1．蟹池构造要合理蟹池面积一般为0．2公顷左右，长方形，池底要开挖“目”形沟，宽1米，深0．3米。进出水口要设在土池相对应的两侧，各安装一个用微孔铁丝网做成的凸形防逃栅栏。栅栏的凸面朝上油中。防逃墙用砖砌，墙脚0．2米，地面墙高08米，墙顶“飞檐”，水泥砂浆刮内面 1. Crab pool structure should be reasonable Crab pool area is generally about 0.2 hectares, rectangular, bottom to dig “head” shaped ditch, 1 meter wide and 0.3 meters deep. Into the outlet to be located on both sides of the corresponding soil, each with a hole made of perforated metal anti-fleeing fence. The convexity of the fence faces up in the oil. Anti-evasion wall brick, wall foot 0.2 meters, 08 meters high ground wall, wall top “cornice”, scraping the inner surface of cement mortar