CN115127531A - Device for rapidly arranging tunnel monitoring measuring points and construction method - Google Patents
Device for rapidly arranging tunnel monitoring measuring points and construction method Download PDFInfo
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- CN115127531A CN115127531A CN202210713796.XA CN202210713796A CN115127531A CN 115127531 A CN115127531 A CN 115127531A CN 202210713796 A CN202210713796 A CN 202210713796A CN 115127531 A CN115127531 A CN 115127531A
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- reflector
- positioning shell
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 79
- 238000010276 construction Methods 0.000 title claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 238000003466 welding Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 54
- 230000001681 protective effect Effects 0.000 claims description 35
- 239000011435 rock Substances 0.000 claims description 31
- 239000004567 concrete Substances 0.000 claims description 20
- 239000011378 shotcrete Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a device for quickly arranging tunnel monitoring measuring points, which comprises a channel steel base, protection plates, a ball head positioning shell, an adjusting ball head, a base plate and a reflection sheet, wherein the protection plates are respectively welded and fixed on flange plates at two sides of the channel steel base, the ball head positioning shell is detachably connected on a web plate of the channel steel base, the adjusting ball head is rotatably connected in the ball head positioning shell, one part of a spherical surface of the adjusting ball head extends outwards out of the ball head positioning shell, the adjusting ball head extends outwards to the spherical surface and is in spot welding connection with the base plate, and the reflection sheet is adhered and connected on the base plate.
Description
Technical Field
The invention relates to the technical field of tunnel monitoring and measuring engineering, in particular to a device for quickly arranging tunnel monitoring and measuring points and a construction method.
Background
Due to the particularity and complexity of tunnel engineering and the uncertainty of surrounding rocks of the tunnel, monitoring and measuring structures such as the surrounding rocks of the tunnel, a supporting structure and the like are indispensable means for ensuring the quality and the safety of the tunnel engineering; in the tunnel excavation construction process, the purpose of arranging tunnel monitoring measurement is to perform information feedback and prediction through construction and environment monitoring, so that the construction organization design can be optimized, the site construction can be guided, and the safety and the quality of tunnel construction can be ensured; secondly, the dynamic state of the surrounding rock can be mastered, the stress state and the stress distribution of the supporting structure under different working conditions can be known, and the stability of the surrounding rock can be evaluated; and thirdly, monitoring information can verify support structure parameters and evaluate the rationality and safety of the support structure and the construction method.
In the prior art, a surrounding rock monitoring point arrangement method is that a hole is drilled at a monitoring point position manually, a base plate is positioned in the hole through an expansion bolt, a reflector is conveniently pasted on the base plate, the inclination angle position of the reflector is realized by positioning through an inclined hole in a surrounding rock, and a total station is used for periodically feeding back information of the monitoring point to master the settlement deformation condition of the monitoring point position of the tunnel surrounding rock. However, when the monitoring point is positioned by manual drilling, the following problems exist: firstly, the inclination angle of the reflector at the monitoring point position of the surrounding rock is inconvenient to adjust, and monitoring information errors are easily caused by installation and positioning errors; secondly, by installing expansion bolts in the drill holes, the positions of anchoring monitoring points of the expansion bolts in the drill holes are easy to loosen during excavation blasting construction, and further monitoring information errors can be caused; thirdly, the reflector of monitoring point position installation exposes, very easily because of falling rocks or mechanical collision damage, when the reflector was arranged to the later stage, the tunnel country rock headroom was too high, and it is big to arrange the reflector monitoring point degree of difficulty, has the potential safety hazard.
Disclosure of Invention
The invention aims to provide a device for rapidly arranging tunnel monitoring measuring points and a construction method, which are used for realizing the positioning and firm installation of surrounding rock monitoring points and reducing the problem that reflectors at the monitoring points are influenced by external factors.
The technical problem solved by the invention is as follows:
(1) the device is used for solving the problem that the inclination angle of the reflector at the position of the surrounding rock monitoring point is inconvenient to adjust;
(2) the method is used for solving the problem that the position of a monitoring point is easy to loosen during excavation and blasting construction;
(3) the reflective sheet is used for solving the problem that the exposed reflective sheet is easily damaged by falling rocks or mechanical collision.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a arrange tunnel control measuring point device fast, includes channel-section steel basement, guard plate, bulb set casing, regulation bulb, base plate and reflector panel, weld fixation guard plate respectively on the both sides flange board of channel-section steel basement, can dismantle on the web of channel-section steel basement and connect bulb set casing, bulb set casing internal rotation connection regulation bulb, the bulb set casing is outwards stretched out to some spherical surfaces of regulation bulb, and adjusts the bulb and outwards stretch out spot welding connection base plate on the spherical surface, paste on the base plate and connect the reflector panel.
