CN114320468A - Roadway surrounding rock mine pressure detection device and method - Google Patents
Roadway surrounding rock mine pressure detection device and method Download PDFInfo
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- CN114320468A CN114320468A CN202111588051.7A CN202111588051A CN114320468A CN 114320468 A CN114320468 A CN 114320468A CN 202111588051 A CN202111588051 A CN 202111588051A CN 114320468 A CN114320468 A CN 114320468A
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Abstract
The invention provides a device and a method for detecting mine pressure of surrounding rocks of a roadway, which relate to the technical field of roadway construction, the device for detecting the mine pressure of the surrounding rocks of the roadway comprises a connecting component, the connecting component is suitable for being placed in the surrounding rocks of the roadway, by connecting the upper stress sensor, the lower stress sensor, the front stress sensor and the rear stress sensor on the connecting component, so as to respectively monitor the upper stress and the lower stress of the surrounding rock of the roadway and the front stress and the rear stress along the length direction of the roadway, further monitoring the surrounding rock stress which can affect the deformation of the surrounding rock of the roadway in real time, and in addition, monitoring the impact vibration condition borne by the surrounding rock of the roadway in real time by arranging a vibration sensor on the connecting component, the monitoring of surrounding rock stress and impact vibration is simultaneously realized on one device, and the problem that the existing monitoring mode is difficult to carry out unified real-time monitoring on a plurality of variables such as the surrounding rock stress and the impact vibration in the same time point is solved.
Description
Technical Field
The invention relates to the technical field of roadway construction, in particular to a roadway surrounding rock mine pressure detection device and method.
Background
Roadways are various passages drilled between the earth's surface and the coal body for carrying out works such as ore transportation, ventilation, drainage, pedestrians, etc. The roadway is difficult to avoid the mining influence of a stope face in the using process, and because the mining of the stope face forms high stress concentration areas on two sides of roadway surrounding rock, when k gamma H values (wherein k is a stress concentration coefficient, gamma is the volume weight of a roof rock stratum and kg/m is the volume weight of a roof rock stratum) corresponding to the two sides of the roadway surrounding rock3(ii) a H is the buried depth, m) when exceeding the roof rock stratum and bearing the limit, the roof can fracture and then produce impact vibration, and high stress concentration and impact vibration act on the tunnel country rock and lead to the tunnel to produce serious deformation and destruction.
The deformation and damage of the surrounding rock of the roadway is a dynamic progressive deformation and damage process which has a rule and can be found. Therefore, in order to predict the development of the surrounding rock mine pressure of the roadway and guide the subsequent surrounding rock stability control technology, people can actively observe the stress, impact vibration and displacement of the surrounding rock of the roadway.
For monitoring the surface displacement of the surrounding rock of the roadway, more than the tape is adopted for manual monitoring, the tape is used widely due to the advantage of convenience and easiness in use, and the monitored data error is usually large.
For monitoring related variables such as tunnel surrounding rock stress and impact vibration, people usually spend huge economic cost to manufacture huge data acquisition systems, large and heavy equipment is installed on the tunnel surrounding rock for monitoring by means of a production power supply of a coal mine, a power supply box and other various equipment are moved in real time along with the progress of work, a data wire with the length of hundreds of meters is exposed on the tunnel surrounding rock and is easily damaged by underground production and construction, the production is influenced, and the normal operation of data acquisition work is also influenced.
In conclusion, for the development work of the roadway surrounding rock mine pressure, the monitored quantity is roadway surrounding rock displacement, impact vibration, surrounding rock stress and the like, while the existing monitoring work of the roadway surrounding rock displacement, impact vibration and surrounding rock stress usually adopts different monitoring devices and different methods for monitoring, and the variables are difficult to be monitored uniformly and in real time at the same time point, so that a roadway surrounding rock mine pressure detection device which can uniformly monitor multiple parameters in real time, has a simple structure, is self-supplied with power, is low in cost, is portable and easy to carry, and can independently monitor the roadway surrounding rock in a certain area is urgently needed.
Disclosure of Invention
The invention provides a roadway surrounding rock mine pressure detection device and method, and aims to solve the problem that in the prior art, different monitoring devices are usually adopted and different methods are used for monitoring aiming at monitoring roadway surrounding rock displacement, impact vibration and surrounding rock stress, and the variables are difficult to be monitored in a unified real-time manner at the same time point.
