CN115371791A - Underground pipeline vibration velocity measuring method and system - Google Patents

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

Method and system for measuring vibration velocity of underground pipeline

technical field

The invention relates to the technical field of tunnels, in particular to a method and system for measuring the vibration velocity of an underground pipeline.

Background technique

At present, there are relatively few studies on the monitoring methods of pipelines under tunnel blasting vibration. The monitoring methods can be divided into two types, one is the direct monitoring method, that is, the vibration velocity sensor is directly installed on the pipeline for testing. However, whether it is a shallow buried pipeline or a deep buried pipeline, directly excavating to the pipeline and then installing sensors is likely to cause damage to the pipeline. In addition to the control of pipelines by relevant departments, it is difficult to directly install sensors on pipelines for direct testing. The second is the indirect monitoring method, that is, through the vibration velocity test around the pipeline, and then calculate the vibration velocity at the pipeline according to their relationship. For relatively shallow buried pipelines, it is more common to conduct vibration velocity tests on the ground, and then indirectly control the vibration velocity at the pipeline. For deeply buried pipelines, it is proposed to arrange sensors at different depths on the surface and underground to obtain the propagation law of blasting seismic waves along the vertical direction, so as to indirectly calculate the actual vibration velocity at the pipeline. However, this method needs to drill deep holes. Implementation is more difficult.

Contents of the invention

The object of the present invention is to provide a method and system for measuring the vibration velocity of underground pipelines to improve the above problems.

In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions:

On the one hand, the embodiment of the present application provides a method for measuring the vibration velocity of an underground pipeline, the method comprising:

Obtain the fitting curve of the vibration velocity of the surrounding rock in front of the face of the tunnel when blasting in the tunnel, which is recorded as the first curve; obtain the fitting curve of the vibration velocity of the surrounding rock behind the face of the tunnel when blasting in the tunnel, and record it as the second curve; Obtain the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline, and record it as the first data; there is a preset distance between the pipeline and the tunnel;

Sending an order to deploy at least five first measuring points behind the tunnel face, and to carry out on-site blasting in the tunnel after the deployment is completed;

Obtaining the peak vibration velocity of each of the first measuring points behind the tunnel face during on-site blasting, and recording it as the second data;

According to the second data, the first curve and the second curve, the peak vibration velocity of each second measuring point is calculated and recorded as the third data, and the second measuring point is located in front of the tunnel face ;

The vibration velocity of the pipeline is calculated according to the third data and the first data.

In the second aspect, the embodiment of the present application provides an underground pipeline vibration velocity measurement system. The system includes a fitting curve acquisition module, a blasting command sending module, a first measuring point vibration velocity acquisition module, a peak vibration velocity calculation module, and a pipeline vibration velocity computing module.

The fitting curve acquisition module is used to obtain the fitting curve of the vibration velocity of the surrounding rock in front of the face when blasting in the tunnel, which is denoted as the first curve; it is used to obtain the fitting curve of the vibration velocity of the surrounding rock behind the face when blasting in the tunnel The curve is recorded as the second curve; the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline is obtained, which is recorded as the first data; there is a preset distance between the pipeline and the tunnel;

Sending a blasting command module, configured to send an order for laying at least five first measuring points behind the tunnel face, and performing on-site blasting in the tunnel after the laying is completed;

The vibration velocity acquisition module of the first measuring point is used to obtain the peak vibration velocity of each of the first measuring points behind the tunnel face when performing on-site blasting, which is recorded as the second data;

The peak vibration velocity calculation module is used to calculate the peak vibration velocity of each second measurement point according to the second data, the first curve and the second curve, which is recorded as the third data, and the second measurement The point is located in front of the palm face;

A pipeline vibration velocity calculation module, configured to calculate the vibration velocity of the pipeline according to the third data and the first data.

In a third aspect, the embodiment of the present application provides an underground pipeline vibration velocity measurement device, and the device includes a memory and a processor. The memory is used to store the computer program; the processor is used to implement the steps of the method for measuring the vibration velocity of the underground pipeline when executing the computer program.

In a fourth aspect, the embodiment of the present application provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method for measuring the vibration velocity of underground pipelines are realized.

