Abstract
Mobile construction machineries are accident-prone on a dynamic construction site, as the site environment is constantly changing and continuous safety monitoring by human beings is impossible. These accidents usually happen in the form of machinery overturning or collapsing into risk areas, including the foundation pit, slopes, or soft soil area. Therefore, preventing mobile construction machineries from entering risk areas is the key. However, currently, there is a lack of practical safety management techniques to achieve this. Utilizing a wireless sensor device to collect the location information of mobile construction machineries, this research develops a safety warning algorithm to prevent the machineries moving into risk area and reduces onsite overturning or collapsing accidents. A modified axis aligned bounding box method is proposed according to the movement patterns of mobile construction machineries, and the warning algorithm is developed based on the onsite safety management regulations. The algorithm is validated in a real case simulation when machinery enters the warning zone. The simulation results showed that the overall algorithm combining the location sensing technology and the modified bounding box method could detect risk and give warnings in a timely manner. This algorithm can be implemented for the safety monitoring of mobile construction machineries in daily onsite management.
Highlights
Published: 25 October 2021With the increasing complexity of modern construction projects, the types and quantity of onsite construction machinery are increasing, which brings more challenges for the safety management on construction sites
There is no specific category for accidents related to mobile construction machineries, it is widely known that, compared to fixed construction equipment and facilities, mobile construction machineries are more frequently involved in onsite accidents
This paper aims to develop a safety warning algorithm to prevent mobile construction machineries from entering risk areas, to minimize or totally avoid overturning and collapsing accidents
Summary
Published: 25 October 2021With the increasing complexity of modern construction projects, the types and quantity of onsite construction machinery are increasing, which brings more challenges for the safety management on construction sites. 30.78% of total accidents in respective years have involved machineries, and they are from three categories: (1) construction machine and equipment injury; (2) foundation/ground collapsing accidents, which are caused by a lack of management of mobile machinery, and (3) others including vehicle injury [2,3]. There is no specific category for accidents related to mobile construction machineries, it is widely known that, compared to fixed construction equipment and facilities, mobile construction machineries are more frequently involved in onsite accidents. Accidents involving construction machineries are likely to cause long project delays and large economic loss, as construction machineries are key components to keep projects on schedule and are expensive equipment [4,5]. Some areas areareas not bile machineries, and are they are presented red rectangles in 11.
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