CN110056017A - Stake heart positioning device and its measurement method - Google Patents
Stake heart positioning device and its measurement method Download PDFInfo
- Publication number
- CN110056017A CN110056017A CN201910323993.9A CN201910323993A CN110056017A CN 110056017 A CN110056017 A CN 110056017A CN 201910323993 A CN201910323993 A CN 201910323993A CN 110056017 A CN110056017 A CN 110056017A
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- dial
- positioning device
- heart
- heart positioning
- pedestal
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- 238000000691 measurement method Methods 0.000 title claims abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of heart positioning device and its measurement method, comprising: pedestal；Dial, the dial are set on the base to be supported by the pedestal, and the adjustable level height to adjust the dial of height, the center of the dial are equipped with centre bore to the pedestal in the vertical direction；At least one level(l)ing bubble, at least one described level(l)ing bubble are located on the dial, at least one described level(l)ing bubble is matched with the pedestal to guarantee that the upper surface of the dial is parallel with horizontal line；Graduated scale, the graduated scale are located on the dial；Plumb bob, the plumb bob are located at the central hole and extend straight down along the centre bore.Stake heart positioning device of the invention, it is convenient to set up, and stake heart positioning accuracy is high.This heart positioning device, overall structure is simple, easy to use, easily operated, and suit large area to popularize application.
Description
Technical field
The present invention relates to engineering measuring technology fields, more particularly, to a kind of heart positioning device.
Background technique
In construction process, the engineering pile for completion of having constructed need to determine its deviation situation according to its heart position,
The stake position review of especially one pile for one column needs very high measurement accuracy.Traditional stake heart review is substantially cornerwise using drawing
Mode finds a heart, but this kind of mode the disadvantages of there are stake heart position error is big, and time-consuming.
Summary of the invention
In view of this, the present invention provides a kind of heart positioning device, the positioning accuracy of a heart can be effectively improved.
In order to solve the above technical problems, the invention adopts the following technical scheme:
The stake heart positioning device of embodiment according to a first aspect of the present invention, comprising: pedestal；Dial, the dial are set
On the base to be supported by the pedestal, the pedestal adjustable water to adjust the dial of height in the vertical direction
The center of flat height, the dial is equipped with centre bore；At least one level(l)ing bubble, at least one described level(l)ing bubble are located at institute
It states on dial, at least one described level(l)ing bubble matches upper surface and level to guarantee the dial with the pedestal
Line is parallel；Graduated scale, the graduated scale are located on the dial；Plumb bob, the plumb bob are located at the central hole and along institutes
Centre bore is stated to extend straight down.
Further, the pedestal is formed as multiple support legs, and multiple support legs are arranged spaced apart in the dial
Bottom, height is adjustable in the vertical direction for each support leg.
Further, each support leg respectively include: support portion, the support portion are formed as column, the support
Portion is connected with the dial, and the support portion, which is equipped with along its axially extending adjustment hole, the adjustment hole, is equipped with internal screw thread；
The upper end of adjustment portion, the adjustment portion is equipped with external screw thread, and the upper end of the adjustment portion is connected in the adjustment hole internal screw thread.
Further, the dial is formed as column, and the dial is formed as transparent material materials and parts.
Further, the graduated scale be two, two graduated scales respectively along the dial radially extend and
Two graduated scales are mutually perpendicular to so that the dial is separated into the quartering.
Further, the graduated scale is formed as a millimeter graduated scale.
Further, the level(l)ing bubble is two, and two level(l)ing bubbles are arranged spaced apart on the dial.
Further, the plumb bob includes: messenger wire, and one end of the messenger wire passes through the centre bore and the dial phase
Even；Sash weight, the sash weight is located at the other end of the messenger wire and the sash weight extends straight down backwards to the dial.
Further, the section of sash weight is formed as up-side down triangle.
Further, the stake heart positioning device further include: two handles, two handles are arranged spaced apart described
On dial.