The first aspect of the invention provides a roadway surrounding rock mine pressure detection device, which comprises:
coupling assembling, coupling assembling is suitable for inside putting into tunnel country rock, and is connected with vibrations sensor, last stress transducer, lower stress transducer, front stress transducer and rear stress transducer, go up stress transducer with lower stress transducer connect respectively in coupling assembling's upper end and lower extreme, front stress transducer with rear stress transducer's the direction of arranging is along the length direction in tunnel, front stress transducer and rear stress transducer are located respectively coupling assembling's relative both sides.
Further, still include:
the data analysis and acquisition instrument is suitable for being connected with the surface of the surrounding rock of the roadway and is in signal connection with the vibration sensor, the upper stress sensor, the lower stress sensor, the front stress sensor and the rear stress sensor.
Further, still include:
the distance measuring device is arranged on the data analysis and acquisition instrument and is in signal connection with the data analysis and acquisition instrument.
Furthermore, the data analysis and acquisition instrument is provided with a data analysis and acquisition instrument switch, a vibration button, a stress button and an information display screen.
Further, the data analysis and acquisition instrument is suitable for being connected with the roadway surrounding rock anchor net.
Furthermore, a power supply is arranged in the data analysis and acquisition instrument and used for supplying power to the data analysis and acquisition instrument, the upper stress sensor, the lower stress sensor, the front stress sensor and the rear stress sensor.
Further, still include:
and one end of the data wire is electrically connected with the data analysis and acquisition instrument, and the other end of the data wire is suitable for being electrically connected with the vibration sensor, the upper stress sensor, the lower stress sensor, the front stress sensor and the rear stress sensor.
Further, still include:
six electrical connectors, six of which are adapted to be electrically connected to the upper stress sensor, the lower stress sensor, the front stress sensor, the rear stress sensor, the shock sensor and the data conductor, respectively;
coupling assembling is equipped with first through-hole, second through-hole and third through-hole, first through-hole the second through-hole with two liang of perpendicular intersections of third through-hole form the middle part and be suitable for the holding six-way number electricity space of connecting, first through-hole extending direction is along vertical direction, the upper end and the lower extreme of first through-hole are suitable for the cover respectively to establish go up stress sensor with stress sensor down, second through-hole extending direction is along the length direction in tunnel, the both ends of second through-hole are suitable for the cover respectively to establish preceding stress sensor and back stress sensor, the length direction in third through-hole extending direction perpendicular to tunnel, the third through-hole is close to the one end of data analysis collection appearance is suitable for connecting the data wire, the other end of third through-hole is suitable for the cover to establish the shock sensor.
Further, the connection assembly includes:
the plane end of the first semi-sphere is provided with a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are perpendicularly crossed, the crossed position is located at the sphere center of the first semi-sphere, the first semi-sphere is provided with a fourth through hole, and the extending direction of the fourth through hole is along the axial direction of the first semi-sphere and is perpendicular to the plane end of the first semi-sphere;
the plane end of the second hemisphere is provided with a third arc-shaped groove and a fourth arc-shaped groove, the third arc-shaped groove and the fourth arc-shaped groove are perpendicularly crossed, the crossed position is located at the sphere center of the second hemisphere, the second hemisphere is provided with a fifth through hole, and the extending direction of the fifth through hole is along the axial direction of the second hemisphere and is perpendicular to the plane end of the second hemisphere;
by apposing the first hemisphere and the second hemisphere, such that: the first arc-shaped groove and the third arc-shaped groove are oppositely combined to form the first through hole, the second arc-shaped groove and the fourth arc-shaped groove are oppositely combined to form the second through hole, and the fourth through hole and the fifth through hole are oppositely combined to form the third through hole.
The second aspect of the invention provides a roadway surrounding rock mine pressure detection method, which comprises the following steps:
the roadway surrounding rock mine pressure detection device provided by the first aspect of the invention is used for detecting roadway surrounding rock mine pressure.
