CN115371791A - Underground pipeline vibration velocity measuring method and system - Google Patents
Underground pipeline vibration velocity measuring method and system Download PDFInfo
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Abstract
The invention provides a method and a system for measuring the vibration velocity of an underground pipeline, wherein the method comprises the following steps: acquiring a surrounding rock vibration velocity fitting curve in front of and behind a tunnel face during blasting in a tunnel; acquiring the ratio of the vibration speed of the pipeline above the tunnel to the vibration speed of the surrounding rock of the pipeline; sending a command that at least five first measuring points are arranged behind the tunnel face and the field blasting is carried out in the tunnel after the arrangement is finished; acquiring the peak vibration speed of each first measuring point behind the tunnel face during field blasting; calculating the peak value vibration velocity of each second measuring point, wherein the second measuring point is positioned in front of the tunnel face; and calculating the vibration speed of the pipeline. According to the invention, by establishing the relationship between the vibration of surrounding rocks around the pipeline and surrounding rocks inside the tunnel and the pipeline vibration, the pipeline blasting vibration can be more accurately and conveniently tested, and the safety condition of the pipeline can be evaluated.
Description
Technical Field
The invention relates to the technical field of tunnels, in particular to a method and a system for measuring the vibration velocity of an underground pipeline.
Background
At present, research on monitoring methods of pipelines under tunnel blasting vibration is still rare. The monitoring method can be divided into 2 types, one is a direct monitoring method, namely a vibration velocity sensor is directly arranged on a pipeline for testing. However, no matter the pipeline is buried in shallow or deep areas, the pipeline is easily damaged by directly digging to the pipeline and installing the sensor, and in addition, the pipeline is controlled by related departments, so that it is difficult to directly install the sensor on the pipeline for direct test. The other is an indirect monitoring method, namely, the vibration velocity at the pipeline is calculated according to the mutual relation of the vibration velocity test at the periphery of the pipeline. For a shallow pipeline, it is common to test the vibration velocity at the ground and then indirectly control the vibration velocity at the pipeline. For a deeply buried pipeline, sensors are arranged at different depths of the earth surface and the underground to obtain the propagation rule of the blasting seismic waves along the vertical direction, so that the actual vibration speed of the pipeline is indirectly calculated.
Disclosure of Invention
The invention aims to provide a vibration velocity measuring method and a vibration velocity measuring system for underground pipelines, so as to solve the problems.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
in one aspect, an embodiment of the present application provides a method for determining a vibration velocity of an underground pipeline, where the method includes:
acquiring a surrounding rock vibration velocity fitting curve in front of a tunnel face during blasting in a tunnel, and recording the curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel;
sending a command that at least five first measuring points are arranged behind the tunnel face and the on-site blasting is carried out in the tunnel after the arrangement is finished;
acquiring peak vibration speeds of the first measuring points behind the tunnel face during field blasting, and recording the peak vibration speeds as second data;
calculating the peak value vibration velocity of each second measuring point according to the second data, the first curve and the second curve, and marking as third data, wherein the second measuring points are positioned in front of the tunnel face;
and calculating the vibration speed of the pipeline according to the third data and the first data.
In a second aspect, an embodiment of the present application provides an underground pipeline vibration velocity measurement system, where the system includes a fitting curve obtaining module, a module for sending a blasting command, a first measurement point vibration velocity obtaining module, a peak vibration velocity calculating module, and a pipeline vibration velocity calculating module.
The fitting curve obtaining module is used for obtaining a fitting curve of the vibration speed of surrounding rocks in front of the tunnel face during blasting in the tunnel and recording the fitting curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel;
the blasting command sending module is used for sending a command that at least five first measuring points are arranged behind the tunnel face and field blasting is carried out in the tunnel after the arrangement is finished;
the first measuring point vibration velocity obtaining module is used for obtaining the peak value vibration velocity of each first measuring point behind the tunnel face during field blasting and recording the peak value vibration velocity as second data;
the peak vibration velocity calculating module is used for calculating the peak vibration velocity of each second measuring point according to the second data, the first curve and the second curve and marking as third data, and the second measuring points are positioned in front of the tunnel face;
and the pipeline vibration velocity calculating module is used for calculating the vibration velocity of the pipeline according to the third data and the first data.
In a third aspect, embodiments of the present application provide an underground pipeline vibration velocity determination apparatus, which includes a memory and a processor. The memory is used for storing a computer program; the processor is used for realizing the steps of the underground pipeline vibration velocity measuring method when executing the computer program.
