CN109211167A - A kind of tunnel double-lining thickness accurate detecting method based on function curve fitting - Google Patents
A kind of tunnel double-lining thickness accurate detecting method based on function curve fitting Download PDFInfo
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- CN109211167A CN109211167A CN201811022786.1A CN201811022786A CN109211167A CN 109211167 A CN109211167 A CN 109211167A CN 201811022786 A CN201811022786 A CN 201811022786A CN 109211167 A CN109211167 A CN 109211167A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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Abstract
The invention discloses a kind of tunnel double-lining thickness accurate detecting methods based on function curve fitting, establish the canonical function curve of Tunnel Second Lining, determine the three axis standard coordinate value of design of any point on secondary lining outer profile curve；Acquire the triaxial coordinate value of datum mark；On the basis of known datum point triaxial coordinate value, the triaxial coordinate value of Tunnel Second Lining test point is measured；According to the X axis coordinate value of each test point, obtains Y-axis, the Z axis design coordinate value of corresponding test point, compared with the Z axis of actual measurement, Y axis coordinate value, calculate the offset difference of corresponding test point, obtain the difference of Tunnel Second Lining thickness and offset.The present invention is based on function curve fittings, improve the accuracy of Tunnel Second Lining thickness difference and offset difference.
Description
Technical field
The present invention relates to a kind of tunnel double-lining thickness accurate detecting methods based on function curve fitting.
Background technique
China is in the great development period of infrastructure, no matter builds in the construction of work China Democratic National Construction Association or bridge, tunnel, road etc.
If in the process, requiring to carry out detection examination to engineering is completed, to guarantee construction quality safety.Along with China express railway
Flourish, tunnel has been increasingly becoming constructing emphases.During tunnel construction, to ensure the permanent safety in tunnel, two
Secondary lining construction quality it is good with badly have become a deciding factor.During constructing tunnel, Tunnel Second Lining because
Two lining trolleys deviate tunnel middle line, and perhaps other construction factors often result in Tunnel Second Lining thickness deficiency or secondary lining
The problems such as offset, has greatly threatened the safety in tunnel.
Summary of the invention
The present invention to solve the above-mentioned problems, propose it is a kind of based on function curve fitting tunnel double-lining thickness accurately examine
Survey method, the present invention can well solve problems, improve the quality and safety in tunnel.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of tunnel double-lining thickness accurate detecting method based on function curve fitting, comprising the following steps:
The canonical function curve for establishing Tunnel Second Lining determines the design three of any point on secondary lining outer profile curve
Axis standard coordinate value；
Acquire the triaxial coordinate value of datum mark；
On the basis of known datum point triaxial coordinate value, the triaxial coordinate value of Tunnel Second Lining test point is measured；
According to the X axis coordinate value of each test point, Y-axis, the Z axis design coordinate value of corresponding test point are obtained, with practical survey
The Z axis of amount, Y axis coordinate value compare, and calculate the offset difference of corresponding test point, obtain Tunnel Second Lining thickness and partially
The difference of shifting.
Further, according to the central coordinate of circle and radius in tunnel in design drawing, Tunnel Second Lining outer profile is established
Function curve.
Further, using real-time dynamic carrier phase difference technology, the triaxial coordinate value of datum mark is acquired.
Further, the triaxial coordinate value that test point in Tunnel Second Lining is gone out using total station survey, compares each inspection
Design triaxial coordinate value of the measuring point on function curve, obtains the difference of the two, and then obtains the thickness difference of Tunnel Second Lining
Value and offset difference.
A kind of tunnel double-lining thickness accurate detection system based on function curve fitting, runs on processor or memory
On, it is configured as executing to give an order:
The canonical function curve for establishing Tunnel Second Lining determines the design three of any point on secondary lining outer profile curve
Axis standard coordinate value；
Acquire the triaxial coordinate value of datum mark；
On the basis of known datum point triaxial coordinate value, the triaxial coordinate value of Tunnel Second Lining test point is measured；
According to the X axis coordinate value of each test point, Y-axis, the Z axis design coordinate value of corresponding test point are obtained, with practical survey
The Z axis of amount, Y axis coordinate value compare, and calculate the offset difference of corresponding test point, obtain Tunnel Second Lining thickness and partially
The difference of shifting.