The roadway surrounding rock mine pressure detection device provided by the invention has the beneficial effects that:
on the surrounding rock of the roadway, the stress of the surrounding rock in the upper, lower, front and rear directions can directly influence the deformation condition of the surrounding rock of the roadway, the connecting component is arranged in the surrounding rock of the roadway, by connecting the upper stress sensor, the lower stress sensor, the front stress sensor and the rear stress sensor on the connecting component, so as to respectively monitor the upper stress and the lower stress of the surrounding rock of the roadway and the front stress and the rear stress along the length direction of the roadway, further monitoring the surrounding rock stress which can affect the deformation of the surrounding rock of the roadway in real time, and in addition, monitoring the impact vibration condition borne by the surrounding rock of the roadway in real time by arranging a vibration sensor on the connecting component, the monitoring of surrounding rock stress and impact vibration is simultaneously realized on one device, and the problem that the existing monitoring mode is difficult to carry out unified real-time monitoring on a plurality of variables such as the surrounding rock stress and the impact vibration in the same time point is solved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a recovery roadway surrounding rock under the action of a passive load and a static load;
FIG. 2 is a schematic overall structure diagram of the roadway surrounding rock mine pressure detection device provided by the invention;
fig. 3 is one of schematic structural diagrams of a first hemisphere of the roadway surrounding rock mine pressure detection device provided by the invention;
fig. 4 is a second schematic structural diagram of a first hemisphere of the device for detecting pressure of surrounding rock in a roadway according to the present invention;
fig. 5 is a schematic structural diagram of a second hemisphere of the roadway surrounding rock mine pressure detection device provided by the invention;
FIG. 6 is a schematic structural diagram of a data analysis and acquisition instrument of the roadway surrounding rock mine pressure detection device provided by the invention;
fig. 7 is a schematic structural diagram of a data wire of the roadway surrounding rock mine pressure detection device provided by the invention;
fig. 8 is a schematic structural diagram of a six-way electrical connector of the roadway surrounding rock mine pressure detection device provided by the invention;
fig. 9 is a schematic view of field installation and use of the roadway surrounding rock mine pressure detection device provided by the invention.
1. A connecting assembly; 11. a first hemisphere; 111. a first arc-shaped groove; 112. a second arc-shaped groove; 113. a fourth via hole; 12. a second hemisphere; 121. a third arc-shaped groove; 122. a fourth arc-shaped groove; 123. a fifth through hole; 2. a shock sensor; 31. an upper stress sensor; 32. a lower stress sensor; 33. a front stress sensor; 34. a post-stress sensor; 4. a data analysis and acquisition instrument; 41. a data analysis and acquisition instrument switch; 42. a vibration button; 43. a stress button; 44. an information display screen; 45. a data analyzer connector; 46. a displacement button; 5. a distance measuring device; 6. a data conductor; 61. a first joint; 62. a second joint; 7. six-way electric connector; 71. a data conductor connection; 81. a first through hole; 82. a second through hole; 83. a third via.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, a feature "on" or "under" a second feature may be in direct contact with the second feature or in indirect contact with the second feature via intermediate media. Also, a feature "above," "over," and "on" a second feature may be directly or diagonally above the second feature, or may simply mean that the feature is at a higher level than the second feature. A feature "under", "below" and "beneath" a second feature may be directly or obliquely under the second feature or may simply mean that the feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the terms "one embodiment," "an aspect embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Roadways are various passages drilled between the earth's surface and the coal body for carrying out works such as ore transportation, ventilation, drainage, pedestrians, etc. The roadway is difficult to avoid the mining influence of the stope face in the using process, please refer to fig. 1, because the mining of the stope face forms high stress concentration areas at two sides of the roadway surrounding rock, the high stress concentration areas at two sides respectively correspond to k1Gamma H values and k2Gamma H value (wherein, k1And k2Is the stress concentration coefficient; gamma is the volume weight of the top rock stratum in kg/m3(ii) a H is the buried depth, m), when k1Gamma H values and k2When the gamma H value exceeds the bearing limit of a top plate rock stratum, the top plate can be broken to further generate impact vibration, and the high stress concentration and the impact vibration act on surrounding rocks of the roadway to cause serious deformation and damage of the roadway.
