CN207741663U - A kind of device of anchor pole anchor head displacement measurement - Google Patents
A kind of device of anchor pole anchor head displacement measurement Download PDFInfo
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- CN207741663U CN207741663U CN201820087941.7U CN201820087941U CN207741663U CN 207741663 U CN207741663 U CN 207741663U CN 201820087941 U CN201820087941 U CN 201820087941U CN 207741663 U CN207741663 U CN 207741663U
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- dial gauge
- steel pipe
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Abstract
A kind of device of anchor pole anchor head displacement measurement described in the utility model.The measuring device is made of center rest and three dial gauges being set on center rest, the center rest is to assemble holder by connection fastener by vertical steel pipe and lateral steel pipe, its described three dial gauge is mounted on the lateral steel pipe of center rest respectively by magnetic force dial framework, the magnetic force dial framework is made of magnetic force mounting base and dial gauge adjustment frame, the dial gauge is mounted on dial gauge adjustment frame, and under the action of percentage table adjustment frame, the outer surface flat contact of the measuring rod measurement end and tension ground tackle to be measured of each dial gauge, and measuring rod is vertical with tension ground tackle outer surface to be measured.The utility model is simple in structure, can effectively improve displacement measurement accuracy, and measurement data is stable, measurement process is efficient and convenient, and single anchor rod complete test process measurement can be completed in once mounting, to improve experiment work efficiency, the quality of guarantee test achievement.
Description
Technical field
The utility model is related to geotechnical engineering fields, and in particular to a kind of device of anchor pole anchor head displacement measurement.
Background technology
In geotechnical engineering field, such as foundation pit and slope retaining, anchor pole is a kind of common supporting means.Anchor pole is by tension
One end (anchoring section) of rod piece is fixed in good ground, and the other end is linked with engineering structure, to bear due to soil pressure
Power, water pressure etc. are applied to the thrust of structures, thus using the anchor force on stratum to maintain the steady of structures (or rock-soil layer)
It is fixed.According to related specification requirement, live pullout tests must be carried out before the construction of every anchor bolt works and after construction, are applied with distinguishing
Before work or can the anchor pole constructed of detection meet the performance of design requirement.Wherein determine anchor pole pullout tests quality of achievement quality
One of key job be the accurate displacement for measuring anchor head during experiment, if prestressed anchor fundamental test is using being classified
The criterion of failure two of which of Load-unload method, anchor pole is：(1) the anchor head displacement increment that rear stage load generates is met or exceeded
When the displacement increment twice that previous stage load generates；(2) anchor head displacement is unstable.(fundamental test checks and accepts examination to anchor pole pullout tests
Test) overall process load actions at different levels under be required for the corresponding anchor head displacement of Accurate Determining, and drawn according to test result
Anchor pole load-displacement curve.
Operating process is put into practice in pullout tests, at present the method for normalizing of anchor head displacement measurement, is in tested person anchor pole
Predetermined distance within the scope of set reference stake, set up datum line beam, then fixed large displacement sensor or long range dial gage are installed
Measure anchor pole anchor head displacement.This method specification, measurement displacement are precise and stable, but set reference stake, set up datum line beam
Operating process is cumbersome, is unfavorable for saving material and promotes the duration.And most of anchor pole pullout tests are in practical operation at present
Often lack of standardization, the method for measuring anchor pole anchor head displacement is more rough, and common method has：(1) tape measure jack is used
The displacement of piston, accuracy of reading is low, and finding speed is slow, and is difficult to ensure tape measure fitting jack piston axial displacement direction；(2)
Using the displacement of vernier caliper measurement jack piston, precision is higher, but finding speed is slower, and is easily shaken by jack cylinder
Influence, cause survey read data it is unstable；(3) it uses dial gauge using jack cylinder side wall as fixed pedestal, passes through survey
Amount tension ground tackle displacement Simultaneous Determination anchor head displacement, the precision height of dial gauge, convenient reading, but due to dial gauge pedestal position
In jack cylinder side wall, and shaken in the jack course of work it is larger, under single load jack by vibrations restore it is static when
Between it is longer, cause dial gauge to survey and read that data are unstable, error is big and time-consuming.
Invention content
The utility model is insufficient according to prior art, provides a kind of anchor pole anchor head simple in structure, easy to make, practical
The device of displacement measurement, the device measure multigroup anchor head displacement data by the dial gauge of different parts and are averaged, can be effective
Ground improves displacement measurement accuracy, meets the requirement of measurement data stabilization, and entire measurement process is efficient and convenient, saving material,
The duration is saved, and single anchor rod complete test process measurement can be completed in once mounting, to improve experiment work efficiency, ensured
The quality of test result.