Since the contour line of Tunnel Second Lining is made of single or multiple circles, three-dimensional system of coordinate is constructed, is considered existing
Field actual measurement condition, determines coordinate origin, according to central coordinate of circle, radius and the range of circle each in design data come really
Surely round equation, can construct the Tunnel Second Lining canonical function curve of single section.
The secondary lining canonical function curve for relying on single section stretches along tunnel excavation direction, that is, can determine secondary lining
Build the triaxial coordinate value of any point on surface.
Monitoring point is laid on secondary lining surface, and coordinate origin is gone into corresponding monitoring point using total station, it is basic herein
On, monitoring point is measured, the D coordinates value of the monitoring point is obtained；Successively multiple monitoring points are measured, are obtained more
The triaxial coordinate value of a monitoring point constructs secondary lining Ditermination of cam profile, is compared with secondary lining canonical function curve,
The position deviation value and thickness deviation values of Tunnel Second Lining can be obtained.
Compared with prior art, the invention has the benefit that
1, it is fitted based on function curve, improves the accuracy of Tunnel Second Lining thickness difference and offset difference；
2, the artificial troublesome operation for using detections of radar Tunnel Second Lining thickness is avoided, the effect of constructing tunnel is improved
Rate accelerates Tunnel Construction Schedule；
3, the permanence that can admirably guarantee tunnel quality and safety, extends the use in tunnel to a certain extent
Service life.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is detection process schematic diagram of the invention；
Specific embodiment:
The invention will be further described with embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this hair
Bright each component or component structure relationship and the relative of determination, not refer in particular to either component or element in the present invention, cannot understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and indicate may be a fixed connection,
It is also possible to be integrally connected or is detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the present invention as the case may be,
It is not considered as limiting the invention.
As shown in Figure 1, a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting, according to design drawing
In, the data such as the center of circle, the radius size in tunnel establish the curvilinear function of Tunnel Second Lining profile in mat l ab software,
Obtain the design triaxial coordinate value of each point.It is mainly total station that the invention, which is related to instrument, and site operation personnel are obtaining benchmark
On the basis of point three axis (X-axis, Y-axis, Z axis) coordinate value, three axis of monitoring point in Tunnel Second Lining are gone out using total station survey
Coordinate value compares the design triaxial coordinate value of the point in mat l ab software, obtains coordinate difference of the two in three reference axis
Value, and then obtain the thickness difference of Tunnel Second Lining.
Detection method is fitted based on function curve.
A kind of tunnel double-lining thickness accurate detecting method based on function curve fitting, which is characterized in that including following step
It is rapid:
A. the canonical function curve for establishing Tunnel Second Lining, according to the central coordinate of circle in tunnel, radius etc. in design drawing
Data establish the function curve of Tunnel Second Lining outer profile in mat l ab software, obtain secondary lining outer profile curve
The three axis standard coordinate value of design of upper any point；
B. acquire three axis of datum mark (X-axis, Y-axis, Z axis) coordinate value, using RTK (Rea l-t ime ki nemat i c,
Dynamic in real time) carrier phase difference technology, acquire the triaxial coordinate value of datum mark；
C. the triaxial coordinate value for measuring Tunnel Second Lining test point, using total station, in known datum point triaxial coordinate
On the basis of value, the triaxial coordinate value of Tunnel Second Lining test point is measured；
D. measurement result is analyzed, according to the X axis coordinate value of a certain test point, obtains the test point in mat l ab software
Y-axis, Z axis design coordinate value, compared with the Z axis of actual measurement, Y axis coordinate value, obtain the offset difference of the test point,
And then it can obtain the difference of Tunnel Second Lining thickness and offset.
Total station, RTK in the present invention are existing thing, and details are not described herein.
Since the contour line of Tunnel Second Lining is made of single or multiple circles, three-dimensional system of coordinate is constructed, is considered existing
Field actual measurement condition, determines coordinate origin, according to central coordinate of circle, radius and the range of circle each in design data come really
Surely round equation, can construct the Tunnel Second Lining canonical function curve of single section.
The secondary lining canonical function curve for relying on single section stretches along tunnel excavation direction, that is, can determine secondary lining
Build the triaxial coordinate value of any point on surface.
Monitoring point is laid on secondary lining surface, and coordinate origin is gone into corresponding monitoring point using total station, it is basic herein
On, monitoring point is measured, the D coordinates value of the monitoring point is obtained；Successively multiple monitoring points are measured, are obtained more
The triaxial coordinate value of a monitoring point constructs secondary lining Ditermination of cam profile, is compared with secondary lining canonical function curve,
The position deviation value and thickness deviation values of Tunnel Second Lining can be obtained.
The present invention establishes Tunnel Second Lining outer profile function curve, which can be fine according to Tunnel Design drawing
Ground shows the design triaxial coordinate value of Tunnel Second Lining outer profile point.Using instruments such as RTK, total stations, tunnel is measured
The triaxial coordinate value of test point on secondary lining compares design triaxial coordinate value of each test point on function curve, obtains
The difference of the two, and then the thickness difference and offset difference of you can get it Tunnel Second Lining.According to the difference, constructing tunnel
Personnel can rectify and improve Tunnel Second Lining, to guarantee safety and reliability to secondary lining is arrived.
The present invention has studied a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting, solves tunnel
The problem of secondary lining thickness is insufficient and positional shift, improves the accuracy of thickness difference and cheap difference.Using letter
The method of curve fit detects Tunnel Second Lining thickness, closer with engineering practice compared with forefathers' research, is obtained
Secondary lining thickness difference is more accurate, improves the construction quality of tunnel construction.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (8)
1. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting, it is characterized in that: the following steps are included:
The canonical function curve for establishing Tunnel Second Lining determines the three axis mark of design of any point on secondary lining outer profile curve
Quasi coordinates value；
Acquire the triaxial coordinate value of datum mark；
On the basis of known datum point triaxial coordinate value, the triaxial coordinate value of Tunnel Second Lining test point is measured；
According to the X axis coordinate value of each test point, Y-axis, the Z axis design coordinate value of corresponding test point, the Z with actual measurement are obtained
Axis, Y axis coordinate value compare, and calculate the offset difference of corresponding test point, obtain Tunnel Second Lining thickness and offset
Difference.
2. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as described in claim 1, feature
It is: according to the central coordinate of circle and radius in tunnel in design drawing, establishes the function curve of Tunnel Second Lining outer profile.
3. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as described in claim 1, feature
It is: utilizes real-time dynamic carrier phase difference technology, acquire the triaxial coordinate value of datum mark.
4. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as described in claim 1, feature
It is: goes out the triaxial coordinate value of test point in Tunnel Second Lining using total station survey, compares each test point in function curve
On design triaxial coordinate value, the difference both obtained, and then obtain the thickness difference and offset difference of Tunnel Second Lining.
5. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as described in claim 1, feature
It is: since the contour line of Tunnel Second Lining is made of single or multiple circles, constructs three-dimensional system of coordinate, considers that scene is practical
Measuring condition determines coordinate origin, round to determine according to central coordinate of circle, radius and the range of circle each in design data
Equation can construct the Tunnel Second Lining canonical function curve of single section.
6. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as claimed in claim 5, feature
It is: relies on the secondary lining canonical function curve of single section, is stretched along tunnel excavation direction, that is, can determine secondary lining surface
Any point triaxial coordinate value.
7. a kind of tunnel double-lining thickness accurate detecting method based on function curve fitting as described in claim 1, feature
It is: lays monitoring point on secondary lining surface and coordinate origin is gone into corresponding monitoring point using total station, it is on this basis, right
Monitoring point measures, and obtains the D coordinates value of the monitoring point；Successively multiple monitoring points are measured, obtain multiple monitorings
The triaxial coordinate value of point constructs secondary lining Ditermination of cam profile, is compared, can obtain with secondary lining canonical function curve
To the position deviation value and thickness deviation values of Tunnel Second Lining.
8. it is a kind of based on function curve fitting tunnel double-lining thickness accurate detection system, it is characterized in that: run on processor or
On memory, it is configured as executing to give an order:
The canonical function curve for establishing Tunnel Second Lining determines the three axis mark of design of any point on secondary lining outer profile curve
Quasi coordinates value；
Acquire the triaxial coordinate value of datum mark；
On the basis of known datum point triaxial coordinate value, the triaxial coordinate value of Tunnel Second Lining test point is measured；
According to the X axis coordinate value of each test point, Y-axis, the Z axis design coordinate value of corresponding test point, the Z with actual measurement are obtained
Axis, Y axis coordinate value compare, and calculate the offset difference of corresponding test point, obtain Tunnel Second Lining thickness and offset
Difference.
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