In a fourth aspect, the present application provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the method for determining the vibration velocity of an underground pipeline.
The invention has the beneficial effects that:
1. at present, the problem of accurate monitoring of pipelines is difficult to solve only by ground indirect monitoring, and the method can more accurately and conveniently test the blasting vibration of the pipelines by establishing the relationship between the vibration of surrounding rocks around the pipelines and surrounding rocks inside tunnels and the vibration of the pipelines, and is favorable for evaluating the safety condition of the pipelines.
2. In the invention, the vibration velocity at the pipeline can be obtained through the measured vibration velocity of the surrounding rock behind the tunnel face, and compared with a monitoring method for predicting the vibration velocity of the pipeline through the ground surface vibration velocity, the indirect monitoring method is more accurate and efficient.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic flow chart of a method for determining the vibration velocity of an underground pipeline according to an embodiment of the present invention;
FIG. 2 is a curve fitted to the peak vibration velocity at the forward measurement point of the hard rock face in the embodiment of the present invention;
FIG. 3 is a fitting curve of peak vibration velocity at the rear measurement point of the hard rock face in the embodiment of the present invention;
FIG. 4 is a curve fitted to the peak vibration velocity at the forward measurement point of the tunnel face of the medium-hard rock in the embodiment of the present invention;
FIG. 5 is a curve fitted to the peak vibration velocity of the rear measurement point of the tunnel face of the medium-hard rock in the embodiment of the present invention;
FIG. 6 is a curve fitted to the peak vibration velocity of the forward measurement point of the soft rock tunnel face in the embodiment of the present invention;
FIG. 7 is a curve fitted to the peak vibration velocity at the rear measurement point of the soft rock tunnel face according to the embodiment of the present invention;
FIG. 8 is a curve fitted to the peak vibration velocity at the front and rear measurement points of the hard rock face in the embodiment of the present invention;
FIG. 9 is a curve fitted to the peak vibration velocity at the front and rear measurement points of the face of the hard rock in the embodiment of the present invention;
FIG. 10 is a curve fitted with the peak vibration velocity at the front and rear measuring points of the soft rock tunnel face in the embodiment of the present invention;
FIG. 11 is a schematic view showing the arrangement of the measuring points in step S15 in the embodiment of the present invention;
FIG. 12 is a schematic diagram of a real-time test in an embodiment of the present invention;
FIG. 13 is a schematic diagram of a system for determining the vibration velocity of an underground pipeline according to an embodiment of the present invention;
FIG. 14 is a schematic structural view of an apparatus for determining the vibration velocity of an underground pipeline according to an embodiment of the present invention;
the labels in the figure are: 701. a fitting curve obtaining module; 702. a module for sending blasting commands; 703. a first measuring point vibration velocity obtaining module; 704. a peak vibration velocity calculation module; 705. a pipeline vibration velocity calculation module; 7011. a three-dimensional model construction unit; 7012. a measuring point layout unit; 7013. a waveform diagram extraction unit; 7014. a fitting curve construction unit; 7015. sending a layout command unit; 7016. acquiring a message unit; 7017. a blasting command sending unit; 7018. a vibration speed acquisition unit; 7041. a first curve deforming unit; 7042. a second curve deformation unit; 7043. a third measuring point peak value vibration velocity calculating unit; 7044. carry-in data unit; 7051. a multiplication calculation unit; 7052. an average calculation unit; 7019. a tunnel three-dimensional model building unit; 70110. an analog operation unit; 70111. a fifth measuring point peak value vibration velocity calculating unit; 70112. a tunnel three-dimensional model building unit; 70113. a ratio calculation unit; 800. underground pipeline vibration velocity measuring equipment; 801. a processor; 802. a memory; 803. a multimedia component; 804. an I/O interface; 805. a communication component.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers or letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not construed as indicating or implying relative importance.
Example 1
As shown in fig. 1, the present embodiment provides a method for measuring the vibration velocity of an underground utility, which includes step S1, step S2, step S3, step S4 and step S5.
S1, obtaining a vibration velocity fitting curve of surrounding rock in front of a tunnel face during blasting in a tunnel, and recording the curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel; in this step, a preset distance is provided between the pipeline and the tunnel, the preset distance is less than or equal to 1-2 times of the span of the tunnel, and the pipeline and the tunnel are preferably in the same stratum except for a certain distance, because if the pipeline is far away from the tunnel, the accuracy of the finally obtained vibration velocity of the pipeline may be reduced, in this embodiment, the position relationship between the pipeline and the tunnel is limited, and the accuracy of the finally measured vibration velocity of the pipeline can be improved by this method.
