最新基坑围护、降水及土方开挖专项施工方案名师精编资料汇编

1、基 坑 围 护 、 降 水 及 土 方 开 挖 工 程 专 项 施 工 方 案SpecialConstructionScheme of FoundationDitchSupport,Precipitationand Earthwork Excavation Engineering一、工程概况Project Overview1.1概述 Summary工程名称：上海联恒异氰酸脂有限公司MDI 扩建项目工艺装置土建工程、Project Name ： Lian heng isocyanate resin co., LTD. Shanghai MDI expansion devices is civil

2、engineering工程地址：上海市漕泾化工区楚华路25 号Project Address: Shanghai caojing chemical OuChuHua road no. 25建设单位：上海联恒异氰酸脂有限公司The construction units: Shanghai lian heng isocyanate resin co., LTD设计单位：上海科元燃化工程设计有限公司Design unit: Shanghai yuan combustion engineering design co., LTD勘察单位：上海岩土工程勘察设计有限公司Prospecting units:

3、 Shanghai geotechnical engineering survey and design co., LTD施工单位：中国核工业中原建设有限公司Construction unit: China nuclear industry zhongyuan construction co., LTD监理单位：上东洋工程（上海）有限公司Supervision units: the Oriental engineering (Shanghai) co., LTD1.2 工程概况Project Overview：本工程位于上海市漕泾化工区楚华路25 号，上海巴斯夫聚氨酯有限公司内的A400地块上

4、。而上海联恒异氰酸脂有限公司MDI扩建项目工艺装置土建工程，由 MDI 合成单元、 MDI 初期雨水池、 MDA 初期雨水池、 MDA 处理单元、雨淋阀室和管架五大单元组成。This project is l ocated in Shanghai City Caojing Chemical District Chu Hua Road No. 25, Shanghai BASF Polyurethane Co. Ltd in A400 block. And Shanghai Lianheng ISO cyanate grease Co., Ltd. MDI expansion project p

5、rocess d evice for civil engineering. By synthesizing MDI unit, MDI early rain pool, MDA in the early rain pool, MDA treatment unit, the deluge valve chamber and tube frame five unit composed.1.3基坑概况 Foundation Ditch Overview：合成单元 Synthetic unit（ 1）光气隔离舱、 HCL 吸收及尾气处理的垫层底标高 -2.25m ，板底厚为 1200mm ，垫层厚 1

6、00mm ，建筑面积为 638.44m2 。本工程设计标高 100.000m 为 ±0.000所应对的绝对标高为吴淞标高+4.500m ，场地内部自然地面绝对标高约为+4.500m，即为相对标高± 0.000m,则开挖深度为2.25m 。其中，水池的垫层底标高-5.90m ，板厚为1000mm，垫层厚100mm，建筑面积为31.59 。本工程设计标高100.000m为±0.000所应对的绝对标高为吴淞标高+4.500m，场地内部自然地面绝对标高约为+4.500m ，即为相对标高±0.000m,则开挖深度为5.9m。(1) The phosgene com

7、partment, HCL absorption and tail gas treatment of cushion bottom elevation of 2.25 m, the bottom of the plate thickness is 1200 mm, cushion thickness of 100mm, with a construction area of 638.44 m squared. This engineering design elevation of100.000 m by 0.000 mm to cope with the absolute level of

8、wusong elevation + 4.500 m, fieldinsid e the natural ground elevation is about 4.500 m + absolutely, is the relative elevation + / -0.000 m, the excavation d epth of 2.25 m. Pool of cushion bottom elevation of 5.90 m, thethickness is 1000 mm, cushion thickness of 100 mm, with a construction area of

9、31.59 .This engineering d esign elevation of 100.000 m by 0.000 mm to cope with the absolute levelof wusong el evation + 4.500 m, field inside the natural ground elevation is about 4.500 m +absolutely, is the relative el evation + / - 0.000 m, the excavation depth of 5.9 m.（ 2）HCL 压缩机的垫层底标高 -1.18m ，

