A device and method for installing a series-type rock mass three-dimensional disturbance stress sensor

Abstract

The present invention provides an installation device and method for a serial three-dimensional rock mass disturbance stress sensor. The device is composed of a head end unit, a plurality of repeating units and a tail end unit connected in sequence. The present invention can accurately install a plurality of three-dimensional disturbance stress sensors in a borehole without adopting full-hole grouting bonding, thereby realizing the installation of a one-hole multi-point distributed rock mass three-dimensional disturbance stress sensor. The head end trigger mechanism triggers the glue in the top glue cylinder to bond the three-dimensional disturbance stress sensor in the first repeating unit, and the first trigger mechanism triggers the glue in a corresponding first glue cylinder to bond the three-dimensional disturbance stress sensor in the next repeating unit, so as to ensure that the three-dimensional disturbance stress sensor can be well coupled with the rock mass, improve the convenience and correctness of the installation of the three-dimensional disturbance stress sensor, and realize the successful monitoring of the one-hole multi-point distributed rock mass disturbance stress.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical engineering ground stress testing, and in particular relates to an installation device and a method for a series-type rock mass three-dimensional disturbance stress sensor. Background Art

[0002] Stress is the fundamental force that causes deformation and destruction of deep rock masses. It is also a necessary prerequisite for the scientific prediction, early warning and decision-making of dynamic disasters such as deep engineering mining, excavation design, surrounding rock stability analysis and rock burst.

[0003] The stress state of rock mass mainly consists of two parts: one is the original rock stress that existed in the rock mass before human engineering activities occurred, also known as initial stress; the other is the additional stress generated on the basis of the original rock stress after mining activities, which is called disturbance stress. There are many mature testing methods and equipment for original rock stress measurement, and they have been widely used and verified. Monitoring and analyzing the change law of disturbance stress during surrounding rock excavation is an important way to understand the instability process of engineering rock mass. However, due to the lack of reliable technical equipment for disturbance stress monitoring, real-time measurement of rock disturbance stress is very difficult. The limitations of existing disturbance stress monitoring equipment mainly include the following two aspects: First, multi-point measurement is difficult. Most of the time, only one sensor can be arranged in a borehole. For example, when using CSIRO hollow package sensor for testing, it is difficult to achieve multi-point serial measurement in one hole; second, installation is difficult. Even if the sensor is pushed into the hole in series, the sensor can only be fixed in the hole by full-hole grouting. This method is not only cumbersome to install, but also cannot guarantee the density of the grouting in the hole. In particular, it is difficult to ensure good coupling between the sensor and the rock mass, resulting in large errors in the stress monitoring results.

[0004] Therefore, how to provide an installation method for a series of three-dimensional rock disturbance stress sensors, accurately arrange multiple three-dimensional disturbance stress sensors in a borehole, and ensure that the three-dimensional disturbance stress sensors are well coupled with the rock mass to accurately monitor the disturbance stress of the rock mass is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a device and method for installing a series-connected three-dimensional rock mass disturbance stress sensor, so as to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the first aspect of the present invention provides an installation device for a series-type three-dimensional disturbance stress sensor for rock mass, the installation device being composed of a head end unit, a plurality of repeating units and a tail end unit connected in sequence; the head end unit comprising: a top rubber cylinder, a head end trigger mechanism being arranged inside the top rubber cylinder, the head end trigger mechanism being used to control the outflow of the glue in the top rubber cylinder; a head end assembly part, one end of which is fixedly connected to the bottom end of the top rubber cylinder, and the other end of the head end assembly part is fixedly connected to the repeating unit; each of the repeating units comprises: a three-dimensional disturbance stress sensor; a first assembly part, one end of which is fixedly connected to the other end of the three-dimensional disturbance stress sensor; a first hole sealer, arranged in the middle of the first assembly part, for sealing the glue; a first push rod, one end of which is fixedly connected to the other end of the first assembly part; a second assembly part, one end of which is fixedly connected to the other end of the first push rod; a first rubber The first rubber cylinder is provided with a first trigger mechanism inside, and the first trigger mechanism is used to control the outflow of the rubber liquid in the first rubber cylinder, and the top of the first rubber cylinder is fixedly connected to the other end of the second assembly part; the third assembly part, one end of which is fixedly connected to the bottom end of the first rubber cylinder; wherein, one end of the three-dimensional perturbation stress sensor of the first repeating unit among several repeating units is fixedly connected to the other end of the head end assembly part, the other end of the third assembly part of the first repeating unit is fixedly connected to one end of the three-dimensional perturbation stress sensor of the next repeating unit, and the other end of the three-dimensional perturbation stress sensor of the last repeating unit is fixedly connected to the tail end unit; the tail end unit comprises: a tail end assembly part, one end of which is fixedly connected to the other end of the three-dimensional perturbation stress sensor of the last repeating unit; and a tail end push rod, one end of which is detachably connected to the other end of the tail end assembly part.

[0007] In the first aspect, the head-end trigger mechanism includes: a micromotor, which is fixed inside the top rubber cylinder; a spring, one end of which is fixed on the micromotor; a vertical rod, the top end of which is fixedly connected to the other end of the spring; and a stopper, which is fixed to the bottom end of the vertical rod and is used to prevent the glue in the top rubber cylinder from flowing out.

[0008] In the first aspect, the first hole sealer includes: a rubber airbag, which is sleeved on the middle side wall of the first assembly part; a first stainless steel cable tie, which is used to fix one end of the rubber airbag to the first assembly part; and a second stainless steel cable tie, which is used to fix the other end of the rubber airbag to the first assembly part.

[0009] In the first aspect, the head end unit further comprises a stainless steel conical hole cover, and the stainless steel conical hole cover is detachably connected to the top end of the top rubber cylinder.

[0010] In the first aspect, the top rubber cylinder and the first rubber cylinder are both used to store glue liquid; two head glue inlets are evenly spaced on the upper part of the top rubber cylinder, and four head glue outlets are evenly spaced on the lower part of the top rubber cylinder; two first glue inlets are evenly spaced on the upper part of the first rubber cylinder, and four first glue outlets are evenly spaced on the lower part of the first rubber cylinder.

[0011] In the first aspect, the installation device also includes a trigger power supply, which is connected to the first trigger mechanism and the head end trigger mechanism in each of the repeating units in sequence through a cable; the trigger power supply includes an indicator light and a switch, the indicator light is used to indicate whether each of the first trigger mechanism and the head end trigger mechanism is successfully triggered, and the switch is used to control the power on of each of the first trigger mechanism and the head end trigger mechanism.

