CN201857620U - Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower - Google Patents
Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower Download PDFInfo
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- CN201857620U CN201857620U CN2010205949513U CN201020594951U CN201857620U CN 201857620 U CN201857620 U CN 201857620U CN 2010205949513 U CN2010205949513 U CN 2010205949513U CN 201020594951 U CN201020594951 U CN 201020594951U CN 201857620 U CN201857620 U CN 201857620U
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Abstract
The utility model discloses a device for conducting a vertical anti-pulling static loading experiment to a pile and board foundation of an electricity transmission tower. The device comprises a reaction beam, a jack, a pressure-bearing anti-pulling steel plate, an anti-pulling steel plate, anti-pulling bolts, anti-pulling nuts, anchor bolts and anchor nuts, wherein the jack is placed on the reaction beam, the anti-pulling steel plate is connected with the anti-pulling bolts through the anti-pulling nuts, and a foundation pier, the pressure-bearing anti-pulling steel plate and the anti-pulling steel plate are connected through the anti-pulling nuts, the anti-pulling bolts, the anchor bolt and the anchor nuts. The pressure-bearing anti-pulling steel plate is provided with connecting holes for four anchor bolts and connecting holes for four anti-pulling bolts, the reaction beam is spliced through three I-shaped steels, screw threads are distributed on the whole anti-pulling bolt, the reaction beam is placed on a force-bearing stack, and a backing board is additionally arranged in the middle of the reaction beam. The device has the advantages of simple structure, convenience of operation, low cost, convenience of assembly and disassembly, and easiness of popularization and application, and is extremely applicable for anti-pulling static loading experiments of pile and board foundations of electricity transmission towers and similar foundations.
Description
Technical field
The utility model relates to that ground more shallow at the bearing stratum buried depth and that crust layer is thicker in the industries such as electric power, building is handled and the device of vertically pulling-resistant static loading test is carried out on the basis, more specifically relates to a kind of device that carries out the experiment of vertically pulling-resistant static load at power transmission and transformation iron tower pile plate foundation.It is not only applicable to the electric power pylon pile plate foundation, and is suitable for too carrying out connection basis with superstructure by stone bolt in other ground industry.
Background technology
Along with the continuous development of national economy, also more and more stronger to the electric power energy dependence, and China's energy skewness, it is essential therefore to set up huge power transmission network, and this has proposed new challenge to current power grid construction.On the one hand, transmission line of electricity will pass through the very bad zone of geological conditions, as weak mud area etc.; On the other hand, since increasing of causing of Global climate change, especially wind load as extreme weathers such as heavy rain, severe snows on pull out effect etc.Therefore, under new environment, reduce the use of ploughing in order to protect environment, pile plate foundation has been suggested, and can be applied in more and more widely in the middle of the engineering.
The anti-pulling capacity of pile plate foundation mainly is made up of the frictional resistance between basic self gravitation and the stake soil, and for the one-level buildings pile, the anti-pulling capacity standard value of regulation single pile should be determined by pulling out static load test on the on-the-spot single pile among China's " technical code for building pile foundation " JGJ94, for pull out on the pile plate foundation bearing capacity also will by on pull out test and obtain.Yet only the intensity of counter-force stake and reaction beam and size etc. are proposed some of the recommendations and requirement among China's " architecture foundation pile inspection specifications " JGJ106, do not provide the apparatus structure that carries out correlation test.Therefore, at this base form, in conjunction with the characteristics of power transmission and transformation iron tower base, it is very great to invent a kind of experimental rig meaning convenient, that be suitable for.
Summary of the invention
The utility model purpose is the device that has been to provide a kind of power transmission and transformation iron tower pile plate foundation to carry out the experiment of vertically pulling-resistant static load, and is simple in structure, easy to operate, is highly suitable for the static load resistance to plucking test on power transmission and transformation iron tower pile plate foundation and similar basis.With low cost, easy installation and removal is easy to apply.