The measurement method of the stake heart positioning device of embodiment according to a second aspect of the present invention, which is characterized in that including
Following steps:
Adjustment base simultaneously determines whether dial is horizontally situated according to level(l)ing bubble；
A heart is found out according to the indicating positions of plumb bob；
According to the distance of the adjacent studs heart of original planning, next stake heart is measured using the graduated scale on dial
Distance simultaneously successively finds out the adjacent stake heart by the indicating positions of plumb bob.
The advantageous effects of the above technical solutions of the present invention are as follows:
Stake heart positioning device according to an embodiment of the present invention, it is convenient to set up, and stake heart positioning accuracy is high.This heart positioning dress
It sets, overall structure is simple, and easy to use, easily operated, suit large area to popularize application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the stake heart positioning device of the embodiment of the present invention；
Fig. 2 is the top view of the stake heart positioning device of the embodiment of the present invention；
Fig. 3 is the cross-sectional view of the stake heart positioning device of the embodiment of the present invention.
Appended drawing reference:
Stake heart positioning device 100；
Support leg 10；Support portion 11；Adjustment portion 12；External screw thread 121；
Dial 20；
Level(l)ing bubble 30；
Graduated scale 40；
Plumb bob 50；Messenger wire 51；Sash weight 52；
Handle 60.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless otherwise defined, technical term or scientific term used in the present invention are should be in fields of the present invention
The ordinary meaning that personage with general technical ability is understood." first ", " second " used in the present invention and similar word
It is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts." connection " or " connected "
It is not limited to physics or mechanical connection etc. similar word, but may include electrical connection, either directly
Or it is indirect."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when the absolute position for being described object
After setting change, then the relative positional relationship also correspondingly changes.
Stake heart positioning device 100 according to an embodiment of the present invention is specifically described in conjunction with attached drawing first below.
As shown in Figure 1 to Figure 3, stake heart positioning device 100 according to an embodiment of the present invention includes pedestal, dial 20, extremely
A few level(l)ing bubble 30, graduated scale 40 and plumb bob 50.
Specifically, dial 20 is located to be supported by pedestal on pedestal, height is adjustable to adjust in the vertical direction for pedestal
The level height of dial 20 is saved, the center of dial 20 is equipped with centre bore.At least one level(l)ing bubble 30 is located at dial 20
On, at least one level(l)ing bubble 30 is matched with pedestal to guarantee that the upper surface of dial 20 is parallel with horizontal line.Graduated scale 40
It is located on dial 20.Plumb bob 50 is located at central hole and extends straight down along centre bore.
In other words, stake heart positioning device 100 according to an embodiment of the present invention mainly by pedestal, dial 20, at least one
Level(l)ing bubble 30, graduated scale 40 and plumb bob 50 form.Wherein, dial 20 may be mounted on pedestal, and pedestal can support quarter
Scale 20.Pedestal in the vertical direction height it is adjustable, by height of the adjustment base on its vertical direction can further by
Dial 20 is adjusted to, raising stake heart positioning accuracy parallel with horizontal line.Can there are centre bore, plumb bob on the center of dial 20
50 may be mounted at central hole, and plumb bob 50 can guarantee that plumb bob 50 can be perpendicular along centre bore always by its own gravity
It is straight downward, no matter guaranteeing which kind of landform is stake heart positioning device 100 be located at, it can accurately find a heart.At least one level(l)ing bubble
30 can process on dial 20, be matched by height-adjustable pedestal at least one level(l)ing bubble 30, Ke Yibao
The dial 20 of stake heart positioning device 100 can be adjusted to parallel with horizontal line by card operator, improve stake heart positioning device
100 measurement efficiency and positioning accuracy.It can be machined with graduated scale 40 on dial 20, can be measured by graduated scale 40 adjacent
The stake heart distance, while can detecte by the graduated scale 40 on dial 20 the parallel situation of the engineering pile of steel column.