[0012] In the first aspect, the tail end assembly includes: a connecting piece, one end of the connecting piece is fixedly connected to the other end of the three-dimensional disturbance stress sensor of the last repeating unit, and the other end of the connecting piece is detachably connected to one end of the tail end push rod; a tail end hole sealer, the tail end hole sealer is sleeved on the middle side wall of the connecting piece, and one end of the tail end hole sealer is fixedly connected to the connecting piece by a first cable tie, and the other end of the tail end hole sealer is fixedly connected to the connecting piece by a second cable tie.

[0013] In the first aspect, the installation device also includes an external hole pressurizer, which is connected to the tail end hole sealer and the first hole sealer in each of the repeating units in sequence through an air pipe; the external hole pressurizer is provided with a pressure gauge, which is used to indicate the pressure in the tail end hole sealer and each of the first hole sealers.

[0014] The second aspect of the present invention provides a method for installing a series of three-dimensional rock disturbance stress sensors, using the installation device of the series of three-dimensional rock disturbance stress sensors described in the first aspect to monitor the disturbance stress of the rock mass, the method comprising: setting a borehole with a predetermined inclination in a tunnel or laneway, using a borehole camera to detect the borehole, and recording the detection data of the borehole; determining the number and installation position of the three-dimensional disturbance stress sensors according to the detection data, calculating the distance between the three-dimensional disturbance stress sensors in two adjacent repetitive units, and determining the number of first push rods to be N-1; filling the top rubber cylinder with glue, and setting a head end trigger mechanism inside the top rubber cylinder to control the top The glue in the glue cylinder flows out; the top glue cylinder and the three-dimensional disturbance stress sensor of the first repeating unit are connected through the head end assembly, the three-dimensional disturbance stress sensor of the first repeating unit and the first first push rod are connected through the first assembly, and a first hole sealer is set in the middle of the first assembly to seal the glue flowing out of the top glue cylinder; the three-dimensional disturbance stress sensor of the first repeating unit is sent to the preset installation position in the drill hole through the first first push rod; the glue is filled into the first glue cylinder, and a first trigger mechanism is set inside the first glue cylinder to control the outflow of the glue in the first glue cylinder; the first glue cylinder is connected through the second assembly and the first first push rod, one end of the third assembly part is fixedly connected to the bottom end of the first rubber cylinder; the other end of the third assembly part of the first repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the second repeating unit, the other end of the three-dimensional disturbance stress sensor of the second repeating unit is fixedly connected to the second first push rod through the first assembly part of the second repeating unit, and a first sealer is set in the middle of the first assembly part of the second repeating unit to seal the glue flowing out of the first rubber cylinder in the first repeating unit; the three-dimensional disturbance stress sensor of the second repeating unit is fixedly connected to the second first push rod through the second first push rod. Send it into the preset installation position in the borehole; by analogy, the other end of the third assembly part of the N-2th repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the N-1th repeating unit, the other end of the three-dimensional disturbance stress sensor of the N-1th repeating unit is fixedly connected to the N-1th first pushing rod through the first assembly part of the N-1th repeating unit, and the glue flowing out of the first glue cylinder in the N-2th repeating unit is blocked by the first sealer of the N-1th repeating unit; send the three-dimensional disturbance stress sensor of the N-1th repeating unit into the preset installation position in the borehole through the N-1th first pushing rod;The other end of the third assembly of the N-1th repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the Nth repeating unit, the other end of the three-dimensional disturbance stress sensor of the Nth repeating unit is fixedly connected to one end of the tail end assembly, and the other end of the tail end assembly is detachably connected to the tail end push rod; the three-dimensional disturbance stress sensor of the Nth repeating unit is sent to the preset installation position in the borehole by the tail end push rod to complete the installation of the series rock mass three-dimensional disturbance stress sensor; wherein, N-1 is an integer greater than 1. ;

[0015] In the second aspect, the method further includes: arranging a trigger power supply and an external pressurizer outside the drill hole; the trigger power supply is connected to the first trigger mechanism and the head end trigger mechanism in each of the repeating units in sequence through a cable, so as to trigger the glue in the top rubber cylinder and each of the first rubber cylinders to flow out; the external pressurizer is connected to the first hole sealer in each of the repeating units in sequence through an air pipe, so as to adjust the pressure in each of the first hole sealer to seal the drill hole.

[0016] Beneficial effects:

[0017] The present invention provides an installation device for a serial three-dimensional rock disturbance stress sensor, which is composed of a head end unit, a plurality of repeating units and a tail end unit connected in sequence. The head end unit includes a top rubber cylinder and a head end assembly. A head end trigger mechanism is arranged inside the top rubber cylinder to control the outflow of the glue in the top rubber cylinder. One end of the head end assembly is fixedly connected to the bottom end of the top rubber cylinder, and the other end is fixedly connected to the repeating unit to form the top rubber cylinder and the repeating unit into a whole. Each repeating unit includes a three-dimensional disturbance stress sensor, a first assembly and a first hole sealer. One end of the three-dimensional disturbance stress sensor of the first repeating unit among the plurality of repeating units is fixedly connected to the other end of the head end assembly, and the other end is fixedly connected to the first assembly to fix the measurement orientation of the three-dimensional disturbance stress sensor. The first hole sealer is arranged in the middle of the first assembly. When the glue in the top rubber cylinder flows out to the vicinity of the three-dimensional disturbance stress sensor, the first hole sealer can not only seal the borehole, but also prevent the glue from continuing to flow, thereby reducing the amount of glue used and improving the coupling effect between the three-dimensional disturbance stress sensor and the rock mass. A repeating unit also includes a first push rod, a second assembly, a first rubber cylinder and a third assembly. One end of the first push rod is fixedly connected to the first assembly so as to send the three-dimensional disturbance stress sensor to the pre-installation position. One end of the second assembly is fixedly connected to the other end of the first push rod, and the other end is fixedly connected to the top of the first rubber cylinder. One end of the third assembly of the first repeating unit is fixedly connected to the bottom end of the first rubber cylinder, and the other end is fixedly connected to one end of the three-dimensional disturbance stress sensor in the next repeating unit. A first trigger mechanism is arranged inside the first rubber cylinder so that the glue in the first rubber cylinder can inject glue into the three-dimensional disturbance stress sensor in the next repeating unit. With this arrangement, multiple three-dimensional disturbance stress sensors can be installed at intervals in a borehole. The tail unit includes a tail assembly and a tail push rod. One end of the tail assembly is fixedly connected to the other end of the three-dimensional disturbance stress sensor of the last repeating unit, and the other end is detachably connected to the tail push rod so that the tail push rod can send the last three-dimensional disturbance stress sensor to the pre-installation position in the borehole and can also be recycled. The present invention can accurately install multiple three-dimensional disturbance stress sensors in one borehole without adopting full-hole grouting bonding, thereby realizing the installation of one-hole multi-point distributed rock three-dimensional disturbance stress sensors; the glue in the top glue cylinder is triggered by the head end trigger mechanism to bond the three-dimensional disturbance stress sensor in the first repeating unit, and the glue in a corresponding first glue cylinder is triggered by the first trigger mechanism to bond the three-dimensional disturbance stress sensor in another repeating unit, so as to ensure that the three-dimensional disturbance stress sensor and the rock mass can be well coupled, improve the convenience and correctness of the installation of the three-dimensional disturbance stress sensor, ensure the successful monitoring of the rock mass disturbance stress, and avoid the failure of the stress monitoring sensor, large result error, repeated test consumption and equipment loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of an installation device of a series-type rock mass three-dimensional disturbance stress sensor in the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the top rubber cylinder in the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the glue inlet and the glue outlet in the top glue cylinder of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the head end assembly in the present invention;

