CN103643693A - Prefabricated cross-shaped nested wing plate foundation - Google Patents
Prefabricated cross-shaped nested wing plate foundation Download PDFInfo
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- CN103643693A CN103643693A CN201310659377.3A CN201310659377A CN103643693A CN 103643693 A CN103643693 A CN 103643693A CN 201310659377 A CN201310659377 A CN 201310659377A CN 103643693 A CN103643693 A CN 103643693A
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Abstract
The invention discloses a prefabricated cross-shaped nested wing plate foundation which comprises a square cylinder, a conical expansion foundation, prefabricated reinforced concrete cross-shaped wing plates with square holes, a line tower supporting pin, a square hole, a cup rabbet, foundation bolts and structural mortar, wherein the square cylinder is inserted into the reserved cup rabbet of the conical expansion foundation, and a gap between the square cylinder and the cup rabbet is filled with the structural mortar; the prefabricated reinforced concrete cross-shaped wing plates with the square holes are nested on the outer side of the square cylinder in a layered mode, and the gap between the square hole and the square cylinder is filled with the structural mortar; the line tower supporting pin is fixed at the upper end of the square cylinder through the foundation bolts. The foundation is simple in structure and convenient to operate, can effectively improve rigidity in the horizontal direction and overall stability of a power transmission tower foundation, and improves bending resistance and resistance to capsizing of the power transmission tower foundation on a mountainous slope.
Description
Technical field
The present invention relates to slope column foot technical field, relate in particular to a kind of novel prefabricated cross nested type wing plate basis, be applicable to the transmission of electricity column foot on slope, mountain area, for improving the resistance to capsizing of slope column foot, provide a set of effective method.
Background technology
China is the country on mountain more than, and mountain area area accounts for 2/3 of national total area.Along with the progressively enforcement of the national large-scale transmission of electricity projects such as transferring electricity from the west to the east, at Construction of The Mountainous Region transmission line of electricity, become inevitable.In water conservancy, highway and other industry, civilian installation are built, also often run into the situation of building on the slope building.Pass through the work transmission line of Freeway of Mountain Range, its column foot is positioned on slope mostly, will face the homeostatic problem of column foot during design.Therefore the resistance to capsizing that, how to improve slope, mountain area column foot is the important topic of pendulum in face of engineers and technicians.
At present, method for designing about basis, slope in current specifications does not also have clear and definite normative reference, in order to improve the overturning or slip resistance analysis performance of slope column foot, the depth of burying of traditional independent foundation under column often arranges larger, the economic problems of waste constructional materials will be there are like this, situation simultaneously that easily cause cylinder to fracture because buried depth is excessive, and also can not improve well transmission of electricity column foot resistance to capsizing on the slope.
Therefore,, in order to improve the resistance to capsizing of slope, mountain area column foot, research and develop a kind of economy, reasonable, safe and effective base form has very important significance.
Summary of the invention
The object of the invention is to be to provide a kind of prefabricated cross nested type wing plate basis, this basis adopts the cross wing plate of prefabricated reinforced concrete with square hole, layering is nested in the outside of the square cylinder on conical expansion basis, forms a kind of brand-new independent foundation under column with cross wing plate.This foundation structure is simple, easy to operate, can effectively improve transmission of electricity column foot rigidity in the horizontal direction and whole stability, has improved the anti-bending strength of transmission of electricity column foot on slope, mountain area, has improved the resistance to capsizing of transmission of electricity column foot on slope, mountain area.
In order to achieve the above object, the present invention adopts following technical measures:
A kind of prefabricated cross nested type wing plate basis, it consists of parts such as square cylinder, conical expansion basis, the cross wing plate of prefabricated reinforced concrete with square hole, transmission tower leg, backfill, rim of a cup, structure mortar, stone bolt.Its annexation is: square cylinder inserts in the reserved rim of a cup on conical expansion basis; With the cross wing plate layering of prefabricated reinforced concrete of square hole, be nested in the outside of square cylinder; The stone bolt that transmission tower leg passes through is fixed on the upper end of square cylinder.
