CN110130903A - The steady-state target bias system and method for shield tunnel construction correction - Google Patents
The steady-state target bias system and method for shield tunnel construction correction Download PDFInfo
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- CN110130903A CN110130903A CN201910460387.1A CN201910460387A CN110130903A CN 110130903 A CN110130903 A CN 110130903A CN 201910460387 A CN201910460387 A CN 201910460387A CN 110130903 A CN110130903 A CN 110130903A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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Abstract
The present invention relates to the steady-state target biasing means and system of a kind of correction of shield tunnel construction, this method comprises: obtaining the design axis and real-time offsets information of constructing tunnel；According to the current stroke of shield machine, calculates shield machine notch and shield tail is respectively positioned on action of the segment assembly axis centre away from design axis when on design axis；Corresponding proportionality coefficient is set according to the size of shield machine, the action is converted to the steady-state target bias of shield machine according to the proportionality coefficient；And the relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information.The present invention provides accurate parameter and model for the steady-state target value that shield is rectified a deviation, and works as front ring transient state target for judgement and provides reasonable quantitative basis, is one of the technical foundation for realizing the correction of artificial intelligence shield.
Description
Technical field
The present invention relates to Tunnel Engineering technical fields, refer in particular to a kind of steady-state target bias system of shield tunnel construction correction
And method.
Background technique
Phenomena such as in order to alleviate urban population growth bring traffic congestion, the high speed development of China's City Underground Transportation,
Shield method is widely used in urban subway tunnel, vcehicular tunnel construction.Especially at present in urban core region,
Road tunnel is built, in order to avoid the existing buildings such as pile foundation, underground utilities, shield-tunneling construction needs while realizing small radius of curvature
Horizontal curve and vertical curve driving.Small curvature circular curve or easement curve increase the difficulty of correction control decision, and correction control is determined
The correctness of plan directly affects the quality in molding tunnel.How to guarantee constructing tunnel axis on Tunnel Design axis (DTA), is
The problem of shield correction is also that one of must solve the problems, such as.
Shield correction has the characteristics that super slow process, the control of ultra-long period, and shield correction, which generally requires ring of numbers, can be only achieved
Ideal expectation value.So-called shield correction steady-state target is to judge that shield rectifies a deviation transient state target (rectify a deviation when front ring and predict target)
The reference information of final dreamboat position to be achieved is provided.
The shield attitude information that the correction of prior art shield is mainly obtained using self-operated measuring unit, then by manual operation
Realize shield correction control.Manual operation is usually to fall in shield axis on DTA as far as possible using DTA as target.But due to
Shield is cylindrical body, can not be overlapped with DTA axis in curved section shield axis.Manually by rule of thumb can qualitative combination DTA line style,
The principle of " a small amount of frequently to entangle " is taken, and takes into account notch deviation and shield tail deviation in specific operation process.But manual operation hand
The excessive experience for relying on engineer of section is right due to shield driver each one experience level, operation style, the difference of conscientious degree
The judgement difference of the ideal position of curved section shield directly affects the correction strategy when front ring.Up to the present lack a kind of side
Method determines shield correction steady-state target rationally quantitative under the conditions of circular curve, easement curve.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of steady-state target of shield tunnel construction correction is provided
Bias system and method, solve existing manual deviation rectification and excessively rely on the experience of engineer to make rectifying effect unstable and can not
The problem of obtaining rationally quantitative correction steady-state target.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides a kind of steady-state target biasing means of shield tunnel construction correction, include the following steps:
Obtain the design axis of constructing tunnel；
During constructing tunnel, the real-time offsets information of shield machine is obtained；
According to the current stroke of shield machine, if the open center of shield machine and shield tail center are respectively positioned on the design axis
When, the position of segment assembly axis centre calculates the reference position point away from described as axial reference position point of rectifying a deviation
Design the action of axis；；
Corresponding proportionality coefficient is set according to the size of shield machine, the action is converted into shield according to the proportionality coefficient
The steady-state target bias of structure machine；And
The relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information.
Steady-state target biasing means of the invention are fallen on the design axis of constructing tunnel with segment assembly axis centre
Shield attitude quantitative values are dreamboat, by shield notch and shield tail respectively when on DTA the pipe sheet assembling position of shield to DTA
Distance definition be shield machine steady-state target bias, and using shield machine steady-state target bias and shield machine it is real-time
Deviation information synthesis obtains relative deviation information, rectifies a deviation, can guarantee to shield machine by obtained relative deviation information
Shield machine is at the design axis of curve, and incision is located on the inside of the circular arc of curve (i.e. close to center of circle side), and shield tail is located at curve
Circular arc on the outside of (i.e. far from center of circle side), avoid section of jurisdiction and shield tail downthrust, established tunnel duct piece axis and fall in tunnel and set
Technical foundation on meter shaft line improves constructing tunnel quality.The present invention provides accurately for the steady-state target value that shield is rectified a deviation
Parameter and model work as front ring transient state target for judgement and provide reasonable quantitative basis, are the technologies for realizing the correction of artificial intelligence shield
One of basis.
