CN103643693B - A kind of prefabricated cross nested type wing plate basis - Google Patents
A kind of prefabricated cross nested type wing plate basis Download PDFInfo
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- CN103643693B CN103643693B CN201310659377.3A CN201310659377A CN103643693B CN 103643693 B CN103643693 B CN 103643693B CN 201310659377 A CN201310659377 A CN 201310659377A CN 103643693 B CN103643693 B CN 103643693B
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Abstract
The invention discloses a kind of prefabricated cross nested type wing plate basis, comprise prefabricated reinforced concrete fish belly type wing plate, transmission tower leg, square hole, rim of a cup, stone bolt, the structure mortar of square cylinder, conical expansion basis, band square hole, square cylinder inserts in the reserved rim of a cup on conical expansion basis, with the space between structure filled with mortar square cylinder and rim of a cup; The cross wing plate layering of prefabricated reinforced concrete with square hole is nested in the outside of square cylinder, with the space between structure filled with mortar square hole and square cylinder; Transmission tower leg is fixed on the upper end of square cylinder by stone bolt.This foundation structure is simple, easy to operate, effectively can improve power transmission tower foundation rigidity in the horizontal direction and overall stability, improve the anti-bending strength of power transmission tower foundation on slope, mountain area, improve the resistance to capsizing of power transmission tower foundation on slope, mountain area.
Description
Technical field
The present invention relates to slope column foot technical field, particularly relate to a kind of novel prefabricated cross nested type wing plate basis, be applicable to the power transmission tower foundation on slope, mountain area, for the resistance to capsizing improving slope column foot provides 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, become inevitable at Construction of The Mountainous Region transmission line of electricity.Water conservancy, highway and other industry, civilian installation build in, also often run into the situation of building building on the slope.Pass through the work transmission line of Freeway of Mountain Range, its column foot is positioned on slope mostly, will face column foot homeostatic problem during design.Therefore, the resistance to capsizing how improving slope, mountain area column foot is the important topic of pendulum in face of engineers and technicians.
At present, clear and definite normative reference is not also had about the method for designing on basis, slope in current specifications, 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, the situation simultaneously easily causing cylinder to fracture because buried depth is excessive, and also can not improve power transmission tower foundation resistance to capsizing on the slope well.
Therefore, in order to improve the resistance to capsizing of slope, mountain area column foot, a kind of economic, reasonable, safe and effective base form of research and development has very important significance.
Summary of the invention
The object of the invention is to there are provided a kind of prefabricated cross nested type wing plate basis, this basis adopts the cross wing plate of prefabricated reinforced concrete of band square hole, layering is nested in the outside of the square cylinder on conical expansion basis, forms the independent foundation under column of the cross wing plate of a kind of band completely newly.This foundation structure is simple, easy to operate, effectively can improve power transmission tower foundation rigidity in the horizontal direction and overall stability, improve the anti-bending strength of power transmission tower foundation on slope, mountain area, improve the resistance to capsizing of power transmission tower foundation on slope, mountain area.
In order to achieve the above object, the present invention adopts following technical measures:
A prefabricated cross nested type wing plate basis, it is made up of the parts such as the cross wing plate of prefabricated reinforced concrete, transmission tower leg, backfill, rim of a cup, structure mortar, stone bolt of square cylinder, conical expansion basis, band square hole.Its annexation is: square cylinder inserts in the reserved rim of a cup on conical expansion basis; The cross wing plate layering of prefabricated reinforced concrete with square hole is 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 described square cylinder is inserted in the middle of rim of a cup, after pouring structure mortar, backfill is added in foundation ditch, 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 and compacting, be filled to after the cross wing plate surface 15 ~ 35cm of first floor, the cross wing plate of the nested second layer, so 2 ~ 5 times repeatedly, finally foundation ditch is filled it up with backfill, domatic fair with slope after compacting.
The present invention compared with prior art, has the following advantages and effect:
1) adopt the cross wing plate of prefabricated reinforced concrete of band 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, so both alleviate the deadweight of wing plate, also saves material simultaneously;
3) prefabricated cross wing plate is the outside that layering is nested in square cylinder equally spacedly when mounted, adds the resistance to overturning of single footing, will improve the resistance to capsizing on the slope of whole column foot widely like this;
4) cross wing plate is nested in square cylinder, is equivalent to the width having thickeied square cylinder, will improve the bending rigidity of column foot widely like this, therefore can reduce the longitudinal steel ratio in square cylinder, save material;
5) by distance between plates and the quantity of the prefabricated cross wing plate of adjustment, the specific requirement of different actual conditions to bending resistance, overturning or slip resistance analysis etc. can be adapted to.
6) square cylinder and conical expansion basis are small-sized concrete prefabricated element, convenient transport, easy to use, decrease in the concrete workload of mountain area job mix.
Comparative study finds: when slope, slope is than being 1:2, when embedded depth of foundation is 2.5m, the limit anchorage of conventional foundation is 65KN, and adopt the base form of this patent, after nested 2 ~ 4 blocks of cross wing plates, limit anchorage brings up to 80 ~ 102KN, improves about 23 ~ 57% than the limit anchorage of conventional foundation.
The present invention is reasonable in design, and structure is simple, improves resistance to capsizing and the anti-bending strength of slope column foot to a great extent, provides a kind of economic, reasonable, safe and effective method to the design of slope column foot in the transmission line of electricity of mountain area.
