CN103758161A

CN103758161A - Pressure test device and method for prestressed pipe pile through peripheral pipe pile in component force measuring mode

Info

Publication number: CN103758161A
Application number: CN201410038857.2A
Authority: CN
Inventors: 侯伯贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-30
Filing date: 2014-01-19
Publication date: 2014-04-30
Anticipated expiration: 2034-01-19
Also published as: CN103758161B

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a pressure test method for a prestressed pipe pile and a device used in the method. The device comprises one set of center clamping plates and at least two sets of component force clamping plates. Each center clamping plate comprises a center upper clamping plate body and a center lower clamping plate body, wherein the center upper clamping plate body and the center lower clamping plate body are respectively provided with at least two sets of screw through holes corresponding to one another in position. Each component force clamping plate comprises an upper component force clamping plate body and a lower component force clamping plate body, wherein the upper component force clamping plate body and the lower component force clamping plate body are respectively provided with at least two sets of screw through holes corresponding to one another in position. The center clamping plates and the component force clamping plates are connected through steel beams. The method and device have the advantages that a prestressed pipe pile around the tested prestressed pipe pile serves as a ground anchor, a high frame does not need to be erected, heavy objects for pressing are not needed, the bearing force at which the prestressed pipe pile cannot sink can be measured only through a layer of radioactive support pressure test device, the cost of using hundreds of or thousands of tons of heavy articles to carry out the pressure test is greatly saved, the accident risk that the heavy articles collapse is completely avoided, the time for measuring test pressure is greatly shortened, and construction time is saved.

Description

With periphery pile tube component, measure pressure testing device and the pressure-measuring method of pile for prestressed pipe

Technical field

The invention belongs to the pile foundation detection field of building, particularly to the pressure-measuring method of pile for prestressed pipe and device used.

Background technology

To the pressure-measuring method of pile for prestressed pipe, be all with mixed earth weight, to pile the weight that pressure testing needs on pile for prestressed pipe now, usually at one, above pile for prestressed pipe, to pile and press kiloton weight on hundreds of ton to carry out pressure testing to pile for prestressed pipe, determine the voltage endurance capability of pile for prestressed pipe.This method will be built the bearing frame in very wide row jail, and when weight is slightly uneven too heavily again, bearing frame also very easily collapses and has an accident.

Summary of the invention

The object of this invention is to provide and utilize pile for prestressed pipe that tested pile for prestressed pipe around also has or other stake as earth anchor, need not take overhead, the weight of need not exerting pressure, only with one deck radiation shape support pressure testing device, just can measure the bearing capacity pressure-measuring method that pile for prestressed pipe does not sink, and the method radiation shape pressure testing holder device used.

Structure of the present invention is:

Planar is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: comprise group switching centre clamping plate 1 and at least two component power clamping plate 2;

Center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, on center train wheel bridge 3 and center lower plate 4, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, the screw hole 5 of wearing does not on the same group become radial distribution about a central point, wears screw hole 5 for every group and has at least two to wear screw hole 5; Between center train wheel bridge 3 and center lower plate 4, there is spacing distance.If girder steel 8 use i iron, fix a girder steel 8 and want two or four to wear screw hole 5, as worn 5 two rows of screw hole with four, totally two rows, two line up and are arranged in parallel.A plurality of on center clamping plate 1 wear screw hole 5 for adapting to flexibly in construction time-division solenoid stake 11 at diverse location, with girder steel 8, tested pile for prestressed pipe 10 and component pile tube 11 are connected as a single entity.

Component clamping plate 2 comprise component train wheel bridge 6 and component lower plate 7, on component train wheel bridge 6 and component lower plate 7, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, 5 one-tenth of the screw holes of wearing are not on the same group arranged in parallel, and wear screw hole 5 for every group and have at least two to wear screw hole 5; Between component train wheel bridge 6 and component lower plate 7, there is spacing distance; On component lower plate 7, be also provided with the hole 9 that connects component stake.If girder steel 8 use i iron, fix a girder steel 8 and want two or four to wear screw hole 5, as worn 5 two rows of screw hole with four, totally two rows, two line up and are arranged in parallel.

Between center clamping plate 1 and component clamping plate 2, with girder steel 8, be connected, one end of girder steel 8 is among the interval between the center of center clamping plate 1 train wheel bridge 3 and center lower plate 4, and Bing Bei center train wheel bridge 3 adds nut compressing with the screw hole 5 of wearing that lower plate 4 use screw rods in center pass two clamping plate; The other end of girder steel 8, among the component train wheel bridge 6 and the interval between component lower plate 7 of component clamping plate 2, and is added nut compressing by component train wheel bridge 6 and component lower plate 7 use screw rods through the screw hole 5 of wearing of two clamping plate;

Two component power clamping plate 2 or multicomponent power clamping plate 2 and the girder steel 8 that is connected center clamping plate 1 become radial distribution centered by center clamping plate 1.

Planar is measured the pressure-measuring method of pile for prestressed pipe with periphery pile tube component, it is characterized in that: during the bearing capacity that do not sink in the pile for prestressed pipe load of measuring building foundation, the component pile tube 11 of using as auxiliary measuring with tested pile for prestressed pipe 10 survey pile for prestressed pipe around, component pile tube 11 is at least 2, and its bearing capacity determination step that tested pile for prestressed pipe 10 is not sunk is as follows:

[1] at the overlapping placement jack of end face and the displacement record instrument 12 of tested pile for prestressed pipe 10.

[2] at the end face of jack and displacement record instrument 12, place center clamping plate 1: the center lower plate 4 of center clamping plate 1 is contacted with displacement record instrument 12 with jack, jack and displacement record instrument 12 are clipped between center clamping plate 1 and tested pile for prestressed pipe 10, the center train wheel bridge 3 of center clamping plate 1 upwards, has spacing distance between center train wheel bridge 3 and center lower plate 4; The structure of center clamping plate 1 is: center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, on center train wheel bridge 3 and center lower plate 4, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, the screw hole 5 of wearing does not on the same group become radial distribution about a central point, wears screw hole 5 for every group and has at least two to wear screw hole 5.When measuring the bearing capacity that pile for prestressed pipe specified load do not sink, the effect of center clamping plate 1 is the power upwards pushing away of bearing, the power that Ji Ba center clamping plate 1 and tested pile for prestressed pipe 10 are separated.

[3] selected component pile tube 11: select from nearest at least two pile for prestressed pipe of tested pile for prestressed pipe 10 as component pile tube 11, the bearing capacity that tested pile for prestressed pipe 10 does not sink is F, any one component pile tube 11 does not have any component pile tube 11 moving up while upwards being pulled up be f to uplift force, the quantity of component pile tube 11 is n, essential satisfied: f1+f2+f3 ... + fn>F, and F/n<f.General tested pile for prestressed pipe 10 component pile tube 11 its prestressing force are around basic identical, so generally can meet this two conditions.In general, a tested pile for prestressed pipe 10 preferably selects 4 or 6,8,10 or 12 component pile tubes 11 around, and 11 one-tenth radial being distributed in around tested pile for prestressed pipe 10 of these component pile tubes.

