CN105040723A - Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof - Google Patents
Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof Download PDFInfo
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- CN105040723A CN105040723A CN201510432166.5A CN201510432166A CN105040723A CN 105040723 A CN105040723 A CN 105040723A CN 201510432166 A CN201510432166 A CN 201510432166A CN 105040723 A CN105040723 A CN 105040723A
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- cement pole
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- retainer ring
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Abstract
The invention discloses a structure for preventing sand backfill and treating concrete pole up-pulling and a construction method thereof. The structure comprises a concrete pole, a fixing ring, a fixing pull line, a fixing base plate and an annular fixing piece. The construction method of the structure comprises the steps that 1, a concrete pole pit is excavated; 2, the upper edge of the annular fixing piece is fixedly connected with the bottom face of the fixing base plate; 3, the annular fixing piece and the fixing base plate are integrally placed into the bottom of the concrete pole pit; 4, the concrete pole is sleeved with the fixing ring; 5, the concrete pole is vertically placed in the concrete pole pit; 6, the fixing pull line is installed; 7, the concrete pole pit is filled with backfill soil and compacted, and therefore construction is finished. According to the structure and the construction method thereof, the concrete pole up-pulling problem caused by soil freezing in winter and melting in summer in the north area of China is fundamentally solved, the structure is simple, construction is convenient, the adopted materials are low in cost, the construction period is short, and the maintenance cost needed for solving the concrete pole up-pulling problem every year is reduced.
Description
Technical field:
The present invention relates to one and prevents from cement pole pulling out structure and construction method thereof, particularly relates on a kind of sand control earthen backfill improvement cement pole and pulls out structure and construction method thereof.
Background technology:
In northern China most area, there is the winter and freeze the summer and melt in the soil body, thus causes transmission line of electricity part of cement bar generating period pulls out, and on every annual mean is maximum, the amount of pulling out can reach 16cm, also to there is cement pole and tilt and the phenomenon of falling bar in some areas, serious threat line security operation.Body frost heaving is the prerequisite occurring cement pole pulls out, and on pull out generation after, the muddy water sandstone do not freezed around cement pole pole-footing falls into filling hole, and after Second Year is thawed, pole-footing can not fall reposition, is to cause cement pole cumulative bad pulls out and finally causes down the basic reason of bar.
At present, China prevents from cement pole pulls out and mainly contains three class measures, and it is essential that play bracing wire, righting and ridging reinforcing, these class methods need be carried out every year, need at substantial human and material resources, financial resources.Equations of The Second Kind is mainly set about from the process bar base soil body, base oneself upon three Fundamentals eliminating or weaken generation frost heave and (there is the soil of heave susceptibility, certain moisture supply, suitable freezing condition and time), adopt draining water proof, coarse sand changes and fill out and beat the methods such as quicklime pile and process cement pole bar base, such methods engineering amount is great, and frost heave effect is not durable.An other class methods object is the opposing of refinforced cement bar and adapts to freeze thawing deformability, comprise and adopt dark stake formula, spread foundation and isolation method etc., these class methods enhance on cement pole and pull out drag, but shortcoming is that the muddy water sandstone cannot avoiding not freezing around dead man root falls into hole, once generation cement pole pulls out, be difficult to fall after rise to original position, cause in accumulation and pull out, fundamentally do not solve on cement pole and pull out problem.
Summary of the invention:
Propose one both constructability, save overall expenses, strengthen on shaft and pull out resistance, on the improvement cement pole shaft that can prevent again sand from backfill, draw out method solves an urgent demand of the regional transmission line cement pole of frost heave pulling out problem.
First object of the present invention is that providing a kind of sand control earthen backfill to administer on cement pole pulls out structure.
Second object of the present invention is to provide a kind of sand control earthen backfill to administer the construction method of cement pole pulling out structure.
