研究结果：施工方案中提出了大直径超前管幕支护措施，用以控制地层变位。
Research results:The support measures in advance were proposed in construction scheme for large-diameter advanced tubal curtain in order to control the displacement of stratum.
对复杂地质条件下的煤巷进行了分类，并对复杂地质条件下的煤巷锚网支护技术进行了研究和分析，提出了合理的有效措施。
The entries in complicated geological conditions are categorized and discribed, whose bolt and mesh support technique is analysed, some reazonable measures are put forward.
在本次试验研究成果的基础之上，提出了几条降低爆破振动对初期支护影响的具体措施。
Based on the research result of this test, we pointed out some specific measures, which reduced the impacts of blasting vibration velocity on the primary support.
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