Fixing device for geological monitoring instrument and geological monitoring device

Abstract

The invention relates to a fixing device for a geological monitoring instrument and a geological monitoring device.The fixing device comprises a fastening assembly and an annular bearing table; the fastening assembly is a cylinder with one end provided with an opening, and the interior of the fastening assembly is used for fixedly containing a containing pipe body of the geological monitoring instrument. The fastening assembly is of a hollow structure and is placed in a geological drill hole, the outer side of the fastening assembly can abut against the inner wall of the geological drill hole, and the fastening assembly is in pouring connection with the geological drill hole; the annular bearing table is arranged in the circumferential direction of the opening of the fastening assembly, and when the fastening assembly is located in the geological drill hole, the annular bearing table is connected to the edge of the opening of the geological drill hole in a clamped mode. The device has the beneficial effects that the containing pipe body is accurately and stably fixed, so that a geological monitoring instrument arranged in the containing pipe body can accurately monitor surrounding geological changes.

Description

Technical Field

[0001] The invention relates to the technical field of railway geological disaster monitoring, and in particular to a fixing device for a geological monitoring instrument and a geological monitoring device. Background Art

[0002] Railway slope geological disaster monitoring refers to the continuous observation and analysis of slopes along the railway through a series of technical means to evaluate their stability and predict potential geological disasters. This kind of monitoring is crucial to preventing railway accidents and ensuring safety.

[0003] At present, inclinometers can detect changes in the internal structure of slopes, such as displacement between soil or rock layers. Most of the existing inclinometers are installed by geological drilling on the slope. First, the inclinometer tube used to install the inclinometer is inserted into the geological drilling hole and fixed by pouring cement slurry. The inclinometer tube is usually a hollow tube made of plastic or metal, with one or more guide rails inside to guide the inclinometer probe to move along a predetermined path, thereby fixing the inclinometer. The inclinometer tube and the slope are fixed in the above manner. In areas where soil erosion is relatively serious, the accumulated impact force of muddy water flowing downward for a long time will cause the inclinometer tube and the inclinometer inside to deviate or even fall, making the inclinometer measurement data inaccurate, which in turn affects the safety monitoring of the geology around the railway. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a fixing device for a geological monitoring instrument and a geological monitoring device, which solves the technical problem that the existing geological monitoring instruments including inclinometers are not stable enough in extreme environments.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present invention provides a fixing device for a geological monitoring instrument, comprising a fastening assembly and an annular bearing platform;

[0009] The fastening assembly is a cylinder with an opening at one end, and the interior of the cylinder is used to fix the containing tube body of the geological monitoring instrument;

[0010] The fastening component is a hollow structure, which is placed inside the geological borehole, and the outer side of the fastening component can abut against the inner wall of the geological borehole, and the fastening component is cast-connected to the geological borehole;

[0011] The annular bearing platform is arranged in the circumference of the opening of the fastening assembly. When the fastening assembly is located in the geological borehole, the annular bearing platform is clamped at the opening edge of the geological borehole.

[0012] Optionally, in the fixing device for geological monitoring instruments, the fastening assembly comprises a steel cage bracket and a plurality of fixing rings;

[0013] The steel cage support is cylindrical;

[0014] A plurality of the fixing rings are arranged inside the steel cage support at intervals along the axial direction of the fastening assembly, and the plane where the fixing rings are located is perpendicular to the axial direction of the fastening assembly;

[0015] The accommodating tube body and the fastening assembly are coaxially disposed in a plurality of fixing rings, and the plurality of fixing rings are used to fix the accommodating tube body.

[0016] Optionally, in the fixing device for geological monitoring instruments, the steel cage support comprises a plurality of outer ring bodies, a plurality of ribs and a plurality of connecting rods;

[0017] The plurality of outer ring bodies are arranged one by one outside the plurality of fixing rings, and the one-to-one arranged outer ring bodies are arranged concentrically with the fixing rings;

[0018] The ribs are fixedly arranged on the plurality of outer ring bodies along the axial direction of the fastening assembly, and the plurality of ribs are arranged at equal intervals around the circumference of the outer ring body;

[0019] A plurality of connecting rods are fixedly disposed in a circumferential direction of each of the fixing rings in an equidistant radial pattern, and the fixing rings and the outer ring body which are arranged concentrically are connected via the plurality of connecting rods.

