch core-wall without shaking, Transition Materials 2.5t ~ 3t vibrational rolls and rolls 1 time pressing Transition Materials and core-wall contact site without shaking.
The bituminous mixture bucket of paver and transition hopper pave after filling material, and when paving, the speed of travel remains on 2 ~ 3m/min; Pave at the bituminous mixture that paves the Transition Materials of core-wall both sides simultaneously.
Described Transition Materials is the sand material of core-wall bituminous concrete both sides.
Core of earth-rockfill dam bituminous concrete provided by the invention and the method that paves thereof, in core of earth-rockfill dam bituminous concrete, maximum size of coarse aggregate is increased to 40mm, bitumen content is reduced to 5.5% ~ 5.8%, breach coarse aggregate in prior art and generally select the technology barriers of below 20mm, under the prerequisite of safeguards technique effect, significantly reduce the processing cost of coarse aggregate, greatly improve coarse aggregate working (machining) efficiency, decrease asphalt content, reduce engineering construction and construction cost.
The 20mm particle diameter that aggregate system of processing is produced aborning accounts for 20.45%, and the 40mm particle diameter produced accounts for 31.24%, and efficiency improves 52.76%.
Bitumen content 5.5% ~ 5.8% in the coarse asphaltic concrete of 40mm particle diameter, and the bitumen content 6.5% ~ 7.1% in the material bituminous concrete of 20mm particle diameter, use pitch 1% ~ 1.3% less; The unit weight of bituminous concrete is 2450kg/m
3if by calculating with pitch 1% less, every cube of bituminous concrete uses pitch 24.5 kg less, calculate to job site valency by the pitch of 6530 yuan/t, every cube of few pitch of bituminous concrete saves 159.99 yuan.General dam, the bituminous concrete amount of pitch core-wall is all at 7000 ~ 15000 m
3, only count from saving pitch, a large amount of construction funds can be saved.
Detailed description of the invention
Core of earth-rockfill dam bituminous concrete coarse aggregate match ratio 1:
In coarse aggregate, particle diameter accounts for 24%, 16%, 12% respectively at the aggregate of 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm, and all the other are sand and filler.
Core of earth-rockfill dam bituminous concrete coarse aggregate match ratio 2:
In coarse aggregate, particle diameter accounts for 25.57%, 17.89%, 13.83% respectively at the aggregate of 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm, and all the other are sand and filler.
Core of earth-rockfill dam bituminous concrete coarse aggregate match ratio 3:
In coarse aggregate, particle diameter accounts for 26%, 18%, 14% respectively at the aggregate of 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm, and all the other are sand and filler.
A kind of core of earth-rockfill dam bituminous concrete, the maximum size of coarse aggregate of adding is wherein 40mm, and bitumen content is 5.5% ~ 5.8%.
Preparation method's example of core of earth-rockfill dam bituminous concrete:
Just join: carry out sandstone aggregate by the asphalt mixture ratio of Large stone coarse aggregate and carry out just joining, aggregate is sieve classification after to 180 DEG C ~ 200 DEG C, is classified as 40mm ~ 20mm, 20mm ~ 5mm, 5mm ~ 0.74mm; The aggregate of classification is stored in the different hot aggregate storage bin of batching plant respectively, weighs, and drop into agitated kettle by each separated aggregate consumption of the every slit bamboo or chopped wood determined, adds mixing 15s after breeze; Add the pitch mixing 45s ~ 60s of 150 DEG C ~ 155 DEG C again, namely make the semiproduct of the bituminous concrete of maximum size of coarse aggregate 40mm---bituminous mixture.
Core of earth-rockfill dam bituminous concrete paves example:
The outlet temperature of bituminous mixture controls at 165 DEG C ~ 175 DEG C, compound is discharged in the hopper of vertical transport after transporting to job site, vertical transport equipment is to bituminous concrete paver for bituminous mixture (or directly putting in storage), and charging appliance supplies Transition Materials (or the Transition Materials that directly paves) to paver;
Bituminous mixture placement temperature 160 DEG C ~ 170 DEG C, between first stone roller temperature 150 DEG C ~ 155 DEG C, grind again when under bituminous concrete top layer after rolling, the temperature at 1cm ~ 2cm place drops to 140 DEG C ~ 145 DEG C, under bituminous concrete top layer, 1cm ~ 2cm place temperature is ground after dropping to 130 DEG C ~ 135 DEG C eventually, namely rolls without shaking and carries out surface receipts light for one time;
The order that rolls of core-wall bituminous mixture and Transition Materials is shake roll Transition Materials 1 time → vibroroller cmpacting Transition Materials 4 times → vibroroller cmpacting bituminous mixture 8 ~ 12 times → vibroroller cmpacting Transition Materials 4 times without rolled asphalt compound 1 time → nothing of shaking, the vibroroller cmpacting speed of travel is 25 ~ 30m/min, finally roll with 1.5t ~ 2t vibrational and roll 1 time receipts light at pitch core-wall without shaking, Transition Materials 2.5t ~ 3t vibrational rolls and rolls 1 time pressing Transition Materials and core-wall contact site without shaking.