In this step, the first curve and the second curve may be obtained by a numerical simulation method, and a specific implementation method may include step S11, step S12, step S13, and step S14.
S11, constructing a three-dimensional model of the tunnel;
in order to save the calculation cost, the embodiment establishes a 1/2 symmetric model by using the YOZ plane as a symmetric plane, the model size is 100m (length) × 10m (width) × 15m (height), and the cell size is controlled to be about 20 cm. And adding symmetry constraint on the symmetry plane of the model, and defining the rest planes as non-reflection boundaries. And (3) simulating detonation by adopting a single blast hole, wherein the single blasting explosive quantity is 8kg. In addition, the embodiment adopts an MAT _ PLASTIC _ KINEMATIC material model containing strain rate effect to simulate the surrounding rock, and different surrounding rock grade conditions are simulated by changing material model parameters.
Specific parameters are shown in table 1;
TABLE 1 surrounding rock Material parameters at various levels
In the construction process, according to the steps, a first curve and a second curve corresponding to the hard rock, the soft rock and the medium-hard rock can be constructed and obtained;
s12, laying third measuring points in the tunnel three-dimensional model, wherein a plurality of third measuring points are laid behind the tunnel face and on the surrounding rock in front of the tunnel face;
in the step, when third measuring points are arranged on the surrounding rock behind the tunnel face, one third measuring point is arranged at each interval of 1m within the range of 10m away from the back of the tunnel face, one third measuring point is arranged at each interval of 5m within the range of 10m-30m away from the back of the tunnel face, and one third measuring point is arranged at each interval of 10m within the range of 30m-50m away from the back of the tunnel face; according to the method for arranging the third measuring points on the surrounding rock behind the tunnel face, a plurality of third measuring points are also arranged on the surrounding rock in front of the tunnel face; meanwhile, when the third measuring points are arranged, all the measuring points are preferably arranged on the same straight line;
s13, performing tunnel blasting numerical simulation operation in the three-dimensional model, and extracting a particle vibration velocity oscillogram of each third measuring point to obtain a peak vibration velocity of each third measuring point;
after tunnel blasting numerical simulation is carried out, a particle vibration velocity oscillogram of each third measuring point can be extracted, the peak vibration velocity of each measuring point can be obtained according to the oscillogram, and the construction of the first curve and the second curve can be completed through the method of the step S14 after the peak vibration velocity is obtained;
s14, constructing a first curve and a second curve according to the peak vibration velocity of each third measuring point, wherein the first curve takes the distance between each third measuring point in front of the tunnel face and the center of explosion as an abscissa, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as an ordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
Through the method, a peak value vibration velocity fitting curve of the front measuring point of the hard rock tunnel face can be obtained; fitting a curve of peak vibration velocity of a measuring point behind the hard rock tunnel face; fitting a curve of peak vibration velocity of a front measuring point of the tunnel face of the medium-hard rock; fitting a curve of the peak vibration velocity of the measuring points behind the tunnel face of the medium-hard rock; fitting a curve of the peak vibration velocity of a front measuring point of the soft rock tunnel face; the curve fitted with the peak vibration velocity at the measuring point at the rear of the soft rock tunnel face, as shown in fig. 2-7, for example, can be as shown in table 2.
