Rapid method for evaluating integrity of rock-soil mass of tunnel face of roadheader on site

The invention discloses a rapid method for evaluating the integrity of rock-soil mass of a tunnel face of a roadheader on site. The rapid method mainly comprises the steps of measuring and calculatingthe average rock mass length of a rock core, boundary number, crushing length contribution ratio, crushing quantity contribution ratio and rock core incompleteness, and obtaining a full-section incompleteness coefficient in combination with a general formula of the area ratio of stratums in the tunnel face; and the rock core incompleteness can distinguish and bound the rock core completeness withthe same rock block length and different rock core overall segment numbers, the defects of RQD (rock quality designation) are overcome, and the full-section incompleteness coefficient based on the rock core incompleteness can be used for evaluating the overall crushing degree of the full-section tunneling construction tunnel face. The method can be applied to a construction site, all indexes andcalculation parameters can