CN208748712U - A kind of test pile vertical compression detection device - Google Patents

A kind of test pile vertical compression detection device Download PDF

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Publication number
CN208748712U
CN208748712U CN201821124730.2U CN201821124730U CN208748712U CN 208748712 U CN208748712 U CN 208748712U CN 201821124730 U CN201821124730 U CN 201821124730U CN 208748712 U CN208748712 U CN 208748712U
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China
Prior art keywords
pile
test pile
detection device
jack
reinforcing bar
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CN201821124730.2U
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武文杰
武丽娅
王海龙
周婧怡
李峰
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Hebei Hengji Construction Engineering Quality Inspection Co Ltd
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Hebei Hengji Construction Engineering Quality Inspection Co Ltd
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Abstract

The utility model discloses a kind of test pile vertical compression detection devices, including the fixed test pile being vertically arranged, it is mounted on the counterforce device on test pile top and is mounted on the detection device on test pile periphery, counterforce device includes two groups of anchoring piles, two secondary beams, girder and jack, several fixed steel bars stretched out upwards are poured in the anchoring pile, back end is provided with and two pieces of girder clamping plates disposed in parallel twice, two clamping plates are correspondingly arranged with two anchoring piles respectively, two secondary beams are stretched out at the both ends of clamping plate, the both ends for stretching out secondary beam are respectively provided with several receiving notches for accommodating reinforcing bar, it accommodates in notch and is respectively arranged with the connection reinforcing bar being vertically arranged, the bottom end and fixed steel bars for connecting reinforcing bar, which correspond, to be welded to connect, clamping plate is stretched out on the top for connecting reinforcing bar, anchor plate is fixedly installed at the top of clamping plate on connection reinforcing bar.With easy for construction, saving material, reusable advantage.

Description

A kind of test pile vertical compression detection device
Technical field
The utility model design building structure detection tests field, in particular to a kind of test pile vertical compression detection dress It sets.
Background technique
Engineering pile is used in the engineering, finally in the stake built, stress works in structures.The mesh of engineering pile detection Mainly construct after for check and accept foundation is provided, test pile: be Construction of Engineering Pile early period in order to determine engineering pile actually by The inspection stake whether the case where power situation and design meets;Test pile can be engineering pile, may not be engineering pile; If various aspects condition is identical as design, when detection, is also not destructive detection, that test pile can also be used when engineering pile.Anchoring pile: It is a kind of auxiliary pile of test pile, for carrying out the vertical compression loading test of single pile, static test is used close to vertical The test method of the actual operating conditions of compressive pile determines pile foundation vertical compressive ultimate bearing capacity, as design considerations, or to work The bearing capacity of journey stake is sampled inspection and evaluation.
The prior art can refer to the patent that notification number is CN205475370U, and it discloses a kind of detections of single pile vertical resistance pressure Device, including counterforce device, test pile and detection device, counterforce device include two groups of anchoring piles, with the affixed secondary beam of anchoring pile and with The affixed girder of secondary beam, girder center are located above test pile, are equipped with jack between test pile and girder, affixed on test pile There is bearing plate, limiting slot is provided on bearing plate, limiting slot is located in the middle part of bearing plate, solves the problems, such as that jack is easy bias.
In order to save material, it is attached between usual anchoring pile and secondary beam by reinforcing bar, fixed steel bars has been poured in anchoring pile, Fixed steel bars top is welded with connection reinforcing bar, connects the bottom end for being welded on secondary beam at the top of reinforcing bar, is disadvantageous in that, connects steel After one end welding of muscle, the other end is easy to appear curtailment when welding and more difficulty is welded.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of detections of test pile vertical compression Device, with easy for construction, saving material, reusable advantage.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of test pile vertically resists Detection device is pressed, including the fixed test pile being vertically arranged, the counterforce device on test pile top is mounted on and is mounted on test The detection device on stake periphery, counterforce device include two groups of anchoring piles, two secondary beams, girder and jack, and there are two every group of anchoring piles, anchor Stake lower end is embedded to underground, and the top of every group of anchoring pile is connected to the both ends of corresponding secondary beam, Liangping row and is correspondingly arranged twice, The both ends of girder are respectively fixedly connected with the bottom end in the middle part of two secondary beams, jack be fixedly mounted on the top of test pile and with master It is correspondingly arranged in the middle part of beam, several fixed steel bars stretched out upwards is poured in the anchoring pile, back end is provided with and two twice Block girder clamping plate disposed in parallel, two clamping plates are correspondingly arranged with two anchoring piles respectively, and two secondary beams are stretched out at the both ends of clamping plate, are stretched out secondary The both ends of beam are respectively provided with several receiving notches for accommodating reinforcing bar, accommodate in notch and are respectively arranged with the connection steel being vertically arranged Muscle, the bottom end and fixed steel bars for connecting reinforcing bar, which correspond, to be welded to connect, and clamping plate is stretched out on the top for connecting reinforcing bar, connects on reinforcing bar Clamping plate at the top of be fixedly installed with anchor plate.
