CN206618412U - Soil body settlement sensor and soil body sedimentation monitoring system - Google Patents
Soil body settlement sensor and soil body sedimentation monitoring system Download PDFInfo
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- CN206618412U CN206618412U CN201720322941.6U CN201720322941U CN206618412U CN 206618412 U CN206618412 U CN 206618412U CN 201720322941 U CN201720322941 U CN 201720322941U CN 206618412 U CN206618412 U CN 206618412U
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- sedimentation pipe
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Abstract
The utility model provides a kind of soil body settlement sensor and soil body sedimentation monitoring system.Wherein, soil body settlement sensor includes：Multiple sedimentation pipes, sedimentation pipe is provided at both ends with attachment structure, and two neighboring sedimentation pipe connected by attachment structure；Multiple sedimentation rings, the outer sheath of each sedimentation pipe is provided with a sedimentation ring；A FBG monitoring portion is provided with multiple FBG monitoring portions, each sedimentation pipe, FBG monitoring portion is connected with sedimentation ring.The utility model solve to the soil body carry out hierarchical monitor when sensor burying work beforehand amount it is big the problem of.
Description
Technical field
The utility model is related to soil monitoring technical field, in particular to a kind of soil body settlement sensor and the soil body
Sedimentation monitoring system.
Background technology
Existing settlement monitoring is generally total powerstation monitoring, hydrostatic level monitoring.
The monitoring of total powerstation needs artificial pointwise monitoring, takes time and effort, it is impossible to monitoring in real time, and monitoring accuracy is grasped with personnel
Make relevant, measurement error is big.Hydrostatic level can realize real-time monitoring, but hydrostatic level uses linker so that quiet
Power spirit level is larger, and water pipe UNICOM is needed between each monitoring point, installs inconvenience；And conventional static spirit level is supervised using electromagnetic type
Survey, error is monitored under electromagnetic interference larger.
A kind of sensor for monitoring soil body sedimentation of the prior art is supervised compared to artificial pointwise monitoring and hydrostatic level
Survey saves manpower and materials, also improves monitoring accuracy.But, when carrying out hierarchical monitor to the soil body, it is necessary to by multiple sensings
Device nuzzle respectively one by one the soil body different intervals in, burying work beforehand amount is larger.
Utility model content
Main purpose of the present utility model is to provide a kind of soil body settlement sensor and soil body sedimentation monitoring system, to solve
Certainly in the prior art to the soil body carry out hierarchical monitor when sensor burying work beforehand amount it is big the problem of.
To achieve these goals, according to one side of the present utility model, there is provided a kind of soil body settlement sensor, bag
Include：Multiple sedimentation pipes, sedimentation pipe is provided at both ends with attachment structure, and two neighboring sedimentation pipe connected by attachment structure；It is multiple
Ring is settled, the outer sheath of each sedimentation pipe is provided with a sedimentation ring；One is provided with multiple FBG monitoring portions, each sedimentation pipe
FBG monitoring portion, FBG monitoring portion is connected with sedimentation ring.
Further, attachment structure is the helicitic texture for being arranged on sedimentation pipe two ends, and two neighboring sedimentation pipe passes through screw thread
Structure is threadedly coupled.
Further, the inwall of the first end of sedimentation pipe is provided with internal thread, and the second end of sedimentation pipe is provided with lug boss,
The periphery of lug boss is provided with external screw thread, and the lug boss of a sedimentation pipe is embedded at another sedimentation inside pipe wall and screw thread connects
Connect.
Further, soil body settlement sensor also includes protection cap, and protection cap lid is located at the second end of sedimentation pipe to block
Lug boss.
Further, lug boss has the first cable-through hole, and protection cap has the second cable-through hole, the light in FBG monitoring portion
Fibre is outwards drawn by the first cable-through hole and the second cable-through hole.
Further, internal thread is provided with the inside of protection cap, lug boss is threadedly coupled with protection cap.
Further, attachment structure is the shackle member for being arranged on sedimentation pipe two ends, and two neighboring sedimentation pipe passes through shackle member
Clamping.
