山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2012年
28期
178-180
,共3页
海底隧道%合理埋置深度%自稳性
海底隧道%閤理埋置深度%自穩性
해저수도%합리매치심도%자은성
subsea tunnel%reasonable depth of embedment%autologous stability
通过对长大海底隧道上覆地层力学性能分析,从海底隧道开挖后毛洞的自稳性角度出发,在无侧向作用的深海水层竖向作用下将海底隧道硬质穿越层考虑为板状岩层,按硬质岩层的抗剪应力理论确定了长大海底隧道的合理埋置深度,对结构设计的受力要求,安全要求和经济要求方面都有其积极的意义。
通過對長大海底隧道上覆地層力學性能分析,從海底隧道開挖後毛洞的自穩性角度齣髮,在無側嚮作用的深海水層豎嚮作用下將海底隧道硬質穿越層攷慮為闆狀巖層,按硬質巖層的抗剪應力理論確定瞭長大海底隧道的閤理埋置深度,對結構設計的受力要求,安全要求和經濟要求方麵都有其積極的意義。
통과대장대해저수도상복지층역학성능분석,종해저수도개알후모동적자은성각도출발,재무측향작용적심해수층수향작용하장해저수도경질천월층고필위판상암층,안경질암층적항전응력이론학정료장대해저수도적합리매치심도,대결구설계적수력요구,안전요구화경제요구방면도유기적겁적의의。
In this article, the mechanical property of superstratum of long subsea tunnel is analysed. Considering the autologous stability of stra-turns of rock cavity after the undersea tunnel is tunneled, the stratums cut across by the long subsea tunnel is looked as tabular stratums on the condition of deep sea water' s vertical action. Based on the theoretical of shearing stress of scleroid stratum, the reasonable depth of embedment of long subsea tunnel is confirmed, which has positive significance for the stress demand, security demand and economic demand of the structural design.