Ecological wetland dam leakage blocking system based on passive self-inspection technology and construction method thereof

The invention relates to an ecological wetland dam leakage blocking system based on a passive self-inspection technology and a construction method thereof. A reaction pile arranged in the length direction of the dam crest road is arranged in at least one of the clay core wall and the dam foundation impermeable layer and comprises a first pile body formed by bionic self-healing cement mortar in a cast-in-place mode and a reaction ball pre-buried in the first pile body, and the reaction ball is eccentrically arranged on the upstream side of the first pile body and comprises a ball shell and a reaction opening formed in the upstream side of the ball shell. A pressure triggering mechanism which is opened when the external pressure of the reaction ball is smaller than a set value is mounted on the reaction opening, and the reaction ball is filled with a liquid delayed coagulation adhesive and/or a liquid delayed coagulation doped water plugging material. The pre-buried reaction ball is used as a leakage sensing el