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。

Through analysis to weak coalbed and harmfulness to roadway, main haulage roadway and room supporting design and adaptability condition are discussed in weak coalbed.

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DS J系列可伸缩带式输送机主要用于综合机械化采煤工作面的顺槽运输，也可用于一般采煤工作面的顺槽运输和巷道掘进运输系统。

DSJ series extensible belt conveyor is used to fully mechanized coal mining working face road transportation, and common coal face road transportation and drifting transportation system.

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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.

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