摘要:
The present invention relates to a method in the excavation of rock caverns, substantially cylindrical vertical caverns, for storing liquids or dry products, or for use in storing process units, in which method an upper and a lower circumferentially extending cavern (4, 11) is formed, the caverns (4, 11) having an outer diameter which is greater than the diameter of the ultimate rock cavern (1); in which the caverns (4, 11) are connected together by means of vertical holes (12) drilled in the region immediately outside the ultimate rock cavern (1), these vertical holes (12) serving to drain water from the aforementioned region, for the purpose of minimizing the extent to which water can penetrate the rock cavern (1). (FIG. 1).
摘要:
A system for the underground storage of fluids, e.g. petroleum products in rock. The system comprises a plurality of cavities excavated in the rock. Each of said cavities has a cylindrical shape with a circular or oval cross-section. Each cavity forms a storage space the walls of which are formed by the rock and directly absorb the pressure of the fluid stored in the cavity. The cavities are arranged with their center axes standing vertically, and the vertical height of each cavity is greater than or equal to the diameter of its cross-section. The distance from each cavity to adjacent cavities is equal to or greater than the diameter of the cross-section of the cavity, and the centers of the cross-sections of the cavities as seen in a horizontal cross-section of the whole system are positioned in a two-dimensional pattern.
摘要:
A method of forming an underground cavern aiming at forming an underground cavern of a large scale at a very deep place in soft ground and soft rock layers safely and economically, and a tunneling machine suitable for use in carrying out the method. This method of forming an underground cavern consists of the steps of forming a ground reinforcing zone around a portion intended to be hollowed out before froming an underground cavern to be built, and then excavating the inside surrounded by the ground reinforcing zone. Further, the above-mentioned tunneling machine comprises a ring-shaped body having a first ring, a second ring, and a third ring; a boring device mounted between the second ring and propelling jacks for boring a plurality of holes extending radially from the inner surface of the tunnel into the ground; and a reinforcing material filling device mounted also between the second ring and the propelling jacks for filling a reinforcing material and a grout into each of the holes.
摘要:
The present invention relates to a method for excavating and preparation of rock cavities and then substantially spherical rock cavities or rock cavities having spherically shaped parts, such as dome-shaped ceilings, which rock cavities are intended as shelter, for the storage of solid or liquid products or for production plants in rock, whereby one drills a first series of radially outwardly extending holes (6) from a first distance (4) from one or more shafts/tunnels (3, 13, 14, 15, 16), preferably radially arranged from the center of a sphere projected; that one drills a second series of radially outwardly extending holes (8) from a second, far more out arranged distance (7) from the center, which holes (8) extend outside the holes of the first series; that one drills a third series of radially outwardly extending holes (10) from a third, further far more out arranged distance (9) from the center, which holes (10) extend outside the holes (8) of the second series; that optionally further series of holes (12) are drilled from further far out situated distances ( 11) extending radially outwardly up to the boundaries of the cavity (1); that the first series of holes (6) are charged in their whole lengths; that each further series of holes (8, 10, 12) are charged in that part which lies outside a charging area of a previous series of holes (6, 8, 10) up to the touching point of a next series of holes (10, 12), whereby the charges will take consecutive annular charging areas, which cover the shape of the spherical cavity projected, and that blasting takes place of each annular area per se starting from outside in, or vice verse.
摘要:
A rock cavity for storing fluids, solid products for some other purpose, such as the protected manufacture or production of goods, comprising a substantially vertical, cylindrical rock cavity comprising a conical top section (14), and a conical or horizontal bottom section (15) and a vertical section (1) extending therebetween and presenting in cross-section a polygonal shape, wherewith vertical shafts (11) are located in at least half the corners of the polygon.
摘要:
The method is especially useful for producing rock caverns for the storage of liquids such as water and oil. The method includes intersection blasting in accordance with the sublevel stopping method for at least one drift near the bottom of the intended rock cavern to produce at least one upwardly widening part section of the cavern. The cavern is then formed to its final cross-section by excavating rock above the part section through successive drilling and blasting of rock layers. The last-mentioned drilling is fan-shaped downwardly directed drilling to obtain an essentially lentiform cross-section of the cavern above the part section.
