CN104695467A - Construction method of tree-root-shaped power pole tower pile cluster - Google Patents
Construction method of tree-root-shaped power pole tower pile cluster Download PDFInfo
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- CN104695467A CN104695467A CN201310651183.9A CN201310651183A CN104695467A CN 104695467 A CN104695467 A CN 104695467A CN 201310651183 A CN201310651183 A CN 201310651183A CN 104695467 A CN104695467 A CN 104695467A
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- concrete
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- reinforcing bar
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 26
- 239000010959 steel Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a construction method of a tree-root-shaped power pole tower pile cluster. The method comprises the following steps: punching predetermined curve holes in soil out of a square foundation pit by taking the square foundation pit formed by centers of four bearing platform by using a tube-perforation orientation drill in a slantingly downward manner, inserting steel bars sleeved by rubber tube bodies into the curve holes, subsequently filling gaps between the rubber tube bodies and the steel bars with concrete, and completing construction of the pile cluster after concrete setting. According to the tree-root-shaped support pile cluster of a cluster-shaped structure, the quantity of motion of each support pile post is relatively large; after the cluster is formed, the comprehensive quantity of motion is low; the bearing platform is supported and tensioned in all directions, so that the bearing platform is relatively stable and is free of cracks under the action of the fluctuating wind power.
Description
Technical field
The present invention relates to the construction method of a kind of tree root shape electric tower stake clump.
Background technology
As the base configuration supporting steel tower king pile post, when supporting layer is relatively dark, as shown in Figure 1, squeeze into the relatively little pile body of multiple bore 50 in ground after, utilizing steel concrete to make the footing 51 connecting these pile body 50 tops, is (with reference to the following patent document 1 etc.) generally used by the mode that this footing 51 is connected with the king pile post 52 of steel tower.
Further, for the fixture construction of above-mentioned footing 51 and king pile post 52, roughly distinguish, there is the modes such as bolt fixed mode, anchor parts fixed form, base plate fixed form.Bolt fixed mode as shown in Figure 1, it is the mode utilizing many stone bolt 54 to be fixedly located at the substrate 53 on king pile post 52 bottom surface, above-mentioned anchor parts fixed form is as shown in Fig. 2 (A) ~ (C), by welding etc., installing plate 56 is fixedly installed on the bottom side face of the king pile post be embedded on footing 51, the fixed form that many places are set will be configured in around across paired angle steel 57 bolted joints of this installing plate about 56, above-mentioned base plate fixed form as shown in Figure 3, utilize the mode that the base plate 58 of the ring-type projecting outward in the bottom surface and/or outside that are embedded in the king pile post 52 in footing 51 etc. is fixed.On the other hand, the juncture at footing and stake top adopts mode as described below: as shown in Fig. 4 (A), utilizes the base plate juncture be fixed at base plates 59 such as the outside at the stake top in footing 51 of submerging ring-types projecting outward; Or as shown in Fig. 4 (B), the reinforcing bar juncture etc. that the many reinforcing bars 60 carrying out that traverse a top and footing 51 engage is set.
On the other hand, in order to the simplification of optimized integration structure, in following patent document 2, propose a kind of iron tower foundation structure, the rotation press-in steel pipe pile 70 lower end with the excavation blade larger than pile body diameter is along inclined direction pressed into and is arranged at the end, ground, the upper end rotating press-in steel pipe pile 70 is fastened on the bottom of steel tower foot 71 and forms, the rotation that along inclined direction arranges at the bottom of ground press-in steel pipe pile 70 and the steel tower foot 71 extended upward linearly.
Patent document: Unexamined Patent 9-3882 publication.
Patent document: JP 2003-166254 publication.
