CN204780975U - A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit - Google Patents

A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit Download PDF

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Publication number
CN204780975U
CN204780975U CN201520473827.4U CN201520473827U CN204780975U CN 204780975 U CN204780975 U CN 204780975U CN 201520473827 U CN201520473827 U CN 201520473827U CN 204780975 U CN204780975 U CN 204780975U
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CN
China
Prior art keywords
cushion cap
stirrup
millimeters
steel pipe
anchor
Prior art date
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 - Fee Related
Application number
CN201520473827.4U
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Chinese (zh)
Inventor
胡斌
冯康
程建林
林和
刘林萍
吴群雄
徐非非
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Lishui Zhengyang Electric Power Design Institute Co Ltd
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Lishui Zhengyang Electric Power Design Institute Co Ltd
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Priority to CN201520473827.4U priority Critical patent/CN204780975U/en
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Publication of CN204780975U publication Critical patent/CN204780975U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit, including 8 stocks, 2 interior stirrups and 9 outer stirrups, the basis top is the cushion cap, and the cushion cap is drawn to dig through a little by the highly weathered rock body and is formed by concrete placement, and through rag bolt and the anchor log connection of cushion cap with the steel pipe pole, the anchor log anchor is downthehole in the rock of grout, inserts the stock in the anchor eye, sets up swelling agent and rubble concrete layer around the stock, and the stock lower extreme is connected with rag bolt, and the stock upper end is connected with 9 outer stirrups, 2 interior stirrups respectively, and main muscle welds with 9 outer stirrups, 2 interior stirrups respectively. The utility model discloses go up soil here down under the rock geology circumstances, will backfill partial and some highly weathered rock excavation and form the cushion cap, with the pouring of steel pipe pole rag bolt in the cushion cap, suitably draw the cushion cap below simultaneously and dig, the way that adopts the machine to punch in the rock adopts the rock to draw and digs the compound basis back of anchor log, a basic cost is about country rock stone greatly and builds in 40% of basic cost.