摘要:
Before the rock cavity is completely excavated a plurality of arcuated tunnels extending between the top and bottom levels of the intended rock cavity are cut out in the rock outside the future side walls of the cavity, and these tunnels are filled with reinforcing material, preferably concrete, so as to form a rib-like reinforcement structure which is wholly embedded in the rock surrounding the rock cavity.
摘要:
A method of constructing underground galleries using a pneumatic transfer system and a stratum disposal method are provided, wherein in constructing a disposal gallery of a stratum disposal site and tunnels such as mountain tunnels or in performing stratum disposal of waste matter, the carrying-out of excavation chips or the like, the carrying-in of materials and equipment or the like and the carrying-in and positioning of waste matter may be effected safely, quickly and reliably at low cost, and the buffer material quality for waste matter may be secured. In construction, an air carrying pipeline (10) is used while extending the air carrying pipeline (10) downward as desired during excavation of a vertical shaft (2) so as to carry out vertical shaft excavation chips (a) to the ground and carry in materials and equipment including vertical shaft spray concrete (b) to the underground site. Alternatively, the vertical shaft itself is used as the air carrying pipeline (10), and by using the air carrying pipeline (10) extending from the vertical shaft (2a) to an underground gallery (3), excavation chips (a) from the underground gallery (3) are carried out to the ground and materials and equipment for the underground gallery are carried in to the underground site. In operation, the air carrying pipeline (10) is used to carry in a carrying container (11) with the waste matter (A) and a buffer material (13) integrated together and stored therein, to the underground site, and the integrated waste matter (A) and buffer material (B) are positioned and buried in a disposal hole (7).
摘要:
In a method for excavating rock cavities in the form of substantially cylindrical, vertical or low placed rock cavities for the storage of gas, fluid, solid products or for another purpose, one first, from a transport tunnel (2), excavates an upper circular room (3). From this circular room (3), one excavates the roof shape of the rock cavity (1) to be; and then, from a second transport tunnel (7) excavates a second annular tunnel (5) from a middle level in the rock cavity (1) to be. From the second transport tunnel (7), one also excavates a lower circular room (8) situated on a level which is substantially at the level where the lowest level of the rock cavity (1) to be, is. At this lowest level one excavates a third annular tunnel (13); between the circular room (8) and the third annular tunnel (13) provides tap holes (9). From the second annular tunnel (5), stopping is carried out in a substantially annular vertical or inclined zone from the middle level to the lowest level and removes blasted rock mass through the tap holes (9). One then separates a substantially conical roof volume (10) above the annular room (8) whereafter, finally, a remaining, central, substantially cylindrical rock pillar (14), substantially placed above the annular room (8), is blasted completely or partly at one or more events and rock mass obtained is removed via the tap holes (9).
摘要:
Method for constructing a liquid-product storage location in rock formations, said location comprising a first cavity, and a plurality of second cavities located outside the first cavity. In accordance with this method there is first formed a tunnel (7) which slopes from the surface of the ground down to a given point in the rock formation. There is then blasted from said given point a second sloping tunnel (22) which meanders in the ultimate storage location in a plurality of turns down to the level of the bottom (11) of the ultimate first cavity. Horizontal primary tunnels (T1-T6) are then blasted from the meandering tunnel at a plurality of levels. From the primary tunnels there is then blasted at all the aforementioned levels a plurality of horizontal, secondary tunnels which extend towards the site of the ultimate first cavity (1) and define a number of rock stopes (P1-P6), whereafter the first cavity is formed by blasting, in a manner to extend along or to the level of the lowermost parts of the ultimate second cavities (2). Subsequent hereto, there is optionally blasted one or more sloping tunnels, which are directed towards the center of the lowermost part of the first cavity. Subsequent hereto the second cavities are formed by blasting away those rock stopes (P1-P4) located between superimposed secondary tunnels, beginning with the lowermost stope and continuing upwardly in sequence with remaining stopes, the shot rock-mass (16) falling downwardly, optionally through the slide tunnels, being transported to ground level.