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随着国民经济的发展,在经济建设和国防建设中地下工程应用日益增长,喷锚支护作为一种经济而有效的地下工程支护手段,也随之发展起来。但是,与喷锚支护技术的迅速推广相比较,喷锚支护的设计理论却很落后,实际上仍然是采用经验类比的方法选择支护参数。鉴于这种状况,当前国内外有关部门都大力开展有关喷锚支护作用机制的试验与理论研究,试图提出有客观依据且简易可行的喷锚支护计算方法。由于地质条件复杂多变,材料性能不
With the development of the national economy and the increasing use of underground engineering in economic construction and national defense construction, the use of spray-anchor support as an economic and effective underground engineering support method has also grown. However, compared with the rapid promotion of spray-anchor support technology, the design theory of spray-anchor support is very backward. In fact, the support parameters are still selected by empirical analogy methods. In view of this situation, the current domestic and foreign authorities have vigorously carried out experimental and theoretical studies on the mechanism of the spray-anchor support, and attempted to propose a calculation method for the shot-anchor support with an objective basis and simplicity and feasibility. Due to complex and varied geological conditions, material properties are not