Temperature-adjustable and pressure-adjustable bubble attenuation testing device and method for foamed light soil

The invention provides a temperature-adjustable and pressure-adjustable bubble attenuation testing device and method for foamed light soil. The device comprises a foamed light soil container, a temperature control mechanism and an air pressure control mechanism, the foamed light soil container comprises a base, a transparent foamed light soil storage barrel, a bottom plate and a top plate, the bottom plate is fixed to the bottom end of the transparent foamed light soil storage barrel, the top plate is fixed to the top end of the transparent foamed light soil storage barrel, the bottom plate is fixed to the base, and a plurality of flow guide pipes are arranged on the side wall of the transparent foamed light soil storage barrel from top to bottom. The temperature control device comprises a heating pipe and a temperature controller, the heating pipe is installed in the transparent foamed light soil storage barrel, and the temperature controller is electrically connected with the heating pipe; the air pressure