Testing device for large strains on pile foundations

Abstract

Testing device for large strains on pile foundations, characterized in that it comprises: a main body assembly (1) comprising a support frame (11), wherein four guide plates (14) are attached to an inner wall of the support frame (11), wherein a counterweight (15) slides between the four guide plates (14), wherein a stop seat (16) is attached by bolts on one side of the guide plate (14), wherein a winch (17) is attached to a top of the support frame (11), wherein a winding rope (18) is wound on the winch (17), and wherein a positioning ring (19) is attached to the support frame (11);and a connecting assembly (2) arranged at one end of the winding rope (18) and comprising a connecting element (21), wherein the connecting element (21) comprises a support disc (211) attached to the end of the winding rope (18), wherein a pull rope (212) is attached to a bottom side of the support disc (211), wherein a connecting disc (213) is attached to the other end of the pull rope (212), wherein a connecting seat (214) is attached to a bottom side of the connecting disc (213), wherein a plug-in block (215) slides in the connecting seat (214), wherein an engagement seat (216) is attached to a top side of the counterweight (15), wherein a chamfer (216-1) and a connecting groove (216-2) are formed on an inner wall of the engaging seat (216), wherein the plug-in block (215) can be inserted into the connecting groove (216-2).