RU2054503C1 - Method for developing underground construction - Google Patents

Abstract

FIELD: civil engineering, mining. SUBSTANCE: method includes laying down hollow structures on prepared base and filling with embankment. Laid down structures are connected to tanks developed as rock is poured off along embankment height. A number of formed tanks increases stability of dump ground and increases its capacity. The tanks are made of reinforced concrete or metal and interconnected with hollow structures. Additional units of tanks are used to develop tanks along height. EFFECT: increased stability of dump ground. 4 cl, 5 dwg

Description

 The invention relates to the mining industry and is intended to strengthen dumps of loose and dusty clay or other incoherent rocks, and can also be used to form storage facilities for various purposes.

 A known method of erecting an underground structure [1] comprising preparing the base, laying and assembling hollow structures from building modules and their subsequent backfilling. The known method is used for the construction of underground trays.

 The disadvantage of this method is that it cannot be used to strengthen the dumps, and also does not provide for the formation of storage facilities.

 There is also a known method of constructing storage facilities in subsidence soil [2], including fixing the soil, extracting trenches along the contour of the storage building and installing trenching structures in the trenches, excavating soil between them to create a storage facility and subsequently securing the soil after installing the building structures in the trench from the outside with the formation along the perimeter of the enclosing structures of a continuous layer of variable thickness, for example by injection.

 The disadvantage of this method is that the formation of such a store in the dump is impossible.

 The closest adopted for the prototype is the method [3] which includes the preparation of the base, laying of hollow structures from building modules and their subsequent filling.

 A disadvantage of the known technical solution is that it does not provide for the strengthening of the blade, and is also not intended for the formation of a storage facility for various purposes.

 The aim of the invention is the creation of a method of construction of an underground structure, providing an increase in the capacity of the blade in loose and silty clay or other incoherent rocks by increasing the stability of the blade.

 According to the patented method of erecting an underground structure, including preparing the foundation, laying hollow structures from building modules and then backfilling them, a distinctive feature is that the stacked structure is connected to containers, for example reinforced concrete or metal, which are built up along the dump during the dumping process.

 To use the containers as temporary storage, the lower part of each tank is made in the form of a funnel with gates. At the same time, the walls of the funnel are performed at an angle equal to the angle of repose of the bed of dumped rocks, in addition, this will reduce the impact of loads of dump rocks.

 To strengthen the walls of the tanks, stiffeners are installed in them and they are placed in the direction perpendicular to the front of the rock dumping, and the dumping is carried out simultaneously from both sides, on each tier.

 In FIG. 1 shows the phase of laying a hollow structure of building modules on a prepared base; in FIG. 2 phase of backfill of the laid structure with the waste rock; in FIG. 3 phase connection of the structure with the lower conical part of the tank; in FIG. 4 phase capacity building; in FIG. 5 phase of the installation of a number of tanks when dumping dump waste.

 The proposed method is as follows. On the prepared base 1 (Fig. 1), a hollow structure 2 of building modules is laid and from the side of the idle side they arrange access roads to it (not shown in the drawing), and in the process of dumping the dump 3, fill it with tiers 4 (Fig. 2) and fill it construction 2 waste rock. Upon reaching its upper mark, a structure 2 is connected to the lower conical part 6 by a funnel (Fig. 3). As backfill with the waste rock of the conical part 6, the upper, for example, cylindrical, part 7 of the tank 8 is also increased (Fig. 4). The capacity of 8 can be increased in blocks that are tightly interconnected, or you can make the capacity of 8 metal or reinforced concrete.

 Tanks 8 (Fig. 5) are installed along the blade, and filling them or their blocks is carried out in the process of dumping the blade. The formed row of containers 8 increases the stability of the blade 9, composed of loose dusty clay rocks, which will increase the capacity of the blade 9.

 The formed containers 8 can be used as temporary storage. In this case, the lower part of the funnel is equipped with gates (not shown in the drawing).

To reduce the impact of the loads on the funnel from the pressure of the dump rocks, the walls of the funnel are performed with a slope at an angle α equal to the angle α ₁ (Fig. 3) of the natural slope of the tier of the dumped rocks.

 To strengthen the walls of the tanks 8, stiffeners 10 are installed in them with their direction perpendicular to the front of the bed of rocks, and the bedding is carried out on each tier simultaneously from two sides.

 To increase the reinforcement of the walls of the tanks along the outer contour of a number of tanks, injection wells can be constructed to fix the rocks (not shown in the drawing).

 Thus, the proposed invention helps to strengthen the blade, composed of loose rocks, can increase its capacity, and can also be used for the formation of storages for various purposes.

Claims (4)

 1. METHOD OF CONSTRUCTION OF UNDERGROUND CONSTRUCTION, including preparation of the base, laying hollow structures from building modules on it and subsequent dumping of the embankment rocks on them, characterized in that containers are placed on the hollow structures that are connected to them, the embankment is filled with layers, and in the process of filling, capacity is increased along the height of the embankment by attaching additional blocks to them, while the direction of building is set in the direction of the filling along the embankment.  2. The method according to p. 1, characterized in that the containers that are placed on the hollow structures are made of reinforced concrete or metal.  3. The method according to p. 1, characterized in that the lower part of each tank is made in the form of a funnel with a shutter, while the walls of the funnel are made at an angle equal to the angle of repose of the tier of the dumped rocks.  4. The method according to p. 1, characterized in that the stiffeners are installed in the tanks in the direction perpendicular to the front of the bed of rocks, and the bedding is carried out on each tier simultaneously from two sides.

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