As a further scheme of the invention: one plate end of the protection plate is flush with the flange plate end of the channel steel substrate, and the other plate end of the protection plate extends to the position right above the reflection sheet.
As a further scheme of the invention: a plurality of vertical holes which are communicated with each other are formed between the protection plate and the flange plate of the channel steel substrate.
As a further scheme of the invention: and a plurality of transverse holes are formed in the web plate of the channel steel substrate.
As a further scheme of the invention: the round wall of the ball head positioning shell is in threaded connection with a plurality of puller bolts, and the tail ends of the puller bolts are used for abutting against the locking adjusting ball head.
As a further scheme of the invention: the positioning disc of an integrated structure is arranged at the open end of one side, close to the channel steel base, of the ball head positioning shell, the positioning disc is in assembly connection with the channel steel base through a plurality of fastening bolts which are evenly distributed, and the tail ends of the fastening bolts are in threaded connection with check nuts respectively.
As a further scheme of the invention: baffles are symmetrically arranged on the web plate of the channel steel substrate and located on two sides of the ball head positioning shell, and a protection cavity is defined between the baffles on the two sides and the protection plates on the two sides.
As a further scheme of the invention: the protection cover can be dismantled in the protection cavity and connected.
As a further scheme of the invention: the protection casing is the one end open-ended cover body, and the open end of protection casing is inserted and is established and connect in the protection intracavity, and the cross-section of protection casing is square or circular form.
As a further scheme of the invention: a construction method for rapidly arranging a tunnel monitoring measuring point device comprises the following steps:
firstly, excavating a pouring groove with a groove steel substrate shape on the surrounding rock at the position of the monitoring point for later use;
welding and fixing protective plates on flange plates on two sides of the channel steel substrate, and vertically welding and fixing two baffles on a web plate of the channel steel substrate;
thirdly, a plurality of transverse holes are formed in a web plate of the channel steel substrate, and a plurality of vertical holes which are communicated with each other are formed between a flange plate and a protection plate of the channel steel substrate;
step four, placing the adjusting ball head into an inner cavity of the ball head positioning shell, wherein the ball head positioning shell is tightly attached to a web plate of the channel steel base, the adjusting ball head extends out of a spherical surface of the ball head positioning shell outwards to be connected with a substrate in a spot welding mode, and a reflector is adhered and connected to the substrate;
fifthly, after the reflector is installed, the channel steel base is buckled in the pouring groove, the inclination monitoring angle of the reflector is adjusted through rotation of the adjusting ball head, after the inclination monitoring angle is adjusted finely, the adjusting ball head is locked through the abutting bolt in threaded connection on the rotary ball head positioning shell, the abutting bolt abuts against the locking adjusting ball head, and the reflector at the monitoring point position is observed and an initial numerical value is recorded through the total station;
before spraying concrete, inserting a protective cover into a protective cavity defined by the baffles on the two sides and the protective plates on the two sides, and spraying concrete materials into the pouring groove at a high speed by adopting a concrete spraying method after the concrete spraying is finished, wherein the thickness of the sprayed concrete materials is not more than the width of the baffles;
and seventhly, spraying concrete materials to integrally harden the channel steel substrate and the surrounding rock, taking down the protective cover, and regularly observing a reflector at the monitoring point position through a total station and recording numerical values.