Further, soil body settlement sensor also includes：Connecting rod, the first end of connecting rod is threadedly coupled with sedimentation pipe；
Be in the milk anchor head, and grouting anchor head is arranged on the second end of connecting rod.
Further, the tube wall of sedimentation pipe has the sliding elongated hole extended vertically, and sliding elongated hole is two, two sliding length
Axial plane of the hole along sedimentation pipe is symmetricly set on the both sides of sedimentation pipe, and soil body settlement sensor also includes：Bar is slid, bar is slid
It is located at sliding elongated hole, and the two ends of sliding bar are connected with sedimentation ring；For the protection for preventing the soil body from entering in sedimentation pipe
Plate, protective plate blocks sliding elongated hole and is connected with sliding bar, and protective plate is moved with the movement of sliding bar.
Further, protective plate is fitted on the inwall of sedimentation pipe.
Further, each FBG monitoring portion includes：Cantilever beam, the first end of cantilever beam is connected with sedimentation pipe；Two
Fiber grating, two fiber gratings are separately positioned on the both sides up and down of cantilever beam；Spring, the first end of spring and the of cantilever beam
Two ends are connected, and the second end of spring is connected with sliding bar；Optical fiber, optical fiber is connected with fiber grating.
According to other side of the present utility model, there is provided a kind of soil body sedimentation monitoring system, including the above-mentioned soil body
Settlement sensor.
Using the technical solution of the utility model, when needing to carry out hierarchical monitor to the soil body, first multiple sedimentation pipes are led to
Cross attachment structure to be attached, then the multiple sedimentation pipes connected are together nuzzled in the soil body in advance, when the soil body of different intervals is sent out
During raw sedimentation, the sedimentation ring on each sedimentation pipe can be settled with the soil body, and it is connected heavy to be monitored by FBG monitoring portion
The settling amount for dropping ring realizes the monitoring settled to the soil body.Being connected in series by multiple sedimentation pipes can realize while monitoring the soil body not
The soil body with depth settles situation of change, compared with needing successively pre-buried sensor in the prior art, reduces burying work beforehand amount,
Improve operating efficiency.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 shows the sedimentation pipe of soil body settlement sensor in one embodiment of the present utility model, sedimentation ring and optical fiber
The annexation schematic diagram of grating monitoring portion；
Fig. 2 shows the connecting rod of soil body settlement sensor and the knot of grouting anchor head in one embodiment of the present utility model
Structure schematic diagram；
Fig. 3 shows the structural representation of the protection cap of soil body settlement sensor in one embodiment of the present utility model；
Fig. 4 shows the sectional view of an angle of the soil body settlement sensor in Fig. 1.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, sedimentation pipe；11st, lug boss；12nd, elongated hole is slid；20th, attachment structure；30th, ring is settled；40th, FBG monitoring
Portion；41st, optical fiber；42nd, cantilever beam；43rd, fiber grating；44th, spring；50th, protection cap；51st, the second cable-through hole；60th, connecting rod；
70th, be in the milk anchor head；80th, bar is slid；90th, protective plate.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is pointed out that unless otherwise specified, all technologies used in this application and scientific terminology have and the application
The identical meanings that person of an ordinary skill in the technical field is generally understood that.
In the utility model, in the case where not making opposite explanation, the noun of locality used such as " upper and lower " is typically to be directed to
For direction shown in the drawings, or on vertical, vertical or gravity direction；Similarly, for ease of understanding
And description, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the profile relative to each part in itself
It is inside and outside, but the above-mentioned noun of locality is not limited to the utility model.
Cause pre-buried work to monitor the sensor that to be nuzzled during soil body sedimentation in the different intervals of the soil body in solution technology
The problem of work amount is big, the utility model provides a kind of soil body settlement sensor and soil body sedimentation monitoring system.