The beneficial effects of the present invention are:

1. At present, it is difficult to solve the problem of precise monitoring of pipelines only relying on indirect monitoring on the ground. However, the present invention establishes the relationship between the vibration of the surrounding rock around the pipeline and the vibration of the surrounding rock inside the tunnel and the vibration of the pipeline, so that it can be more accurate and convenient. Testing the blasting vibration of the pipeline is beneficial to evaluate the safety of the pipeline.

2. In the present invention, the vibration velocity at the pipeline can be obtained through the measured vibration velocity of the surrounding rock behind the tunnel face. Compared with the monitoring method of predicting the pipeline vibration velocity through the ground surface vibration velocity, the indirect monitoring method of the present invention The method is more precise and efficient.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic flow chart of the underground pipeline vibration velocity measurement method described in the embodiment of the present invention;

Fig. 2 is the fitting curve of the peak vibration velocity of the measuring point in front of the hard rock face described in the embodiment of the present invention;

Fig. 3 is the fitting curve of the peak vibration velocity of the measuring point behind the hard rock face described in the embodiment of the present invention;

Fig. 4 is the fitting curve of the peak vibration velocity of the measuring point in front of the medium hard rock face described in the embodiment of the present invention;

Fig. 5 is the fitting curve of the peak vibration velocity of the measuring point behind the medium hard rock face described in the embodiment of the present invention;

Fig. 6 is the fitting curve of the peak vibration velocity of the measuring point in front of the soft rock tunnel face described in the embodiment of the present invention;

Fig. 7 is the fitting curve of the peak vibration velocity of the measuring point behind the soft rock face described in the embodiment of the present invention;

Fig. 8 is the fitting curve of the peak vibration velocity of the measured points behind the face of the hard rock face described in the embodiment of the present invention;

Fig. 9 is the fitting curve of the peak vibration velocity of the measuring points behind the face of the middle hard rock face described in the embodiment of the present invention;

Fig. 10 is the fitting curve of the peak vibration velocity of the measuring points behind the front and rear of the soft rock tunnel described in the embodiment of the present invention;

Fig. 11 is a schematic diagram of the arrangement of measuring points described in step S15 in the embodiment of the present invention;

Fig. 12 is a test schematic diagram during real-time test in the embodiment of the present invention;

Fig. 13 is a schematic structural diagram of an underground pipeline vibration velocity measurement system described in an embodiment of the present invention;

Fig. 14 is a schematic structural diagram of the underground pipeline vibration velocity measurement device described in the embodiment of the present invention;

Marks in the figure: 701, fitting curve acquisition module; 702, blasting command sending module; 703, first measuring point vibration velocity acquisition module; 704, peak vibration velocity calculation module; 705, pipeline vibration velocity calculation module; 7011, three-dimensional model Construction unit; 7012, measuring point layout unit; 7013, waveform image extraction unit; 7014, fitting curve construction unit; 7015, sending layout command unit; 7016, obtaining message unit; 7017, sending blasting command unit; 7018, vibration velocity acquisition Unit; 7041, the first curve deformation unit; 7042, the second curve deformation unit; 7043, the third measurement point peak vibration velocity calculation unit; 7044, the input data unit; 7051, the multiplication calculation unit; 7052, the average calculation unit; 7019. Tunnel 3D model construction unit; 70110. Simulation operation unit; 70111. Peak vibration velocity calculation unit at the fifth measuring point; 70112. Tunnel 3D model construction unit; 70113. Ratio calculation unit; 800. Underground pipeline vibration velocity measurement equipment; 801 . Processor; 802. Memory; 803. Multimedia component; 804. I/O interface; 805. Communication component.

Detailed ways

In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that similar reference numerals or letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Example 1

As shown in FIG. 1 , this embodiment provides a method for measuring the vibration velocity of an underground pipeline, which includes step S1 , step S2 , step S3 , step S4 and step S5 .

