Centering Guide For Bored Piling Foundation
Collapse burying of inclined borehole has always been a technical problem in geological drilling. In order to prevent collapse, many technicians Mud wall protection and other measures are mostly used, but the effect is very little. It is difficult to avoid hole wall collapse, block falling, hole oblique sticking and even hole waste.
Avoid accidents. Recently, during the construction of the water regime observation borehole of the coal seam floor, we encountered the problem of hole wall falling and hole oblique sticking.
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