CN212079291U - But simple and easy device of inside displacement measurement of cyclic utilization's country rock - Google Patents
But simple and easy device of inside displacement measurement of cyclic utilization's country rock Download PDFInfo
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- CN212079291U CN212079291U CN201922355648.1U CN201922355648U CN212079291U CN 212079291 U CN212079291 U CN 212079291U CN 201922355648 U CN201922355648 U CN 201922355648U CN 212079291 U CN212079291 U CN 212079291U
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Abstract
The utility model relates to a but cyclic utilization's inside displacement of country rock measures simple and easy device, the device comprises position mount and safety cover. The point location fixing frame comprises a pin plate, a pin, a hoop, foot frames, a butt-bracing spring, a measuring rope, a contraction rope and a wire conveying pipe, wherein the pin and the foot frames are in one-to-one correspondence, each foot frame can only stretch out and draw back in the direction of the spring, clamping grooves are formed in the foot frames, the minimum distance of the clamping grooves is the diameter of the foot frame hoop, the contraction rope is led out from two ends of the diameter of the hoop, the contraction rope is combined into one and is tensile enough, and the contraction rope and the measuring rope are output out of a drill hole through; the protective cover is fixed on the primary support of the orifice, the surface of the protective cover contacting with the primary support is provided with a measuring rope guide hole and a contraction rope guide hole, the positions of four corners are fixed by expansion screws, the expansion screws can also be used as peripheral convergence points, and the cover plate is closed at ordinary times. The device simple structure effectively saves the inside displacement measurement cost of country rock, simplifies and buries the process underground, and the increase measuring range cooperates the convergence meter to use and can guarantee the precision, reduces the error.
Description
Technical Field
The utility model relates to a but cyclic utilization's inside displacement of country rock measures simple and easy device relates to one kind and carries out the control measuring device that the inside displacement of country rock was surveyed when underground works is under construction, can confirm drilling depth as required, and the device install position and quantity, belong to underground works construction safety monitoring field.
Background
The traffic industry has been vigorously developed to divert large quantities of traffic carriers into the ground. The deformation problem that faces around the hole rock migration and bring among the underground works construction process, here simultaneously, the body of a cave excavation also causes the disturbance effect to peripheral building, and the measurement of the inside displacement of surrounding rock is as a means of monitoring in the cause, through the deflection of monitoring different degree of depth department surrounding rock, can judge the not hard up influence circle scope of its excavation, has important meaning to mastering its interact.
The current measurement of the internal displacement of the surrounding rock is mainly obtained by field actual measurement and finite element software parameter inverse analysis, wherein the assumed condition of the finite element inverse analysis is over ideal and is suitable for theoretical analysis, and the analysis result is difficult to be applied to the actual engineering; by applying the sensor principle, a multifunctional tester needs to be matched, so that the disposable purchasing cost is high and the reuse is not realized; the measurement range is limited, and the applicability to soft rock caverns is low; when the device is used in a cavern constructed by a mining method, the influence of blasting vibration on a displacement transmission rod is large, so that the measurement error is increased, and the point can not be repaired after the sensor is damaged in the measurement period; in addition, the installation of the anchor head of the device and the protection of the sensor measuring line are complicated.
In view of the problems, the accuracy of the surrounding rock migration rule is influenced, so that the work of measuring the displacement inside the underground engineering surrounding rock is greatly discounted, and the great potential safety hazard exists in the engineering construction.
Disclosure of Invention
The technical task of the utility model is to solve the loaded down with trivial details problem of current instrument installation test, but provide a simple and easy device is measurationed to cyclic utilization's inside displacement of country rock, realize that the inside displacement measurement station location of underground works country rock is accurate, the device structure is simple and convenient, and the installation is measurationed swiftly, the result is reliable.
