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注册即送30元第一桶金是数字游戏标准的倡导者和技术的积极推动者,注册即送30元第一桶金为客户提供互动交流的投注服务一星期7日一日24小时,注册即送30元第一桶金并有免费试玩的机会,24小不打烊随时准备为您服务!

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                    MAIN COMPOSITION

                    科研项目

                    基桩自平衡静载试验法检测技术规程

                    项目时间: 完成情况:

                    基桩自平衡法在国外称o-cell法,该方法利用桩土体系自身提供反力以确定单桩承载力和桩周土层的侧摩阻力、桩端阻力,是接近于竖向抗压(拔)桩实际工作状态的试验方法。其原理是在桩身或桩端埋置荷载箱,抗压试验时,利用上部桩自重、上部桩桩侧摩阻力来代替堆载法中重物或锚桩法中锚桩以提供反力;在抗拔试验时,利用下部桩桩侧摩阻力及端承力来代替传统抗拔静载试验中的地基或锚桩以提供反力,从而达到试验基桩承载力的目的。试验时,从桩顶通过输油管对荷载箱内腔施加压力,箱盖与箱底被推开,同时向上部桩及下部桩施加大小相等、方向相反的力,促使桩周土的摩阻力与端阻力发挥作用,桩土体系破坏或满足工程的实际要求时停止试验。自平衡试桩法试桩时的工作状态与桩实际工作时的状态有所不同,是接近于实际工作状态的一种近似方法。

                                                            备案号:冀ICP备16009787号-3 地址:石家庄市天山大街266号方大科技园8号楼电话:0311-66699930

                    注册即送30元第一桶金

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