TB 10001-2016: Code for design of railway earth structure

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Scope

1.0.1 This code is formulated to unify the technical standards for railway
subgrade design, make the subgrade design meets the requirements of safety,
reliability, advanced technology, economic rationality.
1.0.2 This code is applicable to the design of standard gauge subgrades for
high-speed railways, intercity railways, passenger-freight level I and level II
railways, heavy-duty railways.
1.0.3 The subgrade project shall be designed according to the geotechnical
structure, to ensure that it meets the requirements of strength, stability and
durability; meets the relevant requirements of environmental protection, soil and
water conservation, cultural relic protection, etc.
1.0.4 The subgrade engineering shall, through geological mapping,
comprehensive exploration, testing and analysis, ascertain the geotechnical
structure and physical and mechanical properties of the subgrade base, cutting
slope, retaining structure foundation, etc., as well as the nature and distribution
of the filler. Perform design based on reliable geological data.
1.0.5 The subgrade engineering design should avoid high filling, deep
excavation, long cutting; avoid areas with adverse geological conditions. In the
comparison and selection of subgrade, bridge, tunnel engineering, it shall make
comprehensive analysis in terms of technical conditions, construction
conditions, land occupation, possible environmental and social impacts, urban
construction planning, construction investment, operation and maintenance
costs, to determine the type of project.
1.0.6 The railway train’s load shall be determined according to railway
transportation characteristics, mobile equipment, design speed, etc. High-
speed railway should adopt ZK load diagram. Intercity railway should adopt ZC
load diagram. Passenger-freight railways should adopt ZKH load diagram.
Heavy-load railway should use ZH load diagram. When the characteristics of
passenger-freight railway meet the standards of heavy-duty railways, it shall
use the ZH load diagram.
1.0.7 The design of subgrade engineering shall be based on railway grade,
subgrade structure, and other factors; according to local conditions, reasonably
select engineering materials. Meanwhile it shall meet the application conditions
and use requirements of subgrade engineering. Subgrade fillers shall be
surveyed and designed as engineering materials, to reasonably determine the
earthwork allocation plan.
1.0.8 Subgrade engineering’s design shall consider the transition between
subgrade and bridges, lateral structures, tunnels, and other subgrades of
different structures.
1.0.9 The foundation treatment measures for the subgrade project shall be
determined according to the railway grade, geological conditions,
environmental requirements, embankment height, filler, construction period, etc.
Meanwhile it shall meet the requirements of the stability of the subgrade and
post-construction settlement.
1.0.10 The subgrade’s retaining structure shall be designed according to the
geological conditions, track loads, train loads, whilst considering the effects of
natural factors such as atmospheric precipitation, groundwater, surrounding
environment.
1.0.11 The subgrade project shall have complete, systematic and unobstructed
drainage facilities, which shall be reasonably connected with railway bridges
and culverts, tunnels, stations and local drainage systems.
1.0.12 The structure of the catenary support foundation, sound barrier
foundation, cable trough, cross-rail pipeline, comprehensive grounding
provided on the roadbed shall be designed synchronously and constructed in a
coordinated manner with the subgrade engineering, to ensure the integrity and
stability of the subgrade.
1.0.13 Subgrade engineering shall promote the use of safe and reliable new
technologies, new structures, new materials, new processes.
1.0.14 The land used for subgrade shall comply with the national construction
land policy and relevant regulations, implement the principle of land
conservation; meet the requirements of stability of subgrade, drainage facilities
and protection fences.
1.0.15 In addition to this code, the design of railway subgrades shall also
comply with the relevant national standards.

Basic Data

Standard ID	TB 10001-2016 (TB10001-2016)
Description (Translated English)	Code for design of railway earth structure
Sector / Industry	Railway and Train Industry Standard
Classification of Chinese Standard	P65
Classification of International Standard	93.100
Word Count Estimation	146,157
Date of Issue	2016-12-20
Date of Implementation	2017-04-01
Older Standard (superseded by this standard)	TB 10001-2005
Regulation (derived from)	State-Railway-Technology-Regulation (2016) No.50
Issuing agency(ies)	National Railway Administration