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近年来,养鱼业迅速发展。但是,千家万户开挖小型鱼塘多采用肩挑的方法,费工费时造价高,很不合算。经不少专业户实践,采用杠杆法开挖小型鱼塘或清理鱼塘污泥,是一种简单易行的开塘技术,可以达到省工省时、提高开挖效率的目的。采用杠杆法开挖鱼塘,最适宜于直径10米以内的小型鱼塘。需要备好如下材料:两根木杆或空心钢管,一根作支轴,长3米左右,一根作横杆,长4至7米或根据鱼塘大小确定长度;一根较粗的棕绳或铁丝,5米左右;一只铁钩,用来悬挂装土工具;数件挖土工具和装土工具、包括锄头、铁锹、簸箕、木桶。安装杠杆的方法是:1.在鱼塘上,挖一个1米深的坑,将支轴竖入坑中,然后四周填满泥土和石头,用力压紧。2.在支轴的顶端穿一个孔,将绳子或铁丝穿过,下面系着横杆。系着部位称为支点,支点两头
In recent years, the fish industry has developed rapidly. However, tens of thousands of households use small-sized fish ponds to use shoulder-picking methods. It is not cost-effective to spend a lot of time and money. After many professional households practice, using the lever method to excavate small fish ponds or clean up sludge from fish ponds is a simple and easy technique for opening ponds, which can save time and labor and increase excavation efficiency. The use of a lever method to excavate fish ponds is most suitable for small fish ponds within 10 meters in diameter. Need to prepare the following materials: two wooden poles or hollow steel tubes, one for the fulcrum, about 3 meters long, one for the bar, 4 to 7 meters long or determine the length according to the size of the pond; a thicker brown rope Or iron wire, about 5 meters; a hook, used to hang loading tools; a number of excavation tools and loading tools, including hammers, shovels, rakes, barrels. The method of installing the levers is: 1. Dig a 1-meter-deep pit on the fish pond, erect the fulcrum into the pit, and then fill it with dirt and stones and press hard. 2. Put a hole in the top of the fulcrum, pass the rope or wire, and tie the bar below. The tying point is called the fulcrum, and the fulcrum is two.