查询词典 pile up

Based on the load transmission mechanism of space truss, and referenced theanalysis of test materials, a formula for calculating the bearing capacity of reinforcedconcrete compression strut is introduced. By using the theory of plastic hinge-line, anupper limit solution of bent bearing capacity for four-pile cap, which coincidesprecisely with the practical measurements, is obtained. By utilizing the reaction ofthe soil under cap and by basing on the method of plastic ultimate analysis, an upperlimit solution of punching shear bearing capacity for pile cap is acquired, which. coincides precisely with the practical measurements, and the formula is similar to thecode.A brief discuss on cooperative work of strip beam of foundation and single rankof piles is made. Separately considering the pile-cap and the pile-group, thencoupling their matrix of rigidity, the inner force of pile-cap is solved by the numericalmethod under some reasonable supposition. In comparison with other method, thecalculating results are exact, reliable and convenient in using. The method provides apowerful tQol fOr further analysis and research on this kind of structure.

本文以空间桁架传力机理为基础，结合试验资料分析，推导了钢筋混凝土等边三桩承台受冲切承载力计算公式；根据塑性铰线理论，导得了与试验结果吻合良好的四桩承台受弯承载力的上限解；利用承台底土反力分布，根据塑性极限分析方法，导得了桩基承台受冲切承载力的上限解，在此基础上，通过简化假定，得到与规范公式相类似的承台受冲切承载力实用公式，该公式能方便考虑台底土反力作用，与试验结果的吻合程度比规范公式好；简要讨论了桩基条形承台梁与单排桩的协同工作分析；在一些合理假定的基础上，将承台与群桩分开考虑，分别得到其刚度矩阵后进行耦合，通过数值方法求解承台内力，算例表明，该方法结果准确，使用方便，为该类结构的进一步分析研究及工程设计提供了强有力的工具。

Causes of breakage of tube pile and practical study on rectification-joining method;2. An application of sinking Pile of dilling to lead the hole in solving the broken pile of the tube pile ;3. Due to the difficulty of construction quality control,application of tube pile foundation has been restricted in limestone zone.

在灰岩等特殊地质中，因施工质量控制难度大，管桩基础的应用受到限制，可在设计和施工中采用静压管桩，并准许有一定比例的断桩，以及控制终压压力、改变承载力取值模式等方法，达到预防断桩、降低断桩率的目的。

A new method of calculating stable bearing capacity for overlength pile s;2. Load transfer performance of overlength pile s;3. Considering that there is little study about shaft resistance transfer behavior of overlength pile and the theory is based on short pile yet,shaft load transfer function of overlength single pile which considering depth influence is presented.

考虑到目前的超长桩的桩侧荷载传递性状研究，基本上还是基于短桩理论，提出了考虑超长单桩桩侧摩阻力的深度效应的单桩荷载传递函数，并且将荷载传递法和有限元方法结合起来，采用该荷载传递函数来模拟单桩的桩侧荷载传递规律。

The group's principal products include various kinds of single-head and multi-heads deep soil methed mixing pile machine, track drilling jumbo, static pressure pile machine, hammer pile machine, complex pile machine, screw pile machine, diaphragm wall drill machine for SMW method, rotatory drill machine, slurry pump, mortar pump, tap, drill rod, drill head, drill tool, construction material as well as textile machine and textile.

该集团公司的主要产品包括各种类型的单头搅拌桩机和多头搅拌桩机、各种类型的履带式凿岩台车、各种型号的静压桩机、各种类型的锤击桩机、各种类型的复合桩机、各种类型的螺旋桩机、各种类型的SMW工法的连续墙钻孔机、各种类型的旋挖钻机、各种类型的泥浆泵、沙浆泵、以及各种类型的水龙头、钻杆、钻头、钻具、建筑材料。还经营各种类型的纺织机械和纺织品等，我们还可以根据不同客户的要求和特点，设计不同的产品来满足客户的不用要求，我们可以为客户提供专业的服务。

Directed against the problem on confirming vertical bearing capacity of large diameter cast-in-place pile in the west of coteau area of Yunnan province, the paper, analyses the influence degree of the variety of soil physics and mechanics property in area geology condition on bearing capacity of pile foundation, through 5 piles' loading test; the influence degree of construction technics on bearing capacity of pile foundation under the influence of every exterior factors; the influence degree of grouting injection around the pile shaft on bearing capacity of pile foundation.

本文针对滇西山区大直径灌注桩竖向承载力确定存在的问题，进行了5根试桩的静载荷试验，分析了区域地质条件下土的物理、力学性质的变化对桥梁桩基承载力的影响程度；地下水对桩承载力的影响程度；各种外部因素影响下，桩的施工工艺对桩承载力的影响程度；通过在桩体周围土中注浆对桩承载力的影响程度。

In this paper, on the basis of the description of the pile-driving process and the dynamic analysis of the pile and the HSPD, the relationship between the frequency and the pile-driving force has been established under the conditions of the pile strength and the HSDP working requirements. The frequency character of the ZYB200B HSPD system has been analyzed quantitatively in the vibrancy pile-driving process, therefore the frequency range and the best available frequency have been obtained.

本文首先通过对压桩过程的描述和桩与液压静力沉桩机的力学分析，确立了液压振动压桩在桩的强度条件下和液压静力沉桩机工作要求下的压桩频率与压桩力幅值之间的关系；定量分析振动压桩时系统的频率特性，得出了ZYB200B型液压静力沉桩机振动压桩时压桩频率的取值范围和系统能得到的最佳频率值。

These properties include: loading function of soil body under raft plate;"dense outside and disperse inside"or "otherwise" pile distribution method ; negative resistance of soil block under raft plate and at top pile; settlement of pile raft foundation and deformation characteristics of soil mass under pile end;and application of dispersed pile raft foundation for high buildings.

主要包括：筏板底土体分担的荷载作用、&外密内疏&和&外疏内密&布桩法、带裙房桩筏基础的处理、筏板下块状整体及桩上部负摩阻力、桩筏基础沉降及其桩尖下土体的变形特性、疏桩桩筏基础在高层建筑中的推广应用等。

According to fully expounding the geologic condition of the location of the bridge and the structure of pile foundation and the research level of the bearing capacity of group pile foundation in the present, the paper analyzes the mechanism of group effect and the impact on bearing capacity of pile foundation. The finite-element numerical analyses and self-balanced method are adopted in the present paper to calculate and analyze the vertical bearing capacity of pile group of north main-tower is cleared up and analyzed.

在全面阐述桥位区工程地质条件和桩基础组成结构以及群桩基础承载力研究现状的基础上，深入探讨了群桩效应及其对桩基础承载力影响的机理，分别采用自平衡试桩测试技术和三维土工有限元模拟方法研究了单桩竖向承载力问题，通过对试验和计算结果的整理、对比分析，确定了能够客观反映地基土工程特性的地基土计算参数。

The time-history velocity response signal of pile can be decomposed by Sym wavelet. The power spectrum value can be extracted from some specified spectrum range. These values from one signal makes up the characteristic vector representing this signal. The relationship between characteristic vector of pile and pile defect type can he established by using BP artificial neural network. Abundant time-history velocity response signals of pile can be acquired by numerical simulation method.

利用Sym小波对基桩速度响应时程曲线进行小波分解，对指定频带上的信号分量进行特征值提取，提取的特征值为反映各频带范围内体现能量分布的功率谱均值，提取的特征值可构成反映信号特征的特征向量，同时利用BP人工神经网络的非线性映射特性建立特征向量和基桩缺陷类别之间的一种对应关系。

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So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。