Step S1. Obtain the fitting curve of the vibration velocity of the surrounding rock in front of the face of the tunnel when blasting in the tunnel, which is recorded as the first curve; obtain the fitting curve of the vibration velocity of the surrounding rock behind the face of the tunnel when blasting in the tunnel, which is recorded as the second curve Two curves; obtain the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline, and record it as the first data; there is a preset distance between the pipeline and the tunnel; in this step, the pipeline and the tunnel There is a preset distance between them, and the preset distance is less than or equal to 1-2 times the span of the tunnel. In addition to having a certain distance, the pipeline and the tunnel should preferably be in the same formation, because if the distance between the pipeline and the tunnel is far , may reduce the accuracy of the vibration velocity of the final pipeline. Therefore, in this embodiment, the positional relationship between the pipeline and the tunnel is restricted. This method can increase the vibration velocity of the final pipeline measured accuracy.

In this step, the first curve and the second curve can be obtained by numerical simulation, and the specific implementation method can include step S11, step S12, step S13 and step S14.

Step S11, building a three-dimensional model of the tunnel;

In order to save calculation costs, this embodiment establishes a 1/2 symmetrical model with the YOZ plane as the symmetric plane. The model size is 100m (length) × 10m (width) × 15m (height), and the unit size is controlled at about 20cm. Add symmetry constraints to the symmetry planes of the model, and define the rest of the planes as no-reflection boundaries. A single blast hole is used to simulate the detonation, and the single blasting charge is 8kg. In addition, in this embodiment, the MAT_PLASTIC_KINEMATIC material model including the strain rate effect is used to simulate the surrounding rock, and the conditions of different surrounding rock levels are simulated by changing the material model parameters.

The specific parameters are shown in Table 1;

Table 1. Surrounding rock material parameters at all levels

During the construction process, according to the above steps, the first curve and the second curve corresponding to hard rock, soft rock and medium hard rock can be constructed;

Step S12, arranging a third measuring point in the three-dimensional model of the tunnel, wherein a plurality of the third measuring points are arranged on the surrounding rock behind the face of the tunnel and in front;

In this step, when the third measuring point is arranged on the surrounding rock behind the tunnel face, a third measuring point is arranged every 1m within the range of 10m behind the tunnel face, and the third measuring point is arranged at an interval of 10m behind the tunnel face. Within the range of -30m, arrange a third measuring point every 5m, within the range of 30m-50m behind the working face, arrange a third measuring point every 10m; according to the arrangement on the surrounding rock behind the working face The method of the third measuring point is to set multiple third measuring points on the surrounding rock in front of the tunnel; at the same time, when laying out the third measuring point, it is best to arrange all the measuring points on a straight line;

Step S13, performing a tunnel blasting numerical simulation operation in the three-dimensional model, extracting the particle vibration velocity waveform diagram of each of the third measuring points, and obtaining the peak vibration velocity of each of the third measuring points;

After the numerical simulation of tunnel blasting, the particle velocity waveform diagram of each third measuring point can be extracted, and the peak vibration velocity of each measuring point can be obtained according to the waveform diagram. After obtaining the peak vibration velocity, the step S14 can be passed. The method completes the construction of the first curve and the second curve;

Step S14, constructing the first curve and the second curve according to the peak vibration velocity of each of the third measuring points, the first curve is based on the distance between each of the third measuring points in front of the tunnel face and the blast center is the abscissa, taking the peak vibration velocity of each of the third measuring points in front of the tunnel face as the ordinate; the second curve is taking the distance between each of the third measuring points and the blast center behind the tunnel face as the abscissa , taking the peak vibration velocity of each of the third measuring points behind the tunnel face as the ordinate.

Through the above method, the peak vibration velocity fitting curve of the measuring points in front of the hard rock face can be obtained; the peak vibration velocity fitting curve of the measuring points behind the hard rock face; Fitting curve; peak vibration velocity fitting curve of measuring points behind the face of medium-hard rock; fitting curve of peak vibration velocity of measuring points in front of the face of soft rock; fitting curve of peak vibration velocity of measuring points behind the face of soft rock, for example As shown in Fig. 2-Fig. 7, the vibration velocity fitting curves in front and rear of surrounding rock at all levels can be shown in Table 2.

