大直径管 meaning in Chinese

broad diameter tube
large diameter pipe
trunk main
trunk stream

Research on performance of laterally loaded large - diameter pipe piles based on finite element analysis
水平承载大直径管桩工作性状的有限元研究
Calculation for the ultimate axial bearing capacity of large diameter prestressed concrete cylinder pile
预应力混凝土大直径管桩轴向极限承载力计算
Can not pile frames , dual vibratory hammer or hammer in high tonnage joint use of large diameter pile
还可以不用桩架组合，双锤或多锤在高吨位大直径管桩上联合使用。
Port engineening technical code of design and constraction for large diameter post tensioned prestress concrete cylinder pile
港口工程预应力混凝土大直径管桩设计与施工规程
Based on the analysis of the inadequacy of the lifting capacity of piling barge in large - diameter prestressed concrete pipe pile driving construction , the measure of applying buoyancy generated by cavity drainage to remedy the inadequacy is put forward
摘要针对混凝土大直径管桩沉桩施工时打桩船吊装能力存在不足的问题进行了分析，提出了利用管桩空腔排水产生的浮托力来弥补的措施。