In order to realize above-mentioned target, the utility model adopts following technical measures:
A kind of power transmission and transformation iron tower pile plate foundation carries out the device of vertically pulling-resistant static load experiment, and this device comprises reaction beam, first load buttress, the second load buttress, jack, pressure-bearing resistance to plucking steel plate, resistance to plucking steel plate, resistance to plucking bolt, resistance to plucking nut, stone bolt, anchor nut.It is characterized in that: jack places on the reaction beam, simultaneously the resistance to plucking steel plate is linked to each other with the resistance to plucking bolt by the resistance to plucking nut, connect by resistance to plucking nut, resistance to plucking bolt, stone bolt and anchor nut between pilum, pressure-bearing resistance to plucking steel plate and the resistance to plucking steel plate.Pressure-bearing resistance to plucking steel plate is provided with the connecting hole of four stone bolt and the connecting hole of four resistance to plucking bolts.Reaction beam is spliced by three i iron, the elongated screw thread that all is distributed with of resistance to plucking bolt.Characteristics according to power transmission tower base foot bolt have designed pressure-bearing resistance to plucking steel plate, four anchor (bolt) holes in the middle of wherein comprising and four resistance to plucking bolts hole all around, so just can directly steel plate be placed the pilum surface by middle four holes, as the backing plate that presses down when experiment, reached take into account press down and on pull out test, the purpose of cost saving; In resistance to plucking experiment, nut is screwed on four stone bolt that pass pressure-bearing resistance to plucking steel plate, will just realize the transmission of uplift force like this by pressure-bearing resistance to plucking steel plate through the nut of screwing on of four resistance to plucking bolts below the steel plate simultaneously; On be positioned at the jack of reaction beam, place a resistance to plucking plate, allow four resistance to plucking bolts pass its four holes corresponding on every side simultaneously with pressure-bearing resistance to plucking steel plate, twist four resistance to plucking nuts simultaneously above that, like this its top steel plate of jack pair on push away effect, finally be converted into pulling out effect on the pilum by force transfering devices such as reaction beam and resistance to plucking bolts, realized the basis on pull out experiment; Whole device connects by bolt and nut fully, and is simple in structure, installs, dismounting is all very convenient, makes the operation of whole experiment simpler.
The utility model compared with prior art has the following advantages and effect:
A kind of device that carries out the experiment of vertically pulling-resistant static load at power transmission and transformation iron tower pile plate foundation, pressure-bearing resistance to plucking steel plate can be taken into account and pull out, press down the static load experiment, save experiment fees; Whole load transfer device all is to connect by bolt and nut, rather than the welding of reinforcing bar or steel plate, only screw need be turned on the installation of next building site when next the experiment done in transition like this gets final product, need not weld the part of welding disconnected again or cut off, can save a large amount of valuable time, manpower, financial resource; The resistance to plucking bolt is elongated all to have screw thread to distribute, and is convenient to adjust according to the high flexible of platform the position of nut, has strengthened its practicality; Simple in structure, install, unloading is all very convenient, economic and practical, be easy to promote.
Description of drawings
Fig. 1 is a kind of apparatus structure schematic diagram that carries out the experiment of vertically pulling-resistant static load at power transmission and transformation iron tower pile plate foundation
Fig. 2 is the A-A sectional drawing of Fig. 1 apparatus structure
Fig. 3 is a kind of pressure-bearing resistance to plucking steel plate structure schematic diagram
Fig. 4 is a kind of resistance to plucking steel plate structure schematic diagram
Wherein: 1-reaction beam, 2A-first load buttress, 2B-second load buttress, 3-jack, 4-pressure-bearing resistance to plucking steel plate, 5-resistance to plucking steel plate, 6-resistance to plucking bolt, 7-resistance to plucking nut, 8-stone bolt, 9-anchor nut, 10-pilum, 11A-first backing plate, 11B-second backing plate, 12-steel plate washer, 13-anchor (bolt) hole, 14-resistance to plucking bolt hole.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be known, a kind of device that carries out the experiment of vertically pulling-resistant static load at power transmission and transformation iron tower pile plate foundation, this device comprise reaction beam 1, first load buttress 2A, 2B-second load buttress 2B, jack 3, pressure-bearing resistance to plucking steel plate 4, resistance to plucking steel plate 5, resistance to plucking bolt 6, resistance to plucking nut 7, stone bolt 8, anchor nut 9 compositions.It is characterized in that: jack 3 places on the reaction beam 1, simultaneously resistance to plucking steel plate 5 is linked to each other with resistance to plucking bolt 6 by resistance to plucking nut 7, connect by resistance to plucking nut 7, resistance to plucking bolt 6, stone bolt 8 and anchor nut 9 between pilum 10, pressure-bearing resistance to plucking steel plate 4 and the resistance to plucking steel plate 5.Pressure-bearing resistance to plucking steel plate 4 is provided with the connecting hole 13 of four stone bolt 8 and the connecting hole 14 of four resistance to plucking bolts 6.Reaction beam 1 is spliced by three i iron, the resistance to plucking bolt 6 elongated screw threads that all are distributed with.