The invention has the beneficial effects that:
(1) the steel channel base is buried at a surrounding rock monitoring point, the steel channel base is assembled and connected with the ball head positioning shell through the bolts, the ball head positioning shell is connected with the adjusting ball head in a rotating mode, the adjusting ball head extends outwards to form a spherical surface and is connected with the base plate in a spot welding mode, the base plate is connected with the reflector in a sticking mode, the inclination monitoring angle of the reflector rotates along with the adjusting ball head through the base plate, the operation is convenient and efficient, the method is suitable for precision adjustment of the inclination monitoring angle of the reflector, and monitoring information errors caused by installation positioning errors can be reduced;
(2) the concrete spraying method is adopted to spray concrete slurry to the embedded channel steel substrate, so that the channel steel substrate and surrounding rock are integrally hardened, the installation is stable and firm, the monitoring point position looseness caused by blasting construction of drilling holes is avoided, meanwhile, the adjusting ball head is abutted and locked through a plurality of jacking bolts, the rotation of the adjusting ball head is limited, the stability of the adjusting position of the inclined monitoring angle of the reflector is ensured, and the monitoring information error is reduced;
(3) the reflecting sheets are supported and installed through the substrate and are exposed at the embedded monitoring point position of the surrounding rock, and the protective plates are welded and fixed on the flange plates on the two sides of the channel steel substrate respectively, so that the reflecting sheets exposed at the monitoring point position of the surrounding rock can be subjected to a safety protection effect;
(4) according to the invention, the protective plate and the baffle are welded on the channel steel substrate, and the assembled bulb positioning shell, the adjusting bulb, the substrate and the reflector can be installed on the tunnel ground in advance, so that the assembly and installation are efficient, the high-altitude operation time at the position of the tunnel surrounding rock monitoring point is favorably shortened, and the problems of risk hidden danger and limited installation space caused by high-altitude operation are reduced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a front view of a reflector assembled on a channel base according to the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is a side view of the reflector assembly of the present invention on a channel base;
FIG. 4 is a schematic view of a protective plate disposed on a channel base according to the present invention;
FIG. 5 is a top view of the fender structure of the invention;
FIG. 6 is a schematic structural view of a ball positioning housing of the present invention;
FIG. 7 is a schematic view of the protective cover with a square cross section inserted and connected in the protective cavity of the invention;
fig. 8 is a schematic view of the protective cover with a circular cross section inserted and connected in the protective cavity.
In the figure: 1. a channel steel substrate; 2. a protection plate; 3. a ball head positioning shell; 30. positioning a plate; 4. adjusting the ball head; 5. a substrate; 6. a light-reflecting sheet; 7. jacking the bolt; 8. a baffle plate; 9. a protective cavity; 10. a protective cover; 11. a transverse bore; 12. a vertical hole; 13. fastening a bolt; 14. a locknut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-8, the invention relates to a device for rapidly arranging tunnel monitoring measuring points, which comprises a channel steel substrate 1, wherein protective plates 2 are respectively welded and fixed on flange plates on two sides of the channel steel substrate 1, one plate end of each protective plate 2 is flush with the edge end of the flange plate of the channel steel substrate 1, the other plate end of each protective plate 2 extends to be right above a reflector 6, and the protective plates 2 can prevent the reflector 6 from being damaged by falling rocks or mechanical collision and perform a safety protection function on the reflector 6 exposed at the monitoring point position of surrounding rocks.
The ball head positioning shell 3 is detachably connected to a web plate of the channel steel substrate 1, a positioning disc 30 of an integrated structure is arranged at one side opening end, close to the channel steel substrate 1, of the ball head positioning shell 3, the positioning disc 30 is in assembly connection with the channel steel substrate 1 through a plurality of fastening bolts 13 which are uniformly distributed, the tail ends of the fastening bolts 13 are respectively in threaded connection with a check nut 14, the ball head positioning shell 3 is conveniently detachably connected to the channel steel substrate 1 and is stable and reliable in connection, an adjusting ball head 4 is rotatably connected in the ball head positioning shell 3, a part of spherical surface of the adjusting ball head 4 extends outwards out of the ball head positioning shell 3, the adjusting ball head 4 extends outwards out of the spherical surface and is in spot welding connection with a substrate 5, a light reflecting sheet 6 is adhered and connected to the substrate 5, the adjusting ball head 4 is limited in the ball head positioning shell 3 by rotating the adjusting ball head 4, and the inclination monitoring angle of the light reflecting sheet 6 rotates along with the adjusting ball head 4 through the substrate 5, the simple operation is high-efficient, is applicable to the precision adjustment of 6 slope monitoring angles of reflector panel, can reduce because of installation positioning error causes the monitoring information error.
