CN204919585U - A big board basis for colliery collecting space area high tension transmission line - Google Patents
A big board basis for colliery collecting space area high tension transmission line Download PDFInfo
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- CN204919585U CN204919585U CN201520465816.1U CN201520465816U CN204919585U CN 204919585 U CN204919585 U CN 204919585U CN 201520465816 U CN201520465816 U CN 201520465816U CN 204919585 U CN204919585 U CN 204919585U
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Abstract
The utility model relates to a high tension transmission line technical field that is under construction, in particular to a big board basis for colliery collecting space area high tension transmission line, it adopts split type foundation structure form, including basic upper portion and basic lower part, basic upper portion is independent flexible straight column foundation, and basic lower part is the buffer layer for the well word of taking the pterygoid lamina links the girder construction between basic upper portion and the basic lower part, the buffer layer adopts sand cobble bed course as connecting the even buffer layer of girder construction of the independent flexible well word of straightening the column foundation and taking the pterygoid lamina. The utility model provides a colliery collecting space area transmission line foundation uniform settlement's problem not, its consumptive material volume is low, cubic metre of earth and stone volume is little, has practiced thrift the engineering cost cost, has good economy and social.
Description
Technical field:
The utility model relates to ultra-high-tension power transmission line technical field of construction, particularly a kind of large plate base for coal mine gob ultra-high-tension power transmission line.
Background technology:
Along with the development of power grid construction, line corridor day is becoming tight, the problem of transmission line of electricity by way of coal mine gob is outstanding day by day, if design scheme is underestimated the depression in goaf and distortion or is dealt with improperly, serious consequence may be caused to the safe operation of transmission line of electricity, huge loss can be brought.At present, newly-built circuit becomes normality by the situation in goaf, and some engineering is in goaf even completely.For the differential settlement that goaf causes, traditional processing mode is that power transmission tower basis adopts large plate base, hollow large plate base is adopted when steel tower root is opened larger, a kind of large plate base of ultra-high voltage transmission tower disclosed in CN201554031U, comprise the large plate of steel concrete and upper setting thereof four independently straight column type bases, described four independently straight column type basis rectangular distributions on the large plate of described steel concrete, this large plate base can ensure when to a certain degree inhomogeneous deformation occurs ground, destruction to shaft tower can not be caused due to four basic differential settlements, thus avoid the generation of potential safety hazard.Large plate base of the prior art operating condition in engineering is good, also the requirement resisting foundation deformation can be played, but this basis due to concrete and amount of reinforcement large, earthwork evacuation amount is high, spoir inconvenience process etc., not only change the physical relief at tower position place, landforms, destroy original vegetation, very easily form soil erosion, tower position environmental concerns is affected to column foot and stablize.
Along with the raising of electric pressure, the economy of the large plate base of tradition is more and more lower, for the deficiency of the large plate base of tradition, and by transmission line of electricity in the past by the operating experience of coal mine gob, applicant is optimized the large plate base form of structure of tradition, the well word coupling beam of the proposition band wing plate of novelty replaces large plate, provides a kind of novel large plate base for coal mine gob ultra-high-tension power transmission line.
Summary of the invention:
The purpose of this utility model is to provide a kind of large plate base for coal mine gob ultra-high-tension power transmission line, and solve the problem of coal mine gob transmission line tower foundation differential settlement, its consumable quantity is low, and earthwork is little, saves construction costs cost.
For solving the problems of the technologies described above, the utility model takes following technical scheme:
For the large plate base of coal mine gob ultra-high-tension power transmission line, adopt split type foundation structure form, comprise basic top and basic infrastructure, its feature is: basic top is independent flexible column foundation, basic infrastructure is the well word coupling beam structure of band wing plate, is cushion coat between basic top and basic infrastructure.
Cushion coat adopts sand-stone cushion as connecting the cushion coat of independent flexible column foundation with the well word coupling beam structure of band wing plate.
Independent flexible column foundation comprises principal post and tower leg structure, adopts stone bolt to be connected between principal post with tower leg, pulls out, presses down, the requirement of stable and intensity to meet on large plate base, conveniently carries out adjustment righting to large plate base.
Independent flexible column foundation adopts the board-like architecture basics of steel concrete being furnished with reinforcing bar.
Well word coupling beam structure with wing plate is the structure supporting independent flexible column foundation.
For the construction method of the large plate base of coal mine gob ultra-high-tension power transmission line, comprise the following steps:
(1) excavate out foundation pit in coal mine gob, hand excavation or mechanical equivalent of light excavation can be adopted; Foundation pit size is determined with the well word coupling beam structure wing plate width and well word link length of being with wing plate, and considers certain sloping coefficient according to geological conditions; Coupling beam foundation ditch is excavated again, finally to coupling beam foundation ditch compacting leveling after compacting leveling at the bottom of hole, wing plate bottom surface;
(2) formwork in foundation pit, arranges reinforcing bar, at the pre-buried connecting reinforcement of coupling beam and wing plate connected node place, makes coupling beam and wing plate consolidation for overall, forms strip beam, then carry out cast-in-site;
(3) for reducing frictional resistance during basic pushing tow, after the well word coupling beam of band wing plate reaches the maintenance time limit, wing plate is laid certain thickness sand-stone cushion;
(4) formwork, cast-in-site independent flexible column foundation, after reaching the maintenance time limit, is backfilling and compacted, and carries out the measure of basal plane aproll.