Stake heart positioning device 100 according to an embodiment of the present invention as a result, stake heart positioning accuracy are high.This heart positioning device
100, overall structure is simple, easy to use, easily operated, and suit large area to popularize application.
According to one embodiment of present invention, pedestal is formed as multiple support legs 10, and multiple support legs 10 are arranged spaced apart
In the bottom of dial 20, height is adjustable in the vertical direction for each support leg 10.
That is, pedestal can be processed into multiple support legs 10, multiple support legs 10, which can be spaced apart, is mounted on scale
The bottom of disk 20, the height of each support leg 10, which can be adjusted freely, to be connect.By the way that pedestal is processed into multiple support legs 10, it is convenient for stake
The erection of heart positioning device 100, certainly, the specific number of support leg 10 can be according to the size and reality of dial 20
The needs of engineering survey are specifically set.
According to one embodiment of present invention, each support leg 10 respectively includes support portion 11 and adjustment portion 12.
Specifically, support portion 11 is formed as column, and support portion 11 is connected with dial 20, and support portion 11 is equipped with along its axial direction
The adjustment hole of extension, adjustment hole is interior to be equipped with internal screw thread.The upper end of adjustment portion 12 is equipped with external screw thread 121, and the upper end of adjustment portion 12 exists
The connection of adjustment hole internal screw thread.
In other words, each support leg 10 is mainly made of support portion 11 and adjustment portion 12.Wherein, support portion 11 can be big
Cylinder is processed into cause, and each support portion 11 can be spaced apart the bottom for being mounted on dial 20.It can add on each support portion 11
Work has and can be machined with internal screw thread along its axially extending adjustment hole, adjustment hole.The upper end of adjustment portion 12 can be machined with outer
The upper end of screw thread 121, adjustment portion 12 can be connected in adjustment hole internal screw thread, and adjustment portion 12 can be in the adjustment hole of support portion 11
The height of support leg 10 is adjusted by threaded engagement, and then adjusts the level height of dial 20, guarantees that dial 20 can position
In horizontal position, the positioning accuracy of stake heart positioning device 100 is improved.
According to one embodiment of present invention, dial 20 is formed as column, and dial 20 is formed as transparent material materials and parts.
That is, dial 20 can be processed into column, dial 20 can be processed to be formed using transparent material.It is transparent
Dial 20 can be in order to the adjusting and measurement of stake heart positioning device 100.
According to one embodiment of present invention, graduated scale 40 is two, and two graduated scales 40 are respectively along the diameter of dial 20
To extension and two graduated scales 40 are mutually perpendicular to so that dial 20 is separated into the quartering.
In other words, graduated scale 40 can use two, two graduated scales 40 can the radial direction respectively along dial 20 prolong
It stretches, and two scales can be mutually perpendicular to be convenient for the 100 pairs of stakes of stake heart positioning device so that dial 20 is separated into the quartering with ruler
The measurement of heart position, while being also convenient for the deformation of the engineering pile of detection steel column.Preferably, graduated scale 40 can be using milli
Rice graduated scale, certainly, the specific measurement accuracy of graduated scale 40 can specifically be set according to actual requirement of engineering.
According to one embodiment of present invention, level(l)ing bubble 30 is two, and two level(l)ing bubbles 30 are arranged spaced apart to be carved
On scale 20.
That is, level(l)ing bubble 30 can be two, two level(l)ing bubbles 30, which are spaced apart, to be mounted on dial 20, is led to
Crossing two level(l)ing bubbles 30 of installation can be further improved the precision of the adjusting of dial 20.
According to one embodiment of present invention, plumb bob 50 includes messenger wire 51 and sash weight 52.
Specifically, one end of messenger wire 51 is connected by centre bore with dial 20, and sash weight 52 is located at the other end of messenger wire 51
And sash weight 52 extends straight down backwards to dial 20.
