drop pile hammer

Comparison measurement of wave velocity in some institute main-building before piling and after;

某高校主楼工程打桩前后的波速对比测试

Influence to concrete in early Sdidifying period by piling;

打桩振动对周围新浇混凝土的影响

Excess pore pressure induced in piling in saturated structural soft soils;

结构性软土中打桩引起的超孔隙水压力

Analysis of ground vibration due to pile driving;

打桩引起的地面振动的研究

Influence of poisson effect to skin resistance for pile driving;

泊松效应对打桩桩侧阻力的影响

An enquiry into the effects of pile driving of the foundation and water lowering on the buillings around;

基础打桩及降水对周围建筑物影响的探讨

The potential hazards caused by pilling to environment in construction are described according to the situation in Wuhan.

综述了房屋建筑中打桩引起周边环境振动的评价策略和方法。

The survey methods of Hangzhou Bay Major Bridge pilling are discussed.

介绍了海上GPS打桩定位系统的工作原理,讨论了在杭州湾跨海大桥桩基定位中利用GPS打桩系统打桩定位的方法及提高定位精度的主要措施。

Investigation upon the optimization of the dynamic performance of DZF-120 portable pile driver used for flood prevention;

DZF-120型便携式防汛抢险打桩机动力学性能优化研究

Optimization of impact position and simulation of small vibratory pile driver;

小型振动冲击式打桩机冲击点优化及计算机仿真