Circulation deslagging method during house construction
A positive circulation, housing technology, applied in drilling equipment and methods, drilling equipment, earthwork drilling, etc., can solve the problems of equipment stuck, low waste discharge efficiency, affecting construction efficiency, etc.
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[0012] In the positive circulation slag discharge method in house construction, the mud pump is used to press the mud or clear water to the water supply pipe in the center of the drilling rig or the bifurcated pipe on the side wall of the drill pipe to the drill bit, and the drill bit is slowly released to break through the soil and drill. When the drill reaches the design elevation, The motor stops running, the mud is still working, and the mud is discharged from the hole until the mud density in the hole reaches about 1.1 to 1.5, then the pump is stopped to lift the drilling rig.
[0013] The invention can quickly discharge the waste slag generated during piling without affecting the construction efficiency.
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