First object of the present invention is implemented by following technical scheme, a kind of sand control earthen backfill is administered on cement pole and is pulled out structure, it comprises cement pole, retainer ring, fixing bracing wire, fixed base plate and annular stator, the below of described fixed base plate is provided with described annular stator, the top edge of described annular stator is fixedly connected with the bottom surface of described fixed base plate, described cement pole is vertically arranged at above described fixed base plate, and described cement pole bottom is fixed on the end face of described fixed base plate, retainer ring is arranged with above described cement pole, some fixing bracing wires of straining are provided with between described retainer ring and described fixed base plate, one end of described fixing bracing wire and the edge conjunction of described fixed base plate, the other end is connected with described retainer ring, described retainer ring is positioned at more than ground surface, described cement pole below described retainer ring, described fixed base plate and described annular stator are all embedded in the soil layer on below earth's surface.
Preferably, described retainer ring is metal ring, and described fixing bracing wire is wire, and described fixed base plate is corrosion resistant plate, and described annular stator is ring stainless steel sheet, and the lower edge of described ring stainless steel sheet is blade-like.
Concrete, described soil layer is divided into frozen soil layer and non-frozen soil layer, and the upper strata of described non-frozen soil layer is described frozen soil layer.
Preferably, described fixed base plate and described annular stator be all embedded in described in non-frozen soil layer.
Preferably, some described fixing bracing wires are uniformly distributed.
Second object of the present invention is implemented by following technical scheme, and the construction method of cement pole pulling out structure is administered in a kind of sand control earthen backfill, and it comprises the steps:
(1) bury underground cement pole position dig cement pole hole, cement pole hole the degree of depth be greater than frozen soil layer thickness;
(2) top edge of annular stator is fixedly connected with the bottom surface of fixed base plate, forms an entirety; The structure design of annular stator and fixed base plate, while resistance is pulled out in increase, effectively prevents sand from backfilling, has stopped the generation of cement pole shaft pulling out problem.
(3) entirety that described annular stator and described fixed base plate are formed is put into described cement pole and cheat bottom, and described annular stator is vertically placed, make described fixed base plate form a horizontal plane;
(4) sheathed retainer ring on cement pole, and described retainer ring is fixed on described cement pole;
(5) vertically established by described cement pole in described cement pole hole, be fixed together bottom described cement pole with the end face of described fixed base plate, now, described retainer ring is above water;
(6) be equidistantly fixed on respectively on the edge of described fixed base plate one end of some fixing bracing wires, the other end is equidistantly fixed on described retainer ring respectively, and will fix bracing wire tension;
(7) add flat by described cement pole hole backfill, compacting, completes construction.
Preferably, described retainer ring is metal ring, described fixing bracing wire is wire, described fixed base plate is corrosion resistant plate, described annular stator is ring stainless steel sheet, top edge and the described corrosion resistant plate bottom surface of described ring stainless steel sheet are welded to connect, and the end face of described cement pole bottom reinforcement bars and described corrosion resistant plate is welded to connect, and the two ends of wire are welded to connect with described metal ring and described corrosion resistant plate respectively.Utilize wire, metal ring and corrosion resistant plate to weld, make cement pole become to be integrated with corrosion resistant plate, increase the total loading of shaft, increase on shaft and pull out resistance.
Preferably, the lower limb of described ring stainless steel sheet is blade-like, inserts in the bottom soil body of described cement pole hole.
Operating principle illustrates: the weight of corrosion resistant plate and ring stainless steel sheet increases the total loading of cement pole shaft, adds the compression frost-heave force that above sun-dried mud brick gravity above corrosion resistant plate and corrosion resistant plate, frozen soil layer is downward simultaneously.
(1) when frozen soil layer thickness is less, when the adhesion (freezing plateau resistance) of frozen soil and cement pole is not enough to overcome the total loading of shaft, sun-dried mud brick gravity and compress frost-heave force, the method effectively prevent the generation of cement pole pulling out phenomenon.
