The invention relates to the field of slope water interception and drainage, in particular to a slope crest intercepting
ditch structure based on an excavation
rock slope and a construction method thereof.The slope crest intercepting
ditch structure comprises structural steel bars and masonry bodies, and the structural steel bars are arranged on the slope crest at set intervals in the direction of the slope and perpendicular to the slope surface; the steel bars are connected with the slope surface steel bars and anchored into the slope surface concrete
surface layer in a grounding manner; the masonry body comprises a
brick masonry and sprayed concrete, the
brick masonry is formed by laying hollow bricks on structural steel bars, and the hollow bricks are filled with the sprayed concrete, so that the
brick masonry and the structural steel bars are connected into a whole. The
brick masonry formed by building the hollow bricks is constructed on the structural steel bars of the slope top, concrete is sprayed into the
brick masonry, the
brick masonry and the structural steel bars are connected into a whole to form the intercepting
ditch, the structure is simple, convenient and rapid to construct, grooves and pouring molds do not need to be manually excavated, large-scale
mechanical equipment is not needed for construction, and the structure has the advantages of being low in manufacturing cost, convenient to construct and the like. The requirement of construction on the width of a working face is low.