MTR Corporation LimitedKwun Tong Line Extension Contract No. NEX/2207 Environmental Impact Assessment

Figure:

Scale:NTS

Rev:

OVERVIEW OF TUNNEL CONSTRUCTION METHODS (2)3.15

Legend:

Envisaged Tunnelling Method

By Drill & Blast

Envisaged Soft Ground

Tunnelling Method

Envisaged Tunnelling Method

By Mechanical Excavation

SOFT GROUND

TUNNELLING

METHOD

SOFT GROUND

TUNNELLING

METHOD

TUNNELLING

METHOD BY

DRILL & BLAST

TUNNELLING

METHOD BY

DRILL & BLAST

WHA STATION -

CUT AND COVER

METHOD

HOM STATION -

CUT-AND-COVER

AND BLASTING

METHOD

HOM STATION -

PLATFORM BY

DRILL AND BLAST

METHOD

TUNNELLING

METHOD BY

DRILL & BLAST

MINED

TUNNELLING