CN207904993U - A kind of bearing capacity of pile foundation detection device - Google Patents
A kind of bearing capacity of pile foundation detection device Download PDFInfo
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- CN207904993U CN207904993U CN201820224973.7U CN201820224973U CN207904993U CN 207904993 U CN207904993 U CN 207904993U CN 201820224973 U CN201820224973 U CN 201820224973U CN 207904993 U CN207904993 U CN 207904993U
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- main body
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- pile foundation
- detection device
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Abstract
The utility model discloses a kind of bearing capacity of pile foundation detection devices, including main body, several auxiliary bodies and electronic detecting device；One is provided on the end face of the main body can protrude movable contact site, and the electronic detecting device is arranged in the body interior and abuts the contact site；Several auxiliary bodies are arranged around the main body, and telescopic connector is provided between the auxiliary body and the main body, and the stress surface of bearing capacity is made up of the end face of the main body, the auxiliary body.The utility model is intended to provide a kind of bearing capacity of pile foundation detection device and its detection method, and to facilitate the detection to bearing capacity of pile foundation, and the structure of the device is simple, low manufacture cost, easy to detect reliable and can accomplish to reuse, applied widely.
Description
Technical field
The utility model is related to pile foundation engineering technique field, specifically a kind of bearing capacity of pile foundation detection device.
Background technology
Pile foundation is one of common base form of engineering structure, belongs to underground concealed engineering, and construction technology is more complicated, work
Skill flow is mutually linked closely, when construction the careless slightly mass defect for the variforms such as broken pile complexity easily occur, influence stake
The integrality of body and the bearing capacity of stake, to directly affect the safety of superstructure.Therefore, quality testing becomes pile foundation work
The important means of journey quality control.
During piling, Hai Li (Hiley) formula in dynamic pile formula are as during piling when last injection
Ultimate bearing capacity is estimated, and is widely used in western countries.Extra large profit formula is kept in nineteen thirty according to energy by extra large sharp (Hiley, A)
What permanent principle and shock theorem proposed.It mainly hammers the free-falling hammer feature of process according to hammer core in pile sinking, will hammer process
It is divided into and hits last stage, stage, elastic Restoration stage, rebound stage totally 4 stages after shock.Energy based on each stage is kept
Permanent, momentum transfer process is analyzed, and has shown that pile driving formula, expression way are as follows：
Pu=ξ WrHη/(e+C/2)
Wherein, PuFor the ultimate bearing capacity of stake；WrTo hammer core weight into shape；H is hammering high jump；ξ is pile monkey energy transmission reduction system
Number；η is hammering efficiency；E is final set pile penetration；Pile-soil system proof resilience deforms when C is hammering, i.e., live detectable stake top is returned
Bullet value.
Based on extra large sharp formula, a kind of bearing capacity of pile foundation test device being installed on stake top can be researched and developed, it is dynamic applied to engineering pile
Bearing capacity examination during power piling obtains bearing capacity of pile foundation by the stake soil series system rebound value measured.
Utility model content
For the deficiency for solving in the prior art, the purpose of this utility model is to provide a kind of detections of bearing capacity of pile foundation to fill
It sets, to facilitate the detection to bearing capacity of pile foundation, and the structure of the device is simple, low manufacture cost, easy to detect reliable and can do
It is applied widely to reuse.
To solve the above problems, the utility model provides a kind of bearing capacity of pile foundation detection device, including main body, several auxiliary bodies
And electronic detecting device；
One is provided on the end face of the main body can protrude movable contact site, and the electronic detecting device is arranged described
Body interior simultaneously abuts the contact site；
Several auxiliary bodies are arranged around the main body, and telescopic connection is provided between the auxiliary body and the main body
Part is made up of the stress surface of bearing capacity the end face of the main body, the auxiliary body.
Preferably, the auxiliary body includes the auxiliary body of the auxiliary body in upper layer and lower layer, lead between the auxiliary body in the upper layer and the auxiliary body of lower layer
It crosses connection hookup to be attached, the hookup connects the main body by connecting the connector.
Preferably, the main body includes upper layer main body and lower layer main body, the upper layer main body and the lower layer main body it
Between be attached by connecting the hookup, the hookup between the main body and the auxiliary body, which passes through, connects the company
Fitting is attached.
Preferably, the main body is cylinder, the auxiliary body is cylinder of the bottom surface in sector, and several auxiliary bodies are with institute
It is that the center of circle forms round stress surface around arranging to be arranged in the side of the main body to state main body.
Preferably, the interior arc dia of the auxiliary body is consistent with the diameter of the main body, several auxiliary bodies can surround one
Annulus and the side that the main body is abutted with the inner headed face of the annulus.
Preferably, the contact site includes a sliding block, the sliding block is corresponded in the main body and is offered for the sliding block
The groove of up and down motion.
