heading face

基本解释

Mine local ventilation facilities failure is one of the main reason which leads to the accident of gas explosions in heading face.
矿井局部通风设备故障是导致掘进工作面较易发生瓦斯爆炸事故的主要理由之一。
According to hazard theory and principle of selecting assessment index, the paper constructs assessment index system of gas explosion in heading face.
根据危险源理论和评价指标选择原则，建立了掘进面瓦斯爆炸评价指标体系。
The practice demonstrates that the prediction to adverse geologic condition in front of the heading face by boring radar and BEAM electric method, especially to water-holding condition, is satisfied.
实践表明，采用钻孔雷达和BEAM电法探测技术对隧道掌子面前方的不良地质情况，尤其是含水情况具有较好的预测结果。

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掘进工作面
掘进面
We utilize safety assessment method of grey cluster to assess concrete heading face. Assessment result is regarded as train sample of BP neural network.
运用灰色关联度方法，对具体掘进面瓦斯爆炸三类危险源分别进行了相对危险程度评价，实现了单因素指标与标准序列的评价，为辨识不安全因素提供了依据；利用灰色聚类安全评价方法对具体掘进面进行了综合安全评价，其结果同时作为BP神经网络的训练样本。
巷道工祖