DB11-489-2016建筑基坑支护技术规程

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北京市地方标准

编号：DB11/489-2016

备案号：J13247-2016

建筑基坑支护技术规程

Technical specification for retaining and

protecting of building foundation excavation

2016-08-10 发布 2016-12-01 实施

北京市住房和城乡建设委员会

北京市质量技术监督局

联合发布

北京市地方标准

建筑基坑支护技术规程

Technical specification for retaining and protecting of

building foundation excavation

编号：DB11/489-2016

备案号：J13247-2016

北京市勘察设计研究院有限公

北京城建科技促进会

批准部门：北京市质量技术监督局

实施日期：2016 年12 月1日

2016 北京

关于发布北京市地方标准《建筑基坑支护

技术规程》的通知

京建发〔2016〕409 号

各区住房城乡建设委,各集团、总公司，各有关单位：

根据北京市质量技术监督局《关于印发 2014 年北京市地方标准

制修订项目计划的通知》（京质监标发〔2014〕36 号）的要求，由北

京城建科技促进会主编的《建筑基坑支护技术规程》已经北京市质

量技术监督局批准，北京市质量技术监督局、北京市住房和城乡建

设委员会共同发布，编号为 DB11/489-2016，代替《建筑基坑支护技

术规程》DB11/489-2007，自 2016 年12 月1日起实施。同意第 3.1.9

条、第 6.3.6 条、第 7.3.20 条、第 8.1.2 条、第 8.2.5 条作为强制性条

文，必须严格执行。

该标准由北京市住房和城乡建设委员会、北京市质量技术监督

局共同负责管理，由北京城建科技促进会负责解释工作。

特此通知。

北京市住房和城乡建设委员会

2016 年11 月29 日

关于同意北京市地方标准《建筑基坑支护

技术规程》备案的函

建标标备〔2016〕70 号

北京市住房和城乡建设委员会：

你委《关于北京市工程建设地方标准<建筑基坑支护技术规程>、

申请备案的函》（京建科标备便〔2015〕08 号），收悉。经研究，同

意该标准作为“中华人民共和国工程建设地方标准”备案，其备案

号为：J13247-2016。其中，同意第 3.1.9 条、第 6.3.6 条、第 7.3.20

条、第 8.1.2 条、第 8.2.5 条作为强制性条文。

该标准的备案号，将刊登在国家工程建设标准化信息网和近期

出版的《工程建设标准化》刊物上。

住房和城乡建设部标准定额司

2016 年4月6日

DB11/489-2016

前言

本规程为强制性标准，其中第 3.1.9，6.3.6，7.3.20，8.1.2，8.2.5

等条（款）为强制性条文，必须严格执行。

根据北京市质量技术监督局“关于印发 2014 年北京市地方标准

制修订项目计划的通知”（京质监标发〔2014〕36 号文）的要求，由

北京城建科技促进会组织有关单位在经广泛调查研究，认真总结工

程实践经验，参考有关标准，并广泛征求意见的基础上，对《建筑

基坑支护技术规程》（ DB11/489-2007）进行了全面修订。

本规程的主要技术内容是：总则、术语和符号、基本规定、放

坡、支挡式结构、土钉墙、地下水控制、基坑开挖、监测、附录A

基坑支护设计文件内容、附录 B锚杆钢腰梁按简支梁考虑时选型参

考表、附录 C渗透稳定性验算。其中附录 A~附录 C均为规范性附录。

本规程修订的主要技术内容是：对原规程中强制性条文第 3.1.2，

3.1.4，3.1.5（1）、（2）， 3.1.6，3.1.7，3.7.3，3.7.4，3.7.5，3.7.6，3.7.8，

3.7.13，6.3.6，6.4.2 等条（款）进行了条款的部分内容调整或条款号

调整；对第 3章勘察要求进行了修改；将原规程第 5章标题改为支

挡式结构，增加了双排桩的设计内容，并对其他节的内容进行了补

充；将原规程 3.7 节独立成章，作为第 8章；新增第 9章；删除了原

规程中附录 B、附录 C内容，新增加附录 B及附录 C内容。

本规程由北京市住房和城乡建设委员会和北京市质量技术监督

局共同负责管理，由北京市住房和城乡建设委员会归口并负责组织

实施。由北京城建科技促进会负责具体技术内容的解释。执行过程

中如有意见和建议，请寄送至北京城建科技促进会（地址：北京市

西城区广莲路 1号北京建工大厦 A座910 室；邮政编码：100055）

DB11/489-2016

本规程主编单位：中国建筑科学研究院

北京市勘察设计研究院有限公司

北京建华建材技术研究院有限公司

北京城建科技促进会

本规程参编单位：中航勘察设计研究院有限公司

中兵勘察设计研究院

北京航天勘察设计研究院有限公司

北京建材地质工程公司

北京建工集团有限责任公司

北京城建勘测设计研究院有限责任公司

建设综合勘察研究设计院有限公司

中基发展建设工程有限责任公司

中国新兴建筑工程总公司

中建二局第三建筑工程有限公司

北京市地质工程设计研究院

北京市地质工程公司

北京金水源岩土工程有限公司

北京中联勘工程技术有限责任公司

北京新创展基础工程有限公司

北京健安诚岩土工程有限公司

本规程主要起草人员：张雁沈小克杨斌周与诚

杨生贵孙保卫李虹

（以下以姓氏笔画为序）

马永琪习铁宏王笃礼王建明

王秀丽王晓辉化建新石健

闫德刚孙华波刘永勤齐如明

何世鸣张德萍张明中张微

张春和杨素春杨发兵邹登亮

DB11/489-2016

李钟李军李耀刚陈志辉

陈树军汪一帆金淮郑庆峰

赵杰伟徐教宇郭密文郭跃龙

秦沛聂畅通蒋新民熊宗喜

戴连双

本规程主要审查人员：肖绪文张建民任庆英张晋勋

刘军叶锋张钦喜

DB11/489-2016

1 总则 ··········································································· 1

2 术语和符号 ·································································· 2

2.1 术语 ······································································ 2

2.2 符号 ······································································ 3

3 基本规定 ····································································· 6

3.1 设计原则 ································································ 6

3.2 勘察要求 ······························································ 10

3.3 支护结构选型 ························································ 12

3.4 水平荷载 ······························································ 13

3.5 质量检测 ······························································ 20

4 放坡 ········································································· 21

4.1 放坡设计 ······························································ 21

4.2 放坡施工 ······························································ 21

