Method for backfilling of tunnel construction through TBM method and equipment for method
A technology for tunnels and tunnels, which is applied in the field of backfilling methods and equipment for TBM tunnel or tunnel construction, which can solve problems such as large coefficient of variation, damaged cement slurry mix ratio, bad geology, etc., and achieve strong segregation resistance and strong stop Water blocking ability, the effect of resisting water erosion
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[0069] The present invention will be described in detail below in conjunction with specific embodiments.
[0070] The TBM method tunnel or tunnel construction backfill method involved in the present invention makes full use of the technical advantages of mortar and fine-stone concrete backfill, and is within 360° of the entire cavity section between the outer wall of the TBM prefabricated lining structure tube segment and the surrounding rock wall , Replace the original soy gravel grouting backfill in whole or in part to overcome the shortcomings of pure soy gravel grouting backfill. It is realized by the following steps:
[0071] The full cavity section between the outer wall of the TBM prefabricated lining structure and the surrounding rock wall is backfilled within a 360° range, and the following two improvements can be adopted:
[0072] Option 1: Backfill with mortar at the bottom arch, backfill with gravel on both sides, and backfill with mixed mortar at the top arch;
[0073] O...
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