[0023] Figure 5 It is a structural schematic diagram of the first assembly part in the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the first push rod / tail end push rod in the present invention;

[0025] Figure 7 It is a structural schematic diagram of a square interface and a latch hole in the first push rod of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the second assembly part in the present invention;

[0027] Reference numerals:

[0028] 1. Head end unit; 11. Top rubber cylinder; 111. Head end rubber inlet; 112. Head end rubber outlet; 12. Head end trigger mechanism; 121. Micro motor; 122. Spring; 123. Vertical rod; 124. Stopper; 13. Head end assembly; 131. First bolt interface; 132. Second bolt interface; 133. First threading port; 134. First outlet; 14. Stainless steel conical hole cover;

[0029] 2. Repeating unit; 21. Three-dimensional disturbance stress sensor; 22. First assembly part; 221. Third threaded interface; 23. First hole sealer; 231. Rubber airbag; 232. First stainless steel cable tie; 233. Second stainless steel cable tie; 24. First push rod; 241. Square interface; 242. Pin port; 243. Open seam; 25. Second assembly part; 251. Fourth bolt interface; 252. Second threading port; 253. Fifth bolt interface; 254. Second wire outlet; 255. Third wire outlet; 26. First rubber cartridge; 27. Third assembly part; 28. First trigger mechanism;

[0030] 3. Tail end unit; 31. Tail end assembly; 311. Connector; 312. Tail end hole sealer; 32. Tail end push rod;

[0031] 4. Trigger power supply;

[0032] 5. Cable;

[0033] 6. External pressure booster;

[0034] 7. Trachea. DETAILED DESCRIPTION

[0035] The technical scheme of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0036] Meanwhile, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.

[0037] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1 The present invention provides an installation device for a series-type three-dimensional rock disturbance stress sensor 21, the installation device is composed of a head end unit 1, a plurality of repeating units 2 and a tail end unit 3 connected in sequence; the head end unit 1 comprises: a top rubber cylinder 11, a head end trigger mechanism 12 is arranged inside the top rubber cylinder 11, and the head end trigger mechanism 12 is used to control the outflow of the glue in the top rubber cylinder 11; a head end assembly part 13, one end of which is fixedly connected to the bottom end of the top rubber cylinder 11, and the other end of the head end assembly part 13 is fixedly connected to the repeating unit 2; each of the repeating units 2 comprises: a three-dimensional disturbance stress sensor 21; a first assembly part 22, one end of which is fixedly connected to the other end of the three-dimensional disturbance stress sensor 21; a first hole sealer 23, which is arranged in the middle of the first assembly part 22 and is used to seal the glue; a first push rod 24, one end of which is fixedly connected to the other end of the first assembly part 22; a second assembly part 25, one end of which is fixedly connected to the other end of the first push rod 24; a first rubber cylinder 26, the first assembly part 22 is fixedly connected to the other end of the first push rod 24; a second assembly part 26 is fixedly connected to the other end of the first push rod 24; a first rubber cylinder 26 is fixedly connected to the first assembly part 22; a second assembly part 26 is fixedly connected to the first push rod 24; a first rubber cylinder 26 is fixedly connected to the first assembly part 2 ... A first trigger mechanism 28 is provided inside a rubber cylinder 26, and the first trigger mechanism 28 is used to control the outflow of the rubber liquid in the first rubber cylinder 26. The top end of the first rubber cylinder 26 is fixedly connected to the other end of the second assembly part 25; the third assembly part 27, one end of which is fixedly connected to the bottom end of the first rubber cylinder 26; wherein, one end of the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 among several repeating units 2 is fixedly connected to the other end of the head end assembly part 13, the other end of the third assembly part 27 of the first repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the next repeating unit 2, and the other end of the three-dimensional disturbance stress sensor 21 of the last repeating unit 2 is fixedly connected to the tail end unit 3; the tail end unit 3 includes: a tail end assembly part 31, one end of which is fixedly connected to the other end of the three-dimensional disturbance stress sensor 21 of the last repeating unit 2; and a tail end push rod 32, one end of which is detachably connected to the other end of the tail end assembly part 31.

