Voussoir for a lining, and method for constructing the lining
AssigneePont-A-Mousson S.A.
InventorJacques Francois Oger
Life of this patent
Estimating the term…
Abstract
Method for constructing a bore lining comprising pre-assembling in the factory voussoirs into a panel in a jig having the required outside dimensions for the panel by means of a connecting material which fills the gaps between the voussoirs. Each panel has at least two voussoirs which are juxtaposed in at least one of circumferential and axial directions of the panel. The pre-assembled panels are then transferred to the construction site and laid directly in the bore so as to form the lining. A voussoir for the panel and a jig for assembling the voussoirs into a panel are described.
Claims15
A method for constructing a bore lining from elementary voussoirs comprising pre-assembling the voussoirs into panels in the factory by means of a voussoir connecting material interposed between the voussoirs and capable of maintaining the voussoirs assembled, each one of the panels comprising at least two voussoirs which are in adjacent relation and interconnected by said connecting material in at least one of circumferential and axial directions and, after transfer of the panels to the construction site, directly laying the pre-assembled panels in the bore so as to form the lining, the pre-assembly of said two voussoirs comprising starting with two voussoirs whose lengths in said one direction are such that if the two voussoirs were put in direct contact with each other in said one direction the outside dimension of the two contacting voussoirs would be less than the desired outside dimension of the panel, placing said two voussoirs in adjacent relation in said one direction in a jig comprising two opposed bearing means which are capable of defining the desired outside dimension for the panel in said one direction, said two voussoirs being brought into contact with said bearing means and the panel being brought to the desired outside dimension in said one direction by interposition of voussoir-separating means between said two voussoirs so as to urge said two voussoirs in said one direction against said two bearing means, and interposing said connecting material in a gap formed between said two voussoirs thus urged against said two bearing means.
A voussoir for assembling with other voussoirs to form a lining, comprising a web having the general shape of a portion of a cylinder, a rectangular frame having walls integral with the web and substantially perpendicular to the web, a pair of said walls being parallel walls extending circumferentially of said cylinder and a pair of said walls being parallel walls extending axially of said cylinder, a first groove which is provided in at least one wall of each of said parallel pairs of said walls of the frame and is substantially parallel to said cylinder for receiving connecting material which is also a filling material for interconnecting the voussoirs, and a substantially radially extending second groove which is provided in each of the walls provided with the first groove and puts an outer edge of the wall remote from the web in communication with the first groove.
A method for constructing a bore lining from elementary voussoirs comprising pre-assembling the voussoirs into panels in the factory by means of a voussoir connecting material interposed between the voussoirs and capable of maintaining the voussoirs assembled, each one of the panels comprising at least two voussoirs which are in adjacent relation and interconnected by said connecting material in at least one circumferential and axial directions and, after transfer of the panels to the construction site, directly laying the pre-assembled panels in the bore so as to form the lining, the pre-assembly of said two voussoirs comprising starting with two voussoirs whose lengths in said one direction are such that if the two voussoirs were put in direct contact with each other in said one direction, the outside dimension of the two contacting voussoirs would be less than the desired outside dimension of the panel, placing the two voussoirs in adjacent relation in said one direction in a jig comprising two opposed bearing means which are capable of defining the desired outside dimension of the panel in said one direction, and producing, with the aid of means interposed between the two voussoirs and capable of urging the two voussoirs apart such distance that said outside dimension exceeds said desired outside dimension, a relative movement between the two voussoirs and said two bearing means in said one direction so as to apply the two voussoirs against said two bearing means when said two bearing means define said desired outside dimension, said connecting material being interposed between the two voussoirs.
A method for constructing a bore lining from elementary voussoirs comprising pre-assembling the voussoirs into panels in the factory by means of a voussoir connecting material interposed between the voussoirs and capable of maintaining the voussoirs assembled, each one of the panels comprising at least two voussoirs which are in adjacent relation and interconnected by said connecting material in at least one of circumferential and axial directions and, after transfer of the panels to the construction site, directly laying the pre-assembled panels in the bore so as to form the lining, the pre-assembly of said two voussoirs comprising starting with two voussoirs whose lengths in said one direction are such that if the two voussoirs were put in direct contact with each other in said one direction, the outside dimension of the two contacting voussoirs would be less than the desired outside dimension of the panel, placing the two voussoirs in adjacent relation in said one direction in a jig comprising two opposed bearing means which are relatively movable to a position for defining the desired outside dimension for the panel in said one direction, relatively moving said two bearing means to said position for defining said desired outside dimension for the panel, interposing between the two voussoirs voussoir-separating means to urge the voussoirs against the two bearing means in said position of the bearing means and interposing said connecting material in a gap formed between the two voussoirs upon application of the voussoirs against the bearing means.
Dependencies are inferred from the claim text.