CN110274567B - Detection device and detection method for roadway surrounding rock slippage deformation - Google Patents
Detection device and detection method for roadway surrounding rock slippage deformation Download PDFInfo
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- CN110274567B CN110274567B CN201910536669.5A CN201910536669A CN110274567B CN 110274567 B CN110274567 B CN 110274567B CN 201910536669 A CN201910536669 A CN 201910536669A CN 110274567 B CN110274567 B CN 110274567B
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- anchor rod
- pull rope
- roadway
- detection device
- plug
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The invention relates to the field of rock mechanics and engineering, and provides a device and a method for detecting slippage deformation of surrounding rocks of a roadway, wherein the device comprises an anchor rod, a pull rope, a plug and an elastic piece; the anchor rod is hollow structure, the anchor rod cover is established the stay cord with outside the elastic component, the first end of anchor rod is connected with the end cap, the first end of elastic component with the end cap is connected, the second end of elastic component with the stay cord is connected, the stay cord is followed the cavity of anchor rod extends to the second end of anchor rod. According to the invention, the pull rope and the elastic part are arranged in the hollow anchor rod, the plug and the elastic part are adopted to connect the pull rope, the pull rope extends to the second end of the anchor rod along the cavity of the anchor rod, whether the detection device is subjected to shearing damage is judged by judging whether the pull rope can freely stretch out and draw back, and then whether the surrounding rock of the roadway is subjected to shearing deformation is deduced, so that the detection of the surrounding rock of the roadway is realized, and the stability of the roadway is maintained more effectively.
Description
Technical Field
The invention relates to the field of rock mechanics and engineering, in particular to a device and a method for detecting roadway surrounding rock sliding deformation.
Background
The shearing, slipping and deformation of the surrounding rock of the roadway is an important deformation and damage form of the roadway, damages supporting structures such as anchor rods and the like, and seriously influences the stability of the roadway. The anchor bolt support is commonly used in the existing roadway, the shearing sliding deformation of the surrounding rock of the roadway leads to the bending shearing damage of the anchor bolt, and the sheared tail anchor bolt is clamped by a drilled hole and cannot fall off or be pulled out due to the fact that the bent section exists at the shearing part of the anchor bolt, so that the false impression that the anchor bolt still works normally is caused, whether the surrounding rock of the roadway and the anchor bolt are damaged or not can not be judged, and the support effect is seriously influenced.
Therefore, whether the surrounding rock of the detection roadway is sheared, slipped and deformed or not is judged in time, whether the anchor rod is sheared and failed or not is judged, and the method has important significance for maintaining stability of the roadway.
Disclosure of Invention
Technical problem to be solved
In view of the technical defects and application requirements, the application provides a detection device and a detection method for roadway surrounding rock sliding deformation, and aims to detect the state of the roadway surrounding rock and maintain stability of the roadway.
(II) technical scheme
In order to solve the above problems, the present invention provides a device for detecting roadway surrounding rock slip deformation, comprising: the anchor rod, the pull rope, the plug and the elastic piece; the anchor rod is hollow structure, the anchor rod cover is established the stay cord with outside the elastic component, the first end of anchor rod is connected with the end cap, the first end of elastic component with the end cap is connected, the second end of elastic component with the stay cord is connected, the stay cord is followed the cavity of anchor rod extends to the second end of anchor rod.
Further, still include: a conical plug; the small-diameter end of the conical plug is embedded into the second end of the anchor rod, and the conical plug is connected with the pull rope.
Further, still include: a pull ring; the pull ring is arranged at the large-diameter end of the conical plug; the pull rope penetrates through the conical plug and the pull ring, and the pull rope is fixed on the pull ring and the conical plug by screwing the pull ring.
Further, still include: a tray and a nut; the tray with the nut all overlaps and establishes on the stock.
Further, the plug includes: the screw cap and the screw rod are connected with each other and integrally formed; the bolt is of a hollow structure, the first end of the elastic piece is connected with the nut and is arranged in the bolt, the bolt is sleeved in the anchor rod, and the nut is fixed at the first end of the anchor rod through the bolt.
Further, the pull rope is a steel wire or a galvanized wire.
Further, the anchor rod is a glass fiber reinforced plastic anchor rod.
Further, still include: a filling layer; the filling layer is arranged outside the anchor rod, and the anchor rod is fixed in the surrounding rock of the roadway through the filling layer.