[4] end face at component pile tube 11 connects component clamping plate 2: with protruding from the hole 9 of the vertical load-bearing main reinforcement 13 of component pile tube 11 end faces through the connection component stake on the component lower plate 7 of component clamping plate 2, the 13 use welding of vertical load-bearing main reinforcement or nut through connecting the hole 9 of component stake are fixedly connected with both; By component lower plate 7, the end face of component pile tube 11 is fixedly connected with to component clamping plate 2; The structure of component clamping plate 2 is: component clamping plate 2 comprise component train wheel bridge 6 and component lower plate 7, on component train wheel bridge 6 and component lower plate 7, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, 5 one-tenth of the screw holes of wearing are not on the same group arranged in parallel, and wear screw hole 5 for every group and have at least two to wear screw hole 5; Between component train wheel bridge 6 and component lower plate 7, there is spacing distance; On component lower plate 7, be also provided with the hole 9 that connects component stake.Because component pile tube 11 is the power of upwards pulling out of bearing, so, component pile tube 11 and component clamping plate 2 be linked into an integrated entity, when measuring, component clamping plate 2 can pass to component pile tube 11 the power of upwards pulling out.

[5] with girder steel 8, tested pile for prestressed pipe 10 is connected with component pile tube 11: one end of girder steel 8 is positioned among the center train wheel bridge 3 and the interval between center lower plate 4 of center clamping plate 1, the screw rod on Bing Yong center train wheel bridge 3 and center lower plate 4 adds nut compressing and links into an integrated entity through the screw hole 5 of wearing of these two clamping plate; The other end of girder steel 8 is positioned among the component train wheel bridge 6 and the interval between component lower plate 7 of component clamping plate 2, and the screw hole 5 of wearing through these two clamping plate adds nut compressing and links into an integrated entity with the screw rod on component train wheel bridge 6 and component lower plate 7; Like this, every girder steel 8 is fixedly connected with the some of center clamping plate 1 with component clamping plate 2, each component pile tube 11 component clamping plate 2 above, by girder steel 8 and center clamping plate 1, are all integral two or more component pile tubes 11 with tested pile for prestressed pipe 10 stressed joints.With girder steel 8 Jiang Yige center clamping plate 1 and a plurality of component clamping plate 2, connect into the pressure testing device of radial structure.

[6] measure the bearing capacity not sinking of tested pile for prestressed pipe 10: by being clipped in center clamping plate 1, be connected with jack pressure recorder 15 with displacement record instrument 12 with the jack between tested pile for prestressed pipe 10, and energising starts to record pressure; Start the jack in jack and displacement record instrument 12, observe tested pile for prestressed pipe 10 and have or not sinking bearing in the regulation bearing capacity time, or whether sinking size is in prescribed limit.During measurement, jack upwards pushes up center clamping plate 1, and center clamping plate 1 are connected component pile tube 11 by girder steel 8, component clamping plate 2, thereby center clamping plate 1 bear the power of upwards pushing up and do not move, tested pile for prestressed pipe 10 just bears downward pressure, the bearing capacity value of this force value for not sinking.

Three-dimensional triangle posture is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: comprise the radial three-dimensional of a plurality of triangular framings, each triangular framing comprises that a standpipe 17, a diagonal member 18 are connected and form with a horizontal drawing bar 19; A plurality of triangular framings post centered by standpipe 17 becomes radial three-dimensional; A plurality of horizontal drawing bars 19 in a plurality of triangular framings are the radial fabricated structures in isoplanar that are connected as a single entity, above a plurality of horizontal drawing bars 19 radial structure centers, connect a standpipe 17, the upper end of many diagonal members 18 is all connected with a unique standpipe 17, and the lower end of many diagonal members 18 is connected with the horizontal drawing bar 19 of diverse location respectively;

[1] horizontal drawing bar 19 fabricated structures:

Horizontal drawing bar 19 comprises center clamping plate 1, component clamping plate 2, with the girder steel 8 that is connected center clamping plate 1 and component clamping plate 2;

Horizontal drawing Gan19 center clamping plate 1 structure: center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, has spacing distance between center train wheel bridge 3 and center lower plate 4; Between center train wheel bridge 3 and center lower plate 4, with many support columns 16, connect; The center of center train wheel bridge 3 is provided with train wheel bridge hole, Yi Ge center, and center lower plate 4 is provided with the next big nut 20 towards the correspondence position in train wheel bridge hole, center; The next big nut 20 can be located positioning screw 21, makes not swinging of positioning screw 21 below; The next big nut 20 also increases office's cloth thickness of center lower plate 4.A positioning screw 21 connects through the next big nut 20 of train wheel bridge Kong Yu center, center lower plate 4; The next big nut 20 effects are the thickness at lower plate 4 centers, increase center, thereby increase the intensity of center lower plate 4.Make positioning screw 21 below with center lower plate 4 close contacts; Placing restrictions on positioning screw 21 swings.The next big nut 20 pitch of center lower plate 4 are greater than the pitch at connected positioning screw 21 positions; Center train wheel bridge 3 is stressed while having micro-strain, make positioning screw 21 still close contact to center lower plate 4 or the next big nut 20 below.Being connected with positioning screw 21 above of a upper big nut 22 center train wheel bridge 3, upper big nut 22 is stretched out in the upper end of positioning screw 21, and the upper end of positioning screw 21 has certain length to protrude on upper big nut 22; Positioning screw 21 upper ends have certain length to extend among standpipe 17 interior sky below, are closely nested or screw connection; Being enclosed within the standpipe 17 that the positioning screw 21 among the interior sky of standpipe 17 can stablize when mounted does not fall down.The external diameter of upper big nut 22 is greater than the external diameter of standpipe 17.Make first to accept in upper big nut 22 downforce of standpipe 17, the upper big nut 22 again downward pressure of handle riser 17 disperses, make center train wheel bridge 3 not fragile, reach positioning screw 21 and Duo Gen support column 16 all even equal balance to the pressure of center lower plate 4 conduction standpipes 17.The next big nut 20 is for the protection of center lower plate 4, and upper big nut 22, for the protection of center train wheel bridge 3, is located standpipe 17 and stable standpipe 17 when positioning screw 21 is installed standpipe 17 for convenience.

