The invention also provides a method for measuring the thickness of sinking slag on the hole bottom of the bored pile.
本发明还提供一种钻孔桩孔底沉渣厚度测量方法。
The results show that the test error of sample A with large angle coefficient of hole bottom is under 5%, and will become smaller with the increase of furnace temperature;
结果表明，孔底角度系数较大的试样A的检测误差<5%，并且随着炉膛温度的提高，其检测精度也随之提高；
In this paper the relation between the hole diameter and the pile thickness of the jet on the hole bottom for a jet penetrating or drilling process is theoretically examined.
本文在理论上探讨了射流在侵彻或钻孔过程中，孔径和射流在孔底的堆积厚度之间的关系。
The paper stated the water inrush model of shearing failure at the karst sink hole bottom in North China coal field and analyzed the water inrush mechanism of the karst sink hole.
从论述华北型煤田岩溶陷落柱顶底部剪切破坏突水模式及判据入手，分析了井下溶陷落柱突水机理。
The tool can objectively measure the thickness of sinking slag on the hole bottom of the bored pile without the need of the subjective determination of engineers based on experience and hand feeling.
本发明可以对钻孔桩孔底沉渣厚度进行客观的测量判断，而不需靠工程师的经验和手感进行主观判断。
Pictured in October, the foreboding entrance to Mortimer's Hole (bottom center), another cave passage beneath Nottingham Castle, beckons downhill from the palace itself.
照片摄于十月份，这是通向莫蒂默洞穴的正面入口(图片下方中部)，诺丁汉城堡的另一个地下洞穴通道，从宫殿向下延伸。
The difference between action mechanism of hole-bottom priming and hole-mouth priming was stated. The field tests for hole-bottom priming were done.
对孔底起爆和孔口起爆的作用机理作了对比分析，并对孔底起爆技术进行了现场爆破试验。
The practical application has proven that hole-bottom initiating technique can achieve better technical results and economic benefits.
现场的应用实践证明，孔底起爆技术可以获得良好的经济技术效果。
The practical application has proven that hole-bottom initiating technique can achieve better technical results and economic benefits.
现场的应用实践证明，孔底起爆技术可以获得良好的经济技术效果。
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