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来源:百度知道 编辑:UC知道 时间:2024/05/05 14:29:08
3.2减少基坑暴露时间
尽快的按设计回筑好结构,建立永久的平衡。结构回筑要快,尤其是底板和底板前的垫层。端头井面积较大垫层可分为几缺,结构施工段的垫层也可分成几小段;大于200平方米以上胡基底不能置留一天以上。尤其是遇大雨,垫层可挖一块(段)浇注—块(段),但必须对应着支撑的位置筑垫层混凝土;底板混凝土应在垫层混凝土完后的5~7d内浇注,,总之浇注垫层和底板要抢,越快越好。
3.3加强监测工作
《监测报表》要及时、准确和完整。监测数据要上午测,下午就送施工、监理和建设单位,加密测试的《快报》测后二小时内必送交。每周要做周分析,在例会上讲评,并将分析报告在周一送项管部一份。当监测出现报警值,监理要组织分析,提出对策意见。
4将复加支撑预应力的控制措施定为制度
(1)在撑了第三道(或第二道)支撑后,对第—道、第二道轴力作检查,如预应力损失大应及时复加到设计规定的值;当撑上第五道(或第四道)支撑后,对第三道和第四道作险查并施加到设计规定值。
(2)如围护结构或周边环境变形值较大(出现报警值)即对变形大的测点左右约—倍坑深影响范围内的支撑,复加比设计规定的轴力再大10%的撑力(当然这要事前征得设计的同意并办妥签证手续).

3.2 Foundation to reduce the exposure time
As soon as possible by design to build a good structure, the establishment of a permanent balance. Structure to build faster, especially in the pre-floor and floor cushion. Larger end of the first well layer can be divided into several gaps, the structure of the cushion above construction can also be divided into a few short paragraphs; more than 200 square meters above the basement Hu can not stay home more than a day. In particular, heavy rain, a cushion to be tapped (above) pouring - block (above), but must correspond to the location of the support layer of concrete construction; bottom layer of concrete should be of concrete after casting within 5 ~ 7d, In short cast and the bottom cushion to get, the sooner the better.
3.3 to strengthen the monitoring
"Monitoring statements" to timely, accurate and complete. Monitoring data to test the morning, afternoon, send the construction, supervision and construction u