The patent that application number is 200580029551.X provides a kind of base configuration of steel tower, this patent is thought, in the basis of power supply steel tower, as shown in Figure 5, conduct oneself with dignity with steel tower, compared with impact that electric wire is conducted oneself with dignity, be subject to the impact of the wind loads such as the laying tension of electric wire, typhoon or monsoon more consumingly.Consequently, compared with the whole compression loads produced with other factors, turning torque becomes large, in the steel tower foot of therefore downwind side, effect has compression load, and in the steel tower foot of side of being in the wind effect have be about as much as compression load (pressing-in force) 70% drawing load (pulling capacity).Further, due to the couple that above-mentioned pressing-in force and pulling capacity produce, effect has moment of deflection, and effect has horizontal force.Therefore, at basis (footing) place in support iron column foot portion, as shown in Figure 6, if on the fixed part of king pile post 52 and footing 51, footing is excessively shallow, then can produce the shear fissure 61 of the taper centered by the base portion of king pile post 52, cause the destruction of fixed part.Further, as shown in Figure 7, at pile body 50 too when the outward flange of footing 51, the shear fissure 62 of isolating crackle shape may be produced from fixed part to outside, produce the destruction of fixed part.Further, when footing is crossed thin, as shown in the drawing, the problems such as the shear fissure 61 of the taper sometimes produced centered by pile body 50 are had.Therefore this patent proposes a kind of base configuration of steel tower; as shown in Figure 8, being be arranged at many piles body that bore is relatively little in base configuration form in ground, changing into as possibility by making the small-scale on basis; can the engineering time be shortened, reduce excavation amount, reduce concreting amount etc.In the base configuration of the steel tower that the many piles body 1 squeezed in ground is engaged by concrete body 3 with the king pile post 2 of steel tower, concrete body 3 is built by concrete 6 in the steel pipe 5 along the vertical direction at internal face with the shearing resistance flange 4 that multistage is fixedly installed along the circumferential direction and the structure made, the top of the many piles body 1 squeezed in described ground is engaged in the lower side of concrete body 3, and, multistage base plate 7 is provided with on outside the bottom of steel tower king pile post 2, the king pile post part (K) being provided with this base plate 7 is embedded in concrete body 3.
Occur the reason of crackle for power tower foundation cushion cap (this patent becomes concrete body), this patent thinks that, because pulling force causes, such explanation is not comprehensive.Because power tower is before construction, the load of its cushion cap is all through calculating, can resist maximum wind velocity.And the actual wind speed occurred is no greater than most value during design.In this case still there is crackle in cushion cap, just can not think it is only that the pulling force having wind speed to cause causes crackle.The reason of crackle is caused to be due to wind, namely the flowing of air.Because the fringe conditions of air flowing is complicated, wind is not Uniform Flow in fact, but with the flowing of sometimes fast and sometimes slow form, it is pulsation that concrete manifestation goes out wind speed.And record and the wind speed observed are moment wind speed or mean wind speed, only have Continuous Observation anemometer or watch the record of automatic anemobiagraph, could find that wind is all pulsation, this pulsation that yes under the consistent prerequisite of wind direction, the power be namely applied on electric wire and power tower is the pulsation that a lasting direction superposes within a period of time, its concrete manifestation form is the active force of power tower to basis is exactly except pulling force and pressure, has also superposed a vibration force.Because the cushion cap of design can both renitency and pulling force, if so cause the vibration force of advocating of cushion cap crackle, and this patent only address only the problem of pressure and pulling force, does not solve the problem of vibration force.
Summary of the invention
Making electric power column foot shake the technical problem occurring crackle to solve fluctuating wind speed to the active force of electric wire and power tower, the invention provides the construction method of a kind of tree root shape electric tower stake clump.
Technical scheme of the present invention is as follows:
The construction method of a kind of tree root shape electric tower stake clump of the present invention:
1.. the square foundation ditch formed with four cushion cap centers, for boundary, gets predetermined curved slot with poling orientation drill obliquely in the earth outside square foundation ditch;
2.. rubber body is enclosed within reinforcing bar;
3.. rubber body and reinforcing bar are inserted curved slot;
4.. concrete is filled with in the gap between rubber body and reinforcing bar;
5.. concrete setting.
The supporting stake clump of the plexi structure of this tree root, although the amount that each root supporting stake can move is larger, after Cheng Cong, integrated motion amount is very little, under the effect of pulsation wind-force, cushion cap firmly exists by the support in each direction and tension, does not have the appearance of crackle.This just maintains the basis of power tower effectively, and extends the life-span of power tower.
