128574 ⎘
underground or underwater structures Independent ; Retaining walls; Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
Apparatus and Methods for Underground Structures and Construction Thereof
#2METHOD FOR ALTERNATELY CONSTRUCTING UNDERGROUND VERTICAL MEMBERS USING TOP-DOWN CONSTRUCTION METHOD
#3METHOD FOR CONSTRUCTING STRUCTURE
#4LIGHTWEIGHT VAULT COVER
#5Apparatus and methods for underground structures and construction thereof
#6TOP-TO-BOTTOM CONSTRUCTION SYSTEM
#7Lightweight vault cover
#8Apparatus and methods for underground structures and construction thereof
#9Apparatus and methods for underground structures and construction thereof
#10Method and apparatus for forming tunnels and tunnels formed thereby
#11Method for building structures, particularly passages under operating railways or the like
#12Undercut excavation method with continuous concrete floors
#13Formation of Underground Constructions
#14Apparatus and methods for underground structures and construction thereof
#15Method of building a structure in the presence of water
#16System for creating underground structures
#17Methods for constructing underground structures
#18Method for constructing foundation