大型建筑工程基坑及相邻建筑物监测方案.pdf

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1、1。大厦工程基坑及相邻建筑物第三方监测方案 工程检测咨询有限公司 年 8 月 12 日1目录1、工程概况.1 1.1 工程名称.1 1.2 基坑概况.1 1.3 地质概况.1 1.4 周边环境状况.3 1.5 监测的目的和意义.3 2 监测依据.4 3、监测内容与监测点布置.5 3.1 基坑内容和监测点布置.5 3.2 相邻建筑物监测内容和监测点布置.6 3.3 隧道监测内容和监测点布置.6 3.4 监测数量与方法.2 4、监测频率与报警.2 4.1 监测频率.2 4.2 报警.3 5、监测量控的报表.4 5.1 预警报告.4 5.2 周报表.4 5.3 月报表.4 5.4 总报告.4 6、监

2、测关键技术与实施方案.4 6.1 监测基准网建立.4 6.2 地面沉降与管线沉降.5 6.3 深层水平位移监测.6 文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA

3、10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4

4、R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档

5、编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6

6、A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H

7、7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA

8、1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M326.4 土压力与锚杆应力监测.7 6.5 洞内收敛

9、变形监测.8 6.6 拱顶下沉与仰拱高程.9 7 项目组成机构与人员.10 8 安全、进度、质量保证措施.11 8.1 质量保证措施.11 8.2 进度保证措施.11 8.3 环境保护措施.12 8.4 安全生产保证措施.12 9 拟在本项目使用的主要监测仪器、设备一览表.13 10 单位资质.14 10.1单位概况.错误！未定义书签。10.2营业执照.错误！未定义书签。10.3 资质证明材料.错误！未定义书签。10.4 计量认证 CMA.错误！未定义书签。文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3

10、G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA1

11、0J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R

12、2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编

13、码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A

14、10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7

15、L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1

16、G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M31。大厦工程基坑及相邻建筑物监测方案1、工程概况1.1 工程名称工程名称：。大厦工程深基坑、轻轨隧道、朝天门隧道监测工程地址：重庆 1.2 基坑概况重庆。？有限公司（下称建设方或甲方)拟在重庆市 修建。大厦项目。本项目北面紧邻 广场项目，南面临重庆 商业交易市场区域，东侧为陕西路,西侧为 路,是具有得天独

17、厚的繁华商业成熟地段。项目地块呈不规则“U”字形，场地高程南北向由南向北逐渐降低，南面为场地最高点，绝对标高约为244.0m，开挖深度约为 49m；北侧为场地最低点，绝对标高约为 222.0m，开挖深度约为 27m；东侧最低点为陕西路，高程约222.0227.0m 不等，开挖深度为2936m；西侧沿新华路最高点高程约为237.0m，最低点标高约为 224.0m，开挖深度从 33 米至 39m不等。本次边坡支护为场地西南范围(范围详见总平面图)，其中除西南侧 227.0 以上环境边坡为边坡外，其余为临时边坡。永久边坡设计使用年限50 年(本期工程按建筑与地铁采取共建方案，轨道线从建筑体内架空结构

18、中穿过，不存在轨道洞室的保护与支护问题），临时边坡设计使用年限2 年。1.3 地质概况1.3.1.基坑边坡 AC 该段地形较平坦，坡角一般小于10，局部经人工改造成陡坎，上覆土层主要为卵石土。平场后第四系土层厚度04.0m，局部较厚，约 5m。卵石土多呈稍密中密状，下伏基岩主要为泥岩，夹（泥质）砂岩和粉砂岩。该段边坡开挖文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8

19、H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 H

20、A1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8

21、Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 Z

22、A10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F

23、4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文

24、档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH

25、6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M32后，将形成长度约 93.1m，高约 30m的岩质边坡，局部为岩土混合边坡，倾向 289，边坡安全等级为一级。典型剖面可见45 剖面。由赤平投影分析知：岩层产状外倾，可能产生顺层滑动，经地勘所做稳定性分析，边坡稳定性系数为0.97，边坡不稳定，需要进行支护。设计采用逆作法并跳槽施工钢筋混凝土桩板锚杆挡墙支护。1.3.2 基坑边坡 CD 该段基坑开挖后，将形成长度约61.1m，高约 30m的岩质边坡，边坡岩性主要为泥岩和（泥质）砂岩，夹少量粉砂

26、岩。倾向196，边坡安全等级为一级。由赤平投影分析可知：边坡岩层产状及裂隙L2 的交线倾向与边坡同向，夹角约41 o，裂隙与岩层层间结构面组合形成的块体对边坡稳定性影响小。基坑边坡距金海洋商城最近点9 米。本工程基坑开抗后，金海洋商城位于边坡的破裂角之外，对金海洋商城城的影响较小。典型剖面可见1314 剖面。设计采用逆作法并跳槽施工钢筋混凝土桩板锚杆挡墙支护。1.3.3 基坑边坡 DG 该段地形较平坦，坡角一般小于15，上覆土层主要为第四系杂填土和卵石土。平场后第四系土层厚度04.0m，局部为 4.4m。杂填土多呈松散稍密状，卵石土多呈稍密中密状，下伏基岩主要为泥质砂岩、泥岩和砂岩。该段基坑开

27、挖后，将形成长度约 62.2m，高约 31m的岩质边坡，局部为土质边坡，倾向 285，边坡安全等级为一级。该段边坡岩土界面倾角22 度，开挖后会产生岩土界面滑动，经地勘所做稳定性分析，稳定性系数为1.22，边坡基本稳定，需要进行支护。典型剖面可见68 剖面。设计采用逆作法并跳槽施工钢筋混凝土桩板锚杆挡墙支护。1.3.4边坡 HS 该段地形较平坦，坡角一般小于15，上覆土层主要为第四系杂填土和卵石土。平场后第四系土层厚度04m，局部土层为 4.4m，杂填土多呈松散稍密状，卵石土多呈稍密中密状，下伏基岩主要为泥质砂岩、泥岩和砂岩。该段基文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 Z

28、A10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F

29、4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文

30、档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH

31、6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8

32、H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 H

33、A1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8

34、Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M33坑开挖后，将形成长度约123.8m，高约 50m的岩质边坡，局部有少量岩土混合边坡，倾向 19，边坡安全等级为一级。典型剖面可见9、10、13 和 14 剖面。由赤平投影分析可知：边坡裂隙L2 外倾，可能产生顺层滑动。经地勘所做

35、稳定性分析，稳定性系数为0.58（计算时已考虑基坑边坡以上的环境边坡），边坡不稳定，需要进行支护。边坡主要分为两个台阶，标高227.00 以下为临时基坑边坡，采用桩板锚杆挡墙进行支护；标高227.00 以上为永久边坡，采用桩板锚杆挡墙进行支护。1.3.5 基坑边坡 NW 该段按设计方案开挖后，将形成约 41m的岩质边坡，边坡岩性主要为泥质砂岩和泥岩。倾向 111，边坡安全等级为一级。典型剖面可见 4、5、7 和 8 剖面。由赤平投影分析可知：边坡裂隙L1及 L2 的交线倾向与边坡同向，夹角约22 o，组合面倾角约 61 o，易产生楔形体滑动。由计算知边坡稳定性系数为1.095，边坡基本稳定，需

36、要进行支护。设计采用逆作法并跳槽施工钢筋混凝土桩板锚杆挡墙支护。1.3.6基坑边坡 WA 为岩土质边坡，表层土清除后，岩质边坡按 1:0.75 放坡并用 40 厚 M25砂浆封闭封闭处理。1.4 周边环境状况拟建成。大厦工程基坑，基坑项目位于本工程所在地，是繁华商业成熟地段。西侧为正在修建的轻轨一号线隧道，其右线部分轻轨隧道穿越本工程建筑用地，且高程高于本基坑的基底高程，因此，需要对已建成右线隧道进行拆除处理，在基坑完成后进行恢复。南侧与建成的朝天门隧道相距13.86m，且基坑基底高程低于朝天门隧道高程。1.5 监测的目的和意义文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA1

37、0J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R

38、2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编

39、码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A

40、10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7

41、L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1

42、G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3

43、G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M34本项目基坑是高达50m 的深基坑，周边建筑物较多，且与两座隧道相邻，因此，基坑施工对不仅对基坑本身而且对周边建筑物都有影响。通过基坑及周边建筑物的监测，掌握在施工过程中地层和结构整体稳定性情况以及对周围环境的影响程度，为业主、设计、

44、施工、监理等提供及时、可靠的信息，用以评价通道工程在施工期间复合衬砌支护结构体系的力学状态及支护体系对地层基础缺陷加固稳定效果。基坑开挖过程中，由于地质条件、荷载条件、材料性质、施工条件和外界其它因素的复杂影响，很难单纯从理论上预测工程中可能遇到的问题，而且，理论预测值还不能全面而准确地反映工程的各种变化。所以，在理论指导下有计划地进行现场工程监测十分必要。特别是对于类似本工程复杂的、规模较大的工程，就必须在施工组织设计中制定和实施周密的监测计划。本工程监测的目的主要有：（1）通过将监测数据与预测值作比较，判断上一步施工工艺和施工参数是否符合或达到预期要求，同时实现对下一步的施工工艺和施工进度

45、控制，从而切实实现信息化施工；（2）通过监测及时发现围护施工过程中的环境变形发展趋势，及时反馈信息，达到有效控制施工对建(构)筑物、道路、管线影响的目的；（3）通过监测及时调整支撑系统的受力均衡问题，使得整个基坑开挖过程能始终处于安全、可控的范畴内；（4）通过监测及早发现基坑安全稳定的问题，并提请施工单位进行及时、有效的预防措施工作，防止施工中发生失稳现象；（5）将现场监测结果反馈设计单位，使设计能根据现场工况发展，进一步优化方案，达到优质安全、经济合理、施工快捷的目的；（6）通过跟踪监测，在换撑和支撑拆除阶段，施工科学有序，保障基坑和隧道施工始终处于安全运行的状态。2 监测依据本次监测计划方

46、案编写依据：。大厦工程基坑总平面图、围护结构平面图、设计单位、施工单位、业主对于施工监测的要求。本次监测计划方案执行标准：文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6

47、 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J

48、9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M

49、3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:

50、CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10G8H7L5 HA1G4P8Z3G6 ZA10J9F4R2M3文档编码:CH6A10