PDF《UDC》

4 支挡式结构.15 4.1 结构分析.15 4.2 稳定性验算.18 4.3 排桩设计.23 4.4 排桩施工与检测.24 4.5 地下连续墙设计.25 4.6 地下连续墙施工与检测.26 4.7 锚杆设计.27 4.8 锚杆施工与检测.30 4.9 内支撑结构设计.32 4.10 内支撑结构施工与检测.35 4.11 支护结构与主体结构的结合及逆作法.35 4.12 双排桩设计.39

5 土钉墙.42 5.1 稳定性验算.42 5.2 土钉承载力计算.44 5.3 构造.46 5.4 施工与检测.48

6 重力式水泥土墙.50 6.1 稳定性与承载力验算.50 6.2 构造.52 6.3 施工与检测.53

7 地下水控制.54 7.1 一般规定.54 7.2 截水.54 7.3 降水.56 7.4 集水明排.62 7.5 降水引起的地层变形计算.63

8 基坑开挖与监测.64 8.1 基坑开挖.64 8.2 基坑监测.64

5 附录A 圆形截面混凝土支护桩的正截面受弯承载力计算.68 附录B 锚杆抗拔试验要点.70 B.1 一般规定.70 B.2 基本试验.70 B.3 蠕变试验.71 B.4 验收试验.72 附录C 渗透稳定性验算.73 附录D 土钉抗拔试验要点.75 附录E 基坑涌水量计算

76 本规程用词说明.79 引用标准名录.80 附:条文说明.81

6 CONTENTS

1 General Provisions

1 2 Terms and Symbols

2 2.1 Terms

2 2.2 Symbols

3 3 Fundamental Requirements

6 3.1 Principles of Design

6 3.2 Investigation of Excavated Site and Surrounding Area

8 3.3 Choice of Structural Types

9 3.4 Horizontal Load

10 4 Retaining S tructures

15 4.1 Structural Analysis

15 4.2 Stability Analysis

18 4.3 Design of Soldier Pile Wall

23 4.4 Construction and Test of Soldier Pile Wall

24 4.5 Design of Diaphragm Wall

25 4.6 Construction and Testing of Diaphragm Wall

26 4.7 Design of Anchor

27 4.8 Construction and Test of Anchor

30 4.9 Design of Strut

32 4.10 Construction and Testing of Strut

35 4.11 Excavations Supported by Permanent Structure and Top-Down Method …… ……35 4.12 Design of Double-Row-Piles Wall

39 5 Soil S ailing Wall

42 5.1 Stability Analysis

42 5.2 Bearing Capacity Calculation of Soil Nail

44 5.3 Structural Details ofSoil Sailing Wall

46 5.4 Construction and Testing of Soil Sailing Wall

48 6 Gravity Cement-Soil Wall

50 6.1 Stability Analysis and Bearing Capacity

50 6.2 Structural Details ofGravity Cement-Soil Wall

52 6.3 Construction and Test of Gravity Cement-Soil Wall

53 7 Groundwater Control

54 7.1 General requirement…54 7.2 Cut-Off Drains

54 7.3 Dewatering

56 7.4 Drainage Galleries

62 7.5 Calculation of Ground Settlement due to Dewatering

63 8 Excavation and m onitoring

64 8.1 Excavation

64 8.2 Monitoring

64 Appendix A Flexural Capacity Calculation of R.C. Pile…68 Appendix B Kernel of Anchor Pull Out Test

70 B.1 General requirement

70 7 B.2 Basic Test

70 B.3 Creep Test

71 B.4 Verification Test

72 Appendix C Seepage Stability Analysis

73 Appendix D Kernel of Soil Nail Pull Out Test

75 Appendix E Simplified Calculation for Water Discharge in Excavation Pit …………………76 Explanation of Wording in This Code.79 List of Quoted Standards.80 Addtion: Explanation of Provisions

81 1

1 总则 1.0.1 为了在建筑基坑支护设计、施工中做到安全适用、保护环境、技术先进、经济合理、确 保质量,制定本规程. 1.0.2 本规程适用于一般地质条件下临时性建........