谁能告诉我：“重型触探仪检测桥涵地基承载力的计算公式”，我先谢谢了！
推荐回答（1个）
公式在《桥涵工程试验检测技术》教材书中有，楼主去翻一番吧1、静力触探试验：指通过一定的机械装置，将某种规格的金属触探头用静力压入土层中，同时用传感器或直接量测仪表测试土层对触探头的贯入阻力，以此来判断、分析确定地基土的物理力学性质。静力触探试验适用于粘性土，粉土和砂土，主要用于划分土层，估算地基土的物理力学指标参数，评定地基土的承载力，估算单桩承载力及判定砂土地基的液化等级等。（多为设计单位采用）。2、动力触探试验：指利用锤击功能，将一定规格的圆锥探头打入土中，根据打入土中的阻抗大小判别土层的变化，对土层进行力学分层，并确定土层的物理力学性质，对地基土作出工程地质评价。动力触探试验适用于强风化、全风化的硬质岩石，各种软质岩及各类土；动力触探分为轻型、重型及超重型三类。目前承建单位一般选用轻型和重型。①轻型触探仪适用于砂土、粉土及粘性土地基检测，（一般要求土中不含碎、卵石），轻型触探仪设备轻便，操作简单，省人省力，记录每打入30cm的锤击次数，代用公式为R=（0.8×N-2）×9.8（R-地基容许承载力Kpa ， N-轻型触探锤击数）。②重型触探仪：适用于各类土，是目前承建单位应用最广泛的一种地基承载力测试方法，该法是采用质量为63.5kg的穿心锤，以76cm的落距，将触探头打入土中，记录打入10cm的锤击数，代用公式为y=35.96x+23.8( y-地基容许承载力Kpa ， x-重型触探锤击数)。3、标准贯入试验：标准贯入试验是动力触探类型之一，其利用质量为63.5 kg的穿心锤，以76cm的恒定高度上自由落下，将一定规格的触探头打入土中15cm，然后开始记录锤击数目，接着将标准贯入器再打入土中30 cm，用此30 cm的锤击数（N）作为标准贯入试验指标，标准贯入试验是国内广泛应用的一种现场原位测试手段，它不仅可用于砂土的测试，也可用于粘性土的测试。锤击数（N）的结果不仅可用于判断砂土的密实度，粘性土的稠度，地基土的容许承载力，砂土的振动液化，桩基承载力，同时也是地基处理效果的一种重要方法。（多为测试中心及设计单位采用）。
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