CN105735379B - A kind of Pile bottom sediment detection means - Google Patents
A kind of Pile bottom sediment detection means Download PDFInfo
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- CN105735379B CN105735379B CN201610229244.6A CN201610229244A CN105735379B CN 105735379 B CN105735379 B CN 105735379B CN 201610229244 A CN201610229244 A CN 201610229244A CN 105735379 B CN105735379 B CN 105735379B
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- probe
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- spring
- hydraulic cylinder
- cantilever
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of Pile bottom sediment detection means, including cantilever, detection box, probe and hydraulic cylinder, detection box is located at cantilevered distal end, and hydraulic cylinder is in detection box, and probe is on the outer face of piston, the diameter parallel of probe and piston.Simple in construction, small volume of the invention, have precision it is high, it is easy to detect, be easily carried.
Description
Technical field
The present invention relates to detection technique field, more particularly to a kind of Pile bottom sediment detection means.
Background technology
Pile bottom sediment is an important factor for influenceing bearing capacity of pile foundation.Blocked up sediment will produce " cushion " effect, so as to drop
Low pile bearing capacity, increase pile body sedimentation.Research shows, when sediment thickness increasing, and during remitted its fury, end resistance maximum loss
Up to more than 80%, and sediment is thicker, and bearing capacity of pile foundation loss is bigger.Cast-in-situ bored pile bottom hole sediment thickness is as pore-forming matter
One important indicator of amount, and its control and measurement measure are to ensure the pass of Construction Quality for Bore Filling Pile and bearing capacity of pile foundation
One of key measure.Therefore existing respective country standards and norms clearly require to sediment thickness control.When stake to rub
When power is main, sediment allows thickness to cannot be greater than 100mm, when stake is using bottom bearing to be main, cannot be greater than 50mm；Held for end
Stake, its bottom hole sediment thickness are not more than 50mm.It is not more than 150mm for Piles for Friction Piles.Existing sediment thickness detection method is main
For " weight method ", rely primarily on engineer's feel and experience carry out judgement sediment thickness, the precision of detection it is difficult to ensure that.
The content of the invention
The present invention is directed to the deficiency of existing sediment detection technique, proposes a kind of sediment thickness detection instrument of cast-in-situ bored pile
And detection method, it can accurately measure stake holes bottom sediment thickness.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of Pile bottom sediment detection means, including cantilever, detection box, probe and hydraulic cylinder, the detection
Box is located at cantilevered distal end, the hydraulic cylinder in detection box, the probe on the outer face of piston, probe and piston
Diameter parallel..
Further, in addition to controller, the hydraulic cylinder electrically connect with controller.
Further, the controller includes display screen, and the detection box side is mounted with minisize pick-up head, miniature video camera
With detection cassette bottom face in same level, the minisize pick-up head electrically connects head with controller.
Further, the probe front is provided with pressure sensor, and the pressure sensor electrically connects with controller.
Further, the piston or probe are provided with displacement transducer, and institute's displacement sensors electrically connect with controller.
Further, the cantilever is scalable.
Further, spring is provided with hydraulic cylinder, the spring one end is connected with piston, the spring other end and cylinder body phase
Even, the spring be arranged in parallel with probe, and spring is Hookean spring.
Further, the cantilever top is connected with the steel strand wires of unwheeling.Further, the spring is located under cylinder body
End.
Compared with prior art, the invention has the advantages that：
Simple in construction, small volume of the invention, have the advantages that precision it is high, it is easy to detect, be easily carried.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation that box is detected when the middle probe of embodiment 2 does not extend out；
Fig. 3 is the structural representation that box is detected when the middle probe of embodiment 2 stretches out；
Fig. 4 is the structural representation that box is detected when the middle probe of embodiment 4 does not extend out；
Fig. 5 is the structural representation that box is detected when the middle probe of embodiment 4 stretches out；
In figure：1- unwheelings, 2- cantilevers, 3- detections box, 4- probes, 5- minisize pick-up heads, 6- controllers, 7- pistons, 8- cylinders
Body, 9- springs.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
Embodiment 1
As shown in figure 1, Pile bottom sediment detection means disclosed in the present embodiment, including cantilever 2, detection box 3,
Probe 4 and hydraulic cylinder, detection box 3 are located at the end of cantilever 2, and for hydraulic cylinder in detection box 3, probe 4 is located at the outer face of piston 7
On, the diameter parallel of probe 4 and piston 7..Preferably, when hydraulic cylinder does not work, probe 4 also in detection box 3 in,
When hydraulic cylinder is started working, the ability of probe 4 removes from detection box.Further, detection means also includes controller 6, hydraulic cylinder
Electrically connected with controller 6.Preferably, piston 7 or probe 4 are provided with displacement transducer, displacement transducer and the Electricity Federation of controller 6
Connect, the depth of the displacement of probe 4, i.e. sediment is known by displacement transducer.
