CN216787088U

CN216787088U - Horizontal drainage system for strip mine slope

Info

Publication number: CN216787088U
Application number: CN202123030779.6U
Authority: CN
Inventors: 李惠发
Original assignee: Fushun Mining Group Co ltd
Current assignee: Fushun Mining Group Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-06-21
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a horizontal drainage system for strip mine slopes, which comprises a plurality of groups of drainage units arranged at intervals; the drainage unit sets up the drain pipe in side slope inside including the slope, is provided with protective case outside the drain pipe, is provided with the protection platform in the position that the lateral part protective case of side slope stretches out, and protective case's tip is provided with the top cap, is provided with the drain pipe with drain pipe matched with on the top cap. Compared with the vertical type drainage system for drainage, which is generally used in the prior art, the drainage system has the advantages of high pore-forming speed, low construction cost, good drainage effect, few site limiting factors, relatively low construction precision, one-time investment of material accessories, no need of wiring, power distribution and water pump installation for self-flow drainage, no need of subsequent processes of starting and stopping of the water pump, operator allocation and the like, and greatly reduced maintenance cost because the external rubber pipe is only required to be replaced for later maintenance.

Description

Horizontal drainage system for strip mine slope

Technical Field

The utility model relates to the technical field of drainage engineering, in particular to a horizontal drainage system for a strip mine slope.

Background

In the process of stripping and treating the strip mine, because of the influence of regional precipitation and the characteristic that partial rock stratum is softened when meeting water, upper layer stagnant water is formed in the side slope, the water level of underground water rises, and the potential safety hazard of landslide exists, thereby causing potential threat to daily safe production work.

The technical method used for drainage of the open pit in the prior art is a vertical drainage method, namely: and drilling a hole vertically downwards from the ground and arranging a water pump for pumping water in a selected working area by using a drilling machine with a corresponding model, and uniformly discharging all water outlet pipelines of the vertical shaft water pump in the area after being connected to a main water discharge pipeline. The drainage method for drainage has the advantages of high construction cost, multiple site limiting factors, great influence of rock quality of the rock stratum on construction, high construction precision requirement, large cost of materials and equipment, potential safety hazards when a water pump is arranged below the drainage method, and high later maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a horizontal drainage system for a strip mine slope, which aims to solve the problems in the prior art.

The utility model is realized by the following technical scheme: strip mine slope horizontal drainage system, its characterized in that: comprises a plurality of groups of drainage units arranged at intervals; the drainage unit sets up the drain pipe in side slope inside including the slope, is provided with protective case outside the drain pipe, is provided with the protection platform in the position that the lateral part protective case of side slope stretches out, and protective case's tip is provided with the top cap, is provided with the drain pipe with drain pipe matched with on the top cap.

Further: and a water guide pipe matched with the drainage system is arranged on the outer side of the drainage pipe.

Further: the upper end of the drain pipe is provided with a plug.

Further: the filler is arranged between the lower part of the drain pipe and the protective sleeve, and the bracket is arranged on the upper part of the drain pipe.

Further: the drain pipes are provided with a plurality of pipes, and two adjacent drain pipes are connected through quick connectors or through threads.

Further: the top cover is in threaded fit with the sleeve.

Further: the plug is a cork.

Further: the filler is a polyurethane foaming material or cement mortar or a rubber sealing ring.

The utility model has the beneficial effects that: compared with the vertical type drainage system for drainage, which is generally used in the prior art, the drainage system has the advantages of high pore-forming speed, low construction cost, good drainage effect, few site limiting factors, relatively low construction precision, one-time investment of material accessories, no need of wiring, power distribution and water pump installation for self-flow drainage, no need of subsequent processes of starting and stopping of the water pump, operator allocation and the like, and greatly reduced maintenance cost because the external rubber pipe is only required to be replaced for later maintenance.

Drawings

Fig. 1 is a schematic structural view of a drainage unit according to the present invention.

