公开(公告)号：DE69308415D1

公开(公告)日：1997-04-10

申请号：DE69308415

申请日：1993-07-22

Applicant: BOUYGUES SA

Inventor： PHAM XUAN-THAO

IPC: E02D5/40 ,  E02D27/52

公开(公告)号：SK44196A3

公开(公告)日：1996-11-06

申请号：SK44196

申请日：1996-04-03

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： BERTONCINI ANDRE ,  DUGAT JEROME ,  FROUIN LAURENT ,  JAQUIER JEAN-LUC ,  PRAT EVELYNE

IPC: B05B7/02 ,  B28B1/32 ,  B28C7/04 ,  C04B14/04 ,  E04F13/02 ,  C04B22/06 ,  C04B22/08 ,  C04B22/14 ,  C04B28/02 ,  C04B40/00 ,  E04G21/02 ,  C04B14/06

Abstract: Concrete or mortar is sprayed onto a surface by adding an aqueous suspension of silica, and an aluminium cpd. selected from aluminium sulphate, basic aluminium sulphate, alkali metal aluminium sulphate or their mixts.. The suspension has a pH of less than 4, and contains 10-50 wt.% dry material. After storing for 48 hrs., it forms a gel which can be converted back into a suspension by mild stirring.

公开(公告)号：FR2718778B1

公开(公告)日：1996-07-12

申请号：FR9404455

申请日：1994-04-14

Applicant: BOUYGUES SA

Inventor： BARD JEAN

IPC: E04G19/00 ,  E04G17/00 ,  E04G11/06

公开(公告)号：FR2683066B1

公开(公告)日：1996-07-12

申请号：FR9113125

申请日：1991-10-23

Applicant: BOUYGUES SA

Inventor： ARISTAGHES PIERRE

IPC: G08G1/09 ,  G09F19/22 ,  G08B5/36 ,  E01F9/10 ,  G03H1/00

公开(公告)号：DE69209334D1

公开(公告)日：1996-05-02

申请号：DE69209334

申请日：1992-01-29

Applicant: BOUYGUES SA

Inventor： DACHET JACQUELINE

IPC: C09K17/00 ,  C04B28/02 ,  C09K17/02 ,  C09K17/10 ,  C09K17/12 ,  C09K103/00 ,  E02D3/12

公开(公告)号：FR2725225A1

公开(公告)日：1996-04-05

申请号：FR9411784

申请日：1994-10-03

Applicant: BOUYGUES SA

Inventor： MOREAU YVES

IPC: E04B5/00 ,  E04B5/43 ,  E04G23/02

Abstract: The concrete floor structure comprises a lower plate (1) and an upper plate (5) in reinforced concrete. These plates are separated by a retractor (4), constituted by an insulating layer, which maintains a gap between the two plates. Each plate has a lower flexural resistance than the floor must be able to support. The two plates are connected together , in the regions where the floor is supported, by independent fastenings (6). These prevent relative sliding of the two plates so that the floor assembly has a sufficient flexure resistance. The lower plate has a thickness of the order of 10 - 20 cm and the upper plate has a thickness of the order of 5 - 15 cm. The spacing between the two plates is of the order of 3 - 15 cm. The insulating layer constitutes a water sealing layer and/or a sound insulation layer and/or a thermal insulation layer.

公开(公告)号：NO955359D0

公开(公告)日：1995-12-29

申请号：NO955359

申请日：1995-12-29

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE EMILIE FELIX ,  ROUX NICOLAS PIERRE JEAN ,  CHEYREZY MARCEL HUBERT

IPC: C04B14/48 ,  C04B20/00 ,  C04B28/02 ,  C04B28/04 ,  C04B40/02 ,  E04C5/01 ,  C04B

Abstract: A metal fiber concrete composition for molding a concrete element, the composition being essentially constituted by a Portland cement, granular elements, fine elements for pozzolan reaction, metal fibers, a dispersing agent, optionally other additives, and water. The preponderant granular elements have a maximum grain size D of not more than 800 micrometers. The preponderant metal fibers have individual lengths 1 lying in the range 4 mm to 20 mm. The ratio R of the mean length L of the fibers divided by said maximum size D of the granular elements is not less than 10. The amount of preponderant metal fibers is such that the volume of preponderant metal fibers lies in the range 1.0% to 4% of the volume of the concrete after setting.

公开(公告)号：FR2711180A1

公开(公告)日：1995-04-21

申请号：FR9312276

申请日：1993-10-15

Applicant: BOUYGUES SA

Inventor： ALAIN LE PIVERT

IPC: B23D57/02 ,  B28D1/08 ,  E21D9/10

Abstract: The invention relates to a cutting tool. This tool includes a support (1, 2) which carries, with a capacity for rotating on themselves, two elongated and planar chains (6, 7), the links of which are provided with cutting teeth, the two chains rotating in mutually opposite directions at the same speed and being arranged in such a way that there is a longitudinal intermediate space (8) between them, where all the teeth of the two chains move in the direction of the tool. The invention applies in particular to producing the vault or the preliminary vault of a tunnel (gallery).

公开(公告)号：FR2711179A1

公开(公告)日：1995-04-21

申请号：FR9312275

申请日：1993-10-15

Applicant: BOUYGUES SA

Inventor： ALAIN LE PIVERT

IPC: E21D9/10 ,  E21D9/14

Abstract: The invention relates to a method for excavation by successive cuts, using a cutting tool, in particular for producing a vault or a preliminary vault by filling cuts with sprayed concrete. Each cut is made by longitudinal penetration of the cutting tool, followed by extraction of this tool, so as to produce non-contiguous cuts (S1 to S7) separated by terrain intervals having a width less than the width of the action zone of the cutting tool, these cuts are filled with sprayed concrete, complementary cuts (S2 to S6) are subsequently made in the said intervals by trimming the surface of the concrete in the cuts already filled, and the complementary cuts are filled with concrete. The invention applies to producing cuts in a vertical or inclined excavation front.

公开(公告)号：DE69107696D1

公开(公告)日：1995-04-06

申请号：DE69107696

申请日：1991-06-13

Applicant: BOUYGUES SA

Inventor： LONGCHAMP PIERRE

IPC: E02D5/18 ,  E02D9/00