CAJ | 학술논문

根据应力协调原则，提出了刚性桩复合地基沉降计算新方法-应力协调法。此方法假定刚性桩达到极限承载能力状态，从而可方便地得到桩土应力比，同时规避了复合地基压缩模量的求解。此外，通过工程实例与其他两种典型的刚性桩复合地基沉降计算方法（极限应力法和规范CFG法）进行了对比分析，得出利用此方法计算的沉降量与实测值最为接近，而且反推的应力比与规范取值符合较好。但是由于复合地基沉降本身的复杂性以及理论和工程实践的有限，应力协调法还有待于进一步改善。
근거응력협조원칙，제출료강성장복합지기침강계산신방법-응력협조법。차방법가정강성장체도겁한승재능력상태，종이가방편지득도장토응력비，동시규피료복합지기압축모량적구해。차외，통과공정실례여기타량충전형적강성장복합지기침강계산방법（겁한응역법화규범CFG법）진행료대비분석，득출이용차방법계산적침강량여실측치최위접근，이차반추적응력비여규범취치부합교호。단시유우복합지기침강본신적복잡성이급이론화공정실천적유한，응력협조법환유대우진일보개선。
According to the principle of stress compatibility,a new settlement calculation method of rigid pile composite foundation is put forward,which is called stress compatibility method. On the premise of the rigid pile reaching its ultimate bearing capacity,pile-soil stress ratio can be identified easily. Meanwhile,no compressive modulus of composite foundation is required. Based on the engineering practice,the new method is compared with two typical settlement calculation methods,i.e. the utmost stress method and CFG pile method. The analysis results show that the settlement value by the stress compatibility method is close to the field measured number,and the inversed stress ratio basically accords with the number adopted in the relative technical code. However,limited by the complexity of composite foundation settlement and the insufficiency of theory and engineering practice,this method needs to be improved in the future.