Component clamping plate 2 structures of horizontal drawing bar 19: component clamping plate 2 comprise component train wheel bridge 6 and component lower plate 7, on component train wheel bridge 6 and component lower plate 7, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, 5 one-tenth of the screw holes of wearing are not on the same group arranged in parallel, and wear screw hole 5 for every group and have at least two to wear screw hole 5; Between component train wheel bridge 6 and component lower plate 7, there is spacing distance; On component lower plate 7, be also provided with the hole 9 that connects component stake;

Girder steel 8 structures of horizontal drawing bar 19: girder steel 8 one end are band clamping plate end, and the other end is not for being with clamping plate end; Girder steel 8 with the structure of clamping plate end is: the both sides of girder steel 8 terminations are fixed with respectively 23, two girder steel clamping plate 23 of girder steel clamping plate and all on girder steel 8, stretch out respectively a short column 24 connections for part that 8, two girder steel clamping plate 23 of girder steel stretch out girder steel 8.This short column 24 is for being rotationally connected with diagonal member 18.

A plurality of horizontal drawing bar 19 radial combination structures in isoplanar: the surrounding of a plurality of component clamping plate 2 Yi Ge center clamping plate 1 respectively portion connects into the radial combination structure in isoplanar with girder steel 8; Many girder steels 8 have one end respectively at center clamping plate 1 different parts, are inserted among the interval between center train wheel bridge 3 and center lower plate 4, and the other end of many girder steels 8 is connected with girder steel clamping plate 23; Center clamping plate 1 and girder steel clamping plate 23 girder steel 8 parts through the component train wheel bridge 6 of component clamping plate 2 and the clearance space between component lower plate 7; Centered by center clamping plate 1, many girder steels 8 and the passed radial distribution in 2 one-tenth isoplanars of component clamping plate, the outermost end position in this radial distribution with girder steel clamping plate 23 of girder steel 8; Make radial distributed architecture outermost end position, this isoplanar have girder steel clamping plate 23.Make the girder steel clamping plate 23 of girder steel 8 be convenient to be connected with diagonal member 18, the component structure that girder steel clamping plate 23 are more suitable for scattering one's forces away from center clamping plate 1 as far as possible.Center clamping plate 1 are for bearing the strength of test foundation pile, and a plurality of component clamping plate 2, for being connected with component pile tube, are distributed to a plurality of component pile tubes the strength of examination foundation pile and disperse to bear strength.Girder steel 8 is for connecting center clamping plate 1 and a plurality of component clamping plate 2, and transmits strength, and girder steel 8 is for horizontal drawing bar 19 is connected with diagonal member 18, and transmits strength.

[2] structure of standpipe 17: be fixed with a bearing 25 among approaching the interior sky of standpipe 17 upper ends, in the inner ring of bearing 25, be provided with a "T"-shaped bar 26, the transverse slat 27 of "T"-shaped bar 26 is positioned at below bearing 25, the central post 28 of "T"-shaped bar 26 is through the inner ring hole of bearing 25, the top of central post 28 is positioned at the top end opening position that approaches standpipe 17, and there is topped hole 29 on the top of central post 28.The topped hole 29 of "T"-shaped bar 26, for being connected with the lifting rope of crane, makes crane when slinging standpipe 17, guarantees the positioning screw 21 on standpipe 17 vertical Yu center clamping plate 1, thereby in the pressure testing process guaranteeing, 17 pairs of the standpipes pressure by peg is vertical.Although 26, bearing 25 and "T"-shaped bar are useful when standpipe 17 is installed, and in test process need not, it is correct that bearing 25 and "T"-shaped bar 26 can make to install, accidents happened to guarantee test process, and test data is correct.

[3] structure of top cover 30: the thick cover plate 32 that comprises a short sleeve 31 and sealing short sleeve 31 upper end open, thick cover plate 32 is greater than the cross section of short sleeve 31, short sleeve 31 outsides are radial is fixedly connected with a plurality of layback plates 33, each layback plate 33 is also fixedly connected with thick cover plate 32, and each layback plate 33 is provided with layback plate hole 34; Thick cover plate 32 covers the top at standpipe 17.Layback plate 33 is connected object with thick cover plate 32 with short sleeve 31 respectively, at layback plate 33, accepting under the shape of oblique pulling, the pulling force that thick cover plate 32 obtains downward vertically, short sleeve 31 obtains parallel pressure, but short sleeve 31 is the radial layback plate 33 that is distributed with around, parallel pressure is eliminated and standpipe 17 can not be swung, and keeps its plumbness.

[4] structure of diagonal member 18: comprise upper connecting rod 35 and lower link 36, connect between upper connecting rod 35 and lower link 36 with a shaped as frame connector 37, the relative both sides of shaped as frame connector 37 are connected with the threaded one end of lower link 36 with one end of upper connecting rod 35 respectively; The relative both sides of shaped as frame connector 37 hand of spiral being connected with lower link 36 with upper connecting rod 35 is contrary; The other end of upper connecting rod 35 is connected with a female clip 38.While making to rotate shaped as frame connector 37, to upper connecting rod 35 and lower link 36, be to strain simultaneously, or extend simultaneously.

[5] structure of triangular framing: triangular framing comprises the combining structure of standpipe 17, top cover 30, the peaceful pull bar 19 of diagonal member 18; Between two girder steel clamping plate 23 of girder steel 8 terminations of horizontal drawing bar 19, short column 24 connects, and this short column 24 is rotationally connected with lower link 36 lower ends of diagonal member 18, and lower link 36 upper ends are connected with shaped as frame connector 37; The female clip 38 of upper connecting rod 35 upper ends of diagonal member 18 is rotationally connected with the mode that the thick cover plate 32 use tips of top cover 30 connect; The short sleeve 31 of top cover 30 is enclosed within standpipe 17 upper ends; The lower end of standpipe 17 is enclosed within the mode that the outside of horizontal drawing Gan19 center clamping plate 1 positioning screw 21 is above nested and connects, the big nut 22 of the lower end contact center clamping plate 1 of standpipe 17.The upper end of diagonal member 18 and top cover 30 are rotationally connected, and the lower end of diagonal member 18 and horizontal drawing bar 19 are rotationally connected, and these two effects that are rotationally connected are to bear triangular framing in the micro-strain of stress, can not damage by triangular framing when stress deformation.Triangular framing effect be: measuring by the strength transmission of peg and disperseing to by peg component stake around, and to make the power of upwards pulling power stake be power straight up, can not break component stake like this.And diagonal member in the triangular framing of prior art directly connects component stake, oblique power pulling power stake for diagonal member, is easy to break component stake.It is the most important technique effect of the present invention that the present invention does not damage component stake in use.

[6] the radial three-dimensional of a plurality of triangular framings: many horizontal drawing bar 19 fabricated structures are the radial structures of plane, the positioning screw 21 at many horizontal drawing bar 19 fabricated structure centers is connected with the mode of being nested below of standpipe 17 above, on standpipe 17, surface cover has top cover 30, short column 24 on the girder steel clamping plate 23 of each horizontal drawing bar 19 is rotationally connected with the lower end of diagonal member 18, standpipe 17 top cover 30 layback plates 33 are above rotationally connected with the upper end female clip 38 of diagonal member 18, form the radial three-dimensional of a plurality of triangular framings.

