• This paper introduces a digital instrument for vertality of pile hammer. In the instrument AT89C51 is the key chip . The structure of instrument, s hardware and software are analysed.

    介绍一种单片机AT89C51核心的垂直度测量,分析了硬件组成主要软件工作流程。

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  • Hydraulic pile hammer is one of the pile driving machines that drive prefabricated piles into the ground in the construction of pile foundation such as construction, bridge, dock, etc.

    液压打桩用于建筑桥梁码头基础施工打入预制桩工机械

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  • Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile.

    本文应用冲击机械系统动力学分析打桩过程体与撞击应力产生传播以及沉桩过程影响

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  • Small , ultra-small models can play Piles of automatic hammer , highway , rail barrier pile , Impact also can be used to consolidate all types of roads and infrastructure .

    小型超小型自动打桩锤可以护坡公路铁路护栏可以冲击夯实各类基础

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  • The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.

    文中回顾了建桥工程应用风动潜钻进桩桩经验,具体介绍了使用的设备工具施工工艺技术

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  • The basic principle of simple high strain pile test method transformed from measured free fall of drop hammer is given in this paper.

    给出测量自由落锤加速度换算应变试桩的动力的简易基本原理测试操作与工程应用。

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  • By the construction example of garbage extruding pile impacted and rammed by a heavy hammer, the method is analyzed and some Suggestions are put forward.

    本文通过冲孔垃圾桩处理软弱地基工程实例介绍,对此方法进行了分析,并提出了改进意见。

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  • The drivability study of piling requires modeling of the hammer impact to calculate the input force wave at the pile head.

    可打性研究需要模拟击,计算出桩顶应力

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  • The hammer weight of High Strain Testing determines on that the pile capacity tested by High Strain Testing is correct or not.

    应变测试时锤选择,直接影响高应变承载力测试成功失败

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  • 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.

    动力过程中,桩长时间连续运动导致桩侧土体强度降低,使土体产生疲劳效应。

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  • Statistics through a large number of static load pile tests shows that hammer-driven pedestal piles through granite residual soil have advantages in their bearing capacity and cost.

    通过对大量试验成果统计证明花岗岩残积上中夯扩承载能力造价上的优势

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  • Statistics through a large number of static load pile tests shows that hammer-driven pedestal piles through granite residual soil have advantages in their bearing capacity and cost.

    通过对大量试验成果统计证明花岗岩残积上中夯扩承载能力造价上的优势

    youdao

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