TABLE 2 fitting curve of front and back of each grade of surrounding rock face
Besides the obtained fitting curves, the vibration speeds of the front and rear surrounding rocks can be drawn in one graph for comparison, and the fitting curve of the peak vibration speed of the front and rear measuring points of the hard rock tunnel face, the fitting curve of the peak vibration speed of the front and rear measuring points of the middle hard rock tunnel face and the fitting curve of the peak vibration speed of the front and rear measuring points of the soft rock tunnel face are respectively shown in the graphs 8, 9 and 10;
in addition to the first curve and the second curve obtained by the methods in step S11, step S12, step S13 and step S14, the first curve and the second curve may also be obtained by performing a field test in a tunnel, and a specific implementation method may include step S15, step S16, step S17 and step S18;
s15, sending a command for arranging third measuring points in a first tunnel, wherein the first tunnel is provided with a first tunnel face, the first tunnel is a small-clear-distance tunnel, and when the third measuring points are arranged on the first tunnel, all the third measuring points arranged on the first tunnel are positioned behind the first tunnel face;
as shown in fig. 11, in this step, the first tunnel may be understood as a preceding tunnel, and the tunnel may be understood as a succeeding tunnel, where the distance between the preceding tunnel and the succeeding tunnel is less than or equal to the span of the succeeding tunnel, and the spans of the preceding tunnel and the succeeding tunnel are the same; when the vibration velocity of surrounding rock in front of and behind the tunnel face of the tunnel needs to be acquired, the third measuring points are arranged in the preceding tunnel instead of the following tunnel, and the method for arranging the third measuring points in front of and behind the tunnel face is the same as the arrangement method in the step S12;
s16, obtaining a confirmation message, wherein the confirmation message comprises a message that the third measuring point is laid;
s17, sending a command for carrying out a blasting test at the tunnel face of the tunnel;
s18, acquiring peak vibration velocities of the third measuring points, and constructing a first curve and a second curve according to the peak vibration velocities of the third measuring points, wherein the first curve takes the distance between each third measuring point in front of a tunnel face and a blasting center as a horizontal coordinate, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as a vertical coordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
In this step, the first data may be acquired in a manner including step S19, step S110, step S111, step S112, and step S113;
s19, constructing a three-dimensional model of the tunnel, wherein the three-dimensional model comprises a pipeline positioned above the tunnel;
step S110, laying a fourth measuring point on the pipeline, laying a fifth measuring point on the surrounding rock of the pipeline, and performing tunnel blasting numerical simulation operation in the three-dimensional model;
when a fourth measuring point is arranged in the model and the fourth measuring point is arranged on the pipeline, the fourth measuring point is arranged at intervals of 2m along the axis of the pipeline; the position of the fifth measuring point is also that the fifth measuring point is arranged at intervals of 2m along the axis of the pipeline, and the distance between the fourth measuring point and the fifth measuring point can be set according to user definition, but the smaller the distance is, the better the distance is;
step S111, extracting a particle waveform diagram of each fourth measuring point to obtain a peak vibration velocity of each fourth measuring point; extracting a particle waveform diagram of each fifth measuring point to obtain a peak vibration velocity of each fifth measuring point;
step S112, taking the distance between each fourth measuring point and the center of explosion as a horizontal coordinate, and taking the peak value vibration velocity of each fourth measuring point as a vertical coordinate to construct a third curve; taking the distance between each fifth measuring point and the explosion center as a horizontal coordinate, and taking the peak value vibration velocity of each fifth measuring point as a vertical coordinate to construct a fourth curve;
and S113, obtaining the ratio of the vibration speed of the pipeline above the tunnel to the vibration speed of the surrounding rock of the pipeline according to the fourth curve and the third curve.
By the method in the step, after the peak value vibration speed of any measuring point on the surrounding rock is measured, the vibration speed of the pipeline can be calculated through the relation between the fourth curve and the third curve;
after the three parameters are obtained, when a real-time test is performed, the test method is as shown in fig. 12, considering that test points are inconvenient to arrange in front of the tunnel face, the test points are arranged behind the tunnel face, and the specific step S2 is included;
s2, sending a command that at least five first measuring points are arranged behind the tunnel face and field blasting is carried out in the tunnel after the arrangement is finished;
s3, acquiring peak vibration speeds of the first measuring points behind the tunnel face during field blasting, and recording the peak vibration speeds as second data;
s4, calculating to obtain the peak value vibration velocity of each second measuring point according to the second data, the first curve and the second curve, and marking as third data, wherein the second measuring points are positioned in front of the tunnel face; in this step, the specific implementation steps include step S41, step S42, step S43 and step S44;
s41, transforming the first curve into a form of a Sadow-fusi formula, and marking a formula obtained by the transformation as a first formula;
s42, transforming the second curve into a form of the Sudovski formula, and marking the formula obtained by the transformation as a second formula;
s43, calculating according to the first formula and the second formula to obtain a third formula, wherein the third formula comprises a formula for calculating the peak vibration velocity of each third measuring point in front of the tunnel face from the peak vibration velocity of each third measuring point behind the tunnel face;
and S44, substituting the second data into the third formula, and calculating to obtain third data.
When field blasting is carried out, after the peak vibration speed of each first measuring point behind the tunnel face is obtained, the peak vibration speed of a second measuring point in front of the tunnel face can be obtained through a third formula;
and S5, calculating the vibration speed of the pipeline according to the third data and the first data.