Described conical expansion basis lies against on the ground layer in the foundation ditch of slope, and by the middle of described square cylinder insertion rim of a cup, after pouring structure mortar, in foundation ditch, add backfill, be filled to after the 20～40cm of rim of a cup upper end, cross wing plate on square cylinder described in nested first floor, continue to add backfill compacting, be filled to after the cross wing plate surface 15～35cm of first floor, the cross wing plate of the nested second layer, 2～5 times so repeatedly, finally foundation ditch is filled it up with to backfill, after compacting, maintain an equal level with slope is domatic.
The present invention compared with prior art, has the following advantages and effect:
1) adopt the cross wing plate of prefabricated reinforced concrete with square hole, during installation, be directly nested in the outside of square cylinder, easy and simple to handle, convenient construction;
2) middle part of the cross wing plate of prefabricated reinforced concrete is square, and 4 flanks are trapezoidal shape, have so both alleviated the deadweight of wing plate, has also saved material simultaneously;
3) prefabricated cross wing plate is the outside that layering is nested in square cylinder equally spacedly when mounted, has increased the resistance to overturning of single footing, will improve widely the resistance to capsizing on the slope of whole column foot like this;
4) cross wing plate is nested in square cylinder, has been equivalent to thicken the width of square cylinder, will improve widely the bending rigidity of column foot like this, therefore can reduce the longitudinal steel ratio in square cylinder, has saved material;
5) by adjusting distance between plates and the quantity of prefabricated cross wing plate, can adapt to the specific requirement of different actual conditions to bending resistance, overturning or slip resistance analysis etc.
6) square cylinder and conical expansion basis are small-sized concrete prefabricated element, and convenient transportation is easy to use, has reduced in the concrete workload of mountain area job mix.
Comparative study is found: when slope, slope is than being 1:2, when embedded depth of foundation is 2.5m, the limit anchorage on common basis is 65KN, and the base form of employing this patent, after nested 2～4 blocks of cross wing plates, limit anchorage is brought up to 80～102KN, than the limit anchorage on common basis, has improved approximately 23～57%.
The present invention is reasonable in design, simple in structure, has improved to a great extent resistance to capsizing and the anti-bending strength of slope column foot, to the design of slope column foot in the transmission line of electricity of mountain area, provides a kind of economy, reasonable, safe and effective method.
Accompanying drawing explanation
Fig. 1 is the front elevation view on a kind of prefabricated cross nested type wing plate basis.
Fig. 2 is the top view on a kind of prefabricated cross nested type wing plate basis.
Fig. 3 is the wing plate detail structure figure on a kind of prefabricated cross nested type wing plate basis.
Fig. 4 is the rim of a cup on a kind of prefabricated cross nested type wing plate basis and the organigram of stone bolt.
1. square cylinders in figure, 2. conical expansion basis, 3. with the cross wing plate of prefabricated reinforced concrete of square hole, 4. slope foundation ditch ground layer, 5. transmission tower leg, 6. backfill, 7. slope is domatic, 8.Yi Zhong square hole district, 9. flank, 10. square hole, 11. wing tips, 12. base angles, 13. rims of a cup, 14. stone bolt, 15. structure mortars.
The specific embodiment
With reference to the accompanying drawings the present invention is described in further detail below:
Known according to Fig. 1～Fig. 4, a kind of novel prefabricated cross nested type wing plate basis, it is by square cylinder 1, conical expansion basis 2, the cross wing plate 3 of prefabricated reinforced concrete with square hole, slope foundation ditch ground layer 4, transmission tower leg 5, backfill 6, slope domatic 7, Yi Zhong square hole district 8, flank 9, square hole 10, wing tip 11, base angle 12, rim of a cup 13, stone bolt 14, structure mortar 15 parts such as grade form, it is characterized in that: described square cylinder 1 inserts in the reserved rim of a cup 13 on conical expansion basis 2, and the space of filling between square cylinder 1 and rim of a cup 13 with structure mortar 15, cross wing plate 3 layerings of the described prefabricated reinforced concrete with square hole are nested in the outside of square cylinder 1, and the space of filling between square hole 10 and square cylinder 1 with structure mortar 15, described transmission tower leg 5 is fixed on the upper end of square cylinder 1 by stone bolt 14, described conical expansion basis 2 lies against on slope foundation ditch ground layer 4.
