A geotechnical engineering investigation safety monitoring device and its use method

Abstract

The present invention discloses a safety monitoring device for geotechnical engineering investigation, comprising a drilling rig and a monitoring column, wherein the drill bit of the drilling rig is located above the monitoring column, the drill bit is plugged into the top of the monitoring column, a locking screw is transversely penetrated through the top of the monitoring column, the locking screw penetrates the bottom of the drill bit, and the locking screw is threadedly connected with the drill bit and the monitoring column respectively; a groove is provided in the middle of the monitoring column, the groove is circumferentially arranged around the monitoring column, and monitoring mechanisms are installed on both sides of the groove. The present invention can monitor internal displacement, settlement and other phenomena by drilling the device into the soil, which is not only convenient to use but also portable, and the pressure sensor sends soil internal pressure data to the staff in real time, and when displacement, settlement and other phenomena occur, the pressure data sent by the pressure sensor changes, so that the displacement, settlement and other phenomena are monitored.

Description

Technical Field

[0001] The present invention relates to the field of monitoring equipment, and in particular to a geotechnical engineering investigation safety monitoring equipment and a use method thereof. Background Art

[0002] In the field of geotechnical engineering, monitoring equipment is often buried at construction sites to record and monitor displacement, settlement and other phenomena inside structures such as earth slopes and embankments, so as to grasp the internal changes of the structures in real time and play a role in safety investigation.

[0003] For example, the patent with application number 202220900087.8 discloses a geotechnical engineering investigation safety monitoring device, which relates to the field of geotechnical engineering investigation technology, specifically geotechnical engineering investigation safety monitoring device, including a bottom support plate, a protective box is fixedly connected to the upper surface of the bottom support plate, a protective groove is provided on the front of the protective box, a vibrating string reader is provided inside the protective groove, and a storage groove is provided on the side of the protective box above the protective groove, a winding shaft is fixedly connected to the side wall of the inner surface of the storage groove, and a cable is wound on the outer surface of the winding shaft. The geotechnical engineering investigation safety monitoring device, through the coordinated arrangement of the mounting plate, the guide shaft, the abutment plate and the limit mechanism, can adjust the distance between the mounting plate and the abutment plate according to the convexity or concave condition of the ground around the anchor hole during use, thereby adjusting the depth of the measuring rod and the anchor rod inserted into the anchor hole, thereby ensuring that the measuring rod can be inserted to a suitable depth and ensuring the accuracy of the detection.

[0004] The patent with application number 202321251849.7 discloses a geotechnical engineering safety monitoring device, and its technical solution includes a first sleeve and a second sleeve, a front end cover is installed at one end of the first sleeve, a rear end cover is threadedly installed at one end of the second sleeve, a wireless transmitter and a pressure sensor are installed in the first sleeve, a pressure probe is installed at one end of the pressure sensor, a plurality of rubber pressure balls are installed on the pressure probe, a plurality of rubber tubes are movably installed inside the second sleeve, and a pressure rod is installed on the outer wall of each rubber tube. The beneficial effect of the utility model is that if the rock and soil at the embedded hole collapses, the collapsed rock and soil will squeeze the pressure rod, and the pressure sensor can monitor this part of the pressure, and the monitoring signal is sent to the background terminal through the wireless transmitter, so as to facilitate the continuous monitoring of the looseness of the rock and soil of the mountain structure, and replace the traditional sampling and detection method, which effectively improves the accuracy of the monitoring results.

[0005] The patent with application number 202121118651.2 discloses a horizontal displacement device for geotechnical engineering safety monitoring, which belongs to the field of geotechnical engineering technology. The key points of its technical solution include a base, the top of the base is connected to a connecting cable, and the bottom end of the base is installed with a protective tube, the inside of the protective tube is connected to a measuring rod joint, and one side of the measuring rod joint is connected to a measuring rod. In the utility model, under the action of the protective mechanism, the protective plate is supported and protected on the outer wall of the measuring rod, which effectively protects the working quality of the measuring rod and is conducive to extending the service life of the measuring rod. During monitoring, the protective plate slides on one side of the protective tube through a slide groove and a slider, so that the protective plate is extended and retracted with the measuring rod, ensuring the accuracy of the displacement monitoring of the device. At the same time, by fixing the connecting plate on one side of the protective plate, under the elastic action of the first reset spring, the protective plate has a point of support force to ensure the stability of the protective plate.