Table 2 Fitting curves in front and rear of surrounding rock at all levels

In addition to obtaining the above fitting curve, the front and rear surrounding rock vibration velocities can also be drawn in a graph for comparison. The velocity fitting curve and the peak vibration velocity fitting curve of the measuring points in front and rear of the soft rock tunnel are shown in Figures 8, 9 and 10 respectively;

In addition to the method in step S11, step S12, step S13 and step S14, the first curve and the second curve can be obtained, and it can also be obtained by conducting field tests in the tunnel. The specific implementation method can include steps S15, Step S16, step S17 and step S18;

Step S15, sending an order to lay out a third measuring point in the first tunnel, the first tunnel has a first face, the first tunnel is a tunnel with a small clear distance, and the first tunnel is arranged on the first tunnel In the case of three measuring points, all the third measuring points arranged on the first tunnel are located behind the first tunnel face;

As shown in Figure 11, in this step, the first tunnel can be understood as the leading tunnel, and the tunnel can be understood as the backward tunnel, and the distance between the leading tunnel and the backward tunnel is less than or equal to the span of the backward tunnel , the span of the leading tunnel and the backward tunnel are the same; when it is necessary to obtain the vibration velocity of the surrounding rock in front of and behind the tunnel, the third measuring point is arranged in the leading tunnel instead of in the backward tunnel. The method of laying out the third measuring point in the front and rear is the same as the laying method in step S12;

Step S16, obtaining a confirmation message, the confirmation message including the message that the third measuring point has been laid out;

Step S17, sending an order to conduct a blasting test at the face of the tunnel;

Step S18, obtaining the peak vibration velocity of each of the third measuring points, and constructing the first curve and the second curve according to the peak vibration velocity of each of the third measuring points, the first curve is based on the tunnel palm The distance between each of the third measuring points in front of the tunnel face and the blast center is the abscissa, and the peak vibration velocity of each of the third measuring points in front of the tunnel face is the ordinate; The distance between each of the third measuring points and the blast center is the abscissa, and the peak vibration velocity of each of the third measuring points behind the tunnel face is the ordinate.

In this step, the way of acquiring the first data may include step S19, step S110, step S111, step S112 and step S113;

Step S19, constructing a three-dimensional model of the tunnel, the three-dimensional model including pipelines above the tunnel;

Step S110, arranging a fourth measuring point on the pipeline, arranging a fifth measuring point on the surrounding rock of the pipeline, and performing a tunnel blasting numerical simulation operation in the three-dimensional model;

When laying out the fourth measuring point in the model, when laying out the fourth measuring point on the pipeline, arrange the fourth measuring point every 2m along the axis of the pipeline; the position of the fifth measuring point is also every 2m along the axis of the pipeline Layout the fifth measuring point, the distance between the fourth measuring point and the fifth measuring point can be set according to user-defined, but the smaller the better;

Step S111, extracting the particle waveform diagram of each of the fourth measuring points to obtain the peak vibration velocity of each of the fourth measuring points; extracting the particle waveform diagram of each of the fifth measuring points to obtain each of the fifth measuring points the peak vibration velocity;

Step S112, taking the distance between each of the fourth measuring points and the detonation center as the abscissa, and the peak vibration velocity of each of the fourth measuring points as the ordinate to construct a third curve; The distance between is used as the abscissa, and the peak vibration velocity of each of the fifth measuring points is used as the ordinate to construct the fourth curve;

Step S113: Obtain the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline according to the fourth curve and the third curve.

Through the method in this step, after measuring the peak vibration velocity of any measuring point on the surrounding rock, the vibration velocity of the pipeline can be calculated through the relationship between the fourth curve and the third curve;

After obtaining the above three parameters, when performing real-time testing, the test method is shown in Figure 12. Considering that it is inconvenient to arrange measuring points in front of the palm face, all measuring points are arranged behind the palm face. Concrete step S2;

Step S2, sending an order to deploy at least five first measuring points behind the tunnel face, and to carry out on-site blasting in the tunnel after the deployment is completed;

Step S3. Obtain the peak vibration velocity of each of the first measuring points behind the tunnel face during on-site blasting, and record it as the second data;

Step S4, according to the second data, the first curve and the second curve, calculate the peak vibration velocity of each second measuring point, record it as the third data, and the second measuring point is located in the palm In front of the sub-front; in this step, the specific implementation steps include step S41, step S42, step S43 and step S44;

Step S41, transforming the first curve into the form of Sadovsky's formula, and recording the transformed formula as the first formula;

Step S42, transforming the second curve into the form of Sadovsky's formula, and recording the transformed formula as the second formula;

Step S43, calculate according to the first formula and the second formula to obtain a third formula, the third formula includes calculating the peak vibration velocity of each of the third measuring points behind the palm face to obtain the palm The formula for the peak vibration velocity of each of the third measuring points in front of the subface;

Step S44, bringing the second data into the third formula to calculate the third data.