[0040] Specifically, the present invention provides an installation device for a series-type rock mass three-dimensional disturbance stress sensor 21, which is composed of a head end unit 1, a plurality of repeating units 2 and a tail end unit 3 connected in sequence, wherein the head end unit 1 includes a top rubber cylinder 11 and a head end assembly part 13, and a head end trigger mechanism 12 is arranged inside the top rubber cylinder 11 to control the outflow of the glue in the top rubber cylinder 11, one end of the head end assembly part 13 is fixedly connected to the bottom end of the top rubber cylinder 11, and the other end is fixedly connected to the repeating unit 2 to form the top rubber cylinder 11 and the repeating unit 2 into a whole; each repeating unit 2 includes a three-dimensional disturbance stress sensor 21, a first assembly part 13, and a tail end unit 3 connected in sequence; the head end unit 1 includes a top rubber cylinder 11 and a head end assembly part 13, and a head end trigger mechanism 12 is arranged inside the top rubber cylinder 11 to control the outflow of the glue in the top rubber cylinder 11, and one end of the head end assembly part 13 is fixedly connected to the bottom end of the top rubber cylinder 11, and the other end is fixedly connected to the repeating unit 2 to form the top rubber cylinder 11 and the repeating unit 2 into a whole; each repeating unit 2 includes a three-dimensional disturbance stress sensor 21, a first assembly part 13, and a tail end unit 3 connected in sequence; The first hole sealer 23 is a first hole sealer 23, one end of the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 among the plurality of repeating units 2 is fixedly connected to the other end of the head end assembly part 13, and the other end is fixedly connected to the first assembly part 22 to fix the measurement orientation of the three-dimensional disturbance stress sensor 21. The first hole sealer 23 is arranged in the middle of the first assembly part 22. When the glue in the top glue cylinder 11 flows out to the vicinity of the three-dimensional disturbance stress sensor 21, the first hole sealer 23 can not only seal the borehole, but also prevent the glue from continuing to flow, thereby reducing the amount of glue used and improving the coupling effect between the three-dimensional disturbance stress sensor 21 and the rock mass. Each repeating unit 2 further includes a first push rod 24, a second assembly part 25, a first rubber cylinder 26 and a third assembly part 27. One end of the first push rod 24 is fixedly connected to the first assembly part 22 so as to send the three-dimensional disturbance stress sensor 21 to the pre-installation position. One end of the second assembly part 25 is fixedly connected to the other end of the first push rod 24, and the other end is fixedly connected to the top of the first rubber cylinder 26. One end of the third assembly part 27 of the first repeating unit 2 is fixedly connected to the bottom end of the first rubber cylinder 26, and the other end is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 in the next repeating unit 2, and the inner end of the first rubber cylinder 26 is fixedly connected to the bottom end of the first rubber cylinder 26. A first trigger mechanism 28 is provided in the part so that the glue in the first glue cylinder 26 can inject glue into the three-dimensional disturbance stress sensor 21 in the next repeating unit 2. With this arrangement, multiple three-dimensional disturbance stress sensors 21 can be installed at intervals in a borehole; the tail end unit 3 includes a tail end assembly part 31 and a tail end push rod 32, one end of the tail end assembly part 31 is fixedly connected to the other end of the three-dimensional disturbance stress sensor 21 of the last repeating unit 2, and the other end is detachably connected to the tail end push rod 32, so that the tail end push rod 32 can send the last three-dimensional disturbance stress sensor 21 to the pre-installation position in the borehole and can also be recycled.The present invention can accurately install multiple three-dimensional disturbance stress sensors 21 in one borehole without adopting full-hole grouting bonding, thereby realizing the installation of a one-hole multi-point distributed rock three-dimensional disturbance stress sensor 21; the glue in the top glue cylinder 11 is triggered by the head end trigger mechanism 12 to bond the three-dimensional disturbance stress sensor 21 in the first repeating unit 2, and the glue in the corresponding first glue cylinder 26 is triggered by the first trigger mechanism 28 to bond the three-dimensional disturbance stress sensor 21 in another repeating unit 2, so as to ensure that the three-dimensional disturbance stress sensor 21 can be well coupled with the rock mass, improve the convenience and correctness of the installation of the three-dimensional disturbance stress sensor 21, ensure the successful monitoring of the rock mass disturbance stress, and avoid the failure of the stress monitoring sensor, large result error, repeated test consumption and equipment loss.

[0041] In some possible embodiments, the head-end trigger mechanism 12 includes: a micromotor 121, which is fixed inside the top rubber cylinder 11; a spring 122, one end of which is fixed on the micromotor 121; a vertical rod 123, the top end of which is fixedly connected to the other end of the spring 122; and a stopper 124, which is fixed to the bottom end of the vertical rod 123 and is used to prevent the glue in the top rubber cylinder 11 from flowing out.

[0042] Those skilled in the art will understand that Figure 2 As shown, the head-end trigger mechanism 12 includes a micromotor 121, a spring 122, a vertical rod 123 and a stopper 124. The micromotor 121 is fixed inside the top rubber cylinder 11 and can be connected to the trigger power supply 4 outside the hole through a cable 5. One end of the spring 122 is fixed on the micromotor 121, and the other end is fixedly connected to the top of the vertical rod 123. The bottom end of the vertical rod 123 is provided with a stopper 124 to prevent the glue in the top rubber cylinder 11 from flowing out; when the micromotor 121 is energized, the trigger spring 122 is deformed and the vertical rod 123 is ejected. At the same time, under the push of the gravity of the glue, the stopper 124 reaches the bottom of the top rubber cylinder 11, and the glue flows out of the top rubber cylinder 11 and flows to the vicinity of the three-dimensional disturbance stress sensor 21, and the three-dimensional disturbance stress sensor 21 is injected with glue, thereby realizing one-button triggering to bond the three-dimensional disturbance stress sensor 21 and the rock mass, thereby improving the coupling effect. In a specific embodiment, the micromotor 121 is a disposable power supply device, and when the power is turned on, the circuit of the micromotor 121 is disconnected. In addition, the structure of the first trigger mechanism 28 in the repeating unit 2 is the same as that of the head end trigger mechanism 12, and is connected in series with the head end trigger mechanism 12 through the cable 5.

[0043] In some possible implementations, the first hole sealer 23 includes: a rubber airbag 231, which is sleeved on the middle side wall of the first assembly part 22; a first stainless steel cable tie 232, which is used to fix one end of the rubber airbag 231 to the first assembly part 22; and a second stainless steel cable tie 233, which is used to fix the other end of the rubber airbag 231 to the first assembly part 22.

[0044] In order to prevent the glue from flowing into the borehole in all directions, a first hole sealer 23 is arranged near the corresponding three-dimensional disturbance stress sensor 21 to seal the glue so that the glue can flow onto the corresponding three-dimensional disturbance stress sensor 21 as much as possible, so as to achieve accurate glue injection and reduce the amount of glue. In a specific embodiment, the first hole sealer 23 includes a rubber airbag 231, a first stainless steel tie 232 and a second stainless steel tie 233. The rubber airbag 231 is sleeved on the middle side wall of the first assembly part 22, and one end of the rubber airbag 231 is fixed to the first assembly part 22 by the first stainless steel tie 232, and the other end of the rubber airbag 231 is fixed to the first assembly part 22 by the second stainless steel tie 233 to seal the rubber airbag 231, and an air pipe 7 is arranged on the rubber airbag 231 to pressurize the rubber airbag 231 so that it expands and bulges to seal the glue.

[0045] In some possible implementations, the head end unit 1 further includes a stainless steel conical hole cover 14 , and the stainless steel conical hole cover 14 is detachably connected to the top end of the top rubber cylinder 11 .

[0046] This is because the stainless steel conical hole cover 14 is provided at the top end of the top rubber cylinder 11 to play a guiding role.

[0047] In some possible embodiments, the top rubber cylinder 11 and the first rubber cylinder 26 are both used to store glue liquid; two head glue inlets 111 are evenly spaced apart on the upper portion of the top rubber cylinder 11, and four head glue outlets 112 are evenly spaced apart on the lower portion of the top rubber cylinder 11; two first glue inlets are evenly spaced apart on the upper portion of the first rubber cylinder 26, and four first glue outlets are evenly spaced apart on the lower portion of the first rubber cylinder 26.

