Mine roadway quality inspection and acceptance

1. Sub-item, divisional engineering acceptance records, visual inspection quality inspection records, and main function project sampling records.

2. Concealed project acceptance records, materials and test block test reports.
3. Raw materials such as cement (including additives, admixtures), steel bars, anchors (including prestressed anchors), supports (including shrinkable brackets), auxiliary materials such as anchors, and materials and specifications of supporting members Information and spot checks.
4. Roadway specification size inspection data, naked roadway specifications and slope inspection data, and gutter specification inspection data.
5. Quality control data for cast-in-place concrete and reinforced concrete, staggered bars, prestressed anchors (anchor cables), shotcrete and supports.
6. Roadway plan and roadway measurement record results.

        Second, the important content of data review and quality inspection during the acceptance of roadway engineering

1. Review of the relevant quality content of cast-in-place concrete and block support; the cast-in-place concrete structure size of cast-in-place concrete and reinforced concrete support, shotcrete support, bracket support, etc. There should be dimensional deviations that affect structural performance and safety (see 1G420075 for details).
2. Review of bolt tightening torque, prestressing of prestressed anchor (anchor cable) after locking, anchor pullout force, concrete strength, and shotcrete strength data.
3. Thickness and deviation of cast-in-place concrete structure, concrete strength inspection (see 1G420075).
4. The total leakage after the completion of the underground diverticulum should meet the requirements of the regulations, see Table 1G420076.

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