CN102877870A - Static and dynamic combined intelligent pre-warning anchor rod - Google Patents
Static and dynamic combined intelligent pre-warning anchor rod Download PDFInfo
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- CN102877870A CN102877870A CN2012103965765A CN201210396576A CN102877870A CN 102877870 A CN102877870 A CN 102877870A CN 2012103965765 A CN2012103965765 A CN 2012103965765A CN 201210396576 A CN201210396576 A CN 201210396576A CN 102877870 A CN102877870 A CN 102877870A
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Abstract
The invention relates to a static and dynamic combined intelligent pre-warning anchor rod. The intelligent pre-warning anchor rod consists of a hollow grouting rod body (1) and a solid rod body (3) which are sleeved together through a sleeve (2) and are bonded and anchored to wall rock of a hole wall, wherein the sleeve (2) is not bonded to the wall rock of the hole wall; the solid rod body (3) can penetrate through a large internal diameter section of the sleeve (2), but part of the rod body cannot penetrate through a small internal diameter section of the sleeve (2); a displacement sensor (10) is fixed in the sleeve, and is connected with an intelligent pre-warning device (12) outside an anchor hole by penetrating through a communication wire (11) of the hollow grouting rod body (1); and the displacement sensor (10) can be a mechanical wheel, an ultrasonic range finder or an infrared range finder and the like. On the basis of the original static and dynamic combined anchor rod, the static and dynamic combined intelligent pre-warning anchor rod is provided with functions of intelligent measurement and pre-warning, can realize continuous and reliable supporting, safe monitoring and pre-warning in the field of surrounding rock dynamic disaster monitoring and control, and is suitable for market popularization and application.
Description
Technical field
The present invention relates to supporting and the Monitoring and forecasting system in real-time equipment of a kind of hard crisp country rock cavern, particularly relate to a kind of sound assembled bolt with warning function of preventing and treating the country rock dynamic disaster, belong to geotechnical engineering anchoring field.
Background technology
The country rock dynamic disaster is complicated safety problem in the underground rock engineering of deep operating environment, to be in the dynamic buckling destruction some factor is brought out under after the hard fragility country rock excavation off-load of structural integrity in the high-ground stress environment, have country rock suddenly, launch to the excavation space fiercely, throwing, ejection and the exfoliate dynamic characteristic of hole wall, have the characteristics such as hysteresis quality, continuity, sudden, violence and harmfulness, the safety that seriously threatens land lower structure, personnel and equipment.The country rock dynamic disasters such as rock burst, mine bump are day by day serious with the increase of mining depth.
Just can guarantee the construction process of the underground constructions such as deep mineral resources safe working and tunnel to the advanced early warning of country rock dynamic disaster and control.Dynamic stress during the country rock dynamic disasters such as hard crisp country rock cavern generation rock burst is very large, generally can meet or exceed the yield strength of support unit, if support system does not allow and presses and surrender character, and just inevitable failure.Simultaneously, the characteristics of the hard and compact of hard crisp country rock own cause the reason of its destruction to relate to the category of dynamic rock mechanics and rock statics two aspects.Anchor pole can Effective Regulation the self-bearing capacity of country rock, the therefore hard crisp surrounding rock supporting system pressure large deformation of also adopting Extendable anchor rod to provide certain distortion to cause to hold the country rock power destruction.At the Extendable anchor rod that has proposed a little anti-rock bursts aspect the country rock dynamic disasters such as reply rock burst, bump, patent No. 201020684957.X discloses a kind of water expansion type elastic anchor rod for resisting rock burst, but the water expansion type anchor bar supporting capacity is low, inapplicable during than high-ground stress, stiffness spring only is the improvement of being extended in the surface, tunnel simultaneously, and the deformability under full length fastening is very weak.The patent No. 201110332493.5 discloses a kind of welded type sound assembled bolt, and this anchor pole can adapt to quiet, the kinetics damage feature of hard crisp country rock, but structure function is single, only has the yield supporting function, and does not possess the advanced early warning function.