The utility model provides a technical scheme that this problem adopted is:
a simple device capable of recycling and measuring displacement inside surrounding rocks is structurally divided into a point location fixing frame and a protection cover. The point location fixing frame is composed of eight components of a pin plate, a pin, a hoop, foot frames, opposite supporting springs, a measuring rope, a contraction rope and a transmission line pipe, wherein the pin plate is provided with four pins which are relatively parallel and adjacent to each other and are vertical to each other, the pin plate is connected with the foot frames through the four pins, the middle of the pin plate is provided with a hole, the lower part of the pin plate is connected with the transmission line pipe, the end heads of the foot frames are provided with rough carved patterns which can increase the friction with the hole wall so that the fixing frame is firmly fixed at the corresponding position in the hole and can not slide relative to the hole wall under the measuring force, the hoop is a small-diameter circular ring which is arranged at the periphery of the four foot frames and can slide up and down along the foot frames, the foot frames are provided with grooves which can not be separated from the hoop when the device is recovered, the small holes are arranged at the two ends of a diameter of the hoop and, the Hooke coefficient of the spring is enough large, the range ensures that the opening distance of the foot stool is larger than the aperture of the drilled hole under the natural state, the two ends of the diameter of the lower end of the wire conveying pipe are provided with the measuring ropes, and the measuring ropes and the contraction ropes are converged into one strand and then output to the drilled hole through the next wire conveying pipe to the protective cover arranged on the primary support of the hole opening. The protective cover is fixed on a primary support of a drilling position through four angular point expansion screws, the whole protective cover consists of a cover plate and a box body, expansion screw holes are arranged at four angular positions of the contact surface of the box body and a hole wall, the cover plate is connected with a combined body through hinges, a measuring rope guide hole is formed in the center of the drilling hole on the contact surface of the box body and the primary support, a contraction rope guide hole is formed in one side of the contact surface of the box body and the primary support, the cover plate is in a closed state at ordinary times, the whole protective cover not only plays a role of protecting a device in the hole opening, placing the measuring rope and the contraction rope, but also can be used as measuring points for using the expansion screws with the fixing.
Further, the diameter of the ferrule involved is equal to the minimum distance to the kickstand.
Furthermore, the tail end of the related measuring rope is provided with a steel graduated scale with a closed loop measuring range of 12cm and measuring point marks.
Furthermore, the number of the related foot rests is four, and the opposite supporting springs are arranged at intervals.
Specifically, the related pin plate is cross-shaped, pins are arranged on the periphery of the pin plate, holes are formed in the middle of the pin plate, and the hole diameter of the pin plate is the same as the pipe diameter of the wire conveying pipe.
Specifically, the related contraction rope is a common steel strand, is composed of 7 strands of thin steel wires and has the diameter of 3 mm.
Specifically, a hook is welded on a nut of the expansion screw of the protection cover, and is set as a convergence measuring point.
The utility model relates to a but cyclic utilization's inside displacement of country rock is surveyed simple and easy device and is compared produced beneficial effect with current instrument and is:
the utility model discloses each component is connected portably, convenient and practical sets up through four foot rest intervals and to propping the spring, and the pin joint is passed through on the cotter board in the upper end, and the lower extreme is fixed at downthehole corresponding position, through measuring rope output drilling, measurations with the help of convergence meter and datum point, and the device structure is simple and convenient, and the installation is measurationed swiftly, the result is accurate reliable.
Drawings
FIG. 1 is a schematic view of the point location fixing frame of the present invention;
fig. 2 is a schematic view (top view) of the protective cover of the present invention;
fig. 3 is a schematic view (front view) of the protective cover of the present invention;
FIG. 4 is a schematic view of the end of the measuring cord of the present invention;
FIG. 5 is a measurement schematic diagram of the present invention;
FIG. 6 is a schematic diagram (I) of the practical application of the present invention;
FIG. 7 is a schematic diagram (II) of the practical application of the present invention;
the reference numerals in the figures denote:
1. a pin plate; 2. a pin; 3. a ferrule; 4. a groove; 5. a counter-bracing spring; 6. a transmission pipe; 7. measuring a rope; 8. retracting the cord; 9. a foot rest; 10. a contraction rope guide hole; 11. measuring a rope guide hole; 12. a box body; 13. a cover plate; 14. an expansion screw;
the specific implementation mode is as follows:
for better explanation of the present invention, the technical solution will now be further explained with reference to the specific embodiments and the drawings. Although the present invention has been described in connection with the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention.
