Recently, Steve Cummer, Associate Professor of Electrical and Computer Engineering at Duke University announced that it is theoretically possible to create such a sound shield.
近日，杜克大学电子信息工程学院副教授Steve Cummer声称，从理论上这种声音屏障是可造的。
2
But the poor geological adaptability, construction may face some problem, this paper discussed with an engineering example of shield method in urban subway construction strategies of the special area.