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The circumferential joint of a shield tunnel is prone to damage under strong earthquakes, affecting the safety of the tunnel. This paper adopts an innovative shape memory alloy (SMA) flexible circumferential joint for longitudinal seismic mitigation of the tunnel. The SMA joint is composed of SMA ring springs and ordinary bolts. The SMA joint design is performed for a shield tunnel, and a simplified...
Government procurement performance evaluation is an effective means to expedite the procurement outcome of government's departments. The key factor to setting up an effective evaluation system of government procurement is choosing reasonable evaluation indexes with accurate weights related. The purpose of this paper is to provide a new method based on data mining to improve the GP evaluation system,...
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