Pressure relief for roadways retained by roof cutting is essentially caused stress transfer. In this paper, the transfer mechanism of 16011 tail entry with in Zhaogu No.1 coal mine studied from following two aspects: change surrounding rock structure and interaction between roadway supporting structures. It found numerical simulation that can significantly reduce magnitude stress, transferring ...

Abstract Fully grouted rock bolting is commonly used in roadway reinforcement mining and tunnelling reinforcement.

Abstract As one of the most common disasters in deep mine roadway, floor heave has caused serious obstacles to transportation and normal production activities. The third section winch roadway mining area Qitaihe Longhu coal a due large buried depths semicoal rock maximum is 750 mm. For problem stability, this paper establishes mechanical model analyze stability by analogy with basement foundati...

A reasonable width of the coal pillar is very important to surrounding rock control gob-side roadway. An unreasonable will make roadway be located within range strong mining influence, leading severe deformation Severe subsidence at side roof and serious are problems caused by dynamic pressure due in This paper studies instability mechanism rational under influence intense pressure. The results...

Both the deformation characters and the failure mode of the large cross-sectional longwall installation roadway under compound roof are becoming an emergent issue than ever before due to the rapid development of modern mining equipment. Various engineering applications have revealed that the insufficient design and inappropriate support technology are the main reasons for the fatal accidents as...

Abstract: A multi-viewpoint integration scheme is introduced to recognize scene features prior to physical access. In this schematics, chromatic complexity of vehicle’sand bird’s-eye-views of roadway scenes are matched to extend GPS tracks towards possible destinations. Saliency patterns arising in destination images are anticipatively extracted to control the focus of inherent and machine visi...

The article examines the role of automobility in US-based anti-racism demonstrations and counter-demonstrations. We contrast spatial strategies highway occupations by racial justice activists, with so-called “weaponised car” attacks American far right. Analysing online memes anti-protest legislation, explores under-acknowledged links between “automobile supremacy”—the structure motorists' privi...

Speed management has been an extensive focus of traffic safety research dating back to the 1960’s. Research has generally shown crash risk to increase as the average speed of traffic increases and as the standard deviation of travel speeds increases within a traffic stream. However, research as to the effects of speed limits has been somewhat inconclusive. This study investigates how speed limi...