Method of forming concrete pile in situ
阅读：314发布：2023-12-20
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1. A METHOD FOR THE PRODUCTION OF CONCRETE PILES IN SITU COMPRISING THE STEPS OF FILLING AT LEAST THE LOWER END OF AN UPRIGHT TUBE OPEN AT BOTH ENDS WITH CONCRETE WHILE THE LOWER END OF THE TUBE ENGAGAGES THE GROUND FOR FORMING A CONCRETE PLUG IN SAID LOWER END; ANCHORING A PRESSURE DEVICE IN THE INTERIOR OF THE TUBE IN ENGGEMENT WITH THE UPPER END OF THE CONCRETE THEREIN; IMPARTING IMPACTS ONTO THE UPPER END OF THE TUBE FOR DRIVING THE LOWER END OF THE TUBE WITH THE CONCRETE PLUG THEREIN INTO THE GROUND WHILE PREVENTING WITH SAID ANCHORED PRESSURE DEVICE THE PLUG FROM MOVING UPWARDLY IN THE TUBE; EXERTING BY MEANS OF SAID ANCHORED PRESSURE DEVICE A DOWNWARDLY DIRECTED PRESSURE ONTO THE CONCRETE PLUG TO MOVE THE LATTER DOWNWARDLY WITH RESPECT TO THE TUBE WHILE SIMULTANEOUSLY TRANSMITTING THROUGH SAID ANCHORED PRESSURE DEVICE THE COUNTERPRESSURE CREATED BY SAID PRESSURE TO THE TUBE TO RAISE THE LATTER SO THAT PART OF SAID PLUG WILL BE LOCATED IN THE GROUND BELOW THE LOWER OPEN END OF THE TUBE; AND DRIVING THE TUBE FURTHER INTO THE GROUND BY IMPARTING IMPACTS ONTO THE UPPER END THEREOF WHILE PREVENTING WITH SAID ANCHORED PRESSURE DEVICE THE REMAINING PART OF THE PLUG IN THE TUBE TO MOVE UPWARDLY WITH RESPECT THERETO TO COMPRESS THE PART OF THE PLUG LOCATED BELOW THE LOWER END OF THE TUBE IN AXIAL DIRECTION AND TO CAUSE IT TO EXPAND LATERALLY BEYOND THE TUBE.
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