CN109596093A - Measuring device and method for shield transmitting pedestal setting-out - Google Patents
Measuring device and method for shield transmitting pedestal setting-out Download PDFInfo
- Publication number
- CN109596093A CN109596093A CN201811376296.1A CN201811376296A CN109596093A CN 109596093 A CN109596093 A CN 109596093A CN 201811376296 A CN201811376296 A CN 201811376296A CN 109596093 A CN109596093 A CN 109596093A
- Authority
- CN
- China
- Prior art keywords
- sopwith staff
- transmitting
- shield
- infrared ray
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention relates to a kind of measuring devices and method for shield transmitting pedestal setting-out, the Sopwith staff of the measuring device is fixed on shield machine by the fixed device of Sopwith staff and emits on four angle points of base track, Sopwith staff is fitted with Sopwith staff labelling apparatus, and Sopwith staff labelling apparatus is used to mark the label of shield machine transmitting pedestal height difference；Infrared ray level and hand-hold ranger are installed on translatable measurement bay, and are erected on transmitting base axis position.The present invention is by using infrared ray level and the fixed device of Sopwith staff, it more convenient quickly can observe in real time transmitting base position deviation, solve original needs first with total station survey and emit base plane, measure transmitting four angle point elevations of pedestal one by one with level again, because that cannot be adjusted in synchronism at 4 points, the point originally mixed up when adjusting remaining point can change, and need to adjust repeatedly, testing causes to measure heavy workload repeatedly, time-consuming, and artificial placement, be easy to cause the error of measurement.
Description
Technical field
It is especially a kind of to be put for shield transmitting pedestal the present invention relates to the measuring device in a kind of shield method tunnel construction
The measuring device and method of sample.
Background technique
As China's shield construction is more and more extensive in newly-built tunnel applications, before shield launching, shield is carried out
The setting-out and positioning of machine transmitting pedestal are most important, are accurately positioned in order to emit pedestal for shield machine, are usually needed
The survey crew of profession is wanted to carry out setting out survey, at the construction field (site) since operating condition is complicated and changeable, in most cases in shield
In end well foundation pit the surveying and locating work of shield and transmitter block can not be carried out in suitable place due to ponding and place
Make, be based on problem above, how accurately quickly to measure shield machine transmitting pedestal initial position, be one and need what is solved to ask
Topic.
When practice of construction setting-out, the plan-position setting-out of shield machine transmitting pedestal, which first passes through, releases door opening actual measurement center
Three-dimensional coordinate is calculated transmitting pedestal with design axis and goes out practical center axis, the axis of transmitting pedestal, root are released using total station
The left and right plane position that transmitting pedestal is first adjusted according to axis recycles level to measure transmitting four angle point elevations of pedestal one by one,
Due to arrangement survey station point can only limitation and level can only one point of independent measurement height difference, adjustment transmitting each angle point of pedestal
Elevation needs repeated measurement to adjust repeatedly, and this method measures heavy workload, and time-consuming, due to setting-out scene ponding and Sopwith staff
The position of placement can not be fixed, and can not normally set up point, easily cause measurement error.
Summary of the invention
The present invention is exactly the deficiency in order to solve above-mentioned measurement method, provides one kind shield machine easy to operate that can be used for and emits
The measuring device and method of pedestal setting-out, accomplish quick, real-time, effectively improve measurement progress, construction quality and construction speed.
In order to achieve the above purpose, the technical scheme is that a kind of measurement for shield transmitting pedestal setting-out
Device, including Sopwith staff, Sopwith staff labelling apparatus, Sopwith staff fixed device, infrared ray level, hand-hold ranger, translatable measurement
Frame, the Sopwith staff is fixed on shield machine by the fixed device of Sopwith staff and emits on four angle points of base track, for measuring shield
The elevation of machine transmitting pedestal；The Sopwith staff is fitted with Sopwith staff labelling apparatus, and Sopwith staff labelling apparatus is for marking shield machine to emit
The label of pedestal height difference；Infrared ray level and hand-hold ranger are installed on the translatable measurement bay, and are erected at hair
It penetrates on base axis position.