4.3 质量检测 ······························································ 22

5 支挡式结构 ································································ 23

5.1 一般规定 ······························································ 23

5.2 结构分析 ······························································ 24

5.3 基坑稳定性验算 ····················································· 24

5.4 双排桩设计 ··························································· 30

5.5 截面承载力计算 ····················································· 32

5.6 锚杆计算 ······························································ 33

5.7 构造要求 ······························································ 37

5.8 施工 ···································································· 41

5.9 质量检测 ······························································ 45

DB11/489-2016

6 土钉墙 ······································································ 47

6.1 一般规定 ······························································ 47

6.2 设计 ···································································· 47

6.3 施工 ···································································· 56

6.4 质量检测 ······························································ 60

7 地下水控制 ································································ 61

7.1 一般规定 ······························································ 61

7.2 截水 ···································································· 62

7.3 降水 ···································································· 63

7.4 集水明排 ······························································ 72

7.5 回灌 ···································································· 73

8 基坑开挖 ··································································· 75

8.1 一般规定 ······························································ 75

8.2 开挖 ···································································· 75

8.3 地下水控制 ··························································· 76

8.4 封底及回填 ··························································· 76

9 监测 ········································································· 77

9.1 一般规定 ······························································ 77

9.2 监测项目 ······························································ 77

9.3 巡视检查 ······························································ 78

9.4 监测点布置 ··························································· 79

9.5 监测频率 ······························································ 81

9.6 监测报警 ······························································ 82

9.7 监测成果 ······························································ 84

附录 A 基坑支护设计文件内容 ·········································· 87

附录 B 锚杆钢腰梁按简支梁考虑时选型参考表 ····················· 92

附录 C 渗透稳定性验算 ··················································· 94

本规程用词说明······························································· 96

DB11/489-2016

引用标准名录 ································································· 97

条文说明 ······································································· 99

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摘要：

北京市地方标准编号：DB11/489-2016备案号：J13247-2016建筑基坑支护技术规程Technicalspecificationforretainingandprotectingofbuildingfoundationexcavation2016-08-10发布2016-12-01实施北京市住房和城乡建设委员会北京市质量技术监督局联合发布DB北京市地方标准建筑基坑支护技术规程Technicalspecificationforretainingandprotectingofbuildingfoundationexcavation编号：DB11/489-2016备案号：J13247-2...

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DB11-489-2016建筑基坑支护技术规程

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