Below the center of center clamping plate 1 lower plate 4, be provided with rotatable wheel 39, and below girder steel 8 or girder steel clamping plate 23, be provided with rotatable wheel 39." Three-dimensional triangle posture of the present invention is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component " is the package assembly that can discharge, and is convenient to move away from the transportation in building site.But in same building site, preferably do not discharge and whole from a peg point, be transported to another peg point.Rotatable wheel 39 is exactly the functional part of the whole carrying for not discharging in same building site.The advantage of carrying out whole carrying in same building site is to have reduced discharging and reinstalling, saving manpower, time and expense this pressure testing device.

Rotatable wheel 39 is concave panel wheel preferably.Concave panel wheel can be stuck on i iron exactly, can block in orbit the wheel of orbital motion.Because measuring the building site of pile for prestressed pipe is all mud ground, the ground, building site that out-of-flatness again can not load-bearing, particularly rain more can not load-bearing.While wanting whole carrying pressure testing device of the present invention in same building site, first on ground, put track or i iron well, the rotatable wheel 39 of concave panel below this pressure testing device is blocked in orbit, in same building site, want so whole carrying pressure testing device just very fast, very convenient, also can not damage the structure of pressure testing device, carrying puts in place and just carries out immediately the test job of a new stake.Can also below near rotatable center lower plate 4 of taking turns 39 and below girder steel 8 or girder steel clamping plate 23, establish jack, not only facilitate the rotatable wheel 39 of concave panel is lifted to card in orbit, also convenient whole pressure testing device of the present invention is lifted after, below the center of center clamping plate 1 lower plate 4, place jack pressure recorder 15.

With above-mentioned Three-dimensional triangle posture periphery pile tube component, measure the pressure testing device of pile for prestressed pipe, by tested pile tube component pile tube around, method to tested pile tube pressure testing, by Three-dimensional triangle posture, with periphery pile tube component, measure the pressure-measuring method of pile for prestressed pipe, it is characterized in that: during the bearing capacity that do not sink in the pile for prestressed pipe load of measuring building foundation, the component pile tube 11 of using as auxiliary measuring with tested pile for prestressed pipe 10 survey pile for prestressed pipe around, component pile tube 11 is at least 2, its bearing capacity determination step that tested pile for prestressed pipe 10 is not sunk is as follows:

[2] at the end face of jack and displacement record instrument 12, place center clamping plate 1: the center lower plate 4 of center clamping plate 1 is contacted with displacement record instrument 12 with jack, jack and displacement record instrument 12 are clipped between center clamping plate 1 and tested pile for prestressed pipe 10, the center train wheel bridge 3 of center clamping plate 1 upwards, has spacing distance between center train wheel bridge 3 and center lower plate 4.The structure of center clamping plate 1 is: center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, on center train wheel bridge 3 and center lower plate 4, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, the screw hole 5 of wearing does not on the same group become radial distribution about a central point, wears screw hole 5 for every group and has at least two to wear screw hole 5.Or directly with many support columns 16, be welded and fixed connection between center train wheel bridge 3 and center lower plate 4.

[3] selected component pile tube 11: select from nearest at least two pile for prestressed pipe of tested pile for prestressed pipe 10 as component pile tube 11, the bearing capacity that tested pile for prestressed pipe 10 does not sink is F, when any one component pile tube 11 is upwards pulled up, do not have that any what move up is f to uplift force, the quantity of component pile tube 11 is n, essential satisfied: f1+f2+f3 ... + fn>F, and F/n<f.

[4] end face at component pile tube 11 connects component clamping plate 2: with protruding from the hole 9 of the vertical load-bearing main reinforcement 13 of the own end face of component pile tube 11 through the connection component stake on the component lower plate 7 of component clamping plate 2, the 13 use welding of vertical load-bearing main reinforcement or nut through connecting the hole 9 of component stake are fixedly connected with both; By component lower plate 7, the end face of component pile tube 11 is fixedly connected with to component clamping plate 2.The structure of component clamping plate 2 is: component clamping plate 2 comprise component train wheel bridge 6 and component lower plate 7, on component train wheel bridge 6 and component lower plate 7, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, 5 one-tenth of the screw holes of wearing are not on the same group arranged in parallel, and wear screw hole 5 for every group and have at least two to wear screw hole 5; Between component train wheel bridge 6 and component lower plate 7, there is spacing distance; On component lower plate 7, be also provided with the hole 9 that connects component stake.

[5] with girder steel 8, tested pile for prestressed pipe 10 is connected with component pile tube 11: one end of girder steel 8 is positioned among the center train wheel bridge 3 and the interval between center lower plate 4 of center clamping plate 1, the screw rod on Bing Yong center train wheel bridge 3 and center lower plate 4 adds nut compressing and links into an integrated entity through the screw hole 5 of wearing of these two clamping plate; Another of girder steel 8 is partly positioned among the component train wheel bridge 6 and the interval between component lower plate 7 of component clamping plate 2, and the screw hole 5 of wearing through these two clamping plate adds nut compressing and links into an integrated entity with the screw rod on component train wheel bridge 6 and component lower plate 7; Like this, every girder steel 8 is fixedly connected with the some of center clamping plate 1 with component clamping plate 2, each component pile tube 11 component clamping plate 2 above, by girder steel 8 and center clamping plate 1, are all integral two or more component pile tubes 11 with tested pile for prestressed pipe 10 stressed joints.

[6] whole pressure testing device is installed: by pressure testing device structure claimed in claim 3, standpipe 17, top cover 30, peaceful pull bar 19 combinations of diagonal member 18 are mounted to whole Three-dimensional triangle posture and with periphery pile tube component, measure the pressure testing device of pile for prestressed pipe.

[7] measure the bearing capacity not sinking of tested pile for prestressed pipe 10: by being clipped in center clamping plate 1, be connected with jack pressure recorder 15 with displacement record instrument 12 with the jack between tested pile for prestressed pipe 10, and energising starts to record pressure; Energising starts the jack in jack and displacement record instrument 12 again, observe tested pile for prestressed pipe 10 and have or not sinking bearing in the regulation bearing capacity time, or whether sinking size is in prescribed limit.

Advantage of the present invention:

Planar is measured the advantage of the pressure testing device of pile for prestressed pipe with periphery pile tube component: utilize the pile for prestressed pipe also having around tested pile for prestressed pipe as earth anchor, need not take tens tons of goods carriages of using to hundreds of ton weight that bearing test uses, the weight that need not exert pressure, only with one deck radiation shape support pressure testing device, just can measure the bearing capacity that pile for prestressed pipe does not sink, greatly saved with kiloton weight pressure testing cost on hundreds of ton, the accident risk of having avoided weight to collapse completely, and the time of measuring pressure testing power shortens greatly, saved the engineering time.Each parts portion of pressure testing device of the present invention can discharge, adapt between different building sites and carry pressure testing device, and when different if any position between the pile tube of same building site diverse location, also can discharge after own pressure testing device, ressemble this and put pressure testing device, to meet the different test problem in position between pile tube.Because the bearing capacity not sinking of pile for prestressed pipe is all in the rotten building site of mud, so can discharge, alleviate inseparable component weight, convenient carrying is very important.

