CN107326888A - A kind of portable Large strain pile penetration measurement apparatus - Google Patents
A kind of portable Large strain pile penetration measurement apparatus Download PDFInfo
- Publication number
- CN107326888A CN107326888A CN201710735349.3A CN201710735349A CN107326888A CN 107326888 A CN107326888 A CN 107326888A CN 201710735349 A CN201710735349 A CN 201710735349A CN 107326888 A CN107326888 A CN 107326888A
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- pile
- laser
- foundation pile
- control point
- measurement apparatus
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- 238000005259 measurement Methods 0.000 title claims abstract description 34
- 230000035515 penetration Effects 0.000 title claims abstract description 33
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil 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)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention relates to a kind of portable Large strain pile penetration measurement apparatus, measurement for foundation pile (1) pile penetration, including control point (6), Laser emission receiving mechanism (2), laser reflection plate (3) and calculating indication mechanism (4), control point (6) is arranged on foundation pile (1) pile body, Laser emission receiving mechanism (2) is connected with calculating indication mechanism (4), on foundation pile (1) pile body that one in Laser emission receiving mechanism (2) and laser reflection plate (3) is connected to more than control point (6), another is arranged on beside foundation pile (1), and flushed with control point (6), Laser emission receiving mechanism (2) and laser reflection plate (3) are oppositely arranged.Compared with prior art, the present invention has the advantages that precision height, time of measuring is short, measurement efficiency is high, compact conformation, easy to operate.
Description
Technical field
Survey field is moved the invention belongs to foundation pile high stress, is related to a kind of portable Large strain pile penetration measurement apparatus.
Background technology
High-strain dynamic test method refers to using the Large strain state of transient state come test pile, discloses pile-soil system when close to the limit
Real work performance, so as to make accurate evaluation to pile integrity and bearing capacity.At present, this method is widely used in entirely
In state's pile measurement, especially the field condition discomfort such as harbour, bridge, transformer station is fit to do the engineering ground of static load test examination
In.High-strain dynamic test method has easy to operate, and detection time is short, the advantages of detection rates are fast, is that Shanghai is popular at present
A kind of detection method.
But current high-strain dynamic test method still suffers from a part of defect, the factor influence such as artificial overall qualities is larger, causes to hold
Carry power testing result application condition big, be especially in the presence of live pile penetration and measure not accurate enough, fitting parameter step-up error is larger
The problems such as.
Therefore the measurement of pile penetration is an important indicator of high strain dynamic test before and after being hammered in Large strain field test, it is closed
It is tied to the reliability of our high strain dynamic test result of the tests, although the measuring principle of pile penetration is relatively simple in high strain dynamic test experiment
It is single, but because weight clicks pile penetration typically between 2~6mm, accurately it is measured, step is very cumbersome, presently used
Instrument is：Theodolite, total powerstation, spirit level.The operation instrument and equipment such as theodolite or total powerstation needs specialty in pile penetration measurement
Human users or guidance, and measure very inconvenient with spirit level, it is necessary to spend many manpower and time, so that many detections are single
Even accident is paid little attention in measurement of the position to pile penetration.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of portable Large strain
Pile penetration measurement apparatus.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of portable Large strain pile penetration measurement apparatus, for the measurement of foundation pile pile penetration, including control point, laser hair
Penetrate receiving mechanism, laser reflection plate and calculate indication mechanism, described control point is arranged on Under Pile, described laser hair
Penetrate receiving mechanism and be connected with calculating indication mechanism, one in Laser emission receiving mechanism and laser reflection plate is connected to control point
More than Under Pile with, another is arranged on beside foundation pile, and is flushed with control point, described Laser emission receiving mechanism and
Laser reflection plate is oppositely arranged.
Preferably, one in described Laser emission receiving mechanism and laser reflection plate is connected by angle adjusting mechanism
With Under Pile, another is arranged on beside foundation pile by angle adjusting mechanism, during measurement, by adjusting angle adjusting mechanism
Make the laser that Laser emission receiving mechanism is sent vertical with the reflecting surface of laser reflection plate.
Preferably, described angle adjusting mechanism is ball-shaped cloud platform.
Preferably, described ball-shaped cloud platform is provided with level meter.
Preferably, during measurement, the laser that Laser emission receiving mechanism is sent is towards vertical direction, the reflection of laser reflection plate
The vertical distance at face and control point is 5~15 times of pile penetration.
