CN110617798A

CN110617798A - Monitoring tube structure for tailing dam infiltration line and distribution thereof

Info

Publication number: CN110617798A
Application number: CN201910982138.9A
Authority: CN
Inventors: 郝喆; 吴超君; 曹明杰; 邓焱
Original assignee: Liaoning University
Current assignee: Liaoning University
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2019-12-27

Abstract

The invention relates to a monitoring tube structure for a tailing dam infiltration line and distribution thereof, wherein the lower half part of the monitoring tube is provided with a water filtering section, the water filtering section reaches the bottom of the monitoring tube, the outer circumference of the monitoring tube is coated with coarse sand backfill, the outer circumference of the monitoring tube is coated with non-woven fabric, the protection range of the non-woven fabric corresponds to the range of the water filtering section, an optical fiber osmotic pressure sensor is arranged in the monitoring tube, and the sensor transmits signals through an optical cable, so that the requirement of tailing pond infiltration line detection can be met, the structure is ensured to be stable, the.

Description

Monitoring tube structure for tailing dam infiltration line and distribution thereof

Technical Field

The invention relates to a monitoring structure for a tailing dam infiltration line and distribution thereof, belonging to the technical field of tailing pond safety and environment monitoring.

Background

The tailing pond is used as a major hazard source of mines, major safety and pollution events occur for many times in recent years, the life and property safety of people is seriously threatened, and severe social influence and environmental influence are caused. Therefore, the safety monitoring level of the tailing pond is improved, and the safe operation of the tailing pond is ensured to have important strategic significance.

Disclosure of Invention

The invention aims to provide a monitoring tube structure for a tailing dam infiltration line and distribution thereof, which can meet the requirement of tailing pond infiltration line monitoring, ensure stable structure, facilitate detection and reduce manufacturing cost.

In order to solve the above problems, the specific technical scheme of the invention is as follows: the utility model provides a monitoring tube structure for tailing dam infiltration line, the monitoring tube lower half is equipped with the drainage section, and drainage section is up to the monitoring socle portion, and the outside circumference cladding of monitoring tube has coarse sand backfill, and the outside circumference cladding of monitoring tube has the non-woven fabrics, and the non-woven fabrics protective range corresponds with drainage section scope, and the inside optic fibre osmotic pressure sensor that is equipped with of monitoring tube, sensor pass through optical cable transmission signal.

The monitoring pipes are respectively positioned on a main shaft of the dam body and dam sections on two sides, the sections where the monitoring pipes are positioned are monitoring sections, the monitoring sections are perpendicular to the trend of the tailing stacking dam, the distance between the sections of the monitoring pipes on the two sides and the sections of the main shaft monitoring pipes is 60m, and the number of the monitoring pipes on each section is more than or equal to 3.

The water filtering section is as follows: the wall of the monitoring pipe is provided with eight water filtering orifices in a circle.

The PVC pipe with the diameter of 75mm is embedded with the depth of 10-15 m.

The optical cable is an armored optical cable with the diameter of 3mm, and a pvc pipe with the diameter of 20mm is sleeved on the outer circumference of the armored optical cable and is buried in soil shallowly.

The invention has the following beneficial effects: the monitoring point of the saturation line is simple in structure and easy to construct, the monitoring section is located on the dam body main shaft and the dam section sections on the two sides of the dam body main shaft, the traditional method of determining the observation position by depending on experience is made up, the practicability is high, and the monitoring effect is good.

Drawings

FIG. 1 is a schematic view of a monitoring tube configuration.

Fig. 2 is a schematic structural diagram of a water filtering section.

Fig. 3 is a schematic view of monitoring tube.

Detailed Description

As shown in figures 1 to 3, the monitoring pipe 1 structure for the tailing dam infiltration line is characterized in that a water filtering section 3 is arranged at the lower half part of the monitoring pipe 1, the water filtering section 3 extends to the bottom of the monitoring pipe 1, and the monitoring pipeThe outer circumference cladding of 1 has coarse sand backfill 2, and the outer circumference cladding of monitoring pipe 1 has the non-woven fabrics, and the non-woven fabrics protection scope corresponds with 3 scopes of drainage section, and monitoring pipe 1 is inside to be equipped with optic fibre osmotic pressure sensor 9, and the sensor passes through optical cable 7 transmission signal. The geotextile 4 adopts non-woven geotextile 4, two layers are wrapped, and the mass per unit area is more than or equal to 500g/m²And is tightly wound by stainless steel wires.

