Abstract: A system includes an unmanned vehicle (UV). A compliance unit receives sensor data from one or more sensors and compares the sensor data to a predetermined payload capacity threshold and a predetermined range capability threshold to determine compliance with a predetermined payload capacity and a predetermined range capability of the UV. The compliance unit generates a command to restrict the operation of the UV if the sensor data exceeds the predetermined payload capacity threshold and the predetermined range capability threshold of the UV.

Abstract: A system includes an unmanned vehicle (UV). A compliance unit receives sensor data from one or more sensors and compares the sensor data to a predetermined payload capacity threshold and a predetermined range capability threshold to determine compliance with a predetermined payload capacity and a predetermined range capability of the UV. The compliance unit generates a command to restrict the operation of the UV if the sensor data exceeds the predetermined payload capacity threshold and the predetermined range capability threshold of the UV.

Abstract: A roller compacted concrete (RCC) dam is formed from inverted T-shape face panels to produce a lower sloped profile and L-shape face panel to produce an upper vertical profile. The face panels have drain openings in their penetrating legs to communicate with drain fill lifts placed against the vertical rise of the face panels. RCC lifts are placed on the penetrating legs to lock the placement of these face panels. The drain openings provide terminal drainage for lift line seepage. The inverted T-shape face panel has both a protruding leg and a penetrating leg projecting into the RCC lift. The protruding leg is provided with a dowel for gripping and alignment that permits raising and lowering of the face panel and is received within a sleeve in the face panel therebelow.

Abstract: The process comprises excavating pits at the first and second ends of a buried section of old water main pipe that is to be replaced with new pipe. The exposed segments of pipe are broken up to provide access to the bore of the old pipe. A pipe splitter and a cylinder-actuated pulling unit are installed in the first pit. A string of rods is extended through the old pipe bore from the first pit to the second pit. A tool assembly of sequentially connected components is attached to the second end of the rod string. The tool assembly may comprise: means for centralizing the second end of the rod string in the second end of the old pipe section; a pull plate for bearing against the annular second end face of the old pipe section; a cylindrical plug for expanding the passageway extending between the pits; a rod member for extending through the bore of the new pipe section to be installed; and a second pull plate for bearing against the annular second end face of the new pipe.