By using above-mentioned technical proposal, anchor plate is conventionally known part, is combined into one by nut and backing plate, technique Simply, effect is high, connect with reinforced bar straight thread, easy to operate, accelerates the speed of application of reinforced bar engineering.Girder is in secondary beam, connection It can not be moved upwards under the connection of reinforcing bar, fixed steel bars and anchoring pile component, when jack stretches, in the case where girder is motionless, Jack pair test pile applies pressure, thus obtain vertical allowable load capacity of single pile, it is easy for construction, material is saved, can be weighed It is multiple to utilize.
The utility model is further arranged to: the test pile includes pile body and the pile crown for reinforcing bulk strength, pile crown It wraps for steel plate or stirrup and the top for being fixed in ontology.
It is wrapped with the steel plate of 5mm or away within the scope of test 1 times of stake diameter of stake top away from stake by using above-mentioned technical proposal Setting stirrup within the scope of 1.5 times of stake diameters, spacing 100mm are pushed up, stake top is arranged reinforced mesh 3, spacing 80mm.Make pile crown in this way Strength grade of concrete preferably improves 2 grades than pile concrete, improves the intensity of test pile, places test pile top and breaks because of stress Damage.
The utility model is further arranged to: the top of the test pile is threaded with spherical bearing, spherical bearing packet The upper bracket and undersetting being connected together are included, one end of undersetting towards upper bracket is provided with ball slot, is equipped in ball slot Core, is fixedly connected with slide plate at the top of core, and slide plate is against upper bracket towards on the surface of undersetting, and jack is mounted on ball On type support.
By using above-mentioned technical proposal, it is equipped with spherical bearing, so that the support effect of jack is preferable.
The utility model is further arranged to: the spherical bearing top is connected with bearing plate, opens on the middle part of bearing plate There is limiting slot, jack is mounted in limiting slot and the axis of jack is overlapped with the axis of test pile.
By using above-mentioned technical proposal, when test pile sinks and even rotates sinking, jack it is practical rationally in The heart is still consistent with test stake body axis, and guarantee test stake is not because jack reason generates eccentricity issues.
The utility model is further arranged to: the spherical bearing is threadedly coupled with bearing plate.
By using above-mentioned technical proposal, facilitate installing and dismounting.
The utility model is further arranged to: there are gaps between the jack and girder.
By using above-mentioned technical proposal, pass through the variation of observation gap, it is thus understood that anchoring pile is by after the gravity of girder and secondary beam Decline degree.When installation, the components such as jack are first installed, girder and secondary beam are finally installed.If girder compacting is very heavy after installation Top, the gap in design disappear, and illustrate anchoring pile by sinking after the gravity of girder and secondary beam, to prove anchoring pile bearing capacity not Foot.The anchoring pile of compression sinking in this way contacts insecure with soil simultaneously, so the breakout capacity of anchoring pile is also insufficient.This experiment When, anchoring pile can rise, and the pressure portion of jack switchs to the acceleration for increase anchoring pile, and the stress of test pile is reduced, test What sedimentation is very small before stake, and experiment probability is untrue, and result is caused to judge by accident;Conversely, gap presence can be normally carried out reality It tests.
The utility model is further arranged to: the detection device include two datum line beams being located in the same horizontal plane, The reference stake and several displacement meters being separately mounted on reference stake and datum line beam at datum line beam both ends are supported, displacement meter is divided into perpendicular Straight displacement meter and horizontal displacement meter, vertical displacement meter are fixedly connected on the top of datum line beam, vertical displacement there are four setting altogether Meter, which extends to, to be against on test pile, and horizontal displacement meter is fixedly connected on a reference stake, two horizontal displacement meters there are two setting altogether It is vertically arranged.
By using above-mentioned technical proposal, vertical displacement meter is used to measure the vertical displacement of test pile, two horizontal displacement meters It is vertically arranged, horizontal displacement meter is used to measure the rotation distance of test pile.By the ratio for calculating vertical displacement and horizontal displacement The corner of test pile can be acquired, rotation situation of the test pile in sinking watching is understood.
The utility model is further arranged to: the top of the wherein reference stake in two reference stakes with datum line beam cooperation End has U-type groove, and datum line beam one end is placed on the U-type groove being opened on datum line beam, and the other end and reference stake weld.
By using above-mentioned technical proposal, when datum line beam expands with heat and contract with cold, reference stake slides in U-type groove, prevents in this way Datum line beam deflection deformation caused by temperature change.If both ends are affixed, when the temperature varies, datum line beam extends or shrinks, Reference stake is substantially motionless, leads to datum line beam deflection deformation.
In conclusion the utility model has the following beneficial effects: anchor plate is conventionally known part, by nut and pad Plate is combined into one, simple process, and effect is high, connect with reinforced bar straight thread, easy to operate, accelerates the speed of application of reinforced bar engineering. Girder can not move upwards under the connection of secondary beam, connection reinforcing bar, fixed steel bars and anchoring pile component, when jack stretches, in master In the case that beam is motionless, jack pair test pile applies pressure, thus obtain vertical allowable load capacity of single pile, construction party Just, material is saved, it is reusable.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model;
Fig. 2 is the structural schematic diagram that the utility model is used to embody detection device;
Fig. 3 is the installation explosive view that the utility model is used to embody spherical bearing;
Fig. 4 is the structural schematic diagram that the utility model is used to embody spherical bearing;
Fig. 5 is the schematic diagram that the utility model is used to embody gap.
Appended drawing reference: 1, test pile;11, pile body;12, pile crown;13, spherical bearing;131, upper bracket;132, undersetting; 133, core;134, slide plate;14, bearing plate;141, limiting slot;2, counterforce device;21, anchoring pile;22, secondary beam;23, girder;24, Jack;25, fixed steel bars;26, limit plate;261, reinforced hole is worn;27, reinforcing bar is connected;28, anchor plate;3, detection device; 31, datum line beam;32, reference stake;321, U-type groove;33, displacement meter;331, vertical displacement meter;332, horizontal displacement meter;4, gap.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.
As shown in Figure 1, a kind of test pile vertical compression detection device, including the fixed test pile 1 being vertically arranged, is mounted on The counterforce device 2 on 1 top of test pile and the detection device 3 for being mounted on 1 periphery of test pile, counterforce device 2 include two groups of anchoring piles 21, two secondary beams 22, girder 23 and jack 24, there are two every group of anchoring piles 21, and the equal lower end of anchoring pile 21 is embedded to underground, every group of anchoring pile 21 top is connected to the both ends of corresponding secondary beam 22, and two secondary beams 22 are parallel and are correspondingly arranged, and the both ends of girder 23 are solid respectively Surely it is connected to the bottom end at two secondary beams, 22 middle part, jack 24 is fixedly mounted on the top of test pile 1 and the middle part with girder 23 It is correspondingly arranged, several fixed steel bars 25 stretched out upwards is poured in anchoring pile 21, two secondary beams, 22 top is provided with and two blocks of girders 23 limit plates 26 disposed in parallel, two pieces of limit plates 26 are correspondingly arranged with two anchoring piles 21 respectively, and the both ends of limit plate 26 stretch out two Secondary beam 22, the both ends for stretching out secondary beam 22 are respectively provided with several reinforcing bars that accommodate and wear reinforced hole 261, wear in reinforced hole 261 and set respectively It is equipped with the connection reinforcing bar 27 being vertically arranged, the bottom end and fixed steel bars 25 for connecting reinforcing bar 27, which correspond, to be welded to connect, and steel is connected Limit plate 26 is stretched out on the top of muscle 27, connects and is fixedly installed with anchor plate 28 at the top of the limit plate 26 on reinforcing bar 27.
Anchor plate 28 is conventionally known part, is combined into one by nut and backing plate, simple process, and effect is high, with reinforcing bar Straight screw connection, it is easy to operate, accelerate the speed of application of reinforced bar engineering.Girder 23 is in secondary beam 22, connection reinforcing bar 27, fixed steel bars 25 and 21 component of anchoring pile connection under can not move upwards, jack 24 stretch when, in the case where girder 23 is motionless, jack 24 pairs of test piles 1 apply pressure, to obtain vertical allowable load capacity of single pile.
