Carbon fiber composite material-based pressure chamber

The invention provides a carbon fiber composite material-based pressure chamber which mainly comprises a composite material layer and a metal-based barrel, wherein the composite material layer wraps the periphery of the metal-based barrel and is prepared from a carbon fiber composite material; a rock test sample base is arranged in the metal-based barrel; a rock test sample is placed on the rock test sample base; a cushion block is placed above the rock test sample; the pressure chamber is filled with a confining pressure liquid, and confining pressure is loaded; an axial loading force F acts on the rock test sample through the cushion block. The pressure chamber provided by the invention is low in density, high in intensity and large in elastic modulus; moreover, the inside is prepared from a metal material, so that the edge is not liable to damage during repeated installation, removal and replacement of the rock test sample in the pressure chamber, and the service life is prolonged. The working mode of the