The steady-state target biasing means of shield tunnel construction of the present invention correction further improvement lies in that, calculate the ginseng
The step of examining action of the location point away from the design axis, comprising:
In the design coordinate value for the open center and shield tail center for finding out corresponding shield machine on the design axis, and
The corresponding coordinate value for calculating the reference position point；
In the plane that X-axis and Y-axis in the earth coordinates of constructing tunnel define, the reference position point is calculated
Action of the subpoint away from the design axis, as plane action；
In the plane that X-axis and Z axis in the earth coordinates of constructing tunnel define, the reference position point is calculated
Action of the subpoint in the Z-axis direction away from the design axis, as elevation action,.
The steady-state target biasing means of shield tunnel construction of the present invention correction further improvement lies in that, according to the ratio
The action is converted to the step of steady-state target bias of shield machine by coefficient, comprising:
The plane bias value and elevation bias of shield machine notch, the formula group one are calculated according to formula group one are as follows:
Dpcut=k*ph formula group one
Decut=k*eh
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is that the elevation of shield machine notch biases
Value, k are proportionality coefficient, and ph is plane action, and eh is elevation action；
The plane bias value and elevation bias of shield machine shield tail, the formula group two are calculated according to formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is that the elevation of shield machine shield tail is inclined
Value is set, k is proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For in segment assembly axis
Distance of the heart away from shield tail center.
The steady-state target biasing means of shield tunnel construction of the present invention correction further improvement lies in that, the real-time offsets
Information include the plane real-time offsets value of shield machine notch, the elevation real-time offsets value of shield machine notch, shield machine shield tail it is flat
The elevation real-time offsets value of face real-time offsets value and shield machine shield tail；
The relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information
The step of, comprising:
The plane real-time offsets value of the shield machine notch and the plane bias value of the shield machine notch are summed, as
The plane relative standard deviation values of shield machine notch；
The elevation bias of the elevation real-time offsets value of the shield machine notch and the shield machine notch is summed, as
The elevation relative standard deviation values of shield machine notch；
The plane bias value of the plane real-time offsets value of the shield machine shield tail and the shield machine shield tail is summed, as
The plane relative standard deviation values of shield machine shield tail；
The elevation bias of the elevation real-time offsets value of the shield machine shield tail and the shield machine shield tail is summed, as
The elevation relative standard deviation values of shield machine shield tail.
The steady-state target biasing means of shield tunnel construction of the present invention correction further improvement lies in that, according to shield machine
Size sets the step of corresponding proportionality coefficient, comprising:
When the diameter of shield machine, which is more than or equal to 12m, is less than 16m, setting ratio coefficient is more than or equal to 0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
The present invention also provides a kind of steady-state target bias systems of shield tunnel construction correction, comprising:
Parameter input unit, shield machine for inputting the design axis of constructing tunnel, during constructing tunnel it is real-time
The current stroke of deviation information and shield machine；
The action computing unit being connect with the parameter input unit, for the current stroke according to shield machine, if shield
When the open center of machine and shield tail center are respectively positioned on the design axis, the position of segment assembly axis centre is as correction axis
To reference position point, and calculate action of the reference position point away from the design axis；
The processing unit being connect with the action computing unit and the parameter input unit, for the ruler according to shield machine
It is very little to set corresponding proportionality coefficient, the action is converted to the steady-state target bias of shield machine according to the proportionality coefficient,
The relative deviation information of shield machine is calculated further according to the steady-state target bias and the real-time offsets information.
The steady-state target bias system of shield tunnel construction of the present invention correction further improvement lies in that, the action calculates
Unit includes searching module, plane action computing module and elevation action computing module；
The searching module is connect with the parameter input unit, for the current stroke according to shield machine in the design
The open center of corresponding shield machine and the design coordinate value at shield tail center are found out on axis, and correspondence calculates the reference
The coordinate value of location point；
The plane action computing module is connect with the searching module, for the coordinate according to the reference position point
Value, the open center of the shield machine and shield center design coordinate value, X-axis in the earth coordinates of constructing tunnel and
In the plane that Y-axis defines, the subpoint of the reference position point is calculated away from the action of the design axis, as plane string
It is high；
The elevation action computing module is connect with the searching module, for the coordinate according to the reference position point
Value, the open center of the shield machine and shield center design coordinate value, X-axis in the earth coordinates of constructing tunnel and
In the plane that Z axis defines, action of the subpoint of the reference position point in the Z-axis direction away from the design axis is calculated,
As elevation action.