Description

The four loop terminal steel pipe poles for medium-voltage distribution circuit are drawn and are dug anchoring pile composite foundation
Technical field
The utility model relates to steel pipe pole basis, and the four loop terminal steel pipe poles particularly related to for medium-voltage distribution circuit are drawn and dug anchoring pile composite foundation.
Background technology
Steel pipe pole is mainly used in cities and towns, the greenbelt in development zone and edges of pavements, the place that municipal pipeline is densely covered often, these regions, foundation construction should not adopt heavy excavation, footing foundation and slab foundation need heavy excavation all should not adopt because floor space is larger, therefore adopt pile type foundation in a large number.Pile type foundation is owing to adopting mechanical equivalent of light excavation cost higher, general employing hand excavation, but pile type foundation hand excavation working face is narrow, the degree of depth is dark, potential safety hazard is large, and construction speed is slow, and carries out hand excavation's operation on roadside, road, affect to pedestrian and vehicle on the one hand, the vehicle of dealing on the other hand also exists security risk constantly to constructor.Traditional pile type foundation also exists hand excavation in rock geology, and comparatively difficulty is very large, and construction speed is slow, the problem that construction cost is high.
Utility model content
The purpose of this utility model four loop terminal steel pipe poles be to provide for medium-voltage distribution circuit are drawn and are dug anchoring pile composite foundation, solve traditional pile type foundation in prior art to there is hand excavation in rock geology comparatively difficulty is very large, construction speed is slow, the problem that construction cost is high.
The technical scheme that the utility model adopts is: the four loop terminal steel pipe poles for medium-voltage distribution circuit are drawn and dug anchoring pile composite foundation, comprise 8 vertical anchor poles, 24 vertical main muscle, the outer stirrup of the interior stirrup of 2 square horizontal and 9 square horizontal, described basic top is cushion cap, cushion cap is square, the every limit of cushion cap arranges 3 anchor poles, between every 2 anchor poles, 3 main muscle are set, after the interior stirrup in 2, cushion cap top, 1 outer stirrup is set, on the interior stirrup in 2, cushion cap bottom, another 1 outer stirrup is set, cushion cap is made up of highly weathered rock body layer and layer of concrete, layer of concrete is positioned at inside highly weathered rock body layer, steel pipe pole stone bolt is cast in cushion cap, anchor pole is inserted in anchor hole, stone concrete layer is set around anchor pole, the outer stirrup in respectively with 3, anchor pole upper end, 2 interior stirrups connect, main muscle respectively with 9 outer stirrups, 2 interior stirrup welding, anchor hole 6 diameter is 150 millimeters, the Equivalent Distributed diameter of anchor pole 4 is 2263 millimeters, the spacing of adjacent anchor pole 4 is 800 millimeters, the center square of anchor pole 4 is 3.84 square metres.
Described height of foundation is 3900 millimeters, and cushion cap top length is 1800 millimeters, and cushion cap bottom length is 2400 millimeters, cushion cap is high 1400 millimeters, cushion cap overhead 500 millimeters, and bolt diameter is 32 millimeters, main muscle diameter is 20 millimeters, and interior stirrup diameter is 14 millimeters, and outer stirrup diameter is 8 millimeters.
The weight of described expansion agent is the 5%-10% of cement weight.
Described main muscle model is HRB335, and main muscle welding rod is E50 type, and the model of interior stirrup and outer stirrup is HPB235, and the welding rod model of interior stirrup and outer stirrup is E43 type.
Described cushion cap concrete adopts C30 concrete, and anchor pole adopts C30 pea gravel concreten.
The utility model compared with prior art tool has the following advantages: on this under soil under rock geological condition, part and part highly weathered rock excavation formation cushion cap will be backfilled, steel pipe pole stone bolt is cast in cushion cap, dig suitably drawing below cushion cap simultaneously, the way that machine punches is adopted in rock, be designed to novel drawing dig anchoring pile composite foundation and replace original pile type foundation, steel pipe pole rock is drawn and is dug anchoring pile composite foundation and saved construction costs greatly, after employing rock is drawn and is dug anchoring pile composite foundation, a foundation cost is approximately 40% of geological diagnostics Embed based cost, concrete square amount is by the 12.8m of Embed based 3be reduced to 4.5m 3, steel weight is reduced to 609 kilograms by 762 kilograms of Embed based, and construction period was reduced to 0.5 hour by 80 hours, and cost is reduced to 1.5 ten thousand yuan by 3.2 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is top view of the present utility model;
In figure, 1 main muscle; 2 outer stirrups; Stirrup in 3; 4 anchor poles; 5 cushion caps; 6 anchor holes.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As Fig. 1 and Fig. 2, the four loop terminal steel pipe poles for medium-voltage distribution circuit are drawn and are dug anchoring pile composite foundation, comprise 8 vertical anchor poles, 24 vertical main muscle, the outer stirrup of the interior stirrup of 2 square horizontal and 9 square horizontal, described basic top is cushion cap, cushion cap 5 is square, the every limit of cushion cap 5 arranges 34 anchor poles, 3 main muscle 1 are set between every 2 anchor poles 4, after the interior stirrup 3 in 2, cushion cap 5 top, 1 outer stirrup 2 is set, another 1 outer stirrup 2 is set on the interior stirrup 3 in 2, cushion cap 5 bottom, cushion cap 5 is made up of highly weathered rock body layer and layer of concrete, layer of concrete is positioned at inside highly weathered rock body layer, steel pipe pole stone bolt is cast in cushion cap 5 li, the slotting anchor pole 4 of anchor hole 6 li, anchor pole 4 surrounding arranges stone concrete layer, 4 outer stirrups 2 in respectively with 3, anchor pole 4 upper end, 2 interior stirrups 3 connect, main muscle 1 respectively with 9 outer stirrup 2, 2 interior stirrups 3 weld, anchor hole 6 diameter is 150 millimeters, the Equivalent Distributed diameter of anchor pole 4 is 2263 millimeters, the spacing of adjacent anchor pole 4 is 800 millimeters, the center square of anchor pole 4 is 3.84 square metres.
