对钻孔精确度,孔径,孔数量,孔位与铜箔表面确认,是否有相应的检验程序?
Is there a general inspection procedure with Drilling accuracy Hole size Hole quantity Hole location and Copper surface appearance defined?
是否在开始生产国产前,对钻孔程序进行检验?
Is the drilling program checked prior to being released for production?
突出煤层卸压后用钻孔瓦斯涌出初速度进行工作面预测和效果检验时经常超过突出临界值,造成开采保护层后煤层突出危险性更大的现象。
The main factors affecting the initial speed are studied and the causes of initial speed from borehole gas emission often exceeding limit theoretically explained.
钻孔灌注桩目前在施工中的使用已相当普及,但因属隐蔽工程,成桩后质量检验比较困难。
The using of bore bottling pile is quite popular in construction, but as a concealed work, the quality check after its completion is more difficult.
消突效果检验后进行煤巷掘进,掘进期间通过对突出危险性指标和瓦斯涌出参数的分析,验证穿层钻孔区域预抽瓦斯消突技术的有效性;
The outburst risk index and gas gush feature are analysed during roadway progress. The result proves that the effectiveness of zonal gas pre-drainage by cross-measure boreholes.
采用矿用钻孔窥视仪并配合电磁辐射法和钻屑法对爆破进行了效果检验。
The blasting effect was checking using sight instrument, electromagnetic emission (EME) technique and drilling sludge methods.
通过实践应用自平衡试桩法新技术,对大直径钻孔灌注桩承载能力进行检验,为解决施工中出现的类似问题提供经验。
After testing pile and determining the load bearing capacity of single pile, the single piling method is adopted for construction.
0级大地震震中周围16个台站的四分量钻孔应变观测资料,对地震前驱波进行检验。
0 earthquake are statistically tested by use of the observed strain data with the 4-component borehole strainmeters at 16 stations around the epicenter.
残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证,均证明按该方法布置的预抽钻孔,消突效果有效。
The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.
残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证,均证明按该方法布置的预抽钻孔,消突效果有效。
The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.
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