[0006] However, the above monitoring equipment and similar monitoring equipment have the following problems: first, the structure is complex and the cost is high; second, the size is large and it is not convenient to carry and install, and improvements need to be made. Summary of the invention

[0007] The purpose of the present invention is to provide a geotechnical engineering investigation safety monitoring device and a method of using the same to solve the above technical problems.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A geotechnical engineering investigation safety monitoring device comprises a drilling rig and a monitoring column, wherein the drill bit of the drilling rig is located above the monitoring column, the drill bit is plugged into the top of the monitoring column, a locking screw is transversely penetrated through the top of the monitoring column, the locking screw penetrates the bottom of the drill bit, and the locking screw is threadedly connected to the drill bit and the monitoring column respectively; a groove is opened in the middle of the monitoring column, the groove is circumferentially arranged around the monitoring column, and monitoring mechanisms are installed on both the left and right sides of the groove.

[0010] Preferably, the monitoring mechanism includes a monitoring tube, which is located in the groove. A sealing cover is provided on the top of the monitoring tube. The monitoring tube is threadedly connected to the sealing cover. A plurality of through holes are provided on a side of the monitoring tube away from the monitoring column. A plurality of pressure sensors are installed on a side of the monitoring tube close to the monitoring column.

[0011] Preferably, a limit block is provided at the bottom of the monitoring tube, the bottom of the limit block is flush with the bottom of the monitoring tube, and the limit block is connected to the bottom edge of the groove via a hinge.

[0012] Preferably, a water-absorbing sponge is provided inside the monitoring tube, a piston is provided below the water-absorbing sponge, the piston is slidably connected to the inner wall of the monitoring tube, a connecting rope is provided through the center of the water-absorbing sponge, the connecting rope is slidably connected to the water-absorbing sponge, the lower end of the connecting rope is fixedly connected to the piston, the top of the connecting rope passes through a sealing cover, the connecting rope is slidably connected to the sealing cover, and the top of the connecting rope is fixedly connected to the monitoring column.

[0013] Preferably, slide grooves are provided on both left and right sides of the groove, the slide grooves are vertically arranged, a spring is provided at the bottom of the slide groove, one end of the spring is fixedly connected to the slide groove, and the other end of the spring is fixedly connected to the monitoring tube.

[0014] Preferably, a sliding block is provided inside the sliding groove, and the sliding block is slidably connected to the sliding groove.

[0015] Preferably, first guide grooves are provided on both the front and rear sides of the slide groove, a guide block is provided in the first guide groove, the guide block is slidably connected to the first guide groove, and the guide block is fixedly connected to the slide block.

[0016] Preferably, a driving rod is provided on one side of the slider, the upper end of the driving rod is fixedly connected to the slider, and the lower end of the driving rod is connected to the connecting block through a lower hinge. A second guide groove is opened on the side of the monitoring tube, the second guide groove is vertically arranged, and the connecting block is slidably connected in the second guide groove.

[0017] Preferably, the second guide groove is a dovetail groove, and the connecting block is dovetail-shaped;

[0018] A method for using a geotechnical engineering investigation safety monitoring device comprises the following steps:

[0019] S1, after the monitoring column is inserted into the soil, the monitoring tube is driven to rotate slowly outward along the hinge under the elastic force of the spring; when the limit block abuts against the monitoring column, the monitoring tube stops rotating;

[0020] S2, at this time, the pressure sensor is located at the top of the monitoring tube and is covered by soil. The pressure sensor sends the internal soil pressure data to the staff in real time. When displacement, settlement and other phenomena occur, the pressure data sent by the pressure sensor changes, so that the displacement, settlement and other phenomena are monitored.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention can monitor internal displacement, settlement and other phenomena by drilling the device into the soil. It is not only easy to use but also portable. The pressure sensor sends the internal pressure data of the soil to the staff in real time. When displacement, settlement and other phenomena occur, the pressure data sent by the pressure sensor changes, so that the displacement, settlement and other phenomena are monitored.