The steady-state target bias system of shield tunnel construction of the present invention correction further improvement lies in that, the processing unit
Conversion module is biased including steady-state target, steady-state target biasing conversion module and the plane action computing module and described
The connection of elevation action computing module；
Formula group one and formula group two, the formula group one are stored in the steady-state target biasing conversion module are as follows:
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is that the elevation of shield machine notch biases
Value, k are proportionality coefficient, and ph is plane action, and eh is elevation action；
The formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is that the elevation of shield machine shield tail is inclined
Difference, k are proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For in segment assembly axis
Distance of the heart away from shield tail center；
The steady-state target biases conversion module for proportionality coefficient, plane action, elevation action and shield machine size generation
Enter the formula group one and the formula group two, the plane bias value and elevation bias and shield of shield machine notch is calculated
The plane bias value and elevation bias of machine shield tail.
The steady-state target bias system of shield tunnel construction of the present invention correction further improvement lies in that, the processing unit
It further include the relative deviation information computational module being connect with steady-state target biasing conversion module；
The relative deviation information computational module is also connect with the parameter input unit, for obtaining the parameter input
The real-time offsets information of the shield machine of unit input, the real-time offsets information includes the plane real-time offsets of shield machine notch
The elevation of value, the elevation real-time offsets value of shield machine notch, the plane real-time offsets value of shield machine shield tail and shield machine shield tail is real
When deviation；
The relative deviation information computational module be also used to by the plane real-time offsets value of the shield machine notch with it is described
The plane bias value of shield machine notch is summed, the plane relative standard deviation values as shield machine notch；
The relative deviation information computational module be also used to by the elevation real-time offsets value of the shield machine notch with it is described
The elevation bias of shield machine notch is summed, the elevation relative standard deviation values as shield machine notch；
The relative deviation information computational module be also used to by the plane real-time offsets value of the shield machine shield tail with it is described
The plane bias value of shield machine shield tail is summed, the plane relative standard deviation values as shield machine shield tail；
The relative deviation information computational module be also used to by the elevation real-time offsets value of the shield machine shield tail with it is described
The elevation bias of shield machine shield tail is summed, the elevation relative standard deviation values as shield machine shield tail.
The steady-state target bias system of shield tunnel construction of the present invention correction further improvement lies in that, the processing unit
Setting corresponding proportionality coefficient according to the size of shield machine includes:
When the diameter of shield machine, which is more than or equal to 12m, is less than 16m, setting ratio coefficient is more than or equal to 0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
Detailed description of the invention
Fig. 1 be shield tunnel construction of the present invention correction steady-state target bias system and method in calculate rectify a deviation apart from when
The structural schematic diagram of YOX coordinate system.
Fig. 2 be shield tunnel construction of the present invention correction steady-state target bias system and method in calculate rectify a deviation apart from when
The structural schematic diagram of XOZ coordinate system.
Fig. 3 is bias of rectifying a deviation obtained in the steady-state target bias system that shield tunnel construction of the present invention is rectified a deviation and method
The schematic diagram of shield attitude in corresponding shield attitude and traditional method for correcting error.
Fig. 4 is the flow chart of the steady-state target biasing means of shield tunnel construction of the present invention correction.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refering to Fig. 4, the present invention provides the steady-state target bias systems and method of a kind of correction of shield tunnel construction, are used for
It solves existing manual deviation rectification and relies on engineer experience, and mass effect of rectifying a deviation is different.Steady-state target bias system of the invention is suitable
It answers all kinds of linear steady-state target quantitative approach to take into account constructing tunnel technique for the purpose of improving constructing tunnel axial mass, fits
With the shield correction steady-state target under the conditions of straight line, circular curve and easement curve.To realize artificial intelligence shield correction stable state
Target control link, which provides, has scientific, versatility quantitative model.With reference to the accompanying drawing to shield tunnel construction of the present invention
The steady-state target bias system and method for correction are illustrated.
The steady-state target bias system of shield tunnel construction correction of the invention includes parameter input unit, action calculating list
Member and processing unit, wherein parameter input unit is all connected with action computing unit and processing unit, and action computing unit is also
It is connect with processing unit；
Wherein, parameter input unit is used to input the shield machine during the design axis of constructing tunnel, constructing tunnel
The current stroke of real-time offsets information and shield machine；
Action computing unit is used for the current stroke according to shield machine, if the equal position of the open center of shield machine and shield tail center
When on the design axis, the position of segment assembly axis centre calculates described as axial reference position point of rectifying a deviation
Action of the reference position point away from the design axis；
Processing unit is used to set corresponding proportionality coefficient according to the size of shield machine, converts action according to proportionality coefficient
For the steady-state target bias of shield machine, the phase of shield machine is calculated with real-time offsets information further according to steady-state target bias
To deviation information.
