野外掌子面可见珍珠岩与膨润土、隐爆角砾岩、流纹岩共生。
The perlite is associated with bentonite, hydrothermal breccia, rhyolite in typical geological sections.
本文研究了卸载孔及向掌子面注水对煤巷掘进头岩石应力状态的影响。
The effect of stress-releasing hole and water injection to the face on rock stress state around gateway driving face has been studied in this paper.
研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。
The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied.
对主要施工方案进行优化，并选取超前大管幕、掌子面注浆、补偿注浆等辅助措施；
The more suitable excavation construction methods and auxiliary measures such as big steel pipes, face grouting reinforcement and compensation grouting are selected by various comparison analyses.
本文以隧道施工开发为背景，致力于研究图形图像处理和模式识别技术在隧道掌子面图像分析中的应用。
On the ground of tunnel development, this paper aims at the research of graph and image processing and its application in analyzing tunnel face images.
因此，测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。
So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule.
因此，测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。
So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule.
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