Technical solution provided by the utility model：A kind of device of the anchor pole anchor head displacement measurement, it is characterised in that：Institute
It states measuring device to be made of center rest and three dial gauges being set on center rest, the center rest is by vertical
Steel pipe and lateral steel pipe assemble holder by connection fastener, and three dial gauges are mounted on by magnetic force dial framework respectively
On the lateral steel pipe of center rest, the magnetic force dial framework is made of magnetic force mounting base and dial gauge adjustment frame, the dial gauge
On dial gauge adjustment frame, and under the action of percentage table adjustment frame, the measuring rod measurement end of each dial gauge with wait for
The outer surface flat contact of tension ground tackle is surveyed, and measuring rod is vertical with tension ground tackle outer surface to be measured.
The utility model preferably technical solution：The center rest is that two vertical steel pipes and two lateral steel pipes pass through
The intersecting parallels holder that connection fastener assembles；One of them is mounted on upper lateral steel pipe three dial gauges, and in addition two
It is a to be mounted on lower lateral steel pipe, and the measuring rod of three dial gauges and the contact point of tension ground tackle outer surface to be measured and to be measured
It draws anchorage outer surface central point apart from equal, is formed between two neighboring contact point and tension ground tackle outer surface to be measured central point
120 ° of angles.
The utility model preferably technical solution：The dial gauge adjustment frame of each magnetic force dial framework is mutually cut with scissors by two
The connecting rod composition connect, wherein a connecting rod is movably hinged with magnetic force mounting base, another connecting rod is movably hinged with dial gauge, and
Each hinged place is equipped with fastening bolt, each dial gauge can under the action of corresponding dial gauge adjustment frame adjustment direction and away from
From.
The utility model preferably technical solution：The center rest is attached in tension ground tackle to be measured by vertical steel pipe build-in
In foundation soil after nearly smooth compacting.
The utility model preferably technical solution：Three dial gauges are inhaled by the magnet in its magnetic force mounting base respectively
It is attached on the lateral steel pipe of center rest.
The utility model preferably technical solution：The precision of three dial gauges is 0.01mm, and range, which meets experiment, to be wanted
It asks.
The utility model is lack of standardization in practical operation for current most of anchor pole pullout tests, causes accuracy of reading
Low, finding speed is slowly, survey reading data are unstable or the actual displacement of not anchor head is moved due to surveying read bit indirectly；And code requirement side
Although method measures anchor pole anchor head displacement precision height, stable reading, actual mechanical process is cumbersome, is unfavorable for promoting duration etc.
Defect is designed, and the measuring device in the utility model has the following advantages：
(1) the dial gauge fixed pedestal in the utility model is connected and fixed the steady of composition using vertically and horizontally steel pipe by fastener
Fixed rack uses the longitudinal steel pipe of manually or mechanically hammering to be embedded in the enough depth of the soil body, ensures after only needing the smooth compacting foundation soil body
Steel pipe support is stablized uprightly, and dial gauge is firmly adsorbed on center rest by magnet, and operating process is simple and convenient；
(2) the anchor head displacement measuring device of the utility model, the measuring rod bar of three displacement measurement dial gauge structures are utilized
Head and the contact point of tension ground tackle outer surface and anchorage outer surface central point apart from it is equal, be mutually about anchorage outer surface central point
120 ° of angles measure anchor head displacement by the dial gauge of different parts and are averaged, can greatly reduce or eliminate accidental error,
It improves to survey and reads accuracy.
The utility model overall structure is simple, easy to use, in measurement process, is effectively improved displacement measurement essence
Degree, measurement data is stable, measurement process is efficient and convenient, and saves material, saves the duration, it is only necessary to which once mounting can be complete
At single anchor rod complete test process measurement, to improve experiment work efficiency, the quality of guarantee test achievement.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the positions A enlarged diagram in Fig. 1；
Fig. 3 is the structural schematic diagram of magnetic force dial framework in the utility model；
Fig. 4 is the use state diagram of the utility model；
Fig. 5 is that dial gauge measures club head and tension ground tackle surface contact point schematic diagram in the utility model.