Threaded connection has a plurality of puller bolts 7 on the circumference wall of bulb locating shell 3, the tail end of a plurality of puller bolts 7 is used for contradicting locking adjusting bulb 4, the back is accomplished in the slope monitoring angle regulation of reflector panel 6, avoid causing the slope monitoring angle skew of reflector panel 6 when receiving the blasting construction, conflict locking adjusting bulb 4 through a plurality of puller bolts 7, thereby the rotation of locking restriction adjusting bulb 4, thereby avoid reflector panel 6 monitoring point position skew and cause the monitoring information error.
Set up a plurality of vertical holes 12 that link up each other between the flange board of guard plate 2 and channel-section steel basement 1, a plurality of transverse holes 11 have been seted up on the web of channel-section steel basement 1, through 1 anchor of channel-section steel basement when monitoring point position, adopt the shotcrete method with 1 pre-buried at the country rock monitoring point position of channel-section steel basement, a plurality of transverse holes 11 and a plurality of vertical holes 12 offered are used for the shotcrete material to spill over and pass through, the area of contact of increase shotcrete material and channel-section steel basement 1, thereby when strengthening the shotcrete material sclerosis, the pre-buried of channel-section steel basement 1 is reliable and stable in country rock monitoring point position department.
Just be located bulb locating shell 3 bilateral symmetry on channel-section steel basement 1's the web and be provided with baffle 8, the baffle 8 of setting is used for blockking shotcrete material, avoid shotcrete material sclerosis bulb locating shell 3, and cause bulb locating shell 3 to change the maintenance inconvenient, enclose into protection chamber 9 between both sides baffle 8 and the both sides guard plate 2, can dismantle in the protection chamber 9 and connect protection casing 10, protection casing 10 is the one end open-ended cover body, the open end of protection casing 10 is inserted and is established and connect in protection chamber 9, and the cross-section of protection casing 10 is square or circular form, the protection casing 10 of setting is used for the cover to establish reflector panel 6, when channel-section steel basement 1 is buried underground to shotcrete, avoid concrete spot reflector panel 6, influence monitoring accuracy.
Example 2
Referring to fig. 1 to 8, a construction method for a device for quickly arranging tunnel monitoring and measuring points includes the following steps:
firstly, excavating a pouring groove in the shape of a channel steel substrate 1 on surrounding rocks at a determined monitoring point position for later use, wherein the arranged pouring groove is used for embedding and installing the channel steel substrate 1;
step two, the protection plates 2 are fixedly welded on the flange plates on the two sides of the channel steel substrate 1, the two baffles 8 are vertically fixedly welded on the web plate of the channel steel substrate 1, the protection plates 2 and the baffles 8 are integrally welded on the channel steel substrate 1, and the protection plates 2 are used for safely protecting the reflector 6 to prevent falling rocks or mechanical collision from damaging the reflector 6; the baffle 8 is used for blocking the flow of the sprayed concrete material, so that the ball head positioning shell 3 is prevented from being hardened by the sprayed concrete material, and the ball head positioning shell 3 is inconvenient to replace and maintain;
thirdly, a plurality of transverse holes 11 are formed in a web plate of the channel steel substrate 1, a plurality of vertical holes 12 which are communicated with each other are formed between a flange plate of the channel steel substrate 1 and the protection plate 2, the plurality of transverse holes 11 and the plurality of vertical holes 12 are formed and used for enabling sprayed concrete to overflow and pass through, and the contact area between the sprayed concrete and the channel steel substrate 1 is increased, so that when the sprayed concrete is hardened, the channel steel substrate 1 is embedded stably and reliably at a surrounding rock monitoring point;
step four, the adjusting ball head 4 is placed in an inner cavity of the ball head positioning shell 3, the ball head positioning shell 3 is tightly attached to a web plate of the channel steel base 1, the adjusting ball head 4 extends out of a spherical surface of the ball head positioning shell 3 to be connected with the substrate 5 in a spot welding mode, the substrate 5 is adhered with the reflector 6, the reflector 6 is convenient to install, the inclination monitoring angle of the reflector 6 rotates along with the adjusting ball head 4 through the substrate 5, the operation is convenient and efficient, the method is suitable for precision adjustment of the inclination monitoring angle of the reflector 6, and monitoring information errors caused by installation positioning errors can be reduced;
fifthly, after the reflector 6 is installed, the channel steel substrate 1 is buckled in the pouring groove, the inclination monitoring angle of the reflector 6 is adjusted through rotation of the adjusting ball head 4, after the inclination monitoring angle is adjusted finely, the adjusting ball head 4 is locked through the puller bolt 7 which is connected with the rotating ball head positioning shell 3 through threads, the puller bolt 7 is abutted against the locking adjusting ball head 4, and the reflector 6 at the monitoring point is observed and an initial numerical value is recorded through the total station;
before the concrete is sprayed, a connecting protective cover 10 is inserted into a protective cavity 9 enclosed between the two side baffles 8 and the two side protective plates 2, the concrete is sprayed into the casting groove at a high speed by adopting a concrete spraying method after the concrete is sprayed, the thickness of the sprayed concrete does not exceed the width of the baffles 8, the concrete is sprayed into the casting groove by a shotcrete machine, so that the channel steel substrate 1 and surrounding rocks are integrally hardened and the embedding is stable and firm, the reflective sheet 6 is covered by the protective cover 10, and when the channel steel substrate 1 is embedded by the sprayed concrete, the concrete stain reflective sheet 6 is avoided, and the monitoring accuracy is not influenced;
and seventhly, spraying concrete to integrally harden the channel steel substrate 1 and the surrounding rock, taking down the protective cover 10, and regularly observing the reflector 6 at the monitoring point position through a total station and recording the numerical value.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a arrange tunnel control measuring point device fast, includes channel-section steel basement (1), guard plate (2), bulb reference casing (3), regulation bulb (4), base plate (5) and reflector panel (6), its characterized in that, weld fixation guard plate (2) respectively on the both sides flange board of channel-section steel basement (1), can dismantle on the web of channel-section steel basement (1) and connect bulb reference casing (3), bulb reference casing (3) internal rotation connection regulation bulb (4), partly spherical surface of regulation bulb (4) outwards stretches out bulb reference casing (3), and adjusts bulb (4) and outwards stretches out on the spherical surface spot welding connection base plate (5), paste connection reflector panel (6) on base plate (5).
2. The device for rapidly arranging the tunnel monitoring measuring point according to claim 1, wherein one plate end of the protection plate (2) is flush with the edge end of the flange plate of the channel steel base (1), and the other plate end of the protection plate (2) extends to be right above the reflector (6).
3. The device for rapidly arranging the tunnel monitoring measuring points is characterized in that a plurality of vertical holes (12) which are communicated with each other are formed between the protection plate (2) and the flange plate of the channel steel base (1).
4. The device for rapidly arranging the tunnel monitoring measuring points according to claim 1, wherein a plurality of transverse holes (11) are formed in a web plate of the channel steel base (1).
5. The device for rapidly arranging the tunnel monitoring measuring point according to claim 1, wherein a plurality of tightening bolts (7) are connected to the circumferential wall of the ball positioning shell (3) in a threaded manner, and the tail ends of the tightening bolts (7) are used for abutting against and locking the adjusting ball (4).
6. The device for rapidly arranging the tunnel monitoring measuring points according to claim 1, wherein a positioning disc (30) of an integrated structure is arranged at an opening end of one side, close to the channel steel base (1), of the ball head positioning shell (3), the positioning disc (30) is in assembly connection with the channel steel base (1) through a plurality of uniformly distributed fastening bolts (13), and the tail ends of the fastening bolts (13) are respectively in threaded connection with a locknut (14).
7. The device for rapidly arranging the tunnel monitoring measuring points as claimed in claim 1, wherein baffles (8) are symmetrically arranged on the web of the channel steel substrate (1) and located on two sides of the ball head positioning shell (3), and a protective cavity (9) is defined between the baffles (8) on two sides and the protective plates (2) on two sides.
8. A rapid-deployment tunnel monitoring measuring point device according to claim 7, characterized in that a protective cover (10) is detachably connected in the protective chamber (9).
9. The rapid tunnel monitoring measuring point device according to claim 8, wherein the protective cover (10) is a cover body with an open end, the open end of the protective cover (10) is inserted into the protective cavity (9), and the cross section of the protective cover (10) is square or circular.
10. The construction method for rapidly arranging the tunnel monitoring measuring point device according to any one of claims 1 to 9, characterized by comprising the following steps:
firstly, excavating a pouring groove in the shape of a channel steel substrate (1) on surrounding rocks at a determined monitoring point position for later use;
secondly, fixedly welding guard plates (2) on flange plates on two sides of the channel steel substrate (1), and vertically welding two baffles (8) on a web plate of the channel steel substrate (1);
thirdly, a plurality of transverse holes (11) are formed in a web plate of the channel steel base (1), and a plurality of vertical holes (12) which are communicated with each other are formed between a flange plate of the channel steel base (1) and the protection plate (2);
placing the adjusting ball head (4) into an inner cavity of the ball head positioning shell (3), wherein the ball head positioning shell (3) is tightly attached to a web plate of the channel steel base (1), the adjusting ball head (4) extends out of a spherical surface of the ball head positioning shell (3) to be connected with a substrate (5) in a spot welding mode, and a light reflecting sheet (6) is adhered to the substrate (5);
fifthly, after the reflector (6) is installed, the channel steel substrate (1) is buckled in the pouring groove, the inclination monitoring angle of the reflector (6) is adjusted through rotation of the adjusting ball head (4), after the inclination monitoring angle is adjusted in a fine mode, the adjusting ball head (4) is locked through the abutting bolt (7) which is connected with the rotating ball head positioning shell (3) through threads, the abutting bolt (7) abuts against the locking adjusting ball head (4), and the reflector (6) at the monitoring point position is observed through the total station and an initial value is recorded;
inserting a connecting protective cover (10) into a protective cavity (9) enclosed between the baffles (8) on the two sides and the protective plates (2) on the two sides before spraying concrete, and spraying concrete material into the pouring groove at a high speed by adopting a concrete spraying method after the concrete spraying is finished, wherein the thickness of the sprayed concrete material is not more than the width of the baffles (8);
and seventhly, spraying concrete materials to integrally harden the channel steel substrate (1) and the surrounding rock, taking down the protective cover (10), and regularly observing the reflector (6) at the monitoring point position through a total station and recording numerical values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713796.XA CN115127531A (en) | 2022-06-22 | 2022-06-22 | Device for rapidly arranging tunnel monitoring measuring points and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713796.XA CN115127531A (en) | 2022-06-22 | 2022-06-22 | Device for rapidly arranging tunnel monitoring measuring points and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN115127531A true CN115127531A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210713796.XA Pending CN115127531A (en) | 2022-06-22 | 2022-06-22 | Device for rapidly arranging tunnel monitoring measuring points and construction method |
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| CN (1) | CN115127531A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636153A (en) * | 2012-04-25 | 2012-08-15 | 中国十七冶集团有限公司 | Observation method of crown settlement and periphery convergence of tunnel |
| CN205426168U (en) * | 2016-03-22 | 2016-08-03 | 重庆交通大学 | Subassembly is buried underground to tunnel vault settlement monitoring point |
| CN109458984A (en) * | 2018-12-12 | 2019-03-12 | 中交第二航务工程局有限公司 | Tunnel deformation real-time monitoring device and method |
| CN210893138U (en) * | 2020-01-06 | 2020-06-30 | 昆明理工大学 | Tunnel measurement reflecting device |
| CN212340262U (en) * | 2020-06-10 | 2021-01-12 | 苏州市水利工程质量检测中心有限公司 | Movable target device for measuring horizontal displacement |
-
2022
- 2022-06-22 CN CN202210713796.XA patent/CN115127531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636153A (en) * | 2012-04-25 | 2012-08-15 | 中国十七冶集团有限公司 | Observation method of crown settlement and periphery convergence of tunnel |
| CN205426168U (en) * | 2016-03-22 | 2016-08-03 | 重庆交通大学 | Subassembly is buried underground to tunnel vault settlement monitoring point |
| CN109458984A (en) * | 2018-12-12 | 2019-03-12 | 中交第二航务工程局有限公司 | Tunnel deformation real-time monitoring device and method |
| CN210893138U (en) * | 2020-01-06 | 2020-06-30 | 昆明理工大学 | Tunnel measurement reflecting device |
| CN212340262U (en) * | 2020-06-10 | 2021-01-12 | 苏州市水利工程质量检测中心有限公司 | Movable target device for measuring horizontal displacement |
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Application publication date: 20220930 |
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| RJ01 | Rejection of invention patent application after publication |