The prediction early warning of the country rock such as rock burst, bump dynamic disaster is exactly to determine the information such as the contingent regional place of disaster, time and degree of danger.Country rock dynamic disaster advanced prediction often adopts the field measurement method, mainly contains drilling cuttings method, electromagnetic radiation method, acoustic emission, microseism ripple predicted method etc.The outstanding shortcoming of drilling cuttings method is the danger of operating personnel in the implementation process, the operate miss that varies with each individual and can not continuous monitoring, thereby causes useful information to be omitted and occur failing to report.Adopt acoustic emission (microseism) monitoring method, need to arrange boring installation monitoring probe, can produce further damage and impact to country rock, it is high that the relative very complicated of observation process and expense are installed, sensor will with the fine coupling of country rock, to having relatively high expectations of whole installation quality, also there are interference in explosion and plant equipment to its monitoring result.More than two kinds of methods can't realize harmless Monitoring and forecasting system in real-time to the country rock rock burst.Patent No. 01272808.X discloses a kind of electromagnetic radiating monitoring apparatus for coal petrography dynamic disaster for this reason, harmless (noncontact), position monitor can have been realized, but owing to the underground water of some mine, the complexity of electromagnetic environment, monitoring result there is larger impact, makes monitoring result larger error occur.The patent No. 201110109285.9 discloses the method for a kind of harmless real-time magnetic monitoring and prediction deep wall rock rock burst, but the method lack the accuracy of its prediction in the situation of theory and experimental study be difficult to compellent.Therefore, be badly in need of a kind of monitoring method and the device that can realize continuous, reliable supporting, safety monitoring, early warning in country rock dynamic disaster Supervise prevention and cure field.
Summary of the invention
For overcoming the above problems, problem to be solved by this invention provides and a kind ofly can realize monitoring and warning and can adapt to the intelligent anchor rod that hard crisp country rock is quiet, the dynamic failure characteristics have yield supporting the country rock dynamic disaster.Design scheme of the present invention is as follows: a kind of sound combination intelligent early warning anchor pole, be socketed to form by sleeve pipe by the hollow slip casting body of rod and the solid body of rod, and be furnished with pallet and nut at the hollow slip casting body of rod, wherein: the described hollow slip casting body of rod and the described solid body of rod and hole wall country rock bond-anchorage; Described sleeve pipe comprises large diameter section and little internal diameter section, does not bond with the hole wall country rock; Described solid body of rod section can be passed the large diameter section of described sleeve pipe, but the part shaft can not pass the little internal diameter section of described sleeve pipe; Described sleeve pipe is arranged in country rock internal rupture softened zone and elastic region boundary vicinity, be fixed with displacement sensor in the sleeve pipe between the described hollow slip casting body of rod and the described solid body of rod, described displacement sensor is connected with anchor hole intelligent early-warning device outward by the connection that passes the described hollow slip casting body of rod.Wherein said displacement sensor employing mechanical wheel, ultrasonic range finder or infrared ambulator can.
Adopt above design scheme, the monitoring that realizes continuous, reliable supporting, safety monitoring, early warning effectively is provided, be fit to marketing and use.
Description of drawings
Fig. 1 is the sound combination intelligent early warning anchor pole schematic diagram of the embodiment of the invention 1.
Marginal data
1-hollow slip casting body of rod 2-sleeve pipe
The solid body of rod 4-of 3-pallet
The outer stop grouting plug of 5-nut 6-
Stop grouting plug 8-baffle plate in the 7-
9-shears nuclear 10-displacement sensor
11-connection 12-Intelligent Single-Chip Based system
13-cement mortar 14-resin anchoring agent
The 15-wall 16-country rock softened zone that breaks
17-country rock elastic region 18-break softened zone and border, elastic region
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
The sound combination intelligent early warning anchor pole that present embodiment provides, anchor pole adopts the hollow slip casting body of rod and be connected to be provided with and shears the solid body of rod of examining and make by the sleeve pipe connection, can adapt to than hard crisp surrounding rock failure characteristics under the high-ground stress condition, can resist the hard crisp suffered static and dynamic loadings effect in cavern of enclosing, have the yield supporting function of sound combination; Allow the compressive strain characteristics according to the body of rod in the sleeve pipe, displacement sensor is installed in sleeve pipe, situation of movement to the body of rod is monitored, and the outer Intelligent Single-Chip Based system of displacement sensor and anchor hole links, and the Intelligent Single-Chip Based system analyzes and send sound and light alarm to body of rod displacement size automatically.
Embodiment 1: referring to shown in Figure 1, hard crisp country rock cavern can form break softened zone 16 and elastic region 17 under the high-ground stress effect, and the sonic test measuring apparatus can be adopted in the border 18 of the softened zone that breaks; According to the surrounding rock failure partition boundaries degree of depth of measuring, select high-strength deformed steel bar to process respectively the hollow slip casting body of rod 1 and the solid body of rod 3 by the anchor Design standard.The hollow slip casting body of rod 1 is provided with slurry outlet, and its thread surface should be convenient to the installation of sleeve pipe 2, nut 5, interior stop grouting plug 6 and outer stop grouting plug 7, and pallet 4 and outer stop grouting plug 6 leave the exhaust passage.The solid body of rod 3 one ends are agitator, the other end and sleeve pipe socket, and this socket end body of rod is provided with the slightly large cylindricality stopper of diameter and is provided with three groups of shearing nuclears 9 of some on the surface.Process the annular sleeve pipe 2 of one little one large two kinds of internal diameters, the little internal diameter of sleeve pipe 2 and the external diameter of the solid body of rod 3 are complementary, the external diameter of the cylindricality stopper of the large diameter of sleeve pipe 2 and the solid body of rod is complementary, and sleeve pipe 2 axial lengths are pressed the reach of the suitable deflection of country rock, the hollow slip casting body of rod 1 and the size of displacement sensor 10 is determined.Displacement sensor 10 is fixed in the sleeve pipe between the hollow slip casting body of rod 1 and the solid body of rod 3, and the outer Intelligent Single-Chip Based system 12 of the hollow tube that connection 11 passes the hollow slip casting body of rod 1 and anchor hole is connected.
Installation steps are as follows: at first, select the resin anchoring agent of suitable diameter and length to be used for the anchoring of the solid body of rod 3 bar heads according to the external diameter of anchor hole aperture and the solid body of rod 3, agitating resin Anchor Agent when the solid body of rod 3 bar heads are provided with agitator and are used for creeping into, for avoiding sleeve pipe 2 by anchoring bond, the solid body of rod 3 is provided with baffle plate 8, and this baffle plate can be used for controlling the anchorage length of the solid body of rod 3 simultaneously.When the solid body of rod 3 is firm be anchored in hole wall after, begin 5 pairs of anchor poles of fastening pallet 4 and nut and carry out pretension.To 1 slip casting of the hollow slip casting body of rod, cement mortar is injected by slurry outlet, and interior stop grouting plug 7 can avoid sleeve pipe 2 bonded, fill with the bar tail along with slurries, air can be discharged by the exhaust passage in the hole, until be filled to outer stop grouting plug 6, the bar tail will be by the cement mortar anchoring bond like this; Drawn connection 11, Intelligent Single-Chip Based system 12 has been fixed in cavern's wall.So far, finish the integral installation of anchor pole.
Operating principle is as follows: be subjected to the geostatic stress effect, surrounding rock of chamber makes anchor pole be in as-drawn to internal strain, the solid body of rod 3 has the trend that is drawn out sleeve pipe 2, shear nuclear 9 for first group and be in the state of cutting of pressing, when the shearing resistance of sleeve pipe 2 path sections formation is examined 9 shear strength greater than first group of shearing, shearing nuclear 9 for first group is cut off, the solid body of rod 3 is drawn out with first group and shears 9 and second groups of corresponding length of shearing nuclear 9 spacings of nuclear, and direction is slided outside sleeve pipe, show the pressure energy power that allows, this moment, second group of shearing nuclear 9 was in the state of cutting of pressing.At this moment, displacement sensor 10 can monitor the movable length first time of the solid body of rod 3, behind the signal that Intelligent Single-Chip Based system 12 reception displacement sensors 10 send, will send the one-level early warning with chimes of doom and luminous form.Similarly, after second group of shearing nuclear 9 was cut off, displacement sensor 10 can monitor the movable length second time of the solid body of rod 3, and Intelligent Single-Chip Based system 12 sends the secondary early warning; Until the 3rd group shear nuclear 9 and cut off after, Intelligent Single-Chip Based system 12 sends three grades of early warning, prompting country rock dynamic disaster must the person of asking for help be withdrawn hedging at hand temporarily.At this moment, the cylindricality stopper will stop the solid body of rod 3 to sleeve pipe 2 outer slips, and anchor pole no longer allows pressure, shows and the corresponding high bearing capacity of regular screw threads steel anchor rod, and the destruction of effectively resisting the country rock dynamic disaster is for personnel's safe escape is raced against time.
The present invention is a kind of sound combination intelligent early warning anchor pole, this anchor pole can adapt to than quiet, the dynamic failure characteristics of hard crisp country rock under the high-ground stress condition, not only have and resist hard crisp yield supporting function of enclosing the suffered static and dynamic loadings effect in cavern, and have monitoring and advanced early warning function, can realize the effective control to hard crisp country rock dynamic disaster.
Above embodiment is the present invention one better embodiment, but is not the whole of content of the present invention, and equivalents and change that all are done in the present invention's spirit scope all will be in protection domains of the present invention.
Claims (4)
1. sound combination intelligent early warning anchor pole, be socketed to form by sleeve pipe (2) by the hollow slip casting body of rod (1) and the solid body of rod (3), and be furnished with pallet (4) and nut (5) at the hollow slip casting body of rod (1), wherein: the described hollow slip casting body of rod (1) and the described solid body of rod (3) and hole wall country rock bond-anchorage; Described sleeve pipe (2) comprises large diameter section and little internal diameter section, does not bond with the hole wall country rock; Described solid body of rod section (3) can be passed the large diameter section of described sleeve pipe (2), but the part shaft can not pass the little internal diameter section of described sleeve pipe (2); Described sleeve pipe (2) is arranged in country rock internal rupture softened zone (16) and elastic region (17) boundary vicinity, it is characterized in that: be fixed with displacement sensor (10) in the sleeve pipe between the described hollow slip casting body of rod (1) and the described solid body of rod (3), described displacement sensor (10) is connected with anchor hole intelligent early-warning device (12) outward by the connection (11) that passes the described hollow slip casting body of rod (1).
2. sound combination intelligent early warning anchor pole according to claim 1 is characterized in that: described displacement sensor (10) is mechanical wheel.
3. sound combination intelligent early warning anchor pole according to claim 1, it is characterized in that: described displacement sensor (10) is ultrasonic range finder.
4. sound combination intelligent early warning anchor pole according to claim 1, it is characterized in that: described displacement sensor (10) is infrared ambulator.
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| CN2012103965765A CN102877870A (en) | 2012-10-18 | 2012-10-18 | Static and dynamic combined intelligent pre-warning anchor rod |
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| CN2012103965765A CN102877870A (en) | 2012-10-18 | 2012-10-18 | Static and dynamic combined intelligent pre-warning anchor rod |
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| CN103850254A (en) * | 2014-04-01 | 2014-06-11 | 兰州理工大学 | Side slope anchoring structure with early warning energy consumption and damping control system and construction method |
| CN103866765A (en) * | 2014-04-01 | 2014-06-18 | 兰州理工大学 | Early warning and seismic control integrated side slope anchoring structure and construction method thereof |
| CN104453963A (en) * | 2014-12-16 | 2015-03-25 | 湖南科技大学 | Anchoring predicting and prewarning anchor rod system used for coal and gas outburst danger roadway |
| CN104568274A (en) * | 2015-01-21 | 2015-04-29 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| CN106837415A (en) * | 2017-03-21 | 2017-06-13 | 辽宁工程技术大学 | A kind of device and method of prevention coal mining working face bump |
| CN107227968A (en) * | 2017-07-27 | 2017-10-03 | 贵州大学 | A kind of self-inspection anchor pole and its application method |
| CN107605519A (en) * | 2017-11-03 | 2018-01-19 | 湖南科技大学 | A kind of multifunctional monitoring early warning anchor pole |
| CN107905827A (en) * | 2017-11-23 | 2018-04-13 | 西南石油大学 | A kind of self-advancing type hollow grouting anchor and application method with force measuring function |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN109341922A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Detecting earth stress is installed with Tubular Yarn aperture to middle regulator and application method |
| CN109443603A (en) * | 2018-12-07 | 2019-03-08 | 湖南科技大学 | A kind of self-propelled detecting earth stress Tubular Yarn mounting device |
| CN109458203A (en) * | 2019-01-15 | 2019-03-12 | 辽宁工程技术大学 | A kind of self-retaining formula early warning anchor pole and application method |
| CN110736430A (en) * | 2019-10-16 | 2020-01-31 | 中国矿业大学(北京) | Fiber grating displacement meter installation and protection method suitable for deep underground engineering |
| CN110925003A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Extensible anchor rod with multistage stress and displacement control and multifunctional intelligent monitoring device |
| CN111075487A (en) * | 2019-12-31 | 2020-04-28 | 西南石油大学 | Anchor rod with function of measuring surrounding rock strain and temperature coupling |
| WO2020224223A1 (en) * | 2019-05-05 | 2020-11-12 | 中国矿业大学 | Anchor rod for surrounding rock support and instability monitoring, and mounting method thereof |
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| CN115013060A (en) * | 2022-05-18 | 2022-09-06 | 中南大学 | Underground rock disaster monitoring and early warning device and installation and use method |
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| WO2024064974A1 (en) * | 2022-09-20 | 2024-03-28 | Innovative Mining Products (Pty) Ltd | A displacement measuring device for installation in a rock hole |
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| CN103866765A (en) * | 2014-04-01 | 2014-06-18 | 兰州理工大学 | Early warning and seismic control integrated side slope anchoring structure and construction method thereof |
| CN103850254A (en) * | 2014-04-01 | 2014-06-11 | 兰州理工大学 | Side slope anchoring structure with early warning energy consumption and damping control system and construction method |
| CN104453963A (en) * | 2014-12-16 | 2015-03-25 | 湖南科技大学 | Anchoring predicting and prewarning anchor rod system used for coal and gas outburst danger roadway |
| CN104568274A (en) * | 2015-01-21 | 2015-04-29 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN104568274B (en) * | 2015-01-21 | 2017-02-22 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN106437802B (en) * | 2016-12-23 | 2019-12-20 | 山东科技大学 | Anchor rod yielding device with warning function and using method |
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| CN106837415A (en) * | 2017-03-21 | 2017-06-13 | 辽宁工程技术大学 | A kind of device and method of prevention coal mining working face bump |
| CN107227968A (en) * | 2017-07-27 | 2017-10-03 | 贵州大学 | A kind of self-inspection anchor pole and its application method |
| CN107605519A (en) * | 2017-11-03 | 2018-01-19 | 湖南科技大学 | A kind of multifunctional monitoring early warning anchor pole |
| CN107605519B (en) * | 2017-11-03 | 2024-02-13 | 湖南科技大学 | Multifunctional monitoring and early warning anchor rod |
| CN107905827A (en) * | 2017-11-23 | 2018-04-13 | 西南石油大学 | A kind of self-advancing type hollow grouting anchor and application method with force measuring function |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN109341922A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Detecting earth stress is installed with Tubular Yarn aperture to middle regulator and application method |
| CN109341922B (en) * | 2018-11-07 | 2024-04-09 | 湖南科技大学 | Hollow inclusion small hole installation centering adjustment device for ground stress test and use method |
| CN109443603A (en) * | 2018-12-07 | 2019-03-08 | 湖南科技大学 | A kind of self-propelled detecting earth stress Tubular Yarn mounting device |
| CN109443603B (en) * | 2018-12-07 | 2024-04-09 | 湖南科技大学 | Hollow inclusion installation device for self-propelled ground stress test |
| CN109458203A (en) * | 2019-01-15 | 2019-03-12 | 辽宁工程技术大学 | A kind of self-retaining formula early warning anchor pole and application method |
| CN109458203B (en) * | 2019-01-15 | 2023-11-07 | 辽宁工程技术大学 | Self-fixing early warning anchor rod and use method |
| WO2020224223A1 (en) * | 2019-05-05 | 2020-11-12 | 中国矿业大学 | Anchor rod for surrounding rock support and instability monitoring, and mounting method thereof |
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| CN110925003A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Extensible anchor rod with multistage stress and displacement control and multifunctional intelligent monitoring device |
| CN111075487B (en) * | 2019-12-31 | 2024-05-24 | 西南石油大学 | Anchor rod with function of measuring surrounding rock strain and temperature coupling |
| CN111075487A (en) * | 2019-12-31 | 2020-04-28 | 西南石油大学 | Anchor rod with function of measuring surrounding rock strain and temperature coupling |
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| CN113502831A (en) * | 2021-09-10 | 2021-10-15 | 江苏钜水建设工程有限公司 | Excavation engineering side slope is from early warning reinforced structure |
| CN113502831B (en) * | 2021-09-10 | 2021-11-12 | 江苏钜水建设工程有限公司 | Excavation engineering side slope is from early warning reinforced structure |
| CN113653522A (en) * | 2021-09-16 | 2021-11-16 | 河海大学 | Self-tapping type yielding anchor rod capable of controlling large deformation of soft rock and having displacement monitoring function |
| CN114000899A (en) * | 2021-09-29 | 2022-02-01 | 华北水利水电大学 | Multifunctional and intelligent monitoring anchor rod device |
| CN114000899B (en) * | 2021-09-29 | 2024-04-12 | 华北水利水电大学 | Multifunctional intelligent monitoring anchor rod device |
| CN115013060A (en) * | 2022-05-18 | 2022-09-06 | 中南大学 | Underground rock disaster monitoring and early warning device and installation and use method |
| CN115013060B (en) * | 2022-05-18 | 2023-03-14 | 中南大学 | Underground rock disaster monitoring and early warning equipment and installation and use method |
| CN115013061A (en) * | 2022-05-26 | 2022-09-06 | 山东大学 | Anchor rod type tunnel engineering geological disaster intelligent monitoring device and method |
| CN115013061B (en) * | 2022-05-26 | 2024-01-05 | 山东大学 | Anchor rod type tunnel engineering geological disaster intelligent monitoring device and method |
| WO2024064974A1 (en) * | 2022-09-20 | 2024-03-28 | Innovative Mining Products (Pty) Ltd | A displacement measuring device for installation in a rock hole |
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Application publication date: 20130116 |