The sequence numbers in the figures illustrate: 1 is a drain pipe, 2 is a protective sleeve, 3 is a protective platform, 4 is a top cover, 5 is a drain pipe, 6 is a water guide pipe, 7 is a water permeable hole, 8 is a plug, 9 is a filler, 10 is a bracket and 11 is a water-containing side slope.

Detailed Description

Fig. 1 shows a horizontal drainage system for a side slope of an open pit mine, which is constructed according to the present invention, and is used for drainage of a water-bearing side slope 11 in a horizontal drainage manner (the horizontal drainage is horizontal relative to the existing vertical drainage and actually has a certain angle). The drainage device comprises a plurality of groups of drainage units which are arranged at intervals; the drainage units can be arranged according to geological conditions, and the drainage positions are usually required, and only one drainage unit is arranged every 50-100 square meters (in the actual construction process, the construction of a drilling machine is limited, a row of drainage holes are usually transversely drilled on a bottommost layer flat disc, and the distance is determined according to the water content condition of a local side slope and is about 5-10 meters). The drainage unit comprises a drainage pipe 1 obliquely arranged in the side slope, and an included angle alpha between the drainage pipe and the horizontal plane is 4-6 degrees, as shown in the figure, the part in the drainage pipe is high, and the part close to the outside is low, so that water can flow conveniently; a protective sleeve 2 is arranged outside the drain pipe, and the length of the protective sleeve is smaller than that of the drain pipe; the protective sleeve is characterized in that a protective platform 3 is arranged at a position, extending out of the side slope, of the side protective sleeve of the side slope, the protective platform is a cement platform or a steel structure platform, the lower portion of the protective platform is integrally connected with a fixed object such as the ground, the side face of the protective platform is matched with the inclined face of the side slope, the protective sleeve can be prevented from falling off or being damaged, and meanwhile, the side slope part is reinforced; the end part of the exposed part of the protective sleeve is provided with a top cover 4, and the top cover is provided with a drain pipe 5 communicated with the drain pipe. And a rubber water guide pipe 6 matched with the drainage system is arranged outside the drainage pipe, and water is further drained into a drainage ditch.

Preferably: the pipe wall of the drain pipe is provided with a plurality of water permeable holes 7 for collecting water inside the slope soil layer (including rock stratum and other structures).

Preferably: the end part (for convenience, the end is taken as the upper end) of the part of the drain pipe, which is positioned inside the side slope, is provided with a plug 8, and the plug is a cork plug plugged at the opening or a metal plate welded with the opening and sealing the opening. The shutoff can prevent that silt from getting into the drain pipe when inserting the drain pipe, prevents on the one hand that the drain pipe blocks up, and on the other hand can reduce the soil loss on side slope.

Preferably, the following components: be provided with filler 9 between drain pipe lower part and the protective case, the filler is polyurethane foam material or cement mortar or rubber seal etc. fills up the gap between two pipes in lower part, plays the supporting role on one hand, plays sealed effect on the other hand, prevents that water from losing between two pipes. Outside the trap, in particular near the upper one, a bracket 10 is provided, which is a plurality of support feet welded to the outer wall of the trap, to keep the trap near the middle of the protective sleeve.

Preferably: the drain pipe has many, connects through quick-operation joint or through threaded connection between two adjacent drain pipes, and protective case has many, through threaded connection.

Preferably, the following components: the top cover is in threaded fit with the sleeve.

Preferably, the following components: the number of the water permeable holes on the lowest drain pipe is far less than that on other positions, and more preferably, the drain pipe at the nearest side of the drilling machine is closed by the water permeable holes, namely, is not provided with holes.

The arrangement process of the structure of the utility model is as follows:

positioning a placement point, positioning a drilling machine, drilling at an elevation angle of 4-6 degrees, drilling and burying a water permeable pipe.