[0048] Those skilled in the art will understand that Figure 3As shown, two head end glue inlets 111 are provided at the upper part of the top glue cylinder 11, and four head end glue outlets 112 are provided at the lower part. The head end glue inlet 111 is arranged between the micro motor 121 and the stopper 124, and the head end glue outlet 112 is arranged between the bottom end of the top glue cylinder 11 and the stopper 124. Before construction, the top glue cylinder 11 is first filled with glue from the head end glue inlet 111, and the stopper 124 can prevent the glue from flowing out of the top glue cylinder 11. When the micro motor 121 is powered on, the stopper 124 moves to the bottom of the top glue cylinder 11 along with the vertical rod 123, and then the glue flows out from the head end glue outlet 112 to inject glue into the three-dimensional disturbance stress sensor 21. In addition, the structural setting of each first glue cylinder 26 is the same as that of the top glue cylinder 11, which is conducive to realizing the precise injection of glue in the first glue cylinder 26 into a corresponding three-dimensional disturbance stress sensor 21.

[0049] In some possible embodiments, the installation device also includes a trigger power supply 4, which is connected to the first trigger mechanism 28 and the head end trigger mechanism 12 in each of the repeating units 2 in sequence through a cable 5; the trigger power supply 4 includes an indicator light and a switch, the indicator light is used to indicate whether each of the first trigger mechanism 28 and the head end trigger mechanism 12 is successfully triggered, and the switch is used to control the power on of each of the first trigger mechanism 28 and the head end trigger mechanism 12.

[0050] In order to achieve one-touch triggering of the glue liquid in the top glue cylinder 11 and all the first glue cylinders 26 to discharge glue at the same time, the micro motor 121 of the first trigger mechanism 28 and the micro motor 121 of the head end trigger mechanism 12 in each repeating unit 2 are sequentially connected through the cable 5, and the cable 5 is connected to the trigger power supply 4 to form a series circuit. In addition, an indicator light and a switch are also provided on the trigger power supply 4, and the indicator light is used to indicate whether the trigger is successful, and the switch is used to realize power supply.

[0051] It should be supplemented that the method for judging whether the trigger power supply 4 is successfully triggered includes: setting an indicator light and a switch on the trigger power supply 4, the indicator light is used to identify whether each first trigger mechanism 28 and the head-end trigger mechanism 12 are successfully triggered, and the switch is used to control the power on of each first trigger mechanism 28 and the head-end trigger mechanism 12; when the switch is pressed, the indicator light flashes: the indicator light flashes once, and the switch is pressed again, and the indicator light no longer flashes, then the trigger is successful; if the indicator light is off or the indicator light is always on, then the trigger fails.

[0052] In some possible embodiments, the tail end assembly 31 includes: a connecting piece 311, one end of the connecting piece 311 is fixedly connected to the other end of the three-dimensional disturbance stress sensor 21 of the last repeating unit 2, and the other end of the connecting piece 311 is detachably connected to one end of the tail end push rod 32; a tail end hole sealer 312, the tail end hole sealer 312 is sleeved on the middle side wall of the connecting piece 311, and one end of the tail end hole sealer 312 is fixedly connected to the connecting piece 311 through a first cable tie, and the other end of the tail end hole sealer 312 is fixedly connected to the connecting piece 311 through a second cable tie.

[0053] Those skilled in the art can understand that the tail end assembly 31 includes a connecting piece 311 and a tail end sealer 312, one end of the connecting piece 311 is fixedly connected to the three-dimensional disturbance stress sensor 21 in the last repeating unit 2, and is detachably connected to the tail end push rod 32 to fix the three-dimensional disturbance stress sensor 21 and send it to a specified position in the borehole; the tail end sealer 312 is preferably a rubber airbag 231, which is fixed to the connecting piece 311 by a first cable tie and a second cable tie, and an air pipe 7 is led out from the rubber airbag 231 and connected to an external pressurizer to control the pressure of the rubber airbag 231.

[0054] In some possible embodiments, the installation device also includes an external hole pressurizer 6, which is connected to the tail end hole sealer 312 and the first hole sealer 23 in each of the repeating units 2 in sequence through an air pipe 7; the external hole pressurizer 6 is provided with a pressure gauge, which is used to indicate the pressure inside the tail end hole sealer 312 and each of the first hole sealers 23.

[0055] This is because an external pressurizer 6 is provided outside the borehole, and a pressure gauge is provided on the external pressurizer 6, so that the pressure in the tail end hole sealer 312 and all the first hole sealers 23 can be adjusted and controlled, and the tail end hole sealer 312 and all the first hole sealers 23 are connected in series through the air pipe 7, and the air pipe 7 is connected to the external pressurizer 6, so that the tail end hole sealer 312 and all the first hole sealers 23 are pressurized by the external pressurizer 6, so that they expand and seal the glue, thereby realizing the sealing of the borehole.

[0056] like Figure 4As shown, both ends of the head-end assembly part 13 can be set as square caps, four first bolt interfaces 131 are evenly spaced around the square cap at one end, and four second bolt interfaces 132 are evenly spaced around the square cap at the other end, and a first threading port 133 is opened in the middle of the square cap, and a first wire outlet port 134 is opened on one side of the head-end assembly part 13, so that the cable 5 led out from the three-dimensional disturbance stress sensor 21 is connected to the head-end trigger mechanism 12 through the first threading port 133 and the first wire outlet port 134 in sequence; in addition, one end of the head-end assembly part 13 is threadedly connected to the bottom end of the top rubber cylinder 11 through the first bolt interface 131, and the other end of the head-end assembly part 13 is fixedly connected to the three-dimensional disturbance stress sensor 21 through the second bolt interface 132.

[0057] like Figure 5 As shown, one end of the first assembly part 22 is set as a square cap, and four third threaded interfaces 221 are evenly spaced around the square cap. One end of the first assembly part 22 is fixedly connected to the three-dimensional disturbance stress sensor 21 through the third threaded interface 221, so as to fix the measuring position of the three-dimensional disturbance stress sensor 21 in combination with the head end assembly part 13. A first hole sealer 23 is set in the middle of the first assembly part 22, and the other end of the first assembly part 22 is fixedly connected to the first push rod 24; in addition, the structure of the tail end assembly part 31 is similar to that of the first assembly part 22.

[0058] like Figure 6-7 As shown, the structure of the first push rod 24 is the same as that of the tail push rod 32. The first push rod 24 is a square rod. One end of the first push rod 24 is provided with a square interface 241, and the other end is provided with a latch hole 242. One end of the first push rod 24 is fixedly connected to the first assembly part 22 through the square interface 241, and the other end is fixedly connected to the second assembly part 25 through the latch hole 242. An opening slit 243 is provided on one side of the first push rod 24 for the cable 5. The air pipe 7 passes through the first push rod 24.

[0059] like Figure 8As shown, both ends of the second assembly part 25 can be set as square caps, four fourth bolt interfaces 251 are evenly spaced around the square cap at one end, and a second threading port 252 is opened in the middle of the square cap, and four fifth bolt interfaces 253 are evenly spaced around the square cap at the other end, a second wire outlet 254 is set on one side of the second assembly part 25, and a third wire outlet 255 is set on the other side; one end of the second assembly part 25 is threadedly connected to the first push rod 24 through the fourth bolt interface 251, and the other end is threadedly connected to the first push rod 24 through the fifth bolt interface The opening 253 is fixedly connected to the top end of the first rubber cylinder 26, and the cable 5 led out from the first push rod 24 is electrically connected to the first trigger mechanism 28 in the first rubber cylinder 26 through the second threading opening 252 and the second outlet opening 254 in turn, forming a series circuit; the air pipe 7 led out from the first push rod 24 is connected to the air pipe 7 on the first hole sealer 23 in the next repeating unit 2 through the second threading opening 252 and the third outlet opening 255 in turn, bypassing the first rubber cylinder 26, and connected to the air pipe 7 on the tail end hole sealer 312, to form an air pressure passage.

[0060] Embodiment 2

[0061] The present invention provides a method for installing a series-type rock mass three-dimensional disturbance stress sensor 21, using the installation device of the series-type rock mass three-dimensional disturbance stress sensor 21 described in the first aspect to monitor the disturbance stress of the rock mass, the method comprising:

[0062] A borehole with a predetermined inclination angle is set in a tunnel or a laneway, and the borehole is inspected by a borehole camera to record the inspection data of the borehole;

[0063] Determine the number and installation positions of the three-dimensional disturbance stress sensors 21 according to the detection data, calculate the distance between the three-dimensional disturbance stress sensors 21 in two adjacent repeating units 2, and determine the number of first push rods to be N-1;

[0064] Filling the top rubber cylinder 11 with glue liquid, and setting a head end trigger mechanism 12 inside the top rubber cylinder 11 to control the outflow of the glue liquid in the top rubber cylinder 11;

[0065] The top rubber cylinder 11 and the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 are connected through the head end assembly 13, the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 and the first first push rod are connected through the first assembly 22, and a first hole sealer 23 is arranged in the middle of the first assembly 22 to seal the glue liquid flowing out of the top rubber cylinder 11;

[0066] Sending the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 into a preset installation position in the borehole through the first first pushing rod;

[0067] Filling the first rubber tube 26 with glue, and setting a first trigger mechanism 28 inside the first rubber tube 26 to control the outflow of the glue in the first rubber tube 26;

[0068] The first rubber tube 26 and the first first push rod are connected by a second assembly part, and one end of the third assembly part 27 is fixedly connected to the bottom end of the first rubber tube 26;

[0069] The other end of the third assembly part 27 of the first repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the second repeating unit 2, and the other end of the three-dimensional disturbance stress sensor 21 of the second repeating unit 2 is fixedly connected to the second first push rod through the first assembly part 22 of the second repeating unit 2, and a first hole sealer 23 is arranged in the middle of the first assembly part 22 of the second repeating unit 2 to seal the glue liquid flowing out of the first glue cylinder 26 in the first repeating unit 2;

[0070] Sending the three-dimensional disturbance stress sensor 21 of the second repeating unit 2 into a preset installation position in the borehole through the second first pushing rod;

[0071] And so on.

[0072] The other end of the third assembly part 27 of the N-2th repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2, and the other end of the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2 is fixedly connected to the N-1th first pushing rod through the first assembly part 22 of the N-1th repeating unit 2, and the glue flowing out of the first glue cylinder 26 in the N-2th repeating unit 2 is blocked by the first hole sealer 23 of the N-1th repeating unit 2;

[0073] Sending the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2 into a preset installation position in the borehole through the N-1th first pushing rod;

[0074] The other end of the third assembly part 27 of the N-1th repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2, the other end of the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2 is fixedly connected to one end of the tail end assembly part 31, and the other end of the tail end assembly part 31 is detachably connected to the tail end push rod 32;

[0075] The three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2 is sent to a preset installation position in the borehole by the tail end push rod 32 to complete the installation of the series-connected three-dimensional rock mass disturbance stress sensor 21;

[0076] Wherein, N-1 is an integer greater than 1.

[0077] In some possible embodiments, the method further includes: setting a trigger power supply 4 and an external hole pressurizer 6 outside the drill hole; the trigger power supply 4 is connected to the first trigger mechanism 28 and the head end trigger mechanism 12 in each of the repeating units 2 in sequence through a cable 5, so as to trigger the glue in the top rubber cylinder 11 and each of the first rubber cylinders 26 to flow out; the external hole pressurizer 6 is connected to the first hole sealer 23 in each of the repeating units 2 in sequence through an air pipe 7, so as to adjust the pressure in each of the first hole sealers 23 to seal the drill hole.

[0078] Specifically, a borehole is opened in the surrounding rock of the lane or tunnel at a predetermined inclination angle, and a borehole camera is used to explore the borehole to check and observe whether there is a hole collapse phenomenon in the hole and whether the rock wall in the hole is smooth, and the location of rock fragmentation and crack development in the hole is recorded to avoid installing the sensor at this location, thereby determining the number and installation position of the three-dimensional disturbance stress sensor 21, and calculating the distance between the three-dimensional disturbance stress sensors 21 in two adjacent repeating units 2 to determine that the number of the first push rod is N-1; fill the top rubber cylinder 11 with glue, and set a head end trigger mechanism 12 inside the top rubber cylinder 11 to control the outflow of the glue in the top rubber cylinder 11, and fix one end of the head end assembly 13 to the top rubber cylinder 11, and the other end to the first repeating unit 2 One end of the three-dimensional disturbance stress sensor 21 is fixedly connected to complete the fixation of the top; then a plurality of repeating units 2 are installed, the other end of the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 is fixedly connected to the first assembly part 22 of the first repeating unit 2, and a first hole sealer 23 is arranged in the middle of the first assembly part 22 to seal the glue flowing out of the top rubber cylinder 11, and one end of the first first push rod is fixedly connected to the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 through the first assembly part 22 of the first repeating unit 2, so that the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 is slowly sent into the preset installation position in the borehole through the first first push rod, and the installation and fixation of the three-dimensional disturbance stress sensor 21 of the first repeating unit 2 is completed;

