A kind of method quickly constructing fire dam

A kind of method quickly constructing fire dam

  • CN 106,121,722 A
  • Filed: 06/25/2016
  • Published: 11/16/2016
  • Est. Priority Date: 06/25/2016
  • Status: Active Application
First Claim
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1. the method quickly constructing fire dam, it is characterised in that employing following steps:

  • 1) according to treating that closed roadway section size determines the specification of filling bag, the most airtight for ensureing, filling bag is at body of wall heightWith the surplus capacity that width need to leave 300mm;

    2) quickly position filling position according to fire dam position, then tunnel is helped the supporting in the range of portion'"'"'s thickness of wall body wipe out;

    3) cleaning float coal, lays filling bag and bar-mat reinforcement, and filling bag stretches into treats closed roadway side portion 200mm;

    Filling bag fills simultaneouslyGas makes its molding;

    4) filling bag both sides add bar-mat reinforcement auxiliary formwork erection with hydraulic prop and waste and old steel pipe respectively;

    5) Double-liquid mud-injection pump pumping high-water material serosity is opened to filling bag, it is achieved the most backfilled enclosed;

    6) utilize the grout outlet pressure of filling pump during filling, filling bag is heaved and is adequately exposed to face roof coal and rock beds;

    SlurryAfter liquid touches top board, filling to be continued, until the grout outlet pressure of filling pump is not less than 1MPa, serosity is adequately exposed to workFace top board coal and rock beds, it is achieved the most airtight.

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