(2) when frozen soil layer thickness is larger, freezing plateau resistance make cement pole shaft occur a certain amount of on when pulling out, ring stainless steel sheet inside is made to form hole, the muddy water sandstone do not freezed can be effectively stoped to fall into hole around, after thawing to Second Year, ring stainless steel sheet reinserts below sun-dried mud brick, and hole disappears, cement pole shaft falls reposition, effectively prevent on cement pole shaft and pulls out.
The invention has the advantages that: 1, the inventive method only need excavate sun-dried mud brick above corrosion resistant plate when constructing, and engineering quantity is little, without the need to extensive construction, greatly reduction of erection time, reducing construction cost; 2, sand control earthen backfill of the present invention is administered and cement pole is pulled out structure primary raw material used is the stainless steel of constant weight, and this material price is cheap, effectively controls improvement cost; 3, when frozen soil layer thickness is less, prevent from cement pole shaft pulls out Be very effective; 4, when frozen soil layer thickness is larger, by the rising of ring stainless steel sheet, falling and sand control earthen backfill effect, can effectively prevent from cement pole shaft pulls out phenomenon; 5, the present invention fundamentally solves the northern area of China, melt on the cement pole that causes pull out problem because the soil winter freezes the summer, and structure is simple, easy construction, material therefor is with low cost, duration is short, greatly reduces every year for solution cement pole pulling out the maintenance maintenance cost needed for problem.
Accompanying drawing illustrates:
A kind of sand control earthen backfill improvement cement pole pulls out structural representation to Fig. 1.
Cement pole 1, metal ring 2, ground 3 after frost heave, original ground 4, frozen soil layer 5, wire 6, non-frozen soil layer 7, corrosion resistant plate 8, ring stainless steel sheet 9.
Detailed description of the invention:
Embodiment 1: as shown in Figure 1, a kind of sand control earthen backfill is administered on cement pole and is pulled out structure, and it comprises cement pole 1, metal ring 2, wire 6, corrosion resistant plate 8 and ring stainless steel sheet 9, and the lower edge of ring stainless steel sheet 9 is blade-like.The below of corrosion resistant plate 8 is provided with ring stainless steel sheet 9, the top edge of ring stainless steel sheet 9 and the bottom surface of corrosion resistant plate 8 are welded to connect, cement pole 1 is vertically arranged at above corrosion resistant plate 8, and cement pole 1 bottom is fixed on the end face of corrosion resistant plate 8, metal ring 2 is arranged with above cement pole 1, be provided with the some wires strained 6 between metal ring 2 and corrosion resistant plate 8, some wires 6 are uniformly distributed.One end of wire 6 and the edge of corrosion resistant plate 8 are welded to connect, and the other end and metal ring 2 are welded to connect, and metal ring 2 is positioned at more than ground surface, and the cement pole 1 below metal ring 2, corrosion resistant plate 8 and ring stainless steel sheet 9 are all embedded in the soil layer on below earth's surface.Soil layer is divided into frozen soil layer 5 and non-frozen soil layer 7, and the upper strata of non-frozen soil layer 7 is frozen soil layer 5.Corrosion resistant plate 8 and ring stainless steel sheet 9 are all embedded in non-frozen soil layer 7.
After soil body generation frost heave, ground has the rising of certain amplitude, and as shown in Figure 1, after frost heave, ground 3 is higher than original ground 4.
Operating principle illustrates: the weight of corrosion resistant plate 8 and ring stainless steel sheet 9 increases the total loading of cement pole 1 shaft, adds the compression frost-heave force that above sun-dried mud brick gravity above corrosion resistant plate 8 and corrosion resistant plate 8, frozen soil layer is downward simultaneously.
(1) when frozen soil layer 5 thickness is less, when frozen soil layer 5 is not enough to overcome the total loading of shaft, sun-dried mud brick gravity and compress frost-heave force with the adhesion (freezing plateau resistance) of cement pole 1, the method effectively prevent the generation of cement pole 1 pulling out phenomenon.
