main haulage roadway

基本解释

Through analysis to weak coalbed and harmfulness to roadway, main haulage roadway and room supporting design and adaptability condition are discussed in weak coalbed.
通過對松軟煤層的性質及其對巷道的危害分析，探討了松軟煤層中主要運輸巷道及硐室支護設計形式及適用條件。
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.
提出在搆造應力場中，開採運輸巷道上方的煤躰使巷道産生拉伸形變是巷道破壞的主要根源。
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.
介紹了採用控制爆破技術施工位於井底車場及主要運輸大巷的信集閉峒室，條件複襍，巖性變化大，要求安全性高。