The beneficial effects of the utility model are: (1) this large plate base can solve the problem of mining influence district transmission line tower foundation differential settlement preferably by the well word coupling beam of band wing plate; (2) independent flexible column foundation uses the board-like basis of steel concrete of being furnished with reinforcing bar, because it is conducted oneself with dignity comparatively, step rigid foundation is light, thus the downforce reduced ground, more importantly because it is furnished with reinforcing bar, flexibility is larger, non-deformability is strong, not easy fracture, and overall anti-foundation deformation ability is strong; Be convenient to carry out adjustment righting simultaneously, reduce the weight of adjustment righting, guarantee intensity and the integrity on basis self; (3) the relatively traditional large plate base of this large plate base can save about 40% concrete and amount of reinforcement, decreases earthwork, saves and build and run overall cost, have good economic and social benefit.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the large plate base of the utility model;
Fig. 2 is the construction profile of the large plate base of the utility model;
Fig. 3 is the schematic diagram of the well word coupling beam structure of the utility model band wing plate;
Fig. 4 is the structural representation of the utility model independent flexible column foundation.
In figure: 1-independent flexible column foundation, 2-is with the well word coupling beam structure of wing plate, 3-cushion coat, 4-stone bolt, 5-wing plate, 6-coupling beam.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
As shown in figures 1-4, for the large plate base of coal mine gob ultra-high-tension power transmission line, adopt split type foundation structure form, comprise basic top and basic infrastructure, top, basis is independent flexible column foundation 1, basic infrastructure is the well word coupling beam structure 2 of band wing plate, is cushion coat 3 between basic top and basic infrastructure; Cushion coat 3 adopts sand-stone cushion as connecting the cushion coat of independent flexible column foundation 1 with the well word coupling beam structure 2 of band wing plate; Independent flexible column foundation 1 comprises principal post and tower leg structure, adopts stone bolt 4 to be connected between principal post with tower leg; Independent flexible column foundation 1 adopts the board-like architecture basics of steel concrete being furnished with reinforcing bar; Well word coupling beam structure 2 with wing plate is the structure supporting independent flexible column foundation.
In the goaf of 110kV ~ 1100kV overhead transmission line underground mine layered distribution, (adopting empty ratio is 30-100) carries out the construction of this large plate base: (1) excavates out foundation pit in coal mine gob, can adopt hand excavation or mechanical equivalent of light excavation; Foundation pit size is determined with the well word coupling beam structure wing plate width and well word link length of being with wing plate, and considers certain sloping coefficient according to geological conditions; Coupling beam foundation ditch is excavated again, finally to coupling beam foundation ditch compacting leveling after compacting leveling at the bottom of hole, wing plate bottom surface; (2) formwork in foundation pit, arranges reinforcing bar, at the pre-buried connecting reinforcement of coupling beam and wing plate connected node place, makes coupling beam and wing plate consolidation for overall, forms strip beam, then carry out cast-in-site; (3) for reducing frictional resistance during basic pushing tow, after the well word coupling beam of band wing plate reaches the maintenance time limit, wing plate is laid certain thickness sand-stone cushion; (4) formwork, cast-in-site independent flexible column foundation, after reaching the maintenance time limit, is backfilling and compacted, and carries out the measure of basal plane aproll.
This large plate base adopts the well word coupling beam structure of band wing plate to replace the large plate of tradition, solve the problem of goaf transmission line tower foundation differential settlement, independent flexible column foundation uses the board-like basis of steel concrete of being furnished with reinforcing bar to save concrete relative to the large plate base of tradition and amount of reinforcement reaches about 40%, decreases earthwork.
Claims (5)
1. for the large plate base of coal mine gob ultra-high-tension power transmission line, adopt split type foundation structure form, comprise basic top and basic infrastructure, it is characterized in that: basic top is independent flexible column foundation, basic infrastructure is the well word coupling beam structure of band wing plate, is cushion coat between basic top and basic infrastructure.
2. the large plate base for coal mine gob ultra-high-tension power transmission line according to claim 1, is characterized in that: described cushion coat adopts sand-stone cushion as connecting the cushion coat of independent flexible column foundation with the well word coupling beam structure of band wing plate.
3. the large plate base for coal mine gob ultra-high-tension power transmission line according to claim 1, is characterized in that: described independent flexible column foundation comprises principal post and tower leg structure, adopts stone bolt to be connected between principal post with tower leg.
4. the large plate base for coal mine gob ultra-high-tension power transmission line according to claim 3, is characterized in that: described independent flexible column foundation adopts the board-like architecture basics of steel concrete being furnished with reinforcing bar.
5. the large plate base for coal mine gob ultra-high-tension power transmission line according to claim 1, is characterized in that: the well word coupling beam structure of described band wing plate is the structure supporting independent flexible column foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520465816.1U CN204919585U (en) | 2015-07-02 | 2015-07-02 | A big board basis for colliery collecting space area high tension transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520465816.1U CN204919585U (en) | 2015-07-02 | 2015-07-02 | A big board basis for colliery collecting space area high tension transmission line |
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| CN204919585U true CN204919585U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520465816.1U Active CN204919585U (en) | 2015-07-02 | 2015-07-02 | A big board basis for colliery collecting space area high tension transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467360A (en) * | 2022-09-02 | 2022-12-13 | 国网辽宁省电力有限公司锦州供电公司 | Construction method for iron tower foundation in marsh or muddy area |
-
2015
- 2015-07-02 CN CN201520465816.1U patent/CN204919585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467360A (en) * | 2022-09-02 | 2022-12-13 | 国网辽宁省电力有限公司锦州供电公司 | Construction method for iron tower foundation in marsh or muddy area |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 3120, Dalian Road, Jinfeng District, Yinchuan, the Ningxia Hui Autonomous Region Patentee after: The Ningxia Hui Autonomous Region Electric Power Design Institute Co., Ltd. Address before: 750001 East Road, the Great Wall, Yinchuan, Yinchuan, the Ningxia Hui Autonomous Region Patentee before: Ningxia Hui Autonomous Region Electric Power Design Institute |
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| CP03 | Change of name, title or address |