The bituminous mixture bucket of paver and transition hopper pave after filling material, and when paving, the speed of travel remains on 2 ~ 3m/min; Pave at the bituminous mixture that paves the Transition Materials of core-wall both sides simultaneously.
Described Transition Materials is the sand material of core-wall bituminous concrete both sides.
Claims (8)
1. a core of earth-rockfill dam bituminous concrete, is characterized in that: the maximum size of coarse aggregate of adding in described bituminous concrete is 40mm.
2. core of earth-rockfill dam bituminous concrete according to claim 1, is characterized in that: the bitumen content in described bituminous concrete is 5.5% ~ 5.8%.
3. core of earth-rockfill dam bituminous concrete according to claim 1, it is characterized in that: in described coarse aggregate, particle diameter accounts for 24-26% respectively at the aggregate of 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm, 16-18%, 12-14%, all the other are sand and filler.
4. core of earth-rockfill dam bituminous concrete according to claim 1, is characterized in that: in described coarse aggregate, particle diameter accounts for 25.57%, 17.89%, 13.83% respectively at 40mm ~ 20mm, 20mm ~ 5mm and 5mm ~ 0.74mm.
5. the preparation method of the core of earth-rockfill dam bituminous concrete described in Claims 1 to 4 described in arbitrary claim 1, is characterized in that: comprise the following steps:
Carry out sandstone aggregate by the asphalt mixture ratio of Large stone coarse aggregate to carry out just joining, aggregate is sieve classification after to 180 DEG C ~ 200 DEG C, is classified as 40mm ~ 20mm, 20mm ~ 5mm, 5mm ~ 0.74mm; The aggregate of classification is stored in the different hot aggregate storage bin of batching plant respectively, weighs, and drop into agitated kettle by each separated aggregate consumption of the every slit bamboo or chopped wood determined, adds mixing 15s after breeze; Add the pitch mixing 45s ~ 60s of 150 DEG C ~ 155 DEG C again, namely make the semiproduct-bituminous mixture of the bituminous concrete of maximum size of coarse aggregate 40mm, after bituminous mixture laying, be bituminous concrete.
6. the method that paves of core of earth-rockfill dam bituminous concrete according to claim 5, is characterized in that:
The outlet temperature of bituminous mixture controls at 165 DEG C ~ 175 DEG C, compound is discharged in the hopper of vertical transport after transporting to job site, vertical transport equipment is to bituminous concrete paver for bituminous mixture (or directly putting in storage), and charging appliance supplies Transition Materials (or the Transition Materials that directly paves) to paver;
Bituminous mixture placement temperature 160 DEG C ~ 170 DEG C, between first stone roller temperature 150 DEG C ~ 155 DEG C, grind again when under bituminous concrete top layer after rolling, the temperature at 1cm ~ 2cm place drops to 140 DEG C ~ 145 DEG C, under bituminous concrete top layer, 1cm ~ 2cm place temperature is ground after dropping to 130 DEG C ~ 135 DEG C eventually, namely rolls without shaking and carries out surface receipts light for one time;
The order that rolls of core-wall bituminous mixture and Transition Materials is shake roll Transition Materials 1 time → vibroroller cmpacting Transition Materials 4 times → vibroroller cmpacting bituminous mixture 8 ~ 12 times → vibroroller cmpacting Transition Materials 4 times without rolled asphalt compound 1 time → nothing of shaking, the vibroroller cmpacting speed of travel is 25 ~ 30m/min, finally roll with 1.5t ~ 2t vibrational and roll 1 time receipts light at pitch core-wall without shaking, Transition Materials 2.5t ~ 3t vibrational rolls and rolls 1 time pressing Transition Materials and core-wall contact site without shaking.
7. the method that paves of core of earth-rockfill dam bituminous concrete according to claim 6, is characterized in that: the bituminous mixture bucket of paver and transition hopper pave after filling material, and when paving, the speed of travel remains on 2 ~ 3m/min; Pave at the bituminous mixture that paves the Transition Materials of core-wall both sides simultaneously.