The method can obtain the vibration velocity of the pipeline through the measured vibration velocity of the surrounding rock behind the tunnel face, and compared with a monitoring method for predicting the vibration velocity of the pipeline through the ground surface vibration velocity, the indirect monitoring method is more accurate and efficient. The specific implementation steps of this step may include step S51 and step S52;
s51, multiplying the peak vibration speed of each second measuring point in front of the tunnel face and the ratio during the field blasting to obtain a plurality of calculation results;
and S52, solving an average value of all the calculation results to obtain the vibration speed of the pipeline.
After the peak vibration speed of any one second measuring point in front of the tunnel face is obtained through calculation, the peak vibration speed of a certain point on the corresponding pipeline can be obtained, the peak vibration speeds corresponding to a plurality of points on the pipeline can be obtained through the method, and then the vibration speeds of the pipeline can be obtained by averaging all the peak vibration speeds.
At present, the problem of accurate monitoring of pipelines is difficult to solve only by ground indirect monitoring, and through the steps, the embodiment establishes the relationship between the vibration of surrounding rocks around the pipelines and surrounding rocks inside tunnels and the pipeline vibration, so that the pipeline blasting vibration can be more accurately and more conveniently tested, and the safety condition of the pipelines can be evaluated.
The measurement of the vibration velocity of the pipeline can be completed through all the steps, but the steps are performed when the pipeline is positioned in front of the tunnel face. Along with the excavation of the tunnel, the position relationship between the pipeline and the tunnel face also changes, and in the embodiment, when the pipeline is positioned right on the tunnel face, the adopted measuring method is the same as the method for positioning the pipeline in front of the tunnel face; when the pipeline is positioned behind the tunnel face, the vibration velocity of the pipeline can be calculated by directly utilizing the peak vibration velocity of each measuring point behind the tunnel face and the first data, the peak vibration velocities corresponding to a plurality of points on the pipeline can be obtained by the method, and then the average value of all the peak vibration velocities is obtained, so that the vibration velocity of the pipeline can be obtained.
After the pipeline vibration speed is obtained through calculation in the steps, whether the pipeline is in a safe state or not can be analyzed according to the pipeline vibration safety standard, wherein when the pipeline is in the unsafe state through analysis, the blasting parameters can be adjusted to ensure that the pipeline is in the safe state, and normal operation of the pipeline and safe construction of a tunnel can be guaranteed through the method.
Example 2
As shown in fig. 13, the present embodiment provides an underground pipeline vibration velocity measurement system, which includes a fitting curve obtaining module 701, a blasting command sending module 702, a first measurement point vibration velocity obtaining module 703, a peak vibration velocity calculating module 704, and a pipeline vibration velocity calculating module 705.
A fitting curve obtaining module 701, configured to obtain a fitting curve of the vibration velocity of the surrounding rock in front of the tunnel face when blasting is performed in the tunnel, and mark the fitting curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel;
a blasting command sending module 702, configured to send a command that at least five first measuring points are laid behind the tunnel face and field blasting is performed in the tunnel after the laying is completed;
a first measurement point vibration velocity obtaining module 703, configured to obtain a peak vibration velocity of each first measurement point behind the tunnel face during field blasting, and record the peak vibration velocity as second data;
a peak vibration velocity calculation module 704, configured to calculate a peak vibration velocity of each second measurement point according to the second data, the first curve, and the second curve, and record the peak vibration velocity as third data, where the second measurement point is located in front of the tunnel face;
and a pipeline vibration velocity calculation module 705, configured to calculate a vibration velocity of the pipeline according to the third data and the first data.
In a specific embodiment of the present disclosure, the fitting curve obtaining module 701 further includes a three-dimensional model constructing unit 7011, a measurement point arranging unit 7012, a waveform diagram extracting unit 7013, and a fitting curve constructing unit 7014.
A three-dimensional model constructing unit 7011 configured to construct a three-dimensional model of the tunnel;
the measuring point laying unit 7012 is used for laying third measuring points in the tunnel three-dimensional model, wherein a plurality of third measuring points are laid on surrounding rocks behind and in front of the tunnel face;
a waveform diagram extracting unit 7013, configured to perform tunnel blasting numerical simulation operation on the three-dimensional model, and extract a particle vibration velocity waveform diagram of each third measurement point to obtain a peak vibration velocity of each third measurement point;
a fitting curve construction unit 7014, configured to construct the first curve and the second curve according to peak vibration velocities of the third measurement points, where the first curve uses distances between the third measurement points and a center of explosion in front of a tunnel face as an abscissa, and uses peak vibration velocities of the third measurement points in front of the tunnel face as an ordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
In a specific embodiment of the present disclosure, the fitting curve obtaining module 701 further includes a layout sending command unit 7015, a message obtaining unit 7016, a blasting sending command unit 7017, and a vibration velocity obtaining unit 7018.
