CN106400832A - Environment-friendly assembling type post-grouting steel cylinder pile foundation and construction method thereof - Google Patents

Environment-friendly assembling type post-grouting steel cylinder pile foundation and construction method thereof Download PDF

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Publication number
CN106400832A
CN106400832A CN201611073523.4A CN201611073523A CN106400832A CN 106400832 A CN106400832 A CN 106400832A CN 201611073523 A CN201611073523 A CN 201611073523A CN 106400832 A CN106400832 A CN 106400832A
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CN
China
Prior art keywords
cylinder
environment
stake
pile
foundation
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Granted
Application number
CN201611073523.4A
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Chinese (zh)
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CN106400832B (en
Inventor
周鲲
陈霖华
梅志凌
程育林
徐满华
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State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Original Assignee
ECONOMIC TECHNOLOGY RESEARCH INSTITUTE STATE GRID HUNAN ELECTRIC POWER Co Ltd
Hunan Transmission & Distribution Investigation Design And Consultation Co Ltd
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Priority to CN201611073523.4A priority Critical patent/CN106400832B/en
Publication of CN106400832A publication Critical patent/CN106400832A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/44Foundations for machines, engines or ordnance
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/42Foundations for poles, masts or chimneys

Abstract

The invention discloses an environment-friendly assembling type post-grouting steel cylinder pile foundation. The environment-friendly assembling type post-grouting steel cylinder pile foundation comprises a pile cylinder formed by sequentially splicing a plurality of pipe joints in the axial direction. The pile cylinder is embedded in a foundation pit, concrete or cement mortar is poured to the periphery of the pile cylinder, the pile cylinder is filled with spoil, connecting pieces connected with tower legs are arranged at the upper end of the pile cylinder, and anchor rods anchored to the bottom of the foundation pit are arranged at the bottom end of the pile cylinder. The invention further discloses a construction method of the environment-friendly assembling type post-grouting steel cylinder pile foundation. The method comprises the following steps that the foundation pit is excavated through manual work or a machine; the pile bottom anchor rods are constructed, the pipe joints are spliced to form the pile cylinder, and the connecting pieces connected with the tower legs are arranged at the upper end of the pile cylinder; the concrete or the cement mortar is poured to the part between the side wall of the foundation pit and the pile cylinder; and a hollow part of the steel cylinder pile is backfilled with soil. According to the environment-friendly assembling type post-grouting steel cylinder pile foundation and the construction method thereof, procedures are simple, construction operation is convenient, factory modular production can be achieved, manufacturing is easy and convenient, and the machining precision is high; and assembling is convenient, the economic benefits and social benefits are obvious, and high popularization value is achieved.