Further, the Sopwith staff labelling apparatus includes Sopwith staff label fastening screw, Sopwith staff label is bound round, Sopwith staff marks, described
Sopwith staff label marks fastening screw to be fixedly connected on Sopwith staff by Sopwith staff label hoop and Sopwith staff.
Further, the fixed device of the Sopwith staff includes Sopwith staff clips, Sopwith staff fixed fastening screw, strong magnet, the tower
Ruler is mounted on shield and is emitted on four angle points of base track by Sopwith staff clips and the fixed fastening screw of Sopwith staff, and the Sopwith staff is solid
Strong magnet is arranged below in fixed hoop, and the fixed device of the Sopwith staff is fixed on shield machine transmitting four angles of base track by strong magnet adjustment
Point.
Further, the translatable measurement bay includes connection measurement cake, movable frame, circle bubble, joint coupling, foot
Frame, the connection measurement cake are mounted on foot prop by movable frame, and movable frame is equipped with circle bubble, utilizes circle bubble Anping
Translatable measurement bay, connection measure and are fixedly connected with infrared ray level above cake, connect hand-held below by joint coupling
Rangefinder.
Further, the Sopwith staff is aluminium alloy standard Sopwith staff.
Further, the infrared ray level is to throw line with automatic leveling function and the infrared ray of cross beam functions
Instrument.
A method of using the measuring device for shield transmitting pedestal setting-out, specific steps are as follows:
(1) hole circle center three-dimensional coordinate is first measured, and is marked in the bottom Dong Quan；According to actual measurement door opening centre coordinate with
Designed lines axis calculates the transmitting practical setting-out axis data of pedestal；
(2) construction AB coordinate system is established, with the shield machine transmitting practical setting-out longitudinal axis of pedestal for A axis, vertical shield machine hair
Penetrating pedestal transversal line is B axle, and construction coordinate system origin takes at 10 meters latter on shield machine transmitting base axis as construction AB coordinate system
Origin be (0,0)；
(3) reflector plate is laid in the two sides shield Dong Quan same level height, measures the three-dimensional coordinate of two reflector plates, led to
It crosses coordinate transformation method calculating and is converted into construction coordinate, elevation location should be higher than that 50 centimetres of base central elevation of transmitting, and two o'clock is same
One horizontal plane has simultaneously recorded altitude data；
(4) before installation emits pedestal, translatable measurement bay is set up in transmitting base axis position, and fix infrared ray
Level and hand-hold ranger；Antenna height is known reflector plate same level；
(5) infrared ray level center and shield are measured respectively with the hand-hold ranger being fixed on translatable measurement bay
The level between two side reflector plates is enclosed away from S1, S2 in structure hole, calculates cultellation instrument practice of construction coordinate by measuring resection method,
Coordinate B value is to deviate shield machine to emit base axis left and right horizontal distance, and when B value is not 0, translation distance is coordinate B value number
Value translates the corresponding distance of infrared ray level, and translation direction "+" value is with shield machine direction of advance to moving to left, and "-" value is to the right
It moves, repetition measurement makes its B coordinate value 0, i.e., infrared ray level is on shield machine transmitting base axis；Open infrared ray level ten
Word light makes at vertical line alignment door opening centre mark, and vertical laser rays is the axis for emitting pedestal；
(6) in four fixed devices of angle point installation Sopwith staff of shield transmitting base track, connection shield machine emits base track
Four angle points and fixed Sopwith staff, install Sopwith staff labelling apparatus, and absolute altitude known to the measurement end borehole wall show that infrared ray level is horizontal
Face elevation is calculated by the design altitude and infrared ray level horizontal plane grid DEM elevation difference that emit four angle points of pedestal
Correct number, Sopwith staff labelling apparatus adjusted according to amendment number, infrared ray level projects on horizontal light to Sopwith staff, according to light with
The distance of label adjusts shield machine and emits base height to design height.
The present invention compared with the existing technology, have the following advantages that and the utility model has the advantages that
For the present invention by using infrared ray level and corresponding measuring device, can be more convenient quicklook reflects shield
Structure machine emits the deviation of base plane and elevation, solves the original position needed first with total station survey transmitting base axis
It sets, then measures the elevation of transmitting four angle points of pedestal one by one with level, because that cannot be adjusted in synchronism at 4 points, when adjusting remaining point
The point originally mixed up can change, and need to adjust repeatedly, and testing causes to measure heavy workload repeatedly, and time-consuming, due to Sopwith staff
The position of placement can not be fixed, if manually place it is not in place if, the problems such as being easy to cause the error of measurement.
Detailed description of the invention
Fig. 1 is the measuring device schematic diagram for shield machine transmitting pedestal setting-out of the invention；
Fig. 2 is measurement plan view of the invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is Sopwith staff labelling apparatus structural schematic diagram of the invention；
Wherein: (a) main view, (b) top view；
Fig. 5 is Sopwith staff fixture structure schematic diagram of the invention；
Wherein: (a) main view, (b) top view；
Fig. 6 is the fixed device of Sopwith staff of the invention, Sopwith staff labelling apparatus and Sopwith staff scheme of installation；
Fig. 7 is translatable measurement bay plan view of the invention.
Specific embodiment
Below with reference to attached drawing, invention is further described in detail.
Such as Fig. 1, shown in 2,3, a kind of measuring device for shield transmitting pedestal setting-out, including Sopwith staff 1, Sopwith staff label are filled
Set 2, Sopwith staff fixed device 3, infrared ray level 4, hand-hold ranger 5, translatable measurement bay 6.Sopwith staff 1 is fixed by Sopwith staff
Device 3 is fixed on four angle points of shield machine transmitting base track, for measuring the elevation of shield machine transmitting pedestal, Sopwith staff 1
For aluminium alloy standard Sopwith staff.Sopwith staff 1 is fitted with Sopwith staff labelling apparatus 2；Sopwith staff labelling apparatus 2 is for marking shield machine to emit base
The label of seat height difference.Infrared ray level 4 and hand-hold ranger 5 are installed on translatable measurement bay 6, and are erected at transmitting base
In seat axial location.Infrared ray level 4 has automatic leveling function and cross beam functions, is erected at translatable measurement bay 6
On.
(b) shown such as Fig. 4 (a), Sopwith staff labelling apparatus 2 includes Sopwith staff label fastening screw 21, Sopwith staff label hoop 22, tower
Ruler label 23.Sopwith staff label 23 marks fastening screw 21 to be fixedly connected on Sopwith staff 1 by Sopwith staff label hoop 22 and Sopwith staff.
Such as Fig. 5 (a), (b) shown in, the fixed device 3 of Sopwith staff includes Sopwith staff clips 31, the fixed fastening screw 32 of Sopwith staff, strong
Magnet 33.Sopwith staff 1 is mounted on shield and emits four angles of base track by Sopwith staff clips 31 and the fixed fastening screw 32 of Sopwith staff
On point, three strong magnets 33 are arranged below in Sopwith staff clips 31, and the fixed device 3 of Sopwith staff is fixed on shield machine by the adjustment of strong magnet 33
On the angle point for emitting base track, as shown in Figure 6.
As shown in fig. 7, translatable measurement bay 6 includes connection measurement cake 61, movable frame 62, circle bubble 63, universal connection
Device 64, foot prop 65.Connection measurement cake 61 is mounted on foot prop 65 by movable frame 62, and movable frame 62 is equipped with circle bubble
63, using the circle translatable measurement bay 6 in 63 Anping of bubble, connection measurement cake 61 is fixedly connected with infrared ray level 4 above, leads to below
It crosses joint coupling 64 and connects hand-hold ranger 5.
