In this paper a nonlinear dynamic analysis of a three-hinged-arch subjected to the ground explosive wave obtained from a testing site is described. The results are in accord with visual investigation.

本文根据现场实测的爆炸地震波，对离壁式三铰拱衬套进行了非线性反应分析，所得结果与爆后现场宏观调查结果基本一致。

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In a second category A case, which was reported recently by the Air Accidents Investigation Branch, a departing BAe 146 aircraft almost collided on the ground with an arriving two-seater Piper aircraft at Birmingham airport.

BBC: Jet in near miss mid-air collision

Tendering for the ground investigation work at that site will begin early next month, with teams getting on site later this year.

BBC: Ground works to start on Inverness to Perth A9 upgrade