The entries in complicated geological conditions are categorized and discribed, whose bolt and mesh support technique is analysed, some reazonable measures are put forward.

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。

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Being an efficient and economical cavern-support technique, pre-stressed bolt support has been widely used in different underground projects.

预应力锚杆支护作为一种高效、经济的硐室加固技术，已日益广泛地应用于各类地下工程加固中。

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