Result of synthetically analyzing and mechanical computation turns out that the unsymmetricalload is the main cause of the cracks in tunnel lining.
经综合分析及力学计算，存在较大偏压是隧道衬砌产生裂缝的主要原因。
2
The motors with unsymmetricalload such as fans and water pumps are used widely. They will consumes a great deal of power energy, if controlled by accommodating the bafflesand valves.
风机、水泵这类不均匀负荷的电动机使用面非常广，仍然采用挡板、阀门控制流量的方式多消耗大量电能。
3
Basing on the rock mechanics property of shallow tunnel under unsymmetrical pressure, a load-structure model is used to calculate internal force and displacement of tunnel lining.