Except above-mentioned advantage, Three-dimensional triangle posture also has advantages of with the pressure testing device that periphery pile tube component is measured pile for prestressed pipe:

1, the "T"-shaped bar 26 among the interior sky of standpipe 17, can make crane when slinging standpipe 17 with the crane standpipe 17 of slinging while making standpipe 17 is installed, and guarantees that standpipe 17 is vertical, guarantees that test data is correct, adds that positioning screw 21 makes to install more convenient.

2, upper big nut 22 and the next big nut 20 have increased the intensity of center clamping plate 1, save the Master Cost of using of center clamping plate 1.

3, the isolating construction of top cover 30 and standpipe 17, improves the stress-bearing capability on standpipe 17 tops, makes this Three-dimensional triangle posture pressure testing device can measure the foundation pile of larger strength.

4, diagonal member 18 disperses the stressed to girder steel 8 of standpipe 17, makes this Three-dimensional triangle posture pressure testing device can measure the foundation pile of larger strength.

5, on the girder steel of the face of component clamping plate 2 centre clamping plate and girder steel clamping plate, with center clamping plate and girder steel clamping plate vertical upwards the drawing and lifting of component clamping plate, drawing and lifting strength and can not break the component stake that component clamping plate connect below straight up.And diagonal member in the triangular framing of prior art directly connects component stake, oblique power pulling power stake for diagonal member, is easy to break component stake.It is the most important technique effect of the present invention that the present invention does not damage component stake in use.

6, rotatably take turns the functional part of the 39 whole carryings for not discharging in same building site.The advantage of carrying out whole carrying in same building site is to have reduced discharging and reinstalling, saving manpower, time and expense this pressure testing device.

Accompanying drawing explanation

Fig. 1 is that planar is measured the structural representation of the pressure testing device of pile for prestressed pipe with periphery pile tube component;

Fig. 2 is the structural representation of upwards observing from ground of the pressure testing device of periphery pile tube component measurement pile for prestressed pipe;

Fig. 3 is the structural representation that Three-dimensional triangle posture periphery pile tube component is measured the pressure testing device of pile for prestressed pipe.

In figure, 1 is center clamping plate, the 2nd, component clamping plate, the 3rd, center train wheel bridge, the 4th, center lower plate, the 5th, wear screw hole, the 6th, component train wheel bridge, the 7th, component lower plate, the 8th, girder steel, the 9th, the hole of connection component stake, the 10th, tested pile for prestressed pipe, the 11st, component pile tube, the 12nd, jack and displacement record instrument, the 13rd, vertical load-bearing main reinforcement, the 14th, with the screw rod of nut, the 15th, jack pressure recorder, the 16th, support column, the 17th, standpipe, the 18th, diagonal member, the 19th, horizontal drawing bar, the 20th, the next big nut, the 21st, positioning screw, the 22nd, upper big nut, the 23rd, girder steel clamping plate, the 24th, short column, the 25th, bearing, the 26th, "T"-shaped bar, the 27th, transverse slat, the 28th, central post, the 29th, topped hole, the 30th, top cover, the 31st, short sleeve, the 32nd, thick cover plate, the 33rd, layback plate, the 34th, layback plate hole, the 35th, upper connecting rod, 36 lower links, the 37th, shaped as frame connector, the 38th, female clip, the 39th, rotatable wheel.

The specific embodiment

Embodiment 1, planar are measured pressure testing device and the pressure-measuring method of pile for prestressed pipe with periphery pile tube component

As Fig. 1,2, with periphery pile tube component, measure the pressure testing device of pile for prestressed pipe, comprise group switching centre clamping plate 1 and at least two component power clamping plate 2;

Center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, on center train wheel bridge 3 and center lower plate 4, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, the screw hole 5 of wearing does not on the same group become radial distribution about a central point, wears screw hole 5 for every group and has at least two to wear screw hole 5; Between center train wheel bridge 3 and center lower plate 4, there is spacing distance.Girder steel 8 use i iron, fix a girder steel 8 and want four to wear 5, two one rows of screw hole, totally two rows, and two line up and are arranged in parallel.A plurality of on center clamping plate 1 wear screw hole 5 for adapting to flexibly in construction time-division solenoid stake 11 at diverse location, with girder steel 8, tested pile for prestressed pipe 10 and component pile tube 11 are connected as a single entity.

Component clamping plate 2 comprise component train wheel bridge 6 and component lower plate 7, on component train wheel bridge 6 and component lower plate 7, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, 5 one-tenth of the screw holes of wearing are not on the same group arranged in parallel, and wear screw hole 5 for every group and have at least two to wear screw hole 5; Between component train wheel bridge 6 and component lower plate 7, there is spacing distance; On component lower plate 7, be also provided with the hole 9 that connects component stake.Girder steel 8 use i iron, fix a girder steel 8 and want four to wear 5, two one rows of screw hole, totally two rows, and two line up and are arranged in parallel.

Two component power clamping plate 2 or multicomponent power clamping plate 2 become radial distribution centered by center clamping plate 1.

With the bearing capacity that the above-mentioned pressure testing device with periphery pile tube component measurement pile for prestressed pipe does not sink to tested pile for prestressed pipe 10, measure pressure-measuring method, in the pile for prestressed pipe load of measuring building foundation, do not sink bearing capacity time, the component pile tube 11 of using as auxiliary measuring with tested pre-vertical solenoid stake 10 survey pile for prestressed pipe around, component pile tube 11 is at least 2, and its bearing capacity determination step that tested pile for prestressed pipe 10 is not sunk is as follows:

[1] at the overlapping placement jack of end face and the displacement record instrument 12 of tested pile for prestressed pipe 10.Displacement record instrument be placed on jack below, also can jack be placed on displacement record instrument below.

[2] at the end face of jack and displacement record instrument 12, place center clamping plate 1: the center lower plate 4 of center clamping plate 1 is contacted with the jack of displacement record instrument 12 with jack, jack and displacement record instrument 12 are clipped between center clamping plate 1 and tested pile for prestressed pipe 10, the center train wheel bridge 3 of center clamping plate 1 upwards, has spacing distance between center train wheel bridge 3 and center lower plate 4; The structure of center clamping plate 1 is: center clamping plate 1 comprise center train wheel bridge 3 and center lower plate 4, on center train wheel bridge 3 and center lower plate 4, be arranged with at least two group positions corresponding wear screw hole 5, wearing in screw hole 5 that position is corresponding connects with the screw rod 14 with nut, the screw hole 5 of wearing does not on the same group become radial distribution about a central point, wears screw hole 5 for every group and has at least two to wear screw hole 5.When measuring the bearing capacity that pile for prestressed pipe specified load do not sink, the effect of center clamping plate 1 is the power upwards pushing away of bearing, the power that Ji Ba center clamping plate 1 and tested pile for prestressed pipe 10 are separated.

