【判断题】
水泥砂浆铺抹前，基层的混凝土和砌筑砂浆强度应不低于设计值的80％；
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防水混凝土结构厚度不应小于250mm，其允许偏差为+15mm、—10mm；迎水面钢筋保护层厚度不应小于50mm，其允许偏差为+10mm
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地下车站及机电设备集中的区域为Ⅱ级防水标准
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Ⅰ级防水标准为：不允许渗水，结构表面无湿渍
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区间隧道及联络通道等附属的隧道结构为Ⅱ级防水标准
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Ⅱ级防水标准指不允许有漏水，结构表面可有湿渍，总湿渍面积不应该大于防水面积的2‰，任意100 m2防水面积上的湿渍不应超过3处，单个湿渍面积不大于0.2m2，平均渗水量不大于0.05L/（m2•d）
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杭州地铁隧道结构通常采用盾构机掘进，并用钢筋混凝土管片进行拼装
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钢筋混凝土管片同一配合比每年生产5环应制作抗压强度试件一组，每10环制作抗渗试件一组
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车站次要结构包括：自成结构体系的内部框架结构梁柱、楼梯、站台板等
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预应力混凝土梁体允许下缘竖向及腹板主拉应力方向、齿板、锚端有裂缝
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封顶块插入方式先搭接700 mm径向推上，再纵向插入
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卷材防水层应采用高聚物改性沥青防水卷材和合成高分子防水卷材
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凡接近城市轨道交通线路的各种建筑物及设备，必须与线路保持一定的距离
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建筑限界是一个与线路中心线平行的横断面
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桥梁建筑物是桥梁、涵洞、明渠、天桥、地道、跨线桥和调节河流建筑物等的总称
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桥梁防护设备包括护锥、护岸、护基和护底
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上承式桥的桥面位于两主梁（桁梁或板梁）或两拱肋
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梁式桥又可分为：简支梁桥、连续梁桥、悬臂梁桥
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梁跨结构系指桥梁承担荷载横越空间的部分
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梁体的刚度指梁跨结构受荷载后抵抗弯曲变形的能力
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桥梁支座是连接桥梁防护设备和下部结构的重要构件
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梁的净跨度为沿计算水位量出的相邻墩台边缘的距离
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桥梁高度由桥面的轨底至河床最凹点的距离
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各式涵洞的长度应视其净高（或内径）h而定
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区间隧道是连接两个地下车站之间的建筑物
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地铁建设常常采用“低站位，高区间”的方法
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地铁盾构隧道按其拼装方式可分为通缝拼装和错缝拼装
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