[0020] Optionally, in the fixing device for geological monitoring instruments, the fixing ring is a hollow structure with a rectangular cross section, and the inside of the fixing ring is used to place the expansion medium;

[0021] The side of the fixing ring facing the accommodating tube body is an elastic sealing membrane;

[0022] A plurality of water absorption holes are arranged at intervals on a side of the fixing ring away from the elastic sealing membrane.

[0023] Optionally, in the fixing device for geological monitoring instruments, the containing pipe body is formed by splicing a plurality of sub-pipe bodies;

[0024] The elastic sealing film corresponds to the joints of the adjacent sub-tube bodies and is used for sealing the adjacent sub-tube bodies.

[0025] Optionally, in the fixing device for geological monitoring instruments, the steel cage support further comprises an elastic cavity rod and an inner rod body;

[0026] The connecting rod is a hollow structure, a first end of which is connected to the interior of the fixing ring, and an elastic extrusion membrane is provided at the connection point between the connecting rod and the fixing ring;

[0027] The second end of the connecting rod is connected to the elastic cavity rod, and the inner rod body is arranged in the connecting rod and the elastic cavity rod;

[0028] The elastic cavity rod can expand and deform along its thickness direction and length direction;

[0029] When the expansion medium placed in the fixing ring expands, the expansion medium squeezes the elastic squeezing membrane to push the inner rod body to move outward along the connecting rod and the elastic cavity rod;

[0030] The ends of the deformed elastic cavity rod and the moved inner rod body facing away from the fixing ring are used to abut against the inner wall of the geological borehole.

[0031] Optionally, in the fixing device for geological monitoring instruments, the elastic cavity rod comprises an elastic metal layer and a first elastic expansion mesh layer from inside to outside in sequence;

[0032] The spherical expansion medium is evenly distributed in the first elastic expansion mesh layer;

[0033] When the expansion medium in the first elastic expansion mesh layer expands, the first elastic expansion mesh layer deforms to drive the elastic metal layer to deform.

[0034] Optionally, in the fixing device for geological monitoring instruments, the fastening assembly further comprises a plurality of support rods;

[0035] A plurality of support rods are provided on the inner side of the blind end of the steel cage support parallel to the ribs;

[0036] The plurality of support rods are used to support the accommodating tube body.

[0037] Optionally, in the fixing device for geological monitoring instruments, a plurality of limit grooves are provided on the end surface of the accommodating tube body facing the support rod;

[0038] The fastening assembly also includes a plurality of limit blocks;

[0039] The limit block is arranged on the end surface of the support rod facing the accommodating tube body;

[0040] The plurality of limit blocks are adapted to the plurality of limit grooves in a one-to-one correspondence;

[0041] A second elastic expansion mesh layer is arranged on the outer side of the support rod.

[0042] In a second aspect, an embodiment of the present invention provides a geological monitoring device, comprising at least one geological monitoring instrument and the fixing device described in the first aspect;

[0043] When the geological monitoring instrument needs to be placed inside the fixing device, the geological monitoring device further comprises the accommodating tube body, the accommodating tube body and the fastening assembly are coaxially arranged inside the fixing device, and the geological monitoring instrument is sealed inside the accommodating tube body;

[0044] Alternatively, the geological monitoring instrument is arranged above the fixing device;

[0045] Alternatively, the geological monitoring instrument is arranged on the annular supporting platform.

