TB 10181-2017 PDF English
US$685.00 · In stock · Download in 9 secondsTB 10181-2017: Technical Specification for Shield Tunneling for Railway Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
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Technical Specification for Shield Tunneling for Railway
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TB 10181-2017: Technical Specification for Shield Tunneling for Railway---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TB10181-2017
Technical Specification for Shield Tunneling for Railway
Issued on October 18,2018
Issued by National Railway Administration of the People’s Republic of China
1 General provisions
1.0.1 This Specification is prepared with to unifying the technical standards of survey,
design, construction and acceptance of shield railway tunnels, and making the shield tunnel comply
with the requirements of safety, reliability, advanced and proven technology, environmental protection, economical efficiency and reasonability.
1.0.2 This Specification is applicable to the survey, design, construction and acceptance of
railway tunnel constructed by shield method.
1.0.3 Priority should be given to shield method when urban railway tunnel or underwater railway
tunnel is to be built.
1.0.4 The technical plan for the design of shield railway tunnel and the selection of shield type shall
be determined according to the geology and landform of the site, the ecological environment, the energy supply condition and the equipment transportation condition etc. and by comparison.
1.0.5 Risk assessment focusing on environmental influence and construction safety shall be carried
out in the design and construction of shield railway tunnel.
1.0.6 In the process of shield tunneling, the boring parameters shall be adjusted and the attitude of
the shield shall be controlled according to the geological conditions and monitoring data to realize the dynamic management throughout the whole process.
1.0.7 Technologies such as geology forecast and pre-reinforcement should be used in shield tunneling.
When new technology, new techniques, new material and new equipment are used, relevant national and industry standards shall be complied with.
1.0.8 During shield tunneling, the technical document of the project such as construction record,
quality test report, inspection and acceptance record shall be filled out in time.
1.0.9 In addition to this Specification, the survey, design, construction and acceptance of shield
railway tunnel shall also comply with relevant current national and industry standards.
2 Terms
2.0.1 Shield
The mechatronics equipment consisting of a main machine and back-up equipment, used for
boring, segment erection and muck discharging under the protection of a steel shell.
2.0.2 Working shaft
The shaft used for assembly and disassembly of shield-turn of shield, shield advancing without
load, hoisting and transporting of segments, removal of muck, etc. including shield launching shaft,
shield arrival shaft, shield inspection shaft, etc.
2.0.3 Shield launching
The process to start the shield tunneling.
2.0, 4 Shield arrival
The process for the shield to reach the arrival position.
2.0.5 Reaction frame
The supporting structure which provides reaction force for shield launching and boring.
2.0.6 Segment
A basic unit of the pre-cast segment ring, having different types such
segment, fiber-reinforced concrete segment, steel segment, cast-iron segment, composite segment, etc.
2.0.7 Temporary segment ring
A provisional segment ring used for transmitting the thrust force for the purpose of shield
launching.
2.0.8 Sealing gasket
A kind of waterproofing strip used to seal the joints between segments.
2.0.9 Back-fill grouting
Grouting for the annular space between the segment ring and the ground.
2.0.10 Shield attitude
The spatial state of shield, usually indicated by transverse deviation, vertical deviation, pitch
angle, azimuth angle, roll angle, position of cutting face, etc.
2.0.11 Cutter head
The assembly of steel structure and cutting tools, installed at the front end of the shield,
connected with the switch stand of the main bearing, and used for full-face excavation by way of
rotating or other motions.
3 Basic Requirements
3.1 Survey
3.1.1 The geological survey for shield tunneling shall be carried out by stages corresponding to the
pre-feasibility study stage, feasibility study stage, preliminary design stage, construction drawing
design stage and construction stage.
3.1.2 During every stage of survey for shield tunneling, the geological data shall be provided for the
corresponding design stages and construction stage according to the characteristics of shield
method. The impact of construction activities on the surrounding environment shall be evaluated and predicted.