[3] selected component pile tube 11: select from nearest at least two pile for prestressed pipe of tested pile for prestressed pipe 10 as component pile tube 11, it is that the bearing capacity not sinking is 400 tons that tested pile for prestressed pipe 10 requires, any one component pile tube 11 does not have any component pile tube 11 moving up while upwards being pulled up be 300 tons to uplift force, the quantity of component pile tube 11 is 8, meet: 300 tons * 8=2400 tons >400 tons, also meet 400 tons/8=50 ton <300 ton.Tested pile for prestressed pipe 10 selects 8 component pile tubes 11 around, and 11 one-tenth radial being distributed in around tested pile for prestressed pipe 10 of these component pile tubes.

[6] measure the bearing capacity not sinking of tested pile for prestressed pipe 10: by being clipped in center clamping plate 1, be connected with jack pressure recorder 15 with displacement record instrument 12 with the jack between tested pile for prestressed pipe 10, and energising starts to record the pressure of jack; Start jack in jack and displacement record instrument 12 reach 400 tons 24 hours to 30 hours, observes tested pile for prestressed pipe 10 and have or not sinking bearing in the regulation bearing capacity time, or whether sinking size in prescribed limit.During measurement, jack upwards pushes up center clamping plate 1, and center clamping plate 1 are connected component pile tube 11 by girder steel 8, component clamping plate 2, thereby center clamping plate 1 bear the power of upwards pushing up and do not move, tested pile for prestressed pipe 10 just bears downward pressure, the bearing capacity value of this force value for not sinking.

Embodiment 1, Three-dimensional triangle posture are measured pressure testing device and the pressure-measuring method of pile for prestressed pipe with periphery pile tube component

As Fig. 2,3,

One, Three-dimensional triangle posture is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, the radial three-dimensional that comprises a plurality of triangular framings, each triangular framing comprises that a standpipe 17, a diagonal member 18 are connected and form with a horizontal drawing bar 19; A plurality of triangular framings post centered by standpipe 17 becomes radial three-dimensional; A plurality of horizontal drawing bars 19 in a plurality of triangular framings are the radial fabricated structures in isoplanar that are connected as a single entity, above a plurality of horizontal drawing bars 19 radial structure centers, connect a standpipe 17, the upper end of many diagonal members 18 is all connected with a unique standpipe 17, and the lower end of many diagonal members 18 is connected with the horizontal drawing bar 19 of diverse location respectively;

[1] horizontal drawing bar 19 fabricated structures:

Two, with above-mentioned Three-dimensional triangle posture periphery pile tube component, measure the pressure testing device of pile for prestressed pipe, by tested pile tube component pile tube around, method to tested pile tube pressure testing, measures the pressure-measuring method of pile for prestressed pipe with periphery pile tube component by Three-dimensional triangle posture.In the pile for prestressed pipe load of measuring building foundation, do not sink bearing capacity time, the component pile tube 11 of using as auxiliary measuring with tested pile for prestressed pipe 10 survey pile for prestressed pipe around, component pile tube 11 is at least 2, and its bearing capacity determination step that tested pile for prestressed pipe 10 is not sunk is as follows:

Claims

1. planar is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: comprise group switching centre clamping plate (1) and at least two component power clamping plate (2);

Center clamping plate (1) comprise center train wheel bridge (3) and center lower plate (4), on center train wheel bridge (3) and center lower plate (4), be arranged with at least two group positions corresponding wear screw hole (5), wearing in screw hole (5) that position is corresponding connects with the screw rod (14) with nut, the screw hole (5) of wearing does not on the same group become radial distribution about a central point, wears screw hole (5) for every group and has at least two to wear screw hole (5); Between center train wheel bridge (3) and center lower plate (4), there is spacing distance;

Component clamping plate (2) comprise component train wheel bridge (6) and component lower plate (7), on component train wheel bridge (6) and component lower plate (7), be arranged with at least two group positions corresponding wear screw hole (5), wearing in screw hole (5) that position is corresponding connects with the screw rod (14) with nut, the screw hole (5) of wearing does not on the same group become to be arranged in parallel, and wears screw hole (5) for every group and has at least two to wear screw hole (5); Between component train wheel bridge (6) and component lower plate (7), there is spacing distance; On component lower plate (7), be also provided with the hole (9) that connects component stake;

Between center clamping plate (1) and component clamping plate (2), with girder steel (8), be connected, one end of girder steel (8) is positioned among the center train wheel bridge (3) and the interval between center lower plate (4) of center clamping plate (1); The other end of girder steel (8) is positioned among the component train wheel bridge (6) and the interval between component lower plate (7) of component clamping plate (2);

Two component power clamping plate (2) or multicomponent power clamping plate (2) and the girder steel (8) that is connected center clamping plate (1) become radial distribution centered by center clamping plate (1).

2. planar according to claim 1 is measured the pressure-measuring method of pile for prestressed pipe with periphery pile tube component, it is characterized in that: during the bearing capacity that do not sink in the pile for prestressed pipe load of measuring building foundation, the component pile tube (11) of using as auxiliary measuring with tested pile for prestressed pipe (10) survey pile for prestressed pipe around, component pile tube (11) is at least 2, and its bearing capacity determination step that tested pile for prestressed pipe (10) is not sunk is as follows:

[1] at the overlapping placement jack of end face and the displacement record instrument (12) of tested pile for prestressed pipe (10);

[2] at the end face of jack and displacement record instrument (12), place center clamping plate (1): the center lower plate (4) of center clamping plate (1) is contacted with displacement record instrument (12) with jack, jack and displacement record instrument (12) are clipped between center clamping plate (1) and tested pile for prestressed pipe (10), the center train wheel bridge (3) of center clamping plate (1) upwards, has spacing distance between center train wheel bridge (3) and center lower plate (4); The structure of center clamping plate (1) is: center clamping plate (1) comprise center train wheel bridge (3) and center lower plate (4), on center train wheel bridge (3) and center lower plate (4), be arranged with at least two group positions corresponding wear screw hole (5), wearing in screw hole (5) that position is corresponding connects with the screw rod (14) with nut, the screw hole (5) of wearing does not on the same group become radial distribution about a central point, wears screw hole (5) for every group and has at least two to wear screw hole (5);

[3] selected component pile tube (11): select from nearest at least two pile for prestressed pipe of tested pile for prestressed pipe (10) as component pile tube (11), the bearing capacity that tested pile for prestressed pipe (10) does not sink is F, any one component pile tube (11) does not have any component pile tube (11) moving up while upwards being pulled up be f to uplift force, the quantity of component pile tube (11) is n, essential satisfied: f1+f2+f3 ... + fn>F, and F/n<f;