Action computing unit of the invention falls in the shield on the design axis of constructing tunnel with segment assembly axis centre
Posture quantitative values are dreamboat, compared to existing traditional design axis for making shield axis fall in constructing tunnel as far as possible of rectifying a deviation
Line can be improved correction mass effect, it is ensured that segment assembly axis centre is located on the design axis of constructing tunnel, to improve
Constructing tunnel quality.Shield machine is calculated according to steady-state target bias and real-time offsets information in processing unit of the invention
Relative deviation information, wherein real-time offsets information is that the design of constructing tunnel is fallen in using shield real-time attitude and shield axis
Offset distance on axis combines segment assembly axis centre to fall in the design of constructing tunnel on the real-time offsets Information base
On axis, correction target can be realized, additionally provide accurate parameterized model, for judgement when front ring transient state target provides rationally
Quantitative basis is one of the technical foundation for realizing the correction of artificial intelligence shield.
As a better embodiment of the invention, action computing unit includes searching module, plane action computing module
And elevation action computing module；
Searching module therein is connect with parameter input unit, for the current stroke according to shield machine in design axis
Find out the open center of corresponding shield machine and the design coordinate value at shield tail center；In Fig. 1, it is shown that in earth coordinates
The coordinate diagram in plane that middle X-axis and Y-axis define, curve DTA are the design axis of constructing tunnel, and point C is cutting for shield machine
Mouth center, point T are the shield tail center of shield machine, and point C and point T are respectively positioned on curve DTA, and the line of point C and point T are shield axis
Line also illustrates that shield attitude, and the current stroke of shield machine is obtained according to parameter input unit, thus know current section of jurisdiction ring number,
The notch mileage and shield tail mileage of shield machine, then find out open center and when shield tail center is all fallen on design axis is corresponding
Coordinate value is designed, the coordinate (x of point C is obtainedc,yc,zc) and point T coordinate (xt,yt,zt).Searching module is also used to corresponding calculating
Coordinate value (the x of reference position point M out1,y1,z1), reference position point M is the axis of corresponding segment assembly on shield axis
Center.
Plane action computing module is connect with searching module, for being cut according to the coordinate value of reference position point, shield machine
The design coordinate value at mouthful center and shield center, in the plane that X-axis and Y-axis in the earth coordinates of constructing tunnel define,
The action of the subpoint of reference position point away from design axis is calculated as plane action；Plane action is the midpoint Fig. 1 M away from point
The distance of P, the straight line that midpoint P is passing point M and the straight line that is linked to be with point C and point T is perpendicular and the intersection point for designing axis, this
Point P indicates that segment assembly axis centre is fallen on design axis, and specifically, calculation formula is as follows:
Ph=(y1-yt)cosα-(x1-xt)sinα
In above formula, ph is plane correction distance, and α is the angle of point C and point the T straight line being linked to be and X-axis.Coordinate value in formula
It is known that so plane action ph can be calculated in plane action computing module.
Elevation action computing module is connect with searching module, for being cut according to the coordinate value of reference position point, shield machine
The design coordinate value at mouthful center and shield center, in the plane that X-axis and Z axis in the earth coordinates of constructing tunnel define,
Action of the subpoint of reference position point in the Z-axis direction away from design axis is calculated as elevation action.As shown in connection with fig. 2,
Elevation action is the distance that point M arrives point P in vertical direction namely Z-direction, and specifically, calculation formula is as follows:
In above formula, eh is elevation action.Coordinate value in formula is it is known that so height can be calculated in elevation action computing module
Journey action eh.
The calculated action of action computing module of the invention includes elevation action and plane action, and elevation action indicates
The deviation of shield machine short transverse (namely Z-direction) in practice of construction, plane action indicate that shield machine exists in practice of construction
The deviation in (namely X-axis and Y-axis line direction) in plane.
Still further, processing unit include steady-state target biasing conversion module, the steady-state target bias conversion module with
Plane action computing module is connected with elevation action computing module；It gets plane action computing module and elevation action calculates mould
The plane action and elevation action that block is calculated；
Formula group one and formula group two, formula group one are stored in steady-state target biasing conversion module are as follows:
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is that the elevation of shield machine notch biases
Value, k are proportionality coefficient, and ph is plane action, and eh is elevation action；
Formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is that the elevation of shield machine shield tail is inclined
Value is set, k is proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For in segment assembly axis
Distance of the heart away from shield tail center；
Steady-state target biases conversion module and proportionality coefficient, plane action, elevation action and shield machine size is substituted into public affairs
The plane bias value of shield machine notch and the plane of elevation bias and shield machine shield tail is calculated in formula group one and formula group two
Bias and elevation bias.
Wherein shield machine size includes the length of shield machine, distance of the segment assembly axis centre away from shield tail center, the shield
Structure machine dimension information is inputted by parameter input unit, and it is single that the steady-state target biasing conversion module of processing unit reads parameter input
The shield machine size of member input, and it is updated to the plane bias value and elevation bias that shield tail is calculated in formula group two.
