相传蜀郡守李冰创建都江堰工程之后,遗留下来了治堰准则“深淘滩,低作堰”六字诀。明代正德年间水利佥事卢翊把“深淘淖,浅包鄢”改为“深淘滩,低作堰”六字诀大书于伏龙观大殿后的观澜亭上。深淘滩,指内江河段每年岁修清淤时,要淘到足够的深度,才能保证宝瓶口引进足够的水量,达到“稻田水足慰农心”。低作堰,指飞沙堰顶不宜筑得太高,以免影响飞沙堰泄洪排沙的效果,导水入宝瓶口时,又不致把过量洪水引入内江灌区。深淘滩要深到什么标准,低作堰要低到什么程度,古代人经过实践,确定了用“卧铁”“铜标”“标准台”作为淘滩、作堰的标志。卧铁。古代在飞沙堰对岸凤栖窝河床下埋石马作 According to legend Shu County, Li Bing created Dujiangyan project, the legacy of the rule weir Yan “deep beach, low weir,” the six tactic. During the Masanori Mastery in the Ming Dynasty, Lu Yi replaced the words “Shen Tao 淖, Shallow Bao Yan” with “Shen Tao Tan, Low Weir” in the Guanlan Pavilion behind the Fulong Guan Basilica. Deep scouring the beach, refers to the Neijiang River every year years of dredging, to Amoy enough depth, in order to ensure the introduction of enough water Aquarius mouth, “Paddy water to stimulate comfort”. Low as a weir, refers to the top of the weir weir should not be built too high, so as not to affect the effect of sand discharge weir sand, water diversion bottle mouth, they will not cause excessive flood into Neijiang Irrigation District. Shumutan deep to what standard, low as the weir to what extent, the ancient people through practice, identified with “lying iron”, “copper standard” “standard station” as a Tao Tan, as weir signs. Lying iron. Ancient sandstone in the weir on the other side of the weir nest under the sand