Now,common technology of impact moles can’t satisfy the demand of underground construction. The steerable impact moles is a new trend. This article enumerates several products or samples. Through analyzing them, yon ...Now,common technology of impact moles can’t satisfy the demand of underground construction. The steerable impact moles is a new trend. This article enumerates several products or samples. Through analyzing them, yon can see that technologies of steerable impact moling are more suitable to current construction, also the key technology and structural character of those products and samples mentioned above is analyzed.展开更多
文摘Now,common technology of impact moles can’t satisfy the demand of underground construction. The steerable impact moles is a new trend. This article enumerates several products or samples. Through analyzing them, yon can see that technologies of steerable impact moling are more suitable to current construction, also the key technology and structural character of those products and samples mentioned above is analyzed.