Further, processing unit further includes that the relative deviation information connecting with steady-state target biasing conversion module calculates
Module；
Relative deviation information computational module is also connect with parameter input unit, the shield for the input unit input that gets parms
The real-time offsets information of structure machine, real-time offsets information include the height of the plane real-time offsets value of shield machine notch, shield machine notch
The elevation real-time offsets value of journey real-time offsets value, the plane real-time offsets value of shield machine shield tail and shield machine shield tail；
Relative deviation information computational module is also used to the plane real-time offsets value of shield machine notch and shield machine notch
The summation of plane bias value, the plane relative standard deviation values as shield machine notch；
Relative deviation information computational module is also used to the elevation real-time offsets value of shield machine notch and shield machine notch
The summation of elevation bias, the elevation relative standard deviation values as shield machine notch；
Relative deviation information computational module is also used to the plane real-time offsets value of shield machine shield tail and shield machine shield tail
The summation of plane bias value, the plane relative standard deviation values as shield machine shield tail；
Relative deviation information computational module is also used to the elevation real-time offsets value of shield machine shield tail and shield machine shield tail
The summation of elevation bias, the elevation relative standard deviation values as shield machine shield tail.
Steady-state target biasing module of the invention sums the steady-state target bias of shield machine and real-time offsets information, knot
It closing shown in Fig. 3, point C ' is located at the inside of curve DTA, the i.e. side close to the center of circle after correction, and point T ' is located at the outside of curve DAT,
I.e. far from the side in the center of circle, C ' therein is the position according to the open center of shield machine after the correction of relative deviation information, and T ' is
According to the position at the shield tail center of shield machine after the correction of relative deviation information, the posture of the shield machine after correction is that notch is located at song
The inside of line circular arc, shield tail is located at the outside of curve circular arc, and segment assembly axis centre is located on curve circular arc.
Processing unit sets corresponding proportionality coefficient according to the size of shield machine, comprising: when the diameter of shield machine is greater than etc.
When 12m is less than 16m, setting ratio coefficient is more than or equal to 0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
Parameter input unit of the invention can provide the function being manually entered, i.e. manually all information of typing, packet
Include the current stroke and shield machine dimension information for designing axis, the real-time offsets information of shield machine, shield machine of constructing tunnel.Also
Introducting interface can be provided, by constructing tunnel design axis, the real-time offsets information of shield machine, shield machine it is current formed and
Shield machine dimension information directly passes through introducting interface and imported into system.Design axis, the shield machine of constructing tunnel of the invention
Real-time offsets information, shield machine the PLC of current stroke and shield machine dimension information from shield machine, the wherein reality of shield machine
When deviation information be it is traditional shield axis is fallen in into resulting deviation on DAT, real-time attitude that can be current according to shield machine
The distance of corresponding points on DAT is fallen in away from shield axis to be calculated.
The steady-state target biasing means of shield tunnel construction correction of the invention are illustrated below.
A kind of steady-state target biasing means of shield tunnel construction correction provided by the invention, include the following steps:
As shown in figure 4, executing step S11, the design axis of constructing tunnel is obtained；Then step S12 is executed；
Step S12 is executed, the real-time offsets information of shield machine is obtained；During constructing tunnel, shield machine is obtained
Real-time offsets information；Then step S13 is executed；
Step S13 is executed, according to the current stroke of shield machine, if the open center of shield machine and shield tail center are respectively positioned on institute
When stating on design axis, the position of segment assembly axis centre calculates the reference as axial reference position point of rectifying a deviation
Action of the location point away from the design axis；；Then step S14 is executed；
Step S14 is executed, corresponding proportionality coefficient is set according to the size of shield machine, converts action according to proportionality coefficient
For the steady-state target bias of shield machine；Then step S15 is executed；
Step S15 is executed, the relative deviation of shield machine is calculated according to steady-state target bias and real-time offsets information
Information.
Steady-state target biasing means of the invention are fallen on the design axis of constructing tunnel with segment assembly axis centre
Shield attitude quantitative values are dreamboat, and the steady-state target for the shield machine that the correction distance of the dreamboat is converted to shield is inclined
Value is set, and obtains relative deviation information using the steady-state target bias of shield machine and the real-time offsets informix of shield machine,
Rectify a deviation by obtained relative deviation information to shield machine, can guarantee shield machine at the design axis of curve, notch
Place is located on the inside of the circular arc of curve (i.e. close to center of circle side), and shield tail is located on the outside of the circular arc of curve (i.e. far from center of circle side), avoids
Section of jurisdiction and shield tail downthrust have established the technical foundation that tunnel duct piece axis is fallen on Tunnel Design axis, improve tunnel and apply
Working medium amount.The present invention provides accurate parameter and model for the steady-state target value that shield is rectified a deviation, and works as front ring transient state mesh for judgement
Mark provides reasonable quantitative basis, is one of the technical foundation for realizing the correction of artificial intelligence shield.
