Highland rock mass stress directional monitoring device

Abstract

The utility model provides high ground rock mass stress directional monitoring device relates to rock mass stress monitoring field, including fixed subassembly and adjusting assembly, fixed subassembly includes stress meter body and first locking piece, and first locking piece can be detachably fixed in stress meter body, adjusting assembly includes fixed link, level, positioning pipe, anchor and second locking piece, and level fixed connection is in fixed link, anchor is inserted in positioning pipe for with positioning pipe is fixed in rock mass. Through setting fixed subassembly and adjusting assembly, can quick fixed connection adjusting assembly and stress meter body, through setting fixed link, bubble level, elastic part, sliding sleeve and positioning pipe, can conveniently and quickly adjust stress meter body inserts in rock hole angle, and carries out fixed, in the time of waiting coupling agent solidification, guarantees that stress meter body's position angle does not change, improves the accuracy of subsequent stress directional monitoring.

Description

Technical Field

[0001] This utility model relates to the field of rock mass stress monitoring, and in particular to a high-altitude rock mass stress directional monitoring device. Background Technology

[0002] Natural stresses existing in strata undisturbed by engineering projects are called in-situ stresses, also known as initial stresses or geostress. They mainly include the self-weight stress caused by the weight of the overlying strata and the tectonic stress caused by geological processes. The magnitude of geostress is a fundamental parameter for coal mining, support design, rockburst prevention, and the prevention of coal and gas outbursts. Testing and assessing the stress in coal and rock masses is a key aspect of mine pressure monitoring and is the fundamental force causing deformation and even failure in mining engineering, water conservancy and hydropower projects, railways, highways, and geotechnical excavation projects. Accurate measurement of geostress is a necessary prerequisite for stability analysis of surface and underground geotechnical engineering projects and for achieving relevant geotechnical engineering designs and scientific decision-making.

[0003] Currently, stress gauges are mainly used for stress orientation monitoring of highland rock masses. The installation of stress gauges involves first drilling holes in the rock mass, then inserting the stress gauge, and finally injecting a coupling agent (such as epoxy resin mortar) to ensure that the sensor fits tightly against the rock mass. After waiting for the coupling agent to cure, the installation position of the stress gauge is prone to displacement during the curing period, which leads to errors in the stress gauge orientation monitoring results and reduces reliability. Utility Model Content

[0004] This invention provides a stress orientation monitoring device for high-altitude rock masses to solve the problem of monitoring errors caused by stress gauge displacement in existing technologies. This utility model provides a high-altitude rock mass stress orientation monitoring device, including a fixing component and an adjustment component; The fixing component includes a stress gauge body and a first locking member, the first locking member being detachably fixed to the stress gauge body; The adjustment assembly includes a fixed rod, a level, a positioning tube, an anchor, and a second locking element; One end of the fixing rod is fixedly connected to the first locking member, and the other end of the fixing rod is rotatably connected to the positioning tube; The second locking element is movably connected to the fixing rod and is used to restrict the relative rotation between the fixing rod and the positioning tube; The level is fixedly connected to the fixed rod; The anchor is inserted into the positioning tube to fix the positioning tube to the rock mass.

[0005] Furthermore, the first locking component includes a first clamp and a second clamp, with the stress gauge body located between the first clamp and the second clamp. A threaded post is rotatably connected to the first clamp, and the second clamp has a locking groove into which the threaded post rotates. A wing nut is threaded to one end of the threaded post extending out of the locking groove. The wing nut is used to pull the first clamp and the second clamp to press and fix them to the stress gauge body.

[0006] Furthermore, the first clamp and the second clamp are respectively provided with arc-shaped pressure grooves on opposite sides, and the stress gauge body is located between the two arc-shaped pressure grooves.

[0007] Furthermore, a threaded head is fixedly connected to the side wall of the fixed rod, and the level is threadedly connected to the threaded head.

