When tunneling,the disturbance induced by construction necessarily destroys the intrinsic stress balance of geotechnical material followed by a serial of problems about geotechnical environment,such as soil movement inducing the damages of the ground buildings,underground pipelines and pile foundations etc.

1 berth of COSCO SHIPYARD, deep level land movement and pore water pressure during the construction is discussed on the condition of typical engineering geological conditions in Zhoushan area.

Effect of deep foundation pit on surrounding environment can be attributed to the failure caused by poor enclosure of foundation pit and excessive surrounding ground movement caused by foun- dation pit construction.

Finite element analysis of compacting displacements of single jacked pile;

Based on the reference of literatures on analytic theories and applications about piles sinking,the reasons for the diversity between the anticipated displacement of soil when sinking piles using the analytic theories and the measured results are discussed and some remarks are presented for resolving problems of piles-sinking effectively and reasonably.