man digging method 人工开挖法
semi-circle ditch-digging method 半圆周挖沟法
holes-digging subarea method 挖孔式分区法
method of digging 施工方法
The paper proposed compute formula of digging pile panelling vertical cross section, introduced construction method and analysed economic benefit.
提出了挖孔桩护壁竖向截面积的计算公式，介绍了施工方法，分析了经济效益。
This paper presents a suporting method in digging between adjacent buildings, its operation and structural calculation, with a practical instance given.
简述在相邻建筑物间开挖的一种支护方法， 及其施工方法、结构计算等， 最后给出工程实例。
The paper researchs the principle of protective seam mining, hydraulic slotting method and executing-digging technology to avoid risk of coal-gas outburst, and its practices in coal mine.
通过分析近距离保护层开采、水力掏槽法及边抽边掘技术防治煤与瓦斯突出原理及实践应用，从而有利于煤与瓦斯突出矿井选择合理有效的防突技术。
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