Accompanying drawing explanation
Fig. 1 represents the base configuration of existing steel tower, and (A) is longitdinal cross-section diagram, and (B) is view in transverse section;
Fig. 2 is the anchor parts fixed form representing king pile post 52, and (A) is footing longitdinal cross-section diagram, and (B) is the top view of anchor parts, and (C) is the lateral view of anchor parts;
Fig. 3 represents the base plate fixed form of king pile post 52, and (A) is longitdinal cross-section diagram, and (B) is view in transverse section;
Fig. 4 (A) is the figure of the base plate fixed form representing pile body 50, and (B) is the figure representing reinforcing bar fixed form;
Fig. 5 is the state diagram of wind load to the External Force Acting that iron tower foundation produces;
Fig. 6 is the figure of the failure mode (one) representing footing;
Fig. 7 is the figure of the failure mode (its two) representing footing;
Fig. 8 represents the base configuration of the steel tower of patent 200580029551.X first embodiment, and (A) is longitdinal cross-section diagram, and (B) is view in transverse section;
Fig. 9 is the structural representation of each supporting stake;
Figure 10 is the structural representation of supporting stake in construction;
Figure 11 is the schematic diagram of rear root pile power tower foundation pile clump of having constructed.
Detailed description of the invention
With reference to Figure 10 and Figure 11, the construction method of a kind of tree root shape electric tower stake clump of the present invention, comprises following steps:
1. the square foundation ditch formed with four cushion cap 105 centers, for boundary, gets predetermined curved slot with poling orientation drill obliquely to the earth 103 outside square foundation ditch;
2.. rubber body 102 is enclosed within reinforcing bar 104;
3.. rubber body 102 and reinforcing bar 104 are inserted curved slot;
4.. concrete is filled with in the gap between rubber body 102 and reinforcing bar 104;
5.. concrete setting.
As shown in Figure 9 and Figure 10, after concrete setting, reinforcing bar 104 and concrete form steel concrete cylinder 101 in rubber body 102.By rubber body 102 with steel concrete cylinder 101 is public forms each supporting stake 106..
Because steel concrete cylinder 101 overcoat of power tower has rubber body 102, during each tower stake of the vibration passing of power tower foundation institute wind-engaging, rubber body 102 can damping, reduces the vibration that fluctuating wind speed causes.And be laid to the supporting stake 106 of plexi structure, as shown in figure 11, just as the root system of large tree is general, support and strain cushion cap from each direction, the mix of activities amount of cushion cap 105 is cancelled out each other, and firm quarter at ground, the appearance of Crack prevention.
Claims (3)
1. a form of construction work for tree root shape electric tower stake clump, is characterized in that: comprise the following steps:
1.. the square foundation ditch formed with four cushion cap (105) centers, for boundary, gets predetermined curved slot with poling orientation drill obliquely in the earth (103) outside square foundation ditch;
2.. rubber body (102) is enclosed within reinforcing bar (104);
3.. rubber body (102) and reinforcing bar (104) are inserted curved slot;
4.. concrete is filled with in the gap between rubber body (102) and reinforcing bar (104);
5.. concrete setting.
2. the form of construction work of tree root shape electric tower stake clump as claimed in claim 1, it is characterized in that: above-mentioned step 4. in be filled with concrete between rubber body (102) and reinforcing bar (104) gap in refer to expansive concrete be full of rubber body (102), fill space after making concrete expansion, compress curve hole wall.
3. the form of construction work of tree root shape electric tower stake clump as claimed in claim 1, it is characterized in that: above-mentioned step 4. in be filled with concrete between rubber body (102) and reinforcing bar (104) gap in refer to concrete pressurization injected in rubber body (102), make concrete curing rear compression curve hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651183.9A CN104695467A (en) | 2013-12-08 | 2013-12-08 | Construction method of tree-root-shaped power pole tower pile cluster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651183.9A CN104695467A (en) | 2013-12-08 | 2013-12-08 | Construction method of tree-root-shaped power pole tower pile cluster |
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| Publication Number | Publication Date |
|---|---|
| CN104695467A true CN104695467A (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310651183.9A Pending CN104695467A (en) | 2013-12-08 | 2013-12-08 | Construction method of tree-root-shaped power pole tower pile cluster |
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| CN (1) | CN104695467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106905A (en) * | 2019-05-06 | 2019-08-09 | 贵州电网有限责任公司六盘水供电局 | A kind of joint pylon pile foundation |
-
2013
- 2013-12-08 CN CN201310651183.9A patent/CN104695467A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106905A (en) * | 2019-05-06 | 2019-08-09 | 贵州电网有限责任公司六盘水供电局 | A kind of joint pylon pile foundation |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |