CN107255473A - A kind of measuring method for setting up dynamic benchmark plane - Google Patents
A kind of measuring method for setting up dynamic benchmark plane Download PDFInfo
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- CN107255473A CN107255473A CN201710514186.6A CN201710514186A CN107255473A CN 107255473 A CN107255473 A CN 107255473A CN 201710514186 A CN201710514186 A CN 201710514186A CN 107255473 A CN107255473 A CN 107255473A
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- 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
Abstract
The invention discloses a kind of measuring method for setting up dynamic benchmark plane, comprise the following steps that：S1, with central point O1Centered on set up reference frame, reference frame includes the four axistyle point and the datum mark mark that is arranged on axis point positioned at the 1st dynamic platform, and four axistyle point is located on same rhombus, central point and the central point O of rhombus1Overlap；S2, in central point O1Place's placement spirit level, adjusts the tripod base of spirit level；S3, erects scale, and spirit level sights scale and four datum mark marks are observed with reading, and the height for adjusting four datum mark marks is equal to the reading of spirit level, obtains initial baseline plane；S4, in O1Place's placement measuring instrument, the tripod base of measuring instrument is adjusted according to S2 method, sight datum mark observed reading, adjust the height of tripod base, to the position that the vertical pivot of measuring instrument is orthogonal with initial baseline plane, measuring instrument around vertical pivot rotate a circle the inswept plane of telescope collimation axis it is parallel with initial baseline plane be the first dynamic benchmark plane.
Description
Technical field
The present invention relates to water project technical field of construction, and in particular to a kind of measurement side for setting up dynamic benchmark plane
Method.
Background technology
Carried out in rivers,lakes and seas dynamic environment waterborne the tall and slender structure assembly such as Large Steel open caisson connect it is high measurement is installed, it is large-scale
It is as follows that seabed tunnel immersed tube tube coupling measures the survey engineering construction such as tower demarcation waterborne and the positioning of Large Steel Sarasota above-water hoisting：1) sink
Well basis is the common type in bridge deepwater foundation, and construction technology is generally that bottom uses steel caisson structure, and top is reinforced concrete
Caisson structure, because whole steel open caisson size is big, weight weight, it has not been convenient to whole Transporting, typically after factory's merogenesis piecemeal processing,
Transport progress assembly at bridge location and connect height, the center of open caisson and gradient are constantly in variable condition, it is impossible to using conventional
Measuring method carry out construction lofting；2), it is necessary to installed in tube coupling top after large-scale seabed tunnel immersed tube tube coupling is prefabricated in the factory
GNSS measurement towers on face are demarcated, the accurate three-dimensional space for determining tower top GNSS antenna and prism centers in tube coupling coordinate system
Between coordinate, but on tube coupling bubbles through the water column, it is impossible to measured using conventional measuring method；3) in marine bridge steel cable tower crane
During dress, two crane barges point-blank, during lifting must assure that the axis of two crane barges at one with laying the barge of cable wire tower
, it is necessary to calculate the grid deviation between two platform axis to adjust the relative position of two platforms to keep two axis on straight line
Line is conllinear, and two crane barge platforms are constantly in variable condition on the water surface, it is impossible to measured using conventional method.
In above-mentioned Project case, construction operation platform is on the water surface of nonstatic, due to construction operation platform all the time
Among ceaselessly rocking, it is impossible to complete instrument and accurately flatten, that is, allow to complete instrument leveling, can not also make instrument vertical pivot
Perpendicular to construction operation platform.Therefore, it is impossible to dispose spirit level, warp using general measuring method is correct on floating platform in water
Latitude instrument or total powerstation are measured, it is impossible to for needed for the surveying and locating such as assembled steel open caisson on dynamic platform is provided parallel to construction
The reference plane of job platform plane.
In the prior art in order to solve the above technical problems, to be typically chosen in calm, slack period, platform shaking volume smaller
Period, using method placement spirit level, theodolite or the total powerstation on dynamic platform on the water of repeated multiple times leveling centering, with
Obtain the dynamic benchmark plane for being approximately parallel to faceplate.But because construction operation platform can not possibly be totally stationary, therefore
The precision of this method largely relies on the experience of instrumentation person, there is obvious approximation, is typically only capable to obtain
With the approximately parallel dynamic benchmark plane of faceplate, and repeated multiple times convergence is needed, operating efficiency is low.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of survey for setting up dynamic benchmark plane
Amount method, results in the dynamic benchmark plane parallel with dynamic platform initial baseline face, realizes accurate measurement, improves operation effect
Rate.
To achieve the above objectives, the present invention is adopted the technical scheme that：
A kind of measuring method for setting up dynamic benchmark plane, is comprised the following steps that：
S1, with the central point O of the 1st dynamic platform1Centered on set up reference frame, the reference frame includes being located at the 1st
The four axistyle point of dynamic platform is respectively A1、B1、C1、D1With the datum mark mark being arranged on the axis point, the four axistyle
Point is on four summits of same rhombus, the central point O of the central point of the rhombus and the 1st dynamic platform1Overlap；
S2, in the central point O of the 1st dynamic platform1Place's placement spirit level, adjusts the tripod base of the spirit level extremely
The straight line parallel wherein where two foot screws of the tripod base is located in a pair of linea angulatas of the rhombus, and the 3rd foot screw
On another diagonal of the rhombus；
S3, erects scale on the datum mark mark, and the spirit level sights the scale to datum mark mark described in four
Will is observed reading, and the height of datum mark mark is equal to the reading of the spirit level described in adjustment four, four institutes after adjustment
Datum mark mark is stated as the datum mark respectively a of the 1st dynamic platform1、b1、c1、d1, the datum mark of the 1st dynamic platform described in four
The plane at place is the initial baseline plane of the 1st dynamic platform；
S4, the central point O of the 1st dynamic platform1Place's placement measuring instrument, the measurement is adjusted according to S2 method of adjustment
After the tripod base of instrument, the height of the foot screw of the tripod base is adjusted, until the vertical pivot of the measuring instrument is moved with the described 1st
The orthogonal position of the initial baseline plane of state platform, the telescope of the measuring instrument is swept around the vertical pivot telescope collimation axis that rotates a circle
The plane crossed is parallel with the initial baseline plane of the 1st dynamic platform, as the first dynamic benchmark plane.
On the basis of above-mentioned technical proposal, in addition to S5, steel open caisson is assembled on the water and connects in high measurement, and N-1 is moved
After the completion of state platform construction, N is not less than 2, and the measuring method of the dynamic benchmark plane of N dynamic platforms is comprised the following steps that：
S51, the steel open caisson top plane i.e. N dynamics are projected to by the four axistyle point positioned at N-1 dynamic platforms upwards
Platform, the four axistyle point A of N-1 dynamic platformsN-1、BN-1、CN-1、DN-1It is incident upon the four axistyle point difference on N dynamic platforms
For AN、BN、CN、DN, four axistyle point described in four on N dynamic platforms is respectively on four summits of same rhombus, the rhombus
Central point be N dynamic platforms central point ON；
S52, by the datum mark a of N-1 dynamic platformsN-1、bN-1、cN-1、dN-1Projection is to the steel open caisson outer wall and along institute
State steel open caisson outer wall vertical and move up the datum mark respectively a that same distance obtains N dynamic platformsN、bN、cN、dN；
S53, plane where the datum mark of four N dynamic platforms is the initial baseline plane of the N dynamic platforms, detection
The flatness of the initial baseline plane of the N dynamic platforms；
S54, in the central point O of the N dynamic platformsNPlace's placement measuring instrument, and adjust institute according to S2 method of adjustment
After the tripod base for stating measuring instrument, the height of the foot screw of the tripod base is adjusted, until vertical pivot and the institute of the measuring instrument
State the orthogonal position of the initial baseline plane of N dynamic platforms, the telescope of the measuring instrument rotates a circle telescope around vertical pivot
The plane that collimation axis is inswept is parallel with the initial baseline plane of the N dynamic platforms, as described N dynamic benchmark planes；
S6, repeat step S5, complete steel open caisson assembly waterborne and connect high measurement.
On the basis of above-mentioned technical proposal, in the S1, the four axistyle point of the 1st dynamic platform is respectively A1、B1、
C1、D1Relative position relation meet：A1B1With C1D1Intersection point be the 1st dynamic platform central point O1, and A1O1=O1B1,
C1O1=O1D1。
On the basis of above-mentioned technical proposal, in the S1, the four axistyle point A of the 1st dynamic platform1、B1、C1、D1's
Relative position relation is met：A1B1With C1D1Intersection point be the 1st dynamic platform central point O1, and A1O1=O1B1=C1O1=
O1D1。
The step of initial baseline plane is obtained on the basis of above-mentioned technical proposal, in the S3 includes：
S31, in central point O1Place's placement spirit level, the spirit level reads the reading difference of scale on datum mark described in four
For la1、lb1、lc1、ld1, the average value of rod reading is used as benchmark scale reading value l on datum mark described in calculating four1=(la1+
lb1+lc1+ld1)/4；
S32, sets the height value l=l of initial baseline plane1- Δ, wherein l are the height value of initial baseline plane, and Δ is
Initial baseline plane raises value relative to the 1st dynamic platform；
S34, adjusts the height of the datum mark mark, and the rod reading to the spirit level is equal to the initial baseline of setting
The height value l of plane, the position of the datum mark mark is as datum mark, and the plane where datum mark described in four is first primordium
Directrix plane.
On the basis of above-mentioned technical proposal, if the measuring instrument in S4 is tripod base in spirit level or theodolite, S4
The method of adjustment of height include：
S411, disposes spirit level or theodolite in central point, scale, and the perpendicular disk of theodolite is erect on the datum mark
Reading is (90 ° of+i) or (270 ° of-i), wherein, i is index error of vertical circle；
S412, spirit level or theodolite are successively read the reading of scale described in four, and l is designated as respectivelya、lb、lc、ld；
S413, judges whether the reading of scale meets the first formula：
la+lb=lc+ld；
If being unsatisfactory for the first formula, repeatedly datum mark described in S3 step measure setup four；
If meeting the first formula, judge whether measurement result meets the second formula：
la=lb=lc=ld；
If being unsatisfactory for the second formula, the height of foot screw of the tripod base of the spirit level or theodolite is adjusted to completely
The second formula of foot.
On the basis of above-mentioned technical proposal, if the measuring instrument in S4 is the height of tripod base in total powerstation, S4
Method of adjustment includes：
S421, L is designated as setting up prism described in four on datum mark and measuring prism height respectivelya、Lb、Lc、Ld；
S422, central point dispose total powerstation, obtain total powerstation center to each datum mark prism centers level away from
From being designated as S respectivelya、Sb、Sc、Sd, vertical angle is designated as ɑ respectivelya、ɑb、ɑc、ɑdH is designated as respectively with the discrepancy in elevationa、Hb、Hc、Hd；
S423, judges whether measured value meets the 3rd formula：
(La-Satanαa)+(Lb-Sbtanαb)=(Lc-Sctanαc)+(Ld-Sdtanαd)
If being unsatisfactory for the 3rd formula, repeatedly datum mark described in S3 step measure setup four；
If meeting the 3rd formula, judge whether measurement result meets the 4th formula：
La-Satanαa=Lb-Sbtanαb=Lc-Sctanαc=Ld-Sdtanαd；
If being unsatisfactory for the 4th formula, the height of the foot screw of the tripod base of the total powerstation is adjusted, to satisfaction the 4th
Formula.
Compared with prior art, the advantage of the invention is that：
A kind of measuring method for setting up dynamic benchmark plane of the present invention is caused by adjusting the vertical pivot gradient of measuring instrument
Measuring instrument vertical pivot is perpendicular to initial baseline plane, and the measuring instrument telescope inswept plane of telescope collimation axis that rotates a circle is obtained
Dynamic benchmark plane, it is adaptable to which steel open caisson assembly waterborne measures tower beacon location survey amount and large-scale with high measurement, large-scale immersed tube top surface is connect
The special survey engineerings such as cable wire tower above-water hoisting positioning, with theory is tight, principle is simple, by destabilizing factors such as extraneous stormy waves
Influence that small, the selectable effective operation period is more, measurement accuracy high, execute-in-place is easy, speed is fast and easy to implement etc. significantly
Advantage.
Brief description of the drawings
Fig. 1 is the method flow diagram of the embodiment of the present invention；
The flow chart that Fig. 2 is step S5 in the embodiment of the present invention；
Fig. 3 is the schematic diagram of placement measuring instrument in the embodiment of the present invention；
Fig. 4 is the Implant position schematic diagram of the tripod base of measuring instrument in the embodiment of the present invention；
Fig. 5 is the Implant position schematic diagram of the tripod base of measuring instrument in the embodiment of the present invention；
Fig. 6 is the measuring state schematic diagram of spirit level or theodolite in the embodiment of the present invention；
Fig. 7 is the measuring state schematic diagram of spirit level or theodolite in the embodiment of the present invention；
Fig. 8 is the measuring state schematic diagram of total powerstation in the embodiment of the present invention；
Fig. 9 is the measuring state schematic diagram of total powerstation in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Shown in Figure 1, the embodiment of the present invention provides a kind of measuring method for setting up dynamic benchmark plane, and specific steps are such as
Under：
S1, with the central point O of the 1st dynamic platform1Centered on set up reference frame, reference frame includes being located at the 1st dynamic
The four axistyle point of platform is respectively A1、B1、C1、D1With the datum mark mark being arranged on axis point, four axistyle point is located at same water chestnut
On the summit of shape, the central point O of the central point of rhombus and the 1st dynamic platform1Overlap, in the four axistyle point minute of the 1st dynamic platform
Wei not A1、B1、C1、D1Relative position relation meet：A1B1With C1D1Intersection point be the 1st dynamic platform central point O1, and A1O1
=O1B1, C1O1=O1D1, the four axistyle point A of the 1st dynamic platform according to engineer applied demand, can also be designed1、B1、C1、D1's
Relative position relation is met：A1B1With C1D1Intersection point be the 1st dynamic platform central point O1, and A1O1=O1B1=C1O1=
O1D1So that in-site measurement more conveniently and quickly, welds datum mark marker post, wherein benchmark on axis point in the present embodiment
Point mark, which can be welded to the hemispherical top surface on platform top surface or marker post, to be needed to use paint to draw at height
Markings or marker post block after the spherical top surface that is polished into；
S2, referring to Fig. 3 the 1st dynamic platform central point O1Spirit level is installed at place, referring to shown in Fig. 4 and Fig. 5, adjusts water
The tripod base of quasi- instrument to wherein two foot screws of tripod base line parallel to rhombus a pair of linea angulatas, the of tripod base
Three foot screws are located on another diagonal of rhombus；
S3, erects scale on datum mark mark, adjusts the height of four datum mark marks, until the telescope of spirit level
Reading on four datum marks that pan is read for one week on scale is equal, and the datum mark mark after adjustment is used as the 1st dynamic platform
Datum mark, the datum mark of 4 the 1st dynamic platforms is respectively a1、b1、c1、d1, the plane where the datum mark of 4 the 1st dynamic platforms
That is the initial baseline plane of the 1st dynamic platform；
S31, referring to shown in Fig. 6 and Fig. 7, the reading that spirit level reads scale on four datum marks is respectively la1、lb1、lc1、
ld1, calculate four rod readings average value be used as benchmark scale reading value l1=(la1+lb1+lc1+ld1)/4；
S32, sets the height value l=l of initial baseline plane1- Δ, wherein l are the height value of initial baseline plane, and Δ is
Initial baseline plane raises value relative to the 1st dynamic platform, with reference to field condition and is actually needed, the value of Δ for 1~
10cm；
S34, the reading for adjusting height value to the spirit level of four datum mark marks is equal to the height of the initial baseline plane set
Angle value, the plane where four datum marks is initial baseline plane；
S4, in the central point O of the 1st dynamic platform1Place's placement measuring instrument, and adjusted with reference to S2 tripod base method of adjustment
The tripod base of measuring instrument, adjusts the height of the foot screw of the tripod base, until the vertical pivot and the 1st dynamic platform of measuring instrument
The orthogonal position of initial baseline plane, the telescope of measuring instrument around vertical pivot rotate a circle the inswept plane of telescope collimation axis with
The initial baseline plane of 1st dynamic platform is parallel, as the first dynamic benchmark plane.
If the measuring instrument in S4, which is the method for adjustment of the height of tripod base in spirit level or theodolite, S4, to be included：
S411, disposes spirit level or theodolite in central point, scale, and the perpendicular disk reading of theodolite is erect on datum mark
For (90 ° of+i) or (270 ° of-i), wherein, i is index error of vertical circle；
S412, spirit level or theodolite are successively read the reading of four scales, and l is designated as respectivelya、lb、lc、ld；
S413, judges whether the reading of scale meets the first formula：
la+lb=lc+ld；
If being unsatisfactory for the first formula, the repeatedly S3 datum mark of step measure setup four, untill the first formula is met；
If meeting the first formula, judge whether measurement result meets the second formula：
la=lb=lc=ld；
If being unsatisfactory for the second formula, the height of the foot screw of the tripod base of adjustment spirit level or theodolite is to meeting the
Two formula.
Referring to shown in Fig. 8 and Fig. 9, if the measuring instrument in S4 is the adjustment side of the height of tripod base in total powerstation, S4
Method includes：
S421, on four datum marks set up prism and measure prism height be designated as L respectivelya、Lb、Lc、Ld；
S422, total powerstation is disposed in central point, obtains total powerstation center to the horizontal range point of each datum mark prism centers
S is not designated as ita、Sb、Sc、Sd, vertical angle is designated as ɑ respectivelya、ɑb、ɑc、ɑdH is designated as respectively with the discrepancy in elevationa、Hb、Hc、Hd；
S423, judges whether measured value meets the 3rd formula：
(La-Satanαa)+(Lb-Sbtanαb)=(Lc-Sctanαc)+(Ld-Sdtanαd)
If being unsatisfactory for the 3rd formula, the repeatedly S3 datum mark of step measure setup four, untill the 3rd formula is met；
If meeting the 3rd formula, judge whether measurement result meets the 4th formula：
La-Satanαa=Lb-Sbtanαb=Lc-Sctanαc=Ld-Sdtanαd；
If being unsatisfactory for the 4th formula, the height of the foot screw of the tripod base of total powerstation is adjusted, to the 4th formula of satisfaction.
Under use environment for that need not carry out connecing high assembly, S1 to S4 method can be used to determine that dynamic benchmark is put down
Face, reduced in work progress is influenceed by uncertain factors such as extraneous stormy waves, and measurement accuracy is high, and execute-in-place is easy, speed
It is fast and easy to implement.
It is shown in Figure 2, in the environment of needing progress to connect high assembling construction, with large-scale, extra-large bridge engineering water
Steel open caisson is connect exemplified by high measurement, further comprising the steps of：
S5, steel open caisson is assembled on the water and connects in high measurement, and after the completion of the construction of N-1 dynamic platforms, N is not less than 2, N
The measuring method of the dynamic benchmark plane of dynamic platform, is comprised the following steps that：
S51, steel open caisson top plane i.e. N dynamic platforms are projected to by the four axistyle point positioned at N-1 dynamic platforms upwards,
Obtain the four axistyle point A of N-1 dynamic platformsN-1、BN-1、CN-1、DN-1The four axistyle point being incident upon on N dynamic platforms is respectively
AN、BN、CN、DN, the four axistyle point on four N dynamic platforms is located on four summits of same rhombus, and the central point of the rhombus is
The central point O of N dynamic platformsN；
S52, by the datum mark a of N-1 dynamic platformsN-1、bN-1、cN-1、dN-1Projection is to steel open caisson outer wall and along steel open caisson
Outer wall vertical moves up the datum mark respectively a that same distance obtains N dynamic platformsN、bN、cN、dN；
Plane where S53, four datum marks is the initial baseline plane of N dynamic platforms, detects the initial of N dynamic platforms
The flatness of datum plane；
S54, in the central point O of N dynamic platformsNPlace's placement measuring instrument, and adjusted with reference to S2 tripod base method of adjustment
The tripod base of whole measuring instrument, according to the step of S4 adjust tripod base foot screw height, until measuring instrument vertical pivot with
The orthogonal position of the initial baseline planes of N dynamic platforms, the telescope of measuring instrument rotates a circle telescope collimation axis around vertical pivot
Inswept plane is parallel with the initial baseline plane of N dynamic platforms, as N dynamic benchmarks plane；
S6, repeat step S5, complete steel open caisson assembly waterborne and connect high measurement.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (7)
1. a kind of measuring method for setting up dynamic benchmark plane, it is characterised in that comprise the following steps that：
S1, with the central point O of the 1st dynamic platform1Centered on set up reference frame, the reference frame includes being located at the 1st dynamic flat
The four axistyle point of platform is respectively A1、B1、C1、D1With the datum mark mark being arranged on the axis point, the four axistyle point is located at
On four summits of same rhombus, the central point O of the central point of the rhombus and the 1st dynamic platform1Overlap；
S2, in the central point O of the 1st dynamic platform1Place's placement spirit level, adjusts the tripod base of the spirit level to described
The straight line parallel wherein where two foot screws of tripod base is in a pair of linea angulatas of the rhombus, and the 3rd foot screw is positioned at described
On another diagonal of rhombus；
S3, erects scale on the datum mark mark, and the spirit level sights the scale and datum mark mark described in four is entered
Row observed reading, the height of datum mark mark is equal to the reading of the spirit level described in adjustment four, base described in four after adjustment
Indicate the datum mark respectively a as the 1st dynamic platform on schedule1、b1、c1、d1, the datum mark place of the 1st dynamic platform described in four
Plane be the 1st dynamic platform initial baseline plane；
S4, the central point O of the 1st dynamic platform1Place's placement measuring instrument, the measuring instrument is adjusted according to S2 method of adjustment
After tripod base, the height of the foot screw of the tripod base is adjusted, until the vertical pivot of the measuring instrument and the described 1st dynamic are flat
The orthogonal position of the initial baseline plane of platform, the telescope of the measuring instrument is inswept around the vertical pivot telescope collimation axis that rotates a circle
Plane is parallel with the initial baseline plane of the 1st dynamic platform, as the first dynamic benchmark plane.
2. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that also including S5,
Steel open caisson waterborne is assembled and connects in high measurement, and after the completion of the construction of N-1 dynamic platforms, N is not less than 2, the dynamic of N dynamic platforms
The measuring method of datum plane, is comprised the following steps that：
S51, the steel open caisson top plane i.e. N dynamic platforms are projected to by the four axistyle point positioned at N-1 dynamic platforms upwards,
The four axistyle point A of N-1 dynamic platformsN-1、BN-1、CN-1、DN-1It is incident upon the four axistyle point respectively A on N dynamic platformsN、
BN、CN、DN, the four axistyle point described in four on N dynamic platforms is located on four summits of same rhombus respectively, in the rhombus
Heart point is the central point O of N dynamic platformsN；
S52, by the datum mark a of N-1 dynamic platformsN-1、bN-1、cN-1、dN-1Projection is to the steel open caisson outer wall and along the steel
Open caisson outer wall vertical moves up the datum mark respectively a that same distance obtains N dynamic platformsN、bN、cN、dN；
S53, plane where the datum mark of four N dynamic platforms is the initial baseline plane of the N dynamic platforms, and detection is described
The flatness of the initial baseline plane of N dynamic platforms；
S54, in the central point O of the N dynamic platformsNPlace's placement measuring instrument, and adjust the measurement according to S2 method of adjustment
After the tripod base of instrument, the height of the foot screw of the tripod base is adjusted, until the vertical pivot of the measuring instrument is moved with the N
The orthogonal position of the initial baseline plane of state platform, the telescope of the measuring instrument is swept around the vertical pivot telescope collimation axis that rotates a circle
The plane crossed is parallel with the initial baseline plane of the N dynamic platforms, as described N dynamic benchmark planes；
S6, repeat step S5, complete steel open caisson assembly waterborne and connect high measurement.
3. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that in the S1, institute
State the four axistyle point respectively A of the 1st dynamic platform1、B1、C1、D1Relative position relation meet：A1B1With C1D1Intersection point be institute
State the central point O of the 1st dynamic platform1, and A1O1=O1B1, C1O1=O1D1。
4. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that in the S1, institute
State the four axistyle point A of the 1st dynamic platform1、B1、C1、D1Relative position relation meet：A1B1With C1D1Intersection point for the described 1st move
The central point O of state platform1, and A1O1=O1B1=C1O1=O1D1。
5. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that obtained in the S3
The step of initial baseline plane, includes：
S31, in central point O1Place's placement spirit level, the reading of scale is respectively on datum mark described in the spirit level reading four
la1、lb1、lc1、ld1, the average value of rod reading is used as benchmark scale reading value l on datum mark described in calculating four1=(la1+lb1+
lc1+ld1)/4；
S32, sets the height value l=l of initial baseline plane1- Δ, wherein l are the height value of initial baseline plane, and Δ is initial
Datum plane raises value relative to the 1st dynamic platform；
S34, adjusts the height of the datum mark mark, and the rod reading to the spirit level is equal to the initial baseline plane of setting
Height value l, the position of the datum mark mark as datum mark, the plane where datum mark described in four be initial baseline put down
Face.
6. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that if the measurement in S4
Instrument is spirit level or theodolite, then the method for adjustment of the height of tripod base includes in S4：
S411, disposes spirit level or theodolite in central point, scale, and the perpendicular disk reading of theodolite is erect on the datum mark
For (90 ° of+i) or (270 ° of-i), wherein, i is index error of vertical circle；
S412, spirit level or theodolite are successively read the reading of scale described in four, and l is designated as respectivelya、lb、lc、ld；
S413, judges whether the reading of scale meets the first formula：
la+lb=lc+ld；
If being unsatisfactory for the first formula, repeatedly datum mark described in S3 step measure setup four；
If meeting the first formula, judge whether measurement result meets the second formula：
la=lb=lc=ld；
If being unsatisfactory for the second formula, the height of foot screw of the tripod base of the spirit level or theodolite is adjusted to meeting the
Two formula.
7. a kind of measuring method for setting up dynamic benchmark plane as claimed in claim 1, it is characterised in that：If the measurement in S4
Instrument is total powerstation, then the method for adjustment of the height of tripod base includes in S4：
S421, L is designated as setting up prism described in four on datum mark and measuring prism height respectivelya、Lb、Lc、Ld；
S422, total powerstation is disposed in central point, obtains total powerstation center to the horizontal range point of each datum mark prism centers
S is not designated as ita、Sb、Sc、Sd, vertical angle is designated as ɑ respectivelya、ɑb、ɑc、ɑdH is designated as respectively with the discrepancy in elevationa、Hb、Hc、Hd；
S423, judges whether measured value meets the 3rd formula：
(La-Satanαa)+(Lb-Sbtanαb)=(Lc-Sctanαc)+(Ld-Sdtanαd)
If being unsatisfactory for the 3rd formula, repeatedly datum mark described in S3 step measure setup four；
If meeting the 3rd formula, judge whether measurement result meets the 4th formula：
La-Satanαa=Lb-Sbtanαb=Lc-Sctanαc=Ld-Sdtanαd；
If being unsatisfactory for the 4th formula, the height of the foot screw of the tripod base of the total powerstation is adjusted, to the 4th formula of satisfaction.
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| CN113819884A (en) * | 2021-09-24 | 2021-12-21 | 中海石油(中国)有限公司 | Vertical displacement monitoring system and method for submarine oil production caisson device |
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| CN113819884B (en) * | 2021-09-24 | 2023-11-21 | 中海石油(中国)有限公司 | Vertical displacement monitoring system and method for submarine oil extraction caisson device |
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