3.1.3 In terms of geological survey for shield tunneling, proper survey methods and workload shall
be reasonably determined based on summarizing the experiences from the survey, design and
construction of previous tunnels. Necessary geological data shall be acquired to meet the requirements of the design and
3* 1, 4 The geological survey of shield tunnel shall be carried out in the following working procedure.
geological investigation and mapping, exploration, testing, experiment, comprehensive geological
analysis, survey report preparation, etc. The survey items shall be determined according to the regional characteristics, survey stages full and complete information, reliable data, sufficient evidences and reasonable suggestions.
3.1.5 If the strata through which the shield tunnel passes or the surrounding environment has significant impact on the design and construction of the project, specialized survey or research shall be carried out.
3.2 Design
3.2.1 The design service life of the main structure of the shield tunnel shall be 100 years, and the
be replaced during the service period without affecting the design service life of the structure that
functions of the tunnel shall be 60 years.
3.2.2 The shield tunnel structure may be designed by the limit state method；the load-bearing
capacity limit state and the serviceability limit state shall be calculated respectively in the design.
3.2.3 The inner contour of the tunnel should be circular, and the inner diameter of the tunnel shall
be determined according to such factors as the structure clearance, space requirements of device and pipeline installation ,design speed, type of the track bed, location of auxiliary building (or structure) , space for maintenance and future reinforcement ,comprehensive construction errors, etc.
3.2.4 The single-layer pre-cast lining structure should be used for the shield tunnel, and the
secondary lining may be built if necessary.
3.2.5 The waterproofing design of the shield tunnel for high-speed railways shall comply with Level
I waterproofing standard of underground works, and the waterproofing design for the shield tunnel
for other railways shall comply with Level 11 waterproofing standard of underground works.
3.2.6 Auxiliary structures of the tunnel shall be arranged according to the structural characteristics
of the shield tunnel.
3.3 Construction
3.3.1 During shield tunneling, the assurance system for safety, quality and environment shall be
established according to the construction plan design and construction conditions
requirements of energy efficiency, environmental protection and civilized construction.
3.3.2 During shield tunneling, the quality of segment erection and backfill grouting, as well as the
quality of the floor of the tunnel, etc. shall be tested, and the testing results shall be included in the
project completion documents.
3.3.3 During shield tunneling, waterproofing and drainage shall be done according to the design and
the environmental protection requirements.
3.3.4 During shield tunneling, relevant survey methods shall be adopted according to the requirements of the through error to ensure that the centerline, elevation and segment erection accuracy of the tunnel comply with the design requirements.
3.3.5 The construction site shall be laid out reasonably and shall be provided with a complete range
of main facilities. The interference between the facilities shall be minimized.
3.3.6 Trial boring shall be made, and the boring parameters shall be adjusted and determined
according to the trail boring data.
3.3.7 During shield tunneling, first-hand data and information shall be collected constantly and
construction records shall be made.
3.4 Acceptance of Works
3.4.1 The quality of the tunnel shall meet the design requirements of the structural safety, durability
and operational functions, and the quality of the main structure shall comply with the requirements of normal operation within the design service life.
3.4.2 Advanced, proven and reasonable inspection and testing methods shall be adopted for the
acceptance of the works. The data shall be real and reliable, and can fully reflect the works quality. All the methods and equipment used for the acceptance shall comply with the provisions specified in
relevant standards, and the accuracy of the equipment shall meet the requirements of quality control.
3.4.3 Raw materials, semi-finished products and finished products shall be subject to acceptance
after being delivered to the construction site. Segments and waterproofing materials shall be regarded the finished products and shall be subject to acceptance after being delivered to the construction site, During the acceptance on site. the quality certification, performance check report, user specification, import commodity inspection report and other supporting documents for each batch of the product shall be checked. And random recheck shall be carried out according to the provisions specified in relevant standards. The product shall not be used until it is proven to be qualified.
3.4.4 The technology management documents such as the quality test report, the inspection and acceptance record, etc. shall comply with the provisions specified in relevant industry standards. And the acceptance documents shall be filed.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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