The first embodiment is as follows:
as shown in the attached figure 1, the point location fixing frame is composed of eight components, namely a pin plate, pins, a hoop, foot rests, opposite supporting springs, a measuring rope, a contraction rope and a wire conveying pipe, wherein the pin plate is provided with four pins which are relatively parallel and adjacent to each other and are vertical, the pin plate is connected with the foot rests through 4 pins, the middle of the pin plate is provided with a hole, the lower part of the pin plate is connected with the wire conveying pipe, the end of the foot rests are provided with rough sculptures which can increase the friction with the hole wall so that the fixing frame is firmly fixed at the corresponding position in the hole and can not slide relative to the hole wall under the measuring force, the hoop is a small-diameter circular ring and is arranged at the periphery of the four foot rests and can slide up and down along the foot rests, the foot rests are provided with grooves which can not be separated from the hoop when the device is recovered, the hoop is provided with small holes at two ends of a diameter and penetrates through the contraction rope, the bearable coefficient of the spring is enough large, the open distance of the foot rest is larger than the aperture of the drilled hole under the natural state of the range, the two ends of the diameter of the lower end of the wire conveying pipe are provided with the measuring ropes, and the measuring ropes and the contraction ropes are converged into one strand and then output to the drilled hole through the next wire conveying pipe to the protective cover arranged on the primary support of the hole opening.
Example two:
as shown in attached figures 2 and 3, the protective cover is fixed on a primary support at the position of a drilling hole through four angular point expansion screws, the whole protective cover consists of a cover plate and a box body, a measuring rope guide hole is formed in the center of the drilling hole on the contact surface of the box body and the primary support, a contraction rope guide hole is formed in one side of the box body, the cover plate is in a closed state at ordinary times, the whole protective cover plays a role of protecting a device in the hole opening, placing the measuring rope and the contraction rope, and can also serve as measuring points for peripheral convergence of a necessary measuring item by utilizing the expansion screws with the fixing function, and the number of the measuring points of the.
Example three:
as shown in fig. 4, when the borehole is deep enough or the deepest point location can be considered to be in a stable state after several measurements, the measuring ropes at different point locations are straightened, and the displacement of different point locations is estimated by comparing the values of the scale, so that the internal measurement of the device can be realized without the help of the cooperation of the datum point and the convergence meter.
Example four:
as shown in figure 5, a cross section is selected in the cavern and drilled to the designed depth as required, a point location fixing frame is arranged at the corresponding depth, and the corresponding number is B1，B2，B3And the measuring point in the protective cover is B0A reference point A is arranged at the opposite side, and AB is measured by a convergence meter0，AB1，AB2，AB3The variation of (A) is corrected by the absolute displacement of the reference point to obtain B0，B1，B2，B3The amount of displacement at the location. If the measured depth gauge is stable or the borehole is deep enough,this point can be considered as a stable point, and the displacement amount of the other point can be estimated approximately by comparing the scales of the gauge line.
Example five:
as shown in the attached figure 6, firstly drilling to the designed depth, then compressing the foot rest of the point location fixing frame to the aperture distance, moving to the corresponding depth position through the ejector rod with the scale depth mark, pulling the measuring rope to enable the tail end of the foot rest to be ejected to the aperture wall position to be kept still, and finishing the installation of the point location fixing frame; before installing the next point location fixing frame, point location marks are respectively made on the previous measuring rope and the previous contraction rope, and a second measuring rope and a second contraction rope are installed through the line conveying pipes according to the installation steps of the first point location fixing frame; and installing enough point position fixing frames to corresponding positions in sequence. And finally, installing a protective cover, before fixing the protective cover, respectively leading out the measuring rope and the contraction rope in corresponding holes in strands, connecting an upper closed ring after leading out, fixing the protective cover on the primary support through an expansion screw, marking corresponding measuring information on the outer side of the cover plate, and collecting an initial value through a digital display type convergence meter after the hole site is installed.
