水力吸泥机在《桥涵》和《墩台和基础》书中已有粗略介绍。我工地学习了航道部门在航道疏浚中的先进经验,在我省惠阳东江大桥施工中首次试制成水力射流泵,应用于沉井施工的筑岛及下沉工作。我们通过初次实践,认为水力射流泵对中粗砂层吸砂效果是很好的,它具有设备简单、动力小、效率高等优点,是一种值得推广的施工方法。 Hydraulic suction mud machine in the “bridge culvert” and “pier and foundation” book has a rough introduction. I learned the advanced experience of waterway department in waterway dredging. In the construction of Huiyang Dongjiang Bridge in our province, I first made a hydraulic jet pump for the construction of sunk well and the sinking work. Through the initial practice, we think that the water jet pump is very good for sand absorption in medium and coarse sand layer. It has the advantages of simple equipment, low power and high efficiency. It is a construction method worthy of promotion.