DB11/T 1726-2020 市政基础设施岩土工程勘察规范

北京市地方标准

编号：DB11/T1726—2020

市政基础设施岩土工程勘察规范

Codeofgeotechnicalinvestigationformunicipalinfrastructureprojects

2020-03-31发布2020-10-01实施

北京市规划和自然资源委员会

联合发布

北京市市场监督管理局

北京市地方标准

市政基础设施岩土工程勘察规范

Codeofgeotechnicalinvestigationformunicipalinfrastructureprojects

DB11/T1726—2020

主编单位：北京市勘察设计研究院有限公司

批准部门：北京市规划和自然资源委员会

北京市市场监督管理局

实施日期：2020年10月01日

2020北京

前言

根据原北京市规划和国土资源管理委员会关于《北京市“十三五”时期北京市城

乡规划标准化工作规划》和原北京市质量技术监督局《关于印发2018年北京市地方

标准制修订项目计划的通知》（京质监发[2018]20号）的通知要求，规范编制组在深

入调查研究、认真总结现有工程经验及广泛征求有关单位和专家意见的基础上，制订

了本规范。

本规范共计13个主干部分的内容和相关的附录组成，主要技术内容有：1、总则；

2、术语和符号；3、基本规定；4、岩土分类；5、可行性研究勘察；6、初步勘察；

7、详细勘察；8、工法勘察；9、地下水；10、场地、地基的地震效应；11、工程周

边环境专项调查；12、岩土参数统计与地基承载力；13、勘察报告。

本规范由北京市规划和自然资源委员会负责管理，由北京市勘察设计研究院有限

公司负责具体技术内容的解释。在执行本规范过程中如有意见或建议，请寄至主编单

位北京市勘察设计研究院有限公司（北京市海淀区羊坊店路15号北勘公司勘B楼404

室，邮政编码：100038；E-mail：gk63986221@163.com），以便修编时参考。

主编单位：北京市勘察设计研究院有限公司

参编单位：北京市市政工程设计研究总院有限公司

中航勘察设计研究院有限公司

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

中兵勘察设计研究院有限公司

北京市水利规划设计研究院

北京市园林古建设计研究院有限公司

北京市公联公路联络线有限责任公司

北京城市副中心投资建设集团有限公司

北京城市排水集团有限责任公司

主要起草人：周宏磊、侯东利、王笃礼、李立、陈爱新、高文新、吕建强、周载阳、

杨建生、李根义、张琦伟、马秉务、刘长青、朱辉云、王瑞永、王军辉、倪伟、吝西

锋、杨良权、何萌、李珊

主要审查人：武威、化建新、丁建平、叶超、陈刚、温靖、张建青

目次

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.............................................................................................................................................4

4岩土分类.............................................................................................................................................7

5可行性研究勘察.............................................................................................................................12

5.1一般规定...................................................................................................................................12

5.2勘察要求...................................................................................................................................12

6初步勘察...........................................................................................................................................14

6.1一般规定...................................................................................................................................14

6.2道路工程...................................................................................................................................14

6.3桥涵工程...................................................................................................................................15

6.4隧道工程...................................................................................................................................16

6.5综合管廊工程...........................................................................................................................17

6.6室外管道工程...........................................................................................................................18

6.7给排水厂站工程.......................................................................................................................19

6.8城市绿地工程...........................................................................................................................19

6.9生活垃圾填埋场工程...............................................................................................................20

6.10堤岸工程.................................................................................................................................22

7详细勘察...........................................................................................................................................24

7.1一般规定...................................................................................................................................24

7.2道路工程...................................................................................................................................24

7.3桥涵工程...................................................................................................................................26

7.4隧道工程...................................................................................................................................28

7.5综合管廊工程...........................................................................................................................30

7.6室外管道工程...........................................................................................................................31

7.7给排水厂站工程.......................................................................................................................32

7.8城市绿地工程...........................................................................................................................34

7.9生活垃圾填埋场工程...............................................................................................................35

7.10堤岸工程.................................................................................................................................37

8工法勘察...........................................................................................................................................40

8.1一般规定...................................................................................................................................40

8.2明挖法.......................................................................................................................................40

8.3暗挖法.......................................................................................................................................41

8.4顶管法及定向钻法...................................................................................................................43

9地下水................................................................................................................................................45

9.1一般规定...................................................................................................................................45

9.2水文地质参数测定...................................................................................................................45

9.3地下水评价...............................................................................................................................47

1

10场地、地基的地震效应..............................................................................................................49

10.1一般规定.................................................................................................................................49

10.2勘察要求.................................................................................................................................49

10.3抗震评价.................................................................................................................................50

11工程周边环境专项调查..............................................................................................................54

11.1一般规定.................................................................................................................................54

11.2调查要求.................................................................................................................................54

11.3成果资料.................................................................................................................................55

12岩土参数统计与地基承载力....................................................................................................56

12.1岩土参数统计分析.................................................................................................................56

12.2地基承载力.............................................................................................................................57

13勘察报告.........................................................................................................................................61

附录A岩土试验项目.......................................................................................................................63

附录B岩石分类................................................................................................................................64

附录C碎石土的密实度..................................................................................................................65

附录D孔隙水压力测定方法和适用条件..................................................................................66

本规范用词说明....................................................................................................................................67