Preferably, the electronic detecting device is digital-display resiliometer, the test side protrusion setting of the digital-display resiliometer
In the groove and abut the sliding block.
Using above-mentioned preferred embodiment, compared with prior art, the utility model has the following advantages：
1, ingenious to be provided with the detection device being made of main body and auxiliary body, it can be realized by connector between cylinder and auxiliary body
Mutual spacing from adjustment so that the upper surface of detection device can form the stress consistent with test pile top surface area is waited for
Face so that detection device can be suitably used for the wide foundation pile of various diameters, and applicability is good；And main body is all provided with auxiliary body and is set to two layers, on
It is attached by hookup between layer and lower layer, when upper and lower layer main body or auxiliary body damage, can directly carry out dismounting and replace
Change so that detection device it is simple and practical in structure, reduce the engineering cost of loading test.
2, it is attached by telescopic connector between detection device main body and auxiliary body, and the connector is both connected to
On hookup, actual demand when can be according to Site Detection carries out the replacement of parts, and connector is replaced with distance of stretch out and draw back more
Long connector to obtain the stress surface of forced area diameter bigger, replace the auxiliary body of face area bigger with obtain it is higher by
Power equilibrium degree, to improve detection device service life and testing result accuracy, improve detection construction benefit.
3, it is provided with the contact site of protrusion, and is abutted below contact site and is provided with electronic detecting device, by real-time
Checking spring range carry out data record, and can be arranged hand-held data gathering terminal to electronic detecting device carry out zeroing calibration sum number
According to input so that the process of detection is highly efficient accurate, and safety coefficient is high；According to the common pile frame in construction site and elevator
The equipment such as machine are provided with hanging apparatus so that the installing of detection device is more convenient, improves detection construction efficiency.
Description of the drawings
It is required in being described below to embodiment to make in order to illustrate more clearly of the utility model embodiment technical solution
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Overlooking structure diagram when Fig. 1 is the utility model detection device contraction state；
Schematic cross-sectional view when Fig. 2 is the utility model detection device contraction state；
Overlooking structure diagram when Fig. 3 is the utility model detection device extended configuration；
Schematic cross-sectional view when Fig. 4 is the utility model detection device extended configuration；
Overlooking structure diagram when Fig. 5 is the utility model detection device and hanging device cooperation；
Schematic cross-sectional view when Fig. 6 is the utility model detection device and hanging device cooperation；
Fig. 7 is the utility model hanging device side structure schematic view；
Fig. 8 is the utility model detection method flow diagram；
Wherein：
1- main bodys, the auxiliary bodies of 2-, 3- connectors, 4- hookups, 5- contact sites, 51- sliding blocks, 52- grooves, 6- detection of electrons dress
It sets, 7- transverse arms, 71- fixtures, 72- bolts, 8- cantilevers, 81- lifting lugs.
Specific implementation mode
In order to be more clearly understood that the above objects, features, and advantages of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in detail in body embodiment.It should be noted that in the absence of conflict, the implementation of the application
Feature in mode and embodiment can be combined with each other.Elaborate many details in order to abundant in the following description
Understand that the utility model, described embodiment are only a part of embodiment of the utility model, rather than whole realities
Apply mode.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
As shown in figs. 1-7, a kind of bearing capacity of pile foundation detection device provided by the utility model includes mainly main body 1, several
Auxiliary body 2 and electronic detecting device 6.
The main body 1 includes upper layer main body and lower layer main body, passes through company between the upper layer main body and the lower layer main body
It connects hookup 4 to be attached, the hookup 4 between the main body 1 and the auxiliary body 2 is connected by connecting connector 3
It connects.One is provided on the end face of the main body 1 can protrude movable contact site 5, and the electronic detecting device 6 is arranged in the master
1 inside of body simultaneously abuts the contact site 5；Preferably, the contact site 5 includes a sliding block 51, in the main body 1 described in correspondence
Sliding block 51 offers the groove 52 to move up and down for the sliding block 51.
Several auxiliary bodies 2 are arranged around the main body 1, and telescopic company is provided between the auxiliary body 2 and the main body 1
Fitting 3 is made up of the stress surface of bearing capacity the end face of the main body 1, the auxiliary body 2.Preferably, the auxiliary body 2 includes
The auxiliary body in upper layer and lower layer auxiliary body are attached between the auxiliary body in the upper layer and the auxiliary body of lower layer by connecting hookup 4, the connection
Device 4 connects the main body 1 by connecting the connector 3.
Preferably, the main body 1 is cylinder, the auxiliary body 2 is bottom surface in fan-shaped cylinder, several auxiliary bodies 2
It is that the center of circle forms round stress surface around arranging to be arranged in the side of the main body 1 with the main body 1.Further, described auxiliary
The interior arc dia of body 2 is consistent with the diameter of the main body 1, and several auxiliary bodies 2 can surround an annulus and the inner circle with the annulus
Face abuts the side of the main body 1.