The deformation and damage of the surrounding rock of the roadway is a dynamic progressive deformation and damage process which has a rule and can be found. Therefore, in order to predict the development of the surrounding rock mine pressure of the roadway and guide the subsequent surrounding rock stability control technology, people can actively observe the stress, impact vibration and displacement of the surrounding rock of the roadway.
For the monitoring of roadway surrounding rock surface displacement, more adopt the tape to carry out manual monitoring, the mode of carrying out manual monitoring through the tape is used widely because of having convenient easy-to-use advantage, but the data error of monitoring is often bigger than normal.
In addition, for monitoring related variables such as tunnel surrounding rock stress and impact vibration, people usually spend huge economic cost to manufacture huge data acquisition systems, and by means of a production power supply of a coal mine, large and heavy equipment is installed on the tunnel surrounding rock for monitoring.
In conclusion, it can be seen that, for the work of appearing of tunnel surrounding rock mine pressure, the volume that needs to monitor is tunnel surrounding rock displacement, impact vibration and surrounding rock stress etc., and the current work of monitoring tunnel surrounding rock displacement, impact vibration and surrounding rock stress, adopt different monitoring facilities and monitor with different methods usually, it is difficult to unify real-time supervision to these variables in same time point, consequently, the urgent need for one kind can be in real time to the unified monitoring of many parameters, moreover, the steam generator is simple in structure, the power is self-supporting, the low price, light easy-to-carry and can independently monitor the tunnel surrounding rock mine pressure detection device of a certain regional tunnel surrounding rock, for this:
in a first aspect, the invention provides a roadway surrounding rock mine pressure detection device, which mainly comprises a connecting assembly 1, a vibration sensor 2, an upper stress sensor 31, a lower stress sensor 32, a front stress sensor 33 and a rear stress sensor 34:
with reference to fig. 2 to 9, the connecting assembly 1 is suitable for being placed inside surrounding rock of a roadway, the vibration sensor 2, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34 are connected to the connecting assembly 1, the upper stress sensor 31 and the lower stress sensor 32 are respectively connected to the upper end and the lower end of the connecting assembly 1, the arrangement direction of the front stress sensor 33 and the rear stress sensor 34 is along the length direction of the roadway, and the front stress sensor 33 and the rear stress sensor 34 are respectively located on two opposite sides of the connecting assembly 1.
In this embodiment, on the surrounding rock of the roadway, the surrounding rock stresses in the upper, lower, front and rear directions directly affect the deformation of the surrounding rock of the roadway, understandably, the front and rear directions are along the length direction of the roadway, and based on this practical situation, the present embodiment monitors the upper stress, the lower stress, the front stress and the rear stress of the surrounding rock of the roadway in the length direction of the roadway by placing the connecting assembly 1 inside the surrounding rock of the roadway, and connecting the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34 on the connecting assembly 1, so as to monitor the upper stress, the lower stress, the front stress and the rear stress of the surrounding rock in the length direction of the roadway, respectively, and further monitor the surrounding rock stress which can affect the deformation of the surrounding rock in real time, and further, by arranging the vibration sensor 2 on the connecting assembly 1, so as to monitor the impact vibration condition borne by the surrounding rock of the roadway in real time, and monitor the surrounding rock stress and impact vibration simultaneously on one device, the problem that the existing monitoring mode is difficult to carry out unified real-time monitoring on a plurality of variables such as surrounding rock stress, impact vibration and the like in the same time point is solved.
Referring to fig. 6, according to an embodiment of the present invention, the method further includes:
the data analysis and acquisition instrument 4 is suitable for being connected with the surface of the surrounding rock of the roadway, and the data analysis and acquisition instrument 4 is in signal connection with the vibration sensor 2, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34.
Understandably, the data analysis and acquisition instrument 4 is provided with a controller (not shown in the figure), the controller is used for realizing functions such as data receiving, data storage and data analysis, the controller can be arranged in the data analysis and acquisition instrument 4, and can also be arranged outside the data analysis and acquisition instrument 4, preferably, in the embodiment, in order to avoid the controller from being damaged due to roadway construction, the controller is arranged in the data analysis and acquisition instrument 4, and the controller is in signal connection with the vibration sensor 2, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34.