When performing on-site blasting, after obtaining the peak vibration velocity of each first measuring point behind the tunnel face, the peak vibration velocity of the second measuring point in front of the tunnel face can be calculated through the third formula;

Step S5, calculating the vibration velocity of the pipeline according to the third data and the first data.

Through the method of this step, the vibration velocity at the pipeline can be obtained from the measured vibration velocity of the surrounding rock behind the face. Compared with the monitoring method of predicting the pipeline vibration velocity through the surface vibration velocity, this indirect monitoring method is more accurate and efficient . The specific implementation steps of this step may include step S51 and step S52;

Step S51, multiplying the peak vibration velocity of each of the second measuring points in front of the tunnel face and the ratio by the ratio to obtain a plurality of calculation results;

Step S52, calculating the average value of all the calculation results to obtain the vibration velocity of the pipeline.

After calculating the peak vibration velocity of any one of the second measuring points in front of the tunnel face, the peak vibration velocity of a certain point on the corresponding pipeline can be obtained. Through this method, the peak vibration velocity corresponding to multiple points on the pipeline can be obtained. Vibration velocity, and then calculate the average value of all peak vibration velocities to get the vibration velocity of the pipeline.

At present, it is difficult to solve the problem of precise monitoring of pipelines only relying on indirect monitoring on the ground. Through the above steps, this embodiment establishes the relationship between the vibration of the surrounding rock around the pipeline and the surrounding rock inside the tunnel and the vibration of the pipeline, so that it can be more accurate, It is more convenient to test the blasting vibration of the pipeline, which is beneficial to evaluate the safety of the pipeline.

The measurement of the vibration velocity of the pipeline can be completed through all the above steps, but the above steps are aimed at the situation that the pipeline is located in front of the tunnel face. With the excavation of the tunnel, the positional relationship between the pipeline and the tunnel face will also change. In this embodiment, when the pipeline is located on the front side of the tunnel face, the measurement method adopted is the same as that of the pipeline located in front of the tunnel face. same; when the pipeline is located behind the tunnel face, the vibration velocity of the pipeline can be calculated directly by using the peak vibration velocity of each measuring point behind the tunnel face and the first data. The peak vibration velocity corresponding to the point, and then calculate the average value of all the peak vibration velocities to obtain the pipeline vibration velocity.

After the pipeline vibration velocity is calculated through the above steps, it is also possible to analyze whether the pipeline is in a safe state according to the pipeline vibration safety standards. When the analysis shows that the pipeline is in an unsafe state, the blasting parameters can be adjusted to To ensure that the pipeline is in a safe state, the normal operation of the pipeline and the safe construction of the tunnel can be guaranteed in this way.

Example 2

As shown in Figure 13, this embodiment provides an underground pipeline vibration velocity measurement system, the system includes a fitting curve acquisition module 701, a blasting command sending module 702, a first measuring point vibration velocity acquisition module 703, and a peak vibration velocity calculation module 704 and pipeline vibration velocity calculation module 705.

The fitting curve obtaining module 701 is used to obtain the fitting curve of the vibration velocity of the surrounding rock in front of the tunnel face when blasting in the tunnel, which is denoted as the first curve; The combined curve is recorded as the second curve; the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline is obtained, which is recorded as the first data; there is a preset distance between the pipeline and the tunnel;

Sending a blasting command module 702, configured to send an order to lay out at least five first measuring points behind the tunnel face, and carry out on-site blasting in the tunnel after the laying is completed;

The first measuring point vibration velocity acquisition module 703 is used to acquire the peak vibration velocity of each of the first measuring points behind the tunnel face during on-site blasting, which is recorded as the second data;

The peak vibration velocity calculation module 704 is used to calculate the peak vibration velocity of each second measurement point according to the second data, the first curve and the second curve, which is recorded as the third data, and the second The measuring point is located in front of the palm face;

A pipeline vibration velocity calculation module 705, configured to calculate the vibration velocity of the pipeline according to the third data and the first data.

