At the present time, the researching methods for the raft foundation mainly contain prototype foundation testing, model test and finite element analysis.
目前，筏板基础的研究手段主要有：原型试验、模型试验和有限元分析方法。
Compressive stress produced by horizontal prestressing tendons within the raft foundation has much to do with the effective prestress and punching shear capacity.
在考虑应力扩散的影响对抗剪有效作用下，提出了预应力筏板基础边柱合理的抗冲切承载力计算公式。
The large plinth of thick raft foundation refers to the raft foundation which links several separate architectural units above the ground as a whole by extended substructure.
大底盘厚筏基础是通过扩大的地下结构，将地面上不同建筑单元连成一体的筏板基础。
Based on the deformation modulus from the in-situ plate loading test, the settlement of each point on the raft foundation was calculated using spring model with concentrating force.
根据原位压板试验确定的强度和变形参数计算筏板基础下地基的承载力，并采用集中力弹簧模型计算筏板各点的沉降。
Preserve temperature and wet maintenance methods, usage of "water-stored the surface of the concrete", is applied to protect the key to construction quality of mass concrete of the raft foundation.
采用的混凝土表面贮水蓄热保温保湿养护措施，是保证筏基大体积混凝土施工质量的关键。
The behavior of pile raft foundation in soft soil is a very important problem in geotechnical engineering.
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 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.
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。
Then summarizes the mechanics characteristic of MRS and foundation soil and the distribution of raft stress and the foundation settlement laws.
给出了密肋壁板结构与地基土相互作用的受力特性及筏板应力分布规律、基底土反力的分布规律和地基的沉降规律。
In prevail algorithm for raft foundation, the paper indicates that the most economic and suitable method is finite element analysis while accounting for rigidity of upset structure.
从现行的筏形基础的诸多算法中，指出考虑上部结构刚度贡献的有限元算法是其中较为合理和经济的计算方法。
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.
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。
Based on the present results of the design factors to piled raft foundation, the optimum design steps are given and verified by an example.
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。
A method of topology optimization of grillage structure with stress constraints is presented and applied to analyze the reinforced beam of raft foundation.
对筏型基础的加强梁分布进行拓扑优化分析，提出一种应力约束下的格栅结构的拓扑优化方法。
The interaction between foundation soil and waffle-slab raft is studied based on large-scale model tests.
通过室内模型试验，对天然地基上梁板式筏形基础与地基共同作用问题进行了研究。
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.
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。
The numerical results of the examples show that it has the advantage of reducing deformation and moment in raft foundation.
钢筋混凝土筏板基础的受力和变形符合筏板基础的实际受力状况，结果令人满意，表明本文的计算方法是切实可行的。
A settlement computation method to the composite foundation composed of slurry wall-pile-box or thick raft is proposed, which is defined in the paper as two-stage settlement computation method.
提出了由地下连续墙-桩-箱或筏所构成的复合基础的沉降计算方法，该方法定义为二阶段沉降计算方法。
In soft soil area, we give priority to the piled box (raft) foundation in choosing the foundation type for super-tall building.
软土地区，桩箱(筏)基础是高层尤其是超高层建筑的首选基础型式。
The effect of the supporting pile on the interaction system of structure, raft foundation and soil is studied.
研究了支护结构对上部框架结构—筏基—地基的共同作用体系的作用，建立了共同作用体系有限元模型。
The analysis of raft foundation is a problem of thin plate resting on the elastic subgrade.
筏式基础的分析属于弹性地基上的薄板问题。
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.
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。
The cantilever part of raft foundation has the advantage for raft foundation to suffer load.
设置悬挑有利于筏板基础的受力，但设置悬挑的长度不宜过大。
The actual mechanical behaviour of raft foundation is very complex. There are many influencing factors.
筏式基础的实际力学性状是非常复杂的，有很多影响因素。
Changed pile foundation scheme into raft foundation scheme saved the cost and minimized construction period significantly.
将桩基础改为天然地基基础，方便施工，有效地缩短了工期、降低了造价。
The reinforcement concrete Raft foundation is a type of foundation used wildly in the high-rise building.
钢筋混凝土筏形基础是高层建筑中广泛采用的一种基础形式。
Different from general raft foundation, the inner force of ribbed beam is calculated as variable section because of the stump.
与一般的筏板基础有所不同，由于有柱墩，有肋梁墩式筏板基础梁的内力需按变截面梁计算。
The proposed method could be readily used to analyze the large piled raft foundation.
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。
Detailed study was done in the determination of base bearing capacity, raft stake composite stress analysis, auger ground, bearing stratum stress stretching and pile foundation construction.
对设计中的基础承载力的确定、筏桩复合受力分析、下卧软土、持力层应力扩展、桩基施工等方面进行了较为详细的研讨。
In this paper, on the base of the interactive principles of superstructure, base and soil, a computation method of thick-raft foundation is brought forward in which many factors are considered.
本文根据高层建筑上部结构、基础和地基共同作用的基本原理，提出一种厚筏基础的计算方法，考虑了多种因素影响，比较符合基础的实际受力状况。
In this paper, on the base of the interactive principles of superstructure, base and soil, a computation method of thick-raft foundation is brought forward in which many factors are considered.
本文根据高层建筑上部结构、基础和地基共同作用的基本原理，提出一种厚筏基础的计算方法，考虑了多种因素影响，比较符合基础的实际受力状况。
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