This paper introduces the test results and calculative method by using the composite foundation of sand-stone pile and concrete pile with low strength.
本文通过试验与工程实践，介绍采用碎（砂）石桩及低强度混凝土桩组合构成复合地基的试验成果、计算方法及应用检测成果。
Single pipe pile shows sliding failure at interface and cannot utilize the strength of material; the bearing capacity and deformation ability are low.
结果表明，现行的单钢管桩属于界面的粘结破坏，承载力低，变形能力弱，不能充分发挥材料特性。
The method of dynamical measurement which was applied to analysis of pile driving is extended to test and measurement on the stiffness and strength of vertical joints between diaphragm walls.
将用于桩基检测的动测法，推广应用于地下连续墙纵向接缝刚性和强度的测试。
The Strength Reduction Finite Element Method is applied to test whether the sliding face cross over the pile with the short anti-side piles.
运用有限元强度折减法对设置抗滑短桩后，对滑面是否越过桩顶进行了验证。
The strength of pile foundation rock decides directly engineering quality and security.
桩基岩石强度直接决定工程质量和安全。
Compound detecting is used in 6-2 pile because its concrete cube compressive strength is not qualified.
某大桥6—2桩由于砼试件抗压强度不合格，进行了多种方法的检测。
The pile of low strength concrete (LC pile) has very extensive applied foreground because of its working principle AD economic factor.
低强度等级混凝土桩(LC桩)由于其工作原理及经济等因素，应用前景十分广泛。
The buckling equivalent length of a pile is not only used in the buckling of the pile but also one of the necessary parameter checking the material strength of the pile.
基桩的稳定长度不仅用于基桩的纵向屈曲问题，而且也是桩身材料强度验算必不可少的参数之一。
The technique of rammed bulb and solid inorganic material with high strength is an important way for the improvement of pile bearing and composite foundation reinforcement effect.
采用夯扩施工工艺和高强度的固体无机料是提高桩体承载力和复合地基承载力加固效果的重要环节。
The influence factors and strength variation of the deep mixing pile are analyzed, and the application of reflected wave method in the deep mixing pile test is investigated.
对深层搅拌桩强度变化及影响因素进行了分析，并就反射波法在深层搅拌桩检测中的适用性进行探讨。
This paper deals with materials, design parameters. construction batch strength and design of mix proportion for underwater concrete cast in a major diameter cast in place pile.
论述大直径灌注桩水下浇注混凝土时的材料选择、设计参数选择、施工配制强度及配合比设计。
An introduction is given to sinking technology for large diameter prestressed high strength tubular pile, and issues for consideration during sinking and treatment of problems encountered.
介绍大直径预应力高强度管桩的沉桩技术，以及沉桩过程中的注意事项和问题处理。
The paper involves the formation mechanism of the strength of quicklime mixing pile, the validity of treatment of highway soft foundation and the applicable conditions.
论文探讨了搅拌生石灰桩强度形成机理，公路软基处理的有效性及适用条件。
The key problem of karst foundation is not the foundation strength itself but the foundation stability, especially the stability of the free face of rock mass on the pile tip.
岩溶地基突出问题不是地基强度而是地基稳定性，尤其是桩端岩体临空面稳定性。
During driving a pile, the soil around the pile will be disturbed by the repeated hammer loading, which cause the soil strength to decrease greatly.
在动力沉桩过程中，桩长时间连续运动导致桩侧土体强度的降低，使土体产生疲劳效应。
The Inspection of concrete strength of cast in situ piles by Ultrasonic is to identify concrete strength at the same time to test uniformity and integrality of pile body.
超声检测灌注桩混凝土强度是指在超声检测桩身混凝土匀质性、完整性的同时确定桩身混凝土的强度。
The strength of top pile concrete, especially head part, ensured by taking measurement, Single allowable bearing capacity of this pile is enhanced.
采取措施保证桩顶(尤其是桩头部分)混凝土强度，提高单桩容许承载力。
The idea on low strength request (relative to the strength of the pile shaft) to grouted body in sedimentary region at the pile bottom is clarified.
阐明了对桩底沉渣区灌浆体低强度(相对桩身强度)要求的概念。
The unascertained mathematics was introduced to analyze the representative values of compressive strength of concrete core from cast in-suit pile at the condition of small sampling data.
根据未确知数学理论，提出了小样本条件下灌注桩混凝土抗压强度代表值的未确知数分析法。
The experiment reveals that composite sample strength does not mean a simple addition of reinforcing pile and soil according to their replacement proportion.
实验结果表明：复合体的竖向强度不是两种材料按一定几何比例简单叠加。
In the paper, the probability analysis method of the cut strength of cement soil pile composite foundation is investigated.
研究了粉喷桩复合地基抗剪强度概率分析的方法。
The results show that the pile shoe greatly enhance the structural strength of jack-up platform.
研究了两种桩靴形式对该平台的影响，其结果表明加桩靴对平台的结构强度有很大的提高作用。
The anchor rod is anchored directly on the agitation pile wall of "thin type" with relatively low strength and channel bar is used under the anchor to contact with the agitation pile.
将土层锚杆直接锚定在强度相对较低的“薄型”搅拌极墙上，锚下用槽钢作为受压铁件与搅拌极相接触。
The static load test in-situ and low-strain detection show that the bearing capacity of single pile meets design demand; pile integrity is good; concrete strength of pile reaches design value.
现场静载试验检测和低应变检测结果表明，单桩承载力满足设计要求，桩身完整，其混凝土强度达到了设计值，可满足工程需要。
The mixing pile using cement is effective to construct shoring structure and to improve ground strength.
水泥土搅拌桩作为基坑支护结构或用于提高地基承载力效果显著。
The pile of low strength concrete(LC pile) has very extensive applied foreground because of its working principle and economic factor.
低标号混凝土桩（LC桩）由于其工作原理及经济等因素，应用前景十分广泛。
The main structures with strength checking include the stanchion, the upper platform and the base seat. The suggestions about the safety of the pile driving frame are put forward.
在此基础上，进一步对主桩架结构包括支柱、顶架平台、支座等进行了强度校核验算，并对桩架的运行安全提出了建议。
Preparation of high strength concrete with stone sand (stone screenings) and the application of the stone sand in the PHC pipe pile production are presented.
介绍了用人工砂(包括石屑)试配高强混凝土以及人工砂在预应力高强混凝土管桩生产中应用的情况。
Preparation of high strength concrete with stone sand (stone screenings) and the application of the stone sand in the PHC pipe pile production are presented.
介绍了用人工砂(包括石屑)试配高强混凝土以及人工砂在预应力高强混凝土管桩生产中应用的情况。
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