Specifically, in the present embodiment, the data analysis and acquisition instrument 4 is provided with a data analysis and acquisition instrument switch 41, a vibration button 42, a stress button 43, and an information display screen 44, the data analysis and acquisition instrument switch 41 is used to turn on or off the data analysis and acquisition instrument 4, the vibration button 42 is used to control the on or off of the operation of the vibration sensor 2, the stress button 43 is used to control the on or off of the operation of the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33, and the rear stress sensor 34, and the information display screen 44 is used to display the data measured by the vibration sensor 2, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33, and the rear stress sensor 34.
According to an embodiment of the present invention, further comprising:
the distance measuring device 5 and the distance measuring device 5 are arranged on the data analysis and acquisition instrument 4, and the distance measuring device 5 is in signal connection with the data analysis and acquisition instrument 4.
In this embodiment, range unit 5 carries out real-time supervision through width of roadway change condition or the high change condition of roadway to the realization is to the displacement change condition on roadway surrounding rock surface, and is visible, and this embodiment can be unified measurement to roadway surrounding rock displacement, impact vibration and surrounding rock stress on same time point.
Specifically, range unit 5 includes laser rangefinder sensor, laser rangefinder sensor's measuring end is towards opposite tunnel country rock, understandably, if data analysis and acquisition appearance 4 connects in tunnel left side country rock, then laser rangefinder sensor's measuring end is towards tunnel right side country rock, with the distance of measuring tunnel right side country rock and tunnel left side country rock, the real-time supervision to the tunnel width variation condition is realized, if data analysis and acquisition appearance 4 connects in tunnel roof country rock, then laser rangefinder sensor's measuring end is towards tunnel bottom plate country rock, with the distance of measuring tunnel roof country rock and tunnel bottom plate country rock, the realization is to the real-time supervision of tunnel height variation condition.
More specifically, the data analysis collector 4 is further provided with a displacement button 46, and the displacement button 46 is used for turning on or off the operation of the distance measuring device 5.
According to one embodiment of the invention, the data analysis collector 4 is adapted to be connected to the roadway surrounding rock anchor net.
In this embodiment, compare in hang data analysis and acquisition appearance 4 or connect in the mode of tunnel country rock surface spraying layer, with data analysis and acquisition appearance 4 and tunnel country rock anchor net lug connection, can improve data analysis and acquisition appearance 4's fixed effect, in the tunnel work progress, can avoid the problem that data analysis and acquisition appearance 4 dropped easily.
According to an embodiment of the present invention, the data analysis and acquisition instrument 4 is provided with a power supply inside, and the power supply is used for supplying power to the data analysis and acquisition instrument 4, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34.
In particular, the power supply is also used to power the shock sensor 2.
In this embodiment, the power supply built in the data analysis and acquisition instrument 4 supplies power to the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33, the rear stress sensor 34 and the vibration sensor 2, and the power supply for coal mine is not needed to supply power to each sensor, so that the problem that various devices such as a power box need to be moved in real time along with the advance of work is avoided.
In the present embodiment, a specific embodiment of the power supply built in the data analysis/acquisition instrument 4 can refer to a configuration of a conventional data analysis/acquisition device including a self-supplied power supply, and the present embodiment does not limit the built-in power supply and the mounting manner of the built-in power supply, and it is understood that the power supply built in the data analysis/acquisition instrument 4 transmits power to each sensor through a wire capable of transmitting electric power.
Referring to fig. 7 and 9, according to an embodiment of the present invention, the method further includes:
and one end of the data wire 6 is electrically connected with the data analysis and acquisition instrument 4, and the other end of the data wire 6 is suitable for being electrically connected with the vibration sensor 2, the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33 and the rear stress sensor 34.
Through setting up data wire 6 to realize the electric connection between each sensor and data analysis collection appearance 4, transmission performance is stable, and the signal of transmission includes but not limited to data signal.
