Compaction management system

A compaction management system for managing a compaction state of a compaction target ground, the compaction management system comprising:

• a work machine including a machine body, a work device attached to the machine body capably of vertically rotational movement, a work actuator capable of rotationally moving the work device hydraulically, a machine body posture detector that detects a machine body posture which is a posture of the machine body, a work device posture detector that detects a work device posture which is a posture of the work device, a working pressure detector that detects a working pressure of the work actuator, and a dimension storage device that stores a work device dimension which is a dimension of the work device;
• a controller provided in the work machine;
• a display device;
• and
• a storage device that stores information about a design surface of the compaction target ground and information about a tolerance given to the design surface,
• wherein the controller includes:
• a compaction-pressing-position calculation unit that calculates a compaction pressing position which is a position at which the work device is pressed against the compaction target ground, based on the machine body posture detected by the machine body posture detector, the work device posture detected by the work device posture detector, and the work device dimension stored in the dimension storage device, when the work device is pressed against the compaction target ground;
• a compaction-pressing-force calculation unit that calculates a compaction pressing force applied to the compaction target ground, based on the machine body posture detected by the machine body posture detector, the work device posture detected by the work device posture detector, the working pressure detected by the working pressure detector, and the work device dimension stored in the dimension storage device, when the work device is pressed against the compaction target ground;
• a compaction-pressing-record production unit that produces a plurality of compaction pressing records, each of which includes a combination of the compaction pressing position calculated by the compaction-pressing-position calculation unit and the compaction pressing force calculated by the compaction-pressing-force calculation unit and associated with the compaction pressing position;
• a storage control unit that makes the storage device store the plurality of compaction pressing records produced by the compaction-pressing-record production unit;
• a final-compaction-pressing-record selection unit that selects a selection target compaction pressing record including the largest compaction pressing force among a plurality of selection target compaction pressing records, which are included in the plurality of compaction pressing records stored in the storage device and produced with respect to the same compaction pressing position, as a final compaction pressing record with respect to the compaction pressing position,
• a display control unit that makes the display device display the compaction pressing position and the compaction pressing force that are included in the final compaction pressing record selected by the final-compaction-pressing-record selection unit, the displayed compaction pressing position and the displayed compaction force allowing a worker who operates the work machine to visually grasp a compaction state of the compaction target ground,
• wherein the compaction management system is configured to produce the compaction pressing record on condition that the compaction pressing position calculated by the compaction-pressing-position calculation unit is within the tolerance of the design surface, and configured to suspend the production of the compaction pressing record when the calculated position of the work device is deviated from the tolerance of the design surface, and
• wherein the final-compaction-pressing-record selection unit is configured to select the selection target compaction pressing record including the largest compaction pressing force among the plurality of selection target compaction pressing records, which are produced with respect to the same compaction pressing position within the tolerance of the design surface and included in the plurality of compaction pressing records stored in the storage device, as the final compaction pressing record with respect to the compaction pressing position.