Description

A kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation and its construction method
Technical field
The present invention relates to Electric Design technical field, more particularly, to a kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation and Its construction method.
Background technology
At present, the construction of China's ultra-high-tension power transmission line remains in based on manpower, the state supplemented by machinery, construction machinery Change low degree.Construction equipment is simple, and personnel's operation intensity is big, efficiency is low, dangerous higher.It is fast-developing with economic society, One line workmen is in short supply, and labor cost persistently increases, and the form of construction work of manpower-intensive type is unsustainable, with transmission line of electricity The development of design, the research of overall process mechanized construction is also more and more important.For response State Grid Corporation of China " amphitypy three is new " Construction requirements, provide one kind can batch production processing, assembled construction, reduce live " wet trade ", realize environmental protection construction, raising is applied Work efficiency rate, propulsion site machineryization construction, reduces labour force and puts into, reduce site safety risk, improve the electric power of construction quality Pole and tower foundation is urgently to be resolved hurrily at present a problem.
Content of the invention
An object of the present invention is to provide that a kind of operation is simple, be easy to construct, spoir is few and the environment-friendly type of short time limit Assembled grouting behind shaft or drift lining steel cylinder pile foundation.
For this reason, the present invention proposes a kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation includes stake cylinder, described stake cylinder by Multiple tube couplings are sequentially assembled vertically;Described stake cylinder is embedded in foundation ditch, and periphery has poured concrete or cement mortar, interior Portion's filling spoir, upper end is provided with the connector being connected with shaft tower tower leg, and bottom is provided with the anchor pole being anchored at bottom of foundation ditch.
Wherein, described two adjacent tube couplings are realized connecting by flange.
Some stiffeners are welded with the inwall of each tube coupling.
Described connector is pyramid support;Described pyramid support one end is spirally connected with the stiffener on the tube coupling of stake cylinder top, separately One end is stretched out outside foundation ditch, and connects with pyramid rack plate, and described pyramid rack plate is provided with the spiral shell being connected with shaft tower tower leg Pit.
Wherein, described stake cylinder bottom welding steel plate, and anchor bolt hole, described anchor pole and described stake cylinder are reserved on steel plate Bottom steel plate is spirally connected fixation.
Wherein, stake cylinder and connecting bolt density are not more than 7850kg/m3, more than Q235 level.
Wherein, stake cylinder, flange, pyramid support and connecting bolt surface are processed using spray zinc.
Wherein, concrete or cement mortar density are not more than 2450kg/m3, comprcssive strength is not less than C20, in 1% hydrochloric acid Solution soaking outside no efflorescence and crackle after 120 hours.
Another object of the present invention is to providing a kind of construction method of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation, bag Include following steps:
1) artificial or machinery digs foundation ditch, and clear bottom is levelling;
2) construction stake bottom anchor pole, by anchor rod anchored in bottom of foundation ditch, the tube coupling of bottommost and anchor pole is fixed, by one successively Tube coupling forms stake cylinder by the upper and lower apical grafting of flange together, thus stake cylinder is embedded in foundation ditch, by stake cylinder with shaft tower tower leg even The connector connecing is installed on the tube coupling of top;
3) casting concrete or cement mortar between foundation pit side-wall and stake cylinder;
4) earthen backfill steel cylinder stake hollow parts are used.
The having the beneficial effects that of technical solution of the present invention:The present invention passes through stake cylinder subsection setup, the assembly when constructing, no Only operation is simple, is easy to constructing operation, and has saved artificial in a large number, the reduction of erection time;Stake hollow parts backfill a large amount of spoirs, energy Enough reduce soil erosion;Single stake cylinder unit weight is lighter, can be controlled in 40kg~100kg, is readily transported;Stake cylinder can be in factory It is prefabricated into various sizes of section and length on demand, realize factory modularization and produce, simple for production, machining accuracy is high, bolt is spelled Dress, easy to assembly;Steel tower is connected by pyramid support with basis, can appear highly on flexible basis.Therefore, economic benefit, Social benefit is notable, has preferable promotional value.
Brief description
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the sectional view of the line A-A along along Fig. 1;
Fig. 3 is the structural representation of anchor pole in the present invention;
Fig. 4 is the structural representation of stake cylinder unit connecting flange in the present invention;
Fig. 5 is pyramid rack plate structural representation in the present invention;
Wherein:1- stake cylinder;2- concrete or cement mortar;Banket in 3- body;4- anchor pole;5- flange;6- pyramid top of support Plate;7- pyramid support, 8- stiffener.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As Figure 1-Figure 5, environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation provided by the present invention, including stake cylinder 1, institute State stake cylinder 1 sequentially assembled by 6 sections of tube couplings;Some stiffeners 8 are also welded with the inwall of each tube coupling, to increase stake cylinder Intensity, improves bearing capacity;Each adjacent tube coupling is spirally connected fixation by being welded on the flange 5 at two ends;Described stake cylinder 1 is embedded in base In hole, stake cylinder 1 top surface is substantially concordant with foundation ditch opening surface;Periphery has poured concrete or cement mortar 2, the internal filling soil body 3, Upper end is provided with the pyramid support 7 being connected with shaft tower tower leg, and bottom is provided with the vertical anchor pole 4 being anchored at prefabricated bottom of foundation ditch.This reality Apply in example, stake cylinder 1 and connecting bolt density are not more than 7850kg/m3, more than Q235 level;Stake cylinder 1, flange 5, pyramid support 7 and Connecting bolt surface is processed using spray zinc;Concrete or cement mortar 2 density are not more than 2450kg/m3, comprcssive strength is not less than C20, outside no efflorescence and crackle after 1% hydrochloric acid solution soaks 120 hours, service life is not less than 60 years;The body 3 that inside bankets is in Hard plastic state.
As shown in Figure 1 and Figure 5, the bottom of pyramid support 7 is passed through in angle steel and the stake cylinder top tube coupling of four support supporting legs Stiffener threaded, top is stretched out outside foundation ditch, and by the angle steel of four support supporting legs be welded under pyramid rack plate 6 Cross junction steel plate bolt connection fix.
As shown in figures 1 and 3, described stake cylinder 1 bottom welding has steel plate, and described steel plate makes stake cylinder bottom opening close in flat Bottom Shape, reserves anchor bolt through hole on steel plate, and described anchor pole 4 one end outer wall is provided with connection screw thread, and described anchor pole 4 is upper It is provided with spacing convex shoulder in connection screw thread bottom, described anchor pole 4 is installed on anchor bolt in the hole, and is fastenedly connected by nut.
The concrete construction method of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation of the present invention is as follows:
1) artificial or machinery digs foundation ditch, and clear bottom is levelling;
2) construction stake bottom anchor pole, by anchor rod anchored in bottom of foundation ditch, the tube coupling of bottommost and anchor pole is spirally connected fixation, by one Section section tube coupling forms stake cylinder by the upper and lower apical grafting of flange, thus stake cylinder is embedded in foundation ditch, in stake cylinder top tube coupling together The connector that upper welding is connected with shaft tower tower leg;
3) casting concrete or cement mortar between foundation pit side-wall and stake cylinder;
4) earthen backfill steel cylinder stake hollow parts are used.
According to specific exemplary embodiment, invention has been described herein.Those skilled in the art is come Say carry out without departing from the scope of the invention suitable replacement or modification will be apparent from.Exemplary embodiment is only It is illustrative, rather than limiting the scope of the present invention, the scope of the present invention be defined by the appended.