Described height of foundation is 3900 millimeters, cushion cap 5 top length is 1800 millimeters, cushion cap 5 bottom length is 2400 millimeters, cushion cap 5 is high 1400 millimeters, cushion cap 5 overhead 500 millimeters, anchor pole 4 diameter is 32 millimeters, and main muscle 1 diameter is 20 millimeters, interior stirrup 3 diameter is 14 millimeters, and outer stirrup 2 diameter is 8 millimeters.The weight of described expansion agent is the 5%-10% of cement weight.
Described main muscle 1 model is HRB335, and main muscle welding rod is E50 type, and the model of interior stirrup 3 and outer stirrup 2 is HPB235, and the welding rod model of interior stirrup 3 and outer stirrup 2 is E43 type.
Described cushion cap 5 concrete adopts C30 concrete, and answers disposable pouring shaping, and anchor pole 4 adopts C30 pea gravel concreten.
Anchor hole 6 by hole wall cleaning and should be rinsed well before grouting, and the off time of perforate and pouring should be no more than 2 days.
Anchor hole 6 must not enter rainwater, avoids bottom to deposit, and anchor hole 6 by hole wall cleaning and should be rinsed well before grouting, and the off time of perforate and pouring should be no more than 2 hours.Anchor hole 6 should accurately setting-out, and stone bolt 6 is placed in the middle anchor hole 6 planted agent.
Anchor pole 4, anchor slab, nut all need galvanizing.
Cement used by the utility model adopts Portland cement, strength grade 42.5Mpa; Used lower margin nut and screw thread peace GB193-81/GB196-81 and GB197-81 processing; Used reinforcing bar adopts two-sided joint welding to meet 5d; Adopt one side joint welding to meet 10d, all steel bar weldings scoop out observes " reinforcement welding and control of acceptance " (JGJ18-96).Be applicable to four loop terminal steel pipe poles, steel pipe pole maximum horizontal power is 84KN, maximal bending moment standard value 1088KN*M, and geological conditions is 0 to 1.5 meters is backfill, and less than 1.5 meters is highly weathered rock.
Dig the application implementation in rock geology of anchoring pile composite foundation, adopt mechanization to replace artificial construction, can speed up the work, improve workmanship, ensure construction safety, reduce construction costs.
When steel pipe pole basis for medium-voltage distribution circuit runs into severely-weathered, middle weathering rock geology, design novel drawing and dig anchoring pile composite foundation, its form is that upper strata adopts cushion cap, draw a little bottom cushion cap and dig, lower floor's mechanical punching, quantity and hole depth can determine as calculated afterwards according to actual geological condition, promote mechanized construction, accelerating construction progress to reach, save concrete and amount of reinforcement, reduction construction costs, ensure the object such as construction safety, basic environmental protection.
Especially earth's surface highly weathered rock is blown out loosening because of massif, and backfill for afforestation of city in below ground 1.5 meters, on this under soil under rock geological condition, part and part highly weathered rock excavation formation cushion cap will be backfilled, steel pipe pole stone bolt is cast in cushion cap, digging suitably drawing below cushion cap simultaneously, in rock, adopting the way that machine punches, be designed to novel drawing and dig anchoring pile composite foundation and replace original pile type foundation.
Draw and dig anchoring pile composite foundation and effectively steel pipe pole and rock are connected as a single entity, utilize the overturning or slip resistance analysis performance of rock to meet the force request of steel pipe pole.
The region that mountain area rock is more, when city steel pipe pole rock foundation designs, adopts to draw and digs anchoring pile composite foundation and replace traditional Rock Embed based, in the design and construction of distribution line, all have positive meaning.Adopt when running into rock geology in the steel pipe pole basic engineering of power transmission sequence to draw and dig anchoring pile composite foundation and be applicable to too.
On top, backfill is excavated, and highly weathered rock body after drawing a little and digging, then carries out concreting, forms top cushion cap 5, the overturning moment that the composite foundation opposing steel pipe pole that bottom rock mass scope is implanted into dowel formation transmits and horizontal applied force.Draw the external force of digging mechanical characteristic opposing upper bar tower structure that anchoring pile composite foundation makes full use of severely-weathered, middle weathered rock and transmitting, to ensure to stablize the anchoring of tower structure.
After the utility model adopts rock to draw and dig anchoring pile composite foundation, a foundation cost is approximately 40% of geological diagnostics Embed based cost, the four loop terminal steel pipe poles for medium-voltage distribution circuit draw dig anchoring pile composite foundation concrete square amount by the 10.4m of Embed based 3be reduced to 3.79m 3, steel weight is reduced to 370.65 kilograms by 520.5 kilograms of Embed based, and construction period was reduced to 0.5 hour by 64 hours, and cost is reduced to 1.1 ten thousand yuan by 2.8 ten thousand yuan.Draw the utility model comparatively rock socketed foundation greatly can reduce base concrete consumption, reduce basic steel, reduce construction costs; be apparent that the most and shorten the foundation construction duration greatly, and environmental protection, construction safety etc. are all extremely important.In environmental benefit and economic benefit, it has obvious advantage than socketed foundation.
It should be noted last that, above embodiment is only unrestricted for illustration of the technical solution of the utility model, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model.

