CN103046525A - Facility and method for mechanical stability remote intelligent monitoring and three-dimensional early warning of deep foundation pit - Google Patents
Facility and method for mechanical stability remote intelligent monitoring and three-dimensional early warning of deep foundation pit Download PDFInfo
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Abstract
The invention discloses a facility and a method for mechanical stability remote intelligent monitoring and three-dimensional early warning of a deep foundation pit. The method includes: setting up an excavation mechanical stability three-dimensional numerical model of the deep foundation pit in a construction region on the basis of physical and mechanics parameters of a rock-soil body of the deep foundation pit, regional hydrogeological engineering geological conditions of the deep foundation pit and the FLAC3D (fast lagrangian analysis of continua) technology; setting up a three-dimensional visual safety early warning platform of the deep foundation pit on the basis of a VTK (visualization toolkit) commercial software system; acquiring side soil pressure of fender posts and I-beam support shaft force through a pressure cell and an axial force meter; acquiring real-time monitoring data of pore water pressure of soil around the fender posts and at the slope top of the foundation pit, and transmitting the data to a remote monitoring and data processing mainframe; using the excavation mechanical stability three-dimensional numerical model of the deep foundation pit for completing model parameter correction according to original array data and comparing subsequent real-time mechanics data with a model parameter threshold; displaying through the three-dimensional visual safety early warning platform of the deep foundation pit and subjecting alert exceeding parameters to graded safety early warning; and sending all early warning information to mobile phones of related personnel, and meanwhile, sending the early warning information back to an audible and visual alarm mounted on a working plane of a construction site for alarming audibly and visually.
Description
Technical field
The invention belongs to the relevant deep foundation pit construction field of engineering technology such as City Subway Station, tall building foundation excavation, be used for deep foundation ditch mechanical stability intellectual monitoring and safe early warning; Be specifically related to deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning, also relate to deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional pre-warning facility.
Background technology
Along with the expansion of the building sizes such as city underground, super highrise building, it is more and more to be accompanied by the deep foundation pit construction project.In the Deep foundation Pit excavation, instability of foundation pit, the prominent mud Frequent Accidents of gushing water, the foundation ditch mechanical stability is more and more to cause in the industry people's concern, and industry Base hole supporting technology rules have certain limitation when running into special hydrology Geological Engineering, geological conditions and intensive buildings environment.Consider the principle of safety economy, the three-dimensional method for early warning of exploitation deep foundation ditch mechanical stability remote intelligent monitoring has very important practical significance.
Still few aspect deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning research both at home and abroad, according to the domestic literature record, be built with database, the early warning of constructing tunnel multiple information and safety management in China's only a few highway, mineral products, seabed tunnel, the railway engineering.But so far, there is not yet depth of field excavation of foundation pit mechanical stability Three-dimension Numerical Model and deep foundation ditch three-dimensional visualization safe early warning platform in the deep foundation ditch mechanical stability remote intelligent monitoring of one and the bibliographical information of three-dimensional method for early warning.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning, and another technical problem that the present invention will solve is to provide a kind of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional pre-warning facility.Use the method and facility, can deeply survey the lateral earth pressure of bracing of foundation pit stake, the axial force of the supports of real-time continuous monitoring i iron and the pore water pressure force data of all soil of fender post by the real-time continuous prison, and gained measured data real-time continuous is transferred to remote monitoring and data processing host, according to lateral earth pressure, axial force of the supports and pore water pressure force data, finish deep foundation ditch mechanical stability grading forewarning system.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking: a kind of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning comprise the steps:
(1) the regional stratum hydrogeological engineering geological conditions of the studied deep foundation ditch of investigation obtains its Rock And Soil physical and mechanical parameter;
(2) deep foundation ditch regional stratum hydrogeological engineering geological conditions, this zone Rock And Soil physical and mechanical parameter of obtaining based on step (1) of remote monitoring and data processing host is based on continuous media fast Lagrangian analysis program FLAC
3DSet up deep pit digging mechanical stability Three-dimension Numerical Model;
(3) remote monitoring and data processing host are based on VTK (Visualization Toolkit) business software system made deep foundation ditch three-dimensional visualization safe early warning platform;
When (4) fender post is constructed: below top, foundation ditch slope, to the position suitable with the hat beam depth several pore pressure gauges are set synchronously; Along the fender post surface several pressure cells and several pore pressure gauges are installed; I iron supports two ends installation shaft power meter; The on-the-spot audible-visual annunciator of installing synchronously; Gather the lateral earth pressure of top, foundation ditch slope and the soil pore water pressure power in fender post week, fender post, the axle power Real-time Monitoring Data that i iron supports, Real-time Monitoring Data is transferred to remote monitoring and data processing host, the generated data library file, these data of deep pit digging mechanical stability Three-dimension Numerical Model real-time calling;
(5) initial these Mechanical Datas of obtaining of deep pit digging mechanical stability Three-dimension Numerical Model utilization are finished self-parameter correction and are provided each parameter model threshold value, deep pit digging mechanical stability Three-dimension Numerical Model follow-up real-time Mechanical Data and the model parameter threshold value that will collect compared afterwards, represented and super warning parameter is carried out the classification safe early warning by deep foundation ditch three-dimensional visualization safe early warning platform; The SMS module of early warning information by being connected with computer is sent to site operation and floor control related personnel's mobile phone with mobile phone short messages, realizes the distant early warning of deep foundation ditch mechanical stability; Simultaneously, early warning information also passes back to the audible-visual annunciator that is installed in the job site scope of operation by visual safe early warning platform and carries out sound, light warning, realizes on-the-spot early warning; Make the operating personnel of execution control related personnel and job site in time take relevant preventive action according to early warning information, further strengthen construction adventure management.
The present invention solves the technical scheme that above-mentioned another technical problem takes: a kind of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional pre-warning facility comprise several pressure cells, several pore pressure gauges and several axle power meters; It is characterized in that: also comprise the audible-visual annunciator, automatic data collection instrument, GPRS static data Acquisition Instrument, communications transmit base station, commercial satellite, communications reception base station, internet and the remote computer that connect successively; Pressure cell, pore pressure gauge, axle power meter and audible-visual annunciator wired connection, audible-visual annunciator and automatic data collection instrument wired connection, automatic data collection instrument other end wireless connections GPRS static data Acquisition Instrument, between GPRS static data Acquisition Instrument, communications transmit base station, commercial satellite, communications reception base station and the internet successively wireless signal communication be connected, the internet is connected with remote computer, remote computer is connected with the F2003GSMDTU SMS module, and the F2003GSMDTU SMS module is connected with several mobile phone wireless signal and communications.
During application, along foundation ditch some sections are set axially, each section is laid a pressure cell and pore pressure gauge according to the every certain interval of the deep foundation pit fender post degree of depth, and foundation ditch Po Ding and Guan Liang top certain intervals are laid a pore pressure gauge, and all i iron support two ends installation shaft power meter.
The invention provides a kind of deep foundation ditch mechanical stability remote intelligent monitoring based on pressure cell, axle power meter and pore pressure gauge and three-dimensional early warning technology.The present invention is based on deep foundation ditch Rock And Soil physical and mechanical parameter, deep foundation ditch region hydrogeology engineering geological conditions and FLAC
3DTechnology is set up construction area deep pit digging mechanical stability Three-dimension Numerical Model; And based on VTK (Visualization Toolkit) business software system made deep foundation ditch three-dimensional visualization safe early warning platform.Directly gather the lateral earth pressure Real-time Monitoring Data of fender post by pressure cell, gather i iron axial force of the supports Real-time Monitoring Data by axle power meter, gather top, foundation ditch slope and all soil pore water pressure power of fender post Real-time Monitoring Data by pore pressure gauge, and be transferred to remote monitoring and data processing host, generated data library file.The initial array data that the utilization of deep pit digging mechanical stability Three-dimension Numerical Model obtains is finished self-parameter correction and is provided each parameter model threshold value, afterwards deep pit digging mechanical stability Three-dimension Numerical Model with subsequent acquisition to real-time Mechanical Data and model parameter threshold value compare, represented and super warning parameter carried out the classification safe early warning by deep foundation ditch three-dimensional visualization safe early warning platform; Early warning information is sent to related personnel's mobile phone, early warning information also passes back to the audible-visual annunciator that is installed in the job site scope of operation by visual safe early warning platform and carries out sound, light warning, thereby finish the on-the-spot and long-range 3-dimensional digital safe early warning of deep foundation ditch mechanical stability, the related personnel is in time taken preventive measures according to early warning information, improve the deep foundation pit construction personal security.The present invention is applicable to all kinds of deep foundation pit construction environment, comprises the deep foundation pit construction environment such as special hydrology Geological Engineering, geological conditions and intensive buildings.
Description of drawings
Fig. 1 is pressure cell, axle power meter, pore pressure gauge and the audible-visual annunciator longitudinal section schematic diagram that is arranged in deep foundation ditch,
Fig. 2 is pressure cell, axle power meter, pore pressure gauge, audible-visual annunciator and automatic data collection instrument, the GPRS static data Acquisition Instrument floor map that is arranged in deep foundation ditch,
Fig. 3 is the schematic diagram of structure of the present invention, data acquisition transmission and data passback.
Among the figure: 1-pressure cell, 2-automatic data collection instrument, 3-GPRS static data Acquisition Instrument, 4-axle power meter, 5-fender post, top, 6-deep foundation ditch slope, 7-i iron supports, 8-Guan Liang, 9-foundation ditch bottom surface, 10-commercial satellite, 11-communications transmit base station, 12-internet, 13-remote computer, also claim remote monitoring and data processing host, 14-F2003GSMDTU SMS module, 15-mobile phone, 16-communications reception base station, 17-audible-visual annunciator, 18-pore pressure gauge.
The specific embodiment
System Implementation is Fig. 1, Fig. 2 and shown in Figure 3 for example: a kind of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional pre-warning facility comprise several pressure cells 1, several pore pressure gauges 18 and several axle power meters 4; Also comprise the audible-visual annunciator 17, automatic data collection instrument 2, GPRS static data Acquisition Instrument 3, communications transmit base station 11, commercial satellite 10, communications reception base station 16, internet 12 and the remote computer 13 that connect successively; Pressure cell 1, pore pressure gauge 18, axle power meter 4 and audible-visual annunciator 17 wired connections, audible-visual annunciator 17 and automatic data collection instrument 2 wired connections, automatic data collection instrument 2 other end wireless connections GPRS static data Acquisition Instruments 3, GPRS static data Acquisition Instrument 3, communications transmit base station 11, commercial satellite 10, between communications reception base station 16 and the internet 12 successively wireless signal communication be connected, internet 12 is connected with remote computer 13, remote computer 13 is connected with F2003GSMDTU SMS module 14, and F2003GSMDTU SMS module 14 is connected with several mobile phone 15 wireless signal communications.
Audible-visual annunciator 17 adopts the tower LED audible-visual annunciator of ADS-R3 serial ports, is provided by the Ai Desi of Shenzhen Science and Technology Ltd..
Referring to Fig. 1 and Fig. 2: deep foundation ditch comprises top 6, deep foundation ditch slope and foundation ditch bottom surface 9; Along foundation ditch some sections are set vertically, each section is laid a pressure cell 1 and a pore pressure gauge 18 at regular intervals according to the deep foundation pit fender post degree of depth, each pressure cell 1 is connected in series successively, each pore pressure gauge 18 is connected in series successively, like this, the pressure cell 1 of serial connection forms several pressure cells 1 successively, and the pore pressure gauge 18 of serial connection forms a plurality of pore pressure gauges 18 successively; To the position suitable with hat beam 8 degree of depth pore pressure gauge 18 is set synchronously at regular intervals below top, deep foundation ditch slope 6, each pore pressure gauge 18 is connected in series successively, and like this, the pore pressure gauge 18 of serial connection forms several pore pressure gauges 18 successively; Support 7 two ends at each i iron an axle power meter 4 is set, the axle power meter 4 at two ends is connected in series respectively successively, like this, supports several axle power meters 4 that 7 two ends arrange serial connection altogether at all i iron.
Several pore pressure gauges 18 comprise a plurality of pore pressure gauges 18 and several pore pressure gauges 18.Audible-visual annunciator 17 is installed in deep foundation pit construction field operation face.
Present embodiment is connected to a main line with pressure cell 1, pore pressure gauge 18 and axle power meter 4, can reduce the connecting line of job site, but pressure cell 1, pore pressure gauge 18 and the mode that is connected in series of axle power meter 4 are not subjected to the restriction of embodiment.
Embodiment of the method
(1) select a deep foundation ditch as the object of deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning System Implementation; Investigation deep foundation ditch regional stratum hydrogeological engineering geological conditions obtains its Rock And Soil physical and mechanical parameter;
(2) remote monitoring and data processing host 13 are set up pre-warning facility objective for implementation zone deep pit digging mechanical stability Three-dimension Numerical Model, set up deep foundation ditch three-dimensional visualization safe early warning platform.The foundation of deep pit digging mechanical stability Three-dimension Numerical Model is based on deep foundation ditch regional stratum hydrogeological engineering geological conditions, this zone Rock And Soil physical and mechanical parameter and continuous media fast Lagrangian analysis program FLAC
3DDeep foundation ditch three-dimensional visualization safe early warning platform is based on VTK (Visualization Toolkit) business software system;
When (3) fender post 5 is constructed, below top, foundation ditch slope 6, to the position suitable with hat beam 8 degree of depth several pore pressure gauges 18 are set synchronously; Along the fender post surface several pressure cell 1 and several pore pressure gauges 18 are installed; I iron supports 7 two ends installation shaft power meters 4; The on-the-spot audible-visual annunciator 17 of installing synchronously; Gather the axle power Real-time Monitoring Data of top 6, foundation ditch slope and fender post 5 all soil pore water pressure power, fender post 5 lateral earth pressures, i iron support 7, and be transferred to remote monitoring and data processing host, the generated data library file, these data of deep pit digging mechanical stability Three-dimension Numerical Model real-time calling; And Real-time Monitoring Data is sent to GPRS static data Acquisition Instrument 2 by automatic data collection instrument 2, send to commercial satellite 10 by near the communications transmit base station 11 GPRS static data Acquisition Instrument 3 again, be transferred to afterwards other communications reception base stations 16, and enter internet 12 and be transferred to remote monitoring and data processing host 13, the generated data library file, these data of deep pit digging mechanical stability Three-dimension Numerical Model real-time calling;
(4) the initial array data that obtains of deep pit digging mechanical stability Three-dimension Numerical Model utilization is finished self-parameter correction and is provided each parameter model threshold value, afterwards deep pit digging mechanical stability Three-dimension Numerical Model with subsequent acquisition to real-time Mechanical Data and model parameter threshold value compare, represented and super warning parameter carried out the classification safe early warning by deep foundation ditch three-dimensional visualization safe early warning platform; The SMS module 14 of early warning information by being connected with computer is sent to site operation and floor control related personnel's mobile phone 15 with mobile phone short messages, realizes the distant early warning of deep foundation ditch mechanical stability; Simultaneously, early warning information also passes back to the audible-visual annunciator 17 that is installed in the job site scope of operation by visual safe early warning platform and carries out sound, light warning, realize on-the-spot early warning, make the operating personnel of execution control related personnel and job site in time take relevant preventive action according to early warning information, further strengthen construction adventure management.
Claims (7)
1. a deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional method for early warning comprise the steps:
(1) the regional stratum hydrogeological engineering geological conditions of the studied deep foundation ditch of investigation obtains its Rock And Soil physical and mechanical parameter;
(2) deep foundation ditch regional stratum hydrogeological engineering geological conditions, this zone Rock And Soil physical and mechanical parameter of obtaining based on step (1) of remote monitoring and data processing host is based on continuous media fast Lagrangian analysis program FLAC
3DSet up deep pit digging mechanical stability Three-dimension Numerical Model;
(3) remote monitoring and data processing host are based on VTK (Visualization Toolkit) business software system made deep foundation ditch three-dimensional visualization safe early warning platform;
When (4) fender post is constructed: below top, foundation ditch slope, to the position suitable with the hat beam depth several pore pressure gauges are set synchronously; Along the fender post surface several pressure cells and several pore pressure gauges are installed; I iron supports two ends installation shaft power meter; The on-the-spot audible-visual annunciator of installing synchronously; Gather the lateral earth pressure of all soil pore water pressure power of top, foundation ditch slope and fender post, fender post, the axle power Real-time Monitoring Data that i iron supports, and be transferred to remote monitoring and data processing host, the generated data library file, these data of deep pit digging mechanical stability Three-dimension Numerical Model real-time calling;
(5) the initial array data that obtains of deep pit digging mechanical stability Three-dimension Numerical Model utilization is finished self-parameter correction and is provided each parameter model threshold value, deep pit digging mechanical stability Three-dimension Numerical Model follow-up real-time Mechanical Data and the model parameter threshold value that will collect compared afterwards, represented and super warning parameter is carried out the classification safe early warning by deep foundation ditch three-dimensional visualization safe early warning platform; The SMS module of early warning information by being connected with computer is sent to site operation and floor control related personnel's mobile phone with mobile phone short messages, realizes the distant early warning of deep foundation ditch mechanical stability; Simultaneously, early warning information also passes back to the audible-visual annunciator that is installed in the job site scope of operation by visual safe early warning platform and carries out sound, light warning, realizes on-the-spot early warning; Make the operating personnel of execution control related personnel and job site in time take relevant preventive action according to early warning information, further strengthen construction adventure management.
2. a deep foundation ditch mechanical stability remote intelligent monitoring and three-dimensional pre-warning facility comprise several pressure cells, several pore pressure gauges and several axle power meters; It is characterized in that: also comprise the audible-visual annunciator (17), automatic data collection instrument (2), GPRS static data Acquisition Instrument (3), communications transmit base station (11), commercial satellite (10), communications reception base station (16), internet (12) and the remote computer (13) that connect successively; Pressure cell (1), pore pressure gauge (18), axle power meter (4) and audible-visual annunciator (17) wired connection, audible-visual annunciator (17) and automatic data collection instrument (2) wired connection, automatic data collection instrument (2) other end wireless connections GPRS static data Acquisition Instruments (3), GPRS static data Acquisition Instrument (3), communications transmit base station (11), commercial satellite (10), between communications reception base station (16) and internet (12) successively wireless signal communication be connected, internet (12) is connected with remote computer (13), remote computer (13) is connected with F2003GSMDTU SMS module (14), and F2003GSMDTU SMS module (14) is connected with several mobile phones (15) wireless signal communication.
3. a kind of deep foundation ditch mechanical stability remote intelligent monitoring as claimed in claim 2 and three-dimensional pre-warning facility, it is characterized in that: along foundation ditch some sections are set vertically, each section is laid a pressure cell (1) and pore pressure gauge (18) by the interval, each pressure cell (1) is connected in series successively, each pore pressure gauge (18) is connected in series successively, the pressure cell (1) of serial connection forms several pressure cells (1) successively, and the pore pressure gauge (18) of serial connection forms a plurality of pore pressure gauges (18) successively; By the interval pore pressure gauge (18) is set synchronously to the position suitable with Guan Liang (8) degree of depth below the deep foundation ditch top, slope (6), each pore pressure gauge (18) is connected in series successively, and the pore pressure gauge (18) of serial connection forms several pore pressure gauges (18) successively; Each i iron supports (7) two ends an axle power meter (4) is set, and the axle power meter (4) at two ends is connected in series respectively successively, and all i iron support (7) two ends several axle power meters (4) are set altogether.
4. a kind of deep foundation ditch mechanical stability remote intelligent monitoring as claimed in claim 3 and three-dimensional pre-warning facility is characterized in that: several pore pressure gauges (18) comprise a plurality of pore pressure gauges (18) and several pore pressure gauges (18); Audible-visual annunciator (17) is installed in deep foundation pit construction field operation face.
5. a kind of deep foundation ditch mechanical stability remote intelligent monitoring as claimed in claim 4 and three-dimensional pre-warning facility, it is characterized in that: several pressure cells (1), several pore pressure gauges (18) and several axle power meters (4) all are connected with a main line, and audible-visual annunciator (17) is connected in main line.
6. such as the described a kind of deep foundation ditch mechanical stability remote intelligent monitoring of claim 2 to 5 any one and three-dimensional pre-warning facility, it is characterized in that: audible-visual annunciator (17) adopts the tower LED audible-visual annunciator of ADS-R3 serial ports.
7. a kind of deep foundation ditch mechanical stability remote intelligent monitoring as claimed in claim 6 and three-dimensional pre-warning facility is characterized in that: remote computer (13) is set up deep pit digging mechanical stability Three-dimension Numerical Model and deep foundation ditch three-dimensional visualization safe early warning platform.
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| CN103352483A (en) * | 2013-07-22 | 2013-10-16 | 广西土木勘察检测治理有限公司 | Deep foundation pit monitoring and early warning system |
| CN103471647A (en) * | 2013-08-21 | 2013-12-25 | 国家电网公司 | Long-distance automatic monitoring method for shield tunnel |
| CN104452836A (en) * | 2014-12-10 | 2015-03-25 | 青岛理工大学 | Stability detection early warning method for deep foundation pit supporting structure |
| CN110144898A (en) * | 2019-04-03 | 2019-08-20 | 中铁八局集团第一工程有限公司 | The real-time security alarm system of Foundation Pit Construction and method |
| CN113914386A (en) * | 2021-11-04 | 2022-01-11 | 中国市政工程西北设计研究院有限公司 | Intelligent monitoring method for deep foundation pit support safety based on BIM +3S technology |
| CN114164871A (en) * | 2021-11-11 | 2022-03-11 | 中铁第四勘察设计院集团有限公司 | Pressure monitoring device and pressure monitoring method for deep foundation pit |
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| CN103352483A (en) * | 2013-07-22 | 2013-10-16 | 广西土木勘察检测治理有限公司 | Deep foundation pit monitoring and early warning system |
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| CN114164871A (en) * | 2021-11-11 | 2022-03-11 | 中铁第四勘察设计院集团有限公司 | Pressure monitoring device and pressure monitoring method for deep foundation pit |
| CN114164871B (en) * | 2021-11-11 | 2023-08-08 | 中铁第四勘察设计院集团有限公司 | Pressure monitoring device and pressure monitoring method for deep foundation pit |
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Application publication date: 20130417 |