EXPERIMENTAL STUDY ON THE EFFECTS OF NEW FOAM ON THE IMPROVEMENT OF SANDY SOIL FOR EARTH PRESSURE BALANCE SHIELD

Experimental Study on the Effects of New Foam on the Improvement of Sandy Soil for Earth Pressure Balance Shield

In this paper, starting from the foaming parad bhasma price amount, half-life and other indicators, the surfactant with excellent performance is optimized, and the optimal compound ratio and appropriate foam stabilizer, viscosity enhancer, and additives are studied.A new type of foam agent formula for the EPB shield is developed.The performance of

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Collapse of an axion scalar field

Abstract The manuscript deals with an interacting scalar field that mimics the evolution of the so-called axion scalar dark matter or axion like particles with ultra-light masses.It is discussed that such a scalar along with an ordinary fluid description iphone 13 price dallas can collapse under strong gravity.The end state of the collapse depends

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