[0023] 2. The device has a simple and compact structure, low cost, and is easy to promote and use on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a geotechnical engineering investigation safety monitoring device and a method of using the same according to the present invention;

[0025] Figure 2 The present invention is a geotechnical engineering investigation safety monitoring device and its use method Figure 1 A magnified schematic diagram of part A;

[0026] Figure 3 It is a structural schematic diagram of a monitoring mechanism of a geotechnical engineering investigation safety monitoring device and a method for using the same according to the present invention;

[0027] Figure 4 The present invention is a geotechnical engineering investigation safety monitoring device and its use method Figure 3 A magnified schematic diagram of part B;

[0028] Figure 5 The present invention is a geotechnical engineering investigation safety monitoring device and its use method Figure 3 An enlarged schematic diagram of the C portion;

[0029] Figure numerals: 1. drill bit; 2. locking screw; 3. monitoring column; 4. groove; 5. pressure sensor; 6. spring; 7. limit block; 8. through hole; 9. monitoring tube; 10. sealing cover; 11. connecting rope; 12. driving rod; 13. water-absorbing sponge; 14. piston; 15. limit spring; 16. guide block; 17. slider; 19. connecting block; 20. lower hinge; 22. hinge; 23. slide groove. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] like Figure 1-5 As shown, a geotechnical engineering investigation safety monitoring equipment includes a drilling rig and a monitoring column 3, the drill bit 1 of the drilling rig is located above the monitoring column 3, the drill bit 1 is inserted into the top of the monitoring column 3, a locking screw 2 is horizontally penetrated through the top of the monitoring column 3, the locking screw 2 penetrates the bottom of the drill bit 1, and the locking screw 2 is threadedly connected with the drill bit 1 and the monitoring column 3 respectively; a groove 4 is opened in the middle of the monitoring column 3, the groove 4 is circumferentially arranged around the monitoring column 3, and monitoring mechanisms are installed on both sides of the left and right sides of the groove 4.

[0035] When in use, insert the drill bit 1 into the top of the monitoring column 3, then use the locking screw 2 to connect the drill bit 1 and the monitoring column 3 together, start the drilling rig, and the drilling rig can drive the monitoring column 3 to rotate, align the bottom of the monitoring column 3 with the ground, and the monitoring column 3 can be inserted into the soil.

[0036] Example 2

[0037] like Figure 1-5 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that the monitoring mechanism includes a monitoring tube 9, the monitoring tube 9 is located in the groove 4, a sealing cover 10 is arranged on the top of the monitoring tube 9, the monitoring tube 9 is threadedly connected to the sealing cover 10, a plurality of through holes 8 are opened on the side of the monitoring tube 9 away from the monitoring column 3, and a plurality of pressure sensors 5 are installed on the side of the monitoring tube 9 close to the monitoring column 3.

