Emergency water retaining soil dam for sudden environmental events in drainage basin

The utility model discloses an emergency water retaining earth dam for a drainage basin sudden environmental event, which comprises an earth dam main body, a drainage pipe, a pressing mechanism for enhancing the structural strength of the earth dam main body and a fixed pile, and is characterized in that the earth dam main body is formed by pouring concrete, and the drainage pipe penetrates through the earth dam main body and is arranged in the earth dam main body; guardrails for protecting pedestrians are symmetrically arranged at the top of the earth dam body, a base groove is dug in the bottom of the riverbed, the pressing mechanism is poured in the base groove and connected with the upstream face of the earth dam body, a plurality of pile grooves are dug in the bottom of the riverbed, and the fixing piles are poured in the pile grooves and connected with the bottom of the earth dam body. The structural strength of the retaining dam is greatly enhanced and potential safety hazards are reduced through the p