The monitoring pipes 1 are respectively positioned on a main shaft and dam sections on two sides of a dam body, the section where the monitoring pipe 1 is positioned is a monitoring section, the monitoring section is perpendicular to the trend of the tailing stacking dam, the distance between the sections of the monitoring pipes 1 on two sides and the section of the main shaft monitoring pipe 1 is 60m, and the number of the monitoring pipes 1 on each section is more than or equal to 3.

The water filtering section 3 is as follows: the pipe wall of the monitoring pipe 1 is provided with a water filtering orifice 3-1, eight water filtering orifices 3-1 in a circle. The water filtering orifices 3-1 are arranged in the range of 2m from the bottom of the pipe, 8 water filtering holes are drilled at equal intervals in each circle, the hole diameter is 6mm, and the longitudinal distance between the holes is 50 mm.

The diameter of the monitoring tube 1 is 75mm, and the embedding depth of the pvc tube 6 is 10-15 m.

The optical cable is an armored optical cable 7 with the diameter of 3mm, and a pvc pipe 5 with the diameter of 20mm is sleeved on the outer circumference of the armored optical cable 7 and is buried in the soil in a shallow mode.

Example (b):

1. three wetting line observation sections are arranged on the slope of the tailing accumulation dam and are vertical to the axis of the dam body, and are respectively positioned on the main shaft of the dam body and the dam sections on the left side and the right side of the dam body;

2. 3 monitoring points are arranged on each monitoring section, and the distance between the monitoring points of the same monitoring section is 30 m;

3. manufacturing the monitoring pipe 1 according to the description, drilling a water filtering hole, and arranging the geotextile 4;

4. drilling holes at the monitoring points, arranging broken stones at the hole bottoms, then placing the monitoring pipes 1, and filling gaps between the monitoring pipes 1 and the hole walls;

5. connecting an optical fiber osmotic pressure sensor by using a steel wire rope, determining the position of the sensor, putting the sensor into the monitoring pipe 1, and fixing the steel wire rope at the upper end;

6. fusing the optical fiber osmometer with a pre-embedded single-mode armored optical cable;

7. a masonry structure is formed by red bricks to protect the monitoring points, and the size of the masonry structure is 300mm multiplied by 300 mm.

In the description of the present invention, it is to be understood that the terms "vertical", "upper", "lower", "one side end", "one end", "upper", "horizontal", "above", "below", "vertical", "middle", "lower", "other end", "longitudinal", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for the purpose of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the term "coupled" may refer to a direct connection, an indirect connection through an intermediate medium, a connection between two elements, or an interaction relationship between two elements, and a person skilled in the art can understand the specific meaning of the terms in the present invention according to specific situations.

What has been described above is merely a preferred embodiment of the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the principle of the present invention, and they should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a monitor tube structure for tailing dam infiltration line which characterized in that: the monitoring tube lower half is equipped with the drainage section, and drainage section is up to monitoring socle portion, and monitoring pipe circumference cladding has coarse sand backfill, and monitoring pipe circumference cladding has the non-woven fabrics, and the non-woven fabrics protective range corresponds with drainage section scope, and the inside optic fibre osmotic pressure sensor that is equipped with of monitoring pipe, sensor pass through optical cable transmission signal.

2. The distribution of monitoring tubes for a saturation line of a tailings dam of claim 1, wherein: the monitoring pipes are respectively positioned on a main shaft of the dam body and dam sections on two sides, the sections where the monitoring pipes are positioned are monitoring sections, the monitoring sections are perpendicular to the trend of the tailing stacking dam, the distance between the sections of the monitoring pipes on the two sides and the sections of the main shaft monitoring pipes is 60m, and the number of the monitoring pipes on each section is more than or equal to 3.

3. The monitoring tube structure for the saturation line of a tailings dam of claim 1, wherein: the water filtering section is as follows: the wall of the monitoring pipe is provided with eight water filtering orifices in a circle.

4. The monitoring tube structure for the saturation line of a tailings dam of claim 1, wherein: the PVC pipe with the diameter of 75mm is embedded with the depth of 10-15 m.

5. The monitoring tube structure for the saturation line of a tailings dam of claim 1, wherein: the optical cable is an armored optical cable with the diameter of 3mm, and a pvc pipe with the diameter of 20mm is sleeved on the outer circumference of the armored optical cable and is buried in soil shallowly.