The electronic detecting device 6 is digital-display resiliometer, and the test side protrusion of the digital-display resiliometer is arranged described recessed
In slot 52 and abut the sliding block 51.When original state, digital-display resiliometer is placed in inside the hookup 4 of main body 1；Work as hammering
When, sliding block 51 slides and pushes the test side of digital-display resiliometer down；After hammer action, the test side that digital-display resiliometer is pushed down is pushed up
Sliding block 51,51 upward sliding of the sliding block are played, digital-display resiliometer will automatically record lower stake top rebound value and carry out reserved transmission.
It is further detailed with reference to specific embodiment：
Embodiment 1
A kind of bearing capacity of pile foundation detection device circular slab, hookup 4 and attached is matched mainly by digital-display resiliometer, fanning strip
Part forms.The loading test of stake top can be positioned over by being assembled into together by 12 pieces of fanning strips, 2 pieces of circular slabs and 7 hookups
Device is connected with each other by being used as connector 3 by the high strength titanium alloy steel pole of collapsible elongation between 7 hookups,
Bearing capacity of pile foundation detection device maximum outside diameter can be made to expand to 1.4m from 0.8m.
1,2 pieces of circular slabs of main body are assembled by 2 pieces of circular slabs and 1 hookup 4 and are divided into top plate and lower plywood, the upper layer
Plate and the intermediate of lower plywood install hookup, and digital-display resiliometer is then installed in the hollow inside after circular slab is connect with hookup 4,
In the hollow inside, it is also installed with the displacement sensing of the force snesor of impulse force, detection fanning strip shift length suffered by detection main body 1
Device.
6 auxiliary bodies 2 are assembled by 12 pieces of fanning strips and 6 hookups 4, each auxiliary body forms upper layer by two pieces of fanning strips
Plate and lower plywood are equipped with hookup, and the auxiliary body 2 of composition are centered around on 1 side of main body between the top plate and lower plywood, will
Main body 1 is connected with the high strength titanium alloy steel pole of the collapsible elongation of the hookup 4 on auxiliary body 2.
In view of in test process, the hitting power between pile monkey and stake top is up to kiloton rank, the test of large diameter pile
Cheng Zhongke increases the forced area of detection device, ensures the top plate of detection device and bending for lower plywood by replacing fanning strip
Stress is taken in material permissible range, to avoid detection device from damaging during the test.The detection device each unit component
While mutual indepedent, and it is an entirety to be closely coupled, and each component can be replaced, entire test device maintenance letter
It is single, ensure the accurate and reliable of test result.
According to extra large sharp formula, rebound test value C passes through the widely applied wireless transmission skill in each advanced instrument at this stage
Art passes to the data collection station APP installed on mobile phone, and data collection station program is according to obtained rebound value C, in conjunction with
The recommended parameter of input and live actual parameter, hammer core weight Wr, hammer high jump H, energy transmission reduction coefficient ξ, hammer efficiency eta,
Final set pile penetration e, the automatic Ultimate Bearing Capacity for calculating the final set stage.
For ease of the understanding to this programme, a kind of bearing capacity of pile foundation detection method provided herein, using above-described inspection
It surveys device and carries out cooperation detection, include the following steps：
S1, movement simultaneously promote pile monkey, and check the breakage of pile monkey punch：If it was found that the flatness of pile monkey punch is discontented
Sufficient testing requirements should carry out field polish, to reach experimental test requirement；If pile monkey punch badly broken, should carry out after cutting stake
It polishes again.
S2, annular detection device is adjusted to and steel-pipe pile stake diameter size phase to be measured by the connector 3 of collapsible elongation
Together so that the main body 1 and the area for the stress surface that the auxiliary body 2 forms are consistent with the area of test pile to be checked.Mobile stake ship,
Operating space is provided for installation test device, then detection device is attached in foundation pile stake top by hanging device, it is described to hang
Installing is standby including transverse arm 7 and to be arranged cantilever 8 at 7 both ends of the transverse arm, and the cantilever 8 is set with being rotatably connected by bolt 72
It sets at the both ends of the transverse arm 7 and forms the accommodating space of the clamping detection device in the side of the transverse arm 7；The transverse arm
7 other side is equipped at least two fixtures 71 that can be horizontally slipped on the transverse arm 7, and the fixture 71 is provided with cooperation and rolls
Formula pile frame after fixture 71 is clamped on pile frame, can lock sliding laterally for fixture 71 to realize the bare terminal end slided up and down；Institute
The both ends for stating cantilever 8 are equipped with lifting lug 81 for steel wire penetrating, and stake ship hoist engine is easy to use to be controlled.Hanging device is logical
Fixture 71 is crossed to be connected with pile frame and fix detection device, can cooperation detection device moved up and down in pile frame, work is former
Reason is the same as pile driving barge pile frame pile gripper.
