borehole face 中文意思是什麼
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Based on seismic wave method, borehole acoustic method and indoor rock mechanics test, the dynamic and static parameters of the foundation rock for the toe slab of the concrete face rockfill dam for shuibuya hydropower station are tested, and then the relationship among the rock quality, dynamic parameter and static parameter are established with the parameters obtained from the test, furthermore, the classification and the quality evaluation are made as well
摘要採用地震波法、鉆孔聲波法以及室內巖石力學試驗法，對水布埡水電站面板壩趾板建基巖體進行了動、靜參數測試，並根據所獲的參數建立了巖體質量、巖體動力學和靜力學參數三者之間的相關關系，對工程巖體進行了質量分級和質量評價。 -
The latest constructing machine and the newest technology were adopted to ensure that the borehole is perpendicular to the rock face of roof and that the depth of borehole and the torsional moment of the anchoring bolt meet the design requirement
採用最新錨桿施工機具及工藝，保證鉆孔垂直於頂板巖面，孔深及錨桿扭矩滿足新型機械錨桿的設計要求。 -
Length determine and installation of borehole orifice - pipe for grouting in the excavation face of shaft and drift
井巷工作面注漿孔口管的長度確定與埋設 -
According to the underground pressure distribution rule and the separation control function of drainage borehole, the shallow hole drainage technology is studied and tested by using the characteristic that the gas permeability may have an obvious increase after mining in front of the working face, obtaining some useful parameters, showing that the technology is feasible and credible
根據礦山壓力分佈規律和抽放鉆孔的隔斷控製作用，並利用工作面前方煤體受采動卸壓后透氣性顯著提高這一特性，研究並試驗了卻壓區淺孔抽放技術，獲得了該抽放技術的工藝參數。 -
Optimization on roof strike borehole parameters of gently inclined and high cutting fully mechanized longwall mining face
大采高綜采工作面頂板走向鉆孔參數的優化
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