CN102297739B - System for monitoring anchored force of pre-stressed anchor cable in real time - Google Patents

System for monitoring anchored force of pre-stressed anchor cable in real time Download PDF

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Publication number
CN102297739B
CN102297739B CN 201110141414 CN201110141414A CN102297739B CN 102297739 B CN102297739 B CN 102297739B CN 201110141414 CN201110141414 CN 201110141414 CN 201110141414 A CN201110141414 A CN 201110141414A CN 102297739 B CN102297739 B CN 102297739B
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anchor
cable
force
stressed
monitoring
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CN102297739A (en
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杨俊志
侯锦
冯杨文
陈修星
杨世伟
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杨俊志
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Abstract

The invention discloses a system for monitoring anchored force of a pre-stressed anchor cable in real time. The system comprises the pre-stressed anchor cable (1), a force measurement sensor (2) and a signal transmission system (3). The pre-stressed anchor cable (1) is composed of a guide cap (4), an anchor support plate (5), an anchor cushion plate (6), an extrusion head (8), an isolation frame (9), a constraint ring (10), a grout pipe (11), an anchor fixture (12) and an un-bonded steel strand (13). The tail end of the un-bonded steel strand (13) is fixedly connected with the anchor fixture (12) on an anchor pier (14). A steel cushion plate (15) is arranged between the anchor pier (14) and the anchor fixture (12). The force measurement sensor (2) is arranged between the anchor fixture (12) and the steel cushion plate (15). The force measurement sensor (2) is also connected to the signal transmission system (3). According to the system disclosed by the invention, a sensor and a wireless transmission technology are applied in the field of monitoring of the anchored force of anchor cables; and the system for monitoring the anchored force of the pre-stressed anchor cable in real time provided by the invention has the advantages of remote monitoring, good safety property and high measurement precision.

Description

The anchorage force of pre-stressed anchor cable real-time monitoring system
Technical field
The present invention relates to a kind of anchorage force of pre-stressed anchor cable real-time monitoring system.
Background technology
In building trade, particularly in the waterwork industry, the application of prestress anchorage cable is extremely extensive.Traditional prestress anchorage cable generally is divided into tension type prestress anchorage cable and pressure-type prestress anchorage cable: the anchoring section leading portion of tension type prestress anchorage cable is stressed to be the tension concentration zones, gradually to back segment and the easy shear failure that produces; The anchoring section latter end of pressure-type prestress anchorage cable is stressed to be the compressive stress concentration zones, gradually to leading portion and be prone to cause pressure break.
Above-mentioned two kinds of prestress anchorage cables are different to the failure mode of anchoring section; But all can have a strong impact on the effect of prestress anchoraging; If can not monitor the anchor force and the duty of anchor cable in real time, faults such as the not enough and anchor cable fracture of anchorage cable anchoring power will take place unavoidably, even cause the generation of side slope avalanche.Yet; Traditional anchor cable monitoring all is artificial the realization, because the residing geographical environment of a lot of projects under construction is very abominable, even need anchor cable be installed on the very dangerous rock mass and steep cliff; If adopt the personal monitoring, with causing unnecessary personal security accident unavoidably; Also have some anchor force monitoring systems, though adopt intellectual monitoring to act on behalf of the personal monitoring, the measuring accuracy of anchor force is very low.
Along with the development of building industry and improving constantly of people's safe production awareness; People seem important all the more for the precise monitoring of anchorage force of pre-stressed anchor cable, seek the important topic that a kind of safe and reliable anchorage force of pre-stressed anchor cable monitoring method is called current waterwork industry.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; A kind of novel anchorage force of pre-stressed anchor cable real-time monitoring system is provided; Overcome shortcomings such as existing anchorage cable anchoring power monitoring poor stability, measuring accuracy are low; Guaranteed the safety in workmen's work progress, the anchor force situation of real-time remote monitoring anchor cable, unusual circumstance can in time be handled.
The objective of the invention is to realize: the anchorage force of pre-stressed anchor cable real-time monitoring system through following technical scheme; It comprises prestress anchorage cable, force cell and signal transmission system, and described prestress anchorage cable is made up of guiding cap, anchor supporting plate, anchor plate, extrusion head, isolating frame, constraint circle, grout pipe, anchor clamp and non-bending steel cable, and the anchor plate, extrusion head and the non-bending steel cable extruding that are positioned at the anchoring section front end become single piece; And anchor supporting plate and this single piece are chained together by screw rod; Decomposition pressure type twisted wire bundle, isolating frame, constraint circle and non-bending steel cable are formed tension type twisted wire bundle, and pressure-type twisted wire bundle and tension type twisted wire bundle are organized in together; Guiding cap is fixedly connected with foremost supporting plate; The end of non-bending steel cable is fixedly connected with anchor clamp on the anchor pier, and grout pipe penetrates from the prestress anchorage cable end, through guiding cap place foremost; Be provided with billet between anchor pier and the anchor clamp; Billet is fixedly connected with anchor pier, and force cell is arranged between anchor clamp and the billet, and force cell is connected with a signal transmission system.
Signal transmission system of the present invention comprises mainboard, signal data transport module and remote server; The output of force cell is connected with mainboard; Mainboard is connected with the input of signal data transport module, and the output of signal data transport module is connected with remote server.
Signal data transport module of the present invention is the GPRS wireless data transfer module.
The invention has the beneficial effects as follows: sensor and Radio Transmission Technology are applied to anchorage cable anchoring power monitoring field, provide a kind of can remote monitoring, security performance is good and measuring accuracy is high anchorage force of pre-stressed anchor cable real-time monitoring system.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 forms block scheme for transmission system of the present invention;
Among the figure, 1-prestress anchorage cable, 2-force cell, 3-signal transmission system, 4-guiding cap, 5-anchor supporting plate; The 6-anchor plate, the 7-screw rod, the 8-extrusion head, the 9-isolating frame, 10-retrains circle; The 11-grout pipe, 12-anchor clamp, 13-non-bending steel cable, 14-anchor pier, 15-billet.
Embodiment
Further describe technical scheme of the present invention below in conjunction with accompanying drawing: as shown in Figure 1, the anchorage force of pre-stressed anchor cable real-time monitoring system, it comprises prestress anchorage cable 1, force cell 2 and GPRS wireless transmitting system 3; Described prestress anchorage cable 1 is made up of guiding cap 4, anchor supporting plate 5, anchor plate 6, extrusion head 8, isolating frame 9, constraint circle 10, grout pipe 11, anchor clamp 12 and non-bending steel cable 13; The anchor slab, extrusion head and the non-bending steel cable extruding that are positioned at the anchoring section front end become single piece, and supporting plate and this single piece are chained together decomposition pressure type twisted wire bundle by screw rod; Isolating frame, constraint circle and non-bending steel cable are formed tension type twisted wire bundle; Pressure-type twisted wire bundle and tension type twisted wire bundle are organized in together, and guiding cap 4 is fixedly connected with foremost anchor supporting plate 5, and the end of non-bending steel cable 13 is fixedly connected with anchor clamp 12 on the anchor pier 14; Grout pipe 11 penetrates from prestress anchorage cable 1 end; Through guiding cap 4 places foremost are provided with billet 15 between anchor pier 14 and the anchor clamp 12, and billet 15 is fixedly connected with anchor pier 14; Force cell 2 is arranged between anchor clamp 12 and the billet 15; Force cell 2 also is connected with a GPRS wireless transmitting system 3, and GPRS wireless transmitting system 3 comprises mainboard, GPRS wireless data transfer module, remote server, and the output of force cell is connected with mainboard; Mainboard is connected with the input of GPRS wireless data transfer module, and the output of GPRS wireless data transfer module is connected with remote server.
Force sensor for anchor rope 2 is installed between anchor pier 14 and the anchor clamp 12; The stretching force that prestress anchorage cable 1 produces acts on the non-bending steel cable 13 of prestress anchorage cable 1; Thereby affact on the force cell 2 that is fixedly connected with non-bending steel cable 13; Force cell 2 converts the pressure that senses into analog current or voltage, is transferred to mainboard, and mainboard is transferred to the GPRS wireless data transfer module with it after receiving pressure information number; The signal that remote server active searching GPRS wireless data transfer module sends carries out remote monitoring by the staff.

Claims (3)

1. anchorage force of pre-stressed anchor cable real-time monitoring system; It comprises prestress anchorage cable (1), force cell (2), signal transmission system (3) and remote server; Described prestress anchorage cable (1) is made up of guiding cap (4), anchor supporting plate (5), anchor plate (6), extrusion head (8), isolating frame (9), constraint circle (10), grout pipe (11), anchor clamp (12) and non-bending steel cable (13); The anchor plate (6), extrusion head (8) and non-bending steel cable (13) extruding that are positioned at the anchoring section front end become single piece; And anchor supporting plate (5) and this single piece are chained together by screw rod (7); Decomposition pressure type twisted wire bundle, isolating frame (9), constraint circle (10) and non-bending steel cable (13) are formed tension type twisted wire bundle, and pressure-type twisted wire bundle and tension type twisted wire bundle are organized in together; Guiding cap (4) is fixedly connected with foremost anchor supporting plate (5); The end of non-bending steel cable (13) is fixedly connected with anchor clamp (12) on the anchor pier (14), and grout pipe (11) penetrates from prestress anchorage cable (1) end, and through guiding cap (4) is foremost located; It is characterized in that: be provided with billet (15) between anchor pier (14) and the anchor clamp (12); Billet (15) is fixedly connected with anchor pier (14), and force cell (2) is arranged between anchor clamp (12) and the billet (15), and force cell (2) also is connected with a signal transmission system (3).
2. anchorage force of pre-stressed anchor cable real-time monitoring system according to claim 1; It is characterized in that: described signal transmission system (3) comprises mainboard and signal data transport module; The output of force cell (2) is connected with mainboard; Mainboard is connected with the input of signal data transport module, and the output of signal data transport module is connected with remote server.
3. anchorage force of pre-stressed anchor cable real-time monitoring system according to claim 2 is characterized in that: described signal data transport module is the GPRS wireless data transfer module.
CN 201110141414 2011-05-27 2011-05-27 System for monitoring anchored force of pre-stressed anchor cable in real time Expired - Fee Related CN102297739B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048127B (en) * 2012-12-18 2016-05-11 江苏省交通科学研究院有限公司 Ground tackle static load anchoring performance experimental safe protective housing
CN103557979B (en) * 2013-11-18 2015-07-15 北京林业大学 Portable root system anchoring force tester
CN107014328B (en) * 2017-05-25 2023-09-26 北京中船信息科技有限公司 Surface inhaul cable force measuring type geological disaster automatic monitoring device and method
CN109630201B (en) * 2018-12-14 2020-06-30 山东科技大学 Roof rock stratum horizontal extrusion force monitoring-based anchor rod length determination method
CN109900395A (en) * 2019-04-10 2019-06-18 四川省交通勘察设计研究院有限公司 It is a kind of can real-time monitoring loss of prestress device

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CN2529915Y (en) * 2001-11-26 2003-01-08 杨俊志 Freedom monohole multi-anchor head anti-corrosion prestressed anchor wire
CN1587551A (en) * 2004-10-12 2005-03-02 河海大学 Automatic monitoring method for cement-soil stirring pile construction
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CN2676169Y (en) * 2003-10-01 2005-02-02 大庆油田有限责任公司 Wireless communication type tester for screw pump well
CN2913466Y (en) * 2006-05-11 2007-06-20 中国计量学院 Automatic monitoring instrument for sedimentation of soft soil foundation
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2529915Y (en) * 2001-11-26 2003-01-08 杨俊志 Freedom monohole multi-anchor head anti-corrosion prestressed anchor wire
CN1587551A (en) * 2004-10-12 2005-03-02 河海大学 Automatic monitoring method for cement-soil stirring pile construction
CN1651857A (en) * 2005-03-29 2005-08-10 中国科学院力学研究所 Method and apparatus for measuring slope surface displacement
DE102005036740A1 (en) * 2005-08-04 2007-02-08 Fischer Gmbh Hiking stick e.g. Nordic walking stick, for e.g. ski touring sport type, has sensor for determining force exerted along axial direction of stick, and signal output unit for outputting signal observed by user depending on determined force

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