Abstract: A method for managing hazards in a construction site is presented. One aspect of the inventive subject matter includes a hazard management process that utilitizes a hazard context database, a sensor interface, and a hazard analysis engine. The sensor interface is configured to acquire a site data feed that is representative of a construction site. The hazard analysis engine is configured to (i) instantiate a hazard object by comparing the site data feed to hazard criteria of the plurality of hazard contexts, (ii) update the hazard object based on the site data feed, (iii) generate hazard notification criteria related to the hazard object, (iv) obtain worker attributes from the site data, and (v) transmit a hazard notification to an output device when the worker attributes cause satisfaction of the hazard notification criteria.

Abstract: A system for managing hazards in a construction site is presented. One aspect of the inventive subject matter includes a hazard management system comprising a hazard context database, a sensor interface, and a hazard analysis engine. The sensor interface is configured to acquire a site data feed that is representative of a construction site. The hazard analysis engine is configured to (i) instantiate a hazard object by comparing the site data feed to hazard criteria of the plurality of hazard contexts, (ii) update the hazard object based on the site data feed, (iii) generate hazard notification criteria related to the hazard object, (iv) obtain worker attributes from the site data, and (v) transmit a hazard notification to an output device when the worker attributes cause satisfaction of the hazard notification criteria.

Abstract: A high-pressure device has a drill stem (242) with a drill head (244) delivering a high-pressure fluid jet. A shield (246) is movably coupled to the device, wherein the drill head (244) is at least partially enclosed by the shield (246) when the drill head (244) is removed from the container (23).