The width of described square cylinder 1 is 20～40cm, is highly 8～10 times of width;
Described stone bolt 14 is L-type, and its length is wide 1.5～2.5 times of post, and diameter is 2～4cm, forms prefabricated units with after-pouring concrete together with the reinforcing cage colligation of square cylinder 1.
The cross wing plate 3 of the described prefabricated reinforced concrete with square hole, its thickness is 15～35cm, main You Yizhong square hole district 8 forms with forward and backward and left and right two groups of symmetrical flanks 9; Yi Zhong square hole district 8 has reserved the square hole 10 that the width with square cylinder 1 adapts;
Flank 9 is isosceles trapezoid shape, and base angle 12 is 45～60 °, and chord is 50～100cm, and the width of wing tip 11 is 10～20cm.
Described conical expansion basis 2 is prefabricated reinforced concrete members, and it is highly wide 3～5 times of post;
Described rim of a cup 13 is tapered, and its degree of depth is wide 2～3 times of post.
Described conical expansion basis 2 is lain against on slope foundation ditch ground layer 4, and by the middle of square cylinder 1 insertion rim of a cup 13, after pouring structure mortar 15, in foundation ditch, add described backfill 6, be filled to after rim of a cup 13 upper end 20～40cm, the cross wing plate 3 of nested first floor on square cylinder 1, continue to add backfill 6 compacting, be filled to after first floor wing plate surface 15～35cm, nested second layer wing plate, 2 or 3 or 4 or 5 times so repeatedly, finally foundation ditch is filled it up with to backfill 6, after compacting, maintain an equal level with slope domatic 7.
By adjusting distance between plates and the quantity of prefabricated cross wing plate 3, can adapt to the specific requirement of different actual conditions to bending resistance, overturning or slip resistance analysis etc.
The scope of application:
The invention provides a kind of novel prefabricated cross nested type wing plate basis, be applicable to the transmission of electricity column foot on slope, mountain area.
Claims (6)
1. a prefabricated cross nested type wing plate is basic, comprise square cylinder (1), conical expansion basis (2), the prefabricated reinforced concrete fish belly type wing plate (3) with square hole, transmission tower leg (5), square hole (10), rim of a cup (13), stone bolt (14), structure mortar (15), it is characterized in that: square cylinder (1) inserts in the reserved rim of a cup (13) on conical expansion basis (2), with structure mortar (15), fills the space between square cylinder (1) and rim of a cup (13); With the cross wing plate of prefabricated reinforced concrete (3) layering of square hole, be nested in the outside of square cylinder (1), with structure mortar (15), fill the space between square hole (10) and square cylinder (1); Transmission tower leg (5) is fixed on the upper end of square cylinder (1) by stone bolt (14).
2. a kind of novel prefabricated cross nested type wing plate according to claim 1 is basic, it is characterized in that: described conical expansion basis (2) is imbedded in slope foundation ditch ground layer (4), conical expansion basis (2) is highly wide 3 ~ 5 times of post, rim of a cup (13) is tapered, and its degree of depth is wide 2 ~ 3 times of post.
3. a kind of novel prefabricated cross nested type wing plate according to claim 1 basis, is characterized in that: the width of described square cylinder (1) is 20 ~ 40cm, highly is 8 ~ 10 times of width.
4. a kind of novel prefabricated cross nested type wing plate according to claim 1 is basic, it is characterized in that: described stone bolt (14) is L-type, its length is wide 1.5 ~ 2.5 times of post, diameter is 2 ~ 4cm, forms prefabricated units with after-pouring concrete together with the reinforcing cage colligation of square cylinder (1).
5. a kind of novel prefabricated cross nested type wing plate according to claim 1 is basic, it is characterized in that: the described cross wing plate of the prefabricated reinforced concrete with square hole (3), its thickness is 15 ~ 35cm, You Yizhong square hole district (8) forms with forward and backward and left and right two groups of symmetrical flanks (9), Yi Zhong square hole district (8) has reserved the square hole (10) that the width with square cylinder (1) adapts, flank (9) is isosceles trapezoid shape, base angle (12) is 45 ~ 60 °, chord is 50 ~ 100cm, and the width of wing tip (11) is 10 ~ 20cm.