[4] end face at component pile tube (11) connects component clamping plate (2): with protruding from the hole (9) of the vertical load-bearing main reinforcement (13) of component pile tube (11) end face through the connection component stake on the component lower plate (7) of component clamping plate (2), the vertical load-bearing main reinforcement (13) through connecting the hole (9) of component stake is fixedly connected with both with welding or nut; By component lower plate (7), the end face of component pile tube (11) is fixedly connected with to component clamping plate (2); The structure of component clamping plate (2) is: component clamping plate (2) comprise component train wheel bridge (6) and component lower plate (7), on component train wheel bridge (6) and component lower plate (7), be arranged with at least two group positions corresponding wear screw hole (5), wearing in screw hole (5) that position is corresponding connects with the screw rod (14) with nut, the screw hole (5) of wearing does not on the same group become to be arranged in parallel, and wears screw hole (5) for every group and has at least two to wear screw hole (5); Between component train wheel bridge (6) and component lower plate (7), there is spacing distance; On component lower plate (7), be also provided with the hole (9) that connects component stake;

[5] with girder steel (8), tested pile for prestressed pipe (10) is connected with component pile tube (11): one end of girder steel (8) is positioned among the center train wheel bridge (3) and the interval between center lower plate (4) of center clamping plate (1), the screw rod on Bing Yong center train wheel bridge (3) and center lower plate (4) adds nut compressing and links into an integrated entity through the screw hole (5) of wearing of these two clamping plate; The other end of girder steel (8) is positioned among the component train wheel bridge (6) and the interval between component lower plate (7) of component clamping plate (2), and the screw hole (5) of wearing through these two clamping plate adds nut compressing and links into an integrated entity with the screw rod on component train wheel bridge (6) and component lower plate (7); Like this, every girder steel (8) is fixedly connected with the some of center clamping plate (1) with component clamping plate (2), each component pile tube (11) component clamping plate (2) above, by girder steel (8) and center clamping plate (1), are all integral two or more component pile tubes (11) with a tested pile for prestressed pipe (10) stressed joint;

[6] measure the bearing capacity not sinking of tested pile for prestressed pipe (10): by being clipped in center clamping plate (1), be connected with jack pressure recorder (15) with displacement record instrument (12) with the jack between tested pile for prestressed pipe (10), and energising starts to record pressure; Start the jack in jack and displacement record instrument (12), observe tested pile for prestressed pipe (10) and have or not sinking bearing in the regulation bearing capacity time, or whether sinking size is in prescribed limit.

3. Three-dimensional triangle posture is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: comprise the radial three-dimensional of a plurality of triangular framings, each triangular framing comprises that a standpipe (17), a diagonal member (18) are connected and form with a horizontal drawing bar (19); A plurality of triangular framings post centered by standpipe (17) becomes radial three-dimensional; A plurality of horizontal drawing bars (19) in a plurality of triangular framings are the radial fabricated structures in isoplanar being connected as a single entity, above a plurality of horizontal drawing bars (19) radial structure center, connect a standpipe (17), the upper end of many diagonal members (18) is all connected with a unique standpipe (17), and the lower end of many diagonal members (18) is connected with the horizontal drawing bar (19) of diverse location respectively;

[1] horizontal drawing bar (19) fabricated structure:

Horizontal drawing bar (19) comprises center clamping plate (1), component clamping plate (2), with the girder steel (8) that is connected center clamping plate (1) and component clamping plate (2);

Center clamping plate (1) structure of horizontal drawing bar (19): center clamping plate (1) comprise center train wheel bridge (3) and center lower plate (4), has spacing distance between center train wheel bridge (3) and center lower plate (4); Between center train wheel bridge (3) and center lower plate (4), with many support columns (16), connect; The center of center train wheel bridge (3) is provided with train wheel bridge hole, Yi Ge center, and center lower plate (4) is provided with the next big nut (20) towards the correspondence position in train wheel bridge hole, center; A positioning screw (21) connects through the next big nut of train wheel bridge Kong Yu center, center lower plate (4) (20), make positioning screw (21) below with center lower plate (4) close contact, the next big nut (20) pitch of center lower plate (4) is greater than the pitch at connected positioning screw (21) position; ; A upper big nut (22) is connected with positioning screw (21) on center train wheel bridge (3), upper big nut (22) is stretched out in the upper end of positioning screw (21), and the upper end of positioning screw (21) has certain length to protrude on upper big nut (22); Positioning screw (21) upper end has certain length to extend among standpipe (17) interior sky below, is closely nested or screw connection, and the external diameter of upper big nut (22) is greater than the external diameter of standpipe (17);

Component clamping plate (2) structure of horizontal drawing bar (19): component clamping plate (2) comprise component train wheel bridge (6) and component lower plate (7), on component train wheel bridge (6) and component lower plate (7), be arranged with at least two group positions corresponding wear screw hole (5), wearing in screw hole (5) that position is corresponding connects with the screw rod (14) with nut, the screw hole (5) of wearing does not on the same group become to be arranged in parallel, and wears screw hole (5) for every group and has at least two to wear screw hole (5); Between component train wheel bridge (6) and component lower plate (7), there is spacing distance; On component lower plate (7), be also provided with the hole (9) that connects component stake:

Girder steel (8) structure of horizontal drawing bar (19): girder steel (8) one end is band clamping plate end, and the other end is not for being with clamping plate end; Girder steel (8) with the structure of clamping plate end is: the both sides of girder steel (8) termination are fixed with respectively girder steel clamping plate (23), two girder steel clamping plate (23) all stretch out girder steel (8) respectively on girder steel (8), and the part that two girder steel clamping plate (23) stretch out girder steel (8) connects with a short column (24);

The radial combination structure in a plurality of horizontal drawing bars (19) isoplanar: the surrounding of a plurality of component clamping plate (2) Yi Ge center clamping plate (1) distinguishes girder steel (8) for portion and connects into the radial combination structure in isoplanar; Many girder steels (8) have one end respectively at center clamping plate (1) different parts, be inserted among the interval between center train wheel bridge (3) and center lower plate (4), the other end of many girder steels (8) is connected with girder steel clamping plate (23); Center clamping plate (1) and girder steel clamping plate (23) girder steel (8) part through the component train wheel bridge (6) of component clamping plate (2) and the clearance space between component lower plate (7); Centered by center clamping plate (1), many girder steels (8) become the radial distribution in isoplanar with passed component clamping plate (2), and the band girder steel clamping plate (23) of girder steel (8) are in the outermost end position of this radial distribution; Make radial distributed architecture outermost end position, this isoplanar have girder steel clamping plate (23);

