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喀斯特地质条件下爆破效果难以预测,安全事故等问题时常发生,四邻环境限制了爆破方案的选择,施工过程中采取的安全措施和方案也将发生变化。因此,利用熵权法和灰色关联方法分析不同环境下各指标对施工安全投入和预算的影响,根据地质条件采取不同的投入使爆破施工得以安全进行。根据不同环境的特点,从地点、临空面、起爆方式、推进方向、水文地质条件、网路连接、填塞质量等方面分析了不同环境下的综合指标,进而得出相应安全投入的相对大小,给爆破施工项目预算提供了一定依据。
The blasting effect under the karst geological conditions is unpredictable, accidents such as accidents occur frequently, the surrounding environment limits the choice of blasting schemes, and the safety measures and programs adopted in the construction process will also change. Therefore, the entropy method and gray relational method are used to analyze the impact of each index on the construction safety investment and budget under different environments. Different inputs are taken according to the geological conditions to make the blasting construction be carried out safely. According to the characteristics of different environments, the comprehensive indexes under different environments are analyzed from the aspects of location, temporary empty surface, initiation method, propulsion direction, hydrogeological condition, network connection and stuffing quality, and then the relative sizes of the corresponding safety inputs are obtained. Blasting construction project budget provides a basis.