【判断题】
通信管道施工中,遇到不稳定土壤或有腐蚀性的土壤时,监理单位应及时提出,待有关单位提出处理意见后方可施工。
A. 对
B. 错
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答案
B
解析
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相关试题
【判断题】
挖掘沟(坑)如发现埋藏物,特别是文物、古墓等必须立即停止施工,并负责保护现场,与有关部门联系,在未得到妥善解决之前,施工单位等严禁在该地段内继续工作。
A. 对
B. 错
【判断题】
人(手)孔坑的长边与人(手)孔壁长边的外侧间距不应小于0.4m,宽不应小于0.3m。
A. 对
B. 错
【判断题】
通信管道工程的沟(坑)挖成后,凡遇被水冲泡的,必须重新进行人工地基处理,否则,严禁进行下一道工序的施工。
A. 对
B. 错
【判断题】
挖掘通信管道沟(坑)施工现场,应设置蓝白相间的临时护栏或醒目的标志。
A. 对
B. 错
【判断题】
不同种类、标号的水泥不得混合使用;砂和石料的含泥量如超过标准,必须用水洗干净后方能使用。
A. 对
B. 错
【判断题】
混凝土的搅拌必须均匀,以混凝土颜色一致为度。搅拌均匀的混凝土应在初凝期内浇筑完毕。
A. 对
B. 错
【判断题】
人(手)孔、通道内部净高应符合设计规定,墙体的垂直度允许偏差应不大于±20mm,墙体顶部高程允许偏差不应大于±30mm。
A. 对
B. 错
【判断题】
通信管道工程的砌体,严禁使用掺有白灰的混合砂浆进行砌筑。
A. 对
B. 错
【判断题】
上覆、盖板混凝土必须达到设计规定的强度以后,方可承受荷载或吊装、运输。
A. 对
B. 错
【判断题】
人(手)孔口圈顶部高程应符合设计规定,允许负偏差不应大于20mm。
A. 对
B. 错
【判断题】
炎热夏季和严寒冬季施工都要盖草袋,注意混凝土的防晒和防冻。
A. 对
B. 错
【判断题】
塑料管道的基础,土质较好的地区(如硬土),挖好沟槽后夯实沟底,回填50mm细砂或细土。
A. 对
B. 错
【判断题】
塑料管道的基础,土质稍差的地区(如松软不稳定地区),挖好沟槽后应做混凝土基础,基础上回填50mm细砂或细土
A. 对
B. 错
【判断题】
改、扩建水泥管道工程,可以在原有管道两侧加扩管孔。
A. 对
B. 错
【判断题】
塑料管道铺设时,塑料管群的矩形高度不宜小于宽度,但不宜超过一倍。
A. 对
B. 错
【判断题】
塑料管道铺设时,直线管道的段长不应大于150m。
A. 对
B. 错
【判断题】
直线管道管孔试通,应采用拉棒方式试通。拉棒的长度一般为900mm,拉棒的直径为管孔内径的95%。
A. 对
B. 错
【判断题】
凡有出厂证明的器材,经检验发现问题时,应立即撤离现场。
A. 对
B. 错
【判断题】
通信管道工程中使用水泥的品种、标号应符合设计要求
A. 对
B. 错
【判断题】
管块的标称孔径允许最大正偏差不应大于0. 5mm,负偏差不应大于lmm,管孔无形变。
A. 对
B. 错
【判断题】
水泥管块强度有问题应进行抽样试验。抽样的数量应以工程用管总量的3%。(或大分屯点数量的5%)为基数,试验的管块有90%达到标准即为合格
A. 对
B. 错
【判断题】
钢材的材质、规格、型号应符合设计文件的规定,不得有锈片剥落或严重锈蚀。
A. 对
B. 错
【判断题】
人(手)孔井盖装置(包括外盖、内盖、口圈等)的规格应符合标准图的规定。
A. 对
B. 错
【判断题】
桩点设置应牢固,顶部宜与地面平齐。桩点附近有临时建(构)筑物时,可做定位检点,并做好标志和记录。
A. 对
B. 错
【判断题】
施工现场条件允许,土层坚实及地下水位低于沟(坑)底,且挖深超过2m时,可采用放坡法施工
A. 对
B. 错
【判断题】
室外最低气温在零下5℃时,对所挖的沟(坑)底部,应采取有效的防冻措施。
A. 对
B. 错
【判断题】
在市内主于道路的回填土夯实,应与路面平齐。
A. 对
B. 错
【判断题】
人(手)孔坑的回填土,需高出人(手)孔口圈的高程50mm。
A. 对
B. 错
【判断题】
混凝土在初凝之前如发生离析现象,该混凝土不得使用于工程上。
A. 对
B. 错
【判断题】
砖、混凝土砌块(以下简称砌块)砌筑前应充分浸湿,砌体面应平整、美观,不应出现横向通缝。
A. 对
B. 错
【判断题】
相邻两组穿钉间距应符合设计规定,偏差应小于10mm.
A. 对
B. 错
【判断题】
管顶距人(手)孔、通道上覆及沟盖底面不应小于300mm。管底距人(手)孔、通道基础面不应小于400mm。
A. 对
B. 错
【判断题】
通信管道宜采用素混凝土基础,混凝土的标号、基础宽度、基础厚度应符合设计规定。
A. 对
B. 错
【判断题】
对于新建、改建的建筑物,楼外预埋的通信管道应与建筑物的建设同步进行,并应与公用通信管道相连接。
A. 对
B. 错
【判断题】
通信管道建设规划必须纳入城市建设规划。
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B. 错
【判断题】
在终期管孔容量较大的宽阔道路上,当规划道路红线之间的距离大于或等于30米时,应在道路的两侧修建管道或通道。
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B. 错
【判断题】
通信管道与通道宜选择地下、地上障碍物较少的街道。
A. 对
B. 错
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通信管道应与杆路在两侧。
A. 对
B. 错
【判断题】
湾管道中心夹角宜尽量大。
A. 对
B. 错
【判断题】
通信管道穿越铁路和较宽的道路时,应在其两侧设置人(手)孔。
A. 对
B. 错
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