The isochromatic fringes graphs of smooth blasting and cutting seam blasting of pipe protecting borehole wall were obtained upon dynamic photo-elasticity experiments on both kinds of blasting.
进行了光面护壁爆破和切缝护壁爆破技术的动态光弹性试验，获得了光面护壁爆破和切缝护壁爆破过程的等差条纹图。
The technology problems of blasthole depth, cutting blasting, smooth wall blasting, and directional blasting is discussed.
文章对炮眼深度、掏槽爆破、光面爆破、定向爆破等技术问题进行了探讨。
Smooth blasting is an advanced technique which makes the new wall flat and undamaged and important to the fast excavation in rock tunnel, which affects the quality and driving speed of tunnel.
光面爆破是一种使爆出的新壁面保持平整而不受明显破坏的爆破技术，是岩巷快速掘进工艺的重要环节，它严格影响着巷道的质量和成巷速度。
One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.
采场切割井用中深孔一次爆破技术，采场周边及上盘则采用光面爆破技术，确保采场稳定。
Fracture control blasting, a new perimeter control technique, is an alternative to pre-splitting or smooth wall blasting which can be used to achieve better perimeter control results.
断裂控制爆破是一种新的周界控制爆破方法，用它取代预裂和光面爆破，可以获得更好的周界控制效果。
This paper discusses the definition of joint support and smooth blasting parameters and the management of wall rock and support structure deformations.
对联合支护的参数、光面爆破的参数确定，围岩和支护结构变形的管理进行了探讨。
Mechanism of smooth borehole wall protection blasting and calculation method of the charge are analyzed in this paper.
分析了光面护壁爆破的机理和装药量的计算方法。
Dynamic photo elasticity experiment is conducted, and the isochromatic fringes graphs in the process of smooth blasting of pipe protecting borehole wall is obtained.
进行了光面护壁爆破和切缝护壁爆破技术的动态光弹性试验，获得了光面护壁爆破和切缝护壁爆破过程的等差条纹图。
The shear stress on smooth blasting of pipe protecting borehole wall between free face and protecting face reaches as high as 3.
进行了光面护壁爆破和切缝护壁爆破技术的动态光弹性试验，获得了光面护壁爆破和切缝护壁爆破过程的等差条纹图。
The shear stress on smooth blasting of pipe protecting borehole wall between free face and protecting face reaches as high as 3.
进行了光面护壁爆破和切缝护壁爆破技术的动态光弹性试验，获得了光面护壁爆破和切缝护壁爆破过程的等差条纹图。
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