Claims (9)

1. a kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation, including stake cylinder (1) it is characterised in that:Described stake cylinder (1) is by many Individual tube coupling is sequentially assembled vertically;Described stake cylinder (1) is embedded in foundation ditch, and periphery has poured concrete or cement mortar (2), internal filling spoir, upper end is provided with the connector being connected with shaft tower tower leg, and bottom is provided with the anchor pole being anchored at bottom of foundation ditch (4).
2. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 1 it is characterised in that:Described adjacent two Individual tube coupling passes through flange (5) and realizes connecting.
3. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 1 and 2 it is characterised in that:In each tube coupling Inwall on be welded with some stiffeners.
4. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 3 it is characterised in that:Described connector is Pyramid support (7);Described pyramid support (7) one end and the stiffener in the tube coupling of stake cylinder top are spirally connected, and the other end stretches out outside foundation ditch, And connect with pyramid rack plate (6), described pyramid rack plate (6) is provided with the screwed hole being connected with shaft tower tower leg.
5. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 4 it is characterised in that:Described stake cylinder (1) Bottom welding steel plate, and anchor bolt hole is reserved on steel plate, described anchor pole (4) and described stake cylinder (1) bottom steel plate are spirally connected solid Fixed.
6. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 5 it is characterised in that:Stake cylinder (1) and company Connecting bolt density is not more than 7850k g/m3, more than Q235 level.
7. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 6 it is characterised in that:Stake cylinder (1), flange (5), pyramid support (7) and connecting bolt surface are processed using spray zinc.
8. environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 1 and 2 it is characterised in that:Concrete or Cement mortar (3) density is not more than 2450k g/m3, comprcssive strength is not less than C20, after 1% hydrochloric acid solution soaks 120 hours Outside no efflorescence and crackle.
9. a kind of construction method of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation according to claim 1, its feature exists In comprising the steps:
1) artificial or machinery digs foundation ditch, and clear bottom is levelling;
2) construction stake bottom anchor pole, by anchor rod anchored in bottom of foundation ditch, the tube coupling of bottommost and anchor pole is fixed, then by one successively Tube coupling forms stake cylinder by the upper and lower apical grafting of flange together, thus stake cylinder is embedded in foundation ditch, by stake cylinder with shaft tower tower leg even The connector connecing is installed on the tube coupling of top;
3) casting concrete or cement mortar between foundation pit side-wall and stake cylinder;
4) earthen backfill steel cylinder stake hollow parts are used.
CN201611073523.4A 2016-11-29 2016-11-29 A kind of construction method of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation Active CN106400832B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083151A (en) * 2018-08-15 2018-12-25 庐江荣睿建设工程有限公司 A kind of stratum pre-reinforcement processing method of basement construction