Referring to fig. 8, according to an embodiment of the present invention, the method further includes:
six-way electric connector 7, six connectors of six-way electric connector 7 are respectively suitable for being electrically connected with upper stress sensor 31, lower stress sensor 32, front stress sensor 33, rear stress sensor 34, vibration sensor 2 and data conductor 6;
referring to fig. 2-5, the connecting assembly 1 is provided with a first through hole 81, a second through hole 82 and a third through hole 83, the first through hole 81, the second through hole 82 and the third through hole 83 are vertically crossed in pairs to form a space suitable for accommodating the six-way electrical connector 7 in the middle, the extending direction of the first through hole 81 is along the vertical direction, the upper end and the lower end of the first through hole 81 are respectively suitable for being sleeved with the upper stress sensor 31 and the lower stress sensor 32, the extending direction of the second through hole 82 is along the length direction of the roadway, the two ends of the second through hole 82 are respectively suitable for being sleeved with the front stress sensor 33 and the rear stress sensor 34, the extending direction of the third through hole 83 is perpendicular to the length direction of the roadway, one end of the third through hole 83 close to the data analysis and acquisition instrument 4 is suitable for being connected with the data wire 6, and the other end of the third through hole 83 is suitable for being sleeved with the vibration sensor 2.
In this embodiment, by providing the six-way electrical connector 7, to realize the electrical connection between the upper stress sensor 31, the lower stress sensor 32, the front stress sensor 33, the rear stress sensor 34, the vibration sensor 2 and the data conductor 6 respectively located in the six directions of the six-way electrical connector 7, the six-way electrical connector 7 is accommodated through the cavity formed by vertically crossing the first through hole 81, the second through hole 82 and the third through hole 83 two by two, the six-way electrical connector 7 is fixed, and each sensor is fixed by passing each sensor through the inside of the connection assembly 1, the connection assembly 1 of this embodiment can play a role in protecting the ends of the six-way electrical connector 7, each sensor and the data conductor 6 which are internally arranged in the connection assembly 1.
Specifically, for convenience of description, the connector of the six-way electrical connector 7 suitable for connecting the data conductor 6 is the data conductor connector 71, the connector of the data analysis and acquisition instrument 4 suitable for connecting the data conductor 6 is the data analyzer connector 45, the two ends of the data conductor 6 are respectively the first connector 61 and the second connector 62, the first connector 61 is used for connecting the data conductor connector 71, and the second connector 62 is used for connecting the data analyzer connector 45.
According to an embodiment of the present invention, referring to fig. 2 to 5, a connecting assembly 1 includes:
the structure comprises a first semi-sphere 11, wherein a first arc-shaped groove 111 and a second arc-shaped groove 112 are formed in the plane end of the first semi-sphere 11, the first arc-shaped groove 111 and the second arc-shaped groove 112 are perpendicularly crossed, the crossed position is located at the sphere center position of the first semi-sphere 11, the first semi-sphere 11 is provided with a fourth through hole 113, and the extending direction of the fourth through hole 113 is along the axial direction of the first semi-sphere 11 and is perpendicular to the plane end of the first semi-sphere 11;
the second hemisphere 12 is provided with a third arc-shaped groove 121 and a fourth arc-shaped groove 122 at the plane end of the second hemisphere 12, the third arc-shaped groove 121 and the fourth arc-shaped groove 122 are perpendicularly crossed, the crossed position is located at the sphere center position of the second hemisphere 12, the second hemisphere 12 is provided with a fifth through hole 123, and the extending direction of the fifth through hole 123 is along the axial direction of the second hemisphere 12 and is perpendicular to the plane end of the second hemisphere 12;
by bringing the first hemisphere 11 and the second hemisphere 12 into apposition, so that: the first arc-shaped groove 111 and the third arc-shaped groove 121 are combined to form a first through hole 81, the second arc-shaped groove 112 and the fourth arc-shaped groove 122 are combined to form a second through hole 82, and the fourth through hole 113 and the fifth through hole 123 are combined to form a third through hole 83.
Understandably, the first hemisphere 11 and the second hemisphere 12 are combined to form a sphere.
In this embodiment, through setting up first hemisphere 11 and second hemisphere 12 of matched with, the accessible is on first hemisphere 11 and second hemisphere 12 under the split state, place six-way number electricity joint 7, go up stress transducer 31, stress transducer 32 down, preceding stress transducer 33, back stress transducer 34, shock sensor 2 and data wire 6 respectively in the arc recess or the through-hole of matching, the mode of connecting first hemisphere 11 and second hemisphere 12 involutory is in order to form wholly at last, realize six-way number electricity joint 7, data wire 6 and each sensor and coupling assembling 1 between the detachable connection, the mounting means is simple.