Preferably, described laser reflection plate is connected to Under Pile, and Laser emission receiving mechanism is arranged on by foundation pile
Side, and the distance of Laser emission receiving mechanism and foundation pile is more than 1m.
Preferably, described calculating indication mechanism receives the signal of Laser emission receiving mechanism, according to laser before and after hammering
Foundation pile pile penetration is calculated and be shown in the distance change of transmitting and reflection.
Preferably, described control point is to be fixed on the expansion bolt with Under Pile.
Compared with prior art, the invention has the advantages that：
(1) present invention measures the pile penetration of foundation pile by means of laser ranging, with conventional test methodologies (using theodolite,
Total powerstation, spirit level are measured) to compare, precision is high, and greatly enhances efficiency, saves manpower and time,
Various complicated field conditions can be applicable, applicability is wide and simple to operate, and reading etc. is directly obtained by calculating indication mechanism,
Professional training need not be carried out to user, be applicable crowd wide.
(2) quickly Laser emission receiving mechanism and laser reflection plate can be aligned by angle adjusting mechanism, especially,
Angle adjusting mechanism uses ball-shaped cloud platform, i.e. commercially available on the market, and not only angular adjustment is convenient, and possesses angle locking work(
Can, by level meter, it can easily make laser towards vertical direction.
(3) relative to the equipment used in conventional test methodologies, compact conformation of the present invention is easy to carry, and easy for installation.
(4) laser reflection plate is connected to Under Pile, and makes the distance of Laser emission receiving mechanism and foundation pile big
In 1m, destruction and interference of the vibrations produced during hammering to Laser emission receiving mechanism can be avoided.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure, 1 is foundation pile, and 2 be Laser emission receiving mechanism, and 3 be laser reflection plate, and 4 is calculate indication mechanism, and 5 be to connect
Extension bar, 6 be control point, and 7 be weight, and 8 be angle adjusting mechanism.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of portable Large strain pile penetration measurement apparatus, as shown in figure 1, the measurement for foundation pile (1) pile penetration, including
Control point (6), Laser emission receiving mechanism (2), laser reflection plate (3) and calculating indication mechanism (4), described control point (6)
It is arranged on foundation pile (1) pile body, for example with the expansion bolt being fixed on foundation pile (1) pile body.Laser emission receiving mechanism (2)
It is connected with calculating indication mechanism (4), one in Laser emission receiving mechanism (2) and laser reflection plate (3) is connected to control point
(6) on foundation pile (1) pile body more than, another is arranged on beside foundation pile (1), and is flushed with control point (6), described laser hair
Penetrate receiving mechanism (2) and laser reflection plate (3) is oppositely arranged.
In the present embodiment, laser reflection plate (3) is arranged on angle adjusting mechanism (8), and is connected to by connecting rod (5)
On foundation pile (1) pile body, it is other that Laser emission receiving mechanism (2) is arranged on foundation pile (1) by another by angle adjusting mechanism (8)
Side, the distance of Laser emission receiving mechanism (2) and foundation pile (1) is more than 1m.During measurement, made by adjusting angle adjusting mechanism (8)
The laser that Laser emission receiving mechanism (2) is sent is vertical with the reflecting surface of laser reflection plate (3).Angular adjustment in the present embodiment
Mechanism (8) is ball-shaped cloud platform.During measurement, the laser that regulation Laser emission receiving mechanism (2) is sent swashs towards vertical direction, control
The vertical distance at the reflecting surface of light reflecting board (3) and control point (6) is 5~15 times of pile penetration (Δ h is represented in Fig. 1), in order to
Convenient regulation transreceiver structure (2) and the angle of laser reflection plate, ball-shaped cloud platform are provided with level meter.Actual measurement process
In, Laser emission direction may not be vertical direction, as long as ensureing that the laser of transmitting is vertical with the reflecting surface of laser reflection plate
, converted by angle, you can calculate pile penetration.But it is for convenience, general still to make laser in measurement towards vertically
Direction.
During test, calculate indication mechanism (4) and receive the signals of Laser emission receiving mechanism (2), hammering according to weight 7 before with
Foundation pile (1) pile penetration, measurement accuracy to 0.1mm, during measurement is calculated and be shown in Laser emission and the change of the distance of reflection after hammering
Between greatly reduce compared to conventional method, and do not need professional can measure.
