地下室采用桩筏基础和地下连续墙。
文中还对桩筏基础进行了较为广泛的参数分析。
An extensive parametric analysis is also made to study the behaviors of piled raft.
通过大量实例分析提出了一个桩筏基础相对刚度表达式。
The inner force, settlement of raft, pile force were studied with the increase of raft-supported soil relative stiffness.
此方法可以用来分析大规模桩筏基础，具有较好的工程应用前景。
The proposed method could be readily used to analyze the large piled raft foundation.
重点探讨了桩筏基础空间桁架理论模型，为进一步研究明确了思路。
The authors also introduce a spatial truss model for pile-mat foundation analysis, which may light up a new research on pile-mat foundation.
桩筏基础设计的关键在于确定桩筏的荷载分担比及桩对减小沉降的作用。
The key point in the piled raft foundation design is to determine the proportion of load carried by piles and raft and the effect of diminished settlement of piles.
而且迄今为止，对桩筏基础的设计计算，也没有统一的、完整的计算方法。
Moreover so far there is not a uniform and integrated calculating method on piled raft foundation design.
随着我国建筑工程的蓬勃发展，桩筏基础已广泛应用于高层及超高层建筑中。
With the vigorous development of construction projects in China, the piled raft foundation has been widely used in high-rise buildings and ultra-high buildings.
通过对上部结构与桩筏基础的共同作用进行非线性分析，可以来优化基础设计。
In this paper, a type of analysis method and the program of nonlinear analysis of interaction of piled raft foundations and superstructure were established.
该方法可方便地用于非均匀布桩、非规则平面形状桩筏基础的计算和优化分析。
In addition, the analysis of the piled raft foundation with irregular shape of raft and the optimization of pile-layout could be easily carried out.
依据对桩筏基础设计参数的研究成果，给出桩筏基础优化步骤和算例的验证情况。
Based on the present results of the design factors to piled raft foundation, the optimum design steps are given and verified by an example.
对于这类桩筏基础，若仍然采用经典的薄板理论进行分析，就存在一定的局限性。
If this type raft foundation still is analyzed with the classical theory of thin plate, the limitation is obvious.
采用有限单元法对不同筏板刚度下桩筏基础下卧层附加应力的分布规律进行分析。
By finite element method, the distributions of additional stress of piled raft foundations in different raft rigidities are analyzed.
依据对桩筏基础设计参数的研究成果，给出桩筏基础优化步骤和算例的验证情况。
Based on the present results of the design factors to piled raft foundation, the optimum design...
最后对桩筏基础的沉降、各桩以及土之间的荷载分担情况进行了一系列的参数分析。
Finally, a series of parametric analysis was made to study the settlement of piled raft foundation and the loads Shared by the individual pile and subsoil.
结合最新的设计理念，从减沉设计与变刚度调平设计两方面探讨桩筏基础的优化设计。
Combined with new design ideas, from two aspects: reducing settlement design and variable rigidity design for balance settlement the optimization design of piled raft foundation is discussed.
基于改进的分层地基模型，考虑桩—土—筏的共同作用，提出了刚性桩筏基础非线性分析方法。
Based on an improved layered foundation model, the interaction of piles-soil-raft is taken into account to formulate a nonlinear method for the analysis of piled raft foundations.
根据已有的竖向荷载下刚性板桩筏基础分析结果提出了一种竖向荷载下桩筏基础的通用分析方法。
A general analysis method of piled raft foundation under vertical loading was presented based on the results of piled raft foundation with rigid cap under the same loading condition.
桩筏基础以筏板对角线与地铁隧道中心线重合的方式跨越地铁隧道对筏板的内力和变形影响最小。
The crossing method of raft diagonal which coincides with the center of metro tunnels has the least influence on the internal forces and the bending moment of the raft.
软弱地基中桩筏基础的研究一直是岩土工程中的一个重要课题，也是土木工程设计的一项关键技术。
The behavior of pile raft foundation in soft soil is a very important problem in geotechnical engineering.
因此，寻求切合工程实际的、经济合理的、安全可靠的设计方法一直是桩筏基础研究领域中的重要课题。
So it is an important subject for seeking a design method of practical, economic and reasonable, safe and reliable in the domain of piled-raft studying.
目前由于桩基荷载传递机理还没有完全研究清楚，桩筏基础设计无论在理论上还是在实际上都存在某些不合理的地方。
During the design of pile-raft foundation, there still exist many problems because the research on theory of piles' load-transfer mechanism is far behind the development of practice.
并详细讨论了带裙房桩筏基础在设缝和不设缝情况下的裙房面积大小、主裙楼筏厚不同等情况下内力分布、沉降分布情况。
This paper discusses the effects of internal force and the settlement of plate on ground and counterforce on pile of main towers and podiums with settlement joints between them.
本文提出了控制桩筏基础差异沉降的主要措施，通过调整筏板刚度和桩基支承刚度的分布等措施达到减小差异沉降的目的。
The paper puts forward the main measures of controlling the differential settlement of piled raft foundation by increasing the rigid of raft and modifying foundation rigid.
大量桩筏基础下存在较厚的饱和软弱下卧层，其变形和内力的研究不仅涉及到筏板、桩和土三者之间的相互作用，而且还跟时间有很大的关系。
Research for the deformation and internal forces of piled raft foundation on a thick soft substratum are concerned with not only the interaction between pile, raft and soils but the also the time.
本项研究提出了一种估计桩—筏基础筏底土所分担荷载的有效分析模型。
This paper presents an effective analytical model to estimate load capacity possessed by supporting soil for piled raft foundations.
浃底隧道出口明洞段回填厚度较大而基础土体软弱，因此采用了桩-筏基础的形式以避免过大沉降带来的不利影响。
Considering the thick backfill and soft foundation soil in the cut-and-cover section of Jiadi tunnel, a pile-raft foundation is accepted in order to avoid negative effect due to excessive settlement.
浃底隧道出口明洞段回填厚度较大而基础土体软弱，因此采用了桩-筏基础的形式以避免过大沉降带来的不利影响。
Considering the thick backfill and soft foundation soil in the cut-and-cover section of Jiadi tunnel, a pile-raft foundation is accepted in order to avoid negative effect due to excessive settlement.
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