Process of the test mainly is divided into following a few step:
1, with test platform place leveling, compacting on every side, satisfy first load buttress 2A, 2B-second load buttress 2B requirement to bearing capacity of foundation soil, leave enough spaces that supplies testing crew to read data simultaneously;
2, place two waddys at pilum 10 end faces, then pressure-bearing resistance to plucking steel plate 4 is placed above the waddy, make four stone bolt 9 pass four anchor (bolt) holes 13;
3, three i beams are spliced into a reaction beam 1, and its two ends are positioned on first load buttress 2A, 2B-second load buttress 2B, lay the first backing plate 11A, the second backing plate 11B in position contacting simultaneously.Then jack 3 is placed on above the reaction beam 1, guarantees that as far as possible the center of exerting oneself of jack 3 aligns with the pilum geometric center;
4, on jack, place resistance to plucking steel plate 5, make that steel plate geometric center and the jack of the mark center of exerting oneself is consistent;
5, steel plate washer 12, anchor nut 9, resistance to plucking bolt 6, resistance to plucking nut 7 are installed, resistance to plucking steel plate 5 is connected with pressure-bearing resistance to plucking steel plate 4.Guarantee after pressure-bearing resistance to plucking steel plate 4, resistance to plucking steel plate 5 levels by spirit level, with nut screwing clamping;
6, jack 3 is connected with hydraulic oil pump by high-pressure oil pipe, begins test;
7, behind the off-test complete discharge, at first resistance to plucking steel plate 5 to be taken off, dismantle other parts then successively.
Claims (4)
1. a power transmission and transformation iron tower pile plate foundation carries out the device that the vertically pulling-resistant static load is tested, it comprises reaction beam (1), first load buttress (2A), jack (3), pressure-bearing resistance to plucking steel plate (4), resistance to plucking steel plate (5), resistance to plucking bolt (6), resistance to plucking nut (7), stone bolt (8), anchor nut (9), it is characterized in that: jack (3) places on the reaction beam (1), resistance to plucking steel plate (5) links to each other with resistance to plucking bolt (6) by resistance to plucking nut (7), pilum (10), pass through resistance to plucking nut (7) between pressure-bearing resistance to plucking steel plate (4) and the resistance to plucking steel plate (5), resistance to plucking bolt (6), stone bolt (8) and anchor nut (9) connect, pressure-bearing resistance to plucking steel plate (4) is provided with the connecting hole (13) of four stone bolt (8) and the connecting hole (14) of four resistance to plucking bolts (6), reaction beam (1) is spliced by three i iron, the elongated screw thread that all is distributed with of resistance to plucking bolt (6), reaction beam (1) places first load buttress (2A), on second load buttress (2B), middle first backing plate (11A) that increases, second backing plate (11B).
2. a kind of power transmission and transformation iron tower pile plate foundation according to claim 1 carries out the device of vertically pulling-resistant static load experiment, it is characterized in that: described resistance to plucking steel plate (5) and pressure-bearing resistance to plucking steel plate (4) by about eight resistance to plucking nuts (7), four resistance to plucking bolts (6) be connected.
3. a kind of power transmission and transformation iron tower pile plate foundation according to claim 1 carries out the device of vertically pulling-resistant static load experiment, it is characterized in that: following the increasing of described resistance to plucking nut (7) has eight steel plate washers (12), links to each other by four stone bolt (8) and four anchor nuts (9) between pressure-bearing resistance to plucking steel plate (4) and the pilum (10).
4. a kind of power transmission and transformation iron tower pile plate foundation according to claim 1 carries out the device of vertically pulling-resistant static load experiment, it is characterized in that: four steel plate washers (12) are set under the described anchor nut (9) equally.
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CN2010205949513U CN201857620U (en) | 2010-11-05 | 2010-11-05 | Device for conducting vertical anti-pulling static loading experiment to pile and board foundation of electricity transmission tower |
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- 2010-11-05 CN CN2010205949513U patent/CN201857620U/en not_active Expired - Fee Related
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CN103166230A (en) * | 2011-12-14 | 2013-06-19 | 河南省电力勘测设计院 | Foundation for realizing fast interchange of capacitor bank and reactor group |
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CN107059961A (en) * | 2017-06-21 | 2017-08-18 | 浙江求是工程检测有限公司 | A kind of static load of pile foundation device |
CN109098217A (en) * | 2018-08-29 | 2018-12-28 | 天津大学 | A kind of plug stake of offshore self-elevating drilling platform influences development test device and method to neighbouring shoe |
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