In a specific implementation manner of the present disclosure, the fitting curve acquisition module 701 further includes a 3D model construction unit 7011 , a measurement point layout unit 7012 , a waveform image extraction unit 7013 and a fitting curve construction unit 7014 .

A three-dimensional model construction unit 7011, configured to construct a three-dimensional model of the tunnel;

The measuring point arrangement unit 7012 is used to arrange a third measuring point in the three-dimensional model of the tunnel, wherein a plurality of the third measuring points are arranged behind the tunnel face and on the surrounding rock in front;

Waveform image extraction unit 7013, used to perform tunnel blasting numerical simulation operation in the three-dimensional model, extract particle vibration velocity waveform images of each of the third measuring points, and obtain the peak vibration velocity of each of the third measuring points;

A fitting curve construction unit 7014, configured to construct the first curve and the second curve according to the peak vibration velocity of each of the third measurement points, and the first curve is based on the third curve in front of the tunnel face. The distance between the measuring point and the blast center is the abscissa, and the peak vibration velocity of each of the third measuring points in front of the tunnel face is the ordinate; The distance from the center of explosion is the abscissa, and the peak vibration velocity of each of the third measuring points behind the tunnel face is the ordinate.

In a specific implementation manner of the present disclosure, the fitting curve acquisition module 701 further includes a sending deployment command unit 7015 , a message acquisition unit 7016 , a blasting command sending unit 7017 and a vibration velocity acquisition unit 7018 .

The sending and laying command unit 7015 is used to send an order for laying out the third measuring point in the first tunnel, the first tunnel has a first face, the first tunnel is a tunnel with a small clear distance, and the first tunnel has a small clearance distance. When arranging the third measuring points above, all the third measuring points arranged on the first tunnel are located behind the first tunnel face;

Obtaining a message unit 7016, configured to obtain a confirmation message, the confirmation message including the message that the third measuring point has been laid out;

sending blasting command unit 7017, configured to send an order for blasting test at the face of the tunnel;

The vibration velocity acquiring unit 7018 is configured to acquire the peak vibration velocity of each of the third measuring points, and construct the first curve and the second curve according to the peak vibration velocity of each of the third measuring points, the first A curve takes the distance between each of the third measuring points in front of the tunnel face and the blast center as the abscissa, and takes the peak vibration velocity of each of the third measuring points in front of the tunnel face as the ordinate; The distance between each of the third measuring points behind the tunnel face and the blast center is the abscissa, and the peak vibration velocity of each of the third measuring points behind the tunnel face is the ordinate.

In a specific implementation manner 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 the input data Unit 7044.

The first curve deformation unit 7041 is configured to deform the first curve into the form of Sadovsky's formula, and record the deformed formula as the first formula;

The second curve deformation unit 7042 is configured to deform the second curve into the form of Sadovsky's formula, and record the deformed formula as the second formula;

The third measurement point peak vibration velocity calculation unit 7043 is configured to calculate and obtain a third formula according to the first formula and the second formula, and the third formula includes The peak vibration velocity of the point is calculated to obtain the formula of the peak vibration velocity of each of the third measuring points in front of the tunnel face;

Bring in data unit 7044, configured to bring the second data into the third formula to calculate the third data.

In a specific implementation manner of the present disclosure, the pipeline vibration velocity calculation module 705 further includes a multiplication calculation unit 7051 and an average calculation unit 7052 .

The multiplication calculation unit 7051 is used to multiply the peak vibration velocity of each of the second measuring points in front of the tunnel face and the ratio by the ratio to obtain multiple calculation results;

The average calculation unit 7052 is configured to calculate the average value of all the calculation results to obtain the vibration velocity of the pipeline.

In a specific implementation of the present disclosure, the fitting curve acquisition module 701 also includes a tunnel three-dimensional model construction unit 7019, a simulation operation unit 70110, a fifth measuring point peak vibration velocity calculation unit 70111, and a fourth curve construction unit 70112 and ratio calculation unit 70113.

