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circulating medium 通用貨幣;流通票據。

circulating real capital

Landslide is a geological hazard with serious losses . it is very important to research the controling methods . slide - resistant pile , which has many advantages such as high adaptability , little interference to landslide and geological environment , short construction time , high silde resistance , is a main method to control landslide . pneumatic down - the - hole hammer is a drilling method with many advantages . its features , such as wide application range , high hole quality , no circulating medium , low operation regulations , and drilling big diameter rock hole , fit to construct slide - resistant pile . according to the requirement of silde - resistant pile construction , this paper analyses feasibility that pneumatic dth hammer drilling applies to construct slide - resistant pile on the basis of introducing the features of pneumatic dth hammer . then an applied example is given 滑坡是一種危害極大的地質災害,它的整治方法研究具有重要意義.抗滑樁是一種適應性強、對滑坡穩定性和地質環境干擾小、工期短、抗滑能力強的滑坡整治方法.風動潛孔錘鉆進是一種具有許多優點的鉆進方法,它的許多特點,如成孔質量高、應用范圍廣、無液體循環介質、鉆進規程參數小、可實現大直徑基巖鉆孔等都適合于抗滑樁施工.文章在介紹風動潛孔錘鉆進特點的基礎上,根據抗滑樁施工要求,分析了風動潛孔錘用于抗滑樁施工的可行性,并舉出了其應用實例