ICS93.020 CCSP22DB42 湖北省地方标准 DB42/T2154—2023 基坑倾斜桩支护技术规程 Codeofpracticeforinclinedretainingpilesofexcavationsengineering 2023-12-23发布 2024-04-23实施 湖北省住房和城乡建设厅 湖北省市场监督管理局联合发布 DB42/T2154—2023 I目次 前言.................................................................................III 引言...................................................................................V 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4符号................................................................................2 4.1作用和作用效应、抗力、材料性能..................................................2 4.2几何参数........................................................................2 4.3计算系数........................................................................3 5基本规定............................................................................3 6设计................................................................................4 6.1一般规定........................................................................4 6.2勘察与环境调查要求..............................................................4 6.3结构选型........................................................................5 6.4水平作用荷载....................................................................6 6.5结构分析........................................................................8 6.6稳定性验算.....................................................................12 6.7构造要求.......................................................................17 6.8止水帷幕与桩间加固.............................................................18 7施工质量控制.......................................................................18 7.1一般规定.......................................................................18 7.2预制桩施工.....................................................................18 7.3灌注桩施工.....................................................................20 7.4土方开挖.......................................................................21 7.5施工质量验收...................................................................22 8监测...............................................................................23 8.1一般规定.......................................................................23 8.2支护桩监测.....................................................................23 条文说明..............................................................................25