Regulation 10A

plans of any tunnelling support system;

plans of any excavation and earth retaining structures;

plans of the foundation;

instrumentation and monitoring plans.

be in accordance with the provisions of the Act and these Regulations and any other requirement of the Commissioner of Building Control;

be signed and endorsed, or be accompanied by an endorsement signed, by the qualified person who prepared the plans and calculations, and by the appropriate accredited checker;

bear a certificate by the qualified person who prepared the plans on the first and last sheets of the calculations stating that, to the best of his knowledge and belief, the design calculations have been prepared in accordance with these Regulations and that he is the person who prepared the design calculations, or be accompanied by such a certificate;

state in the certificate of the qualified person referred to in sub-paragraph (c) the number of pages per book and a numbering of every page in the book;

be accompanied by an Information Sheet giving a summary of the key design and construction information including, where applicable, load conditions, codes of practice, assumptions, earth-retaining system, tunnel support system, foundation system, and other information relevant to the design and construction in question;

be accompanied by an impact assessment report on neighbouring structures and a site investigation report;

be accompanied by a geotechnical report which shall contain —

a summary to highlight the key elements of the design and the issues addressed;

evaluation and interpretation of existing information and investigation and monitoring results;

assessment of geotechnical parameters and groundwater conditions;

geotechnical assumptions, analysis, design and calculations;

geotechnical requirements relating to the design and construction of the geotechnical building works including testing, validating, controlling, inspecting and monitoring;

geotechnical reviews; and

any other details as the Commissioner of Building Control may require; and

be accompanied by such other reports as the Commissioner of Building Control may require.

layout, sections and details of all excavation and tunnel support works showing —

subsurface information including plan showing layout of investigation boreholes and subsurface profile along each tunnel axis;

maximum depth, and extent of excavation at each stage including heading, bench and invert;

face pressure and other key performance indicators for ensuring stability of tunnel during construction;

location of planned stoppages and necessary ground improvement and monitoring details; and

profile and the nature of the site and its surrounds including ground topography, neighbouring structures, subsurface geological and geotechnical data, and groundwater conditions;

layout, sections, details and material specifications of tunnel support elements and structures, tunnel face support system and overall tunnel support system and other structural elements showing types, sizes and material specifications of members to be used and the connection details;

layout, sections and details of earth or ground strengthening, improvement or protection works including layout, sections and sizes of all elements, material specifications, details of inspections and tests to be carried out;

method and sequence of construction including duration and spatial limits of critical activities;

details of inspections and tests to be carried out;

details of any special precautions, groundwater control measures, control and protective measures required during excavation, installation and removal of any tunnel support element;

other specifications and relevant particulars; and

such other details as the Commissioner of Building Control may require.

layout, sections and details of all excavation and earth retaining works showing —

subsurface information including plan showing layout of investigation boreholes and surface profile along and across the excavation boundary;

maximum depth, and extent of excavation at each stage; and

profile and the nature of the site and its surrounds including ground topography, neighbouring structures, subsurface geological and geotechnical data, and groundwater conditions;

layout, sections, details and material specifications of earth retaining elements and structures, wall elevation showing the wall founding depth or penetration depth or minimum wall embedment requirement, and overall retaining system;

layout, sections and details of struts, anchors, soil nails, walers, king posts, bracings, corbels and other structural elements showing types, sizes and material specifications of members to be used, connection details, and where appropriate, inspections and tests to be carried out;

layout and sections of earth berms or slope showing type of soils, size and location of berms, internal and external drainage provisions and protection measures including against surface weathering;

layout, sections and details of earth or ground strengthening, improvement or protection works including layout, sections and sizes of all elements, material specifications, details of inspections and tests to be carried out;

layout, sections and details of permanent support system to the earth retaining system showing details of lateral bracing element, and connection details;

method and sequence of construction including duration and spatial limits of critical activities;

details of inspections and tests to be carried out;

details of any special precautions, groundwater control measures, control and protective measures required during excavation, and installation and removal of any earth retaining element;

other specifications and relevant particulars; and

such other details as the Commissioner of Building Control may require.

the layout, sections and details of all foundation works showing —

types of piles or foundation and specification of material to be used;

location of piles or foundation and site investigation boreholes;

pile or foundation founding depth or pile minimum embedment into competent stratum for each pile or foundation;

unit shaft friction, pile base resistance or foundation bearing pressure;

allowable foundation capacity before and after accounting for negative skin friction where applicable, allowable tension, and lateral load;

details of pile reinforcements, pile joints, connection with pilecap, pile shops;

allowable total and differential foundation movement; and

allowable vibration limit; and

the number, type of pile or foundation tests, structural integrity tests and location of preliminary test pile or ultimate load tests and site investigation for the tests.

layout and location of neighbouring structures in relation to the geotechnical building works;

numbers, types, locations, details and other particulars of instruments for monitoring forces and movement of structural elements, building and ground movements, and variations in the groundwater or piezometric levels;

frequency and duration of monitoring;

allowable ground or building movement limits;

allowable vibration limits;

where applicable, long-term instrumentation, monitoring and maintenance requirements;

other specifications and relevant particulars; and

such other details as the Commissioner of Building Control may require.