[0046] (III) Beneficial effects

[0047] The beneficial effects of the present invention are as follows: a fixing device and a geological monitoring device for a geological monitoring instrument of the present invention, wherein the fixing device adopts a cylindrical hollow fastening component, the interior of which is used to fix the accommodating tube body, and the hollow fastening component is cast connected to the geological borehole. Compared with directly fixing the accommodating tube body to the geological borehole by grouting, the provision of the fastening component can increase the fastening area of ​​the accommodating tube body in the geological borehole, and the fixing effect in the borehole is better; the outer side of the fastening component abuts against the inner wall of the geological borehole, and at the same time improves the fixing force of the fastening component and the geological borehole; in addition, the provision of the fastening component can avoid the impact force of the slurry on the accommodating tube body during the casting process, and at the same time, the annular bearing platform at the opening of the fastening component assists in positioning the fastening component at the edge of the geological borehole, and ultimately makes the placement position of the accommodating tube body more accurate; compared with the prior art, accurate and stable fixation of the accommodating tube body is achieved, which is conducive to the geological monitoring instrument placed in the accommodating tube body to accurately monitor the surrounding geological changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional schematic diagram of a fixing device for a geological monitoring instrument and a fixing device of Embodiment 1 of the geological monitoring device of the present invention when fixing an accommodating tube body;

[0049] Figure 2 It is a three-dimensional schematic diagram of a fixing device for a geological monitoring instrument and a fixing device of Embodiment 1 of a geological monitoring device of the present invention;

[0050] Figure 3 for Figure 1 A cross-sectional schematic diagram of a fixing device in FIG.

[0051] Figure 4 for Figure 3 An enlarged schematic diagram of area A in the middle fixture;

[0052] Figure 5 for Figure 3 An enlarged schematic diagram of area B in the middle fixture;

[0053] Figure 6 for Figure 3 An enlarged schematic diagram of area C in the fixation device.

[0054] [Description of Reference Numerals]

[0055] 1: fastening assembly; 11: steel cage support; 111: outer ring body; 112: ribs; 113: connecting rod; 114: elastic cavity rod; 1141: elastic metal layer; 1142: first elastic expansion mesh layer; 115: inner rod body; 116: elastic extrusion membrane; 12: fixing ring; 121: elastic sealing membrane; 122: water absorption hole; 13: support rod; 14: limit block; 15: second elastic expansion mesh layer;

[0056] 2: Annular bearing platform;

[0057] 3: Accommodation pipe body; 31: Sub-pipe body;

[0058] 4: Expansion medium. DETAILED DESCRIPTION

[0059] The embodiments of the present invention provide a fixing device and a geological monitoring device for a geological monitoring instrument, which are aimed at the technical problem that the existing geological monitoring instruments including inclinometers are not stable enough in extreme environments. The fixing device adopts a cylindrical hollow fastening component, the interior of which is used to fix the accommodating tube body, and the hollow fastening component is cast and connected to the geological borehole. Compared with directly fixing the accommodating tube body to the geological borehole by grouting, the setting of the fastening component can increase the fastening area of ​​the accommodating tube body in the geological borehole, and the fixing effect in the borehole is better. The outer side of the fastening component abuts against the inner wall of the geological borehole, and at the same time, the fixing force between the fastening component and the geological borehole is improved. In addition, the setting of the fastening component can avoid the impact force of the slurry on the accommodating tube body during the casting process, and at the same time, the annular bearing platform at the opening of the fastening component assists in positioning the fastening component at the edge of the geological borehole, so that the placement position of the accommodating tube body is finally more accurate. Compared with the prior art, the accurate and stable fixation of the accommodating tube body is achieved, which is conducive to the geological monitoring instrument placed in the accommodating tube body to accurately monitor the surrounding geological changes.

[0060] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0061] Example 1

[0062] Reference Figure 1 , Figure 2 and Figure 3 The present embodiment provides a fixing device for a geological monitoring instrument, including a fastening assembly 1 and an annular supporting platform 2. The fastening assembly 1 is a cylinder with an opening at one end, and the interior thereof is used to fix a containing tube body 3 of the geological monitoring instrument, that is, the containing tube body 3 is placed into the fastening assembly 1 from the opening of the fastening assembly. The fastening assembly 1 is a hollow structure, which is placed inside a geological borehole, and the outer side of the fastening assembly 1 can abut against the inner wall of the geological borehole, and at the same time, the fastening assembly 1 is cast-connected to the geological borehole. The annular supporting platform 2 is arranged in the circumference of the opening of the fastening assembly 1, and when the fastening assembly 1 is located in the geological borehole, the annular supporting platform 2 is clamped at the edge of the opening of the geological borehole.

