[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$flMMaee5MnmLerdXYxBhuqD-saoKlNY6ok7h5GBpLH_0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":29,"type":30},[],"2023-10-18 20:49:03",100552705,[8,9,10,11],"5%","10%","20%","15%",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},67,"74d92d34d140f5ae885dd5d354fda1ea","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8b66ab251e2464ca48a0e7c954b4763c.png","地基基础检测技术","3d4157e47fe84586995ff7c0ed5aae18","3.4 桩基完整性测验","当采用低应变、高应变和声波透射法抽检桩身完整性所发现Ⅲ、Ⅳ类桩之和大于抽检桩数的 ( ) 时,宜采用原检测方法继续扩大抽检.",[21,31,40,49,58,67,76,86,89,98],{"answer":22,"createTime":23,"id":24,"options":25,"question":28,"source":29,"type":30},[],"2023-10-18 20:49:02",100552686,[26,10,9,27],"30%","40%","混凝土桩的桩身完整性检测,对于设计等级为甲级,或地质条件复杂、成桩质量可靠性较低的灌注桩工程,抽检数量不应少于总桩数的( ),且不得少于 20 根","v1",0,{"answer":32,"createTime":23,"id":33,"options":34,"question":39,"source":29,"type":30},[],100552690,[35,36,37,38],"90&deg;","180&deg;","60&deg;","120&deg;","采用低应变反射波法检测桩身完整性时,空心桩的激振与测量传感器安装位置宜在同一水平面上,且与桩中心连线形成的角宜为( )",{"answer":41,"createTime":23,"id":42,"options":43,"question":48,"source":29,"type":30},[],100552693,[44,45,46,47],"1500m\u002Fs","2000m\u002Fs","3000m\u002Fs","4000m\u002Fs","已知桩长为20m,测得反射波时间为10ms,则波速为( )",{"answer":50,"createTime":23,"id":51,"options":52,"question":57,"source":29,"type":30},[],100552695,[53,54,55,56],"1000Hz","1500Hz","2000Hz","2500Hz","当采用频域分析时,若信号中的最高频率分量为1000Hz,则采样频率至少应设置为( )",{"answer":59,"createTime":23,"id":60,"options":61,"question":66,"source":29,"type":30},[],100552698,[62,63,64,65],"0-KHz","0-2KHz","0-5KHz","0-10KHz","低应变检测中一般采用速度传感器和加速传感器,加速度传感器的频响特性优与速度传感器,其频响范围一般为( )",{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":29,"type":30},[],100552700,[71,72,73,74],"3天","5天","10天","14天","在进行低应变检测桩的完整性时,宜在成桩几天后进行( )",{"answer":77,"createTime":78,"id":79,"options":80,"question":85,"source":29,"type":30},[],"2025-11-14 17:29:09",100552703,[81,82,83,84],"1","2","3","4","混凝土桩的桩身完整性抽检数量时,柱下三桩或三桩以下承台的抽检数不得少于 ( )根",{"answer":87,"createTime":5,"id":6,"options":88,"question":19,"source":29,"type":30},[],[8,9,10,11],{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":29,"type":30},[],100552707,[93,94,95,96],"高频","低频","宽频","窄频","对于低应变反射法,要检测桩身深部缺陷,应选用可产生较丰实的( )信号的材质锤头",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":29,"type":30},[],100552709,[102,103,104,105],"截面缩小","截面不变","与截面无关","截面扩大","当在桩顶测出的反射波速度或应力与入射波信号极性一致,则表明在相应的位置存在( )"]