Detection device 3 includes two datum line beams 31 being located in the same horizontal plane, support datum line beam 31 combined with Figure 1 and Figure 2, The reference stake 32 at both ends and several displacement meters 33 being separately mounted on reference stake 32 and datum line beam 31, each datum line beam 31 In the two sides of test pile 1, the top of the wherein reference stake 32 in two reference stakes 32 cooperated with datum line beam 31 has U-type groove 321,31 one end of datum line beam is placed on the U-type groove 321 being opened on datum line beam 31, and the other end and reference stake 32 weld.Work as benchmark When beam 31 expands with heat and contract with cold, reference stake 32 slides in U-type groove 321, prevents 31 bending deformation of datum line beam caused by temperature change in this way Shape.If both ends are affixed, when the temperature varies, datum line beam 31 extends or shrinks, and reference stake 32 is substantially motionless, leads to benchmark 31 deflection deformation of beam.
Such as Fig. 2, displacement meter 33 divides for vertical displacement meter 331 and horizontal displacement meter 332, and vertical displacement meter 331 is set altogether There are four, it is fixedly connected on the top of datum line beam 31, vertical displacement meter 331, which extends to, to be against on test pile 1, vertical displacement meter 331 For measuring the vertical displacement of test pile 1, horizontal displacement meter 332 is fixedly connected on a reference stake 32 there are two setting altogether, Two horizontal displacement meters 332 are vertically arranged, and horizontal displacement meter 332 is used to measure the rotation distance of test pile 1.By calculating vertical position The corner that can acquire test pile 1 with the ratio of horizontal displacement is moved, rotation situation of the test pile 1 in sinking watching is understood.
Such as Fig. 2, test pile 1 includes pile body 11 and the pile crown 12 for reinforcing bulk strength, and pile crown 12 is wrapped for steel plate or stirrup And it is fixed in the top of ontology, away within the scope of test pile 1 stake top, 1 times of stake diameter, being wrapped with the steel plate of 5mm or 1.5 times away from stake top stakes Stirrup, spacing 100mm are set within the scope of diameter, and stake top is arranged reinforced mesh 3, spacing 80mm.Make 12 concrete of pile crown in this way Strength grade preferably improves 2 grades than pile concrete, improves the intensity of test pile 1, and it is damaged due to stress to place 1 top of test pile.
In conjunction with Fig. 3 and Fig. 4, the top of test pile 1 is threaded with spherical bearing 13, and spherical bearing 13 includes being connected to one The upper bracket 131 and undersetting 132 risen, one end of undersetting 132 towards upper bracket 131 are provided with ball slot, installation in ball slot There is core 133, the top of core 133 is fixedly connected with slide plate 134, and slide plate 134 is against upper bracket 131 towards undersetting 132 On surface.13 top of spherical bearing is fixedly connected with bearing plate 14, and limiting slot 141, jack are provided on the middle part of bearing plate 14 24 are mounted in limiting slot 141 and the axis of jack 24 is overlapped with the axis of test pile 1.Limiting slot 141 to jack 24 into Row limit cooperation, guarantees that bearing plate 14 and jack 24 do not generate displacement between each other, sinks in test pile 1 and even rotates When sinking, the practical rationally center of jack 24 is still consistent with 1 pile body axis of test pile, and guarantee test stake 1 is not because very heavy It pushes up 24 reasons and generates eccentricity issues.
Such as Fig. 5, there are gaps 4 between jack 24 and girder 23, pass through observation gap 4 and change, it is thus understood that anchoring pile 21 by Decline degree after the gravity of girder 23 and secondary beam 22.When installation, the components such as jack 24 are first installed, 23 He of girder is finally installed Secondary beam 22.If girder 23 is compacted jack 24 after installation, the gap 4 in design disappears, illustrate anchoring pile 21 by girder 23 and time Sink after the gravity of beam 22, to prove 21 Lack of support of anchoring pile.The anchoring pile 21 to sink that is pressurized so simultaneously is contacted with soil It is insecure, so the breakout capacity of anchoring pile 21 is also insufficient.When this experiment, anchoring pile 21 can rise, the pressure portion of jack 24 Switch to the acceleration for increase anchoring pile 21, and the stress of test pile 1 is reduced, what sedimentation is very small before test pile 1, tests several Rate is untrue, and result is caused to judge by accident;Conversely, gap 4 is in the presence of can be normally carried out experiment.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of test pile vertical compression detection device including the fixed test pile (1) being vertically arranged, is mounted on test pile (1) The counterforce device (2) on top and the detection device (3) for being mounted on test pile (1) periphery, counterforce device (2) include two groups of anchoring piles (21), two secondary beams (22), girder (23) and jack (24), there are two every group of anchoring piles (21), anchoring pile (21) lower end embedment Underground, the top of every group of anchoring pile (21) are connected to the both ends of corresponding secondary beam (22), and two secondary beams (22) are parallel and are correspondingly arranged, The both ends of girder (23) are respectively fixedly connected with the bottom end in the middle part of two secondary beams (22), and jack (24) is fixedly mounted on test pile (1) top and be correspondingly arranged in the middle part of girder (23), it is characterised in that: poured and several stretched in the anchoring pile (21) upwards Fixed steel bars (25) out, two secondary beams (22) top be provided with two pieces of girder (23) limit plates disposed in parallel (26), two pieces Limit plate (26) is correspondingly arranged with two anchoring piles (21) respectively, and two secondary beams (22) are stretched out at the both ends of limit plate (26), stretches out secondary beam (22) both ends are respectively provided with several reinforcing bars that accommodate and wear reinforced hole (261), wear to be respectively arranged in reinforced hole (261) and set vertically The connection reinforcing bar (27) set, the bottom end and fixed steel bars (25) for connecting reinforcing bar (27), which correspond, to be welded to connect, and connects reinforcing bar (27) limit plate (26) are stretched out on top, are fixedly installed with anchor plate (28) at the top of the limit plate (26) in connection reinforcing bar (27).