[0063] Since the fixing device adopts a cylindrical hollow fastening component 1, the interior of the fastening component 1 is used to fix the accommodating tube body 3. The hollow fastening component 1 is cast connected to the geological borehole. Compared with directly fixing the accommodating tube body 3 to the geological borehole by grouting, the setting of the fastening component 1 can increase the fastening area of ​​the accommodating tube body 3 in the geological borehole, and the fixing effect in the borehole is better; the outer side of the fastening component 1 abuts against the inner wall of the geological borehole, and at the same time improves the fixing force of the fastening component 1 and the geological borehole; in addition, the setting of the fastening component 1 can avoid the impact force of the slurry on the accommodating tube body 3 during the pouring process, and at the same time, the annular supporting platform 2 at the opening of the fastening component 1 assists in positioning the fastening component 1 at the edge of the geological borehole, which ultimately makes the placement of the accommodating tube body 3 more accurate; accurate and stable fixation of the accommodating tube body 3 is achieved, which is conducive to the geological monitoring instrument placed in the accommodating tube body 3 to accurately monitor the surrounding geological changes.

[0064] Alternatively, as required, the fixing device can be directly used to fix the geological monitoring instrument, that is, the containing tube body 3 is not used, the fixing device is fixed in the geological borehole, and the geological monitoring instrument is directly placed on the fixing device at a suitable position. The barrel of the fastening assembly 1 can be a cylinder or a square cylinder, which can be appropriately adjusted according to actual needs, preferably a cylinder, which is convenient for geological drilling and grouting installation.

[0065] Reference Figure 1 , Figure 2 and Figure 3The present embodiment provides a fixing device for a geological monitoring instrument. The fastening assembly 1 includes a steel cage support 11 and a plurality of fixing rings 12. The steel cage support 11 is cylindrical and hollow inside. The plurality of fixing rings 12 are arranged inside the steel cage support 11 at intervals along the axial direction of the fastening assembly 1, and the plane where the fixing rings 12 are located is perpendicular to the axial direction of the fastening assembly 1. The accommodating tube body 3 is coaxially placed in the plurality of fixing rings 12 with the fastening assembly 1, and the plurality of fixing rings 12 are used to fix the accommodating tube body 3. The plurality of fixing rings 12 are coaxially arranged to coaxially position the accommodating tube body 3, which can prevent the impact force of the injected cement slurry on the outside of the accommodating tube body 3, and realize accurate and stable fixation of the accommodating tube body 3. In the event of geological disasters such as mudslides occurring on the slopes around the railway, the geological monitoring instrument in the accommodating tube body 3 can be accurately monitored.

[0066] Reference Figure 1 , Figure 2 and Figure 3 The present embodiment provides a fixing device for a geological monitoring instrument, wherein the steel cage support 11 comprises a plurality of outer ring bodies 111, a plurality of ribs 112 and a plurality of connecting rods 113. The plurality of outer ring bodies 111 are arranged one-to-one on the outside of the plurality of fixing rings 12, and the one-to-one outer ring bodies 111 are arranged concentrically with the fixing rings 12. The ribs 112 are fixedly arranged on the plurality of outer ring bodies 111 along the axial direction of the fastening assembly 1, and the plurality of ribs 112 are arranged equidistantly around the outer ring body 111 in the circumferential direction, and the ribs 112 are used to fix the outer ring body 111, wherein the ribs 112 provide vertical support for the entire fixing assembly 1, and the outer ring body 111 provides water support. A plurality of connecting rods 113 are fixedly arranged equidistantly radially on the circumference of each fixing ring 12, and the concentrically arranged fixing ring 12 and the outer ring body 111 are connected by a plurality of connecting rods 113, and the fixing ring 12 is supported by the outer ring body 111 to ensure the stability of the fixing ring 12.

