DE913403C - Process and device for lining shafts, mines, galleries and tunnels - Google Patents

Description

Method and device for lining manholes, mine workings, Tunnels and tunnels In pressurized mountain layers, shafts and sometimes Wells also built in tubbings or lined with bricks or artificial stone or clad in concrete or reinforced concrete. A combination of these types of expansion is often used used as a composite extension. The strength of the shaft walls and the concreting increases with the depth and requires, among other things, large excavation work.

Mine workings, tunnels and tunnels are usually made of wood or steel removed, the joints warped with wood or iron or sheet metal or synthetic plates, or in brick or artificial stone or in concrete or reinforced concrete disguised. Composite expansion is also used here. A lining is also known of tunnels with stone-like building materials in order to create a smooth pipe and their subsequent spraying with concrete. All these types of expansion take up space, so that the opening width is much larger than the usable clear width. this again causes greater rock pressure and greater excavation costs. When driving in three-dimensional layers, these slowly flow on all sides into those that have just been created Cavity into it. Sandy layers and slate are pushed off. In these and In other cases, too, it is necessary to remove the route and shaft walls quickly and completely disguise to prevent this.

The metal spray technology, which has been developed for over 40 years, makes it possible already greater achievements. The sprayed-on steels or metals have pressure, Flexibility and adhesive strengths that are generally hardly inferior to their casting. This injected Surfacing cling to the roughened workpieces, i.e. also to the on rough rock fracture surfaces, so that a good connection is given. -Man can therefore also be made of steel or metal on most route and shaft walls spray on and, if the application is sufficiently strong, the pit or shaft lining substitute. Moist impacts must first be dried with a gas flame or otherwise. The cross-section of routes and shafts increases particularly shortly after the excavation something off. This will reduce the initial shrinkage of the spray on cooling balanced so that the bond between the rock and the spray remains. Of the constant rock pressure causes a further compression, which is basically favorable and is harmless because spray metals can withstand pressure loads well.

The invention consists in that the walls of the mine workings, Tunnels or tunnels or the joints of the shafts or wells instead of the previous ones Types of expansion or? partially flat steel or metal spraying obtained. This one is so strong to apply that it can withstand the pressure of the mountains. The joints of the routes and shafts can also be roughened beforehand or according to the type of reinforced concrete at the joints Adjoining steel inserts received, and these can be injected at the same time. the Joints are to be dried before spraying, the shaft walls are in freezer shafts to thaw and dry. Metal spraying is of course free from firedamp bound. The support and fastening devices for the shaft and route facilities are to be anchored accordingly in the walls or ili the iron inserts and then to inject. This spray lining can now be used exclusively or in conjunction with the known types of expansion as composite or auxiliary expansion or only to seal and repair the known types of expansion application. In the end The spray-ons can then be post-treated thermally, chemically or electrically are, whereby this surface ennobled, hardened and «-etter- and; waterproof made «- can be earthed.

This makes it possible to encounter certain difficulties that would otherwise arise during expansion Line the preparatory parts of shafts, mine workings, galleries and tunnels in an advantageous manner.

Claims (1)

PATENT CLAIMS: i. Process for lining manholes. Mine workings, tunnels and tunnels, characterized in that instead of the previous types of construction, a closed or partially flat steel or metal or plastic injection is applied to the walls of the shafts, mine workings, tunnels and tunnels, which are additionally roughened if necessary, with the exception of the concrete . Lining according to claim i, characterized in that the walls of the shafts, pits, tunnels and tunnels have steel or iron or metal inlays resting against the joints instead of the previous type of construction, which, if necessary, anchored in the walls, in those to be applied to the walls Spray are included. 3. Lining according to one of claims i and 2, characterized in that the supporting and fastening devices for the interior fittings of the shafts, pits, tunnels and tunnels are anchored in the walls or on the inserts and are 'co-injected. 4. Lining according to one of claims i, and 3, characterized by this type of lining in connection with known types of construction as composite or auxiliary construction or for mending and sealing known types of construction. 5. Lining according to one of claims i, 2, 3 and -., Characterized by a surface, weather and water-proof aftertreatment.