内容简介
DBJ/T 15-191-2020 备案号J15227-2020既有建筑地基基础检测鉴定技术规范
Technical specification for inspection and identification of foundations of existing buildings
（预览版）
2020-10-01 实施
2020-07-04 发布
目 次
1 总则..........................................................................................................................1
2 术语和符号..............................................................................................................2
2.1 术语.................................................................................................................2
2.2 符号.................................................................................................................2
3 基本规定..................................................................................................................3
4 勘察..........................................................................................................................7
4.1 一般规定.........................................................................................................7
4.2 勘探与测试.....................................................................................................7
4.3 勘察成果报告.................................................................................................8
5 地基检测................................................................................................................10
5.1 一般规定.......................................................................................................10
5.2 天然地基检测...............................................................................................12
5.3 处理土地基检测...........................................................................................12
5.4 复合地基检测...............................................................................................13
6 浅基础检测............................................................................................................15
6.1 一般规定.......................................................................................................15
6.2 基础现状调查...............................................................................................15
6.3 钢筋探测.......................................................................................................16
6.4 基础混凝土强度检测...................................................................................16
7 基桩检测................................................................................................................18
7.1 一般规定.......................................................................................................18
7.2 既有建筑基桩静载法...................................................................................19
7.3 既有建筑物基桩钻芯法...............................................................................21
7.4 既有建筑基桩旁孔透射法...........................................................................21
7.5 既有建筑基桩低应变法...............................................................................25
7.6 既有建筑基桩磁测井法...............................................................................27
8 加固基础检测........................................................................................................29
8.1 一般规定.......................................................................................................29
8.2 扩大基础.......................................................................................................29
8.3 新增微型桩...................................................................................................29
8.4 地基注浆加固...............................................................................................29
9 变形监测................................................................................................................31
9.1 一般规定.......................................................................................................31
9.2 沉降监测.......................................................................................................31
9.3 水平位移监测...............................................................................................32
9.4 裂缝监测.......................................................................................................33
9.5 深层水平位移监测.......................................................................................33
9.6 土体分层沉降监测.......................................................................................34
9.7 地下水位监测...............................................................................................35
9.8 振动监测.......................................................................................................35
10 地基基础鉴定......................................................................................................36
10.1 一般规定.....................................................................................................37
10.2 地基基础鉴定.............................................................................................37
10.3 评定方法和分级标准.................................................................................38
10.4 地基基础安全性评级.................................................................................39
本规范用词说明..........................................................................................................41
引用标准名录..............................................................................................................42
条文说明......................................................................................................................43