[0067] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 This embodiment provides a fixing device for a geological monitoring instrument, wherein the fixing ring 12 is a hollow structure with a rectangular cross section. The fixing ring 12 is used to place an expansion medium 4, and the expansion medium 4 can be selected from granular expansion cement or other similar materials. The expansion cement is a special type of cement that will produce a certain volume expansion during the hardening process. The inner side of the fixing ring 12 is an elastic sealing membrane 121, and a plurality of water absorption holes 122 are arranged at intervals on the side of the fixing ring 12 away from the elastic sealing membrane 121. For example, when the expansion cement in the fixing ring 12 absorbs water through the water absorption holes 122 and expands, it exerts a squeezing effect on the elastic sealing membrane 121 on the inner side of the fixing ring 12, which can enhance the clamping and fixing effect of the fixing ring 12 on the internally contained tube body 3.

[0068] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 This embodiment provides a fixing device for a geological monitoring instrument. When the containing tube body 3 is composed of multiple sections of sub-tube bodies 31, the elastic sealing membrane 121 corresponds to the joints of adjacent sub-tube bodies 31, and can be used to seal the adjacent sub-tube bodies 31 through the expansion effect of the expansion medium 4.

[0069] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , this embodiment provides a fixing device for geological monitoring instruments, and the steel cage bracket 11 also includes an elastic cavity rod 114 and an inner rod body 115. The connecting rod 113 is a hollow structure, and its first end is connected to the inside of the fixing ring 12. An elastic extrusion membrane 116 is provided at the connection between the connecting rod 113 and the fixing ring 12. The elastic extrusion membrane 116 can prevent the expansion medium 4 from leaking out, and does not affect the expansion effect of the expansion medium 4. The second end of the connecting rod 113 is connected to the elastic cavity rod 114, and the inner rod body 115 is arranged in the connecting rod 113 and the elastic cavity rod 114. The elastic cavity rod 114 can expand and deform along its thickness direction and length direction. When the expansion medium 4 placed in the fixing ring 12 expands, the expansion medium 4 squeezes the elastic extrusion membrane 116 to push the inner rod body 115 to move outward along the connecting rod 113 and the elastic cavity rod 114. The ends of the deformed elastic cavity rod 114 and the moved inner rod body 115 facing away from the fixing ring 12 are used to abut against the inner wall of the geological borehole, so that the multiple elastic cavity rods 114 and the inner rod body 115 can form a large-area stable support inside the geological borehole in the shape of tree roots. In addition, the solidification effect of the cement slurry enhances the stability of the fixing device in the geological borehole, and can resist the displacement effect of geological disasters on the containing tube body 3.

[0070] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This embodiment provides a fixing device for a geological monitoring instrument. The elastic cavity rod 114 includes an elastic metal layer 1141 and a first elastic expansion mesh layer 1142 from the inside to the outside. The spherical expansion medium 4 is evenly distributed in the first elastic expansion mesh layer 1142. When the spherical expansion medium 4 in the first elastic expansion mesh layer 1142 expands, the first elastic expansion mesh layer 1142 deforms to drive the elastic metal layer 1141 to deform and then harden, that is, the elastic cavity rod 114 expands and deforms in its thickness direction and length direction. This deformation and hardening of the elastic cavity rod 114, in addition to the function of abutting against the inner wall of the geological borehole, after the cement slurry hardens in the geological borehole, part of the cement slurry enters the wall of the elastic cavity rod 114 through the mesh holes of the first elastic expansion mesh layer 1142. Therefore, when the cement slurry hardens, it will be in a wrapped state and can form a tree-like shape in the wall of the elastic cavity rod 114, thereby increasing the curing effect of the cement slurry on the elastic cavity rod 114, thereby further improving the fixing effect of the cement slurry on the accommodating tube body 3.

[0071] Based on the above, the elastic cavity rod 114 expands and the inner rod body 115 moves and is inserted into the soil on the inner wall of the borehole, and the cement slurry after hardening is embedded in the wall of the elastic cavity rod 114 in a wrapped state, so that even if there is a serious geological disaster around the accommodating tube body 3, such as a serious mudslide on the slope, the accommodating tube body 3 can stably maintain the initial state. The inner rod body 115 also has the function of supporting the elastic cavity rod 114 to carry the spherical expansion medium 4 filled in the elastic cavity rod 114.

[0072] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 This embodiment provides a fixing device for geological monitoring instruments. The fastening assembly 1 further includes a plurality of support rods 13. The inner side of the blind end of the steel cage support 11 is provided with a plurality of support rods 13 parallel to the ribs 112. The plurality of support rods 13 are used to support the accommodating tube body 3. Furthermore, a plurality of limiting grooves are provided on the end surface of the accommodating tube body 3 facing the support rods 13. The fastening assembly 1 further includes a plurality of limiting blocks 14. The limiting blocks 14 are provided on the end surface of the support rods 13 facing the accommodating tube body 3. The plurality of limiting blocks 14 are adapted to the plurality of limiting grooves in a one-to-one correspondence. Figure 6 The cross section of the stopper block 14 can be a cross, T-shaped or other special-shaped block, and the corresponding stopper groove cross section is also a cross, T-shaped or other special-shaped groove. When cement slurry is poured into the geological borehole, especially when the cement slurry is poured in a vibration manner, the accommodating pipe body 3 can be prevented from tilting or jumping.

[0073] In addition, a second elastic expansion mesh layer 15 is provided on the outer side of the support rod 13. The second elastic expansion mesh layer 15 can be a water-absorbing expansion mesh. The water-absorbing expansion mesh expands when it comes into contact with water, and the mesh diameter of the water-absorbing expansion mesh is relatively large. Therefore, the expanded water-absorbing expansion mesh will enter the cement slurry, thereby allowing the multiple support rods 13 to be more tightly combined with the hardened cement slurry, further improving the fixing effect of the fastening assembly 1 on the accommodating tube body 3.

[0074] Example 2

[0075] The present embodiment provides a geological monitoring device, including at least one geological monitoring instrument and the fixing device in Example 1. When the geological monitoring instrument needs to be placed inside the fixing device, the geological monitoring device also includes a containing tube body 3, which is coaxially arranged in the fixing device with the fastening assembly 1, and the geological monitoring instrument is sealed in the containing tube body 3. Alternatively, the geological monitoring instrument is arranged above the fixing device, or the geological monitoring instrument is arranged on the annular support platform 2, and the above two situations utilize the stable fixing effect of the fixing device. Under the condition of no contradiction in use, the fixing device can fix multiple geological monitoring instruments at the same time to realize a combination of multiple monitoring functions.

[0076] Among them, the geological monitoring instrument can be an inclinometer, a crack monitoring integrated machine, etc. When an inclinometer needs to be installed, the accommodating pipe body 3 is an inclinometer tube. Regarding the specific location of the geological drilling hole, the inclinometer and the installation between the inclinometer and the inclinometer tube, refer to the existing technology.

[0077] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0080] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0081] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fixing device for a geological monitoring instrument, characterized in that: It comprises a fastening assembly (1) and an annular bearing platform (2); The fastening assembly (1) is a cylinder with an opening at one end, and the interior of the cylinder is used to fix a containing tube body (3) for placing the geological monitoring instrument; The fastening component (1) is a hollow structure, which is placed inside the geological borehole, and the outer side of the fastening component (1) can abut against the inner wall of the geological borehole, and the fastening component (1) is cast-connected to the geological borehole; The annular bearing platform (2) is arranged in the circumference of the opening of the fastening component (1); when the fastening component (1) is located in the geological borehole, the annular bearing platform (2) is clamped at the opening edge of the geological borehole.

2. The fixing device for geological monitoring instrument according to claim 1, characterized in that: The fastening assembly (1) comprises a steel cage support (11) and a plurality of fixing rings (12); The steel cage support (11) is cylindrical; A plurality of fixing rings (12) are arranged at intervals along the axial direction of the fastening assembly (1) inside the steel cage support (11), and the plane where the fixing rings (12) are located is perpendicular to the axial direction of the fastening assembly (1); The accommodating tube body (3) and the fastening assembly (1) are coaxially placed in a plurality of fixing rings (12), and the plurality of fixing rings (12) are used to fix the accommodating tube body (3).

3. The fixing device for geological monitoring instrument according to claim 2, characterized in that: The steel cage support (11) comprises a plurality of outer ring bodies (111), a plurality of ribs (112) and a plurality of connecting rods (113); The plurality of outer ring bodies (111) are arranged one-to-one outside the plurality of fixing rings (12), and the one-to-one outer ring bodies (111) are arranged concentrically with the fixing rings (12); The ribs (112) are fixedly arranged on the plurality of outer ring bodies (111) along the axial direction of the fastening assembly (1), and the plurality of ribs (112) are equidistantly arranged around the outer ring body (111) in the circumferential direction; A plurality of connecting rods (113) are fixedly disposed in an equidistant radial pattern in the circumference of each fixing ring (12), and the fixing ring (12) and the outer ring body (111) which are arranged concentrically are connected via the plurality of connecting rods (113).

4. The fixing device for geological monitoring instrument according to claim 3, characterized in that: The fixing ring (12) is a hollow structure with a rectangular cross section, and the fixing ring (12) is used to place the expansion medium (4); The side of the fixing ring (12) facing the accommodating tube body (3) is an elastic sealing membrane (121); A plurality of water absorption holes (122) are arranged at intervals on a side of the fixing ring (12) away from the elastic sealing membrane (121).

5. The fixing device for geological monitoring instrument according to claim 4, characterized in that: The containing tube body (3) is formed by splicing together a plurality of sub-tube bodies (31); The elastic sealing film (121) corresponds to the joints of adjacent sub-tube bodies (31) and is used to seal the adjacent sub-tube bodies (31).

6. The fixing device for geological monitoring instrument according to claim 4, characterized in that: The steel cage support (11) further comprises an elastic cavity rod (114) and an inner rod body (115); The connecting rod (113) is a hollow structure, and a first end thereof is connected to the interior of the fixing ring (12). An elastic extrusion membrane (116) is provided at the connection point between the connecting rod (113) and the fixing ring (12); The second end of the connecting rod (113) is in communication with the elastic cavity rod (114), and the inner rod body (115) is disposed in the connecting rod (113) and the elastic cavity rod (114); The elastic cavity rod (114) is capable of expanding and deforming along its thickness direction and length direction; When the expansion medium (4) placed in the fixing ring (12) expands, the expansion medium (4) squeezes the elastic squeezing membrane (116) to push the inner rod body (115) to move outward along the connecting rod (113) and the elastic cavity rod (114); The deformed elastic cavity rod (114) and the moved inner rod body (115), the ends of which are away from the fixing ring (12), are used to abut against the inner wall of the geological borehole.

7. The fixing device for geological monitoring instrument according to claim 6, characterized in that: The elastic cavity rod (114) comprises, from inside to outside, an elastic metal layer (1141) and a first elastic expansion mesh layer (1142); The spherical expansion medium (4) is evenly distributed in the first elastic expansion mesh layer (1142); When the expansion medium (4) in the first elastic expansion mesh layer (1142) expands, the first elastic expansion mesh layer (1142) deforms to drive the elastic metal layer (1141) to deform.

8. The fixing device for geological monitoring instrument according to claim 4, characterized in that: The fastening assembly (1) further comprises a plurality of support rods (13); A plurality of support rods (13) are provided on the inner side of the blind end of the steel cage support (11) parallel to the ribs (112); The plurality of support rods (13) are used to support the accommodating tube body (3).

9. The fixing device for geological monitoring instrument according to claim 8, characterized in that: A plurality of limiting grooves are arranged on the end surface of the accommodating tube body (3) facing the supporting rod (13); The fastening assembly (1) further comprises a plurality of limit blocks (14); The limit block (14) is arranged on the end surface of the support rod (13) facing the accommodating tube body (3); The plurality of limit blocks (14) are adapted to the plurality of limit grooves in a one-to-one correspondence; A second elastic expansion mesh layer (15) is provided on the outer side of the support rod (13).

10. A geological monitoring device, characterized in that: comprising at least one geological monitoring instrument and a fixing device as described in any one of claims 1 to 9; When the geological monitoring instrument needs to be placed inside the fixing device, the geological monitoring device further comprises the accommodating tube body (3), the accommodating tube body (3) and the fastening assembly (1) are coaxially arranged inside the fixing device, and the geological monitoring instrument is sealed inside the accommodating tube body (3); Alternatively, the geological monitoring instrument is arranged above the fixing device; Alternatively, the geological monitoring instrument is arranged on the annular supporting platform (2).

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