Accompanying drawing explanation
Fig. 1 is a kind of front elevation view of prefabricated cross nested type wing plate basis.
Fig. 2 is a kind of top view of prefabricated cross nested type wing plate basis.
Fig. 3 is a kind of wing plate detail structure figure of prefabricated cross nested type wing plate basis.
Fig. 4 is a kind of prefabricated cross rim of a cup on nested type wing plate basis and the organigram of stone bolt.
1. square cylinders in figure, 2. conical expansion basis, is 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.
Detailed description of the invention
With reference to the accompanying drawings the present invention is described in further detail below:
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, parts such as structure mortar 15 grade are formed, it is characterized in that: described square cylinder 1 inserts in the reserved rim of a cup 13 on conical expansion basis 2, and fill the space between square cylinder 1 and rim of a cup 13 with structure mortar 15, prefabricated reinforced concrete cross wing plate 3 layering of described band square hole is nested in the outside of square cylinder 1, and fills the space 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 in L-type, and its length is wide 1.5 ~ 2.5 times of post, and diameter is 2 ~ 4cm, and after-pouring concrete forms prefabricated units together with the reinforcing cage colligation of square cylinder 1.
The cross wing plate 3 of prefabricated reinforced concrete of described band square hole, its thickness is 15 ~ 35cm, forms primarily of Yi Zhong square hole district 8 and 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 adapted with the width of square cylinder 1;
Flank 9 is in 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 square cylinder 1 is inserted in the middle of rim of a cup 13, after pouring structure mortar 15, described backfill 6 is added in foundation ditch, 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 and compacting, be filled to after first floor wing plate surface 15 ~ 35cm, nested second layer wing plate, so 2 or 3 or 4 or 5 times repeatedly, finally foundation ditch is filled it up with backfill 6, domatic 7 to maintain an equal level with slope after compacting.
By adjusting distance between plates and the quantity of prefabricated cross wing plate 3, the specific requirement of different actual conditions to bending resistance, overturning or slip resistance analysis etc. can be adapted to.
The scope of application:
The invention provides a kind of novel prefabricated cross nested type wing plate basis, be applicable to the power transmission tower foundation on slope, mountain area.
Claims (5)
1. a prefabricated cross nested type wing plate basis, comprise square cylinder (1), conical expansion basis (2), the cross wing plate of prefabricated reinforced concrete (3) of band square hole, transmission tower leg (5), square hole (10), reserved 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), fills the space between square cylinder (1) and reserved rim of a cup (13) with structure mortar (15); The cross wing plate of prefabricated reinforced concrete with square hole (3) layering is nested in the outside of square cylinder (1), fills the space between square hole (10) and square cylinder (1) with structure mortar (15); Transmission tower leg (5) is fixed on the upper end of square cylinder (1) by stone bolt (14); The cross wing plate of prefabricated reinforced concrete (3) of described band square hole, its thickness is 15 ~ 35cm, be made up of Yi Zhong square hole district (8) and 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) adapted with the width of square cylinder (1), flank (9) is in isosceles trapezoid shape, base angle (12) is 45 ~ 60 °, and chord is 50 ~ 100cm, and the width of wing tip (11) is 10 ~ 20cm.
2. the prefabricated cross nested type wing plate basis of one according to claim 1, 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, reserved rim of a cup (13) is tapered, and its degree of depth is wide 2 ~ 3 times of post.
3. the prefabricated cross nested type wing plate basis of one according to claim 1, is characterized in that: the width of described square cylinder (1) is 20 ~ 40cm, is highly 8 ~ 10 times of width.
4. the prefabricated cross nested type wing plate basis of one according to claim 1, it is characterized in that: described stone bolt (14) is in L-type, its length is wide 1.5 ~ 2.5 times of post, diameter is 2 ~ 4cm, and after-pouring concrete forms prefabricated units together with the reinforcing cage colligation of square cylinder (1).
5. the prefabricated cross nested type wing plate basis of one according to claim 1, it is characterized in that: described conical expansion basis (2) is lain against on slope foundation ditch ground layer (4), square cylinder (1) is inserted in the middle of reserved rim of a cup (13), after pouring structure mortar (15), backfill (6) is added in foundation ditch, be filled to after reserved rim of a cup (13) upper end 20 ~ 40cm, at the upper cross wing plate of nested first floor of square cylinder (1), continue to add backfill (6), be filled to after the 15 ~ 35cm of the cross wing plate surface of first floor, the cross wing plate of the nested second layer, foundation ditch is filled it up with backfill (6), after compacting, domatic with slope (7) maintain an equal level, by distance between plates and the quantity of the adjustment cross wing plate of prefabricated reinforced concrete (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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| Publication Number | Publication Date |
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| CN103643693A CN103643693A (en) | 2014-03-19 |
| CN103643693B true 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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8161698B2 (en) * | 2007-02-08 | 2012-04-24 | Anemergonics, Llc | Foundation for monopole wind turbine tower |
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2013
- 2013-12-09 CN CN201310659377.3A patent/CN103643693B/en not_active Expired - Fee Related
Patent Citations (8)
| 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 |
| 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 |
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| CN103643693A (en) | 2014-03-19 |
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