Such as Fig. 1, shown in 2,3, using the specific method of the measuring device for shield transmitting pedestal setting-out of the invention,
Steps are as follows:
(1) hole circle center three-dimensional coordinate is first measured, and is marked in the bottom Dong Quan；According to actual measurement door opening centre coordinate with
Designed lines axis calculates the transmitting practical setting-out axis data of pedestal；
(2) construction AB coordinate system is established, with the shield machine transmitting practical setting-out axis of pedestal for A axis (longitudinal axis), vertical shield
It is B axle (horizontal axis) that machine, which emits base axis, and construction coordinate system origin takes at 10 meters latter on shield machine transmitting base axis as construction
The origin of AB coordinate system is (0,0)
(3) reflector plate is laid in the two sides shield Dong Quan same level height, measures the three-dimensional coordinate of two reflector plates, led to
It crosses coordinate transformation method calculating and is converted into construction coordinate, elevation location should be higher than that 50 centimetres of base central elevation of transmitting, and two o'clock is same
One horizontal plane has simultaneously recorded altitude data
(4) before installation emits pedestal, as long as survey station point is substantially being erected at transmitting base axis position, circle bubble is utilized
The translatable measurement bay 6 in 63 Anping fixes infrared ray level 4 on connection measurement cake 61, is fixed with joint coupling 64
Hand-hold ranger 5.Antenna height should be consistent with the reflector plate height of the two sides shield Dong Quan.
(5) 4 center of infrared ray level is measured respectively with the hand-hold ranger 5 being fixed on translatable measurement bay 6
The level between two side reflector plates is enclosed away from S1, S2 with shield hole, calculates infrared ray level 4 by measuring resection method
Practice of construction coordinate, coordinate B value be deviate shield machine emit base axis left and right horizontal distance, when B value is not 0, translation away from
From for coordinate B value numerical value, the as distance that translates of infrared ray level 4, translation direction "+" value with shield machine direction of advance to the left
It moves, "-" value moves right, and repetition measurement makes its B coordinate value 0, i.e., infrared ray level 4 is on shield machine transmitting base axis；It opens
4 cross light of infrared ray level makes at vertical line alignment door opening centre mark, and vertical laser rays is the axis for emitting pedestal
Line；
(6) in four fixed devices 3 of angle point installation Sopwith staff of shield transmitting base track, strong magnet 33 adjusts fixed shield machine
Emit four angle points of base track, Sopwith staff clips 31 fix Sopwith staff, install Sopwith staff label 23, are surveyed with infrared ray level 4
The known absolute altitude for measuring end borehole wall reflector plate position Sopwith staff, obtains 4 horizontal plane elevation of infrared ray level, emits base by calculating
The design altitude and 4 horizontal plane elevation difference of infrared ray level of four angle points of seat calculate amendment number, adjust tower according to amendment number
To design height difference position, infrared ray level 4 projects on horizontal light to Sopwith staff 1 ruler label 23, according to light and label away from
From adjusting shield machine emits base height to design height.
Claims (7)
1. a kind of measuring device for shield transmitting pedestal setting-out, including the fixed device of Sopwith staff, Sopwith staff labelling apparatus, Sopwith staff,
Infrared ray level, hand-hold ranger, translatable measurement bay, it is characterised in that: the Sopwith staff is solid by the fixed device of Sopwith staff
It is scheduled on four angle points of shield machine transmitting base track, for measuring the elevation of shield machine transmitting pedestal；Above the Sopwith staff
Equipped with Sopwith staff labelling apparatus, Sopwith staff labelling apparatus is used to mark the label of shield machine transmitting pedestal height difference；The translatable measurement
Infrared ray level and hand-hold ranger are installed on frame, and are erected on transmitting base axis position.
2. the measuring device according to claim 1 for shield transmitting pedestal setting-out, it is characterised in that: the Sopwith staff mark
Note device includes Sopwith staff label fastening screw, Sopwith staff label hoop, Sopwith staff label, and the Sopwith staff label marks hoop and tower by Sopwith staff
Ruler label fastening screw is fixedly connected on Sopwith staff.