In figure, 1-center rest, 1-1-vertical steel pipe, 1-2-transverse direction steel pipe, 2-tension ground tackles to be measured, 3-connections
Fastener, 4-dial gauges, 5-magnetic force dial frameworks, 5-1-magnetic force mounting base, 5-2-dial gauge adjustment frame, 5-3-fastening bolt,
6-foundation soils, 7-anchor holes, 8-jack, 9-anchor poles (rope), 10-anchor beams, 11-backing plates.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings.As shown in Figure 1, Figure 2 and Figure 4, a kind of anchor shown in
Bar anchor head displacement measuring device, it is characterised in that：The measuring device is by center rest 1 and to be set on center rest 1
Three dial gauges 4 form, and the center rest 1 is that two vertical steel pipe 1-1 and two transverse direction steel pipe 1-2 pass through connection fastener 3
The intersecting parallels holder assembled, the center rest 1 are smooth nearby in tension ground tackle 2 to be measured by vertical steel pipe 1-1 build-ins
In foundation soil 6 after compacting.Three dial gauges 4 are mounted on the lateral steel pipe of center rest 1 by magnetic force dial framework 5 respectively
On 1-2, one of them is mounted on upper lateral steel pipe, other two is mounted on lower lateral steel pipe.As shown in figure 5, three hundred
Divide the measuring rod 4-1 of table 4 and the contact point of 2 outer surface of tension ground tackle to be measured and 2 outer surface central point distance of tension ground tackle to be measured
It is equal, 120 ° of angles are formed between 2 outer surface central point of two neighboring contact point and tension ground tackle to be measured.
As shown in Figures 2 and 3, the magnetic force dial framework 5 is made of magnetic force mounting base 5-1 and dial gauge adjustment frame 5-2, institute
Dial gauge 4 is stated on dial gauge adjustment frame 5-2, and under the action of dial gauge adjustment frame 5-2, the survey of each dial gauge 4
The outer surface flat contact of gauge rod 4-1 measurement ends and tension ground tackle 2 to be measured, and measuring rod 4-1 and 2 outer surface of tension ground tackle to be measured
Vertically.The connecting rod that the dial gauge adjustment frame 5-2 of each magnetic force dial framework 5 is hinged by two forms, wherein a company
Bar is movably hinged with magnetic force mounting base 5-1, and another connecting rod is movably hinged with dial gauge 4, and is equipped with fastening in each hinged place
Bolt 5-3, each dial gauge 4 can under the action of corresponding dial gauge adjustment frame 5-2 adjustment direction and distance, described three hundred
Table 4 is divided firmly to be adsorbed on the lateral steel pipe 1-2 of center rest 1 by the magnet on its magnetic force mounting base 5-1 respectively, by each
From adjustment frame can be rotated close in 360 ° of angular ranges, fastening bolt can fixes after tightening between connecting rod, connecting rod and percentage
Relative position between table 4, between connecting rod and magnetic force mounting base 5-1, and adjust, stationary phase answers the position and orientation of dial gauge 4.
The precision of three dial gauges 4 is 0.01mm, and range meets the test requirements document device.
When the utility model specific works, steps are as follows：
(1) first that the installations such as anchor pole pullout tests tension structure jack 8, anchorage, backing plate 11 are in place, smooth compacting foundation
Using longitudinal steel pipe 1-1 insertion enough depth of the soil body are manually or mechanically hammered after the soil body 6, ensure that steel pipe support is stable, upright, institute
Stating center rest facade should be appropriate at a distance from 2 outer surface of tension ground tackle, and the height of lateral steel pipe 1-2 should be appropriate, to ensure
Three displacement measurement dial gauges structure can connect to the center rest and 2 outer surface of tension ground tackle；
(2) preloading makes experiment anchor pole 9 be in critical stress, then unloads；As shown in figure 4, by three dial gauges 4
It is firmly adsorbed on center rest 1 by magnetic force dial framework 5 respectively, and each dial gauge 4 is adjusted by dial gauge adjustment frame 5-2
Position and angle, finally make measuring rod 4-1 head flat contacts 2 outer surface of tension ground tackle to be measured of three dial gauges 4, and
And ensure that the head of measuring rod 4-1 is vertical with 2 outer surface of tension ground tackle to be measured, as shown in figure 5, three measuring rod 4-1 heads with
The contact point of tension ground tackle (15) outer surface should be with anchorage outer surface central point apart from equal, mutual about anchorage outer surface central point
At 120 ° of angles；
After (3) three displacement measurement dial gauges 4 confirm that installation fixes, meter parameter is errorless after testing, by code requirement
It carries out anchor pole pullout tests and reads corresponding anchor head displacement, wherein each anchor head displacement should take three displacement measurement dial gauges
The average value of the anchor head displacement measured simultaneously.
