Teamwhole - Model DHD COP SD NUMA QL - DTH Hammer Application In Pile Foundation With Model NUMAQL DHD TK SD Shank
1.Advantages of construction method
Use:DTH Hammer drilling is a good way to drill through cave formation and avoid stuck problem
Cave:When encountering caves,drill bit inclines to the cave.The stabilizer ensures the hole straightness
Bit stuck;One reason is cave encounter,the drill bit deviates,and the entire set of drilling tools inclines in the hole.The other,is hole collapse.A large number of rock or clay catch the drill pipe,resulting in bit stuck.Steel casing and stabilizer can resolve this problem.
2.Detailed structure information
DTH hammer series can match to different shank bit like
TH3.5/COP32/DHD3.5/COP34/MACH303/BR33
TH4/DHD340/COP44/MACH44/SD4/QL40
TH5/DHD350/COP54/MACH50/MISSION50/SD4/QL50
TH6/DHD360/COP64/MISSION60/COP64 G/SD6
TH8/DHD380/SD8/QL80
TH10/SD10/NUMA100
TH12/DHD112/SD12/NUMA120
TH180/NUMA125
TH18/NUMA180
TK24/TK28
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