CN208568650U - Earth tunnel country rock moisture content monitoring device - Google Patents
Earth tunnel country rock moisture content monitoring device Download PDFInfo
- Publication number
- CN208568650U CN208568650U CN201821030231.7U CN201821030231U CN208568650U CN 208568650 U CN208568650 U CN 208568650U CN 201821030231 U CN201821030231 U CN 201821030231U CN 208568650 U CN208568650 U CN 208568650U
- Authority
- CN
- China
- Prior art keywords
- protection pipe
- country rock
- moisture content
- monitoring device
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of earth tunnel country rock moisture content monitoring devices; including barrel-shaped protection pipe; moisture transducer is equipped in protection pipe; one end of moisture transducer and more moisture transducer probes is affixed, and the bottom plate that the other end of the more moisture transducer probes both passes through protection pipe stretches out outside protection pipe；One end of moisture transducer and lead is affixed, and the other end of lead stretches out outside protection pipe；Obturator is filled in protection pipe, the open end of protection pipe is equipped with protection pipe lid.The monitoring device can be embedded in country rock with the excavation in tunnel, the signal wire of tunnel surrounding moisture content monitoring device be then transmitted through lining cutting lead in cavern to facilitate acquisition data, can be used for continuously monitor constructing tunnel in, construction after and operation the phase country rock moisture content state.
Description
Technical field
The utility model belongs to loess tunnel and builds technical field, is related to a kind of moisture content monitoring device, especially a kind of
Monitoring device for earth tunnel country rock water-cut variation feature.It is aqueous that the monitoring device can also be used in roadbed, soil-slope
Rate variation characteristic automatically analyzing and monitoring.
Background technique
High-speed railway is limited when passing through loess tableland by landform and erect-position is controlled, and route need to be with the formal plateau in tunnel, lower plateau
Pass through.The ground surface of loess tableland is flat open, and in the low formal distribution of intermediate high surrounding, plateau side height difference is big, and cheuch stands in great numbers, fragmented
It is broken, unfavorable geology development.Sleet precipitation is mainly the recharge of ground water source of loess tableland, and rainwater is by above covering mid Pleistocene series Huang
It is seeped under soil layer to the high paleosol layer of the sticky content that underlies and calcareous concretion layer, and accumulates in the layer soil body top, from plateau center
To plateau side perimetric penetration and migration.
When Tunnel Passing Loess Tableland, and pass through soft plastic loess interlayer band, paleosol layer, high-moisture percentage with being difficult to avoid that yellow
When soil layer, red clay expansion stratum and long paragraph different lithology contact band, it will change that original stratum is aqueous and subsurface flow is special
Sign often results in the country rock feature in constructing tunnel, after construction and changes, different degrees of substrate pucking is caused to deform, serve as a contrast
Build percolating water, even occur surrouding rock deformation invade limit etc. serious conditions, significantly increase tunnel support structure changes difficulty,
Increase tunnel later period operations risks.
Therefore, variation monitoring and the evaluation of country rock moisture content and level of ground water are paid much attention in the tunneling of Loess Tableland,
Currently used method has: 1) in tunnel excavation, sampling in fresh face and carry out water ratio test；2) in tunnel main track and
WATER LEVEL CHANGES monitoring well is beaten in two sides, and the front and back of record construction in real time WATER LEVEL CHANGES situation；3) construction is recorded and analyzed
Phase tunnel excavation water yield situation of change；4) tightly measurement and the inhomogeneous deformation in monitoring tunnel and camber strain strain.
There is discontinuous disadvantages for the above water-cut variation monitoring and evaluation method.
Summary of the invention
The purpose of the utility model is to provide a kind of monitoring devices of earth tunnel country rock water-cut variation feature, solve
Problems of the prior art.
To achieve the above object, the technical scheme adopted by the utility model is a kind of earth tunnel country rock moisture content is supervised
Device is surveyed, including barrel-shaped protection pipe, is equipped with moisture transducer, moisture transducer and more moisture transducer probes in protection pipe
One end it is affixed, the other end of the more moisture transducer probes both pass through protection pipe bottom plate stretch out protection pipe outside；Moisture passes
One end of sensor and lead is affixed, and the other end of lead stretches out outside protection pipe；Obturator is filled in protection pipe, protection pipe is opened
Mouth end is equipped with protection pipe lid.