Further, the cantilever 2 is scalable, it is preferred that cantilever 2 is level Four telescopic arm；Cantilever 2 can also be telescopic
Hydraulic cylinder, further, the top of cantilever 2 are connected with the steel strand wires of unwheeling 1, and steel strand wires and the hook on driving are connected, and detect and fill
Put and moved with unwheeling 1.Winch may be selected in unwheeling 1.
In use, after the completion of borehole and clinkerer make, 1 apparatus of the present invention are moved into aperture by driving, put down slowly
Cantilever 2, when the bottom of probe 4 reaches sediment surface, stop decentralization cantilever 2, hydraulic cylinder is started working, and hydraulic cylinder is driven with constant force
Piston 7 moves down, and probe 4 moves down with piston 7, when probe 4 reaches bottom hole, because the active force of bottom hole is more than hydraulic pressure
The thrust of the piston 7 of cylinder, piston 7 stop movement, read the displacement of probe, this displacement is the depth of sediment.The position of probe
Moving can be read by setting scale on probe, can also be measured by ultrasonic unit.
Embodiment 2
As shown in Figure 3,4, the present embodiment and the difference of embodiment 1 are：Controller 6 includes display screen, detection box 3 side
Minisize pick-up head 5 is mounted with, minisize pick-up head 5 is with detecting the bottom surface of box 3 in same level, minisize pick-up head 5 and controller 6
Electrically connect.Display screen can show minisize pick-up head finding picture, and whether judgment means front end reaches sediment surface.In use and read
Take probe test depth.
In use, after the completion of borehole and clinkerer make, 1 apparatus of the present invention are moved into aperture by driving, put down slowly
Cantilever 2, is observed by display screen, when the bottom of probe 4 reaches sediment surface, stops decentralization cantilever 2, and hydraulic cylinder is started working,
Hydraulic cylinder is moved down with constant force driving piston 7, and probe 4 moves down with piston 7, when probe 4 reaches bottom hole, due to bottom hole
Active force be more than hydraulic cylinder piston 7 thrust, piston 7 stops movement, and displacement transducer measures the displacement of probe, this position
Shifting is the depth of sediment.
Embodiment 3
The present embodiment and the difference of embodiment 1 or 2 are：The front end of probe 4 is provided with pressure sensor, pressure sensor and control
Device 6 processed electrically connects.
In use, after the completion of borehole and clinkerer make, 1 apparatus of the present invention are moved into aperture by driving, put down slowly
Cantilever 2, hydraulic cylinder are started working, and hydraulic cylinder is moved down with constant force driving piston 7, and probe 4 moves down with piston 7, now
Pressure sensor influence value is 0, when pressure sensor influence value position 0, illustrates that probe has contacted sediment, makees this when
For zero displacement point；When pressure sensor influence value reaches setting value, now probe 4 reaches bottom hole, and hydraulic cylinder is stopped, position
Displacement sensor measures the displacement of probe, and this displacement is the depth of sediment.
Embodiment 4
As shown in Figure 4,5, the present embodiment and the difference of embodiment 1,2 or 3 are：Spring 9, spring 9 are provided with hydraulic cylinder
One end is connected with piston 7, and the other end of spring 9 is connected with cylinder body 8, and spring 9 be arranged in parallel with probe 4, and spring 9 is Hookean spring.
Further, spring 9 is located at the lower end of cylinder body 8.Because hydraulic cylinder is that straight down, piston 7 has certain gravity, spring 9
Piston 7 can be given to apply elastic force with the gravity of dummy piston 7.The gravity of other modes resistance piston 7 can certainly be used, than
As the frictional force between piston 7 and cylinder body 8 is suitable with the gravity of piston 7.It is downward in piston 7 because spring 9 is Hookean spring
In motion process, the elastic force of spring 9 can be calculated by the deformation quantity of spring 9, and then learn what hydraulic cylinder applied to probe
The size of power, when probe 4 reaches bottom hole, because the active force of bottom hole is more than the thrust of piston 7, piston 7 stops movement, reads
The displacement of probe, this displacement are the depth of sediment；Or when this power reaches setting value, stop pump oil, read probe 4
Displacement, piston 7 resets in the presence of spring 9.
