CN218723956U - Tunnel surrounding rock monitoring installer - Google Patents
Tunnel surrounding rock monitoring installer Download PDFInfo
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- CN218723956U CN218723956U CN202223338577.2U CN202223338577U CN218723956U CN 218723956 U CN218723956 U CN 218723956U CN 202223338577 U CN202223338577 U CN 202223338577U CN 218723956 U CN218723956 U CN 218723956U
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Abstract
The utility model provides a tunnel country rock monitoring erector, include: the sealing ring is abutted against the stepped surface of the tunnel surrounding rock drilling hole, and the filling layer is filled between the tunnel surrounding rock drilling hole and the sleeve; the length of the sleeve is close to the depth of the first rock hole section, and the sleeve is sleeved on the rod body in the range corresponding to the first rock hole section; the bottom surface of the sleeve is in contact with the sealing ring, and the sealing ring is also in contact with a step surface at the joint of the first rock hole section and the second rock hole section; and a cavity is formed among the sealing ring, the sleeve and the first rock hole section, and a filling agent is filled into the cavity to form a filling layer. The utility model discloses a common fixed tunnel country rock monitoring pole of sealing washer, sleeve pipe and filling layer lets tunnel country rock monitoring pole and tunnel country rock drilling hole large tracts of land contact to use the sealing washer effectively to block filler entering hole body, when tunnel country rock deformation the utility model discloses a filler ensures tunnel country rock monitoring pole continuous contact tunnel country rock, improves the monitoring data accuracy.
Description
Technical Field
The utility model relates to a tunnel country rock geology monitoring technology field especially relates to a tunnel country rock monitoring erector.
Background
With the urgent demand of national economy development on traffic infrastructure, the number of highway tunnels is gradually increased. For the rock mass highway engineering, the existence of different types of structural surfaces of rock masses increases the complexity of internal mechanical behaviors of tunnel surrounding rocks, and the deformation and instability of the surrounding rocks become a big defect influencing the drilling construction of the rock masses or soil bodies in the process of excavating tunnels. If can understand the tunnel country rock change situation clearly, not only can arrange the excavation progress in time rationally and arrange safeguard procedures, can also avoid rock mass or soil body to bore the emergence of construction calamity.
The method for acquiring the monitoring data of the tunnel rock mass mostly adopts drilling monitoring at present. The drilling monitoring is based on the drilling technology, the monitoring device is used for collecting rock mass deep information, and the tunnel surrounding rock condition is judged according to the rock mass deep information. However, when the monitoring rod of the monitoring device is placed in the drill hole, a gap exists between the peripheral wall of the monitoring rod and the hole wall of the drill hole, the gap affects the accuracy of data acquisition of the monitoring rod, and the monitoring rod is installed loosely in the deformation process of the tunnel surrounding rock.
In view of the above, it is necessary to develop a tunnel surrounding rock monitoring installation device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tunnel country rock monitoring erector adopts sealing washer, sleeve pipe and the common fixed tunnel country rock monitoring pole of filling layer, lets tunnel country rock monitoring pole and tunnel country rock drilling hole large tracts of land contact to use the sealing washer can effectively block that the filler gets into second rock hole section and influence the monitoring of tunnel country rock monitoring pole, have convenient to use's characteristics, in addition the utility model discloses a filler ensures tunnel country rock deformation in-process tunnel country rock monitoring pole continuous contact tunnel country rock, improves the monitoring data accuracy.
Realize the utility model discloses the technical scheme of purpose as follows:
the utility model provides a tunnel country rock monitoring erector, its installs in tunnel country rock drill hole, and tunnel country rock drill hole includes: the first rock hole section of using first drill bit drilling, use the second drill bit to continuously creep into the second rock hole section of formation at the bottom of the hole of first rock hole section, tunnel country rock monitoring erector includes: the sealing ring is abutted to the stepped surface of the tunnel surrounding rock drilling hole, and the filling layer is filled between the tunnel surrounding rock drilling hole and the sleeve;
the tunnel surrounding rock monitoring rod comprises a rod body and a monitoring head, and the monitoring head is mounted at the top end of the rod body; the monitoring head penetrates through the first rock hole section, so that the rod body is located in the first rock hole section, the monitoring head is located in the second rock hole section, the aperture of the first rock hole section is larger than that of the second rock hole section, the outer diameter of the rod body is close to that of the second rock hole section, and the connecting position of the rod body and the monitoring head is located in the second rock hole section;
the length of the sleeve is close to the depth of the first rock hole section, and the sleeve is sleeved on the rod body in the range corresponding to the first rock hole section; the bottom surface of the sleeve is in contact with the sealing ring, and the sealing ring is also in contact with a step surface at the joint of the first rock hole section and the second rock hole section;
and a cavity is formed among the sealing ring, the sleeve and the first rock hole section, and a filling agent is filled into the cavity to form a filling layer.
The utility model discloses a sealing washer, sleeve pipe and filling layer are fixed tunnel country rock monitoring pole jointly, let tunnel country rock monitoring pole and tunnel country rock drilling hole large tracts of land contact to adopt the mode that the pole body slightly gos deep into second rock hole section to ensure that the monitoring head is better to contact with tunnel country rock under operating condition. The utility model discloses a tunnel country rock monitoring erector has the advantage that the installation is swift, convenient to use.
As a further improvement of the utility model, the filling layer also fills the gap between the stepped surface and the sealing ring;
the seal ring prevents filler of the packed bed from flowing into the second bore section;
and a micro cavity is formed between the second rock hole section and the sealing ring and the rod body, and an expansion space is reserved for the monitoring head by the micro cavity.
The utility model discloses a when the cavity was poured into to the filler, the filler got into gap between ladder face and the sealing washer along the cavity, and filler shutoff gap lets sealing washer and tunnel country rock in close contact with, stops tunnel country rock deformation back and produces tunnel country rock monitoring pole and rock, the utility model discloses the reason that prevents tunnel country rock monitoring pole to take place to rock is: rock and can influence tunnel country rock monitoring pole monitoring accuracy.
In one possible implementation, the seal ring is in interference fit with the rod body;
the rod body and the monitoring head are pulled away from the sealing ring and the sleeve, so that the sealing ring and the sleeve are retained in the tunnel surrounding rock drilling hole.
The utility model discloses an interference fit indicates that the sealing washer internal diameter slightly is greater than pole body external diameter, and the sealing washer can axial displacement along the pole body. Because sealing washer, sleeve pipe and filling layer can stay in tunnel country rock probing hole after the monitoring is accomplished, treat later stage centralized processing, consequently the utility model discloses a sealing washer and pole body interference fit only need directly to draw and to demolish tunnel country rock monitoring pole from tunnel country rock probing hole, dismantle extremely conveniently.
In one possible implementation, the thickness of the filling layer is greater than half of the thickness of the sleeve;
the thickness of the filling layer is greater than two times of that of the sealing ring;
the filling layer is spread among the peripheral wall of the sealing ring, the end face of the sleeve and the step face.
The utility model discloses an optimal grout of packing of filling layer, grout have low cost, the good advantage of mobility, are in the grout in the installation of being more convenient for. The utility model discloses with the clearance between sleeve pipe and the pore wall increase when tunnel country rock drilling hole, increase grout layer thickness can realize tunnel country rock and sheathed tube fixed better.
In one possible embodiment, the sleeve is adhesively fixed to the sealing ring.
The utility model discloses increase the adhesive at sleeve pipe terminal surface and sealing washer terminal surface and let sleeve pipe and sealing washer fixed an organic whole, more be favorable to the fixed mounting of tunnel country rock monitoring erector.
As a further improvement of the utility model, the tunnel surrounding rock monitoring rod further comprises a gas flow passage which is communicated with the monitoring head, and the gas flow passage far away from the monitoring head is positioned outside the tunnel surrounding rock drilling hole in the axial direction;
the outer diameter of the gas flow passage is less than 1/3 of the diameter of the inner wall of the sleeve.
The utility model discloses run through the pole body with gas flow channel from monitoring head and extend to the tunnel country rock monitoring erector outside, be more convenient for fill gassing equipment and aerify or exit to monitoring head through gas flow channel.
As a further improvement of the utility model, the peripheral wall of the sleeve is provided with a plurality of convex rings which are distributed along the axial direction of the sleeve;
the thickness of the protruding ring is smaller than that of the sealing ring.
The utility model discloses the purpose of setting up protruding circle is to let between filling layer and the sleeve pipe fixed more firm.
As a further improvement of the utility model, the sleeve comprises a pipe body and an air bag, the air bag is embedded in the pipe wall of the pipe body, the length of the air bag is close to that of the pipe body, and the air bag is deflated to increase the inner diameter of the pipe body;
the balloon is deflated such that a gap exists between the sleeve and the shaft body.
The utility model discloses the purpose that sets up the space is the sleeve pipe is taken out to tunnel country rock monitoring pole more of being convenient for.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a sealing washer, sleeve pipe and filling layer are fixed tunnel country rock monitoring pole jointly, let tunnel country rock monitoring pole and tunnel country rock drilling hole large tracts of land contact to use the sealing washer can effectively block that the filler gets into second rock hole section and influence tunnel country rock monitoring pole monitoring, have convenient to use's characteristics.
2. When tunnel country rock deformation the utility model discloses a filler ensures tunnel country rock monitoring pole continuous contact tunnel country rock, improves the monitoring data accuracy.
Drawings
Fig. 1 is a first usage state diagram of a tunnel surrounding rock monitoring installer provided by the present invention;
fig. 2 is a second usage state diagram of a tunnel surrounding rock monitoring installer provided by the present invention;
fig. 3 is a third usage state diagram of a tunnel surrounding rock monitoring installer provided by the present invention;
fig. 4 is a fourth usage state diagram of a tunnel surrounding rock monitoring installer provided by the present invention;
fig. 5 is a schematic diagram of the tunnel surrounding rock drilling hole and the rock body before the tunnel surrounding rock monitoring installer of the utility model is not installed;
fig. 6 is a fifth usage state diagram of a tunnel surrounding rock monitoring installer provided by the present invention;
fig. 7 is a schematic axial section view of the sleeve provided by the present invention;
FIG. 8 isbase:Sub>A cross-sectional view of FIG. 7A-A with the balloon deflated as provided by the present invention;
fig. 9 isbase:Sub>A cross-sectional view of fig. 7A-base:Sub>A inbase:Sub>A conventional state of the bushing provided by the present invention;
in the figure, 100-rock mass; 200-drilling a hole in the tunnel surrounding rock; 210-a first bore section; 220-a second bore section; 300-tunnel surrounding rock monitoring rod; 310-a rod body; 320-a monitoring head; 330-gas flow path; 1-a sleeve; 11-a tube body; 12-an air bag; 2-sealing ring; 3-a filling layer; 4-voids.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1 to 6, an embodiment of the present invention provides a tunnel surrounding rock monitoring installer, which is installed in a tunnel surrounding rock drilling hole 200, where the tunnel surrounding rock drilling hole 200 includes: a first bore section 210 drilled using a first drill bit, and a second bore section 220 formed by continuous drilling at the bottom of the bore hole of the first bore section 210 using a second drill bit, the tunnel surrounding rock monitoring installation comprising: the device comprises a sleeve 1 sleeved on the outer peripheral wall of the tunnel surrounding rock monitoring rod 300, a sealing ring 2 abutting against the step surface of the tunnel surrounding rock drilling hole 200, and a filling layer 3 filled between the tunnel surrounding rock drilling hole 200 and the sleeve 1;
the tunnel surrounding rock monitoring rod 300 comprises a rod body 310 and a monitoring head 320, wherein the monitoring head 320 is arranged at the top end of the rod body 310; the monitoring head 320 penetrates through the first rock-hole section 210, so that the rod body 310 is located in the first rock-hole section 210, the monitoring head 320 is located in the second rock-hole section 220, the aperture of the first rock-hole section 210 is larger than that of the second rock-hole section 220, the outer diameter of the rod body 310 is close to that of the second rock-hole section 220, and the connection position of the rod body 310 and the monitoring head 320 is located in the second rock-hole section 220;
the length of the sleeve 1 is close to the depth of the first rock section 210, and the sleeve 1 is sleeved on the rod body 310 within the range corresponding to the first rock section 210; the bottom surface of the sleeve 1 is in contact with a sealing ring 2, and the sealing ring 2 is also in contact with a step surface at the joint of the first rock hole section 210 and the second rock hole section 220;
the sealing ring 2, the casing 1 and the first bore section 210 form a cavity therebetween, which is filled with a filler to form a filling layer 3.
The embodiment of the utility model provides an adopt sealing washer 2, sleeve pipe 1 and common fixed tunnel country rock monitoring pole 300 of filling layer 3, let tunnel country rock monitoring pole 300 and tunnel country rock drilling hole 200 large tracts of land contact to adopt the mode that pole body 310 slightly deepened second rock hole section 220 to ensure monitoring head 320 and tunnel country rock better contact under operating condition. The utility model discloses tunnel country rock monitoring erector has the advantage that the installation is swift, convenient to use.
In the above solution, please continue to refer to fig. 1 to 6, preferably, the filling layer 3 further fills the gap between the stepped surface and the sealing ring 2; the packing 2 prevents the filler of the packing layer 3 from flowing into the second bore section 220; a tiny cavity is formed among the second bore section 220, the sealing ring 2 and the rod body 310, and the tiny cavity reserves an expansion space for the monitoring head 320.
The utility model discloses during the filler pours into the cavity, the filler gets into gap between ladder face and the sealing washer 2 along the cavity, and filler shutoff gap lets sealing washer 2 and tunnel country rock in close contact with, stops tunnel country rock deformation back and produces tunnel country rock monitoring rod 300 and rocks, the embodiment of the utility model provides a prevent tunnel country rock monitoring rod 300 to take place the reason of rocking to be: rock and influence the monitoring degree of accuracy of tunnel country rock monitoring pole 300.
In the above solution, with continued reference to fig. 1 to 6, preferably the sealing ring 2 is in interference fit with the rod body 310; the rod body 310 and the monitoring head 320 are withdrawn from the sealing ring 2 and the casing 1 so that the sealing ring 2 and the casing 1 are retained in the tunnel surrounding rock drill hole 200.
The utility model discloses interference fit indicates that 2 internal diameters of sealing washer slightly are greater than pole body 310 external diameter, and sealing washer 2 can axial displacement along pole body 310. Because sealing washer 2, sleeve pipe 1 and filling layer 3 can stay in tunnel country rock drill hole 200 after the monitoring is accomplished, treat later stage centralized processing, consequently the embodiment of the utility model provides an adopt sealing washer 2 and pole body 310 interference fit, only need directly to draw and to demolish tunnel country rock monitoring pole 300 from tunnel country rock drill hole 200, it is extremely convenient to dismantle.
In the above solution, with continuing reference to fig. 1 to 6, the thickness of the filling layer 3 is preferably greater than half of the thickness of the casing 1; the thickness of the filling layer 3 is two times greater than that of the sealing ring 2; the filling layer 3 spreads to the peripheral wall of the sealing ring 2, the end face of the sleeve 1 and the step face.
The utility model discloses preferred grout of packing of filling layer 3, grout have low cost, the good advantage of mobility, are in the grout in the installation of being more convenient for. The embodiment of the utility model provides a when tunnel country rock probing hole 200 with the clearance between sleeve pipe 1 and the pore wall increase, increase grout layer thickness can realize tunnel country rock and sleeve pipe 1's fixed better.
In the above solution, please continue to refer to fig. 1 to 6, the sleeve 1 is preferably fixed to the sealing ring 2 by bonding.
The embodiment of the utility model provides an increase the bonding agent at 1 terminal surface of sleeve pipe and 2 terminal surfaces of sealing washer and let sleeve pipe 1 and sealing washer 2 fix an organic whole, more be favorable to the fixed mounting of tunnel country rock monitoring erector.
In the above solution, please continue to refer to fig. 1 to fig. 6, preferably, the tunnel surrounding rock monitoring rod 300 further includes a gas flow passage 330, the gas flow passage 330 is communicated with the monitoring head 320, and the gas flow passage 330 far away from the monitoring head 320 is located at the axial outer side of the tunnel surrounding rock drilling hole 200; the outer diameter of the gas flow path 330 is less than 1/3 of the diameter of the inner wall of the casing 1.
The embodiment of the utility model provides a run through pole body 310 with gas flow path 330 from monitoring head 320 and extend to the tunnel country rock monitoring erector outside, be more convenient for fill gassing equipment and aerify or deflate to monitoring head 320 through gas flow path 330.
In the above solution, preferably, the outer peripheral wall of the sleeve 1 is provided with a plurality of protruding rings, and the plurality of protruding rings are distributed along the axial direction of the sleeve 1; the thickness of the protruding ring is less than the thickness of the sealing ring 2.
The embodiment of the utility model provides a set up the purpose of protruding circle and let between filling layer 3 and the sleeve pipe 1 fixed more firm.
In the above solution, referring to fig. 7 to 9, preferably, the cannula 1 includes a tube 11 and an air bag 12, the air bag 12 is embedded in the wall of the tube 11, the length of the air bag 12 is close to the length of the tube 11, and the air bag 12 is deflated to increase the inner diameter of the tube 11; the balloon 12 is deflated so that there is a gap 4 between the sleeve 1 and the stem body 310.
The embodiment of the utility model provides a set up space 4's purpose and be more convenient for tunnel country rock monitoring arm 300 take sleeve pipe 1 out.
It should be noted that fig. 1 of the embodiment of the present invention is a diagram of a tunnel surrounding rock monitoring installer when the tunnel surrounding rock drill hole 200 is drawn out after the monitoring of the tunnel surrounding rock monitoring rod 300 is completed, and fig. 2 of the embodiment of the present invention is a diagram of a tunnel surrounding rock monitoring installer in a monitoring state of the tunnel surrounding rock monitoring rod 300; fig. 3 of the embodiment of the present invention is a diagram of a tunnel surrounding rock monitoring installer in a state where a tunnel surrounding rock monitoring rod 300 is installed in a tunnel surrounding rock drilling hole 200 but a monitoring head 320 is not inflated; fig. 4 of the embodiment of the present invention is a diagram of a tunnel surrounding rock monitoring installation device in a deflated state of the air bag 12 of the casing 1 before the tunnel surrounding rock drilling hole 200 is ready to be extracted after the monitoring of the tunnel surrounding rock monitoring rod 300 is completed; fig. 5 of the embodiment of the present invention is a diagram illustrating a tunnel surrounding rock drilling hole 200 drilled after a rock body 100 is finished; the utility model discloses figure 6 is tunnel surrounding rock monitoring erector graphic representation when tunnel surrounding rock drill hole 200 is taken out for tunnel surrounding rock monitoring rod 300 completion.
The utility model discloses monitoring head 320 is provided with gaseous storage chamber, and gas flow path 330 is full of gas to gaseous storage chamber, and when tunnel country rock took place to warp, tunnel country rock extrusion monitoring head 320, gaseous storage chamber took place to warp and make gaseous flow direction gas flow path 330 in the gas storage chamber. The utility model discloses tunnel country rock monitoring pole 300 monitoring principle is: the gas flow channel 330 is provided with a gas flow sensor, the gas flow sensor collects the gas flow of the monitoring head 320 flowing to the gas flow channel 330, and the host collects the deformation of the monitoring head 320, and the host determines the deformation data of the tunnel surrounding rock according to the gas flow and the deformation.
The embodiment of the utility model provides an adopt sealing washer 2, sleeve pipe 1 and the common fixed tunnel country rock monitoring pole 300 of filling layer 3, let tunnel country rock monitoring pole 300 and tunnel country rock drilling hole 200 large tracts of land contact to use sealing washer 2 can effectively block that the filler gets into second rock hole section 220 and influence the monitoring of tunnel country rock monitoring pole 300, have convenient to use's characteristics, when tunnel country rock deformation in addition the utility model discloses the filler ensures tunnel country rock monitoring pole 300 continuous contact tunnel country rock, improves the monitoring data accuracy.
The above list of detailed descriptions is only for the specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention should be included within the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (8)
1. A tunnel surrounding rock monitoring installer is installed on a tunnel surrounding rock drilling hole (200), and the tunnel surrounding rock drilling hole (200) comprises: a first bore section (210) drilled using a first drill bit, a second bore section (220) formed by continuous drilling at the bottom of the bore hole of the first bore section (210) using a second drill bit, wherein the tunnel surrounding rock monitoring installer comprises: the device comprises a sleeve (1) sleeved on the outer peripheral wall of a tunnel surrounding rock monitoring rod (300), a sealing ring (2) abutting against the step surface of a tunnel surrounding rock drilling hole (200), and a filling layer (3) filled between the tunnel surrounding rock drilling hole (200) and the sleeve (1);
the tunnel surrounding rock monitoring rod (300) comprises a rod body (310) and a monitoring head (320), wherein the monitoring head (320) is arranged at the top end of the rod body (310); the monitoring head (320) penetrates through the first rock hole section (210) to enable the rod body (310) to be located in the first rock hole section (210), the monitoring head (320) is located in the second rock hole section (220), the aperture of the first rock hole section (210) is larger than that of the second rock hole section (220), the outer diameter of the rod body (310) is close to that of the second rock hole section (220), and the connecting position of the rod body (310) and the monitoring head (320) is located in the second rock hole section (220);
the length of the sleeve (1) is close to the depth of the first rock hole section (210), and the sleeve (1) is sleeved on the rod body (310) within the range corresponding to the first rock hole section (210); the bottom surface of the sleeve (1) is in contact with the sealing ring (2), and the sealing ring (2) is also in contact with a step surface at the joint of the first rock hole section (210) and the second rock hole section (220);
and a cavity is formed among the sealing ring (2), the sleeve (1) and the first rock hole section (210), and a filling agent is filled into the cavity to form a filling layer (3).
2. A tunnel surrounding rock monitoring installer as claimed in claim 1, wherein the filling layer (3) also fills the gap between the step surface and the sealing ring (2);
the sealing ring (2) prevents the filler of the filling layer (3) from flowing into the second borehole section (220);
a tiny cavity is formed among the second rock hole section (220), the sealing ring (2) and the rod body (310).
3. A tunnel surrounding rock monitoring installer as claimed in claim 1 or 2 wherein the sealing ring (2) is an interference fit with the rod body (310);
the rod body (310) and the monitoring head (320) are drawn away from the sealing ring (2) and the casing (1), so that the sealing ring (2) and the casing (1) are retained in the tunnel surrounding rock drilling hole (200).
4. A tunnel surrounding rock monitoring installer as claimed in claim 1, characterised in that the thickness of the infill layer (3) is greater than half the thickness of the casing (1);
the thickness of the filling layer (3) is two times greater than that of the sealing ring (2);
the filling layer (3) spreads to the peripheral wall of the sealing ring (2), and between the end face of the sleeve (1) and the step face.
5. A tunnel surrounding rock monitoring installer as claimed in claim 1, wherein the sleeve (1) is adhesively secured to the sealing ring (2).
6. The tunnel surrounding rock monitoring installer as claimed in claim 1, wherein the tunnel surrounding rock monitoring rod (300) further comprises a gas flow passage (330), the gas flow passage (330) is communicated with the monitoring head (320), and the gas flow passage (330) far away from the monitoring head (320) is positioned axially outside the tunnel surrounding rock drilling hole (200);
the outer diameter of the gas flow passage (330) is less than 1/3 of the diameter of the inner wall of the sleeve (1).
7. A tunnel surrounding rock monitoring installer as claimed in claim 1, wherein the outer peripheral wall of the casing (1) is provided with a plurality of protruding rings distributed along the axial direction of the casing (1);
the thickness of the protruding ring is smaller than that of the sealing ring (2).
8. A tunnel surrounding rock monitoring installer as claimed in claim 1 or 7, characterized in that the casing (1) comprises a tube body (11) and an air bag (12) for increasing the inner diameter of the tube body (11), the air bag (12) is embedded in the wall of the tube body (11), the length of the air bag (12) is close to the length of the tube body (11);
the balloon (12) is deflated so that a gap (4) exists between the sleeve (1) and the rod body (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338577.2U CN218723956U (en) | 2022-12-14 | 2022-12-14 | Tunnel surrounding rock monitoring installer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338577.2U CN218723956U (en) | 2022-12-14 | 2022-12-14 | Tunnel surrounding rock monitoring installer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218723956U true CN218723956U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223338577.2U Active CN218723956U (en) | 2022-12-14 | 2022-12-14 | Tunnel surrounding rock monitoring installer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218723956U (en) |
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2022
- 2022-12-14 CN CN202223338577.2U patent/CN218723956U/en active Active
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