Example six:
as shown in the attached drawing 7, firstly, the expansion screw of the protection cover is screwed off, the protection cover is taken down, then the ejector rod extends into the first point location fixing frame to a depth, the line delivery pipe is pushed, the point location fixing frame moves towards the inside of the hole, the contraction rope is pulled towards the outside of the hole at the moment, the hoop slides to contract the foot rest to compress the spring, the hoop slides into the groove, the point location fixing frame is dragged by the ejector rod to slowly move out of the hole, other point location fixing frames are taken out in sequence, the recovery is completed, and the next hole location is.
While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this description, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as described herein.
Moreover, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The disclosure of the present invention is intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
Claims (7)
1. A simple device for measuring displacement in recyclable surrounding rock structurally comprises a point location fixing frame and a protective cover, and is characterized in that the point location fixing frame is composed of eight components, namely a pin plate, pins, a hoop, foot frames, a butt-bracing spring, a measuring rope, a contraction rope and a wire conveying pipe, wherein the pin plate is connected with the foot frames through the four pins; the protective cover is fixed on a primary support of a drilling hole opening through four angular point expansion screws and consists of a cover plate and a box body, expansion screw holes are arranged at four angular positions of a contact surface of the box body and a hole wall, a measuring rope guide hole is formed in the center of the drilling hole on the contact surface of the box body and the primary support, a contraction rope guide hole is formed in one side of the measuring rope guide hole, the cover plate is connected with a combined body through a hinge, and the cover plate is in a closed state at ordinary times.
2. The apparatus as claimed in claim 1, wherein the diameter of the hoop is equal to the minimum distance between the supporting legs.
3. The recyclable simple device for measuring the internal displacement of the surrounding rock as claimed in claim 1, wherein the tail end of the measuring rope is a steel graduated scale with a closed loop measuring range of 12cm and measuring point marks.
4. The apparatus as claimed in claim 1, wherein the number of the leg frames is four, the opposing springs are spaced apart from each other, and the opening distance of the leg frames is greater than the hole diameter of the hole in a natural state.
5. The apparatus as claimed in claim 1, wherein the pin plate is cross-shaped, and has pins at its periphery and holes at its middle part, and the diameter of the holes is the same as that of the pipe.
6. The recyclable simple device for measuring the internal displacement of the surrounding rock as claimed in claim 1, wherein the contraction rope is a common steel strand, is composed of 7 strands of thin steel wires, and has a diameter of 3 mm.
7. The apparatus as claimed in claim 1, wherein the nut of the expansion screw of the protection cover is welded with a hook to form a convergence point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922355648.1U CN212079291U (en) | 2019-12-25 | 2019-12-25 | But simple and easy device of inside displacement measurement of cyclic utilization's country rock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922355648.1U CN212079291U (en) | 2019-12-25 | 2019-12-25 | But simple and easy device of inside displacement measurement of cyclic utilization's country rock |
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| CN212079291U true CN212079291U (en) | 2020-12-04 |
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| CN201922355648.1U Active CN212079291U (en) | 2019-12-25 | 2019-12-25 | But simple and easy device of inside displacement measurement of cyclic utilization's country rock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034610A (en) * | 2021-11-08 | 2022-02-11 | 中国电建集团成都勘测设计研究院有限公司 | Rock mass block degree measuring device suitable for high and steep side slope |
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2019
- 2019-12-25 CN CN201922355648.1U patent/CN212079291U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034610A (en) * | 2021-11-08 | 2022-02-11 | 中国电建集团成都勘测设计研究院有限公司 | Rock mass block degree measuring device suitable for high and steep side slope |
| CN114034610B (en) * | 2021-11-08 | 2023-09-26 | 中国电建集团成都勘测设计研究院有限公司 | Rock mass block degree measuring device suitable for high steep side slope |
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