As a better embodiment of the invention, the step of reference position point is away from the action for designing axis, packet are calculated
It includes:
Referring to figs. 1 and 2, in the open center and shield tail center for finding out corresponding shield machine on design axis
Design coordinate value；Design axis is curve DTA, and point C is the open center of shield machine, and point T is the shield tail center of shield machine, point C
It is respectively positioned on curve DTA with point T, the line of point C and point T are shield axis, also illustrate that shield attitude, the current line of shield machine
Journey it is known that current section of jurisdiction ring number it is known that shield machine notch mileage and shield tail mileage it is also known that, then find out open center and shield
Tail center corresponding design coordinate value when all falling on design axis, obtains the coordinate (x of point Cc,yc,zc) and point T coordinate
(xt,yt,zt).The corresponding coordinate value for calculating reference position point M, (x1,y1,z1), reference position point M is right on shield axis
The axis centre for the segment assembly answered.
In the plane that X-axis and Y-axis in the earth coordinates of constructing tunnel define, the projection of reference position point is calculated
The action of point design axis, as plane action；Specifically, it is calculated by following formula:
Ph=(y1-yt)cosα-(x1-xt)sinα
In above formula, ph is plane action, and α is the angle of point C and point the T straight line being linked to be and X-axis.Coordinate value in formula is
Know, so plane action ph can be calculated.Plane action is distance of the midpoint Fig. 1 M away from point P, and midpoint P is passing point M
And with straight line that point C and point T are linked to be perpendicular straight line and design axis intersection point, which indicates segment assembly axis centre
It falls on design axis,
In the plane that X-axis and Z axis in the earth coordinates of constructing tunnel define, the projection of reference position point is calculated
Action of the point in the Z-axis direction away from design axis.As shown in connection with fig. 2, elevation action is distance of the point M away from point P, specifically,
Calculation formula is as follows:
In above formula, eh is elevation action.Coordinate value in formula is it is known that so height can be calculated in elevation distance calculation module
Journey action eh.
Further, the step of action being converted to the steady-state target bias of shield machine according to proportionality coefficient, comprising:
The plane bias value and elevation bias of shield machine notch, formula group one are calculated according to formula group one are as follows:
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is that the elevation of shield machine notch biases
Value, k are proportionality coefficient, and ph is plane action, and eh is elevation action；
The plane bias value and elevation bias of shield machine shield tail, formula group two are calculated according to formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is that the elevation of shield machine shield tail is inclined
Value is set, k is proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For in segment assembly axis
Distance of the heart away from shield tail center.Wherein distance of the segment assembly axis centre away from shield tail center in the length of shield machine and shield machine
It can get, so corresponding steady-state target bias can be calculated in formula group one and formula group two.
Still further, real-time offsets information includes the height of the plane real-time offsets value of shield machine notch, shield machine notch
The elevation real-time offsets value of journey real-time offsets value, the plane real-time offsets value of shield machine shield tail and shield machine shield tail；
The step of relative deviation information of shield machine is calculated according to steady-state target bias and real-time offsets information, packet
It includes:
The plane real-time offsets value of shield machine notch and the plane bias value of shield machine notch are summed, as shield machine-cut
The plane relative standard deviation values of mouth；
The elevation bias of the elevation real-time offsets value of shield machine notch and shield machine notch is summed, as shield machine-cut
The elevation relative standard deviation values of mouth；
The plane bias value of the plane real-time offsets value of shield machine shield tail and shield machine shield tail is summed, as shield machine shield
The plane relative standard deviation values of tail；
The elevation bias of the elevation real-time offsets value of shield machine shield tail and shield machine shield tail is summed, as shield machine shield
The elevation relative standard deviation values of tail.
The present invention sums the steady-state target bias of shield machine and real-time offsets information, as shown in connection with fig. 3, point after correction
C ' is located at the inside of curve DTA, the i.e. side close to the center of circle, and point T ' is located at the outside of curve DAT, i.e., far from the side in the center of circle,
C ' therein is the position according to the open center of shield machine after the correction of relative deviation information, and T ' is to entangle according to relative deviation information
The position at the shield tail center of shield machine to the rear, the posture of the shield machine after correction are the inside that notch is located at curve circular arc, shield tail
Positioned at the outside of curve circular arc, and segment assembly axis centre is located on curve circular arc.If the target bias value after summation is greater than
When zero, then it should adjust to the left or downwards；It is on the contrary then to the right or adjust upward, wherein left and right is up and down that shield machine is located in the soil body
It stands above and below the left and right that shield tail faces when notch is stood.
