我队广大职工在上级党委领导下,在与地下水的斗争中,摸索出一套在竖井施工中较为有效的水力喷射扬水器与吊泵串联排水法。经过实践证明,这种排水方法具有操作简单,使用可靠,不易损坏,能自动调整排水量等一系列优点,尤其在表土层施工中更显出它的优越性。(一)结构特点水力喷射扬水器与吊泵串联排水法,就是 Under the leadership of the Party committees at the higher level, a large number of workers and staff members of our team worked out a series of drainage and water pumping methods that are more effective in the shaft construction during the struggle against groundwater. Practice has proved that this drainage method has the advantages of simple operation, reliable use, easy to damage, can automatically adjust the displacement and a series of advantages, especially in the topsoil construction even more shows its superiority. (A) the structural characteristics of hydraulic jet pumping device and hanging pump series drainage method, that is