Pipe laying process, rammer selection, pipe laying precision, grout lubricating and other applications of pneumatic pipe-rammer are introduced.

• 还介绍了气动夯管锤铺管施工过程、动夯管锤的选用、动夯管锤的铺管精度和注浆润滑等问题以及气动夯管锤在其它工程中的应用。