The invention discloses a
water channel flooding leakage detection device and a construction
repair method, and belongs to the technical field of leakage repair construction. Comprising a detection leaking stoppage vehicle, the detection leaking stoppage vehicle is connected with a charging
barrel and a feeding
pipe, and the charging
barrel is communicated with the feeding
pipe; a grouting head is further included, a connecting cylinder is fixedly connected to the top of the grouting head, a first air bag is connected to the connecting cylinder, and a second air bag is fixedly connected to the grouting head; the material conveying
pipe is fixedly connected into the connecting cylinder, and the material conveying pipe communicates with the grouting head; the shooting device is fixedly connected to the grouting head; the
exhaust pipe is fixedly connected to the grouting head; according to the device, the
humidity in the
drill hole is detected in a layered manner, and the specific
humidity condition in the
drill hole can be analyzed and judged by comparing and analyzing the
humidity signal, so that a worker can conveniently infiltrate repairing agents with different concentrations, and the
leakage rate of the
drill hole is improved by infiltrating the repairing agents with different concentrations into the drill holes at different leakage points. The plugging effect of the repairing agent on the leakage position in the
drill hole can be guaranteed, and the cost is effectively controlled.