2. a kind of test pile vertical compression detection device according to claim 1, it is characterised in that: the test pile (1) Including pile body (11) and reinforce the pile crown (12) of bulk strength, pile crown (12) is that steel plate is wrapped or stirrup and the top for being fixed in ontology End.
3. a kind of test pile vertical compression detection device according to claim 1, it is characterised in that: the test pile (1) Top be threaded with spherical bearing (13), spherical bearing (13) includes the upper bracket (131) and undersetting being connected together (132), one end of undersetting (132) towards upper bracket (131) is provided with ball slot, and core (133), core are equipped in ball slot (133) it is fixedly connected at the top of slide plate (134), slide plate (134) is against surface of the upper bracket (131) towards undersetting (132) On, jack (24) is mounted on spherical bearing (13).
4. a kind of test pile vertical compression detection device according to claim 3, it is characterised in that: the spherical bearing (13) top is connected with bearing plate (14), is provided on the middle part of bearing plate (14) limiting slot (141), and jack (24) is mounted on limit In position slot (141) and the axis of jack (24) is overlapped with the axis of test pile (1).
5. a kind of test pile vertical compression detection device according to claim 4, it is characterised in that: the spherical bearing (13) it is threadedly coupled with bearing plate (14).
6. a kind of test pile vertical compression detection device according to claim 1, it is characterised in that: the jack (24) There are gap (4) between girder (23).
7. a kind of test pile vertical compression detection device according to claim 1, it is characterised in that: the detection device (3) include two datum line beams being located in the same horizontal plane (31), support datum line beam (31) both ends reference stake (32) and if The dry displacement meter (33) being separately mounted on reference stake (32) and datum line beam (31), displacement meter (33) are divided into vertical displacement meter (331) and horizontal displacement meter (332), vertical displacement meter (331) are fixedly connected on the top of datum line beam (31) there are four setting altogether End, vertical displacement meter (331), which extends to, to be against on test pile (1), and horizontal displacement meter (332) is fixedly connected on there are two setting altogether On a piece reference stake (32), two horizontal displacement meters (332) are vertically arranged.
8. a kind of test pile vertical compression detection device according to claim 7, it is characterised in that: described and datum line beam (31) top of the wherein reference stake (32) in two reference stakes (32) cooperated has U-type groove (321), datum line beam (31) one end It is placed on the U-type groove (321) being opened on datum line beam (31), and the other end and reference stake (32) are welded.
CN201821124730.2U 2018-07-16 2018-07-16 A kind of test pile vertical compression detection device Active CN208748712U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111042221A (en) * 2019-12-16 2020-04-21 山东恒吉勘察设计有限公司 Foundation pile static load testing method based on flat plate load tester
CN112160356A (en) * 2020-10-16 2021-01-01 甘肃精信建设工程质量检测有限公司 Fixture for single-pile vertical compression-resistant static load test anchor pile method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111042221A (en) * 2019-12-16 2020-04-21 山东恒吉勘察设计有限公司 Foundation pile static load testing method based on flat plate load tester
CN111042221B (en) * 2019-12-16 2021-07-20 山东恒吉勘察设计有限公司 Foundation pile static load testing method based on flat plate load tester
CN112160356A (en) * 2020-10-16 2021-01-01 甘肃精信建设工程质量检测有限公司 Fixture for single-pile vertical compression-resistant static load test anchor pile method

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