S3, mobile stake ship, make pile monkey return to initial stake position, manipulate hoist engine, so that lifting ancillary equipment is moved up and down, simultaneously
Mobile test device is placed on stake top to good position.Then the bolt between hanging device cantilever 8 and transverse arm 7 is unlocked
72, then hinged cantilever 8, cantilever 8 is removed from detection device, hanging device is made to be detached with detection device, finally puts on pile monkey,
Carry out pile bearing capacity detection.
Before S4, detection device lifting, the plume emission module of electronic detecting device in opening detecting device enables on mobile phone
Data collection station program APP, and enable the wireless connecting function of data collection station APP, electronic detecting device in connection,
And calibrate initial reading.Then recommendation is sequentially input or according to practical need according to engineering practice according to software operating process
The kinetic parameter to be chosen calls Hai Li (Hiley) pile driving formula, waits beginning to be tested.According to the electronic detecting device institute
The parameter value measured calculates test result using extra large sharp pile driving formula；
S5, it is completed, promotes pile monkey, by the rotation of cantilever 8 of hanging device to being connected with detection device, tighten bolt
72, the connection of the cantilever 8 and transverse arm 7 of hanging device is fixed, detection device is removed.
S6, it promotes pile monkey and is moved on to detection device in next foundation pile stake top to be measured using the hanging device, repeat to walk
Rapid S1 to S5 carries out the detection of next pile bearing capacity to be measured.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, therefore it is every without departing from the content of the technical scheme of the utility model, according to the technical essence of the utility model to implementing above
Any modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by example.
Claims (7)
1. a kind of bearing capacity of pile foundation detection device, which is characterized in that including main body, several auxiliary bodies and electronic detecting device；
One is provided on the end face of the main body can protrude movable contact site, and the electronic detecting device is arranged in the main body
Inside simultaneously abuts the contact site；
Several auxiliary bodies are arranged around the main body, and telescopic connector is provided between the auxiliary body and the main body, lead to
Cross the main body, the auxiliary body end face composition bearing capacity stress surface.
2. bearing capacity of pile foundation detection device according to claim 1, which is characterized in that the auxiliary body include the auxiliary body in upper layer and
Lower layer's auxiliary body is attached between the auxiliary body in the upper layer and the auxiliary body of lower layer by connecting hookup, and the hookup passes through connection
The connector connects the main body.
3. bearing capacity of pile foundation detection device according to claim 2, which is characterized in that the main body include upper layer main body and
Lower layer main body is attached between the upper layer main body and the lower layer main body by connecting the hookup, the main body and
The hookup between the auxiliary body is attached by connecting the connector.
4. according to claim 1-3 any one of them bearing capacity of pile foundation detection devices, which is characterized in that the main body is in cylinder
Shape, the auxiliary body are cylinder of the bottom surface in sector, and several auxiliary bodies are arranged around arrangement described using the main body as the center of circle
The side of main body forms round stress surface.
5. bearing capacity of pile foundation detection device according to claim 4, which is characterized in that the interior arc dia of the auxiliary body and institute
The diameter for stating main body is consistent, and several auxiliary bodies can surround an annulus and abut the side of the main body with the inner headed face of the annulus
Face.
6. according to claim 1-3 any one of them bearing capacity of pile foundation detection devices, which is characterized in that the contact site includes
One sliding block corresponds to the sliding block in the main body and offers the groove to move up and down for the sliding block.
7. a kind of bearing capacity of pile foundation detection device according to claim 6, which is characterized in that the electronic detecting device is
The test side protrusion of digital-display resiliometer, the digital-display resiliometer is arranged in the groove and abuts the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224973.7U CN207904993U (en) | 2018-02-08 | 2018-02-08 | A kind of bearing capacity of pile foundation detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224973.7U CN207904993U (en) | 2018-02-08 | 2018-02-08 | A kind of bearing capacity of pile foundation detection device |
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| CN207904993U true CN207904993U (en) | 2018-09-25 |
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| CN201820224973.7U Active CN207904993U (en) | 2018-02-08 | 2018-02-08 | A kind of bearing capacity of pile foundation detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179768A (en) * | 2018-02-08 | 2018-06-19 | 中交四航工程研究院有限公司 | A kind of bearing capacity of pile foundation detection device and its detection method |
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2018
- 2018-02-08 CN CN201820224973.7U patent/CN207904993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179768A (en) * | 2018-02-08 | 2018-06-19 | 中交四航工程研究院有限公司 | A kind of bearing capacity of pile foundation detection device and its detection method |
| CN108179768B (en) * | 2018-02-08 | 2023-12-26 | 中交四航工程研究院有限公司 | Pile foundation bearing capacity detection method |
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