[0038] A limit block 7 is provided at the bottom of the monitoring tube 9, and the bottom of the limit block 7 is flush with the bottom of the monitoring tube 9. The limit block 7 is connected to the bottom edge of the groove 4 through a hinge 22. A water-absorbing sponge 13 is provided inside the monitoring tube 9, and a piston 14 is provided below the water-absorbing sponge 13. The piston 14 is slidably connected to the inner wall of the monitoring tube 9. A connecting rope 11 is provided through the center of the water-absorbing sponge 13, and the connecting rope 11 is slidably connected to the water-absorbing sponge 13. The lower end of the connecting rope 11 is fixedly connected to the piston 14. The top of the connecting rope 11 passes through the sealing cover 10, and the connecting rope 11 is slidably connected to the sealing cover 10. The top of the connecting rope 11 is fixedly connected to the monitoring column 3. Slide grooves 23 are provided on both sides of the groove 4. The slide grooves 23 are vertically arranged. A spring 6 is provided at the bottom of the slide groove 23. One end of the spring 6 is fixedly connected to the slide groove 23, and the other end of the spring 6 is fixedly connected to the monitoring tube 9. A slider 17 is provided inside the slide groove 23, and the slider 17 is slidably connected to the slide groove 23. The first guide groove is provided on both the front and rear sides of the slide groove 23, and the guide block 16 is provided in the first guide groove, the guide block 16 is slidably connected to the first guide groove, and the guide block 16 is fixed to the slider 17. A driving rod 12 is provided on one side of the slider 17, the upper end of the driving rod 12 is fixed to the slider 17, and the lower end of the driving rod 12 is connected to the connecting block 19 through the lower hinge 20. A second guide groove is provided on the side of the monitoring tube 9, the second guide groove is vertically arranged, and the connecting block 19 is slidably connected in the second guide groove; a limiting spring sheet 15 is obliquely arranged at the bottom of the slide groove 23, the top of the limiting spring sheet 15 is fixed to the slide groove 23, and the limiting spring sheet 15 is located above the spring 6.

[0039] When in use, the device is immersed in water, and water is allowed to enter the monitoring tube 9 through the through hole 8, so that the absorbent sponge 13 in the monitoring tube 9 is filled with water, and then the drilling rig drives the monitoring column 3 to rotate, so that the monitoring column 3 is inserted into the soil. During the insertion of the monitoring column 3, since the pressure sensor 5 on the monitoring tube 9 is located in the groove 4, and the pressure sensor 5 is located between the monitoring tube 9 and the monitoring column 3, the pressure sensor 5 can be effectively protected during the drilling of the monitoring column 3 to avoid damage.

[0040] After the monitoring column 3 is inserted into the soil, the monitoring tube 9 is driven to slowly rotate outward along the hinge 22 under the elastic force of the spring 6. During the rotation of the monitoring tube 9, the piston 14 slides in the monitoring tube 9 to compress the water-absorbing sponge 13. By setting the structure that the piston 14 compresses the water-absorbing sponge 13, on the one hand, the rotation process of the monitoring tube 9 has a certain damping, so that this process is carried out slowly, and the monitoring tube 9 is prevented from being quickly unfolded and forming obstacles during the drilling of the monitoring column 3 into the soil. On the other hand, the water-absorbing sponge 13 is compressed to overflow water, and the water overflows to the outside through the through hole 8, moistening the soil around the monitoring tube 9, so that the obstacles during the unfolding of the monitoring tube 9 in the soil are reduced;

[0041] When the limit block 7 is against the monitoring column 3, the monitoring tube 9 no longer rotates, and during the rotation of the monitoring tube 9, the connecting block 19 and the slider 17 slide downward along the second guide groove and the first guide groove respectively. During the sliding movement of the slider 17, since the limit spring piece 15 has a certain elasticity, the slider 17 can move to the bottom of the limit spring piece 15. At this time, the slider 17 is stuck between the limit spring piece 15 and the spring 6, so that the monitoring tube 9 cannot rotate in the opposite direction, thereby fixing the position of the monitoring tube 9.

[0042] At this time, the pressure sensor 5 is located at the top of the monitoring tube 9 and is covered by soil. The pressure sensor 5 sends the internal soil pressure data to the staff in real time. When displacement, settlement and other phenomena occur, the pressure data sent by the pressure sensor 5 changes, so that the displacement, settlement and other phenomena are monitored.

