Arranging structure of drill jambo of adjusting periphery holes to control overexcavation and construction method

The invention provides an arranging structure of a drill jambo of adjusting periphery holes to control overexcavation. The arranging structure comprises overexcavation limiting periphery holes distributed in a tunnel excavation design contour line, wherein the tunnel excavation design contour line is arranged on a tunnel face and comprises an outer contour line and an inner side periphery hole contour line; the outer contour line and the inner side periphery hole contour line are arc-shaped contours along a tunnel; the overexcavation limiting periphery holes comprise outer side periphery holesand inner side periphery holes; and the outer side periphery holes are uniformly distributed along the outer contour line and the inner side periphery holes are uniformly distributed along the innerside periphery hole contour line. The arranging structure not only improves the tunnel construction progress, but also is relatively simple in construction method, controls a tunnel overexcavation problem and solves the proble