Carbon dioxide explosion silt squeezing and stone filling construction equipment and construction method

According to the construction equipment and the construction method, a carbon dioxide excitation pipe of the construction equipment is installed in a carbon dioxide blasting pipe, the carbon dioxide blasting pipe is filled with liquid carbon dioxide, the filled carbon dioxide blasting pipe is installed at a proper position in embankment head silt of silt squeezing and stone filling, and a power source is connected for electrification; the carbon dioxide excitation pipe is ignited, carbon dioxide is excited and gasified to generate high-pressure carbon dioxide gas, an explosion cavity is formed, sludge is extruded out, thrown and filled rocks slide into the carbon dioxide extruded cavity, meanwhile, the filled rocks are further compacted, the steps of riprapping and silt extrusion are repeated, and the rocks are pushed forwards; and meanwhile, lateral riprapping-silt squeezing is conducted on the position with the insufficient width, and the stable rockfill dam is formed. The device can overcome the defects of