CN201485863U - Digging rock bolt compound environment-protection basis - Google Patents

Digging rock bolt compound environment-protection basis Download PDF

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Publication number
CN201485863U
CN201485863U CN2009200943217U CN200920094321U CN201485863U CN 201485863 U CN201485863 U CN 201485863U CN 2009200943217 U CN2009200943217 U CN 2009200943217U CN 200920094321 U CN200920094321 U CN 200920094321U CN 201485863 U CN201485863 U CN 201485863U
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China
Prior art keywords
basis
principal post
dowel
digging
chassis
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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CN2009200943217U
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Chinese (zh)
Inventor
刘洪义
张显峰
张春奎
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Northeast Electric Power Design Institute of China Power Engineering Consulting Group
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Priority to CN2009200943217U priority Critical patent/CN201485863U/en
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Publication of CN201485863U publication Critical patent/CN201485863U/en
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Abstract

The utility model relates to a digging rock bolt compound environment-protection basis, which comprises a digging basis which consists of a basis principal post and a basis chassis, reinforcing bars and anchor rods, wherein the basis principal post is a cylinder; the upper end of the basis principal post is provided with a foundation bolt; the round platform-shaped basis chassis is located below the basis principal post; the reinforcing bars are used for configuring a main reinforcement on the circumference of the basis principal post; the lower end of the main reinforcement is anchored into the basis chassis; the circumference of the main reinforcement is configured with a plurality of circular hoopings; the main reinforcement and anchor bars are located on the same circumference; the anchor bars, the main reinforcement and the hoopings are bound or welded together; the anchor rods consist of mortar or fine gravel concretes in mechanical holes and the lower parts of the anchor bars; the upper ends of the anchor bars are provided with screw threads and sleeved with screw caps and gaskets; the basis principal post and the basis chassis are connected into a whole by the main reinforcement and the anchor bars and are moulded by casting at one time by the concretes; and the basis chassis and the anchor rods are connected into a whole by the anchor bars. The digging basis part and the anchor rod part of the utility model can cooperatively work to resist external loads, thereby meeting the environment protection requirements of engineering construction and saving materials.

Description

Digging composite environmental protection base of anchorage bar adding rock
Technical field
The utility model relates to the basic field of high pressure, super-pressure and extra-high voltage power line tower.
Background technology
State Grid Corporation of China to power engineering construction related environmental protection pay much attention to, environmental protection work is brought up to the height of national grid sustainable development.Requirement among the DL/T5219-2005 " aerial power transmission line basic engineering technical stipulation "; basic engineering must adhere to protecting environment and the principle that economizes on resources; according to circuit landform, execution conditions, geotechnical investigation data; take all factors into consideration basic pattern and design scheme, make basic engineering reach the purpose of safety, economical rationality.
Pole and tower foundation is as the important component part of overhead transmission line, and its cost, duration and labor consumption account for very big proportion in whole line project.Add up according to interrelated data: in general overhead transmission line engineering construction, the basis duration accounts for half of whole duration of a project, the basis freight volume accounts for 60%, and expense accounts for 15%~35% of body cost, and the shared ratio of foundation cost expense also can be higher under the special foundation condition.This shows,, reduce engineering construction cost, select for use science and rational basic pattern and construction technology imperative with suiting measures to local conditions for concrete and the amount of reinforcement that reduces the project of transmitting and converting electricity pole and tower foundation.
The basis accomplished not only economy but also environmental protection in power transmission sequence in the past, no more than adopting undisturbed soil basis pattern, Here it is draws and digs type basis or Rock Bolt Foundation.Digging foundation is direct digging foundation hole in ground, inserts reinforcing bar, penetration concrete and the basis that forms.This basis earthwork is less, and is less to landform and vegetation deterioration, can make full use of the undisturbed soil characteristic, pull out bearing capacity on it to improve, and can reduce the lateral deformation on basis, do not need formwork when casting concrete again, but the reduction of erection time is reduced operating expenses, and what it calculated employing is shearing method.
Rock Bolt Foundation is a kind of base for post of directly building on the rock, is directly to hole, insert reinforcing bar on rock, pours into cementitious materialss such as pea gravel concreten or mortar then, the basis that reinforcing bar and rock tight bond are formed.Though this basic calculation is complicated, calculating train of thought is more clearly.Because this basis utilizes rock itself, have advantages such as the concrete of saving, steel and site operation workload are little, remarkable economic efficiency is arranged.
In a word, digging foundation or Rock Bolt Foundation are paid attention to by vast work about electric power person once coming out as a kind of basic pattern.On the one hand, they have made full use of the high-bearing of undisturbed soil or rock, the characteristics of low distortion, bear big vertical force of shaft tower and horizontal force; On the other hand, its excavated volume is little, has reduced environment damage, has reduced base concrete and steel material again.Certainly, for digging foundation himself shortcoming is arranged also, it is higher to the geology conditional request, and general requirements geology is viscosity class soil, draws to dig for broken rock and soil and foundation ditch to be difficult to moulding and maybe can not to draw the tower position of digging and can not use.Because it is limited that the expansion of digging foundation bottom is dug, the base plate diameter should not be too big, uses in the tower position that basic role power is bigger, and economic benefit is not too obvious.For Rock Bolt Foundation himself shortcoming is arranged also, this basic general requirements rock is exposed, or covering layer and weathered layer are more shallow, but this tower position is difficult to just in time appear on the tower position of circuit.If the rock stratum is very dark, just be difficult to use, often be designed to heavy excavation type basis this moment, and earth volume is very big, influences environment, does not make full use of the bearing capacity of basement rock again.
Investigation shows that a lot of regional geology conditions mainly are that the face of land is covered by argillic horizon, and thickness is generally 1.5~2.5m, below is severely-weathered or the medium weathering rock stratum.As adopting the heavy excavation pattern, easily cause environment extensive damage and the big consequence of Foundation Design consumable quantity on this regional electric power line pole tower basis; If employing digging foundation, thickness of clay soil are often not enough, can't all manually draw and dig; If employing rock foundation needs also to cause excavated volume to increase top layer clay excavation, be unfavorable for environmental protection.
The utility model content
Technical problem to be solved in the utility model provides a kind of digging composite environmental protection base of anchorage bar adding rock; can make full use of undisturbed soil ground bearing capacity height, the little good engineering mechanics performance of distortion; satisfy the environmental protection requirement of engineering construction, the economical with materials amount.
For solving the problems of the technologies described above, the utility model provides a kind of digging composite environmental protection base of anchorage bar adding rock, it is characterized in that: comprise the digging foundation that constitutes by basic principal post and basic chassis, arrangement of reinforcement, anchor pole, the basis principal post is a cylinder, principal post upper end, basis is provided with stone bolt, round table-like basic chassis is positioned at below the basic principal post, arrangement of reinforcement is to dispose main muscle at basic principal post circumference, main muscle lower end anchors in the basic chassis, main muscle circumference configuration is some circular stirrups up and down, main muscle and dowel are positioned on the same circumference, dowel, main muscle and stirrup colligation or weld together, anchor pole is mortar or pea gravel concreten and the dowel bottom composition in the mechanical hole building, there is screw thread the dowel upper end and is with nut and pad, basis principal post and basic chassis are linked as integral body by main muscle and dowel, and by the moulding of concrete one-time-concreting, basic chassis and anchor pole are linked as integral body by running through whole basis dowel up and down.
In order to increase anchorage effect, double welding is connected to bar dowel in the dowel lower end.
The utility model calculates and verification experimental verification by analysis; but digging foundation part and the collaborative work of anchor pole part under ultimate bearing capacity; resist external load well; can make full use of undisturbed soil ground bearing capacity height, the little good engineering mechanics performance of distortion; satisfy the environmental protection requirement of engineering construction, the economical with materials amount.
Description of drawings
Fig. 1 is the digging composite environmental protection base of anchorage bar adding rock elevation;
Fig. 2 is a digging composite environmental protection base of anchorage bar adding rock 1-1 sectional drawing;
Fig. 3 is a digging composite environmental protection base of anchorage bar adding rock 2-2 sectional drawing;
Fig. 4 is a digging composite environmental protection base of anchorage bar adding rock dowel schematic diagram.
The specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises the digging foundation that is made of basic principal post 1 and basic chassis 2, arrangement of reinforcement, anchor pole 10, the basis principal post is a cylinder, principal post upper end, basis is provided with stone bolt 4, round table-like basic chassis is positioned at below the basic principal post, arrangement of reinforcement is to dispose main muscle 5 at basic principal post circumference, main muscle lower end anchors in the basic chassis, main muscle circumference configuration is some circular stirrups 6 up and down, main muscle and dowel 3 are positioned on the same circumference, dowel, main muscle and stirrup colligation or weld together, anchor pole is mortar or pea gravel concreten and the dowel bottom composition in the mechanical hole building 9, there is screw thread the dowel upper end and is with nut and pad 7, and dowel lower end double welding is connected to bar dowel 8.Basis principal post and basic chassis are linked as integral body by main muscle and dowel, and by the moulding of concrete one-time-concreting, basic chassis and anchor pole are linked as integral body by running through whole basis dowel up and down.
Chassis, basis and basic principal post adopt digging foundation to calculate principle and promptly adopt shearing method, and the bottom adopts rock bolt to calculate principle.Digging foundation part and anchor pole part are resisted the active force that the top iron tower transmits together, wherein the cohesion between the relative shearing of the soil body and anchor pole and the rock is born jointly on the surface of shear that formed in the soil body by digging foundation of uplift force and horizontal force, and downforce and horizontal force are born by the rock face under the basic chassis.

Claims (2)

1. digging composite environmental protection base of anchorage bar adding rock, it is characterized in that: comprise the digging foundation that constitutes by basic principal post and basic chassis, arrangement of reinforcement, anchor pole, the basis principal post is a cylinder, principal post upper end, basis is provided with stone bolt, round table-like basic chassis is positioned at below the basic principal post, arrangement of reinforcement is to dispose main muscle at basic principal post circumference, main muscle lower end anchors in the basic chassis, main muscle circumference configuration is some circular stirrups up and down, main muscle and dowel are positioned on the same circumference, dowel, main muscle and stirrup colligation or weld together, anchor pole is mortar or pea gravel concreten and the dowel bottom composition in the mechanical hole building, there is screw thread the dowel upper end and is with nut and pad, basis principal post and basic chassis are linked as integral body by main muscle and dowel, and by the moulding of concrete one-time-concreting, basic chassis and anchor pole are linked as integral body by running through whole basis dowel up and down.
2. digging composite environmental protection base of anchorage bar adding rock according to claim 1 is characterized in that: double welding is connected to bar dowel in the dowel lower end.
CN2009200943217U 2009-09-04 2009-09-04 Digging rock bolt compound environment-protection basis Expired - Lifetime CN201485863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200943217U CN201485863U (en) 2009-09-04 2009-09-04 Digging rock bolt compound environment-protection basis

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Application Number Priority Date Filing Date Title
CN2009200943217U CN201485863U (en) 2009-09-04 2009-09-04 Digging rock bolt compound environment-protection basis

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CN201485863U true CN201485863U (en) 2010-05-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892671A (en) * 2010-08-11 2010-11-24 霍宏斌 Pile anchor rod foundation structure
CN101691760B (en) * 2009-09-25 2011-07-27 中国电力科学研究院 Composite foundation combining anchor rods with excavation and construction method thereof
CN102828525A (en) * 2012-08-16 2012-12-19 国核电力规划设计研究院 Foundation structure of power transmission line tower
CN103615003A (en) * 2013-12-10 2014-03-05 张继红 Swing spraying pile anchor rod construction method
CN110777836A (en) * 2019-10-31 2020-02-11 山东建筑大学 Reinforced concrete plate-anchor rod composite foundation and using method thereof
CN111910670A (en) * 2020-07-20 2020-11-10 国网浙江省电力有限公司丽水供电公司 Assembly type rock anchor rod composite foundation and construction method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101691760B (en) * 2009-09-25 2011-07-27 中国电力科学研究院 Composite foundation combining anchor rods with excavation and construction method thereof
CN101892671A (en) * 2010-08-11 2010-11-24 霍宏斌 Pile anchor rod foundation structure
CN101892671B (en) * 2010-08-11 2012-01-11 霍宏斌 Pile anchor rod foundation structure
CN102828525A (en) * 2012-08-16 2012-12-19 国核电力规划设计研究院 Foundation structure of power transmission line tower
CN103615003A (en) * 2013-12-10 2014-03-05 张继红 Swing spraying pile anchor rod construction method
CN110777836A (en) * 2019-10-31 2020-02-11 山东建筑大学 Reinforced concrete plate-anchor rod composite foundation and using method thereof
CN111910670A (en) * 2020-07-20 2020-11-10 国网浙江省电力有限公司丽水供电公司 Assembly type rock anchor rod composite foundation and construction method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTHEAST

Free format text: FORMER NAME: NORTHEASTERN ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION

CP01 Change in the name or title of a patent holder

Address after: 130021 Jilin City, Changchun province people's street, No. 4368

Patentee after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation

Address before: 130021 Jilin City, Changchun province people's street, No. 4368

Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100526