The utility model make it is simple, conveniently, it is practical, anchor pole pullout tests are needed accurate to measure anchor head displacement and mesh
Preceding general assay method utilizes the anchor head position of the utility model compared with the situation rough, data are unstable or continuous mode is complicated
Measuring system measures anchor head displacement by the dial gauge of different parts and is averaged, can effectively improve displacement measurement accuracy,
Measurement data is stable, measurement process is efficient and convenient, and it is complete that single anchor rod can be completed in saving material, saving duration, and once mounting
Process measurement is tested, to improve experiment work efficiency, the quality of guarantee test achievement.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (6)
1. a kind of device of anchor pole anchor head displacement measurement, it is characterised in that：The measuring device is by center rest (1) and setting
Three dial gauges (4) composition on center rest (1), the center rest (1) are by vertical steel pipe (1-1) and lateral steel pipe
(1-2) assembles holder by connection fastener (3), and three dial gauges (4) are mounted on by magnetic force dial framework (5) respectively
On the lateral steel pipe (1-2) of center rest (1), the magnetic force dial framework (5) is by magnetic force mounting base (5-1) and dial gauge adjustment frame
(5-2) is formed, and the dial gauge (4) is mounted on dial gauge adjustment frame (5-2), and in the effect of dial gauge adjustment frame (5-2)
Under, the outer surface flat contact of measuring rod (4-1) measurement end and tension ground tackle to be measured (2) of each dial gauge (4), and measuring rod
(4-1) is vertical with tension ground tackle to be measured (2) outer surface.
2. a kind of device of anchor pole anchor head displacement measurement according to claim 1, it is characterised in that：The center rest
(1) it is intersecting parallels holder that the lateral steel pipe (1-2) of two vertical steel pipes (1-1) and two is assembled by connection fastener (3)；
One of them is mounted on upper lateral steel pipe three dial gauges (4), other two is mounted on lower lateral steel pipe, and three
The measuring rod (4-1) of dial gauge (4) and the contact point of tension ground tackle to be measured (2) outer surface and tension ground tackle to be measured (2) outer surface
Central point is apart from equal, 120 ° of angles of formation between two neighboring contact point and tension ground tackle to be measured (2) outer surface central point.
3. a kind of device of anchor pole anchor head displacement measurement according to claim 1, it is characterised in that：Each magnetic power meter
The connecting rod that the dial gauge adjustment frame (5-2) of frame (5) is hinged by two forms, wherein a connecting rod and magnetic force mounting base
(5-1) is movably hinged, and another connecting rod is movably hinged with dial gauge (4), and is equipped with fastening bolt (5-3) in each hinged place,
Each dial gauge (4) can under the action of corresponding dial gauge adjustment frame (5-2) adjustment direction and distance.
4. a kind of device of anchor pole anchor head displacement measurement according to claim 1, it is characterised in that：The center rest
(1) in the foundation soil (6) by vertical steel pipe (1-1) build-in after tension ground tackle to be measured (2) smooth compacting nearby.
5. a kind of device of anchor pole anchor head displacement measurement according to claim 1, it is characterised in that：Three dial gauges
(4) respectively by the magnet adsorption in its magnetic force mounting base (5-1) on the lateral steel pipe (1-2) of center rest (1).
6. a kind of device of anchor pole anchor head displacement measurement according to claim 1, it is characterised in that：Three dial gauges
(4) precision is 0.01mm, and range meets test requirements document.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087941.7U CN207741663U (en) | 2018-01-18 | 2018-01-18 | A kind of device of anchor pole anchor head displacement measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087941.7U CN207741663U (en) | 2018-01-18 | 2018-01-18 | A kind of device of anchor pole anchor head displacement measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207741663U true CN207741663U (en) | 2018-08-17 |
Family
ID=63123357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820087941.7U Active CN207741663U (en) | 2018-01-18 | 2018-01-18 | A kind of device of anchor pole anchor head displacement measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207741663U (en) |
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2018
- 2018-01-18 CN CN201820087941.7U patent/CN207741663U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 430080 No. 17 metallurgical Avenue, Qingshan District, Hubei, Wuhan Patentee after: MCC Wukan Engineering Technology Co.,Ltd. Address before: 430080 No. 17 metallurgical Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN SURVEYING GEOTECHNICAL RESEARCH INSTITUTE Co.,Ltd. OF MCC |