[0079] Fill the first rubber cylinder 26 of the first repeating unit 2 with glue, and set a first trigger mechanism 28 in the first rubber cylinder 26 to control the outflow of the glue in the first rubber cylinder 26, the first rubber cylinder 26 is fixedly connected to the other end of the first first push rod through the second assembly part, one end of the third assembly part 27 of the first repeating unit 2 is fixedly connected to the first rubber cylinder 26, the other end of the third assembly part 27 of the first repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the second repeating unit 2, the other end of the three-dimensional disturbance stress sensor 21 of the second repeating unit 2 is fixedly connected to the second first push rod through the first assembly part 22 of the second repeating unit 2, and a first hole sealer 23 is set in the middle of the first assembly part 22 of the second repeating unit 2 to seal the glue flowing out of the first rubber cylinder 26 in the first repeating unit 2, and the three-dimensional disturbance stress sensor 21 of the second repeating unit 2 is sent to the preset installation position in the borehole through the second first push rod to complete the installation of the three-dimensional disturbance stress sensor 21 of the second repeating unit 2;

[0080] Fill the first rubber cylinder 26 of the second repeating unit 2 with glue, and set a first trigger mechanism 28 in the first rubber cylinder 26 to control the outflow of the glue in the first rubber cylinder 26, the first rubber cylinder 26 is fixedly connected to the other end of the second first push rod through the second assembly part, one end of the third assembly part 27 of the second repeating unit 2 is fixedly connected to the first rubber cylinder 26, the other end of the third assembly part 27 of the second repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the third repeating unit 2, the other end of the three-dimensional disturbance stress sensor 21 of the third repeating unit 2 is fixedly connected to the third first push rod through the first assembly part 22 of the third repeating unit 2, and a first hole sealer 23 is set in the middle of the first assembly part 22 of the third repeating unit 2 to seal the glue flowing out of the first rubber cylinder 26 in the second repeating unit 2, and the three-dimensional disturbance stress sensor 21 of the third repeating unit 2 is sent to the preset installation position in the borehole through the third first push rod to complete the installation of the three-dimensional disturbance stress sensor 21 of the third repeating unit 2;

[0081] Repeat the above steps to complete the installation of the three-dimensional disturbance stress sensor 21 of the N-1 repeating unit 2: fill the first rubber cylinder 26 of the N-2 repeating unit 2 with glue, and set a first trigger mechanism 28 in the first rubber cylinder 26 to control the outflow of the glue in the first rubber cylinder 26, the first rubber cylinder 26 is fixedly connected to the other end of the N-2 first push rod through the second assembly part, one end of the third assembly part 27 of the N-2 repeating unit 2 is fixedly connected to the first rubber cylinder 26, and the other end of the third assembly part 27 of the N-2 repeating unit 2 is fixedly connected to the three-dimensional disturbance stress sensor 21 of the N-1 repeating unit 2 One end of the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2 is fixedly connected, the other end of the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2 is fixedly connected to the N-1th first pushing rod through the first assembly part 22 of the N-1th repeating unit 2, and a first hole sealer 23 is set in the middle of the first assembly part 22 of the N-1th repeating unit 2 to seal the glue flowing out of the first glue cylinder 26 in the N-2th repeating unit 2, and the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2 is sent to the preset installation position in the borehole through the N-1th first pushing rod to complete the installation of the three-dimensional disturbance stress sensor 21 of the N-1th repeating unit 2;

[0082] The other end of the third assembly part 27 of the N-1th repeating unit 2 is fixedly connected to one end of the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2, the other end of the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2 is fixedly connected to one end of the tail end assembly part 31, the other end of the tail end assembly part 31 is detachably connected to the tail end push rod 32, and the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2 is sent to the preset installation position in the borehole through the tail end push rod 32 to complete the installation of the three-dimensional disturbance stress sensor 21 of the Nth repeating unit 2, thereby completing the installation of the series-type rock three-dimensional disturbance stress sensor 21.

[0083] Furthermore, a trigger power supply 4 and an external hole pressurizer 6 are arranged outside the borehole; wherein the trigger power supply 4 is connected to the first trigger mechanism 28 and the head end trigger mechanism 12 in each repeating unit 2 in sequence through a cable 5, and is used to trigger the glue in the top glue cylinder 11 and each first glue cylinder 26 to flow out, so as to achieve the purpose of one-touch triggering to inject glue to a corresponding three-dimensional disturbance stress sensor 21; the external hole pressurizer 6 is connected to the first hole sealer 23 in each repeating unit 2 in sequence through an air pipe 7, and is used to adjust the pressure in each of the first hole sealers 23, so that the outflowing glue is concentrated on a corresponding three-dimensional disturbance stress sensor 21, and the borehole is sealed, thereby improving the coupling effect between the three-dimensional disturbance stress sensor 21 and the rock mass in the tunnel (laneway), and thereby improving the monitoring accuracy of the three-dimensional disturbance stress sensor 21.

[0084] Since the second embodiment and the first embodiment are embodiments of the same inventive concept and some of their structures are exactly the same, the structures in the second embodiment that are substantially the same as those in the first embodiment will not be elaborated in detail. For the parts not described in detail, please refer to the first embodiment.

[0085] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. They should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

[0086] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An installation device for a series-type rock mass three-dimensional disturbance stress sensor, characterized in that: The installation device is composed of a head end unit, a plurality of repeating units and a tail end unit connected in sequence; The head end unit comprises: A top rubber cylinder, wherein a head end trigger mechanism is arranged inside the top rubber cylinder, and the head end trigger mechanism is used to control the outflow of the rubber liquid in the top rubber cylinder; A head end assembly part, one end of which is fixedly connected to the bottom end of the top rubber cylinder, and the other end of which is fixedly connected to the repeating unit; Each of the repeating units comprises: Three-dimensional disturbance stress sensor; A first assembly part, one end of which is fixedly connected to the other end of the three-dimensional disturbance stress sensor; A first hole sealer, arranged in the middle of the first assembly part, for sealing the glue liquid; A first push rod, one end of which is fixedly connected to the other end of the first assembly part; A second assembly part, one end of which is fixedly connected to the other end of the first push rod; A first rubber cylinder, wherein a first trigger mechanism is disposed inside the first rubber cylinder, and the first trigger mechanism is used to control the outflow of the rubber liquid in the first rubber cylinder, and the top end of the first rubber cylinder is fixedly connected to the other end of the second assembly part; A third assembly part, one end of which is fixedly connected to the bottom end of the first rubber cylinder; Among them, one end of the three-dimensional disturbance stress sensor of the first repeating unit among the plurality of repeating units is fixedly connected to the other end of the head end assembly, the other end of the third assembly of the first repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the next repeating unit, and the other end of the last three-dimensional disturbance stress sensor is fixedly connected to the tail end unit; The tail unit comprises: A tail end assembly, one end of which is fixedly connected to the other end of the last three-dimensional disturbance stress sensor; One end of the tail end push rod is detachably connected to the other end of the tail end assembly part.

2. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The first end trigger mechanism comprises: A micro motor, wherein the micro motor is fixed inside the top rubber cylinder; A spring, one end of which is fixed on the micromotor; A vertical rod, the top end of which is fixedly connected to the other end of the spring; A blocking member is fixed to the bottom end of the vertical rod and is used to prevent the glue in the top glue cylinder from flowing out.

3. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The first hole sealer comprises: A rubber airbag, wherein the rubber airbag is sleeved on the middle side wall of the first assembly part; A first stainless steel cable tie, used to fix one end of the rubber airbag to the first assembly part; The second stainless steel cable tie is used to fix the other end of the rubber airbag to the first assembly part.

4. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The head end unit further comprises a stainless steel conical hole cover, and the stainless steel conical hole cover is detachably connected to the top end of the top rubber cylinder.

5. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The top rubber cylinder and the first rubber cylinder are both used to store glue liquid; The upper part of the top rubber cylinder is provided with two head end rubber inlets at equal intervals, and the lower part of the top rubber cylinder is provided with four head end rubber outlets at equal intervals; The upper portion of the first rubber cylinder is provided with two first rubber inlets at equal intervals, and the lower portion of the first rubber cylinder is provided with four first rubber outlets at equal intervals.

6. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The installation device also includes a trigger power supply, which is sequentially connected to the first trigger mechanism and the head end trigger mechanism in each of the repeating units through a cable; The trigger power supply includes an indicator light and a switch. The indicator light is used to identify whether each of the first trigger mechanism and the head-end trigger mechanism is successfully triggered. The switch is used to control the power supply of each of the first trigger mechanism and the head-end trigger mechanism.

7. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 1 is characterized in that: The tail end assembly comprises: A connecting piece, one end of which is fixedly connected to the other end of the last three-dimensional disturbance stress sensor, and the other end of which is detachably connected to one end of the tail end push rod; A tail end hole sealer is sleeved on the middle side wall of the connecting piece, and one end of the tail end hole sealer is fixedly connected to the connecting piece through a first cable tie, and the other end of the tail end hole sealer is fixedly connected to the connecting piece through a second cable tie.

8. The installation device of the series rock mass three-dimensional disturbance stress sensor according to claim 7 is characterized in that: The installation device also includes an external hole pressurizer, which is sequentially connected to the tail end hole sealer and the first hole sealer in each of the repeating units through an air pipe; The external hole pressurizer is provided with a pressure gauge, and the pressure gauge is used to indicate the pressure in the tail end hole sealer and each of the first hole sealers.

9. A method for installing a series-type rock mass three-dimensional disturbance stress sensor, characterized in that: The disturbance stress of a rock mass is monitored by the installation device of the series-type three-dimensional rock mass disturbance stress sensor according to any one of claims 1 to 8, and the method comprises: A borehole with a predetermined inclination angle is set in a tunnel or a laneway, and the borehole is inspected by a borehole camera to record the inspection data of the borehole; Determine the number and installation positions of the three-dimensional disturbance stress sensors according to the detection data, calculate the distance between the three-dimensional disturbance stress sensors in two adjacent repeating units, and determine the number of the first push rods to be N-1; Filling the top rubber cylinder with glue liquid, and setting a head end trigger mechanism inside the top rubber cylinder to control the outflow of the glue liquid in the top rubber cylinder; The top rubber cylinder and the three-dimensional disturbance stress sensor of the first repeating unit are connected through the head end assembly, the three-dimensional disturbance stress sensor of the first repeating unit and the first first push rod are connected through the first assembly, and a first hole sealer is arranged in the middle of the first assembly to seal the glue liquid flowing out of the top rubber cylinder; Sending the three-dimensional disturbance stress sensor of the first repeating unit into a preset installation position in the borehole through the first first pushing rod; Filling the first rubber tube with glue liquid, and setting a first trigger mechanism inside the first rubber tube to control the outflow of the glue liquid in the first rubber tube; The first rubber cylinder and the first first push rod are connected by a second assembly part, and one end of the third assembly part is fixedly connected to the bottom end of the first rubber cylinder; The other end of the third assembly part of the first repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the second repeating unit, and the other end of the three-dimensional disturbance stress sensor of the second repeating unit is fixedly connected to the second first push rod through the first assembly part of the second repeating unit, and a first hole sealer is arranged in the middle of the first assembly part of the second repeating unit to seal the glue liquid flowing out of the first glue cylinder in the first repeating unit; Sending the three-dimensional disturbance stress sensor of the second repeating unit into a preset installation position in the borehole by means of a second first pushing rod; And so on. The other end of the third assembly part of the N-2th repeating unit is fixedly connected to one end of the three-dimensional disturbance stress sensor of the N-1th repeating unit, the other end of the three-dimensional disturbance stress sensor of the N-1th repeating unit is fixedly connected to the N-1th first pushing rod through the first assembly part of the N-1th repeating unit, and the glue flowing out of the first glue cylinder in the N-2th repeating unit is blocked by the first hole sealer of the N-1th repeating unit; Sending the three-dimensional disturbance stress sensor of the N-1th repeating unit into a preset installation position in the borehole through the N-1th first pushing rod; The other end of the third assembly of the N-1th repeating unit is fixedly connected to one end of the Nth three-dimensional disturbance stress sensor, the other end of the Nth three-dimensional disturbance stress sensor is fixedly connected to one end of the tail end assembly, and the other end of the tail end assembly is detachably connected to the tail end push rod; Sending the Nth three-dimensional disturbance stress sensor to a preset installation position in the borehole through the tail end push rod to complete the installation of the series-connected three-dimensional rock mass disturbance stress sensor; Wherein, N-1 is an integer greater than 1.

10. The method for installing a series rock mass three-dimensional disturbance stress sensor according to claim 9, characterized in that: The method further comprises: providing a trigger power source and an external hole pressurizer outside the borehole; The trigger power supply is connected to the first trigger mechanism and the head end trigger mechanism in each of the repeating units in sequence through a cable, so as to trigger the glue in the top glue cylinder and each of the first glue cylinders to flow out; The external hole pressurizer is sequentially connected to the first hole sealer in each of the repeating units through an air pipe, and is used to adjust the pressure in each of the first hole sealers to seal the drilled hole.

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