Stability-related accidents of ships could lead to disastrous consequences.

Aiming at the importance of pit work,combined with engineering practice,the generation reasons of common pit accidents were analyzed from exploration,design,construction and monitoring,and corresponding treating measures were proposed so as to complete excavation construction technology and avoid pit instability accidents,therefore guaranteed engineering construction running smoothly.

Being serious, the dangerous accidents must be prevnted.

Relationship between some family factors and accident-proneness among school-aged children;