Through analysis to weak coalbed and harmfulness to roadway, main haulage roadway and room supporting design and adaptability condition are discussed in weak coalbed.
通过对松软煤层的性质及其对巷道的危害分析，探讨了松软煤层中主要运输巷道及硐室支护设计形式及适用条件。
This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.
介绍了采用控制爆破技术施工位于井底车场及主要运输大巷的信集闭峒室，条件复杂，岩性变化大，要求安全性高。
According to the analysis of haulage accident and the construction of accident tree, the main cause of accident is found out.
通过对运输事故的分析，构造地下矿运输事故的事故树，找出发生事故的主要因素。
The monitoring system of a coal machine with hydraulic haulage is discussed in the paper The main monitored parameters of coal machine are given based on the practical experience.
对液压牵引采煤机工况监测系统进行了讨论。根据实际经验给出了采煤机的主要应监测参数。
The excavation technique consists of main operations including breaking, loading, haulage and support, and auxiliary work including ventilation, laying the track, digging ditches and laying pipes etc.
掘进工艺包括主要作业和辅助作业，其中主要作业包括破岩、装岩、运输、支护，辅助作业包括通风、铺设轨道、挖掘排水沟、铺设管线等等。
The conclusion was that the inefficient of the PE powder pneumatic haulage blower, parallel connection with another small one was the main counter-measure.
得出聚乙烯粉末输送风机跳车是因其效率降低的结论，制定出并用一台小风机的对策。
Research on continuous ore drawing and haulage equipment for underground metal mines has widely been done in main foreign countries with mining industry.
国外主要矿业国家对地下金属矿山连续出矿运矿设备进行了深入的研究。
The paper analyzes the dynamic specific property of the main oil line within the hydraulic system in the haulage unit of shearer with the fluid network theory.
本文利用流体网络理论分析了采煤机牵引部液压系统主油路的动特性问题。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
提出在构造应力场中，开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
提出在构造应力场中，开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
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