[0008] Furthermore, the second locking element includes a sliding sleeve slidably connected to the fixed rod. A toothed ring is fixedly connected to the side of the positioning tube near the sliding sleeve, and a locking tooth is fixedly connected to the side of the sliding sleeve near the toothed ring. The locking tooth is used to engage with the toothed ring to restrict the relative rotation between the fixed rod and the positioning tube.

[0009] Furthermore, it also includes an elastic element, on which a support plate is fixedly connected, and the elastic element is disposed between the support plate and the sliding sleeve. The elastic element is used to push the sliding sleeve to slide closer to the positioning tube.

[0010] Furthermore, the elastic element is configured as a spring, which is sleeved on the fixed rod.

[0011] Furthermore, the side wall of the fixed rod is provided with a first limiting plane, and the sliding sleeve is provided with a second limiting plane. The first limiting plane and the second limiting plane fit together to restrict the relative rotation between the sliding sleeve and the fixed rod.

[0012] Furthermore, a rotating protrusion is fixedly connected to the end of the fixing rod, and a rotating hole is provided on one side of the positioning tube for the rotating protrusion to extend into. A limiting protrusion is detachably fixed to the inner wall of the rotating hole, and the rotating protrusion is located between the limiting protrusion and the bottom surface of the rotating hole.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a high-altitude rock mass stress orientation monitoring device. By setting a fixing component and an adjustment component, the adjustment component and the stress gauge body can be quickly and easily fixed and connected. By setting a fixing rod, a bubble level, an elastic element, a sliding sleeve, and a positioning tube, the angle at which the stress gauge body is inserted into the rock hole can be conveniently and quickly adjusted and fixed. During the time waiting for the coupling agent to cure, the position and angle of the stress gauge body remain unchanged, thereby improving the accuracy of subsequent stress orientation monitoring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the first locking member in an embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the connection relationship of the sliding sleeve in an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection relationship of the positioning tube in an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram showing the connection relationship between the fixing rod and the positioning tube in an embodiment of this utility model.

[0019] Figure 6 This is a schematic diagram showing the positional relationship between the first limiting plane and the second limiting plane in an embodiment of this utility model.

[0020] Figure 7 This is a schematic diagram showing the connection relationship between the gear ring and the locking teeth in an embodiment of this utility model.

[0021] Figure label: 1. Fixing component; 2. Stress gauge body; 3. First locking component; 31. First clamp; 311. Threaded post; 312. Wing nut; 32. Second clamp; 321. Locking groove; 33. Arc-shaped pressure groove; 4. Adjusting component; 41. Fixing rod; 411. Threaded head; 412. First limiting plane; 413. Rotating protrusion; 42. Level; 43. Positioning tube; 431. Gear ring; 432. Rotating hole; 44. Anchor nail; 5. Second locking component; 51. Sliding sleeve; 511. Locking tooth; 512. Second limiting plane; 52. Elastic component; 6. Support plate; 61. Tightening screw; 7. Limiting protrusion. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more of the features.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] The following is combined Figures 1-6 This invention describes a high-altitude rock mass stress orientation monitoring device, comprising a fixing component 1 and an adjusting component 4. The fixing component 1 includes a stress gauge body 2 and a first locking member 3, which is detachably fixed to the stress gauge body 2. The adjusting component 4 includes a fixing rod 41, a level 42, a positioning tube 43, an anchor 44, and a second locking member 5. One end of the fixing rod 41 is fixedly connected to the first locking member 3, and the other end of the fixing rod 41 is rotatably connected to the positioning tube 43. The second locking member 5 is movably connected to the fixing rod 41 to limit the relative rotation between the fixing rod 41 and the positioning tube 43. The level 42 is fixedly connected to the fixing rod 41. The anchor 44 is inserted into the positioning tube 43 to fix the positioning tube 43 to the rock mass.