10、板厚为 1000mm ，垫层厚 100mm ，建筑面积为 127.02。本工程设计标高100.000m 为 ±0.000所应对的绝对标高为吴淞标高+4.500m ，场地内部自然地面绝对标高约为+4.500m ，即为相对标高 ±0.000m,则开挖深度为1.18m 。(2)HCL compressor cushion bottom elevation of 1.18 m, thickness is 1000 mm, cushionthickness of 100 mm, with a construction area of 127.02 . This engineering

11、 d esignelevation of 100.000 m by 0.000 mm to cope with the absolute level of wusong elevation +4.500 m, field insid e the natural ground elevation is about 4.500 m + absolutely, is the relativeelevation + / - 0.000 m, the excavation depth of 1.18 m.（ 3）氯苯冷却、氯苯精馏的承台垫层底标高-2.17m ，承台厚度1300mm，垫层厚度100mm；

12、地梁的梁顶标高-0.77m ，根据地梁的截面尺寸对梁底进行开挖，其垫层厚度100mm,建筑面积为：2861.71m2 。本工程设计标高100.000m为± 0.000所应对的绝对标高为吴淞标高+4.500m，场地内部自然地面绝对标高约为+4.500m ，即为相对标高±0.000m,则开挖深度为2.17m 。(3) the effects of cooling, chlorobenzene rectifying cap cushion bottom elevation of 2.17 m, the thickness of the pil e caps is 1300 mm,

13、 cushion thickness 100 mm; Ground beam beam top el evation of 0.77 m, the base beam to the excavation of the bottom of the beam, the section size of the cushion thickness is 100 mm, with a construction area offor: 2861.71 m squared. This engineering d esign elevation of 100.000 m by 0.000 mm to cope

14、 with the absolute level of wusong elevation + 4.500 m, field insid e the natural ground elevation is about 4.500 m + absolutely, is the relative elevation + / - 0.000 m, the excavation d epth of 2.17 m.初期雨水池Early rain poolMDI 初期雨水池的垫层底标高 -3m ，板厚为 500mm ，垫层厚 100mm ，建筑面积为 64.89 。本工程设计标高 100.000m 为 &#

15、177;0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然地面绝对标高约为+4.500m ，即为相对标高 ±0.000m,则开挖深度为3m 。其积水坑的垫层底标高 -3.45m ，板厚为 500mm ，垫层厚 100mm ，建筑面积为6.25 。本工程设计标高 100.000m 为 ±0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然地面绝对标高约为 +4.500m ，即为相对标高 ±0.000m,则开挖深度为 3.45m 。MDIrain early cushion pond bottom elevation -3m, a t

16、hickness of 500mm, cushionthick 100mm, construction area of 64.89 . The engineering d esign elevation 100.000maddressed by an absolute elevation± 0.000 Wusong elevation + 4.500m, natural floor spaceinsid e the absolute elevation of about + 4.500m, is the relative elevation±0.000excavation

17、d epth of 3m. Its water pit bottom cushion elevation -3.45m, a thickness of 500mm,cushion thick 100mm,construction area of 6.25. The engineering d esign elevation100.000m ad dressed by an absolute elevation ± 0.000 Wusong elevation + 4.500m, natural floor space insid e the absolute elevation of

18、 about + 4.500m, is the relative elevation the excavation d epth is 3.45m.合成单元 Synthesis unit（ 1）合成单元的承台垫层底标高-2.10m ，承台厚度1200mm ，垫层厚度100mm ；地梁的梁顶标高-0.80m ，根据地梁的断面尺寸对梁底进行开挖，其垫层厚度100mm；排水沟的垫层底标高为-0.85m ，根据图纸的设计要求，底板厚度150-450mm，建筑面积为：2861.71m2 。本工程设计标高 100.000m 为 ± 0.000所应对的绝对标高为吴淞标高+4.500m ，场地内部自