Simple in construction, small volume of the invention, have the advantages that precision it is high, it is easy to detect, be easily carried.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those skilled in the art can make various corresponding changes and deformation according to the present invention, but these change and become accordingly
Shape should all belong to the protection domain of appended claims of the invention.
Claims (3)
- A kind of 1. Pile bottom sediment detection means, it is characterised in that:Including cantilever (2), detection box (3), probe (4) And hydraulic cylinder, the detection box (3) are located at cantilever (2) end, in detection box (3), the probe (4) sets the hydraulic cylinder In on the outer face of piston (7), the diameter parallel of probe (4) and piston (7)；Also include controller (6), the hydraulic cylinder and control Device (6) processed electrically connects, and probe (4) front end is provided with pressure sensor, and the pressure sensor electrically connects with controller (6), The piston or probe (4) are provided with displacement transducer, and institute's displacement sensors electrically connect with controller (6), the cantilever (2) For level Four telescopic arm；The controller (6) includes display screen, and described detection box (3) side is mounted with minisize pick-up head (5), micro- With detection box (3) bottom surface in same level, the minisize pick-up head (5) electrically connects type camera (5) with controller (6), It is connected at the top of the cantilever (2) with the steel strand wires of unwheeling (1).
- 2. Pile bottom sediment detection means according to claim 1, it is characterised in that：Set in the hydraulic cylinder There is spring (9), described spring (9) one end is connected with piston (7), and spring (9) other end is connected with cylinder body (8), the spring (9) It is be arranged in parallel with probe (4), spring (9) is Hookean spring.
- 3. Pile bottom sediment detection means according to claim 2, it is characterised in that：The spring (9) sets In the lower end of cylinder body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229244.6A CN105735379B (en) | 2016-04-13 | 2016-04-13 | A kind of Pile bottom sediment detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610229244.6A CN105735379B (en) | 2016-04-13 | 2016-04-13 | A kind of Pile bottom sediment detection means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735379A CN105735379A (en) | 2016-07-06 |
| CN105735379B true CN105735379B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610229244.6A Active CN105735379B (en) | 2016-04-13 | 2016-04-13 | A kind of Pile bottom sediment detection means |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871768A (en) * | 2017-04-17 | 2017-06-20 | 云南滇源建设有限公司 | A kind of hydraulic tunnel grout hole inspecting hole device |
| CN108360579A (en) * | 2018-02-08 | 2018-08-03 | 中铁大桥局集团有限公司 | Steel-pipe pile hole subsoil plug top surface flatness and sediment thickness measuring device and method |
| CN109518738B (en) * | 2019-01-21 | 2023-09-22 | 东华理工大学 | Sediment thickness pre-detection instrument and use method thereof |
| CN114775611A (en) * | 2022-04-24 | 2022-07-22 | 贵州强胜基础工程技术有限公司 | Construction method for sediment treatment and reinforcement of building pile foundation bottom |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08302722A (en) * | 1995-05-02 | 1996-11-19 | Fujita Corp | Inspecting method of pile foundation |
| CN1107771C (en) * | 1996-12-27 | 2003-05-07 | 辉固国际(香港)有限公司 | Slurry and macadam determining apparatus |
| JP3880765B2 (en) * | 2000-02-09 | 2007-02-14 | 財団法人鉄道総合技術研究所 | Underground optical fiber sensor and optical fiber sensor system |
| CN2695488Y (en) * | 2004-01-08 | 2005-04-27 | 张惇 | Device for measuring thickness of pile hole sediment |
| CN104179492B (en) * | 2014-09-09 | 2016-10-26 | 湖南高速铁路职业技术学院 | Stake holes sediment measures system |
| CN204212185U (en) * | 2014-10-21 | 2015-03-18 | 马鞍山十七冶工程科技有限责任公司 | A kind ofly revolve the sediment thickness checkout gear dug at the bottom of pore-forming hole |
| CN204238266U (en) * | 2014-10-24 | 2015-04-01 | 中建海峡建设发展有限公司 | For detecting the combination plummet of stake holes sediment thickness |
| CN204212189U (en) * | 2014-11-14 | 2015-03-18 | 广西建工集团第二建筑工程有限责任公司 | For pound piling with hole slurry protected sediment layer thickness determinator |
| CN204401664U (en) * | 2014-12-26 | 2015-06-17 | 中国建筑西南勘察设计研究院有限公司 | A kind of castinplace pile pile bottom sediment and pile end groundwork checkout gear |
| CN205591264U (en) * | 2016-04-13 | 2016-09-21 | 西南石油大学 | Sediment detection device at bottom of stake of drilling bored concrete pile |
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- 2016-04-13 CN CN201610229244.6A patent/CN105735379B/en active Active
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