System and method of the invention is suitable for all kinds of DTA and designs axis, if proportionality coefficient is set as 0, the application's is
System and method are suitable for the design axis of straight line line style, if proportionality coefficient is greater than 0 or less than 0, are suitable for left bent or right bent
The design axis of easement curve line style has stronger versatility.When being suitable for Curve, the size setting pair of shield machine
The step of answering proportionality coefficient includes: when the diameter of shield machine is more than or equal to 12m and is less than 16m, and setting ratio coefficient is more than or equal to
0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
System and method of the invention falls in the shield attitude quantitative values on DTA with segment assembly axis centre as ideal
Target, when arrival curve section, section of jurisdiction wedge shape amount shifts to an earlier date, and to close to center of circle lateral deviation, shield tail ensure that notch to far from center of circle lateral deviation
Shield reaches the technique requirement that notch is rectified a deviation in advance in circle when curved section is rectified a deviation, and avoids section of jurisdiction and shield tail downthrust；
It has established technical foundation that tunnel final products section of jurisdiction axis falls on Tunnel Design axis, constructing tunnel quality can be improved.
System and method of the invention provides accurate parameterized model, for judgement when front ring transient state target provides conjunction
Quantitative basis is managed, is one of the technical foundation for realizing the correction of artificial intelligence shield.
System and method of the invention takes into account constructing tunnel technique for the purpose of improving constructing tunnel axial mass, is applicable in
Shield correction steady-state target under the conditions of straight line, circular curve and easement curve, to realize artificial intelligence shield correction stable state mesh
Marking controlling unit and providing has scientific, versatility quantitative model.Manual deviation rectification experience is solved by experience level, operation
Style, conscientious degree etc. and existing rectifying effect is unstable and the problem of can not quantify.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (10)
1. a kind of steady-state target biasing means of shield tunnel construction correction, which comprises the steps of:
Obtain the design axis of constructing tunnel；
During constructing tunnel, the real-time offsets information of shield machine is obtained；
According to the current stroke of shield machine, if the open center of shield machine and shield tail center are respectively positioned on the design axis,
The position of segment assembly axis centre calculates the reference position point away from the design as axial reference position point of rectifying a deviation
The action of axis；
Corresponding proportionality coefficient is set according to the size of shield machine, the action is converted into shield machine according to the proportionality coefficient
Steady-state target bias；And
The relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information.
2. the steady-state target biasing means of shield tunnel construction correction as described in claim 1, which is characterized in that calculate institute
The step of stating action of the reference position point away from the design axis, comprising:
In the design coordinate value for the open center and shield tail center for finding out corresponding shield machine on the design axis, and correspond to
Calculate the coordinate value of the reference position point；
In the plane that X-axis and Y-axis in the earth coordinates of constructing tunnel define, the reference position point is calculated
Action of the subpoint away from the design axis, as plane action；
In the plane that X-axis and Z axis in the earth coordinates of constructing tunnel define, the projection of the reference position point is calculated
Action of the point in the Z-axis direction away from the design axis, as elevation action.
3. the steady-state target biasing means of shield tunnel construction correction as claimed in claim 2, which is characterized in that according to described in
The action is converted to the step of steady-state target bias of shield machine by proportionality coefficient, comprising:
The plane bias value and elevation bias of shield machine notch, the formula group one are calculated according to formula group one are as follows:
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is the elevation bias of shield machine notch, k
For proportionality coefficient, ph is plane action, and eh is elevation action；
The plane bias value and elevation bias of shield machine shield tail, the formula group two are calculated according to formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is the elevation bias of shield machine shield tail,
K is proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For segment assembly axis centre away from
The distance at shield tail center.
4. the steady-state target biasing means of shield tunnel construction correction as claimed in claim 3, which is characterized in that described real-time
Deviation information includes the plane real-time offsets value of shield machine notch, elevation real-time offsets value, the shield machine shield tail of shield machine notch
Plane real-time offsets value and shield machine shield tail elevation real-time offsets value；
The step of the relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information
Suddenly, comprising:
The plane real-time offsets value of the shield machine notch and the plane bias value of the shield machine notch are summed, as shield
The plane relative standard deviation values of machine-cut mouth；
The elevation bias of the elevation real-time offsets value of the shield machine notch and the shield machine notch is summed, as shield
The elevation relative standard deviation values of machine-cut mouth；
The plane bias value of the plane real-time offsets value of the shield machine shield tail and the shield machine shield tail is summed, as shield
The plane relative standard deviation values of machine shield tail；
The elevation bias of the elevation real-time offsets value of the shield machine shield tail and the shield machine shield tail is summed, as shield
The elevation relative standard deviation values of machine shield tail.
5. the steady-state target biasing means of shield tunnel construction correction as described in claim 1, which is characterized in that according to shield
The size of machine sets the step of corresponding proportionality coefficient, comprising:
When the diameter of shield machine, which is more than or equal to 12m, is less than 16m, setting ratio coefficient is more than or equal to 0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
6. a kind of steady-state target bias system of shield tunnel construction correction characterized by comprising
Parameter input unit, the real-time offsets of the shield machine for inputting the design axis of constructing tunnel, during constructing tunnel
The current stroke of information and shield machine；
The action computing unit being connect with the parameter input unit, for the current stroke according to shield machine, if shield machine
When open center and shield tail center are respectively positioned on the design axis, the position of segment assembly axis centre is as the axial ginseng of correction
Location point is examined, and calculates action of the reference position point away from the design axis；
The processing unit being connect with the action computing unit and the parameter input unit, for being set according to the size of shield machine
The action, the steady-state target bias of shield machine, then root are converted to according to the proportionality coefficient by fixed corresponding proportionality coefficient
The relative deviation information of shield machine is calculated according to the steady-state target bias and the real-time offsets information.