[0026] Specifically, such as Figure 1 , Figure 5 As shown, the first locking element 3 is installed at the end of the stress gauge body 2, thereby achieving relative fixation between the adjusting component 4 and the stress gauge body 2. One end of the fixing rod 41 is fixed to the first locking element 3, and the other end of the fixing rod 41 is rotatably connected to the positioning tube 43. The positioning tube 43 is fixed to the rock mass by the anchor 44. The deflection angle of the stress gauge body 2 is displayed by installing a level 42 on the fixing rod 41. Rotating the fixing rod 41 on the positioning tube 43 causes the first locking element 3 and the stress gauge body 2 to rotate, thereby adjusting the angle of the stress gauge body 2.

[0027] When using the stress orientation monitoring device, the stress gauge body 2 is placed into the rock borehole, and the connecting rod is fixed to the end of the stress gauge body 2 extending out of the rock borehole by the first locking member 3. The anchor 44 passes through the positioning tube 43 and is hammered into the rock wall, thereby fixing the positioning tube 43 to the rock wall and providing a fulcrum for the rotation of the fixing rod 41 and the stress gauge body 2. The level 42 is installed on the fixing rod 41, and the level 42 can be set as a bubble level 42. By observing the level 42 on the fixing rod 41, the fixing rod 41 is rotated to the designed orientation. Then, the fixing rod 41 and the positioning tube 43 are locked by the second locking member 5. After the rotation of the fixing rod 41 is locked, coupling agent is injected into the rock borehole and left to cure. During the curing period, the fixing rod 41 and the positioning tube 43 support and fix the stress gauge body 2, ensuring that the position and angle of the stress gauge body 2 remain unchanged, thus improving the accuracy of subsequent stress orientation monitoring. On the other hand, when the angle of the stress gauge body 2 deviates during the curing period, it can be fed back in real time by the level 42, which is convenient for the operator to make timely adjustments and corrections.

[0028] Furthermore, the first locking component 3 includes a first clamp 31 and a second clamp 32, with the stress gauge body 2 located between the first clamp 31 and the second clamp 32. A threaded post 311 is rotatably connected to the first clamp 31, and the second clamp 32 has a locking groove 321 into which the threaded post 311 rotates. A wing nut 312 is threadedly connected to one end of the threaded post 311 extending out of the locking groove 321. The wing nut 312 is used to pull the first clamp 31 and the second clamp 32 to press and fix them onto the stress gauge body 2.

[0029] Specifically, such as Figure 1 , Figure 2 As shown, the adjustment assembly 4 has two sets, and the fixing rods 41 on the two sets of connecting assemblies are fixedly connected to the first clamp 31 and the second clamp 32 respectively. Specifically, the two fixing rods 41 can be fixed to the first clamp 31 and the second clamp 32 respectively by welding or threaded connection. The two ends of the first clamp 31 are respectively rotatably connected to threaded posts 311, and the two ends of the second clamp 32 are respectively provided with locking grooves 321. When fixing the first locking member 3 to the stress gauge body 2, the end of the stress gauge body 2 is inserted between the first clamp 31 and the second clamp 32, so that the first clamp 31 and the second clamp 32 surround the stress gauge body 2. The threaded posts 311 are flipped so that they enter the locking grooves 321. The wing nut 312 is tightened so that the first clamp 31 and the second clamp 32 tightly hug the stress gauge body 2, realizing the detachable fixing of the first locking member 3 to the stress gauge body 2.

[0030] Furthermore, arc-shaped pressure grooves 33 are respectively formed on the opposite sides of the first clamp 31 and the second clamp 32, and the stress gauge body 2 is located between the two arc-shaped pressure grooves 33. The design of the arc-shaped pressure grooves 33 increases the contact area between the first clamp 31 and the second clamp 32 and the stress gauge body 2, thereby increasing the static friction between the first clamp 31 and the second clamp 32 and the stress gauge body 2, and improving the fixing effect. In some optional embodiments, rubber pads can be pre-placed in the two arc-shaped pressure grooves 33 to further improve the fixing effect.

[0031] Furthermore, a threaded head 411 is fixedly connected to the side wall of the fixed rod 41, and the level 42 is threadedly connected to the threaded head 411.

