The further excavation of underground powerhouse will affect the stress distribution of system bolts and rock mass near crane girder.
地下厂房的继续开挖对于吊车梁系统锚杆和周围岩体的应力分布有较大影响。
The structure of high web is often adopted in the overhead launching gantrys main girder that are connected by the high-strength bolts.
造桥机主梁一般采用高腹板箱梁结构，主梁之间通过高强螺栓群相互连接。
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