3. the measuring device according to claim 1 for shield transmitting pedestal setting-out, it is characterised in that: the Sopwith staff is solid
Determining device includes Sopwith staff clips, Sopwith staff fixed fastening screw, strong magnet, and the Sopwith staff is fixed by Sopwith staff clips and Sopwith staff
Fastening screw is mounted on shield transmitting four angle points of base track, and strong magnet, the tower is arranged below in the Sopwith staff clips
The fixed device of ruler is fixed on shield machine transmitting four angle points of base track by strong magnet adjustment.
4. the measuring device according to claim 1 for shield transmitting pedestal setting-out, it is characterised in that: described translatable
Measurement bay includes connection measurement cake, movable frame, circle bubble, joint coupling, foot prop, and the connection measurement cake passes through removable
Frame is mounted on foot prop, and movable frame is equipped with circle bubble, and using the circle translatable measurement bay in bubble Anping, connection is measured above cake
It is fixedly connected with infrared ray level, connects hand-hold ranger below by joint coupling.
5. the measuring device according to claim 1 for shield transmitting pedestal setting-out, it is characterised in that: the Sopwith staff is
Aluminium alloy standard Sopwith staff.
6. the measuring device according to claim 1 for shield transmitting pedestal setting-out, it is characterised in that: the infrared ray
Level is the infrared ray level with automatic leveling function and cross beam functions.
7. a kind of method using any measuring device for shield transmitting pedestal setting-out of claim 1-6, special
Sign is, specific steps are as follows:
(1) hole circle center three-dimensional coordinate is first measured, and is marked in the bottom Dong Quan；According to actual measurement door opening centre coordinate and design
Line axis calculates the transmitting practical setting-out axis data of pedestal；
(2) construction AB coordinate system is established, with the shield machine transmitting practical setting-out longitudinal axis of pedestal for A axis, vertical shield machine emits base
Seat transversal line is B axle, and construction coordinate system origin takes the original at 10 meters latter on shield machine transmitting base axis for construction AB coordinate system
Point is (0,0)；
(3) reflector plate is laid in the two sides shield Dong Quan same level height, measures the three-dimensional coordinate of two reflector plates, passes through seat
Mark transformation approach calculating is converted into construction coordinate, and elevation location should be higher than that 50 centimetres of base central elevation of transmitting, and two o'clock is same water
Plane has simultaneously recorded altitude data；
(4) before installation emits pedestal, translatable measurement bay is set up in transmitting base axis position, and fix infrared ray and throw line
Instrument and hand-hold ranger；Antenna height is known reflector plate same level；
(5) infrared ray level center and shield hole are measured respectively with the hand-hold ranger being fixed on translatable measurement bay
The level between two side reflector plates is enclosed away from S1, S2, calculates cultellation instrument practice of construction coordinate, coordinate by measuring resection method
B value is to deviate shield machine to emit base axis left and right horizontal distance, and when B value is not 0, translation distance is coordinate B value numerical value, is put down
The corresponding distance of infrared ray level is moved, translation direction "+" value is with shield machine direction of advance to moving to left, and "-" value moves right, repetition measurement
Make its B coordinate value 0, i.e., infrared ray level is on shield machine transmitting base axis；Infrared ray level cross light is opened,
Make at vertical line alignment door opening centre mark, vertical laser rays is the axis for emitting pedestal；
(6) in four fixed devices of angle point installation Sopwith staff of shield transmitting base track, connection shield machine emits base track four
Angle point and fixed Sopwith staff, install Sopwith staff labelling apparatus, and absolute altitude known to the measurement end borehole wall show that infrared ray level horizontal plane is high
Journey is calculated by the design altitude and infrared ray level horizontal plane grid DEM elevation difference that emit four angle points of pedestal and is corrected