[0032] Specifically, such as Figure 3 As shown, the threaded head 411 is fixedly connected to the fixed rod 41 by a threaded connection, and the level 42 is connected to the threaded head 411 by a thread, so as to realize the quick positioning and installation of the level 42.

[0033] Furthermore, the second locking member 5 includes a sliding sleeve 51, which is slidably connected to the fixed rod 41. A toothed ring 431 is fixedly connected to the side of the positioning tube 43 near the sliding sleeve 51. A locking tooth 511 is fixedly connected to the side of the sliding sleeve 51 near the toothed ring 431. The locking tooth 511 is used to engage with the toothed ring 431 to limit the relative rotation between the fixed rod 41 and the positioning tube 43.

[0034] Specifically, in one alternative embodiment, such as Figure 4 , Figure 5 As shown, the sliding sleeve 51 is fitted onto the fixed rod 41, the gear ring 431 is an annular internal gear ring 431 and fixed to the side wall of the positioning tube 43, and the locking tooth 511 is a gear structure and fixed to the end of the sliding sleeve 51 facing the gear ring 431. After the fixed rod 41 is rotated and the angle is adjusted, the sliding sleeve 51 is pushed towards the positioning tube 43 so that the locking tooth 511 at the front end of the sliding sleeve 51 is engaged with the gear ring 431 of the positioning tube 43, thereby achieving relative fixation between the fixed rod 41 and the positioning tube 43.

[0035] Specifically, in another alternative embodiment, such as Figure 7 As shown, both the gear ring 431 and the locking tooth 511 are configured as end gear disc structures. The gear ring 431 and the locking tooth 511 are arranged facing each other, pushing the sliding sleeve 51 towards the positioning tube 43 so that the locking tooth 511 at the front end of the sliding sleeve 51 is engaged with the gear ring 431 of the positioning tube 43, thereby achieving relative fixation between the fixing rod 41 and the positioning tube 43.

[0036] Furthermore, it also includes an elastic element 52. A support plate 6 is fixedly connected to the fixed rod 41. The elastic element 52 is disposed between the support plate 6 and the sliding sleeve 51. The elastic element 52 is used to push the sliding sleeve 51 to slide closer to the positioning tube 43.

[0037] Furthermore, the elastic element 52 is configured as a spring, which is sleeved on the fixed rod 41.

[0038] Specifically, such as Figure 5 As shown, the support plate 6 is configured as a ring structure and is sleeved on the fixed rod 41. A tightening screw 61 is threaded onto the support plate 6, which tightens against the outer wall of the fixed rod 41, thus achieving a fixed connection between the support plate 6 and the fixed rod 41. The elastic element 52 is configured as a spring and is sleeved on the fixed rod 41. The spring is located between the support plate 6 and the sliding sleeve 51. One end of the spring abuts against the support plate 6, and the other end abuts against the sliding sleeve 51. The spring is always in a compressed state, automatically pressing the sliding sleeve 51 against the gear ring 431. When readjustment is required, the sliding sleeve 51 can be manually pulled away from the gear ring 431 to unlock it.

[0039] Furthermore, the side wall of the fixed rod 41 is provided with a first limiting plane 412, and the sliding sleeve 51 is provided with a second limiting plane 512. The first limiting plane 412 and the second limiting plane 512 fit together to restrict the relative rotation between the sliding sleeve 51 and the fixed rod 41.

[0040] Specifically, such as Figure 5 , Figure 6 As shown, a first limiting plane 412 is provided on the side wall of the fixed rod 41 along the axial direction, and a second limiting plane 512 is machined into the inner hole of the sliding sleeve 51, which fits against the first limiting plane 412 of the fixed rod 41. This allows the sliding sleeve 51 to slide only axially and not rotate circumferentially around the fixed rod 41, further improving the stability when the fixed rod 41 and the positioning tube 43 are relatively fixed.

[0041] Furthermore, a rotating protrusion 413 is fixedly connected to the end of the fixing rod 41, and a rotating hole 432 is provided on one side of the positioning tube 43 for the rotating protrusion 413 to extend into. A limiting protrusion 7 is detachably fixed to the inner wall of the rotating hole 432, and the rotating protrusion 413 is located between the limiting protrusion 7 and the bottom surface of the rotating hole 432.