According to the characteristics and required depth of a rock mass in a construction area, an engineering drilling machine and a matched cooling water pump are selected, a water outlet pipe of the cooling water pump is connected with a cooling port behind a drill bit, water is fed into the drill bit from the cooling port to wash rock powder and simultaneously cool the drill bit in the drilling process of the drilling machine, after the opening diameter and the opening angle are designed, a well head supporting pipe (namely a protective sleeve) with screw threads at two ends is connected with the drilling machine to start drilling, if the thickness of a slope body with poor lithology around the well head is larger, the previously processed screw thread part is required to be connected with a plurality of well head supporting pipes, after the depth reaches a stable rock mass, the well head supporting pipe is reserved at one section outside the slope body, is separated from the drilling machine and is reserved in the rock mass, the drilling machine returns, the well head of the supporting pipe plays the roles of supporting protection and water diversion, then the drilling machine, the drilling rod is connected, the drill bit is inserted into the well head supporting pipe to start to construct a water drainage hole towards the interior of the rock mass, after the target depth is reached, a drill rod and a drill bit are lifted and retracted, a processed drain pipe with unit length extends into the head of one side of a rock body and is plugged by a cork, the drain pipe is inserted along a drain hole, a subsequent drain pipe is connected with the drain pipe in the front end rock body by using a quick connector, the drain pipe wall is staggered with drain holes in a plum blossom form until the length of the drain pipe is left away from an orifice, 1 aporate drain pipe is connected and is placed into a well head supporting pipe, after a water outlet pipe is welded on one side of a sealing top cover, the sealing top cover is connected with the well head supporting pipe by using a screw thread, a cement protection platform is built between a slope body and a water outlet of the well head supporting pipe to reinforce the stability of the water outlet, the upper slope body is prevented from dropping rocks to damage the well head supporting pipe, the water outlet pipe is connected by using a water guide pipe immediately, and water is guided to a designated ditch to be discharged.

Compared with the commonly used vertical drainage method, the method has the advantages that the drainage can be completed only in 1 to 1.5 days from the construction to the final hole forming water outlet of different rock stratum conditions according to the depth of one hundred meters, the hole forming speed is high, the construction cost is low, the drainage effect is good, the site limiting factors are few, the construction precision is relatively low, material accessories are put into one time, the self-flowing drainage does not need to be wired, distributed and provided with a water pump, the subsequent procedures of starting and stopping the water pump, equipping operating personnel and the like are omitted, the external rubber pipe is only needed to be replaced for later maintenance, and the maintenance cost is greatly reduced.

Claims

1. The utility model provides a horizontal drainage system of strip mine side slope which characterized in that: comprises a plurality of groups of drainage units arranged at intervals; the drainage unit sets up the drain pipe in side slope inside including the slope, is provided with protective case outside the drain pipe, is provided with the protection platform in the position that the lateral part protective case on side slope stretches out, and protective case's tip is provided with the top cap, is provided with the drain pipe with drain pipe matched with on the top cap.

2. The strip mine slope horizontal drainage system of claim 1, wherein: and a water guide pipe matched with the drainage system is arranged outside the drainage pipe.

3. The strip mine slope horizontal drainage system of claim 1, wherein: the upper end of the drain pipe is provided with a plug.

4. The strip mine slope horizontal drainage system of claim 1, wherein: the filler is arranged between the lower part of the drain pipe and the protective sleeve, and the bracket is arranged on the upper part of the drain pipe.

5. The strip mine slope horizontal drainage system of claim 1, wherein: the drain pipes are provided with a plurality of pipes, and two adjacent drain pipes are connected through quick connectors or through threads.

6. The strip mine slope horizontal drainage system of claim 1, wherein: the top cover is in threaded fit with the sleeve.

7. The strip mine slope horizontal drainage system of claim 3, wherein: the plug is a cork.

8. The strip mine slope horizontal drainage system of claim 4, wherein: the filler is a polyurethane foaming material or cement mortar or a rubber sealing ring.