The utility model country rock moisture content monitoring device is the high standards built from tunnel Railway Tunnel,
It is developed around country rock moisture content actual monitoring demand.It can be embedded in country rock with the excavation in tunnel, tunnel surrounding moisture content
The signal wire of monitoring device is then transmitted through lining cutting and leads in cavern to facilitate acquisition data.The monitoring device can be used for continuously monitoring
In constructing tunnel, construction after and operation the phase country rock moisture content state.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model country rock moisture content monitoring device.
In figure: 1. moisture transducer probes, 2. moisture transducers, 3. leads, 4. pilot protection casings, 5. protection pipes, 6.
Obturator, 7. protection pipe lids.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model country rock moisture content monitoring device is set in protection pipe 5 including barrel-shaped protection pipe 5
There is moisture transducer 2, moisture transducer 2 and one end of more moisture transducer probes 1 are affixed, the more moisture transducer probes
The bottom plate that 1 other end both passes through protection pipe 5 stretches out outside protection pipe 5；Pilot protection casing 4 is installed on the side wall of protection pipe 5,
One end of pilot protection casing 4 is protruded into protection pipe 5, and the other end of pilot protection casing 4 is located at outside protection pipe 5；Moisture sensing
Device 2 and one end of lead 3 are affixed, and the other end of lead 3 passes through pilot protection casing 4 and stretches out outside protection pipe 5；It is filled out in protection pipe 5
Filled with obturator 6, the open end of protection pipe 5 is equipped with protection pipe lid 7.
Moisture transducer probe 1 is metal material, has certain rigidity and anti-corrosive properties, is the direct sense of country rock moisture content
Answer component.
Lead 3 is data transfer component, has anti-corrosive properties and ductility.
Pilot protection casing 4 plays protection lead 3 using having the material of flexibility, anti-corrosive properties and ductility to be made
Effect.
The use of the utility model country rock moisture content monitoring device: after tunnel tunnel face excavation and before a lining performs,
The country rock moisture content monitoring device is installed in tunnel surrounding, i.e., after drilling on country rock, which is put
Enter in the preexisting hole, by moisture transducer probe 1 be inserted into the country rock soil body in, by lead 3 be fixed on tunnel surrounding and and arch
It is parallel, lead 3 is led to inside cavern respectively in a lining and two linings perform, is connected with data terminal.Later, using special
The normal work of the monitoring device function is checked with instrument, and acquires primary data.
Moisture transducer probe 1 incudes the moisture content of the country rock soil body between several moisture transducer probes 1, generates corresponding
Dielectric constant, and the dielectric constant is transferred to moisture transducer 2, moisture transducer 2 acquires what moisture transducer probe 1 transmitted
Dielectric constant, and the dielectric constant received is converted into country rock moisture content, it is converted into country rock moisture content and passes through lead 3 from tunnel
One lining, two linings are led in cavern, are transferred to data terminal.The tunnel surrounding moisture content monitoring device can be used for continuously monitoring tunnel
Road construction in, construction after and operation the phase country rock moisture content state, have the characteristics that practical, safe and reliable.
Obturator 6 using Bituminous hemp fiber flexible or carbon fiber wire etc., play protect moisture transducer 2 in construction not by
The effects of falling off, loosen, and not solidified by gunite concrete.
Protection pipe 5 is rigid plastics casing, plays the effects of protecting moisture transducer 2 not fallen off, loosened.
It is pasted with reflective protective film on the end outer wall of protection pipe lid 7, plays and is warned in construction without protecting by breakage in installation
Card concrete cannot be injected into 5 inside of protection pipe and solidify each component.
Claims (4)
1. a kind of earth tunnel country rock moisture content monitoring device is equipped with moisture in protection pipe (5) including barrel-shaped protection pipe (5)
Sensor (2), which is characterized in that moisture transducer (2) and one end of more moisture transducer probes (1) are affixed, the more water
The bottom plate that the other end of sub-sensor probe (1) both passes through protection pipe (5) stretches out protection pipe (5) outside；Moisture transducer (2) with draw
One end of line (3) is affixed, and the other end of lead (3) stretches out protection pipe (5) outside；Obturator (6) are filled in protection pipe (5), are protected
The open end of pillar (5) is equipped with protection pipe lid (7).
2. earth tunnel country rock moisture content monitoring device according to claim 1, which is characterized in that the protection pipe (5)
Side wall on be equipped with using have flexibility, anti-corrosive properties and ductility material made of pilot protection casing (4), lead protect
One end of protecting pipe (4) is protruded into protection pipe (5), and the other end of pilot protection casing (4) is located at protection pipe (5) outside, lead (3)
The other end pass through pilot protection casing (4) stretch out protection pipe (5) outside.
3. earth tunnel country rock moisture content monitoring device according to claim 1 or 2, which is characterized in that the protection
Manage the obturator (6) formed in (5) filled with Bituminous hemp fiber flexible or carbon fiber wire.
4. earth tunnel country rock moisture content monitoring device according to claim 1, which is characterized in that the protection pipe lid
(7) reflective protective film is pasted on end outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821030231.7U CN208568650U (en) | 2018-07-02 | 2018-07-02 | Earth tunnel country rock moisture content monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821030231.7U CN208568650U (en) | 2018-07-02 | 2018-07-02 | Earth tunnel country rock moisture content monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208568650U true CN208568650U (en) | 2019-03-01 |
Family
ID=65489896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821030231.7U Active CN208568650U (en) | 2018-07-02 | 2018-07-02 | Earth tunnel country rock moisture content monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208568650U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962000A (en) * | 2022-12-12 | 2023-04-14 | 中铁西北科学研究院有限公司 | Sleeve valve type negative pressure moisture absorption system capable of controlling deformation of swelling rock tunnel bottom drum |
| CN116660328A (en) * | 2023-07-26 | 2023-08-29 | 中国地质大学（北京） | Method and device for obtaining rock volume water content through rock dielectric constant |
-
2018
- 2018-07-02 CN CN201821030231.7U patent/CN208568650U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962000A (en) * | 2022-12-12 | 2023-04-14 | 中铁西北科学研究院有限公司 | Sleeve valve type negative pressure moisture absorption system capable of controlling deformation of swelling rock tunnel bottom drum |
| CN115962000B (en) * | 2022-12-12 | 2023-09-19 | 中铁西北科学研究院有限公司 | Sleeve valve type negative pressure moisture absorption system capable of controlling deformation of bottom drum of expanded rock tunnel |
| CN116660328A (en) * | 2023-07-26 | 2023-08-29 | 中国地质大学（北京） | Method and device for obtaining rock volume water content through rock dielectric constant |
| CN116660328B (en) * | 2023-07-26 | 2023-10-20 | 中国地质大学（北京） | Method and device for obtaining rock volume water content through rock dielectric constant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101487249B (en) | Embedding apparatus and method for earth pressure box | |
| CN107387166A (en) | Stope coal seam plate destructing depth real-time system for monitoring and pre-warning and method | |
| CN204060705U (en) | The real-time Weighing mechanism of shield-tunneling construction dregs | |
| CN107525557B (en) | A kind of accurate method for measuring coal mine underground reservoir capacity | |
| CN103438820A (en) | Borehole profile rock and soil mass layered deformation optical fiber measuring method | |
| CN102787616A (en) | Burying method of inclination measuring pipes in soil body | |
| CN105318824B (en) | A kind of method that wall rock loosening ring is measured based on distributed resistance foil gauge | |
| CN208568650U (en) | Earth tunnel country rock moisture content monitoring device | |
| CN107144377B (en) | A kind of soil pressure testing device | |
| CN102997886A (en) | Monitoring method for remotely measuring and controlling damage depths of floor strata | |
| CN104596405A (en) | Real-time deformation contact monitoring device and method of underground rainfall-sewage pipeline | |
| CN106153862A (en) | Slurry shield model test mudcake thickness real-time determining device and assay method | |
| CN103900514A (en) | Multi-point displacement meter installation and automatic data collection method of steeply inclined seam roadway | |
| CN108225265A (en) | A kind of soft soil roadbed deformation remote comprehensive monitoring system and installation method | |
| Gray | Reservoir engineering in coal seams: Part 2—Observations of gas movement in coal seams | |
| CN201334678Y (en) | Soil pressure cell inbuilt device | |
| CN113447074B (en) | High and cold region well wall deformation state identification method based on distributed optical fiber technology | |
| CN106494460A (en) | The high ferro subgrade stability method for early warning in Strong tremor region | |
| CN207335689U (en) | It is a kind of to be suitable for having semi-rigid or rigid structural layer road foundation settlement monitoring sensor | |
| CN106761804A (en) | One kind is equipped on TBM advanced hydraulic pressure detection device and method in real time | |
| CN102677645B (en) | Multi-field coupling real-time sensing method for horizontal frozen soil | |
| CN106643630A (en) | System and method of monitoring stability during gob-side entry retaining filling body stoping period | |
| CN201857953U (en) | Advanced abutment pressure monitoring device on coal face | |
| CN102817605A (en) | Method for accurately measuring elevation of drilling point in subterranean drilling | |
| CN107478570A (en) | A kind of shield tail grease pressure resistant testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |