The first new design was by Alexander Gorlov, a Russian civil engineer who worked on the Aswan High Dam in Egypt.
第一个新设计是俄罗斯的土木工程师亚历山大.佐罗夫完成的，他先在埃及的阿斯旺大坝工作，后来移居到美国。
If the excavation is more than 4 meters in depth, he will assign a Civil Engineer to provide a load calculation, shoring design and oversee the shoring construction during excavation.
如果挖掘深度超过4米，要指派一名土建工程师进行负荷计算、支护设计并在开挖期间监督支护施工。
If the excavation is more than 4 meters in depth, he will assign a Civil Engineer to provide a load calculation, shoring design and oversee the shoring construction during excavation.
如果挖掘深度超过4米，要指派一名土建工程师进行负荷计算、支护设计并在开挖期间监督支护施工。
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