《玻璃纤维增强复合材料筋基坑工程应用技术规程》.pdf

ICS

CCSP10/14

32

江苏省地方标准

DBXX/TXXXX—XXXX

玻璃纤维增强复合材料筋

基坑工程应用技术规程

Technicalspecificationforexcavation

engineeringapplicationofGFRPbar

（报批稿）

2023-XX-XX发布2023-XX-XX实施

江苏省市场监督管理局江苏省住房和城乡建设厅  发布

DBXX/TXXXX—XXXX

目次

前言III

1范围1

2规范性引用文件1

3术语和定义1

4基本规定3

5材料5

5.1混凝土5

5.2GFRP筋6

5.3钢筋7

6设计与计算8

6.1结构计算8

6.2地下连续墙设计8

6.3排桩设计9

6.4冠梁、腰梁设计10

6.5锚杆设计12

6.6土钉设计13

6.7构造要求18

7施工20

7.1一般规定20

7.2地下连续墙的施工20

7.3灌注桩的施工20

7.4冠梁、腰梁的施工21

7.5锚杆施工21

7.6土钉施工21

8检测与监测22

8.1检测22

8.2监测23

附录A（规范性）锚杆抗拔试验要点24

A.1一般规定24

A.2基本试验24

A.3蠕变试验25

A.4验收试验25

附录B（规范性）土钉抗拔试验要点27

附录C（规范性）GFRP筋进场检验项目和方法29

附录D（规范性）GFRP筋连接性能测试方法31

I

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图1理论直线滑动面13

图2土钉墙整体稳定性验算····························································································14

图3基坑底面下有软土层的土钉墙隆起稳定性验算·····························································15

图4土钉抗拔承载力计算·······························································································17

图5GFRP箍筋弯折的构造要求·······················································································18

图D.1GFRP筋连接试样示意图·······················································································31

表1支护结构的安全等级及结构重