| In the landslide and slope management, anchoring drilling methods used mainly Rotary-drilling or one-way Pneumatic DTH for drilling. With a one-way Pneumatic DTH improve work efficiency and avoid the formation of the water damage, but vulnerable strata landslide caused sticking incident, which led to withdraw from the drill can not be scrapped. To address the above issues, at home 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 address cards and drilling holes accident. Anchorage is used in the field of construction of a new model, the impact of the two-way function has made important innovation.Based on drilling technology, aerodynamics, thermodynamics works, the impact of mechanical systems dynamics, mechanical principles, optimization theory and computer simulation knowledge-based, two-way system on the aerodynamic DTH the theoretical analysis and design, the main content:1, has developed a two-way impact-Rotary function of two-way air-hammer. The design of the traditional non-pneumatic-valve DTH as the main objective of the design, exhaust-control center for axial movement, the impact can be done by institutions is, the opposite direction impact.2, a numerical simulation to establish mathematical models, running through the various stages of the Detroit situation analysis, research conducted before and after the Pistons were the driving force at the impact of the process, and the design parameters, the structure is more reasonable.3, under stress wave theory, the analysis of the key components of the forces. According to key parts of the real structure, material properties to establish finite element model. The simulation analysis, and optimize the parameters of the key components to improve its service life.
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