引用标准名录.........................................................................................................................................68

附：条文说明.........................................................................................................................................69

2

CONTENTS

1GeneralProvisions.............................................................................................................................1

2TermsandSymbols...........................................................................................................................2

2.1Terms...............................................................................................................................................2

2.2Symbols...........................................................................................................................................3

3BasicRequirements...........................................................................................................................4

4ClassificationandTypesoftheSoilsandRocks.........................................................................7

5FeasibilityStudyInvestigation......................................................................................................12

5.1GeneralRequirements...................................................................................................................12

5.2InvestigationRequirements...........................................................................................................12

6PreliminaryInvestigation...............................................................................................................14

6.1GeneralRequirements...................................................................................................................14

6.2RoadEngineering..........................................................................................................................14

6.3BridgeandCulvertEngineering....................................................................................................15

6.4TunnelEngineering........................................................................................................................16

6.5UtilityTunnelEngineering............................................................................................................17

6.6OutdoorPipelineEngineering.......................................................................................................18

6.7WaterSupplyandDrainageFacilitiesEngineering.......................................................................19

6.8UrbanGreenSpaceEngineering....................................................................................................19

6.9DomesticWasteLandfillEngineering...........................................................................................20

6.10WaterfrontEmbankmentEngineering.........................................................................................22

7DetailedInvestigation.....................................................................................................................24

7.1GeneralRequirements...................................................................................................................24

7.2RoadEngineering..........................................................................................................................24

7.3BridgeandCulvertEngineering....................................................................................................26

7.4TunnelEngineering........................................................................................................................28

7.5UtilityTunnelEngineering............................................................................................................30

7.6OutdoorPipelineEngineering.......................................................................................................31

7.7WaterSupplyandDrainageFacilitiesEngineering.......................................................................33

7.8UrbanGreenSpaceEngineering....................................................................................................34

7.9DomesticWasteLandfillEngineering...........................................................................................35

7.10WaterfrontEmbankmentEngineering.........................................................................................37

8GeotechnicalInvestigationsforConstructionMethods...........................................................40

8.1GeneralRequirements...................................................................................................................40

8.2CutandCoverMethod...................................................................................................................40

8.3SubsurfaceExcavationMethod.....................................................................................................41

8.4Pipe-pushingandDirectionalDrillingMethod..............................................................................43

9Groundwater.....................................................................................................................................45

9.1GeneralRequirements.................................................................................................................45

9.2MensurementofHydro-GeologicalParameters............................................................................45

9.3EvaluationofGroundwater............................................................................................................47

10SeismicEffectoftheSiteandFoundation...............................................................................49

3

10.1GeneralRequirements..................................................................................................................49

10.2InvestigationRequirements.........................................................................................................49

10.3SeismicEvaluation......................................................................................................................50

11SpecialInvestigationofofEngineeringSurrounding............................................................54

11.1GeneralRequirements..................................................................................................................54

11.2InvestigationRequirements.........................................................................................................54

11.3AchievementDate........................................................................................................................55

12GeotechnicalParametersStatisticsandFoundationBearingCapacity..............................56

12.1StatisticalAnalysisofGeotechnicalParameters..........................................................................56

12.2FoundationBearingCapacity......................................................................................................57

13GeotechnicalInvestigationReport.............................................................................................61

AppendixARockandSoilTestsRequired....................................................................................63

AppendixBGeotechnicalClassificationofRocks......................................................................64

AppendixCDensityofGallets........................................................................................................65

AppendixDDeterminingMethodandapplicatingconditionforPorewaterPressure........66

ExplanationofWordingsinThisCode..............................................................................................67

ListofQuotedStandards.......................................................................................................................68

Addition:ExplanationofProvisions...................................................................................................69

4

1总则

1.0.1为落实国家高质量发展与提高城市精细化管理水平的要求，做到安全适用、技

术先进、经济合理、保护环境、确保质量，制定本规范。

1.0.2本规范适用于北京市行政区域内城镇的道路、桥涵、隧道、综合管廊、室外管

道、给排水厂站、城市绿地、生活垃圾填埋场和堤岸等市政基础设施工程的岩土工程

勘察。

1.0.3市政基础设施工程应按基本建设程序进行岩土工程勘察。勘察工作应广泛搜

集、分析、利用已有资料和建设经验，针对市政基础设施工程特点、任务要求、岩土

条件和环境条件，精心勘察，提出资料完整、评价正确的勘察报告。

1.0.4市政基础设施工程勘察，除应满足本规范的规定外，尚应符合国家及北京市现

行有关标准的规定。

1

2术语和符号

2.1术语

2.1.1综合管廊utilitytunnel

建于城市地下用于容纳两类及以上城市工程管线的构筑物及附属设施。

2.1.2室外管道outdoorpipeline

室外敷设的给水、雨水、污水、再生水、天然气、热力、电力、通讯等地下管路

设施（不含工业管线）。

2.1.3给排水厂站watersupplyanddrainagefacilities

给水和排水系统的附属建（构）筑物的统称。

2.1.4城市绿地urbangreenspace

在城市行政区域内以自然植被、人工植被和水系、人工湿地为主要存在形态的用

地，包括城市建设用地内用于绿化的土地，以及城市建设用地之外的生态保护、游憩

休闲和社会文化等