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285211A (en) * 1991-03-14 1992-10-09 Asahi Chem Ind Co Ltd Foundation structure of building
JP2006328716A (en) * 2005-05-24 2006-12-07 Shimizu Corp Structure and method for underpinning of existing structure and method of constructing new structure near existing structure
CN101250880A (en) * 2007-12-19 2008-08-27 中铁大桥局集团第一工程有限公司 Method for embedding and fixing steel tube concrete pile and steel tube pile anchor
CN204125963U (en) * 2014-10-11 2015-01-28 浙江鸿顺实业有限公司 A kind of communication tower steel pipe pile foundation
CN204780979U (en) * 2015-07-16 2015-11-18 江苏省邮电规划设计院有限责任公司 Install steel -pipe pile basis of anti horizontal force of iron tower fast
CN204898706U (en) * 2015-08-14 2015-12-23 华信咨询设计研究院有限公司 Steel pipe pile foundation communication tower structure
CN206204985U (en) * 2016-11-29 2017-05-31 湖南送变电勘察设计咨询有限公司 A kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285211A (en) * 1991-03-14 1992-10-09 Asahi Chem Ind Co Ltd Foundation structure of building
JP2006328716A (en) * 2005-05-24 2006-12-07 Shimizu Corp Structure and method for underpinning of existing structure and method of constructing new structure near existing structure
CN101250880A (en) * 2007-12-19 2008-08-27 中铁大桥局集团第一工程有限公司 Method for embedding and fixing steel tube concrete pile and steel tube pile anchor
CN204125963U (en) * 2014-10-11 2015-01-28 浙江鸿顺实业有限公司 A kind of communication tower steel pipe pile foundation
CN204780979U (en) * 2015-07-16 2015-11-18 江苏省邮电规划设计院有限责任公司 Install steel -pipe pile basis of anti horizontal force of iron tower fast
CN204898706U (en) * 2015-08-14 2015-12-23 华信咨询设计研究院有限公司 Steel pipe pile foundation communication tower structure
CN206204985U (en) * 2016-11-29 2017-05-31 湖南送变电勘察设计咨询有限公司 A kind of environment-friendly type assembled grouting behind shaft or drift lining steel cylinder pile foundation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083151A (en) * 2018-08-15 2018-12-25 庐江荣睿建设工程有限公司 A kind of stratum pre-reinforcement processing method of basement construction

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Address after: 410015 Room 1411, 226 Electricity Building, Labor West Road, Changsha City, Hunan Province

Co-patentee after: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID HUNAN ELECTRIC POWER CO., LTD.

Patentee after: Hunan Jingyan Electric Power Design Co., Ltd.

Address before: 410015 Room 1411, 226 Electricity Building, Labor West Road, Changsha City, Hunan Province

Co-patentee before: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID HUNAN ELECTRIC POWER CO., LTD.

Patentee before: Hunan Transmission & Distribution Investigation Design and Consultation Co., Ltd.

CP01 Change in the name or title of a patent holder
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CP01 Change in the name or title of a patent holder

Address after: 410015 room 1411, building 226, labour West Road, Changsha, Hunan

Co-patentee after: State Grid Hunan Electric Power Co., Ltd. Institute of economics and technology

Patentee after: Hunan Jingyan Electric Power Design Co., Ltd.

Address before: 410015 room 1411, building 226, labour West Road, Changsha, Hunan

Co-patentee before: ECONOMIC TECHNOLOGY RESEARCH INSTITUTE, STATE GRID HUNAN ELECTRIC POWER CO., LTD.

Patentee before: Hunan Jingyan Electric Power Design Co., Ltd.

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Effective date of registration: 20191031

Address after: 410004 No. 398 Xinshao East Road, Tianxin District, Changsha City, Hunan Province

Co-patentee after: Hunan Jingyan Electric Power Design Co., Ltd.

Patentee after: State Grid Hunan Electric Power Co., Ltd.

Co-patentee after: State Grid Hunan Electric Power Co., Ltd. Institute of economics and technology

Co-patentee after: State Grid Co., Ltd.

Address before: 410015 room 1411, building 226, labour West Road, Changsha, Hunan

Co-patentee before: State Grid Hunan Electric Power Co., Ltd. Institute of economics and technology

Patentee before: Hunan Jingyan Electric Power Design Co., Ltd.