breaking cross section 中文意思是什麼
breaking cross section
解釋
坡裂橫斷面-
During the construction of a deep - embedded tunnel with long distance and large cross - section, only one tunneling method is hard to meet the construction requirement as the tunnel line is too long with varied embed depths, and furthermore, different classes of surrounding rocks with various strengths, breaking degrees are to be met therein
在長大深埋隧洞施工中,由於洞線長,涉及的圍巖種類繁多,巖石強度及破碎程度不同,且埋深不一,採用單一的施工方法可能很難滿足施工的需要。
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