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在天津干线保定市1段沿线分布有众多的砖厂取土坑,在线路优化调整中,尽量通过线路调整避开这些取土坑。文章阐述了土坑回填的技术要点。
A large number of brick mills are found in the first block of the Tianjin Main Line Baoding. In line optimization and adjustment, try to avoid these borrow pit by line adjustment. The article expounds the technical points of backfilling of pit.