19、然地面绝对标高约为+4.500m ，即为相对标高 ±0.000m,则开挖深度为2.10m 。(1) Synthesis units el evation -2.10m, caps thickness 1200mm, cushion thickness 100mm; top el evation beam to beam -0.80m, cross-sectional dimensions of the beam at the end of the beam base excavation, the mat thickness of 100mm; cushion bottom elev

20、ationdrains -0.85m, according to the d esign requirements of the drawings, floor thickness150-450mm, construction area: 2861.71m2. The engineering d esign elevation 100.000maddressed by an absolute elevation± 0.000 Wusong elevation + 4.500m, natural floor spaceinsid e the absolute elevation of

21、about + 4.500m, is the relative elevation±0.000excavation depth is 2.10m.（ 2）二级冷却水系统、蒸汽吸收系统的承台垫层底标高-1.81m ，承台厚度1000mm，垫层厚度 100mm ；地梁的梁顶标高-0.71m ，根据地梁的断面尺寸对梁底进行开挖，垫层厚度 100mm ；排水沟的垫层底标高为 -0.76m ，根据图纸的设计要求， 底板厚度 300-500mm ，建筑面积为： 661.20m2 。本工程设计标高 100.000m 为±0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然

22、地面绝对标高约为 +4.500m ，即为相对标高 ±0.000m,则开挖深度为 1.81m 。(2) Bottom cushion caps secondary cooling water systems, vapor absorption system level -1.81m, caps thickness 1000mm, cushion thickness 100mm; Beams Beams topelevation -0.71m, cross-sectional dimensions of the beam to beam Base excavation bottom,cu

23、shion thickness 100mm; cushion bottom elevation drains -0.76m, according to the d esign requirements of the drawings, floor thickness 300-500mm, construction area: 661.20m2 . Theengineering d esign elevation 100.000m ad dressed by an absolute elevation ± elevation + 4.500m, natural floor space

24、inside the absolute elevation of about + 4.500m, is the0.000 Wusongrelative elevation± 0.000m, the excavation depth is 1.81m.初期雨水池Early rain poolMDA 初期雨水池的垫层底标高 -2.95m ，板厚为 500mm ，垫层厚 100mm ，建筑面积为 32.34 。本工程设计标高 100.000m 为± 0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然地面绝对标高约为 +4.500m ，即为相对标高 ±0

25、.000m,则开挖深度为 2.95m 。其积水坑的垫层底标高 -3.45m ，板厚为 500mm ，垫层厚 100mm ，建筑面积为 6.50 。本工程设计标高 100.000m 为±0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然地面绝对标高约为 +4.500m ，即为相对标高 ±0.000m,则开挖深度为 3.45m 。MDArain early cushion pond bottom elevation -2.95m, a thickness of 500mm, cushionthick 100mm, construction area of 32

26、.34 . The engineering d esign elevation 100.000maddressed by an absolute elevation± 0.000 Wusong elevation + 4.500m, natural floor spaceinsid e the absolute elevation of about + 4.500m, is the relative elevation±0.000excavation depth is 2.95m. Its water pit bottom cushion elevation -3.45m,

27、 a thickness of500mm, cushion thick 100mm, construction area of 6.50 . The engineering d esignelevation 100.000m ad dressed by an absolute elevation± 0.000 Wusong elevation + 4.500m,natural floor space insid e the absolute elevation of about + 4.500m, is the relative elevation 0.000m, the excav

28、ation d epth is 3.45m.雨淋阀室 Deluge valve chamber雨淋阀室的垫层底标高 -1.30m ，板厚为 400mm ，垫层厚 100mm ，建筑面积为 29.25 。本工程设计标高 100.000m 为 ±0.000所应对的绝对标高为吴淞标高 +4.500m ，场地内部自然地面绝对标高约为 +4.500m ，即为相对标高 ±0.000m,则开挖深度为 1.30m 。 Cushion deluge valve chamber bottom elevation -1.30m, a thickness of 400mm, cushion thick100mm, construction area of 29.25. Th