Method for sinking vertical well bores and corresponding equipment

FIELD: mining.

SUBSTANCE: system for sinking vertical well bores includes a rotary drive mounted on a multi-tiered sinking platform with telescopic hydraulic cylinders, and connected to a cylindrical drill, hydraulic penetration bids, a loading machine for excavation of rock, and a tubbing erector. The set of equipment includes a conductor, with friction type bearings along the perimeter, and lower and upper supporting rings, and a screwdown structure with stulls and an encasing. A cylindrical drill has a cutting edge along the lower end and a support ring in the middle section, with the tooth wheel on top; wherein the gear drives are mounted on the lower conductor support ring to engage with the gear. The loader is mounted on a telescopic vertical stand rigidly fixed to the upper central part of the conductor. Cylinder rods of hydraulic jacks of the rock drill are mounted on the upper support ring of the conductor and rods of telescopic hydraulic jacks are connected with the screw down structure. The top floor of the sinking platform has niches with inflatable rubber elements, to prevent leakage of concrete.

EFFECT: increased speed of shaft sinking and lining quality due to construction of a monolithic lining inside the barrel.

3 dwg

 



 

Same patents:

FIELD: construction.

SUBSTANCE: steel-concrete lining of a cylindrical shaft is made as floating of two concentrically arranged steel cylinders with a tight bottom. Cylinders are mounted from two-ring steel sections fixed to each other along the length of the steel lining. The bottom of the lining, the space behind the lining and the space between steel walls of the outer and inner cylinders of this lining is concreted to form a solid steel-concrete cylinder of higher strength and hydraulic insulation. The construction complex includes a motor crane, a mobile drilling rig moving by rails, an airlift system for drilling, a system of multiple cleaning from sludge and supply of a washing fluid into a shaft, a hoist for lifting and lowering of steel structures, a mounting table and an aligning conductor for mounting of circular sections and steel lining, a rolling machine for steel sheets into cylindrical segments, and an electric welding equipment or station.

EFFECT: higher strength of a bearing structure of lining, higher efficiency, safety and speed of its erection.

9 cl, 3 dwg

The invention relates to the construction of crossings of trunk pipelines under the highways and railway embankments in the soil of I - IV categories

The invention relates to the field of tunnel and underground construction, and directly to the devices for the construction of vertical (shaft) trunks

The invention relates to the construction, and in particular to methods of secure underground excavations in water-saturated frozen soils

The invention relates to the field of underground construction by way of illustration of the well with a predominant use in complex engineering-geological conditions, characterized by the heterogeneity of soil layers along the strike, the presence of steeply dipping layers, weak, unstable water-saturated soil type sand and silts, when there is the possibility of swimming or Vipera soil in the bottom of the well with the formation on the surface around the walls of craters and dips, and the development of the soil in the cavity of the well must be made under the protection of buried in the soil below the bottom cutting edge of a knife

FIELD: construction.

SUBSTANCE: steel-concrete lining of a cylindrical shaft is made as floating of two concentrically arranged steel cylinders with a tight bottom. Cylinders are mounted from two-ring steel sections fixed to each other along the length of the steel lining. The bottom of the lining, the space behind the lining and the space between steel walls of the outer and inner cylinders of this lining is concreted to form a solid steel-concrete cylinder of higher strength and hydraulic insulation. The construction complex includes a motor crane, a mobile drilling rig moving by rails, an airlift system for drilling, a system of multiple cleaning from sludge and supply of a washing fluid into a shaft, a hoist for lifting and lowering of steel structures, a mounting table and an aligning conductor for mounting of circular sections and steel lining, a rolling machine for steel sheets into cylindrical segments, and an electric welding equipment or station.

EFFECT: higher strength of a bearing structure of lining, higher efficiency, safety and speed of its erection.

9 cl, 3 dwg

FIELD: construction.