8. the method that paves of core of earth-rockfill dam bituminous concrete according to claim 6, is characterized in that: described Transition Materials is the sand material of core-wall bituminous concrete both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410525982.6A CN104314053A (en) | 2014-10-09 | 2014-10-09 | Earth and rockfill concrete core wall asphalt concrete and paving method thereof |
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| CN201410525982.6A CN104314053A (en) | 2014-10-09 | 2014-10-09 | Earth and rockfill concrete core wall asphalt concrete and paving method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002864A (en) * | 2015-07-31 | 2015-10-28 | 中国水利水电第七工程局有限公司 | Ultra-large-particle-size hydraulic asphalt concrete impermeable material |
| CN106368176A (en) * | 2016-11-08 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | High dam structure built on deep overburden of soil material shortage area |
| CN107386060A (en) * | 2017-07-18 | 2017-11-24 | 中国水电基础局有限公司 | The blending method of high altitude localities bituminous concrete |
| CN111470806A (en) * | 2020-04-08 | 2020-07-31 | 新疆农业大学 | Large-particle-size aggregate core wall asphalt concrete and mixing proportion optimization method thereof |
| CN112854142A (en) * | 2021-01-15 | 2021-05-28 | 西安理工大学 | Rolling type asphalt concrete core wall construction method under complex climate condition |
| CN114544487A (en) * | 2022-01-11 | 2022-05-27 | 西安理工大学 | Method for testing bonding performance of asphalt and aggregate interface transition region in core wall dam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908315A (en) * | 2006-08-17 | 2007-02-07 | 中国葛洲坝水利水电工程集团有限公司 | Rapid construction method for stone dam rolling asphalt concrete cutoff core wall |
| CN102493402A (en) * | 2011-11-30 | 2012-06-13 | 中水东北勘测设计研究有限责任公司 | Insertion type vibration rolling construction method of asphalt concrete core of earth and rockfill dam |
| CN102864758A (en) * | 2012-10-22 | 2013-01-09 | 安蓉建设总公司 | Construction method of rolling compaction type asphalt concrete impervious core wall in high altitude and cold areas |
| CN102875059A (en) * | 2012-10-31 | 2013-01-16 | 中国水电顾问集团北京勘测设计研究院 | Modified asphalt concrete for impervious layer in severe cold environment and construction method of modified asphalt concrete |
| KR101368913B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam using rail integrated side form |
| CN203546678U (en) * | 2013-10-14 | 2014-04-16 | 中国水电顾问集团贵阳勘测设计研究院 | Asphalt concrete core-wall rockfill dam structure |
-
2014
- 2014-10-09 CN CN201410525982.6A patent/CN104314053A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908315A (en) * | 2006-08-17 | 2007-02-07 | 中国葛洲坝水利水电工程集团有限公司 | Rapid construction method for stone dam rolling asphalt concrete cutoff core wall |
| KR101368913B1 (en) * | 2011-11-25 | 2014-02-28 | 주식회사 정원종합산업 | Method for constructing face slab of concrete face rockfill dam using rail integrated side form |
| CN102493402A (en) * | 2011-11-30 | 2012-06-13 | 中水东北勘测设计研究有限责任公司 | Insertion type vibration rolling construction method of asphalt concrete core of earth and rockfill dam |
| CN102864758A (en) * | 2012-10-22 | 2013-01-09 | 安蓉建设总公司 | Construction method of rolling compaction type asphalt concrete impervious core wall in high altitude and cold areas |
| CN102875059A (en) * | 2012-10-31 | 2013-01-16 | 中国水电顾问集团北京勘测设计研究院 | Modified asphalt concrete for impervious layer in severe cold environment and construction method of modified asphalt concrete |
| CN203546678U (en) * | 2013-10-14 | 2014-04-16 | 中国水电顾问集团贵阳勘测设计研究院 | Asphalt concrete core-wall rockfill dam structure |
Non-Patent Citations (4)
| Title |
|---|
| 胡贻涛等: "茅坪溪土石坝沥青混凝土心墙机械化施工", 《湖北水力发电》 * |
| 顾慰慈: "《土石（堤）坝的设计与计算》", 31 July 2006 * |
| 顾慰慈: "《土石（堤）坝的设计与计算》", 31 July 2006, article ""第三节 沥青混凝土防渗体"" * |
| 马家燕等: "高寒多雨地区碾压式沥青混凝土心墙施工技术", 《水力发电》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002864A (en) * | 2015-07-31 | 2015-10-28 | 中国水利水电第七工程局有限公司 | Ultra-large-particle-size hydraulic asphalt concrete impermeable material |
| CN106368176A (en) * | 2016-11-08 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | High dam structure built on deep overburden of soil material shortage area |
| CN106368176B (en) * | 2016-11-08 | 2019-01-01 | 中国电建集团成都勘测设计研究院有限公司 | The high dam structure being built on earth material scarcity area deeply covered layer |
| CN107386060A (en) * | 2017-07-18 | 2017-11-24 | 中国水电基础局有限公司 | The blending method of high altitude localities bituminous concrete |
| CN107386060B (en) * | 2017-07-18 | 2019-06-25 | 中国水电基础局有限公司 | The blending method of high altitude localities bituminous concrete |
| CN111470806A (en) * | 2020-04-08 | 2020-07-31 | 新疆农业大学 | Large-particle-size aggregate core wall asphalt concrete and mixing proportion optimization method thereof |
| CN111470806B (en) * | 2020-04-08 | 2022-04-19 | 新疆农业大学 | Large-particle-size aggregate core wall asphalt concrete and mixing proportion optimization method thereof |
| CN112854142A (en) * | 2021-01-15 | 2021-05-28 | 西安理工大学 | Rolling type asphalt concrete core wall construction method under complex climate condition |
| CN114544487A (en) * | 2022-01-11 | 2022-05-27 | 西安理工大学 | Method for testing bonding performance of asphalt and aggregate interface transition region in core wall dam |
| CN114544487B (en) * | 2022-01-11 | 2023-10-27 | 西安理工大学 | Method for testing adhesion performance of asphalt and aggregate interface transition area in core wall dam |
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Application publication date: 20150128 |