Claims (8)
1. a kind of portable Large strain pile penetration measurement apparatus, the measurement for foundation pile (1) pile penetration, it is characterised in that including
Control point (6), Laser emission receiving mechanism (2), laser reflection plate (3) and calculating indication mechanism (4), described control point (6)
It is arranged on foundation pile (1) pile body, described Laser emission receiving mechanism (2) is connected with calculating indication mechanism (4), and Laser emission connects
Receive on one in mechanism (2) and laser reflection plate (3) foundation pile (1) pile body being connected to more than control point (6), another setting
Beside foundation pile (1), and flushed with control point (6), described Laser emission receiving mechanism (2) and laser reflection plate (3) are relative
Set.
2. a kind of portable Large strain pile penetration measurement apparatus according to claim 1, it is characterised in that described laser
One in transreceiver structure (2) and laser reflection plate (3) is connected on foundation pile (1) pile body by angle adjusting mechanism (8),
Another is arranged on beside foundation pile (1) by angle adjusting mechanism (8), during measurement, makes to swash by adjusting angle adjusting mechanism (8)
The laser that light transmitter-receiver structure (2) is sent is vertical with the reflecting surface of laser reflection plate (3).
3. a kind of portable Large strain pile penetration measurement apparatus according to claim 2, it is characterised in that described angle
Governor motion (8) is ball-shaped cloud platform.
4. a kind of portable Large strain pile penetration measurement apparatus according to claim 3, it is characterised in that described is spherical
Head is provided with level meter.
5. a kind of portable Large strain pile penetration measurement apparatus according to claim 4, it is characterised in that during measurement, swashs
The laser that light transmitter-receiver structure (2) is sent is towards vertical direction, and the reflecting surface of laser reflection plate (3) is perpendicular with control point (6)
To 5~15 times that distance is pile penetration.
6. a kind of portable Large strain pile penetration measurement apparatus according to claim 1, it is characterised in that described laser
Reflecting plate (3) is connected on foundation pile (1) pile body, and Laser emission receiving mechanism (2) is arranged on beside foundation pile (1), and laser is sent out
The distance for penetrating receiving mechanism (2) and foundation pile (1) is more than 1m.
7. a kind of portable Large strain pile penetration measurement apparatus according to claim 1, it is characterised in that described calculating
Indication mechanism (6) receives the signal of Laser emission receiving mechanism (2), is changed according to Laser emission before and after hammering and the distance of reflection
Foundation pile (1) pile penetration is calculated and be shown.
8. a kind of portable Large strain pile penetration measurement apparatus according to claim 1, it is characterised in that described control
Point (6) is the expansion bolt being fixed on foundation pile (1) pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710735349.3A CN107326888A (en) | 2017-08-24 | 2017-08-24 | A kind of portable Large strain pile penetration measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710735349.3A CN107326888A (en) | 2017-08-24 | 2017-08-24 | A kind of portable Large strain pile penetration measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107326888A true CN107326888A (en) | 2017-11-07 |
Family
ID=60224818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710735349.3A Pending CN107326888A (en) | 2017-08-24 | 2017-08-24 | A kind of portable Large strain pile penetration measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107326888A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264505A (en) * | 2004-03-17 | 2005-09-29 | Taisei Corp | Construction management method for pile driving |
| CN1825087A (en) * | 2005-02-25 | 2006-08-30 | 株式会社地盘试验所 | Pseudostatic pile load testing method |
| CN103697827A (en) * | 2013-11-26 | 2014-04-02 | 中南大学 | Laser ranging based large-section tunnel convergence and deformation measuring equipment |
| CN207228088U (en) * | 2017-08-24 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of portable Large strain pile penetration measuring device |
-
2017
- 2017-08-24 CN CN201710735349.3A patent/CN107326888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264505A (en) * | 2004-03-17 | 2005-09-29 | Taisei Corp | Construction management method for pile driving |
| CN1825087A (en) * | 2005-02-25 | 2006-08-30 | 株式会社地盘试验所 | Pseudostatic pile load testing method |
| CN103697827A (en) * | 2013-11-26 | 2014-04-02 | 中南大学 | Laser ranging based large-section tunnel convergence and deformation measuring equipment |
| CN207228088U (en) * | 2017-08-24 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of portable Large strain pile penetration measuring device |
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