6. a kind of novel prefabricated cross nested type wing plate according to claim 1 is basic, it is characterized in that: described conical expansion basis (2) is lain against on slope foundation ditch ground layer (4), in the middle of square cylinder (1) insertion rim of a cup (13), after pouring structure mortar (15), in foundation ditch, add backfill (6), be filled to after rim of a cup (13) upper end 20 ~ 40cm, at the upper cross wing plate of nested first floor (3) of square cylinder (1), continue to add backfill (6), be filled to after first floor wing plate surface 15 ~ 35cm, nested second layer wing plate, foundation ditch is filled it up with to backfill (6), after compacting, maintain an equal level with slope domatic (7), by adjusting distance between plates and the quantity of prefabricated cross wing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659377.3A CN103643693B (en) | 2013-12-09 | 2013-12-09 | A kind of prefabricated cross nested type wing plate basis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310659377.3A CN103643693B (en) | 2013-12-09 | 2013-12-09 | A kind of prefabricated cross nested type wing plate basis |
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| CN103643693A true CN103643693A (en) | 2014-03-19 |
| CN103643693B CN103643693B (en) | 2016-01-20 |
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| CN201310659377.3A Expired - Fee Related CN103643693B (en) | 2013-12-09 | 2013-12-09 | A kind of prefabricated cross nested type wing plate basis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718818A (en) * | 2021-08-04 | 2021-11-30 | 山东电力工程咨询院有限公司 | Prefabricated arm-expanding type compression-resistant and pulling-resistant vibration damping foundation for power transmission tower |
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| US20080190058A1 (en) * | 2007-02-08 | 2008-08-14 | Paul Gerald Migliore | Foundation for monopole wind turbine tower |
| CN201512805U (en) * | 2009-11-09 | 2010-06-23 | 中国电力科学研究院 | Excavated spread pole and tower foundation of side wing plate |
| CN201809778U (en) * | 2010-10-19 | 2011-04-27 | 河南省电力勘测设计院 | Excavated disk pile foundation for iron tower of power transmission lines |
| CN201809781U (en) * | 2010-10-19 | 2011-04-27 | 河南省电力勘测设计院 | Cross shaped foundation of transmission line iron tower |
| WO2011073502A1 (en) * | 2009-11-10 | 2011-06-23 | Peikko Group Oy | Arrangement in connection with foundations of mast-like structures |
| CN202298638U (en) * | 2011-08-19 | 2012-07-04 | 河南省电力公司安阳供电公司 | Inclined column iron tower foundation |
| 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 |
| CN203034473U (en) * | 2012-11-23 | 2013-07-03 | 山东杭萧钢构有限公司 | Inserting type column base of steel structure |
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2013
- 2013-12-09 CN CN201310659377.3A patent/CN103643693B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952273A (en) * | 2006-11-15 | 2007-04-25 | 广东省电力设计研究院 | Digging foundation with baffle and its construction method |
| US20080190058A1 (en) * | 2007-02-08 | 2008-08-14 | Paul Gerald Migliore | Foundation for monopole wind turbine tower |
| CN201512805U (en) * | 2009-11-09 | 2010-06-23 | 中国电力科学研究院 | Excavated spread pole and tower foundation of side wing plate |
| WO2011073502A1 (en) * | 2009-11-10 | 2011-06-23 | Peikko Group Oy | Arrangement in connection with foundations of mast-like structures |
| CN201809778U (en) * | 2010-10-19 | 2011-04-27 | 河南省电力勘测设计院 | Excavated disk pile foundation for iron tower of power transmission lines |
| CN201809781U (en) * | 2010-10-19 | 2011-04-27 | 河南省电力勘测设计院 | Cross shaped foundation of transmission line iron tower |
| CN202298638U (en) * | 2011-08-19 | 2012-07-04 | 河南省电力公司安阳供电公司 | Inclined column iron tower foundation |
| 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 |
| CN203034473U (en) * | 2012-11-23 | 2013-07-03 | 山东杭萧钢构有限公司 | Inserting type column base of steel structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718818A (en) * | 2021-08-04 | 2021-11-30 | 山东电力工程咨询院有限公司 | Prefabricated arm-expanding type compression-resistant and pulling-resistant vibration damping foundation for power transmission tower |
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| CN103643693B (en) | 2016-01-20 |
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