The Study on Island Rock-Mass Mechanical Parameters in a Sea-Crossing Bridge

摘要

A sea-crossing bridge is able to shorten distance between two areas obviously, which are consequently developing rapidly in China recently. However, available bridge groups for sea-crossing bridges can be scattered in a sea-area island, which is limited by topographic settings. Construction conditions and stability of bridges are determined by the rock-mass strength of islands outcrops. Through laboratory tests of rock mass strength and large-scale field shearing tests, plus detailed analysis of special geological environment features of the islands and engineering analogy method, a method of acquiring rock-mass mechanical parameters was constructed reasonably. The suggestive value for physical and mechanics parameters for basic anchorage rock mass in a bridge case was proposed in this paper.