In addition, after drilling holes in the surrounding rock of the roadway, the end surfaces of the formed drill holes are generally circular surfaces, the connecting assembly 1 is made into a spherical structure, and the connecting assembly 1 with the spherical structure is more suitable for enabling the connecting assembly 1 to be placed in the drill holes and fixed.
In a second aspect, the invention provides a roadway surrounding rock mine pressure detection method, which comprises the following steps:
the roadway surrounding rock mine pressure detection device provided by the first aspect of the invention is used for detecting roadway surrounding rock mine pressure.
Specifically, the method comprises the following steps:
firstly, selecting a position where a measuring point is to be arranged in the surrounding rock of the roadway, and marking the middle parts of a top plate, a bottom plate, a left upper and a right upper at the position;
secondly, drilling holes at the marked positions, wherein the drilling depth is self-determined according to the positions of the monitored surrounding rocks;
then, the six-way electrical connector 7, each stress sensor and the vibration sensor 2 are assembled in the connecting component 1 comprising the first hemisphere 11 and the second hemisphere 12, the first hemisphere 11 and the second hemisphere 12 are oppositely combined to form a sphere structure, and for convenience of description, the whole sphere structure connected with the six-way electrical connector 7, each stress sensor and the vibration sensor 2 is named as a stress vibration sphere;
next, the data wire connection 71 is connected to the first connection 61 of the data wire 6 through the third through hole 83;
furthermore, an appropriate amount of anchoring agent is laid on the anchor rod, a stress vibration ball is fed into the bottom of the drilled hole through the anchor rod, and then the drilled hole is closed by the anchoring agent.
Secondly, a second connector 62 of the data wire 6 is connected to a connector 45 of the data analyzer, and then the connector 45 of the data analyzer is fixed on the anchor net of the surrounding rock of the roadway;
then, referring to fig. 9, the steps are repeated to complete the installation work of the roadway surrounding rock mine pressure detection device provided by the embodiment relative to the top plate, the bottom plate, the left upper and the right upper, specifically, four stress vibration balls are provided in the embodiment, each stress vibration ball is correspondingly provided with one data analysis and acquisition instrument 4 and one data lead 6, and the four stress vibration balls are respectively placed inside the top plate, the bottom plate, the left upper and the right upper;
and finally, turning on all switches of the data analysis and acquisition instrument 4, starting to enter a working state, and completing the installation work of the roadway surrounding rock mine pressure detection device for detecting the roadway surrounding rock mine pressure display.
It should be noted that, in this embodiment, an entirety composed of each stress-vibrating ball, the data analysis and acquisition instrument, and the data line may be regarded as an embodiment, and a plurality of the entireties may also be regarded as an embodiment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a tunnel country rock mine pressure detection device which characterized in that includes:
the connecting assembly (1) is suitable for being placed inside surrounding rocks of a roadway, and is connected with a vibration sensor (2), an upper stress sensor (31), a lower stress sensor (32), a front stress sensor (33) and a rear stress sensor (34);
the upper stress sensor (31) and the lower stress sensor (32) are respectively connected to the upper end and the lower end of the connecting component (1);
the arrangement direction of the front stress sensor (33) and the rear stress sensor (34) is along the length direction of the roadway;
the front stress sensor (33) and the rear stress sensor (34) are respectively positioned at two opposite sides of the connecting component (1).
2. The apparatus of claim 1, further comprising:
data analysis acquisition appearance (4), data analysis acquisition appearance (4) are suitable for connecting tunnel country rock surface, data analysis acquisition appearance (4) and shock sensor (2), go up stress sensor (31), stress sensor (32), preceding stress sensor (33) and back stress sensor (34) signal connection down.
3. The apparatus of claim 2, further comprising:
distance measuring device (5), distance measuring device (5) set up on data analysis gathers appearance (4), distance measuring device (5) with data analysis gathers appearance (4) signal connection.
4. The roadway surrounding rock mine pressure detection device according to claim 3, wherein the data analysis collector (4) is provided with a data analysis collector switch (41), a vibration button (42), a stress button (43) and an information display screen (44).