Embodiment one
As shown in figure 1, the soil body settlement sensor includes multiple sedimentation pipes 10, multiple sedimentation rings 30 and multiple fiber gratings
Monitoring portion 40.Wherein, sedimentation pipe 10 is provided at both ends with attachment structure 20, and two neighboring sedimentation pipe 10 connected by attachment structure 20
Connect；The outer sheath of each sedimentation pipe 10 settles in ring 30, each sedimentation pipe 10 provided with one and is provided with a FBG monitoring portion 40,
FBG monitoring portion 40 is connected with sedimentation ring 30.
When needing to carry out hierarchical monitor to the soil body, first multiple sedimentation pipes 10 are attached by attachment structure 20, then
The multiple sedimentation pipes 10 connected are together nuzzled in the soil body in advance, when the soil body of different intervals is settled, each sedimentation pipe 10
On sedimentation ring 30 can settle with the soil body, the settling amount of connected sedimentation ring 30 is monitored by FBG monitoring portion 40
Realize the monitoring settled to the soil body.
Being connected in series by multiple sedimentation pipes 10 can realize while monitoring the soil body sedimentation change feelings of soil body different depth
Condition, compared with needing successively pre-buried sensor in the prior art, reduces burying work beforehand amount, improves operating efficiency.
Thus, can when being changed using the soil body sedimentation monitoring system monitoring soil body sedimentation with the soil body settlement sensor
To save the pre-buried time of soil body settlement sensor, operating efficiency is improved.
As shown in figure 1, attachment structure 20 is the helicitic texture for being arranged on the two ends of sedimentation pipe 10, two neighboring sedimentation pipe 10 leads to
Cross helicitic texture threaded connection.Threaded connection facilitates the connection or dismounting of two neighboring sedimentation pipe 10.Optionally, two sedimentation pipes
10 when being attached, and can increase lock washer improve the reliability of connection in junction.
Specifically, the inwall of the first end of sedimentation pipe 10 is provided with internal thread, and the second end of sedimentation pipe 10 is provided with convex
Portion 11 is played, the periphery of lug boss 11 is provided with external screw thread, and the lug boss 11 of a sedimentation pipe 10 is embedded in another sedimentation pipe 10
At inwall and it is threadedly coupled.In this manner it is possible to be needed to connect multiple sedimentation pipes 10 according to monitoring.
As shown in figure 3, soil body settlement sensor also includes protection cap 50, protection cap 50 covers the second end for being located at sedimentation pipe 10
To block lug boss 11.After the connection number of sedimentation pipe 10 meets the requirement of soil body hierarchical monitor, protection cap 50 is covered in
The lug boss 11 of the sedimentation pipe 10 of the top, to avoid mud or other debris from entering in sedimentation pipe 10.
FBG monitoring portion 40 in the utility model needs to pass variable signal after monitoring the sedimentation change of the soil body
The monitoring device of outside is delivered in order to which staff checks.
In the present embodiment, in order to realize the transmission of signal, lug boss 11 has the first cable-through hole, and protection cap 50 has the
Two cable-through holes 51, the optical fiber 41 in FBG monitoring portion 40 is outwards drawn by the first cable-through hole and the second cable-through hole 51.Draw
Optical fiber 41 by being connected with monitoring device, monitoring device is with regard to that can receive the monitoring signals in FBG monitoring portion 40.
The internal thread being engaged with the external screw thread on lug boss 11 is provided with the inner side of protection cap 50, lug boss 11 is with protecting
Protecting cover 50 is threadedly coupled.Likewise, in order to ensure the reliability of threaded connection, lock washer can be set in junction.
As shown in figure 1, soil body settlement sensor also includes connecting rod 60 and grouting anchor head 70.Wherein, the of connecting rod 60
One end is threadedly coupled with sedimentation pipe 10, and grouting anchor head 70 is arranged on the second end of connecting rod 60.
As shown in Fig. 2 when multiple sedimentation pipes 10 are connected, connecting rod 60 is connected with the sedimentation pipe 10 of bottom, be in the milk anchor head
70 are arranged on one end away from sedimentation pipe 10 of connecting rod 60.It is first heavy in soft base in the soil body during pre-buried soil body settlement sensor
Drop is drilled at monitoring point, and the depth of drilling should be through the flexible subserate layer entirely monitored.After drilling is accomplished fluently, the decentralization soil body sinks
Sensor is dropped, grouting anchor head 70 is withstood hardcore, then slip casting, soil body settlement sensor is embedded in the soil body.
Because grouting anchor head 70 withstands hardcore, the multiple sedimentation pipes 10 being connected with grouting anchor head 70 are not by flexible subserate layer
Settlement influence, the sedimentation change of flexible subserate layer is reflected by settling the change of position of the ring 30 on sedimentation pipe 10.Light
The change of position of the sedimentation ring 30 that fine grating monitoring portion 40 is monitored on sedimentation pipe 10 is exactly the absolute settlement of flexible subserate layer
Change.
As shown in figure 1, the tube wall of sedimentation pipe 10 has the sliding elongated hole 12 extended vertically, sliding elongated hole 12 is two, two
Axial plane of the individual sliding elongated hole 12 along sedimentation pipe 10 is symmetricly set on the both sides of sedimentation pipe 10.Soil body settlement sensor also includes
Slide bar 80 and protective plate 90.Sliding bar 80 is located at sliding elongated hole 12, and the two ends of sliding bar 80 connect with sedimentation ring 30
Connect；Protective plate 90 blocks sliding elongated hole 12 and is connected with sliding bar 80, to prevent mud from entering sedimentation pipe 10 from sliding elongated hole 12
It is interior.Also, protective plate 90 is moved with the movement of sliding bar 80.
Specifically, sliding bar 80 is connected with the spring 44 in FBG monitoring portion 40, when the soil body has sedimentation to change, set
It is located at position of the sedimentation ring 30 on sedimentation pipe 10 outside sedimentation pipe 10 to change, length of the sedimentation ring 30 along sedimentation pipe 10
Direction is moved, so that drive connected sliding bar 80 to move, the sliding bar 80 that FBG monitoring portion 40 is monitored
Change in location be exactly the soil body sedimentation change.Optionally, the length of sliding elongated hole 12 can be according to the excursion of soil body settling amount
It is adjusted.Sliding bar 80 is horizontally through protective plate 90 and is located at the middle position of protective plate 90, and protective plate 90
Length is not less than the length of sliding elongated hole 12, and protective plate 90 can shelter from cunning during ensuring that sliding bar 80 is moved to extreme position
Move elongated hole 12.
Optionally, protective plate 90 is fitted on the inwall of sedimentation pipe 10.When sedimentation pipe 10 is cylinder, protective plate 90 can
For arc, in the present embodiment, as shown in figure 4, protective plate is the cylinder coaxial with sedimentation pipe 10.So, protective plate can be made
The inwall of 90 laminating sedimentation pipes 10 prevents from preventing mud from from sliding elongated hole 12 entering in sedimentation pipe 10.
As shown in figure 1, each FBG monitoring portion 40 includes cantilever beam 42, two fiber gratings 43, spring 44 and optical fiber
41.The first end of cantilever beam 42 is connected with sedimentation pipe 10；Two fiber gratings 43 are separately positioned on the both sides up and down of cantilever beam 42；
The first end of spring 44 is connected with the second end of cantilever beam 42, and the second end of spring 44 is connected with sliding bar 80；Optical fiber 41 and light
Fine grating 43 is connected.Spring 44 is stretched under gravity of the sedimentation ring 30 with sliding bar 80, pulling force of the cantilever beam 42 by spring 44
Decurvation is acted on, now, two fiber gratings 43 are acted on by external force.When sedimentation change occurs for the soil body sliding bar 80 is existed
Sedimentation pipe 10 is moved, and the deformation quantity of spring 44 changes, and then changes the amount of bow for the cantilever beam 42 being connected with spring 44,
External force suffered by two fiber gratings 43 changes and causes wave length shift, and optical fiber 41 is by the wave length shift of each fiber grating 43
Signal feeds back to monitoring device, and the change for the signal that staff is received by monitoring device just can know that the sedimentation of the soil body becomes
Change.
It should be noted that due to causing the factor that grating wavelength drifts about to also have the change of temperature except the change of power,
The upper and lower both sides of cantilever beam 42 respectively set a fiber grating 43, can eliminate influence of the temperature change to grating wavelength.
Embodiment two
Difference with embodiment one is that the attachment structure 20 in embodiment two is to be arranged on the clamping at the two ends of sedimentation pipe 10
Part, two neighboring sedimentation pipe 10 passes through shackle member clamping.Shackle member clamping can also play be easy to the connections of two sedimentation pipes 10 with
The effect of dismounting.Optionally, shackle member can be yoke configurations.
As can be seen from the above description, the utility model the above embodiments realize following technique effect：
Being connected in series by multiple sedimentation pipes 10 can realize while monitoring the soil body sedimentation change feelings of soil body different depth
Condition, compared with needing successively pre-buried sensor in the prior art, reduces burying work beforehand amount, improves operating efficiency.
Thus, can when being changed using the soil body sedimentation monitoring system monitoring soil body sedimentation with the soil body settlement sensor
To save the pre-buried time of soil body settlement sensor, operating efficiency is improved.
Obviously, above-mentioned described embodiment is only the embodiment of the utility model part, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, should all belong to the scope of the utility model protection.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein
Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Covering is non-exclusive to be included, for example, containing process, method, system, product or the equipment of series of steps or unit need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
Product or the intrinsic other steps of equipment or unit.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (12)
1. a kind of soil body settlement sensor, it is characterised in that including：
Multiple sedimentation pipes (10), the sedimentation pipe (10) is provided at both ends with attachment structure (20), the two neighboring sedimentation pipe
(10) connected by the attachment structure (20)；
Multiple sedimentation rings (30), the outer sheath of each sedimentation pipe (10) is provided with a sedimentation ring (30)；
A FBG monitoring portion is provided with multiple FBG monitoring portions (40), each sedimentation pipe (10)
(40), the FBG monitoring portion (40) is connected with the sedimentation ring (30).
2. soil body settlement sensor according to claim 1, it is characterised in that the attachment structure (20) is is arranged on
The helicitic texture at sedimentation pipe (10) two ends is stated, the two neighboring sedimentation pipe (10) is threadedly coupled by the helicitic texture.
3. soil body settlement sensor according to claim 2, it is characterised in that the first end of the sedimentation pipe (10) it is interior
Wall is provided with internal thread, and the second end of the sedimentation pipe (10) is provided with lug boss (11), and the periphery of the lug boss (11) is set
External screw thread is equipped with, the lug boss (11) of a sedimentation pipe (10) is embedded at another sedimentation pipe (10) inwall and spiral shell
Line is connected.
4. soil body settlement sensor according to claim 3, it is characterised in that the soil body settlement sensor also includes protecting
Protecting cover (50), protection cap (50) lid is located at the second end of the sedimentation pipe (10) to block the lug boss (11).
5. soil body settlement sensor according to claim 4, it is characterised in that the lug boss (11) has first to cross line
Hole, the protection cap (50) has the second cable-through hole (51), and the optical fiber (41) of the FBG monitoring portion (40) is by described
First cable-through hole and second cable-through hole (51) are outwards drawn.
6. soil body settlement sensor according to claim 4, it is characterised in that be provided with the inside of the protection cap (50)
Internal thread, the lug boss (11) is threadedly coupled with the protection cap (50).
7. soil body settlement sensor according to claim 1, it is characterised in that the attachment structure (20) is is arranged on
The shackle member at sedimentation pipe (10) two ends is stated, the two neighboring sedimentation pipe (10) passes through the shackle member clamping.
8. soil body settlement sensor according to claim 1, it is characterised in that the soil body settlement sensor also includes：
Connecting rod (60), the first end of the connecting rod (60) is threadedly coupled with the sedimentation pipe (10)；
Be in the milk anchor head (70), and the grouting anchor head (70) is arranged on the second end of the connecting rod (60).
9. soil body settlement sensor according to claim 1, it is characterised in that the tube wall of the sedimentation pipe (10) has perpendicular
The sliding elongated hole (12) directly extended, the sliding elongated hole (12) is two, and two elongated holes (12) that slide are along the sedimentation pipe
(10) axial plane is symmetricly set on the both sides of the sedimentation pipe (10), and the soil body settlement sensor also includes：
Bar (80) is slid, the sliding bar (80) is located in described sliding elongated hole (12) place, and the two ends of the sliding bar (80)
It is connected with the sedimentation ring (30)；
For the protective plate (90) for preventing the soil body from entering in the sedimentation pipe (10), the protective plate (90) blocks the sliding length
Hole (12) is simultaneously connected, and the protective plate (90) is moved with the movement of the sliding bar (80) with the sliding bar (80).
10. soil body settlement sensor according to claim 9, it is characterised in that the protective plate (90) is fitted in described
On the inwall of sedimentation pipe (10).
11. soil body settlement sensor according to claim 9, it is characterised in that each FBG monitoring portion (40)
Including：
Cantilever beam (42), the first end of the cantilever beam (42) is connected with the sedimentation pipe (10)；
Two fiber gratings (43), two fiber gratings (43) are separately positioned on the both sides up and down of the cantilever beam (42)；
Spring (44), the first end of the spring (44) is connected with the second end of the cantilever beam (42), the spring (44)
Second end is connected with the sliding bar (80)；
Optical fiber (41), the optical fiber (41) is connected with the fiber grating (43).
12. a kind of soil body sedimentation monitoring system, it is characterised in that sunk including the soil body any one of claim 1 to 11
Sensor drops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322941.6U CN206618412U (en) | 2017-03-29 | 2017-03-29 | Soil body settlement sensor and soil body sedimentation monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322941.6U CN206618412U (en) | 2017-03-29 | 2017-03-29 | Soil body settlement sensor and soil body sedimentation monitoring system |
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| Publication Number | Publication Date |
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| CN206618412U true CN206618412U (en) | 2017-11-07 |
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ID=60234719
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| CN201720322941.6U Active CN206618412U (en) | 2017-03-29 | 2017-03-29 | Soil body settlement sensor and soil body sedimentation monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918323A (en) * | 2017-03-29 | 2017-07-04 | 中铁十四局集团有限公司 | Soil body settlement sensor and soil body sedimentation monitoring system |
| CN108168510A (en) * | 2017-12-18 | 2018-06-15 | 河海大学 | Subgrade settlement DEFORMATION MONITORING SYSTEM and its installation method based on fiber grating |
| CN109520471A (en) * | 2018-12-12 | 2019-03-26 | 石家庄铁道大学 | Optical fiber single hole deep soil settlement survey device and its monitoring method |
-
2017
- 2017-03-29 CN CN201720322941.6U patent/CN206618412U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918323A (en) * | 2017-03-29 | 2017-07-04 | 中铁十四局集团有限公司 | Soil body settlement sensor and soil body sedimentation monitoring system |
| CN108168510A (en) * | 2017-12-18 | 2018-06-15 | 河海大学 | Subgrade settlement DEFORMATION MONITORING SYSTEM and its installation method based on fiber grating |
| CN109520471A (en) * | 2018-12-12 | 2019-03-26 | 石家庄铁道大学 | Optical fiber single hole deep soil settlement survey device and its monitoring method |
| CN109520471B (en) * | 2018-12-12 | 2023-09-19 | 石家庄铁道大学 | Optical fiber single-hole layered settlement monitoring device and monitoring method thereof |
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Effective date of registration: 20180418 Address after: Lixia District, Shandong city of Ji'nan province 250101 Olympic road No. 2666, building A, railway construction Co-patentee after: China Railway fourteen bureau group big Shield Construction Engineering Co., Ltd. Patentee after: China Railway Shisiju Group Corporation Address before: 250000 A building, 2666 iron tower, 2666 Austrian West Road, Lixia District, Ji'nan, Shandong Patentee before: China Railway Shisiju Group Corporation |