CN103925004B - A kind of deformation of the surrounding rock in tunnel accurate monitoring method - Google Patents
A kind of deformation of the surrounding rock in tunnel accurate monitoring method Download PDFInfo
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- CN103925004B CN103925004B CN201410076041.9A CN201410076041A CN103925004B CN 103925004 B CN103925004 B CN 103925004B CN 201410076041 A CN201410076041 A CN 201410076041A CN 103925004 B CN103925004 B CN 103925004B
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Abstract
The present invention relates to a kind of deformation of the surrounding rock in tunnel accurate monitoring method, the method is by arranging the deformation failure situation of many group displacement measuring points monitoring country rock different depth position at roadway surrounding rock bore inner, adopt easy molten drilling pipe to be sent into by multiple sensor probe hole and be fixed on borehole wall, multiple sensor probe shares a shift scale, the absolute displacement of each sensor probe of real time record, and then the distortion of reflection country rock different depth position; Its easy molten drilling pipe has some strength, and is easily dissolved by organic solvent, and middle part is connected with organic solvent conduit, and top is provided with brill tooth, and be convenient to fully stir Anchor Agent, bottom is provided with sealing of hole card, and sealing of hole card bottom is provided with nut.The method can realize the on-the-spot precision monitor of deformation of the surrounding rock in tunnel, for the monitoring that becomes more meticulous of deformation of the surrounding rock in tunnel rule provides technical support.
Description
Technical field
The invention belongs to deformation of the surrounding rock in tunnel monitoring field, relate to a kind of by holing at roadway surrounding rock specifically, multiple sensor probe is evenly arranged in borehole wall, multiple sensor probe shares a shift scale, and the absolute displacement of each sensor probe of real time record realizes the method for the on-the-spot precision monitor of deformation of the surrounding rock in tunnel.
Background technology
Along with the complexity of the continuous increase geological conditions in addition of the pit mining degree of depth, mining rate, roadway surrounding rock destroys seriously, supporting is difficult, roof fall accident also increases thereupon, and the failure and deformation of surrounding rocks rule grasping this type of tunnel is in detail the prerequisite and the key that solve problems.The research great majority of current deformation of the surrounding rock in tunnel rule concentrate on Computer Numerical Simulation and laboratory resemble simulation test, due to the otherness of simulated experiment and field condition, cause result of study reliability more weak, and the work place study of deformation of the surrounding rock in tunnel rule is limited by monitoring means, the means of many employing many basic points country rock deep soils, the degree that becomes more meticulous is inadequate, and arranges that many group basic point connecting line difficulty are comparatively large, and operability is poor.The invention provides a kind of deformation of the surrounding rock in tunnel accurate monitoring method, hole at roadway surrounding rock, multiple sensor probe is evenly arranged in borehole wall, multiple sensor probe shares a shift scale, the on-the-spot precision monitor of deformation of the surrounding rock in tunnel can be realized, for the monitoring that becomes more meticulous of deformation of the surrounding rock in tunnel rule provides technical support.
Summary of the invention
The object of this invention is to provide a kind of deformation of the surrounding rock in tunnel accurate monitoring method, the method is by holing at roadway surrounding rock, multiple sensor probe is evenly arranged in borehole wall, multiple sensor probe shares a shift scale, the absolute displacement of each sensor probe of real time record, and then the distortion of reflection country rock different depth position, the on-the-spot precision monitor of deformation of the surrounding rock in tunnel can be realized.
The technical solution adopted for the present invention to solve the technical problems is: a kind of deformation of the surrounding rock in tunnel accurate monitoring method, by arranging the deformation failure situation of many group displacement measuring points monitoring country rock different depth position at roadway surrounding rock bore inner, adopt easy molten drilling pipe to be sent into by multiple sensor probe hole and be fixed on borehole wall, multiple sensor probe shares a shift scale, shift scale and sensor probe can use grating scale, magnetic railings ruler, appearance grid chi etc. and corresponding sensor probe thereof, the absolute displacement of each sensor probe of real time record, and then the distortion of reflection country rock different depth position, record data transfer to secondary meter respectively, carry out storage and display in real time.Before installing, multiple sensor probe and shift scale are fixed on easy molten drilling pipe, easy molten drilling pipe is provided with multiple hole slot, the corresponding sensor probe of each hole slot, outside sensor, one side exposes, during installation, drive easy molten drilling pipe to stir Anchor Agent by jumbolter, make Anchor Agent enrich the gap of holing and between easy molten drilling pipe, and then make sensor probe be bonded in borehole wall.
A kind of deformation of the surrounding rock in tunnel accurate monitoring method, its easy molten drilling pipe has when some strength ensures to install not damaged, and is easily dissolved by organic solvent, remove after convenient installation, ensure the normal work of whole displacement monitor, middle part is connected with organic solvent conduit, and conduit passes at the bottom of hole.Top is provided with brill tooth, is convenient to fully stir Anchor Agent, and bottom is provided with sealing of hole card, and when avoiding dissolving easy molten drilling pipe, organic solvent exposes, and sealing of hole card bottom is provided with nut, is convenient to be connected with jumbolter mixer.Outside sensor probe, one side is zigzag matsurface simultaneously, and increase the contact area of sensor probe and Anchor Agent, when guaranteeing surrouding rock deformation, sensor probe is anchored on country rock surface.
Beneficial effect of the present invention: this kind of deformation of the surrounding rock in tunnel accurate monitoring method, can need to arrange a sensor probe in country rock deep every certain position according to precision, achieve the monitoring that becomes more meticulous of surrouding rock deformation.Adopt multiple sensor probe to share a shift scale simultaneously, each like this sensor probe can think that independently device is to record data, the absolute displacement of each sensor probe of real time record, and then the distortion of reflection country rock different depth position, avoid the problem that each basic point connecting line of conventional many basic points displacement monitor disturbs mutually, ensure that the reliability of monitored data.It says that easy the to be molten drilling pipe adopted is rational in infrastructure, easy for installation, ensure that the reliability service of whole system for monitoring displacement.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, wherein.
Fig. 1 is deformation of the surrounding rock in tunnel precision monitor system fixation principle figure.
Fig. 2 is deformation of the surrounding rock in tunnel accurate monitoring method overall plan schematic diagram.
Fig. 3 is the overall sectional drawing figure of easy molten drilling pipe and system for monitoring displacement.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, the present invention will be described for Fig. 3, a kind of deformation of the surrounding rock in tunnel accurate monitoring method, by the deformation failure situation of 6 internal placement many groups displacement measuring points monitoring country rock different depth position of holing at roadway surrounding rock, easy molten drilling pipe 13 is adopted multiple sensor probe 1 to be sent into boring 6 and is fixed on boring 6 hole wall, multiple sensor probe 1 shares a shift scale 2, each like this sensor probe can think that independently device is to record data, ensure the reliability of monitored data, shift scale and sensor probe can use grating scale, magnetic railings ruler, appearance grid chi etc. and corresponding sensor probe thereof, the absolute displacement of each sensor probe 1 of real time record, and then the distortion of reflection country rock different depth position, record data transfer to secondary meter 5 respectively, carry out storage and display in real time, achieve the monitoring that becomes more meticulous of surrouding rock deformation.Before installing, multiple sensor probe 1 is fixed on easy molten drilling pipe 13 with shift scale 2, easy molten drilling pipe 13 is provided with multiple hole slot, the corresponding sensor probe 1 of each hole slot, outside sensor, one side exposes, during installation, drive easy molten drilling pipe 13 to stir Anchor Agent 12 by jumbolter, make Anchor Agent enrich gap between boring 6 and easy molten drilling pipe 13, and then make sensor probe 1 be bonded in boring 6 hole wall.Its easy molten drilling pipe 13 has when some strength ensures to install not damaged, and is easily dissolved by organic solvent, and remove after convenient installation, ensure the normal work of whole displacement monitor, middle part is connected with organic solvent conduit 10, and conduit passes at the bottom of hole.Top is provided with bores tooth 11, and be convenient to fully stir Anchor Agent 12, bottom is provided with sealing of hole card 8, and when avoiding dissolving easy molten drilling pipe, organic solvent exposes, and sealing of hole card 8 bottom is provided with nut 9, is convenient to be connected with jumbolter mixer.Outside sensor probe 1, one side is zigzag matsurface 7 simultaneously, and increase the contact area of sensor probe 1 and Anchor Agent 12, when guaranteeing surrouding rock deformation, sensor probe 1 is anchored on country rock surface, ensures the accuracy of monitored data.
Claims (3)
1. a deformation of the surrounding rock in tunnel accurate monitoring method, by arranging the deformation failure situation of many group displacement measuring points monitoring country rock different depth position at roadway surrounding rock bore inner, it is characterized in that adopting easy molten drilling pipe to be sent into by multiple sensor probe holes and be fixed on borehole wall, multiple sensor probe shares a shift scale, the absolute displacement of each sensor probe of real time record, and then the distortion of reflection country rock different depth position, its easy molten drilling pipe has some strength, and easily dissolved by organic solvent, middle part is connected with organic solvent conduit, top is provided with brill tooth, be convenient to fully stir Anchor Agent, bottom is provided with sealing of hole card, when avoiding dissolving easy molten drilling pipe, organic solvent exposes, sealing of hole card bottom is provided with nut, be convenient to be connected with jumbolter mixer.
2. a kind of deformation of the surrounding rock in tunnel accurate monitoring method according to claim 1, multiple sensor probe and shift scale is it is characterized in that to be fixed on easy molten drilling pipe, easy molten drilling pipe is provided with multiple hole slot, the corresponding sensor probe of each hole slot, outside sensor, one side exposes, and during installation, drives easy molten drilling pipe to stir Anchor Agent by jumbolter, make Anchor Agent enrich the gap of holing and between easy molten drilling pipe, and then make sensor probe be bonded in borehole wall.
3. a kind of deformation of the surrounding rock in tunnel accurate monitoring method according to claim 1, is characterized in that outside sensor probe, one side is zigzag matsurface, increases the contact area of sensor probe and Anchor Agent.
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CN201410076041.9A CN103925004B (en) | 2014-03-04 | 2014-03-04 | A kind of deformation of the surrounding rock in tunnel accurate monitoring method |
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CN201410076041.9A CN103925004B (en) | 2014-03-04 | 2014-03-04 | A kind of deformation of the surrounding rock in tunnel accurate monitoring method |
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CN103925004A CN103925004A (en) | 2014-07-16 |
CN103925004B true CN103925004B (en) | 2016-01-06 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019172753A1 (en) * | 2018-03-06 | 2019-09-12 | Fugro N.V. | Position monitoring of a gasket between tunnel segments |
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CN105806956B (en) * | 2014-12-30 | 2019-08-13 | 中核武汉核电运行技术股份有限公司 | A kind of probe assembly of steam generator heat-transfer pipe ultrasonic examination |
CN106050242B (en) * | 2016-07-13 | 2018-07-03 | 同济大学 | A kind of field measurement device of tunnel tunnel face front extrusion deformation |
CN108678768B (en) * | 2018-05-04 | 2023-07-25 | 中铁二院昆明勘察设计研究院有限责任公司 | Spliced temporary support system and support method thereof |
CN108843396B (en) * | 2018-06-22 | 2019-10-08 | 华北科技学院 | A kind of top plate disaster monitoring device |
CN113187555B (en) * | 2021-04-30 | 2023-06-23 | 安徽建筑大学 | Method for reducing surface subsidence range caused by underground mining of plain mining area |
CN115163039B (en) * | 2022-06-09 | 2024-08-27 | 东北大学 | Deep soft rock drilling deformation cracking integrated non-contact monitoring device and method |
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JP2981585B2 (en) * | 1993-12-08 | 1999-11-22 | 工業技術院長 | Discontinuous surface displacement measurement method and discontinuous surface displacement meter |
ATE524705T1 (en) * | 2006-05-31 | 2011-09-15 | Kalman Kovari | METHOD AND DEVICE FOR DETERMINING DISPLACEMENTS AND/OR DEFORMATIONS IN UNDERGROUND MINING |
CN201000324Y (en) * | 2006-11-30 | 2008-01-02 | 四川大学 | Casing tube type drilling multi-point extensometer |
CN200989770Y (en) * | 2006-11-30 | 2007-12-12 | 成都理工大学 | Sleeve type hole drilling multipoint extension meter |
CN201672998U (en) * | 2010-04-23 | 2010-12-15 | 安徽理工大学 | Wall rock drill-hole multi-point stress gage |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019172753A1 (en) * | 2018-03-06 | 2019-09-12 | Fugro N.V. | Position monitoring of a gasket between tunnel segments |
NL2020541B1 (en) * | 2018-03-06 | 2019-09-13 | Fugro N V | Position Monitoring of a Gasket between Tunnel Segments |
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