In order to solve the problems, the invention provides a method for detecting the slippage deformation of the surrounding rock of the roadway, which adopts the detection device for detection and comprises the following steps:
step S1: drilling holes in the surrounding rock of the roadway according to the length and the diameter of the detection device, plugging in an anchoring agent, pushing the detection device into the drilled holes, stirring the anchoring agent to form a filling layer, and fixing the detection device in the drilled holes by adjusting the tray and the nuts;
step S2: connecting the pull ring and the conical plug, enabling the pull rope to penetrate through the pull ring and the conical plug, adjusting the fastened position of the pull rope, and enabling the pull rope between the elastic part and the conical plug to keep a straightening state;
step S3: and stretching the pull ring to confirm that the pull rope cannot be pulled out, and knowing that the detection device is sheared and damaged and the surrounding rock of the roadway is sheared, slid and deformed.
Further, the step of step S3 further includes: step S4: confirm that the stay cord can be pulled out, know that detection device does not take place to cut and destroy, tunnel country rock does not take place to cut the deformation that slides.
(III) advantageous effects
The invention provides a device and a method for detecting roadway surrounding rock slippage deformation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a detection apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a probe apparatus provided in an embodiment of the present invention after installation;
FIG. 3 is a schematic diagram of a stretching state of a detecting device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a detection device for failure to stretch according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a detection method provided by an embodiment of the present invention;
wherein, 1, anchor rod; 2. a plug; 3. an elastic member; 4. pulling a rope; 5. a conical plug; 6. a pull ring; 7. a tray; 8. a nut; 9. and (5) filling the layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
The embodiment of the invention provides a device for detecting roadway surrounding rock sliding deformation, which comprises the following components as shown in figure 1: anchor rod 1, end cap 2, elastic component 3 and stay cord 4. The anchor rod 1 is of a hollow structure, the anchor rod 1 is sleeved outside the pull rope 4 and the elastic piece 3, and the first end of the anchor rod 1 is connected with the plug 2. The elastic element 3 can be a spring, a first end of the elastic element 3 is connected with the plug 2, and a second end of the elastic element 3 is connected with the pull rope 4. The pull cord 4 extends along the cavity of the anchor rod 1 to the second end of the anchor rod 1.
In this embodiment, the pull rope 4 is a hard rope, and may be made of steel wire or galvanized wire, preferably steel wire.
Wherein, stock 1 is the glass steel stock, and cavity diameter and wall thickness can be adjusted according to the detection demand.
Because the rock mass shear slip deformation has regionality, whether the stay cord of accessible detecting device can freely stretch out and draw back consequently concludes whether tunnel country rock has taken place the shear slip deformation to and whether detecting device's stock takes place the shear failure destruction. In the use process, as shown in fig. 2, the detection device is installed according to an end anchor mode, and the fastening position of the pull rope is adjusted to keep the pull rope in a straightening state. As shown in fig. 3, if the tunnel surrounding rock is not shear-slipped and deformed, the detection device will not be shear-damaged, and the pull rope can freely stretch and contract. As shown in fig. 4, if the tunnel surrounding rock is deformed by shear slip, the detection device is damaged by shear, and the pulling rope is trapped by the dislocated rock body and cannot be stretched. The detection device has the advantages of simple structure, low cost and convenient use, and can be used as a mine pressure observation instrument.
The embodiment of the invention provides a device for detecting the slippage deformation of surrounding rocks of a roadway, which is characterized in that a pull rope and an elastic part are arranged in a hollow anchor rod, a plug and the elastic part are adopted to connect the pull rope, the pull rope extends to the second end of the anchor rod along the cavity of the anchor rod, whether the detection device is subjected to shear failure or not is judged according to whether the pull rope can freely stretch out and draw back or not, whether the surrounding rocks of the roadway are subjected to shear deformation or not is further deduced, the detection of the surrounding rocks of the roadway is realized, and the stability of the roadway is more effectively.
In one embodiment according to the present invention, as shown in fig. 1, the detecting device includes: a conical plug 5. The small diameter end of the conical plug 5 is embedded into the second end of the anchor rod 1, and the conical plug 5 is connected with the pull rope 4.
In order to adjust the pull rope 4 conveniently, a pull ring 6 can be additionally arranged at the large-diameter end of the conical plug 5, and the pull ring 6 is connected with the conical plug 5 through base threads. The pulling rope 4 passes through the conical plug 5 and the pull ring 6, and the pulling rope 4 can be fixed on the pull ring 6 and the conical plug 5 by screwing the pull ring 6.
In an embodiment according to the present invention, as shown in fig. 1, the detecting device further includes: a tray 7 and a nut 8. The tray 7 and the nut 8 are sleeved on the anchor rod 1. The outer surface of the anchor rod 1 is provided with threads, so that the tray 7 and the nut 8 are used for mounting and pre-tightening the anchor rod 1. The sonde is secured in the borehole by adjusting the tray and nut as shown in fig. 2.
In an embodiment according to the present invention, as shown in fig. 2, the detecting device further includes: and a filling layer 9. The filling layer 9 is arranged outside the anchor rod 1, and the anchor rod 1 is fixed in the surrounding rock of the roadway through the filling layer 9.
In this embodiment, as shown in fig. 1, the plug 2 includes: the integrally formed nut and screw are connected with each other. Wherein, the screw rod is hollow structure, and the first end of elastic component 3 is connected with the screw rod and places in the screw rod, and the screw rod cover is established in stock 1, screw rod and stock 1 threaded connection, and the nut passes through the screw rod to be fixed at the first end of stock 1.
In the detection process, firstly, the detection device is prepared for installation, the detection device is assembled, the structures such as the plug 2, the elastic part 3, the pull rope 4 and the like are installed and connected according to the mode of figure 1, and the pull rope 4 extends out of the tail part of the anchor rod 1. Drilling holes are drilled in the roadway surrounding rock according to the length and the diameter of the detection device, the anchoring agent is filled in the drilling holes, the detection device is pushed into the drilling holes, the anchoring agent is stirred to form a filling layer, and the detection device is fixed in the drilling holes through adjusting the tray and the nuts. Connect pull ring and toper stopper, make the stay cord pass pull ring and toper stopper, adjust the stay cord and fasten the position, make the stay cord between elastic component and the toper stopper keep the state of flare-outing, but should not tension to reach the elastic limit of elastic component. And (3) stretching the pull ring by using the index finger or the middle finger, and if the pull ring cannot be pulled out, as shown in fig. 4, indicating that the detection device is sheared and damaged and the roadway surrounding rock is sheared, slipped and deformed. And (3) stretching the pull ring by using the index finger or the middle finger, and if the pull ring can be pulled out, as shown in fig. 3, indicating that the detection device is not sheared and damaged and the roadway surrounding rock is not sheared, slipped and deformed.
The invention also provides a method for detecting the slippage and deformation of the surrounding rock of the roadway, which adopts a detection device for detection, and as shown in figure 1, the detection device comprises: anchor rod 1, end cap 2, elastic component 3 and stay cord 4. Anchor rod 1 is hollow structure, and 1 cover of anchor rod is established outside stay cord 4 and elastic component 3, and the first end of anchor rod 1 is connected with end cap 2, and the first end and the end cap 2 of elastic component 3 are connected, and the second end and the stay cord 4 of elastic component 3 are connected, and stay cord 4 extends to the second end of anchor rod 1 along the cavity of anchor rod 1.
As shown in fig. 5, the detection method includes the following steps:
step S1: drilling holes are drilled in the roadway surrounding rock according to the length and the diameter of the detection device, the anchoring agent is filled in the drilling holes, the detection device is pushed into the drilling holes, the anchoring agent is stirred to form a filling layer, and the detection device is fixed in the drilling holes through adjusting the tray and the nuts.
Step S2: and the pull ring and the conical plug are connected, so that the pull rope passes through the pull ring and the conical plug, the fastened position of the pull rope is adjusted, and the pull rope between the elastic part and the conical plug is kept in a straightening state.
Step S3: and stretching the pull ring to confirm that the pull rope cannot be pulled out, and knowing that the detection device is sheared and damaged and the surrounding rock of the roadway is sheared, slid and deformed.
Wherein, the step of step S3 further includes: step S4: confirm that the stay cord can be pulled out, know that detection device does not take place to cut and destroy, tunnel country rock does not take place to cut the deformation that slides.
Specifically, in the detection process, firstly, preparation for installation of the detection device is carried out, the detection device is assembled, the structures such as the plug 2, the elastic piece 3 and the pull rope 4 are installed and connected according to the mode of figure 1, and the pull rope 4 extends out of the tail part of the anchor rod 1. Drilling holes are drilled in the roadway surrounding rock according to the length and the diameter of the detection device, the anchoring agent is filled in the drilling holes, the detection device is pushed into the drilling holes, the anchoring agent is stirred to form a filling layer, and the detection device is fixed in the drilling holes through adjusting the tray and the nuts. Connect pull ring and toper stopper, make the stay cord pass pull ring and toper stopper, adjust the stay cord and fasten the position, make the stay cord between elastic component and the toper stopper keep the state of flare-outing, but should not tension to reach the elastic limit of elastic component. And (3) stretching the pull ring by using the index finger or the middle finger, and if the pull ring cannot be pulled out, as shown in fig. 4, indicating that the detection device is sheared and damaged and the roadway surrounding rock is sheared, slipped and deformed. And (3) stretching the pull ring by using the index finger or the middle finger, and if the pull ring can be pulled out, as shown in fig. 3, indicating that the detection device is not sheared and damaged and the roadway surrounding rock is not sheared, slipped and deformed.
In summary, the invention provides a method for detecting slippage deformation of surrounding rocks of a roadway, which is characterized in that a pull rope and an elastic part are arranged in a hollow anchor rod, a plug and the elastic part are adopted to connect the pull rope, the pull rope extends to the second end of the anchor rod along a cavity of the anchor rod, whether the detection device is subjected to shear failure is judged according to whether the pull rope can freely stretch out and draw back, and then whether the surrounding rocks of the roadway are subjected to shear deformation is deduced, so that the detection of the surrounding rocks of the roadway is realized, and the stability of the roadway is maintained more effectively.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
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 (8)
1. The utility model provides a detection device that tunnel country rock slides and warp which characterized in that includes:
the anchor rod, the pull rope, the pull ring, the conical plug, the plug and the elastic piece;
the anchor rod is of a hollow structure, the anchor rod is sleeved outside the pull rope and the elastic part, the first end of the anchor rod is connected with the plug, the first end of the elastic part is connected with the plug, the second end of the elastic part is connected with the pull rope, and the pull rope extends to the second end of the anchor rod along the cavity of the anchor rod; the small-diameter end of the conical plug is embedded into the second end of the anchor rod, and the conical plug is connected with the pull rope; the pull ring is arranged at the large-diameter end of the conical plug; the pull rope penetrates through the conical plug and the pull ring, and the pull rope is fixed on the pull ring and the conical plug by screwing the pull ring.
2. The probe apparatus of claim 1, further comprising: a tray and a nut; the tray with the nut all overlaps and establishes on the stock.
3. The probe apparatus of claim 1, wherein the plug comprises: the screw cap and the screw rod are connected with each other and integrally formed;
the bolt is of a hollow structure, the first end of the elastic piece is connected with the nut and is arranged in the bolt, the bolt is sleeved in the anchor rod, and the nut is fixed at the first end of the anchor rod through the bolt.
4. The sonde of claim 1, wherein the pull cord is a steel wire or a galvanized wire.
5. A probe device according to claim 1, wherein the anchor is a glass reinforced plastic anchor.
6. The probe apparatus of claim 1, further comprising:
a filling layer; the filling layer is arranged outside the anchor rod, and the anchor rod is fixed in the surrounding rock of the roadway through the filling layer.
7. A method for detecting the slippage deformation of surrounding rocks of a roadway, which is characterized in that the method for detecting the slippage deformation of the surrounding rocks of the roadway adopts a detection device as claimed in any one of claims 1 to 6, and comprises the following steps:
step S1: drilling holes in the surrounding rock of the roadway according to the length and the diameter of the detection device, plugging in an anchoring agent, pushing the detection device into the drilled holes, stirring the anchoring agent to form a filling layer, and fixing the detection device in the drilled holes by adjusting the tray and the nuts;
step S2: connecting the pull ring and the conical plug, enabling the pull rope to penetrate through the pull ring and the conical plug, adjusting the fastened position of the pull rope, and enabling the pull rope between the elastic part and the conical plug to keep a straightening state;
step S3: and stretching the pull ring to confirm that the pull rope cannot be pulled out, and knowing that the detection device is sheared and damaged and the surrounding rock of the roadway is sheared, slid and deformed.
8. The method for detecting drift deformation of roadway surrounding rocks according to claim 7, wherein the step of the step S3 further comprises:
step S4: confirm that the stay cord can be pulled out, know that detection device does not take place to cut and destroy, tunnel country rock does not take place to cut the deformation that slides.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910536669.5A CN110274567B (en) | 2019-06-20 | 2019-06-20 | Detection device and detection method for roadway surrounding rock slippage deformation |
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| CN201910536669.5A CN110274567B (en) | 2019-06-20 | 2019-06-20 | Detection device and detection method for roadway surrounding rock slippage deformation |
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| CN110274567A CN110274567A (en) | 2019-09-24 |
| CN110274567B true CN110274567B (en) | 2021-03-12 |
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Families Citing this family (2)
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| CN111220086A (en) * | 2020-01-19 | 2020-06-02 | 扎赉诺尔煤业有限责任公司 | Method for monitoring roadway surrounding rock deformation based on three-dimensional laser scanning |
| CN116697997B (en) * | 2023-08-07 | 2023-09-29 | 深圳市交通公用设施建设中心 | Real-time monitoring system and method for deformation of building envelope |
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