In other words, plumb bob 50 is mainly made of messenger wire 51 and sash weight 52.Wherein, one end of messenger wire 51 can pass through center
Hole is connected with dial 20, and sash weight 52 can tie up to the other end of messenger wire 51, and the section of sash weight 52 can be generally machined to down three
It is angular, it can guarantee that sash weight 52 extends backwards to dial 20 straight down always by the self gravitation effect of sash weight 52, improve
100 measurement efficiency of stake heart positioning device and measurement accuracy.
According to one embodiment of present invention, stake heart positioning device 100 further include: two handles 60, between two handles 60
It is arranged apart on dial 20.
That is, stake heart positioning device 100 can also include two handles 60, two handles 60 can be spaced apart installation
On dial 20.By on dial 20 install two handles 60, be more conducive to an erection for heart positioning device 100 and
It is mobile.
To sum up, stake heart positioning device 100 according to an embodiment of the present invention, it is convenient to set up, and stake heart positioning accuracy is high.It should
Stake heart positioning device 100, overall structure is simple, and easy to use, easily operated, suit large area to popularize application.
The measurement method of the stake heart positioning device of embodiment according to a second aspect of the present invention, comprising the following steps: adjust bottom
Seat simultaneously determines whether dial 20 is horizontally situated according to level(l)ing bubble 30；A heart is found out according to the indicating positions of plumb bob 50；
According to the distance of the adjacent studs heart of original planning, the distance of the next heart is measured using the graduated scale 40 on dial 20 and is led to
The indicating positions for crossing plumb bob 50 successively finds out the adjacent stake heart.
Specifically, the measurement method of the stake heart positioning device of the embodiment of the present invention, it is possible, firstly, to two of adjustment base
Support leg 10 is simultaneously matched with level(l)ing bubble 30 to determine whether dial 20 is horizontally situated.Water is adjusted to dial 20
Prosposition postpones, and can find out a heart according to the indicating positions of plumb bob 50.Finally, can according to the adjacent studs heart of original planning away from
From, measure the distance of the next heart using the graduated scale 40 on dial 20, and can by the indicating positions of plumb bob 50 according to
It is secondary to find out the adjacent stake heart.The measurement method of this heart positioning device is simple, and positioning accuracy is high, easily operated, easy to use.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " preferred embodiment ", " specific embodiment " or " preferred embodiment " etc. means that the embodiment or example is combined to retouch
The particular features, structures, materials, or characteristics stated are included at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms may not refer to the same embodiment or example.Moreover, the specific features of description,
Structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of heart positioning device characterized by comprising
Pedestal；
Dial, the dial are set on the base to be supported by the pedestal, the pedestal in the vertical direction height
The center of the adjustable level height to adjust the dial, the dial is equipped with centre bore；
At least one level(l)ing bubble, at least one described level(l)ing bubble are located on the dial, at least one described level gas
Bubble is matched with the pedestal to guarantee that the upper surface of the dial is parallel with horizontal line；
Graduated scale, the graduated scale are located on the dial；
Plumb bob, the plumb bob are located at the central hole and extend straight down along the centre bore.
2. according to claim 1 heart positioning device, which is characterized in that the pedestal is formed as multiple support legs, more
A support leg bottom arranged spaced apart in the dial, height is adjustable in the vertical direction for each support leg.
3. according to claim 2 heart positioning device, which is characterized in that each support leg respectively include:
Support portion, the support portion are formed as column, and the support portion is connected with the dial, and the support portion is equipped with along it
Axially extending adjustment hole, the adjustment hole is interior to be equipped with internal screw thread；
The upper end of adjustment portion, the adjustment portion is equipped with external screw thread, and the upper end of the adjustment portion is connected in the adjustment hole internal screw thread.
4. according to claim 1 heart positioning device, which is characterized in that the dial is formed as column, the quarter
Scale is formed as transparent material materials and parts.
