CN103741708B - Prefabricated concrete rod sleeve basis - Google Patents

Prefabricated concrete rod sleeve basis Download PDF

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Publication number
CN103741708B
CN103741708B CN201410005411.XA CN201410005411A CN103741708B CN 103741708 B CN103741708 B CN 103741708B CN 201410005411 A CN201410005411 A CN 201410005411A CN 103741708 B CN103741708 B CN 103741708B
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China
Prior art keywords
prefabricated
sleeve
round steel
chassis
concrete
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CN201410005411.XA
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CN103741708A (en
Inventor
甄新乐
段文
吴毅聪
陈孟斌
陈龙
余健优
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Jiangmen Electric Power Design Institute Limited Company
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TAISHAN CITY NINGHUA ELECTRIC POWER DESIGN CO Ltd
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Abstract

The invention discloses prefabricated concrete rod sleeve basis, comprise prefabricated chassis, described prefabricated chassis is provided with blind hole, round steel installing hole is provided with in described blind hole, prefabricated chassis undertakes prefabricated sleeve in blind hole position, described prefabricated sleeve is more than two joints, and superpose successively, prefabricated sleeve is provided with the via hole corresponding with described round steel installing hole, and for the concrete bar installing hole of adaptive concrete bar, round steel is inserted with in described via hole, the layer of concrete of final grouting is provided with between round steel and via hole, described round steel extend in the round steel installing hole on described prefabricated chassis.Easy construction of the present invention, not existence foundation curing time problem, and cost is low.

