CN201843124U

CN201843124U - Radial well

Info

Publication number: CN201843124U
Application number: CN201020570750XU
Authority: CN
Inventors: 向辉
Original assignee: Changsha Design Institute of Nonferrous Metallurgy
Current assignee: CINF Engineering Corp Ltd; Changsha Design Institute of Nonferrous Metallurgy
Priority date: 2010-10-21
Filing date: 2010-10-21
Publication date: 2011-05-25
Anticipated expiration: 2020-10-21

Abstract

The utility model discloses a radial well, which comprises a shaft, a seepage draining pipe, a plurality of rows of seepage collecting pipes arranged along the front of the shaft in sector form and communicated with the shaft, and a plurality of rows of seepage collecting pipes arranged on the left and the right of the shaft and parallel to the dam axis direction A and communicated with the shaft. By the aid of the additional seepage collecting pipes parallel to the dam axis, a complete seepage stop wall is formed in a dam body. Seepage accumulated in the dam body is collected in the radial well concentrically through the seepage stop wall and is drained to the outside of the dam, thereby reducing the seepage line and guaranteeing safety and stability of the dam body.

Description

Radial

Technical field

The utility model relates to a kind of radial that reduces dam seepage line.

Background technology

In the accumulation of dam of mill tailings storehouse radial often is set and reduces dam seepage line, stable to keep dam body.As depicted in figs. 1 and 2, the well seat is anterior in the 3～5m altitude range of radial bottom arranges that at interval 2～3 layers of collection ooze pipe 2, a drainage pipe 6 is set in centre position, well seat rear portion then is used for row and oozes.

After by existing method radial being set, though having, dam seepage line necessarily falls deeply, strengthened dam stability to a certain extent, but existence owing to mine tailing fill dam chats interburden layer, lens etc., collection oozes pipe 2 upstream to be beaten, infiltration can't focus in the radial fully, and it is not very desirable that dark effect falls in phreatic line.According to the measured data behind a plurality of mine tailing lab setting radials, existing method dam seepage line reduction generally about 1/2～2/3 well depth, many times is difficult to satisfy the dam stability calculation requirement.

Summary of the invention

The deficiency that is difficult to satisfy dam stability at existing radial, the utility model aims to provide a kind of radial, it oozes the pipe except that the collection that existing upstream is fan-shaped layout, in radial pit shaft both sides, be parallel to axis of dam direction, set up to count to arrange in a row and ooze pipe, in dam body, form one complete cut-off wall.

Concrete technical scheme of the present utility model is: described radial, the drainage pipe that comprises pit shaft, is located at the pit shaft rear portion and is communicated with pit shaft, be fan-shaped layout and arranging in a row of being communicated with pit shaft more along the pit shaft front portion and ooze pipe, be characterized in, comprise also being arranged in the pit shaft left and right sides and being parallel to arranging in a row of axis of dam direction A more and ooze pipe that this collection oozes pipe and is communicated with pit shaft.

Further, described collection oozes in the altitude range that pipe is arranged on pit shaft bottom-up 1/4～1/3, and adjacent two arrange in a row that to ooze the vertical spacing of pipe be 0.8-1.2m, is preferably 1m.It is 30-100m that described collection oozes length of tube.

The angle that oozes between the tubular axis line at adjacent two collection on the same horizontal plane is 30 degree.

Compared with prior art, the beneficial effects of the utility model are: ooze pipe by the collection of setting up that is parallel to axis of dam layout, form one complete cut-off wall in dam body.Infiltration is collected and is oozed the pipe centralized collection in radial through behind this cut-off wall in the accumulation of dam, is discharged into outside the dam, thereby reaches the reduction phreatic line, guarantees the stable purpose of safety of dam body.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further elaborated.

Fig. 1 is the structural representation of existing radial;

Fig. 2 is the drawing in side sectional elevation of Fig. 1;

Fig. 3 is the structural representation of a kind of embodiment of the utility model;

Fig. 4 is the drawing in side sectional elevation of Fig. 3;

Fig. 5 is a drainage pipe structural representation described in the utility model;

Fig. 6 is a shaft bottom described in the utility model drainage pipe arrangement diagram.

In the drawings:

The 1-pit shaft; 2, the 20-collection oozes pipe; The 3-concrete floor;

4-shaft bottom collection oozes pipe; The 5-cat ladder; The 6-drainage pipe;

The 7-geotextiles; The 8-hole of seeping water; 9-dam slope gutter.

A-axis of dam direction.

The specific embodiment

A kind of radial, shown in Fig. 3 and 4, comprise pit shaft 1, the drainage pipe 6 of being with concrete floor 3 and be arranging in a row of fan-shaped layout more and ooze pipe 2 along pit shaft 1 front portion, this pit shaft 1 bottom is provided with the shaft bottom collection and oozes pipe 4, also comprise being arranged in pit shaft 1 left and right sides and being parallel to arranging in a row of axis of dam direction A more and ooze pipe 20, described

collection oozes pipe

2,20, drainage pipe 6 all is communicated with pit shaft 1.Described

collection oozes pipe

2,20 and is arranged on well depth from bottom to top in 1/4～1/3 the altitude range, and adjacent two arrange in a row that to ooze

pipe

2,20 vertical spacings be 1m, and described collection oozes manages 2,20 length and be 30-100m, is preferably 50-80m.

Be provided with cat ladder 5 in the described pit shaft 1; As shown in Figure 4, the angle that oozes between

pipe

2,20 axis at adjacent two collection on the same horizontal plane is 30 degree.

As shown in Figure 5, drainage pipe 6 is existing design in the utility model, and drainage pipe 6 one ends extend to dam slope gutter 9 outside the dam, are provided with in this drainage pipe 6 to be a plurality of infiltrations hole 8 that the plum blossom shape is arranged.

It is a kind of existing design that described shaft bottom collection oozes pipe 4 arrangement, and as shown in Figure 6,

collection oozes pipe

2,20 liquid is collected to drainage pipe 6, discharges by drainage pipe 6 then.

Ooze on the pipe basis by the collection in existing radial design, in the pit shaft both sides, be parallel to axis of dam direction A, set up to count to arrange in a row and ooze pipe,

collection oozes pipe

2,20 length determines that by each the absolute altitude fill dam axis of dam length outer end reaches original massif and is as the criterion.

Claims

1. radial, the drainage pipe (6) that comprises pit shaft (1), is located at pit shaft (1) rear portion and is communicated with pit shaft (1), be fan-shaped layout and arranging in a row of being communicated with pit shaft (1) more along pit shaft (1) front portion and ooze pipe (2), it is characterized in that, also comprise being arranged in pit shaft (1) left and right sides and being parallel to arranging in a row of axis of dam direction A more and ooze pipe (20), this collection oozes pipe (20) and is communicated with pit shaft (1).

2. radial according to claim 1 is characterized in that, described collection oozes in the altitude range that pipe (2,20) is arranged on pit shaft (1) bottom-up 1/4～1/3, and adjacent two arrange in a row that to ooze the vertical spacing of pipe (2,20) be 0.8-1.2m.

3. radial according to claim 1 is characterized in that, it is 30-100m that described collection oozes pipe (2,20) length.

4. radial according to claim 1 is characterized in that, the angle that oozes between pipe (2, the 20) axis at adjacent two collection on the same horizontal plane is 30 degree.