渠系水利工程枢纽工程基础施工,通常采用大开挖施工方案,这样不仅工程量大、工期长、耗资多,而且在遇到地下水位高、淤泥、流砂,卵石等复杂的地质条件时,施工难度加大.1988年在位于穆棱河下游的富密渠首的基础施工中,我们利用喷射泵技术进行沉箱基础施工,获得了成功,大大提高了工效,节省机械及人力80%以上,降低造价50%,缩短了施工期. Drainage engineering is the basic construction of hydraulic engineering hub project, usually using large excavation construction program, so not only the large amount of construction, long duration, costly, and in the face of high groundwater levels, silt, quicksand, pebbles and other complex geological conditions, the construction In 1988, at the foundation construction of the Fuqu Canal headwaters located at the lower reaches of the Muling River, we succeeded in using the jet pump technology for caisson foundation construction, greatly improving work efficiency, saving more than 80% of machinery and manpower, and reducing Cost 50%, shortening the construction period.