In designing high - rise building , it is found that the bearing capacity of natural soil usually could not meet our requirement because of the very great vertical and horizontal loads which makes the piled raft foundation is in general use 高层建筑设计中，垂直、水平荷载都很大，天然地基承载力往往不能满足设计要求，从而使桩筏基础成为被普遍采用的基础形式。
Third , the paper is introduced and analyzed the calculation methods of bearing capability on reinforced foundation , then puts forward the calculation methods of bearing capability reinforced foundation . then this method is verified by projects 再次，介绍并分析国内外加筋地基承载力的计算方法，提出两种常用基础形式下加筋地基承载力的实用计算公式，并通过工程实例加以检验。
Reinforced concrete drilled filling pile is the widely employed bridge foundation in langfang city , by the statistics of bridge foundation now , about 80 % bridges have this foundation form . however , the construction quality is poor 钢筋混凝土钻孔灌注桩在我市是应用范围最广的桥梁基础形式，通过对既有桥梁基础调查，钻孔灌注桩约占所有桥梁的80左右，但是桩基的工程质量却令人担忧。
Along with the piles technology " s development and construct skill bring forth the fresh , pile has became the broadest foundation forms in project item . the negative friction in pile " s designing and constructing is acquainted with for engineer 随着桩基技术的发展和施工工艺的推陈出新，桩基础已经成为工程建设中应用最广泛的基础形式，桩基础在设计和施工中产生的负摩擦力也渐渐为人们所认识。
Deflection - correction and stabilitation of house with differnt foundations . such as lian yungang jiguan hospital , no . 2 building zhenyun road , yuntai dstrict and four villas of jiye road estate developmetn co . ltd . by this way all these dangerious houses became safe 近几年完成了市机关医院、云台区振云路2号楼、基业房地产开发公司四幢别墅楼等工程不同基础形式房屋纠编加固工作，使原危险房屋变成能安全居住的房屋。
In single pylon cable stayed bridges , and cable stayed bridges without backstays , when the bottom of the tower bears the moment from the dead load , it is concluded that non - symmetric configuration of pile cluster corresponding to the upper structure is more practical than symmetric configuration of pile cluster 当独塔斜拉桥、无背索斜拉桥等桥梁塔底永久作用有弯矩时，与完全对称的基础形式相比较，和上部结构相协调的不对称基础形式更加适用。
Contrast with the results , the dissertation discover that in the three type foundation of strip foundation , raft foundation and pile - raft foundation , the structure system with strip foundation has large deformation and forces variation ; the structure system with pile - raft foundation show mini different contrast with the norm calculation 对比分析了条形基础、筏板基础及桩筏基础等三种基础形式下土与交错桁架结构体系共同作用的反应，指出条形基础的交错桁架结构体系变形及内力会产生较大变化，桩筏基础的交错桁架体系变形与不考虑共同作用的常规计算结果较为接近。
Abstract : this paper introduces the suitable range , the working principle , the construction technology and the measure of quality of driven cast - in - place piles , analyses the characteristics of engineering geological layer in anshan area , and finally , further discusses their economic efficiency of cast - in - place piles and shallow foundations 文摘:论述了沉管灌注桩的适用范围、工作原理、施工工艺和质量保证，并结合鞍山地区的工程地质结构特点，探讨了采用沉管灌注桩与浅基础形式两种工艺的经济效益
Because of the high horizontal and vertical loaded capacity as well as the good resistance to uneven settlement , piled raft foundations are widely used in the thick soft soils in coastal areas . as a result , the research of interactions between superstructure and foundation is a constant hotspot in the geotechnical engineering 桩筏基础因其具有很高的横向、竖向承载力和良好的抵抗不均匀沉降的能力，一直以来都是沿海深厚软土中高层建筑的主要基础形式，对桩筏基础共同作用的研究也一直是岩土工程领域的一个热点。
