The anti-sloughing mechanisms of modified polyalcohol appear as: (1) water absorbing mechanism, that is, the strong water absorbing of modified polyalcohol inhibits the forming of hydrate, so the water absorbing trend of clay in mud shale is reduced;

• 改性多元醇的防塌作用机理表现为:(1)吸水机理,多元醇的强吸水性抑制水化物的形成,降低了泥页岩中粘土的吸水趋势;