A tunnel three-dimensional model construction unit 7019, configured to construct a three-dimensional model of the tunnel, the three-dimensional model including pipelines above the tunnel;

The simulation operation unit 70110 is used to arrange the fourth measuring point on the pipeline, arrange the fifth measuring point on the surrounding rock of the pipeline, and perform tunnel blasting numerical simulation operation in the three-dimensional model;

The peak vibration velocity calculation unit 70111 of the fifth measuring point is used to extract the particle waveform diagram of each of the fourth measuring points to obtain the peak vibration velocity of each of the fourth measuring points; extract the particle waveform of each of the fifth measuring points Figure, obtains the peak vibration velocity of each described the 5th measuring point;

The fourth curve construction unit 70112 is used to use the distance between each of the fourth measuring points and the explosion center as the abscissa, and the peak vibration velocity of each of the fourth measuring points as the ordinate to construct a third curve; The distance between the fifth measuring point and the explosion center is used as the abscissa, and the peak vibration velocity of each of the fifth measuring points is used as the ordinate to construct the fourth curve;

The ratio calculation unit 70113 is configured to obtain the ratio between the vibration velocity of the pipeline above the tunnel and the vibration velocity of the surrounding rock of the pipeline according to the fourth curve and the third curve.

It should be noted that, with regard to the apparatus in the above embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Example 3

Corresponding to the above method embodiment, the embodiment of the present disclosure also provides an underground pipeline vibration velocity measurement device. The underground pipeline vibration velocity measurement equipment described below and the underground pipeline vibration velocity measurement method described above can be referred to for each other.

Fig. 14 is a block diagram of an underground pipeline vibration velocity measuring device 800 according to an exemplary embodiment. As shown in FIG. 14 , the underground pipeline vibration velocity measuring device 800 may include: a processor 801 and a memory 802 . The underground pipeline vibration velocity measurement device 800 may also include one or more of a multimedia component 803 , an I/O interface 804 , and a communication component 805 .

Wherein, the processor 801 is used to control the overall operation of the underground pipeline vibration velocity measurement device 800, so as to complete all or part of the steps in the above-mentioned underground pipeline vibration velocity measurement method. The memory 802 is used to store various types of data to support the operation of the underground pipeline vibration velocity measurement device 800, such data may include instructions for any application or method operating on the underground pipeline vibration velocity measurement device 800 , and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be realized by any type of volatile or non-volatile memory device or their combination, such as Static Random Access Memory (Static Random Access Memory, referred to as SRAM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read Only Memory) Erasable Programmable Read-Only Memory, referred to as EEPROM), Erasable Programmable Read-Only Memory (Erasable Programmable Read-Only Memory, referred to as EPROM), Programmable Read-Only Memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory) -Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. Multimedia components 803 may include screen and audio components. The screen can be, for example, a touch screen, and the audio component is used for outputting and/or inputting audio signals. For example, an audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 802 or sent through the communication component 805 . The audio component 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, which may be a keyboard, a mouse, buttons, and the like. These buttons can be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the underground pipeline vibration velocity measuring device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 805 may include: Wi -Fi module, bluetooth module, NFC module.

In an exemplary embodiment, the underground pipeline vibration velocity measuring device 800 may be implemented by one or more application-specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), digital signal processors (Digital Signal Processor, DSP for short), digital signal Processing equipment (Digital Signal Processing Device, referred to as DSPD), programmable logic device (Programmable Logic Device, referred to as PLD), field programmable gate array (Field Programmable Gate Array, referred to as FPGA), controller, microcontroller, microprocessor or The implementation of other electronic components is used to implement the above method for measuring the vibration velocity of underground pipelines.

In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided. When the program instructions are executed by a processor, the steps of the above-mentioned method for measuring vibration velocity of underground pipelines are realized. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the underground pipeline vibration velocity measurement device 800 to complete the above-mentioned 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 the readable storage medium described below and the method for measuring the vibration velocity of an underground pipeline described above can be referred to in correspondence with each other.

A readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by a processor, the steps of the method for measuring the vibration velocity of an underground pipeline in the above method embodiment are realized.

Specifically, the readable storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like that can store program codes. readable storage media.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within 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.

Images