摘要
以滨海煤电站煤场地基为研究对象,干煤棚的桩基采用PHC桩,在PHC前设有CDM保护桩,通过软件PLAXIS 3D进行模拟计算取得区域内沉降量、PHC桩身弯矩,通过离心机进行模型试验取得区域内沉降量、PHC桩身弯矩、CDM桩身弯矩等。研究了CDM桩及桩间土在承受上部煤堆荷载所产生水平力的作用。本文研究结果表明CDM桩对PHC桩有一定的保护作用,共同受力承载上部堆载。
This paper takes the foundation of a coastal coal power station as the research object.The pile foundation of dry coal shed adopts PHC piles,and CDM piles are set in front of PHC piles as protected piles.Using PLAXIS 3D software for simulation calculation,the settlements and the bending moments of PHC piles are obtained.Through centrifugal model test,the settlements and the bending moment of PHC pile are also obtained.The effects of ground improvement under the load of coal stockpile are further studied.Results show that CDM piles have protection effect on PHC piles.These two type of piles work together to bear the coal field load.
作者
闫华林
YAN Hua-lin(China Huadian Engineering Cooperation Ltd.,Beijing 100160,China)
出处
《地基处理》
2021年第2期126-130,共5页
Journal of Ground Improvement
关键词
干煤棚
PHC桩
CDM桩
桩身弯矩
桩间土
dry coal shed
prestressed high-strength concrete pipe pile
cement deep mixing pile
bending moment of pile
soil between piles