5. according to claim 4 heart positioning device, which is characterized in that the graduated scale is two, two quarters
Degree ruler is respectively formed as a millimeter graduated scale, two graduated scales respectively along the dial radially extend and two quarters
Degree ruler is mutually perpendicular to so that the dial is separated into the quartering.
6. according to claim 1 heart positioning device, which is characterized in that the level(l)ing bubble is two, described in two
Level(l)ing bubble is arranged spaced apart on the dial.
7. according to claim 1 heart positioning device, which is characterized in that the plumb bob includes:
One end of messenger wire, the messenger wire is connected by the centre bore with the dial；
Sash weight, the sash weight is located at the other end of the messenger wire and the sash weight extends straight down backwards to the dial.
8. according to claim 7 heart positioning device, which is characterized in that the section of sash weight is formed as up-side down triangle.
9. according to claim 1 heart positioning device, which is characterized in that the stake heart positioning device further include: two
Handle, two handles are arranged spaced apart on the dial.
10. a kind of measurement method of the stake heart positioning device as described in any one of claim 1-9, which is characterized in that including with
Lower step:
Adjustment base simultaneously determines whether dial is horizontally situated according to level(l)ing bubble；
A heart is found out according to the indicating positions of plumb bob；
According to the distance of the adjacent studs heart of original planning, the distance of next stake heart is measured using the graduated scale on dial
And the adjacent stake heart is successively found out by the indicating positions of plumb bob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323993.9A CN110056017A (en) | 2019-04-22 | 2019-04-22 | Stake heart positioning device and its measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323993.9A CN110056017A (en) | 2019-04-22 | 2019-04-22 | Stake heart positioning device and its measurement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056017A true CN110056017A (en) | 2019-07-26 |
Family
ID=67320067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910323993.9A Pending CN110056017A (en) | 2019-04-22 | 2019-04-22 | Stake heart positioning device and its measurement method |
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| Country | Link |
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| CN (1) | CN110056017A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487150A (en) * | 2019-09-09 | 2019-11-22 | 泰宏建设发展有限公司 | Scaffold displacement measurement system and measurement method |
| CN113280721A (en) * | 2021-04-25 | 2021-08-20 | 中铁建工集团有限公司 | Pile core positioning device and pile core positioning method |
| CN117190818A (en) * | 2023-11-08 | 2023-12-08 | 中国电建市政建设集团有限公司 | Pile core positioning device and pile core positioning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205718762U (en) * | 2016-05-05 | 2016-11-23 | 中建八局第四建设有限公司 | A kind of stake holes measuring instrument |
| CN207907886U (en) * | 2018-03-22 | 2018-09-25 | 淅川县电业局 | A kind of novel pole and tower foundation divides hole instrument |
| CN210288505U (en) * | 2019-04-22 | 2020-04-10 | 上海建工一建集团有限公司 | Pile core positioning device |
-
2019
- 2019-04-22 CN CN201910323993.9A patent/CN110056017A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205718762U (en) * | 2016-05-05 | 2016-11-23 | 中建八局第四建设有限公司 | A kind of stake holes measuring instrument |
| CN207907886U (en) * | 2018-03-22 | 2018-09-25 | 淅川县电业局 | A kind of novel pole and tower foundation divides hole instrument |
| CN210288505U (en) * | 2019-04-22 | 2020-04-10 | 上海建工一建集团有限公司 | Pile core positioning device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487150A (en) * | 2019-09-09 | 2019-11-22 | 泰宏建设发展有限公司 | Scaffold displacement measurement system and measurement method |
| CN113280721A (en) * | 2021-04-25 | 2021-08-20 | 中铁建工集团有限公司 | Pile core positioning device and pile core positioning method |
| CN117190818A (en) * | 2023-11-08 | 2023-12-08 | 中国电建市政建设集团有限公司 | Pile core positioning device and pile core positioning method |
| CN117190818B (en) * | 2023-11-08 | 2024-01-26 | 中国电建市政建设集团有限公司 | Pile core positioning device and pile core positioning method |
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