[2] structure of standpipe (17): be fixed with a bearing (25) among approaching the interior sky of standpipe (17) upper end, in the inner ring of bearing (25), be provided with a "T"-shaped bar (26), the transverse slat (27) of "T"-shaped bar (26) is positioned at bearing (25) below, the central post (28) of "T"-shaped bar (26) is through the inner ring hole of bearing (25), the top of central post (28) is positioned at the top end opening position that approaches standpipe (17), and there is topped hole (29) on the top of central post (28);

[3] structure of top cover (30): the thick cover plate (32) that comprises a short sleeve (31) and sealing short sleeve (31) upper end open, thick cover plate (32) is greater than the cross section of short sleeve (31), the radial a plurality of layback plates (33) that are fixedly connected with in short sleeve (31) outside, each layback plate (33) is also fixedly connected with thick cover plate (32), and each layback plate (33) is provided with layback plate hole (34); Thick cover plate (32) covers the top in standpipe (17);

[4] structure of diagonal member (18): comprise upper connecting rod (35) and lower link (36), between upper connecting rod (35) and lower link (36), with a shaped as frame connector (37), connect, the relative both sides of shaped as frame connector (37) are connected with the threaded one end of lower link (36) with one end of upper connecting rod (35) respectively; The relative both sides of shaped as frame connector (37) hand of spiral being connected with lower link (36) with upper connecting rod (35) is contrary; The other end of upper connecting rod (35) is connected with a female clip (38);

[5] structure of triangular framing: triangular framing comprises the combining structure of standpipe (17), top cover (30), the peaceful pull bar of diagonal member (18) (19); Between two girder steel clamping plate (23) of girder steel (8) termination of horizontal drawing bar (19), short column (24) connects, this short column (24) is rotationally connected with lower link (36) lower end of diagonal member (18), and lower link (36) upper end is connected with shaped as frame connector (37); The mode that the female clip (38) of upper connecting rod (35) upper end of diagonal member (18) and the thick cover plate (32) of top cover (30) connect with the tip is rotationally connected; The short sleeve (31) of top cover (30) is enclosed within standpipe (17) upper end; The mode that the outside of the center clamping plate (1) that the lower end of standpipe (17) is enclosed within horizontal drawing bar (19) positioning screw (21) is above nested connects, the big nut (22) of the lower end contact center clamping plate (1) of standpipe (17);

[6] the radial three-dimensional of a plurality of triangular framings: many horizontal drawing bars (19) fabricated structure is a radial structure of plane, the positioning screw (21) at many horizontal drawing bars (19) fabricated structure center is connected with the mode of being nested below of standpipe (17) above, the upper surface cover of standpipe (17) has top cover (30), short column (24) on the girder steel clamping plate (23) of each horizontal drawing bar (19) is rotationally connected with the lower end of diagonal member (18), standpipe (17) top cover (30) layback plate (33) is above rotationally connected with the upper end female clip (38) of diagonal member (18), the radial three-dimensional that forms a plurality of triangular framings.

4. Three-dimensional triangle posture according to claim 3 is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: below the center lower plate (4) of center clamping plate (1), be provided with rotatable wheel (39), and be provided with rotatable wheel (39) below girder steel (8) or girder steel clamping plate (23).

5. Three-dimensional triangle posture according to claim 4 is measured the pressure testing device of pile for prestressed pipe with periphery pile tube component, it is characterized in that: rotatable wheel (39) is concave panel wheel.

6. Three-dimensional triangle posture according to claim 3 is measured the pressure-measuring method of pile for prestressed pipe with periphery pile tube component, it is characterized in that: during the bearing capacity that do not sink in the pile for prestressed pipe load of measuring building foundation, the component pile tube (11) of using as auxiliary measuring with tested pile for prestressed pipe (10) survey pile for prestressed pipe around, component pile tube (11) is at least 2, and its bearing capacity determination step that tested pile for prestressed pipe (10) is not sunk is as follows:

[2] at the end face of jack and displacement record instrument (12), place center clamping plate (1): the center lower plate (4) of center clamping plate (1) is contacted with displacement record instrument (12) with jack, jack and displacement record instrument (12) are clipped between center clamping plate (1) and tested pile for prestressed pipe (10), the center train wheel bridge (3) of center clamping plate (1) upwards, has spacing distance between center train wheel bridge (3) and center lower plate (4);

[3] selected component pile tube (11): select from nearest at least two pile for prestressed pipe of tested pile for prestressed pipe (10) as component pile tube (11), the bearing capacity that tested pile for prestressed pipe (10) does not sink is F, when any one component pile tube (11) is upwards pulled up, do not have that any what move up is f to uplift force, the quantity of component pile tube (11) is n, essential satisfied: f1+f2+f3 ... + fn>F, and F/n<f;

[4] end face at component pile tube (11) connects component clamping plate (2): with protruding from the hole (9) of component pile tube (11) the vertical load-bearing main reinforcement of own end face (13) through the connection component stake on the component lower plate (7) of component clamping plate (2), the vertical load-bearing main reinforcement (13) through connecting the hole (9) of component stake is fixedly connected with both with welding or nut; By component lower plate (7), the end face of component pile tube (11) is fixedly connected with to component clamping plate (2);

[5] with girder steel (8), tested pile for prestressed pipe (10) is connected with component pile tube (11): one end of girder steel (8) is positioned among the center train wheel bridge (3) and the interval between center lower plate (4) of center clamping plate (1), the screw rod on Bing Yong center train wheel bridge (3) and center lower plate (4) adds nut compressing and links into an integrated entity through the screw hole (5) of wearing of these two clamping plate; Another of girder steel (8) is partly positioned among the component train wheel bridge (6) and the interval between component lower plate (7) of component clamping plate (2), and the screw hole (5) of wearing through these two clamping plate adds nut compressing and links into an integrated entity with the screw rod on component train wheel bridge (6) and component lower plate (7); Like this, every girder steel (8) is fixedly connected with the some of center clamping plate (1) with component clamping plate (2), each component pile tube (11) component clamping plate (2) above, by girder steel (8) and center clamping plate (1), are all integral two or more component pile tubes (11) with a tested pile for prestressed pipe (10) stressed joint;

[6] whole pressure testing device is installed: by pressure testing device structure claimed in claim 3, standpipe (17), top cover (30), the peaceful pull bar of diagonal member (18) (19) combination are mounted to whole Three-dimensional triangle posture and with periphery pile tube component, measure the pressure testing device of pile for prestressed pipe;

[7] measure the bearing capacity not sinking of tested pile for prestressed pipe (10): by being clipped in center clamping plate (1), be connected with jack pressure recorder (15) with displacement record instrument (12) with the jack between tested pile for prestressed pipe (10), and energising starts to record pressure; Energising starts the jack in jack and displacement record instrument (12), observe tested pile for prestressed pipe (10) and have or not sinking bearing in the regulation bearing capacity time, or whether sinking size is in prescribed limit.