5. The roadway surrounding rock mine pressure detection device according to claim 3, wherein the data analysis and acquisition instrument (4) is adapted to be connected with a roadway surrounding rock anchor net.
6. The device for detecting the pressure of the surrounding rock mine in the roadway according to claim 3, wherein a power supply is arranged in the data analysis and acquisition instrument (4), and the power supply is used for supplying power to the data analysis and acquisition instrument (4), the upper stress sensor (31), the lower stress sensor (32), the front stress sensor (33) and the rear stress sensor (34).
7. The roadway surrounding rock mine pressure detection device according to any one of claims 2 to 6, further comprising:
the device comprises a data wire (6), one end of the data wire (6) is electrically connected with the data analysis and acquisition instrument (4), and the other end of the data wire (6) is suitable for being electrically connected with the vibration sensor (2), the upper stress sensor (31), the lower stress sensor (32), the front stress sensor (33) and the rear stress sensor (34).
8. The apparatus of claim 7, further comprising:
-a six-way electrical connector (7), six connectors of said six-way electrical connector (7) being adapted to be electrically connected to said upper strain sensor (31), said lower strain sensor (32), said front strain sensor (33), said rear strain sensor (34), said shock sensor (2) and said data conductor (6), respectively;
the connecting assembly (1) is provided with a first through hole (81), a second through hole (82) and a third through hole (83), the first through hole (81), the second through hole (82) and the third through hole (83) are vertically crossed in pairs to form a space with a middle part suitable for accommodating the six-way electric connector (7), the extending direction of the first through hole (81) is along the vertical direction, the upper end and the lower end of the first through hole (81) are respectively suitable for being sleeved with the upper stress sensor (31) and the lower stress sensor (32), the extending direction of the second through hole (82) is along the length direction of a roadway, the two ends of the second through hole (82) are respectively suitable for being sleeved with the front stress sensor (33) and the rear stress sensor (34), the extending direction of the third through hole (83) is perpendicular to the length direction of the roadway, one end, close to the data analysis and acquisition instrument (4), of the third through hole (83) is suitable for being connected with the data conductor (6), the other end of the third through hole (83) is suitable for sleeving the vibration sensor (2).
9. The roadway surrounding rock mine pressure detection device according to claim 8, wherein the connection assembly (1) comprises:
the first semi-sphere (11), a first arc-shaped groove (111) and a second arc-shaped groove (112) are arranged at the plane end of the first semi-sphere (11), the first arc-shaped groove (111) and the second arc-shaped groove (112) are perpendicularly crossed, the crossed position is located at the sphere center position of the first semi-sphere (11), the first semi-sphere (11) is provided with a fourth through hole (113), and the extending direction of the fourth through hole (113) is along the axial direction of the first semi-sphere (11) and is perpendicular to the plane end of the first semi-sphere (11);
the structure comprises a second hemisphere (12), wherein a third arc-shaped groove (121) and a fourth arc-shaped groove (122) are formed in the plane end of the second hemisphere (12), the third arc-shaped groove (121) and the fourth arc-shaped groove (122) are perpendicularly crossed, the crossed position is located at the sphere center of the second hemisphere (12), a fifth through hole (123) is formed in the second hemisphere (12), and the extending direction of the fifth through hole (123) is along the axial direction of the second hemisphere (12) and perpendicular to the plane end of the second hemisphere (12);
by involuting the first hemisphere (11) and the second hemisphere (12) so that: the first arc-shaped groove (111) and the third arc-shaped groove (121) are combined to form the first through hole (81), the second arc-shaped groove (112) and the fourth arc-shaped groove (122) are combined to form the second through hole (82), and the fourth through hole (113) and the fifth through hole (123) are butted to form the third through hole (83).
10. A roadway surrounding rock mine pressure detection method is characterized by comprising the following steps:
the roadway surrounding rock mine pressure detection device of any one of claims 1-9 is used for detecting roadway surrounding rock mine pressure.
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| CN202111588051.7A CN114320468B (en) | 2021-12-23 | 2021-12-23 | Roadway surrounding rock ore pressure detection device and method |
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| WO2019245146A1 (en) * | 2018-06-22 | 2019-12-26 | 코탐(주) | Ict-based system for monitoring, in real time, displacements in mine |
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