[0043] Example 3

[0044] like Figure 1-5 As shown, when other parts are the same as those of Example 2, the difference between this embodiment and Example 2 is that the second guide groove is a dovetail groove, and the connecting block 19 is dovetail-shaped. By setting the dovetail groove and the dovetail-shaped connecting block 19, the second guide groove and the connecting block 19 are connected more tightly.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A geotechnical engineering investigation safety monitoring device, characterized in that: It comprises a drilling rig and a monitoring column (3), wherein the drill bit (1) of the drilling rig is located above the monitoring column (3), the drill bit (1) is plugged into the top of the monitoring column (3), a locking screw (2) is arranged to penetrate the top of the monitoring column (3) in a transverse direction, the locking screw (2) penetrates the bottom of the drill bit (1), and the locking screw (2) is threadedly connected to the drill bit (1) and the monitoring column (3) respectively; A groove (4) is provided in the middle of the monitoring column (3), the groove (4) is arranged circumferentially around the monitoring column (3), and monitoring mechanisms are installed on both left and right sides of the groove (4); The monitoring mechanism comprises a monitoring tube (9), the monitoring tube (9) being located in the groove (4), a sealing cover (10) being arranged on the top of the monitoring tube (9), the monitoring tube (9) being threadedly connected to the sealing cover (10), a plurality of through holes (8) being provided on a side of the monitoring tube (9) away from the monitoring column (3), and a plurality of pressure sensors (5) being installed on a side of the monitoring tube (9) close to the monitoring column (3); A limit block (7) is provided at the bottom of the monitoring tube (9), the bottom of the limit block (7) is flush with the bottom of the monitoring tube (9), and the limit block (7) is connected to the bottom edge of the groove (4) via a hinge (22); A water-absorbing sponge (13) is arranged inside the monitoring tube (9), a piston (14) is arranged below the water-absorbing sponge (13), the piston (14) is slidably connected to the inner wall of the monitoring tube (9), a connecting rope (11) is arranged through the center of the water-absorbing sponge (13), the connecting rope (11) is slidably connected to the water-absorbing sponge (13), the lower end of the connecting rope (11) is fixedly connected to the piston (14), the top of the connecting rope (11) passes through the sealing cover (10), the connecting rope (11) is slidably connected to the sealing cover (10), and the top of the connecting rope (11) is fixedly connected to the monitoring column (3); The groove (4) is provided with a slide groove (23) on both left and right sides. The slide groove (23) is arranged vertically. A spring (6) is arranged at the bottom of the slide groove (23). One end of the spring (6) is fixedly connected to the slide groove (23), and the other end of the spring (6) is fixedly connected to the monitoring tube (9).

2. A geotechnical engineering investigation safety monitoring device according to claim 1, characterized in that: A sliding block (17) is arranged inside the sliding groove (23), and the sliding block (17) is slidably connected to the sliding groove (23).

3. A geotechnical engineering investigation safety monitoring device according to claim 2, characterized in that: The slide groove (23) is provided with a first guide groove on both the front and rear sides, a guide block (16) is provided in the first guide groove, the guide block (16) is slidably connected to the first guide groove, and the guide block (16) is fixedly connected to the slide block (17).

4. A geotechnical engineering investigation safety monitoring device according to claim 3, characterized in that: A driving rod (12) is provided on one side of the slider (17), the upper end of the driving rod (12) is fixedly connected to the slider (17), and the lower end of the driving rod (12) is connected to the connecting block (19) via a lower hinge (20). A second guide groove is provided on the side of the monitoring tube (9), the second guide groove is vertically arranged, and the connecting block (19) is slidably connected in the second guide groove.

5. A geotechnical engineering investigation safety monitoring device according to claim 4, characterized in that: The second guide groove is a dovetail groove, and the connecting block (19) is in a dovetail shape; A limiting spring piece (15) is obliquely arranged at the bottom of the slide groove (23); the top of the limiting spring piece (15) is fixedly connected to the slide groove (23); and the limiting spring piece (15) is located above the spring (6).

6. The method for using the geotechnical engineering investigation safety monitoring device according to claim 5, characterized in that: The steps include: S1, after the monitoring column (3) is inserted into the soil, the monitoring tube (9) is driven to slowly rotate outward along the hinge (22) under the elastic force of the spring (6); when the limit block (7) abuts against the monitoring column (3), the monitoring tube (9) stops rotating; S2, at this time, the pressure sensor (5) is located at the top of the monitoring tube (9) and is covered by soil. The pressure sensor (5) sends the soil internal pressure data to the staff in real time. When displacement or settlement occurs, the pressure data sent by the pressure sensor (5) changes, so that the displacement or settlement is monitored.

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