Abstract: Provided is a construction machine in which travel operability is not impaired when a combined operation is performed in which a single-rod hydraulic cylinder is driven during a travel operation. A hydraulic excavator includes a controller that controls the delivery direction and delivery flow rate of a closed-circuit pump, opens and closes a travel switching valve and an assist switching valve, and controls the delivery flow rate of the open-circuit pump, according to a travel operation lever and a work operation lever. The controller holds the assist switching valve in a closed position irrespective of whether or not the work operation lever is operated in a case where the travel operation lever is operated.

Abstract: A support member is fixed to an outer circumferential surface of an exhaust pipe with a bracket. The bracket comprises a main body and a flange portion. The main body has a cylindrical shape, whose diameter increases gradually. The flange portion is arranged so as to extend outward from a large-diameter end, which is an end having a larger diameter in the main body. The flange portion is joined to the outer circumferential surface of the exhaust pipe. The support member comprises a rod-like end, which is an end in a rod-like shape. The support member is joined to a rim portion of an opening of a small-diameter end, which is one end having a smaller diameter in the main body, such that the rod-like end is inserted into the opening.