桩

After analysizing the results of SSRFEM and centrifugal model test, someconclusions are drawn that, the depth of slip surface implies that the Bishopssimplied method cannot indicate the true failure mechanism for the slopes reinforcedwith piles. The rate of safety factors decreases with the pile spacing decreasing, andthe salty factor of the slopes is the largest when the reinforced piles are installed in themiddle of the slopes, regardless of pile head confining conditions, and the deflection,maximum bending moment and shear force in the reinforced piles in the criticalcollapse are the biggest meantime. The fixed and hinged head condition of the pilesresults in smaller bending moment in the piles than that in unrotated and free headcondition, therefore the restrained pile head condition is recommended in the design.

3不同特性与工况下抗滑桩与土体相互作用的数值分析与离心模型试验研究表明：采用简化Bishop法计算得到的滑动面不能反映抗滑桩加固边坡的破坏机理，抗滑桩设置在边坡中部和减小桩间距有利于提高边坡稳定安全系数，而此时抗滑桩在边坡临界破坏时的挠度、最大弯矩和最大剪力相对较大；桩头固定、铰接与桩头自由、平移相比，所加固边坡的整体水平位移及边坡临界破坏时抗滑桩的最大弯矩相对较小，而稳定安全系数则较大，因此在进行抗滑桩设计时应尽量选择桩头固定与铰接的型式，或对桩头进行锚固以改善抗滑桩的受力特性，提高边坡的稳定安全性状。

This paper introduces the application of the high pressure rotational guniting pile which,in combination with the steel plate support,was used to successfully complete the construction of deep-buried low pile footing of No.

介绍武汉天兴洲长江大桥北岸引桥滠口右线桥25#墩在饱和软粘土和砂层中，利用钢板桩支护结合高压旋喷桩成功地完成了深埋低桩承台施工，使高压旋喷桩应用范围得到了进一步发展，创造了深埋低桩承台施工新工法，是一项值得推广和应用的新技术。

The new structure and the county, Hebei Province China Pile Driving Machinery Factory, factory has 30 years, the company developed and produced a series of Piling Machinery total of 10 series over 30 varieties, mainly KQ series of submersible Drilling Rig, KLB walker hydraulic auger drilling rig, DZB multi-rig, CFG series pile driver, car rigs, reverse circulation drill, spiral pile driver, hydraulic walking rig, gravel pumps, drilling and engineering products and related accessories (pipe, drill pipe, drill pipe, drill bit, seal apron);.

简介： 华构牌反循环钻机效率good，反循环钻机；河北省新河县华构桩工机械厂。河北省新和县华构桩工机械厂，建厂已有三十多年，公司研制生产的系列桩工机械共有10大系列30多个品种，主要有KQ系列潜水工程钻机、KLB液压步履式长螺旋钻机、DZB多功能钻机、CFG系列桩机、汽车钻机、反循环钻机、螺旋桩机、液压步履钻机、砂石泵、工程等产品及相关钻机配件（导管、钻机导管、钻杆、钻头、密封胶圈

The new structure and the county, Hebei Province China Pile Driving Machinery Factory, factory has 30 years, the company developed and produced a series of Piling Machinery total of 10 series over 30 varieties, mainly KQ series of submersible Drilling Rig, KLB walker hydraulic auger drilling rig, DZB multi-rig, CFG series pile driver, car rigs, reverse circulation drill, spiral pile driver, hydraulic walking rig, gravel pumps, drilling and engineering products and related accessories (pipe, drill pipe, drill pipe, drill bit, seal apron);.

华构牌反循环钻机效率good，反循环钻机；河北省新河县华构桩工机械厂。河北省新和县华构桩工机械厂，建厂已有三十多年，公司研制生产的系列桩工机械共有10大系列30多个品种，主要有KQ系列潜水工程钻机、KLB液压步履式长螺旋钻机、DZB多功能钻机、CFG系列桩机、汽车钻机、反循环钻机、螺旋桩机、液压步履钻机、砂石泵、工程等产品及相关钻机配件（导管、钻机导管、钻杆、钻头、密封胶圈

Based on the 70 axial force monitoring data on 64 manometers in south tower piles foundation of JiangYin Bridge, the force transferring mechanism of socketed pile group using friction ineffective treatment at the top 20 meters was analyzed. The surcharge problem, the course of stress adjustment and the transition of the slip surface on which was easiest to slide in pile group were discovered.

根据江阴大桥南塔墩基桩轴力64个测点的70次观测成果，分析了桩周摩擦失效嵌岩群桩的传力机理，揭示了群桩中的超载问题和应力调整过程以及最不利滑面的迁移；采用理论计算、定性评价和数值分析相结合的方法首次建立了基桩轴力安全监控模型。

Testing results of piles under low strain integrity are normally interpreted using one-dimensional stress wave theory. While one-dimensional stress wave theory is acceptable for pile-driving analysis the responses of piles integrity tests can not be adequately simulated when the hammer and the incident wave length are small in relation to the diameter of the pile.

基桩动测问题的理论基础一维应力波理论只有在锤径桩径比、波长桩径比、桩长桩径比足够大时才能近似成立，否则该问题实际上为应力波在柱体中传播的三维问题。

The method of testing the base settlement of pile bottom is introduced in this paper, How to use the characteristic of P-St, Sb, Ss, curve in engineering practice is then discussed.

首先介绍了桩基检测的方法并分析了单桩荷载—桩顶沉降、桩端沉降、桩身压缩曲线的特性及其在工程中的应用。

CThe overall design process as follows: According to the size and other data, combining the design result of pile and anchor, got the number of the piles along long margin, short margin and the overall number of piles, gave the furnished tables the anchor and the layout map of the pile, the profile and node map of the anchor.

c、整体设计过程如下：根据基坑的尺寸等一些原始资料，结合设计的桩径、桩长、桩中心距、配筋以及锚杆的设计结果得出了基坑长边、短边以及整体布桩数目，给出了锚杆设置情况统计表以及桩的平面布置图和锚杆的剖面图、节点图。

These problems include the selection of the pile styles, the application of the composition foundation of rigid piles with soft piles together, the computation of bearing capacity and settlement, the relation between the stress radio and bearing capacity, and the application of counter-construction using in composite foundation.

结合工程实践，在阐述刚性桩复合地基受力机理的基础上，对其设计中桩型的选择及其与柔性桩复合地基的综合应用、承载力与变形的计算、桩土应力比与复合地基承载力的关系以及逆作法施工桩基在复合地基施工中的应用等问题作了探讨。

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。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。