Claims (5)

1. draw for four loop terminal steel pipe poles of medium-voltage distribution circuit and dig anchoring pile composite foundation, it is characterized in that, comprise 8 vertical anchor poles (4), 24 vertical main muscle (1), the interior stirrup (3) of 2 square horizontal and the outer stirrup (2) of 9 square horizontal, described basic top is cushion cap (5), cushion cap (5) is square, the every limit of cushion cap (5) arranges 3 anchor poles (4), between every 2 anchor poles (4), 3 main muscle (1) are set, after the interior stirrup (3) of 2, cushion cap (5) top, 1 outer stirrup (2) is set, on the interior stirrup (3) of 2, cushion cap (5) bottom, another 1 outer stirrup (2) is set, cushion cap (5) is made up of highly weathered rock body layer and layer of concrete, layer of concrete is positioned at inside highly weathered rock body layer, it is inner that steel pipe pole stone bolt is cast in cushion cap (5), anchor hole (6) is inner inserts anchor pole (4), anchor pole (4) arranges stone concrete layer around, respectively with 3, anchor pole (4) upper end outer stirrup (2), 2 interior stirrups (3) connect, main muscle (1) respectively with 9 outer stirrups (2), 2 interior stirrup (3) welding, anchor hole (6) diameter is 150 millimeters, the Equivalent Distributed diameter of anchor pole (4) is 2263 millimeters, the spacing of adjacent anchor pole (4) is 800 millimeters, the center square of anchor pole (4) is 3.84 square metres.
2. the four loop terminal steel pipe poles for medium-voltage distribution circuit according to claim 1 are drawn and are dug anchoring pile composite foundation, it is characterized in that, described height of foundation is 3900 millimeters, cushion cap (5) top length is 1800 millimeters, cushion cap (5) bottom length is 2400 millimeters, cushion cap (5) is high 1400 millimeters, cushion cap (5) overhead 500 millimeters, anchor pole (4) diameter is 32 millimeters, main muscle (1) diameter is 20 millimeters, interior stirrup (3) diameter is 14 millimeters, and outer stirrup (2) diameter is 8 millimeters.
3. the four loop terminal steel pipe poles for medium-voltage distribution circuit according to claim 1 are drawn and are dug anchoring pile composite foundation, it is characterized in that, the weight of described expansion agent is the 5%-10% of cement weight.
4. the four loop terminal steel pipe poles for medium-voltage distribution circuit according to claim 1 are drawn and are dug anchoring pile composite foundation, it is characterized in that, described main muscle (1) model is HRB335, main muscle (1) welding rod is E50 type, the model of interior stirrup (3) and outer stirrup (2) is HPB235, and the welding rod model of interior stirrup (3) and outer stirrup (2) is E43 type.
5. the four loop terminal steel pipe poles for medium-voltage distribution circuit according to claim 1 are drawn and are dug anchoring pile composite foundation, it is characterized in that, described cushion cap (5) concrete adopts C30 concrete, and anchor pole (4) adopts C30 pea gravel concreten.
CN201520473827.4U 2015-06-30 2015-06-30 A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit Expired - Fee Related CN204780975U (en)

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Application Number Priority Date Filing Date Title
CN201520473827.4U CN204780975U (en) 2015-06-30 2015-06-30 A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520473827.4U CN204780975U (en) 2015-06-30 2015-06-30 A four return circuit terminal steel pipe poles are drawn and are dug compound basis of anchor log for medium voltage electric distribution circuit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360549A (en) * 2018-01-09 2018-08-03 上海斯耐迪工程咨询有限公司 Anchor pole bar planting foundation construction method of the mountainous region photovoltaic gradient more than 25 degree of angles
CN113431075A (en) * 2021-07-27 2021-09-24 中国电建集团福建省电力勘测设计院有限公司 Herringbone pile anchor assembly type foundation suitable for low-voltage power transmission line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360549A (en) * 2018-01-09 2018-08-03 上海斯耐迪工程咨询有限公司 Anchor pole bar planting foundation construction method of the mountainous region photovoltaic gradient more than 25 degree of angles
CN113431075A (en) * 2021-07-27 2021-09-24 中国电建集团福建省电力勘测设计院有限公司 Herringbone pile anchor assembly type foundation suitable for low-voltage power transmission line

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118

Termination date: 20160630

CF01 Termination of patent right due to non-payment of annual fee