A sending and laying command unit 7015, configured to send a command for laying a third measurement point in a first tunnel, where the first tunnel has a first tunnel face, the first tunnel is a small-clear-distance tunnel, and when the third measurement point is laid on the first tunnel, all the third measurement points laid on the first tunnel are located behind the first tunnel face;
an obtaining message unit 7016, configured to obtain a confirmation message, where the confirmation message includes a message that the third measurement point has been deployed;
a blasting command sending unit 7017 configured to send a command to perform a blasting test on a tunnel face of the tunnel;
a vibration velocity obtaining unit 7018, configured to obtain a peak vibration velocity of each third measurement point, and construct the first curve and the second curve according to the peak vibration velocity of each third measurement point, where the first curve uses a distance between each third measurement point in front of a tunnel face and a centroid as a horizontal coordinate, and uses the peak vibration velocity of each third measurement point in front of the tunnel face as a vertical coordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
In a specific embodiment of the present disclosure, the peak vibration velocity calculation module 704 further includes a first curve deformation unit 7041, a second curve deformation unit 7042, a third measurement point peak vibration velocity calculation unit 7043, and a data-in unit 7044.
A first curve transforming unit 7041, configured to transform the first curve into a form of a sarofsky formula, and record a formula obtained by the transformation as a first formula;
a second curve deforming unit 7042, configured to deform the second curve into a form of a sarofsky formula, and mark a formula obtained by the deformation as a second formula;
a third measurement point peak vibration velocity calculating unit 7043, configured to obtain a third formula by calculation according to the first formula and the second formula, where the third formula includes a formula in which a peak vibration velocity of each third measurement point in front of the tunnel face is obtained by calculation from a peak vibration velocity of each third measurement point behind the tunnel face;
a data substituting unit 7044, configured to substitute the second data into the third formula, and obtain the third data by calculation.
In a specific embodiment of the present disclosure, the pipeline vibration velocity calculation module 705 further includes a multiplication calculation unit 7051 and an average calculation unit 7052.
A multiplication calculating unit 7051, configured to multiply the peak vibration velocity of each second measuring point in front of the tunnel face when performing the field blasting by the ratio to obtain a plurality of calculation results;
an average calculating unit 7052, configured to average all the calculation results to obtain the vibration velocity of the pipeline.
In a specific embodiment of the present disclosure, the fitting curve obtaining module 701 further includes a tunnel three-dimensional model building unit 7019, a simulation operation unit 70110, a fifth measurement point peak vibration velocity calculating unit 70111, a fourth curve building unit 70112, and a ratio calculating unit 70113.
The tunnel three-dimensional model building unit 7019 is configured to build a three-dimensional model of the tunnel, where the three-dimensional model includes a pipeline located above the tunnel;
the simulation operation unit 70110 is configured to lay a fourth measurement point on the pipeline, lay a fifth measurement point on a surrounding rock of the pipeline, and perform tunnel blasting numerical simulation operation in the three-dimensional model;
a fifth measurement point peak vibration velocity calculation unit 70111, configured to extract a particle waveform diagram of each fourth measurement point to obtain a peak vibration velocity of each fourth measurement point; extracting a particle waveform diagram of each fifth measuring point to obtain a peak vibration velocity of each fifth measuring point;
a fourth curve constructing unit 70112, configured to construct a third curve by taking a distance between each fourth measuring point and the center of explosion as a horizontal coordinate and taking a peak vibration velocity of each fourth measuring point as a vertical coordinate; taking the distance between each fifth measuring point and the center of explosion as a horizontal coordinate, and taking the peak vibration velocity of each fifth measuring point as a vertical coordinate to construct a fourth curve;
and a ratio calculating unit 70113, configured to obtain, according to the fourth curve and the third curve, a ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline.
It should be noted that, regarding the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated herein.
Example 3
Corresponding to the above method embodiments, the embodiments of the present disclosure further provide an underground pipeline vibration velocity measuring apparatus, and the underground pipeline vibration velocity measuring apparatus described below and the underground pipeline vibration velocity measuring method described above may be referred to with each other.
FIG. 14 is a block diagram illustrating an underground utility velocity determination facility 800 according to an exemplary embodiment. As shown in fig. 14, the underground utility velocity measurement apparatus 800 may include: a processor 801, a memory 802. The underground pipeline vibration velocity measurement apparatus 800 may further include one or more of a multimedia component 803, an i/O interface 804, and a communication component 805.
The processor 801 is configured to control the overall operation of the underground pipeline vibration velocity measurement apparatus 800, so as to complete all or part of the steps of the underground pipeline vibration velocity measurement method. The memory 802 is used to store various types of data to support operation of the subterranean pipeline vibro-metry apparatus 800, such data can include, for example, instructions for any application or method operating on the subterranean pipeline vibro-metry apparatus 800, as well as application-related data, such as contact data, messages sent or received, pictures, audio, video, and the like. The Memory 802 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically Erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 803 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 802 or transmitted through the communication component 805. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 804 provides an interface between the processor 801 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication module 805 is used for wired or wireless communication between the underground pipeline vibration velocity measurement apparatus 800 and other apparatuses. Wireless communication, such as Wi-Fi, bluetooth, near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so that the corresponding communication component 805 may include: wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the underground pipeline velocity determining apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for performing the underground pipeline velocity determining method.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described method for determining a vibratory velocity of an underground utility is also provided. For example, the computer readable storage medium may be the memory 802 including the program instructions, which are executable by the processor 801 of the underground pipeline vibration velocity measurement apparatus 800 to perform the underground pipeline vibration velocity measurement method.
Example 4
Corresponding to the above method embodiment, the embodiment of the present disclosure further provides a readable storage medium, and a readable storage medium described below and the underground pipeline vibration velocity determination method described above may be referred to correspondingly.
The readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the underground pipeline vibration velocity measuring method of the embodiment of the method are realized.
The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various readable storage media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The underground pipeline vibration velocity measuring method is characterized by comprising the following steps:
acquiring a surrounding rock vibration velocity fitting curve in front of a tunnel face during blasting in a tunnel, and recording the curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel;
sending a command that at least five first measuring points are arranged behind the tunnel face and the on-site blasting is carried out in the tunnel after the arrangement is finished;
acquiring peak vibration speeds of the first measuring points behind the tunnel face during field blasting, and recording the peak vibration speeds as second data;
calculating the peak value vibration velocity of each second measuring point according to the second data, the first curve and the second curve, and marking as third data, wherein the second measuring points are positioned in front of the tunnel face;
and calculating the vibration speed of the pipeline according to the third data and the first data.
2. The method for measuring the vibration velocity of an underground pipeline according to claim 1, wherein the method for obtaining the first curve and the second curve comprises:
constructing a three-dimensional model of the tunnel;
third measuring points are arranged in the tunnel three-dimensional model, wherein a plurality of third measuring points are arranged on surrounding rocks behind and in front of the tunnel face of the tunnel;
performing tunnel blasting numerical simulation operation in the three-dimensional model, and extracting a particle vibration velocity oscillogram of each third measuring point to obtain a peak vibration velocity of each third measuring point;
constructing the first curve and the second curve according to the peak vibration velocity of each third measuring point, wherein the first curve takes the distance between each third measuring point in front of the tunnel face and the explosion center as a horizontal coordinate, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as a vertical coordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as a horizontal coordinate, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as a vertical coordinate.
3. The method for measuring the vibration velocity of an underground pipeline according to claim 1, wherein the method for obtaining the first curve and the second curve comprises:
sending a command for laying third measuring points in a first tunnel, wherein the first tunnel is provided with a first tunnel face, the first tunnel is a small clear distance tunnel, and when the third measuring points are laid on the first tunnel, all the third measuring points laid on the first tunnel are positioned behind the first tunnel face;
acquiring a confirmation message, wherein the confirmation message comprises a message that the third measuring point is laid;
sending a command for carrying out a blasting test at the tunnel face of the tunnel;
acquiring the peak vibration velocity of each third measuring point, and constructing a first curve and a second curve according to the peak vibration velocity of each third measuring point, wherein the first curve takes the distance between each third measuring point in front of the tunnel face and the explosive center as a horizontal coordinate, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as a vertical coordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
4. The method for determining the vibration velocity of an underground pipeline according to claim 2 or 3, wherein the step of calculating third data from the second data, the first curve and the second curve comprises:
the first curve is deformed into a Sudovus formula form, and a formula obtained through deformation is marked as a first formula;
the second curve is deformed into a form of a Sudovski formula, and the formula obtained by deformation is marked as a second formula;
calculating according to the first formula and the second formula to obtain a third formula, wherein the third formula comprises a formula for calculating the peak vibration velocity of each third measuring point in front of the tunnel face from the peak vibration velocity of each third measuring point behind the tunnel face;
and substituting the second data into the third formula, and calculating to obtain third data.
5. Underground pipeline vibration velocity survey system characterized by includes:
the fitting curve acquisition module is used for acquiring a fitting curve of the vibration velocity of surrounding rock in front of the tunnel face during blasting in the tunnel and recording the fitting curve as a first curve; acquiring a surrounding rock vibration velocity fitting curve behind a tunnel face during blasting in the tunnel, and recording the curve as a second curve; acquiring the ratio of the vibration velocity of the pipeline above the tunnel to the vibration velocity of the surrounding rock of the pipeline, and recording the ratio as first data; a preset distance is reserved between the pipeline and the tunnel;
the blasting command sending module is used for sending a command that at least five first measuring points are arranged behind the tunnel face and field blasting is carried out in the tunnel after the arrangement is finished;
the first measuring point vibration velocity obtaining module is used for obtaining the peak value vibration velocity of each first measuring point behind the tunnel face during field blasting and recording the peak value vibration velocity as second data;
the peak vibration velocity calculating module is used for calculating the peak vibration velocity of each second measuring point according to the second data, the first curve and the second curve, and marking the peak vibration velocity as third data, wherein the second measuring points are positioned in front of the tunnel face;
and the pipeline vibration velocity calculating module is used for calculating the vibration velocity of the pipeline according to the third data and the first data.
6. The system for determining the vibration velocity of an underground pipeline according to claim 5, wherein the fitting curve obtaining module comprises:
a three-dimensional model construction unit for constructing a three-dimensional model of the tunnel;
the measuring point distribution unit is used for distributing third measuring points in the tunnel three-dimensional model, wherein a plurality of third measuring points are distributed on surrounding rocks behind and in front of the tunnel face;
the waveform drawing extraction unit is used for carrying out tunnel blasting numerical simulation operation in the three-dimensional model, and extracting a particle vibration velocity waveform drawing of each third measuring point to obtain a peak vibration velocity of each third measuring point;
the fitting curve construction unit is used for constructing the first curve and the second curve according to the peak vibration velocity of each third measuring point, the first curve takes the distance between each third measuring point in front of the tunnel face and the explosion center as an abscissa, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as an ordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
7. The underground pipeline vibration velocity determination system according to claim 5, wherein the fitting curve acquisition module comprises:
the system comprises a command sending and laying unit, a data processing unit and a data processing unit, wherein the command sending and laying unit is used for sending a command for laying a third measuring point in a first tunnel, the first tunnel is provided with a first tunnel face, the first tunnel is a small-clear-distance tunnel, and when the third measuring point is laid on the first tunnel, all the third measuring points laid on the first tunnel are positioned behind the first tunnel face;
the message acquiring unit is used for acquiring a confirmation message, wherein the confirmation message comprises a message that the third measuring point is laid;
a blasting command sending unit element for sending a command of performing a blasting test at the tunnel face of the tunnel;
the vibration velocity obtaining unit is used for obtaining peak vibration velocities of the third measuring points, and constructing a first curve and a second curve according to the peak vibration velocities of the third measuring points, wherein the first curve takes the distance between each third measuring point in front of the tunnel face and the center of explosion as a horizontal coordinate, and takes the peak vibration velocity of each third measuring point in front of the tunnel face as a vertical coordinate; the second curve takes the distance between each third measuring point behind the tunnel face and the center of explosion as an abscissa, and takes the peak value vibration velocity of each third measuring point behind the tunnel face as an ordinate.
8. The underground pipeline vibration velocity determination system according to claim 6 or 7, wherein the peak vibration velocity calculation module comprises:
the first curve deformation unit is used for deforming the first curve into a form of a Savowski formula, and the formula obtained by deformation is marked as a first formula;
the second curve deformation unit is used for deforming the second curve into a form of a Sudovski formula, and marking the formula obtained by deformation as a second formula;
the third measuring point peak value vibration velocity calculating unit is used for calculating according to the first formula and the second formula to obtain a third formula, wherein the third formula comprises a formula for calculating the peak value vibration velocity of each third measuring point in front of the tunnel face from the peak value vibration velocity of each third measuring point behind the tunnel face;
and the data bringing unit is used for bringing the second data into the third formula and calculating to obtain the third data.
9. An underground pipeline vibration velocity measuring device is characterized by comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method for determining the vibration velocity of an underground pipeline according to any one of claims 1 to 4 when the computer program is executed.
10. A readable storage medium, characterized by: the readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method of determining the vibratory velocity of an underground utility according to any one of claims 1 to 4.
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