SUBSTANCE: invention relates to underground construction at construction of vertical and inclined deep level openings. This is achieved by fact, that in method of vertical and inclined workings driving and attachment, which involves ground development and excavation in bottomhole zone, movable formwork installation, supply of concrete mixture in space formed by guard outer skin and formwork, concrete mixture compaction and support erection, according to invention support erection is performed in cycles, successively erecting sections of monolithic-compacted concrete with number of passes, providing further installation of one or two rings from cast iron tubings or reinforced concrete blocks, wherein concrete mixture supply until press chamber complete filling is performed with control of intensity and uniformity with concrete-conveying pipes overlapping after filling by means of controlled gates, which are regularly arranged along inner formwork circumference at pressure ring working stroke end, and then concrete mixture squeezing is performed in upward direction from press chamber with support onto rock and with formation of press-concrete support next pass. To implement method guard system is used including housing, rock-destructing working element, rock delivery mechanism, support erection mechanism, according to invention as destructing working element rotor type working member is used, which is made cone-shaped and rigidly connected with central hollow shaft, which is connected with gear wheel and driven into rotation by several hydraulic drives, gears, which come into engagement with gear wheel, driving rock destruction element with central shaft into rotation, wherein loosened rock delivery mechanism is located inside hollow shaft and made in form of screw, which lower end is pivotally supported against starting borer structure from rock destructing working element, and upper is connected with hydraulic drive arranged on guard housing horizontal flange, and guard inner housing lower part panel is also made cone-shaped and arranged at angle to central shaft, in lower part having of openings to receive loosened rock with its penetration into screw, and on guard housing conical part inner surface corrugated plates from abrasion and wear resistant and high-strength steel are arranged to increase working surfaces durability and efficiency during grinding of large pieces of rock, wherein screw in upper part is connected with for rock receiving hopper, and on guard housing upper tier in its central part tubbing erector is installed, having rotary platform installed on table with rollers and hydraulic drive, rigidly connected with central post, wherein on rotary platform telescopic handle with cast iron tubings or reinforced concrete blocks grip is arranged, wherein guard system has pressing chamber connected with hydraulic cylinders and equipped with pressing ring, at least, three controlled gates with concrete-conveying pipes uniformly arranged along inner formwork circumference, and on pressing chamber inner surface air valves are arranged, along circumference between concrete-conveying pipes gates for removal of air counter pressure when the pressing chamber filling with concrete mixture.

EFFECT: technical result from use of invention consists in improvement of support reliability and durability, as well as works production safety with reduction of shafts construction time with significant reduction of material and labor costs.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: system for sinking vertical well bores includes a rotary drive mounted on a multi-tiered sinking platform with telescopic hydraulic cylinders, and connected to a cylindrical drill, hydraulic penetration bids, a loading machine for excavation of rock, and a tubbing erector. The set of equipment includes a conductor, with friction type bearings along the perimeter, and lower and upper supporting rings, and a screwdown structure with stulls and an encasing. A cylindrical drill has a cutting edge along the lower end and a support ring in the middle section, with the tooth wheel on top; wherein the gear drives are mounted on the lower conductor support ring to engage with the gear. The loader is mounted on a telescopic vertical stand rigidly fixed to the upper central part of the conductor. Cylinder rods of hydraulic jacks of the rock drill are mounted on the upper support ring of the conductor and rods of telescopic hydraulic jacks are connected with the screw down structure. The top floor of the sinking platform has niches with inflatable rubber elements, to prevent leakage of concrete.

EFFECT: increased speed of shaft sinking and lining quality due to construction of a monolithic lining inside the barrel.

3 dwg

FIELD: mining engineering.

SUBSTANCE: method for constructing prefabricated-solid support of a shaft in the latter includes a process defined interval, the value of which is determined by the total length of the vertical fragments of the tubing string assembled during the time of acquisition of the specified strength properties of the concrete component of the prefabricated solid support. The process determined interval is divided into cuts. Before filling space behind tubing string of each cut with concrete solution, tension of the anchor rods is carried out by pressing of assembled elements of the tubing string to the previously fixed fragment of the tubing string with the total force equal to the total weight of all vertical fragments of the tubing string of the process determined interval and the concrete poured into the space behind tubing string, filling each cut with concrete solution and retaining the tension of the anchor rods in the course of time sufficient for concrete to get the strength, providing retention tension anchor rods due to their adhesion to the concrete monolith. In the device for constructing prefabricated solid support of the shaft, the hydraulic jacks are made with hollow rods and fixed to the mounting frame coaxially to the windows for anchor rods passage, each of which passes through the cavity of its rod and contains at its end the fastening elements of the locking stop interacting with the end of the hollow rod of the hydraulic jack. The latter are made with the possibility of pre-tensioning the anchor rods for the time of assembling the next portion of the tubing string and concreting space behind the tubing string, and then moving together with the mounting frame along the anchor rods.

EFFECT: inventions increase the quality and reliability of the tubing concrete support with its downward erection, the ability of the support to resist multidirectional stresses transmitted from the intersected rock layers increases, and the thickness of its walls decreases, the number of equipment used and its dimensions decreases, the material consumption and the diameter of the shaft development, development rate increases.

7 cl, 5 dwg

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