Description

Prefabricated concrete rod sleeve basis
Technical field
The present invention relates to concrete rod sleeve basis, specifically prefabricated concrete rod sleeve basis.
Background technology
Coastal area is subject to the impact of the extreme weather such as typhoon, thunderstorm, at present, the basis of distribution trolley wire bar mainly contains nature soil, chuck and large stone foundation etc., and resistance to capsizing is poor, in the coastal area that typhoon is multiple, whenever typhoon season, because rainwater brews earth, cause concrete bar base flexible, the accident generation that distribution line often has concrete bar to tilt or falls down, threaten power supply safety, be therefore extremely necessary the concrete bar basis reinforcing this region, improve the capability of anti-wind of circuit line bar.And owing to mostly being alluvium mud in the soil property of coastal area, soil property is poor, the methods such as the natural earth foundation that usual inland uses and chuck cannot provide enough overturning or slip resistance analysis moments of flexure for concrete bar basis.
Past, often for concrete bar installs windproof bracing wire additional, but the floor space of installing bracing wire was large, as hindered farming in field, then blocked traffic in cities and towns in order to strengthen the capability of anti-wind of electric pole, so not all scene all possesses installing bracing wire condition; Or adopt concrete rod sleeve Cast-in-situs type basis, although this Cast-in-situs type basis is compared with traditional old bases such as nature soil, chassis types, foundation bearing capacity and resistance to capsizing are eager to excel, greatly can improve wind resistance and the shock resistance of 10kV circuit, but there is following defect in it: 1, construct not convenient, concrete rod sleeve Cast-in-situs type basis needs transporting material and machinery to reach the spot could to construct, the manpower and materials of at substantial and the time of transport of materials; 2, concrete rod sleeve Cast-in-situs type basis usually needs the curing time of 14 days, afterwards could vertical rod and stringing, thus greatly increases the cycle of construction; 3, according to the difference of geological condition, the cost on concrete rod sleeve Cast-in-situs type basis is at about 4000 yuan bases, and compared with traditional line tower foundation, cost is higher.
Therefore, for the common problem of coastal area electric distribution network basis resistance to capsizing deficiency, be necessary to carry out case study, improve the resistance to capsizing of electric pole by the financial cost benefit of the best at short notice.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of prefabricated concrete rod sleeve basis, its easy construction, not existence foundation curing time problem, and cost is low.
The technical solution adopted for the present invention to solve the technical problems is:
Prefabricated concrete rod sleeve basis, comprise prefabricated chassis, described prefabricated chassis is provided with blind hole, round steel installing hole is provided with in described blind hole, prefabricated chassis undertakes prefabricated sleeve in blind hole position, described prefabricated sleeve is more than two joints, and superpose successively, prefabricated sleeve is provided with the via hole corresponding with described round steel installing hole, and for the concrete bar installing hole of adaptive concrete bar, round steel is inserted with in described via hole, the layer of concrete of final grouting is provided with between round steel and via hole, described round steel extend in the round steel installing hole on described prefabricated chassis.
Preferably, the joint number of described prefabricated sleeve superposition is 10 joints; It is 200 ~ 300mm that described prefabricated sleeve often saves length, and the length of round steel installing hole is 40 ~ 60mm.
Further, described via hole is four, and circumference is evenly laid on described prefabricated sleeve.
Further, between the sidewall on described prefabricated chassis and roof by skew wall transition.
Preferably, described prefabricated chassis and prefabricated sleeve are concrete structure, and described round steel installing hole and via hole are formed by the pvc pipe be inserted into respectively in prefabricated chassis and prefabricated sleeve.
Further, described prefabricated chassis is provided with suspension ring.
The invention has the beneficial effects as follows: the present invention adopting said structure, tool has the following advantages: 1, prefabricated chassis and prefabricated sleeve can be prefabricated in warehouse, transport is toward on-the-spot again, and while foundation excavation, one saves one and to save land suit, greatly reduces the time of foundation construction; Simultaneously the weight on basis itself is not high, and the weight on prefabricated chassis is about 380kg, and the weight of prefabricated sleeve is about 150kg, and job site completely can manual operation; 2, prefabricated chassis and prefabricated sleeve are first prefabricated, itself have enough time curing time, therefore the problem of just not existence foundation curing time when foundation construction, and basis just can vertical rod stringing once construct, and so just greatly reduces the cycle of construction; 3, the cost on concrete rod sleeve Cast-in-situs type basis is at about 4000 yuan bases, and the cost on prefabricated concrete rod sleeve basis is at about 2300 yuan bases, and comparatively the former reduces 40%; 4, prefabricated concrete rod sleeve basis is compared with concrete rod sleeve Cast-in-situs type basis, while own wt alleviates, can reach the same resistance to capsizing.The present invention also has the simple and reasonable feature such as compact, easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view of prefabricated base in the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the axial view of prefabricated sleeve in the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
