Abstract
Construction of highway tunnels affect the original hydrogeological environment in tunnel zone, may even cause the unbalance of ecological environment, study on the influence on ecology environment of tunnels construction is therefore of great significance by adopting effective evaluation measures. Problem commonly encountered with comprehensive assessment of impact on environment is as follows, the multiple indexes, the narrow scope of application, the quantification of index with high difficult. With the support of Erlang Moutain Tunnel, six factors associated with assessment of impact on ecological environmental during tunnel construction are weighted according to the characteristic of tunnel. Determine both the subordinated function and weight of factors on the basis of fuzzy hierarchy estimation, evaluation systems on ecology environment of construction of extra-long highway tunnels in mountain area are established. Through confirmatory analysis of Erlang Moutain Tunnel, the evaluation systems obtained has good application and operability, which may provide reference to similar tunnels or underground engineering.
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