1.0.1 This code is formulated with a view to meet the requirement of high quality, advanced technology, economy and rationality as well as safety and usability in the waterproofing design and construction of underground works.
1.0.2 This code is applicable to the waterproofing design and construction of underground works, such as underground works of industrial and civil buildings, protection projects, municipal tunnel, mountain and underwater tunnel, underground railway, highway tunnel and so on.
1.0.3 The waterproofing design and construction of underground works shall follow the principle of "Combining waterproofing, drainage and blocking together, being flexible and rigid, adjusting measures to local conditions and administering comprehensively".
1.0.4 The waterproofing design and construction of underground works shall meet the requirement of environmental protection and take corresponding measures.
1.0.5 The waterproofing of underground works shall adopt new material, technology and technique with reliable quality, which have been tested, detected, identified and verified in practice.
1.0.6 The waterproofing design and construction of underground works shall comply with not only the requirements stipulated in this code, but also those in the current relevant ones of the nation.
1 General provisions 1
2 Terms 1
3 Waterproofing design of underground works 3
3.1 General requirement 3
3.2 Waterproof grade 4
3.3 Design requirement for waterproofing 5
4 Concrete main structure waterproofing of underground works 6
4.1 Waterproof concrete 6
4.2 The waterproof layer of cement mortar 12
4.3 Sheet waterproof layer 14
4.4 Coating waterproof layer 21
4.5 Waterproof layer of waterproof plastic sheet 24
4.6 Waterproof metallic layer 26
4.7 Waterproof layer of waterproof bentonite material 27
4.8 Planting topplate waterproofing of underground works 29
5 Concrete detail constitution waterproofing of underground works 31
5.1 Movement joint 31
5.2 Later-cast band 36
5.3 Wall-through pipe (box) 39
5.4 Embedded parts 41
5.5 Reserved passage joint 41
5.6 Pile head 43
5.7 Aperture 43
5.8 Pit and pool 44
8 Special Construction Structure Waterproof 54
8.1 Shield Tunnel 54
8.2 Caisson 57
8.3 Continuous concrete wall 58
8.4 Reverse structure 60
8.5 Shot concrete and rock bolt support 61
9 Underground works leakage water treatment 61
9.1 General policy conditions 61
9.2 Project design 62
9.3 Treatment materials 63
9.4 Construction 63
10 Other provisions 63
Annex A Safety and environment protection 64
Explanation of Wording in this Specification 65
Annex: Article Instruction 68
