Performance Of Construction Operations Research Articles

Swarm nodes for automated steel installation tracking: A case study

Abstract Monitoring the installation of building components offers great opportunities for enhancing not only the productivity but the performance of construction operations. Existing approaches and technologies still suffer from low level automation and lack of adaptability to material installation processes. This paper examines the feasibility of automatically tracking the installation of building components using proximity data obtained from swarm nodes. Proximity data were collected from tagged steel components during the installation process and compared with that obtained from the design model. Experiments were conducted to determine the accuracy of the swarm nodes. The error obtained from the experiments was used to set a buffer or tolerance around the components for accurately capturing the installation status in the developed system. This result has demonstrated that the application of swarm nodes has the potential to automatically track the installation of building components.

Assembling of Steel Angle Headframe of Multifunctional Purpose

The article reviews new technical solution on equipment provision of vertical shaft utilizing steel headframe of multifunctional purpose. Practice of construction of coal and ore mines provides application of various designs for steel angle headframes which are divided into separate large assembly blocks and constructive elements during assembling operations. Design of these blocks and elements, their weight and dimensions effect the chose of the method of assembling on which economic and technological indicators, as well as duration of down-time, depend on during performance of construction operations in shaft. The technical solution on equipment provision for mine vertical shaft using headframe of multifunctional purpose will allow changing the management construction of vertical shaft. The proposed headframe combines the functions of sinking and operation that eliminates costs for assembling/dissembling of temporary headgear. The constructive design of the headgear allows application of the effective method of assembly and thus to provide improvement of the technical and economic indexes, and high calendar time rate of the shaft construction due to reduction of duration of works on equipment provision for the shaft and to refurbishment of the shaft in order to carry out horizontal mining.

New Technical Solution for Vertical Shaft Equipping Using Steel Headframe of Multifunction Purpose

The article reviews a novel approach to the design of steel angle headframe for vertical shafts of coal and ore mines on the basis of rational design solutions. Practice of construction of coal and ore mines provides application of various designs for steel angle headframes which are divided into separate large assembly blocks and constructive elements during assembling operations. Design of these blocks and elements, their weight and dimensions effect the chose of the method of assembling on which economic and technological indicators, as well as duration of down-time, depend on during performance of construction operations in shaft. The technical solution on equipment provision for mine vertical shaft using headframe of multifunctional purpose will allow changing the management construction of vertical shaft. The constructive design of the headgear allows application of the effective method of assembly and thus to provide improvement of the technical and economic indexes, and high calendar time rate of the shaft construction due to reduction of duration of works on equipment provision for the shaft and to refurbishment of the shaft in order to carry out horizontal mining.