(2) when frozen soil layer 5 thickness is larger, freezing plateau resistance make cement pole 1 shaft occur a certain amount of on when pulling out, ring stainless steel sheet 9 inside is made to form hole, the muddy water sandstone do not freezed can be effectively stoped to fall into hole around, after thawing to Second Year, ring stainless steel sheet 9 reinserts below sun-dried mud brick, and hole disappears, cement pole 1 shaft falls reposition, effectively prevent on cement pole 1 shaft and pulls out.
Embodiment 2: the construction method of cement pole pulling out structure is administered in embodiment 1 one kinds of sand control earthen backfills, and it comprises the steps:
(1) bury underground cement pole 1 position dig cement pole hole, cement pole hole the degree of depth be greater than frozen soil layer 5 thickness;
(2) bottom surface of the top edge of ring stainless steel sheet 9 and corrosion resistant plate 8 is welded to connect, forms an entirety;
(3) entirety that ring stainless steel sheet 9 and corrosion resistant plate 8 are formed is put into cement pole and cheat bottom, the lower limb of ring stainless steel sheet 9 is blade-like, insert in the bottom soil body of cement pole hole, and ring stainless steel sheet 9 is vertically placed, make corrosion resistant plate 8 form a horizontal plane;
(4) sheathed metal ring 2 on cement pole 1, and metal ring 2 is fixed on cement pole 1;
(5) vertically established by cement pole 1 in cement pole hole, be welded together bottom cement pole 1 with the end face of corrosion resistant plate 8, now, metal ring 2 is above water;
(6) be equidistantly welded on respectively on the edge of corrosion resistant plate 8 one end of some wires 6, the other end is equidistantly welded on metal ring 2 respectively, and is strained by wire 6;
(7) add flat by cement pole hole backfill, compacting, completes construction.
Claims (8)
1. a sand control earthen backfill is administered on cement pole and is pulled out structure, it is characterized in that, it comprises cement pole, retainer ring, fixing bracing wire, fixed base plate and annular stator, the below of described fixed base plate is provided with described annular stator, the top edge of described annular stator is fixedly connected with the bottom surface of described fixed base plate, described cement pole is vertically arranged at above described fixed base plate, and described cement pole bottom is fixed on the end face of described fixed base plate, retainer ring is arranged with above described cement pole, some fixing bracing wires of straining are provided with between described retainer ring and described fixed base plate, one end of described fixing bracing wire and the edge conjunction of described fixed base plate, the other end is connected with described retainer ring, described retainer ring is positioned at more than ground surface, described cement pole below described retainer ring, described fixed base plate and described annular stator are all embedded in the soil layer on below earth's surface.
2. a kind of sand control earthen backfill according to claim 1 is administered on cement pole and is pulled out structure, it is characterized in that, described retainer ring is metal ring, described fixing bracing wire is wire, described fixed base plate is corrosion resistant plate, described annular stator is ring stainless steel sheet, and the lower edge of described ring stainless steel sheet is blade-like.
3. a kind of sand control earthen backfill according to claim 1 is administered on cement pole and is pulled out structure, and it is characterized in that, described soil layer is divided into frozen soil layer and non-frozen soil layer, and the upper strata of described non-frozen soil layer is described frozen soil layer.
4. a kind of sand control earthen backfill according to claim 3 is administered on cement pole and is pulled out structure, it is characterized in that, non-frozen soil layer described in described fixed base plate and described annular stator are all embedded in.
5. a kind of sand control earthen backfill according to claim 1 is administered on cement pole and is pulled out structure, and it is characterized in that, some described fixing bracing wires are uniformly distributed.
6. a construction method of cement pole pulling out structure is administered in sand control earthen backfill, and it is characterized in that, it comprises the steps:
(1) bury underground cement pole position dig cement pole hole, cement pole hole the degree of depth be greater than frozen soil layer thickness;
(2) top edge of annular stator is fixedly connected with the bottom surface of fixed base plate, forms an entirety;
(3) entirety that described annular stator and described fixed base plate are formed is put into described cement pole and cheat bottom, and described annular stator is vertically placed, make described fixed base plate form a horizontal plane;
(4) sheathed retainer ring on cement pole, and described retainer ring is fixed on described cement pole;
(5) vertically established by described cement pole in described cement pole hole, be fixed together bottom described cement pole with the end face of described fixed base plate, now, described retainer ring is above water;
(6) be equidistantly fixed on respectively on the edge of described fixed base plate one end of some fixing bracing wires, the other end is equidistantly fixed on described retainer ring respectively, and will fix bracing wire tension;
(7) add flat by described cement pole hole backfill, compacting, completes construction.
7. the construction method of cement pole pulling out structure is administered in a kind of sand control earthen backfill according to claim 6, it is characterized in that, described retainer ring is metal ring, described fixing bracing wire is wire, described fixed base plate is corrosion resistant plate, described annular stator is ring stainless steel sheet, top edge and the described corrosion resistant plate bottom surface of described ring stainless steel sheet are welded to connect, the end face of described cement pole bottom reinforcement bars and described corrosion resistant plate is welded to connect, and the two ends of wire are welded to connect with described metal ring and described corrosion resistant plate respectively.
8. the construction method of cement pole pulling out structure is administered in a kind of sand control earthen backfill according to claim 7, and it is characterized in that, the lower limb of described ring stainless steel sheet is blade-like, inserts in the bottom soil body of described cement pole hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510432166.5A CN105040723B (en) | 2015-07-22 | 2015-07-22 | Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof |
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| CN201510432166.5A CN105040723B (en) | 2015-07-22 | 2015-07-22 | Structure for preventing sand backfill and treating concrete pole up-pulling and construction method thereof |
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| CN105040723A true CN105040723A (en) | 2015-11-11 |
| CN105040723B CN105040723B (en) | 2017-01-25 |
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Cited By (4)
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| CN108643680A (en) * | 2018-05-17 | 2018-10-12 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of structure for preventing soil freezing heave from causing to pull out on electric pole |
| CN111827767A (en) * | 2020-07-31 | 2020-10-27 | 海南信强实业有限公司 | Novel electric pole |
| CN112681400A (en) * | 2020-12-07 | 2021-04-20 | 徐州华显凯星信息科技有限公司 | Frozen soil area wire pole frost heaving prevention uplift device |
| CN115949283A (en) * | 2023-03-13 | 2023-04-11 | 国网吉林省电力有限公司辽源供电公司 | Severe cold area has pole fixing device who prevents frostbite and pull out function |
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| CN204898702U (en) * | 2015-07-22 | 2015-12-23 | 国家电网公司 | Cement pole up -pull structure is administered in sand control earthen backfill |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643680A (en) * | 2018-05-17 | 2018-10-12 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of structure for preventing soil freezing heave from causing to pull out on electric pole |
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| CN112681400A (en) * | 2020-12-07 | 2021-04-20 | 徐州华显凯星信息科技有限公司 | Frozen soil area wire pole frost heaving prevention uplift device |
| CN112681400B (en) * | 2020-12-07 | 2023-11-03 | 徐州华显凯星信息科技有限公司 | Frozen soil area wire pole frost heaving prevention pull-up device |
| CN115949283A (en) * | 2023-03-13 | 2023-04-11 | 国网吉林省电力有限公司辽源供电公司 | Severe cold area has pole fixing device who prevents frostbite and pull out function |
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| Publication number | Publication date |
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| CN105040723B (en) | 2017-01-25 |
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Effective date of registration: 20170511 Address after: No. 86 West Xicheng District, Beijing, Chang'an Avenue Co-patentee after: STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER ENERGY SAVING SERVICES Co.,Ltd. Patentee after: State Grid Corporation of China Co-patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. Address before: 100031 Xicheng District, Chang'an Avenue, No. 86, Co-patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. Patentee before: State Grid Corporation of China |
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Address after: No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: State Grid Inner Mongolia East Power Integrated Energy Service Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER ENERGY SAVING SERVICES Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID EASTERN INNER MONGOLIA POWER Co.,Ltd. |
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