The reliability indexes of tunnel structure in site were computed and analyzed.
计算分析了现场隧道结构的可靠指标。
The reliability indexes are increased if the negative correlation among parameters is considered.
考虑土性参数的负相关会提高可靠指标；
The reliability indexes are reduced or increased if the positive correlation among parameters is considered.
考虑土性参数的正相关，可能降低也可能提高可靠指标。
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