[0042] Specifically, such as Figure 6 As shown, the limiting protrusion 7 is configured as an annular structure, with external threads on the outer wall and internal threads on the inner wall of the rotating hole 432. When connecting the fixing rod 41 and the positioning tube 43, the limiting protrusion 7 is sleeved on the fixing rod 41, and the rotating protrusion 413 is inserted into the rotating hole 432 of the positioning tube 43. Then, the rotating protrusion 413 is fixed to the port of the rotating hole 432 by a threaded connection, thereby axially limiting the rotating protrusion 413. The fixing rod 41 can rotate 360° but will not come out of the rotating hole 432.

[0043] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-altitude rock mass stress orientation monitoring device, characterized in that: Includes fixed components and adjustable components; The fixing component includes a stress gauge body and a first locking member, the first locking member being detachably fixed to the stress gauge body; The adjustment assembly includes a fixed rod, a level, a positioning tube, an anchor, and a second locking element; One end of the fixing rod is fixedly connected to the first locking member, and the other end of the fixing rod is rotatably connected to the positioning tube; The second locking element is movably connected to the fixing rod and is used to restrict the relative rotation between the fixing rod and the positioning tube; The level is fixedly connected to the fixed rod; The anchor is inserted into the positioning tube to fix the positioning tube to the rock mass.

2. The highland rock mass stress orientation monitoring device according to claim 1, characterized in that: The first locking component includes a first clamp and a second clamp. The stress gauge body is located between the first clamp and the second clamp. A threaded post is rotatably connected to the first clamp. The second clamp has a locking groove into which the threaded post rotates. A wing nut is threaded to one end of the threaded post that extends out of the locking groove. The wing nut is used to pull the first clamp and the second clamp to press and fix them to the stress gauge body.

3. The high-altitude rock mass stress orientation monitoring device according to claim 2, characterized in that: The first clamp and the second clamp each have an arc-shaped pressure groove on their opposite sides, and the stress gauge body is located between the two arc-shaped pressure grooves.

4. The high-altitude rock mass stress orientation monitoring device according to claim 1, characterized in that: The fixed rod sidewall is fixedly connected to a threaded head, and the level is threadedly connected to the threaded head.

5. The high-altitude rock mass stress orientation monitoring device according to claim 1, characterized in that: The second locking component includes a sliding sleeve that is slidably connected to the fixed rod. A toothed ring is fixedly connected to the side of the positioning tube near the sliding sleeve, and a locking tooth is fixedly connected to the side of the sliding sleeve near the toothed ring. The locking tooth is used to engage with the toothed ring to restrict the relative rotation between the fixed rod and the positioning tube.

6. The high-altitude rock mass stress orientation monitoring device according to claim 5, characterized in that: It also includes an elastic element, on which a support plate is fixedly connected, and the elastic element is disposed between the support plate and the sliding sleeve. The elastic element is used to push the sliding sleeve to slide closer to the positioning tube.

7. The high-altitude rock mass stress orientation monitoring device according to claim 6, characterized in that: The elastic element is configured as a spring, and the spring is sleeved on the fixed rod.

8. The high-altitude rock mass stress orientation monitoring device according to claim 5, characterized in that: The side wall of the fixed rod is provided with a first limiting plane, and the sliding sleeve is provided with a second limiting plane. The first limiting plane and the second limiting plane fit together to restrict the relative rotation between the sliding sleeve and the fixed rod.

9. The high-altitude rock mass stress orientation monitoring device according to claim 1, characterized in that: The fixed rod end is fixedly connected to a rotating protrusion, and a rotating hole is opened on one side of the positioning tube for the rotating protrusion to extend into. A limiting protrusion is detachably fixed to the inner wall of the rotating hole, and the rotating protrusion is located between the limiting protrusion and the bottom surface of the rotating hole.

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