廣東虎門二橋是世界最寬的鋼箱梁懸索橋，中交二公局承建虎門二橋S1標(biāo)、S2標(biāo)兩個(gè)標(biāo)段，其中S2標(biāo)大沙水道橋?yàn)橹骺鐝?200米的鋼箱梁懸索橋，S1標(biāo)東涌互通施工需跨越高鐵、地鐵、高速公路、油氣管線等，施工難度極大。
　　The Second Humen Bridge in Guangdong Province is the widest steel boxgirder suspension bridge in the world. Two sections of the Second Humen Bridge,S1 and S2, were contracted by CCCC Second Highway Engineering. Among them, S2of Dasha Aqueduct is a steel box girder suspension bridge with the main span of1200m, and S1 of Dongyong Interchange spans high-speed railway, subway,expressway and oil and gas pipelines. It is very difficult to construct.