With reference to Fig. 1 ~ Fig. 4, prefabricated concrete rod sleeve basis of the present invention, comprise prefabricated chassis 1, described prefabricated chassis 1 is provided with blind hole 11, be provided with round steel installing hole 12 in described blind hole 11, the length of round steel installing hole 12 is preferably 40 ~ 60mm, prefabricated chassis 1 undertakes prefabricated sleeve 2 in blind hole 11 position, described prefabricated sleeve 2 is more than two joints, and superpose successively, according to the demand of concrete rod sleeve foundation length, in the present embodiment, the joint number that described prefabricated sleeve 2 superposes is 10 joints, it is 200 ~ 300mm that prefabricated sleeve 2 often saves length, prefabricated sleeve 2 is provided with the via hole 21 corresponding with described round steel installing hole 12, via hole 21 is four, and circumference is evenly laid on described prefabricated sleeve 2, and for the concrete bar installing hole 22 of adaptive concrete bar 3, round steel 4 is inserted with in described via hole 21, the layer of concrete 5 of final grouting is provided with between round steel 4 and via hole 21, described round steel 4 extend in the round steel installing hole 12 on described prefabricated chassis 1.Concrete bar 3 is inserted into after in concrete bar installing hole 22, and be grating fine sand layer 6 in the space of below ground between concrete bar 3 and concrete bar installing hole 22, the space between concrete bar 3 and concrete bar installing hole 22 more than ground is pea gravel concreten layer 7.
For reducing costs, described prefabricated chassis 1 and prefabricated sleeve 2 are concrete structure, and described round steel installing hole 12 and via hole 21 are formed by the pvc pipe be inserted into respectively in prefabricated chassis 1 and prefabricated sleeve 2.
By skew wall 13 transition between the sidewall on preferred described prefabricated chassis 1 and roof, arranging of skew wall 13 one can reduce materials, and two when backfill, is conducive to preventing basic stress uneven and deflection; For ease of carrying prefabricated chassis 1, described prefabricated chassis 1 is provided with suspension ring 14.
In the present embodiment, described prefabricated concrete rod sleeve foundation main will be divided into the round steel 4 of prefabricated chassis 1, prefabricated sleeve 2 and 4 diameter 16mm, by the pvc pipe of pre-buried 4 diameter 50mm in prefabricated chassis 1, the length of pvc pipe in prefabricated chassis 1 is 50mm, so that the round steel 4 that diameter is 16mm stretches into anchoring, the effect on prefabricated chassis 1 is the foundation bearing capacity and the resistance to tipping moment that improve concrete bar; Prefabricated sleeve 2 often saves length 250mm, external diameter 700mm, internal diameter 400mm, pre-buried equally 4 diameter 50mmPVC manage, the effect one of prefabricated sleeve 2 is mud landslides when preventing foundation excavation, also be conducive to keeping concrete original state, two is protection concrete bars, effectively can avoid the inclination of shaft simultaneously; The length of the round steel of diameter 16mm is 2900mm for 15 meters of electric poles, is 2400mm for 12 meters of electric poles, and in basis, the object of configuration round steel 4 is the shifted laterallys preventing prefabricated sleeve, effectively avoids the inclination of shaft.
Through internal force control test, this basis can meet design requirement, specific as follows:
Internal force during erection insulated conductor is checked: with double back 10kV circuit 12 meters of straight line poles, strain section length 500 meters, span is 65 meters, and geological condition is paddy field, design wind speed 40 meter per second, and erection JKLGYJ-240 is example.As calculated, masthead horizontal force is 9.53KN, and pole-footing portion moment-curvature relationship is 111.03KN.m, basic pressure at right angle 93.5KN, and calculating longitudinal reinforcement sectional area and Asz are 3.83C ㎡.And this basic limit overturning moment is 122KN.m, permission downforce is 99.6KN, and the vertical muscle area of reinforcement is 8.04C ㎡, numerical value on being all greater than.This basis can meet the requirement of design.
Internal force during erection bare conductor is checked: with double back 10kV circuit 12 meters of straight line poles, strain section length 500 meters, span is 80 meters, and geological condition is paddy field, design wind speed 40 meter per second, and erection LGJ-240 is example.As calculated, masthead horizontal force is 9.47KN, and pole-footing portion moment-curvature relationship is 110.2KN.m, basic pressure at right angle 93.5KN, and calculating longitudinal reinforcement sectional area and Asz are 3.8C ㎡.And this basic limit overturning moment is 122KN.m, permission downforce is 99.6KN, and the vertical muscle area of reinforcement is 8.04C ㎡, numerical value on being all greater than.This basis can meet the requirement of design.
Adopt the present invention of said structure, tool has the following advantages: 1, prefabricated chassis 1 and prefabricated sleeve 2 can be prefabricated in warehouse, then transport is toward on-the-spot, and while foundation excavation, one saves one and to save land suit, greatly reduces the time of foundation construction; Simultaneously the weight on basis itself is not high, and the weight on prefabricated chassis 1 is about 380kg, and the weight of prefabricated sleeve 2 is about 150kg, and job site completely can manual operation; 2, prefabricated chassis 1 and prefabricated sleeve 2 are first prefabricated, itself there is enough time curing time, therefore the problem of just not existence foundation curing time when foundation construction, basis just can vertical rod stringing once construct, and so just greatly reduces the cycle of construction; 3, the cost on concrete rod sleeve Cast-in-situs type basis is at about 4000 yuan bases, and the cost on prefabricated concrete rod sleeve basis is at about 2300 yuan bases, and comparatively the former reduces 40%; 4, prefabricated concrete rod sleeve basis is compared with concrete rod sleeve Cast-in-situs type basis, while own wt alleviates, can reach the same resistance to capsizing.
The above, just better embodiment of the present invention, but the present invention is not limited to above-described embodiment, as long as it reaches technique effect of the present invention with any same or similar means, all should fall within protection scope of the present invention.

Claims (7)

1. prefabricated concrete rod sleeve basis, it is characterized in that: comprise prefabricated chassis (1), described prefabricated chassis (1) is provided with blind hole (11), round steel installing hole (12) is provided with in described blind hole (11), prefabricated chassis (1) undertakes prefabricated sleeve (2) in blind hole (11) position, described prefabricated sleeve (2) is more than two joints, and superpose successively, prefabricated sleeve (2) is provided with the via hole (21) corresponding with described round steel installing hole (12), and for the concrete bar installing hole (22) of adaptive concrete bar (3), round steel (4) is inserted with in described via hole (21), the layer of concrete (5) of final grouting is provided with between round steel (4) and via hole (21), described round steel (4) extend in the round steel installing hole (12) of described prefabricated chassis (1).
2. prefabricated concrete rod sleeve basis according to claim 1, is characterized in that: the joint number that described prefabricated sleeve (2) superposes is 10 joints.
3. prefabricated concrete rod sleeve basis according to claim 2, it is characterized in that: it is 200 ~ 300mm that described prefabricated sleeve (2) often saves length, the length of round steel installing hole (12) is 40 ~ 60mm.
4. the prefabricated concrete rod sleeve basis according to any one of claims 1 to 3, is characterized in that: described via hole (21) is four, and evenly lays in the upper circumference of described prefabricated sleeve (2).
5. prefabricated concrete rod sleeve basis according to claim 4, is characterized in that: by skew wall (13) transition between the sidewall of described prefabricated chassis (1) and roof.
6. prefabricated concrete rod sleeve basis according to claim 1, it is characterized in that: described prefabricated chassis (1) and prefabricated sleeve (2) are concrete structure, described round steel installing hole (12) and via hole (21) are formed by the pvc pipe be inserted into respectively in prefabricated chassis (1) and prefabricated sleeve (2).
7. prefabricated concrete rod sleeve basis according to claim 1, is characterized in that: described prefabricated chassis (1) is provided with suspension ring (14).
CN201410005411.XA 2014-01-02 2014-01-02 Prefabricated concrete rod sleeve basis Active CN103741708B (en)

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CN103741708B true CN103741708B (en) 2015-12-09

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106480898A (en) * 2016-08-31 2017-03-08 安徽华电工程咨询设计有限公司 The telescopic base structure of mountain area small load
CN106759438A (en) * 2016-12-21 2017-05-31 苏州园林设计院有限公司 A kind of Landscape Architecture pin pin and its construction technology with Windproof anti-seismic function
CN108018868B (en) * 2017-12-29 2020-04-17 国网福建省电力有限公司 Anti-settling cement rod reinforced foundation
CN110284746B (en) * 2019-07-02 2020-10-13 合肥海银杆塔有限公司 Telegraph pole with composite material layer preventing weathering corrosion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100943062B1 (en) * 2009-06-10 2010-02-17 (주)세림철탑산업 The basis structure of steel pipe and method
CN201883746U (en) * 2010-11-19 2011-06-29 鞍钢集团矿业公司 Base of movable high-voltage wire pole
CN203049607U (en) * 2013-01-05 2013-07-10 台山市宁华电力设计有限公司 Windproof reinforced concrete pole sleeve foundation
CN203247928U (en) * 2013-05-09 2013-10-23 贵州江南凯通经济开发有限责任公司 Cement telegraph pole and base used in cooperation with same
CN203684258U (en) * 2014-01-02 2014-07-02 台山市宁华电力设计有限公司 Prefabricated concrete rod sleeve foundation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100943062B1 (en) * 2009-06-10 2010-02-17 (주)세림철탑산업 The basis structure of steel pipe and method
CN201883746U (en) * 2010-11-19 2011-06-29 鞍钢集团矿业公司 Base of movable high-voltage wire pole
CN203049607U (en) * 2013-01-05 2013-07-10 台山市宁华电力设计有限公司 Windproof reinforced concrete pole sleeve foundation
CN203247928U (en) * 2013-05-09 2013-10-23 贵州江南凯通经济开发有限责任公司 Cement telegraph pole and base used in cooperation with same
CN203684258U (en) * 2014-01-02 2014-07-02 台山市宁华电力设计有限公司 Prefabricated concrete rod sleeve foundation

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Effective date of registration: 20191029

Address after: 529000 9th Floor, 63 Shengli Xincun, Jiangmen City, Guangdong Province

Patentee after: Jiangmen Electric Power Design Institute Limited Company

Address before: 529200 Guangdong city of Jiangmen province Taishan Taicheng Shun Road No. 151 Room 101

Patentee before: TAISHAN CITY NINGHUA ELECTRIC POWER DESIGN CO., LTD.

TR01 Transfer of patent right