Number adjusts Sopwith staff labelling apparatus according to amendment number, and infrared ray level projects on horizontal light to Sopwith staff, according to light and label
Distance, adjust shield machine and emit base height to design height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376296.1A CN109596093B (en) | 2018-11-19 | 2018-11-19 | Measuring device and method for shield launching base lofting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811376296.1A CN109596093B (en) | 2018-11-19 | 2018-11-19 | Measuring device and method for shield launching base lofting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109596093A true CN109596093A (en) | 2019-04-09 |
| CN109596093B CN109596093B (en) | 2021-02-02 |
Family
ID=65958782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811376296.1A Active CN109596093B (en) | 2018-11-19 | 2018-11-19 | Measuring device and method for shield launching base lofting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109596093B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857432A (en) * | 2022-04-29 | 2022-08-05 | 中船广西船舶及海洋工程有限公司 | Reinforcing method for hydraulic test of liquid tank |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205785181U (en) * | 2016-06-17 | 2016-12-07 | 中国建筑第六工程局有限公司 | Adjustable Sopwith staff fixed mount |
| CN107966133A (en) * | 2018-01-15 | 2018-04-27 | 季志博 | Railway manually track lifting elevation laser control apparatus and its elevation control method |
-
2018
- 2018-11-19 CN CN201811376296.1A patent/CN109596093B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205785181U (en) * | 2016-06-17 | 2016-12-07 | 中国建筑第六工程局有限公司 | Adjustable Sopwith staff fixed mount |
| CN107966133A (en) * | 2018-01-15 | 2018-04-27 | 季志博 | Railway manually track lifting elevation laser control apparatus and its elevation control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857432A (en) * | 2022-04-29 | 2022-08-05 | 中船广西船舶及海洋工程有限公司 | Reinforcing method for hydraulic test of liquid tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109596093B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102890281B (en) | A kind of GPS hi-Fix measuring method for skyscraper | |
| US7987605B2 (en) | Reflector target tripod for survey system with light emitter and pivoting bracket for enhanced ground marking accuracy | |
| CN103884316B (en) | A kind of self-alignment double laser level altimeter | |
| CN108871266B (en) | Automatic settlement monitoring method based on intermediate method triangle elevation method | |
| CN108253946B (en) | Multifunctional vertical measurement and connection measurement integrated three-dimensional coordinate transmission device and method | |
| CN106979769B (en) | The reverse coordinate of tunnel shaft transmits cultellation construction survey method | |
| CN106382121A (en) | Measuring method for subway tunnel shield excavation | |
| CN203837692U (en) | Self-calibration laser altimeter | |
| CN111623757A (en) | CPII control network measuring method in long and large tunnel with receiving well | |
| CN104034319A (en) | High-rise building measurement control point projection positioning auxiliary device and using method thereof | |
| CN108680103A (en) | A kind of cable-stayed bridge superelevation bridge tower pier anchor structure Rapid precision locating measurement method | |
| CN105043343A (en) | Method for automated measurement of tunnel vault settlement based on laser displacement sensor | |
| CN106017435A (en) | Laser device and application method thereof | |
| CN203587057U (en) | Height measuring device | |
| CN109596093A (en) | Measuring device and method for shield transmitting pedestal setting-out | |
| CN207600398U (en) | A kind of tunnel absolute altitude and distance measurement instrument | |
| CN109631831A (en) | For measuring the device and measurement method of shield machine transmitting pedestal | |
| CN206847601U (en) | A kind of Bridge Pier Construction verticality measurement device | |
| CN212960734U (en) | Full-section blast hole positioning device based on central projection principle | |
| CN101464146A (en) | Measuring method and apparatus for accurately transmitting ground bench level to overhead viaduct | |
| CN210108333U (en) | Vault settlement measuring device based on precise laser range finder | |
| CN111271052A (en) | Combined device and method for measuring pile depth, pile diameter and pile hole perpendicularity | |
| CN109112936A (en) | A kind of surface evenness fining rapid measurement device | |
| CN108489455B (en) | Method for measuring internal structure of sewage open caisson | |
| CN110411423A (en) | Applied to prefabricated stand column positioning measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |