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Automatic Monitoring of Grouting Performance Parameters
Grout pressure and injected grout volumes are the two critical performance parameters that are commonly considered to evaluate the success of grouting operations. These two parameters have traditionally been measured using direct read devices such as Bourdon gages and flow meters. Direct read devices are however subject to errors and omissions from the operator, do not provide context, and do not provide a record of the grouting process for project documentation. For this reason, attempts at automatic recording of grout pressures and injected grout volumes started as early as in the `80s but the recording systems available at that time were bulky, costly, and usually required proprietary software. Nowadays, instruments and components are available that allow us to build light, portable and reliable grout monitoring systems that can be deployed easily by simple connection to the grout injection circuit. Further, the data can be processed in standard programs such as Microsoft Excel. The paper reports on a simple commercially available Grout Monitoring System that uses standard software. It has been developed and used on numerous permeation and compaction grout injection projects. Features of the system include a low-power data logger that can read pressure and flows at up to 2 second intervals, wireless interface to a field PC for real-time display of grouting parameters, and plotting of grout injection strategies such as GIN and others, including custom-defined strategies. The system can be expanded to suit project requirements such as logging several injection points simultaneously, local and remote display, web display, distribution via FTP sites, and monitoring of additional parameters such as grout density, ground heave or tilt of adjacent structures.
Automatic Monitoring of Grouting Performance Parameters
Grout pressure and injected grout volumes are the two critical performance parameters that are commonly considered to evaluate the success of grouting operations. These two parameters have traditionally been measured using direct read devices such as Bourdon gages and flow meters. Direct read devices are however subject to errors and omissions from the operator, do not provide context, and do not provide a record of the grouting process for project documentation. For this reason, attempts at automatic recording of grout pressures and injected grout volumes started as early as in the `80s but the recording systems available at that time were bulky, costly, and usually required proprietary software. Nowadays, instruments and components are available that allow us to build light, portable and reliable grout monitoring systems that can be deployed easily by simple connection to the grout injection circuit. Further, the data can be processed in standard programs such as Microsoft Excel. The paper reports on a simple commercially available Grout Monitoring System that uses standard software. It has been developed and used on numerous permeation and compaction grout injection projects. Features of the system include a low-power data logger that can read pressure and flows at up to 2 second intervals, wireless interface to a field PC for real-time display of grouting parameters, and plotting of grout injection strategies such as GIN and others, including custom-defined strategies. The system can be expanded to suit project requirements such as logging several injection points simultaneously, local and remote display, web display, distribution via FTP sites, and monitoring of additional parameters such as grout density, ground heave or tilt of adjacent structures.
Automatic Monitoring of Grouting Performance Parameters
Taylor, Robert M. (Autor:in) / Choquet, Pierre (Autor:in)
Proceedings of the Fourth International Conference on Grouting and Deep Mixing ; 2012 ; New Orleans, Louisiana, United States
Grouting and Deep Mixing 2012 ; 1494-1505
17.08.2012
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Piles , Mixing , Grouting , Highways and roads , Chemical grouting , Anchors , Cement , Foundations , Cutoffs , Parameters , Hydraulic structures , Monitoring
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