7. the steady-state target bias system of shield tunnel construction correction as claimed in claim 6, which is characterized in that the action
Computing unit includes searching module, plane action computing module and elevation action computing module；
The searching module is connect with the parameter input unit, for the current stroke according to shield machine in the design axis
On find out the open center of corresponding shield machine and the design coordinate value at shield tail center, and correspondence calculates the reference position
The coordinate value of point；
The plane action computing module is connect with the searching module, for the coordinate value according to the reference position point, institute
State the open center of shield machine and the design coordinate value at shield center, X-axis and Y-axis circle in the earth coordinates of constructing tunnel
In fixed plane, the subpoint of the reference position point is calculated away from the action of the design axis, as plane action；
The elevation action computing module is connect with the searching module, for the coordinate value according to the reference position point, institute
State the open center of shield machine and the design coordinate value at shield center, X-axis and Z axis circle in the earth coordinates of constructing tunnel
In fixed plane, action of the subpoint of the reference position point in the Z-axis direction away from the design axis is calculated, as height
Journey action.
8. the steady-state target bias system of shield tunnel construction correction as claimed in claim 7, which is characterized in that the processing
Unit include steady-state target biasing conversion module, steady-state target biasing conversion module and the plane action computing module and
The elevation action computing module connection；
Formula group one and formula group two, the formula group one are stored in the steady-state target biasing conversion module are as follows:
In formula group one, dpcut is the plane bias value of shield machine notch, and decut is the elevation bias of shield machine notch, k
For proportionality coefficient, ph is plane action, and eh is elevation action；
The formula group two are as follows:
In formula group two, dptail is the plane bias value of shield machine shield tail, and detail is the elevation bias of shield machine shield tail,
K is proportionality coefficient, and ph is plane action, and eh is elevation action, and L is the length of shield machine, l0For segment assembly axis centre away from
The distance at shield tail center；
Proportionality coefficient, plane action, elevation action and shield machine size are substituted into institute by the steady-state target biasing conversion module
Formula group one and the formula group two are stated, the plane bias value and elevation bias and shield machine shield of shield machine notch is calculated
The plane bias value and elevation bias of tail.
9. the steady-state target bias system of shield tunnel construction correction as claimed in claim 8, which is characterized in that the processing
Unit further includes the relative deviation information computational module connecting with steady-state target biasing conversion module；
The relative deviation information computational module is also connect with the parameter input unit, for obtaining the parameter input unit
The real-time offsets information of the shield machine of input, the real-time offsets information include the plane real-time offsets value of shield machine notch, shield
The elevation real-time offsets of the elevation real-time offsets value of structure machine-cut mouth, the plane real-time offsets value of shield machine shield tail and shield machine shield tail
Value；
The relative deviation information computational module is also used to the plane real-time offsets value of the shield machine notch and the shield
The plane bias value of machine-cut mouth is summed, the plane relative standard deviation values as shield machine notch；
The relative deviation information computational module is also used to the elevation real-time offsets value of the shield machine notch and the shield
The elevation bias of machine-cut mouth is summed, the elevation relative standard deviation values as shield machine notch；
The relative deviation information computational module is also used to the plane real-time offsets value of the shield machine shield tail and the shield
The plane bias value of machine shield tail is summed, the plane relative standard deviation values as shield machine shield tail；
The relative deviation information computational module is also used to the elevation real-time offsets value of the shield machine shield tail and the shield
The elevation bias of machine shield tail is summed, the elevation relative standard deviation values as shield machine shield tail.
10. the steady-state target bias system of shield tunnel construction correction as claimed in claim 6, which is characterized in that the place
Reason unit sets corresponding proportionality coefficient according to the size of shield machine
When the diameter of shield machine, which is more than or equal to 12m, is less than 16m, setting ratio coefficient is more than or equal to 0.16 less than 0.5；
When the diameter of shield machine, which is more than or equal to 9m, is less than 12m, setting ratio coefficient is more than or equal to 0.12 less than 0.16；
When the diameter of shield machine, which is more than or equal to 6m, is less than 9m, setting ratio coefficient is more than or equal to 0.09 less than 0.12.
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Cited By (1)
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| CN111578873A (en) * | 2020-04-22 | 2020-08-25 | 上海市基础工程集团有限公司 | Method for measuring initial positioning and rapid centering of shield machine |
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