▎ 摘　　要

NOVELTY - Crushing ground layer plug fixing wall agent comprises 100 pts. wt. cement, 5-30 pts. wt. cementation strengthening agent, 2-10 pts. wt. surface modified microcapsule curing agent, 6-25 pts. wt. interface strengthening agent and 35-60 pts. wt. water. The surface-modified microcapsule curing agent comprises a capsule core and a capsule wall. The capsule core includes latent curing agent. USE - The agent is useful in crushing stratum drilling (claimed). ADVANTAGE - The agent: solidifies in an alkaline environment; improves the bonding strength and rock integrity of deep broken formation rock; has specific self-healing ability; avoids the complicated drilling caused by the collapse of broken strata and falling blocks; and ensures the safe drilling in the later stage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the crushing ground layer plug fixing wall agent, comprising mixing, and stirring cement, cementing agent, surface modified microcapsule curing agent, toughening agent, and water to obtain product.