Quality And Efficient Anchorage Technology Research And Application

In management of landslide and slope, the anchor hole using rotary drilling methods, carried out a one-way DTH drilling. Using one-way pneumatic DTH drilling to make working efficiency, avoid the water damage on the formation, but vulnerable to landslides caused by sticking stratum accident, resulting from the hole and can not be scrapped. In order to solve the problems above, at domestic and abroad in the comprehensive analysis of existing products and related literature on the basis of the one-way impact of conventional drilling and rotary drilling methods combined, set impact - Rotary function as one, has developed a two-way impact ~ Rotary aerodynamic characteristics of the two-way DTH equipment, to solve cards and drilling holes accident. Anchorage is used in the field of construction as a new model, the impact of the two-way function has made important innovation.In this paper, two-way pneumatic DTH bit part of a simulation study, and two-way pneumatic impactor were related to indoor and field experiments, the main content concluding:1, Introduces the relevant parts Of two-way pneumatic impactor, which has been completed.2, Adopt the numerical simulation means, set up mathematical model, pass imitating and contrast to the bit part, make design parameter, structure more rational.3, through laboratory tests and field trials to further optimize and validate a two-way pneumatic DTH practicality to the designing and using target.4, prepares the relevant technical rules, so that when the construction site to better utilization of equipment in order to achieve better results and the construction of good economic benefits.