Method of reclamation of deformation of the earth surface coastal zones of water objects

 

The invention relates to the field of mining, in particular for the remediation of the terrestrial surface of the coastal zone of water bodies. The method involves leaving the safety of pillars under water objects, water resistance education dams and reclamation. Reclamation of the earth surface coastal zones of water objects produced by the deformation of the earth's surface, lowering the water below a positive mark of the coastal zone by working out the lava in the safety pillar directly under the water object. Leaves on the edges of the lava barrier pillars, the width of the lava On selected depending on the capacity of the removable layer m is necessary and sufficient that the thickness of the rocks after a failover lava and sedimentation of rocks in the zone of compression is not formed water conducting fractures connecting the reservoir with the mine workings above the barrier pillars were formed water resistance shafts dam on the earth's surface, and the water has dropped below the positive marks of the coastal zone of the earth's surface, in this case the parameter D is determined by a mathematical formula. When the capacity of the removable reservoir m>H/20, the water stream object temporarily sent on temporary artificial ru is iskopaemykh in the pillars. 2 Il.

The invention relates to the field of mining and, in particular, to the reclamation of the earth surface coastal zones of water bodies, coasts are fortified with dikes or dams, and the mirror is located above the surface of the coastal zone, subsidence which occurred due to the underneath of underground mining operations.

A known way of dealing with flooding of mines and areas of the coastal zone of water bodies, which consists in determining the dangerous zone of influence near the water body from the point of view of water breakthrough in water conducting fractures, outline a set of measures for the safe conduct of mining operations and assess the possibility of flooding certain areas of the surface due to their subsidence (subsidence) over the mine workings and provide protection from flooding [1].

The closest in technical essence and the achieved result is a way of protecting constructions and natural water bodies from the harmful effects of underground mining operations, for example, under the rivers flowing over mine fields, which consists in leaving the safety of pillars and construction of protective dams [2].

The disadvantage of these methods is that the river often okazyvaetsya, and the place itself is saracinesca. To prevent flooding of coastal areas to build dams and to maintain them for a long time in working condition. In addition, the pillars remains minerals, which goes in deadweight loss.

The aim of the invention is the reclamation of coastal areas and reducing the loss of minerals in the pillars.

This goal is achieved by the fact that from the left under water object protective pillar is hollow mineral width not less than the width of the water surface of the reservoir, leaving the sides of the barrier pillars, thus reclaiming the earth's surface coastal zones of water objects produced by the deformation of the earth's surface, lowering the water below the positive marks of the coastal zone by working out the lava in the safety pillar directly under water object, while leaving the edges of the barrier pillars, the width of the lava On selected depending on the capacity of the removable layer m is necessary and sufficient, so in the strata of rock after a failover lava and sedimentation of rocks in the zone of compression is not formed water conducting fractures connecting the reservoir with the mine workings, on the very lower positive marks of the coastal zone of the earth's surface, when power removable reservoir m > N/20, the water stream object temporarily sent on temporary artificial channels.

The invention is illustrated by drawings, where Fig.1 shows the position of the surface of the coastal zone while leaving a protective pillar, and Fig.2 shows the position of the surface of the earth of the coastal zone after working parts of the safety pillar and leaving the barrier pillars.

In the drawings, showing: 1 - the earth's surface finishing, 2 - the earth's surface after testing, the 3 - position of the pond (water body), 4 - previously developed area (excavation), 5 - safety rear sight, 6 - safe area of influence of a water body (area of compression of the earth's surface), 7 - exhaust rear sight (lava), 8 - barrier pillars, 9 - coastal ground surface after development pillar, 10 - water dam (shaft-dam).

The method is implemented as follows.

In the left under water object 3 safety pillar 5 produce the notch fossil of a width less than the width of the water surface of the reservoir 3, leaving the sides of the barrier pillars 8. As a result of mining operations deformation of the earth surface, i.e. the earth powernoise the water's edge, and over the barrier pillars 8 are formed water dam (shaft-dam) 10.

Leaving the edges of the lava 7 barrier pillars 8, the width of the lava On selected depending on the capacity of the removable layer m is necessary and sufficient that the thickness of the rocks after a failover lava 7 and sedimentation of rocks in the zone of compression is not formed water conducting fractures connecting the reservoir with the mine workings, and over the barrier pillars 8 on the surface of the earth was formed, water resistance shafts dam 10, and the water body 3 has dropped below the positive marks of the coastal zone of the earth's surface, in the case when capacity removable reservoir m > N/a 20, the stream object is temporarily sent on temporary artificial channels.

The parameter D is determined by the formula D=d+2Hctgwhere D is the width of the lava, d - width of the water body; H - depth of mining operations, (m);- the angle that defines the position of the compression zones on the earth's surface; m - capacity removable reservoir.

When working in the safety pillar 5 lava 7 width D angledetermining the position of the compression zones on the earth's surface must be such that the water hit it in the compression area in the strata of rocks not affect the Oh 7 and old mine workings 4 left barrier pillars 8. When this order of development of the reserves of water body 3 is lowered, i.e., after some time there is a subsidence of rocks (Fig. 2) by the amount by which preserves the natural surface of the coastal zone with an inclination in the direction of the reservoir, and above the barrier pillars 8 appears shafts, forming a water dam 10 (shaft-dam).

When removing the power reservoir m>N/a 20, it is necessary to direct the flow of water through the artificial temporary channels (e.g., trays or tubes).

Thus, deforming the earth's surface mining safety pillars 5 separation barrier pillar 8, the lower edge of the water body below the positive marks of the coastal zone, thereby producing the remediation of the landscape, which consists in the alignment of positive relief forms, eliminating the need to import soil and the formation of the earth's surface, because of the fertile layer of soil is not disturbed and usually covered with grassy vegetation, i.e. the deformation of the earth surface of the coastal zone is a natural reclamation of coastal areas, and development of parts of the safety pillars reduces the loss of minerals.

Sources of information 1. Povilajtene S.-Petersburg, Research Institute, 1998, S. 62-63.

2. Ibid, page 64.

Claims

Means of protecting the earth's surface coastal zones of water bodies, which consists in leaving the safety of pillars under water objects, water resistance education dams and reclamation, characterized in that the reclamation of the earth surface coastal zones of water objects produced by the deformation of the earth's surface, lowering the water below a positive mark of the coastal zone by working out the lava in the safety pillar directly under water object, while leaving the edges of the lava barrier pillars, the width of the lava On selected depending on the capacity of the removable layer m is necessary and sufficient, so in the strata of rock after a failover lava and sedimentation of rocks in the zone of compression is not formed water conducting fractures connecting the reservoir with the mine workings above the barrier pillars were formed water resistance shafts dam on the earth's surface, and the water has dropped below the positive marks of the coastal zone of the earth's surface, in this case the parameter D is determined by the formula D = d + 2Hctg,
where D is the width of the lava;
d - the width of the water body;
H - the depth of the m - power removable reservoir
when power removable reservoir m > H/20, the water stream object temporarily sent on temporary artificial channels.

 

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