CN203768917U

CN203768917U - Syphoning type seepage draining tailings dam

Info

Publication number: CN203768917U
Application number: CN201420139403.XU
Authority: CN
Inventors: 贾凡; 樊科伟; 徐琼; 柯宇超
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2014-03-26
Filing date: 2014-03-26
Publication date: 2014-08-13
Anticipated expiration: 2024-03-26

Abstract

The utility model discloses a syphoning type seepage draining tailings dam. The syphoning type seepage draining tailings dam comprises a preliminary dam body, a plurality of late dam bodies and a plurality of seepage draining devices. Each seepage draining device comprises a preliminary seepage well, a water collection well, a plurality of late seepage wells, a preliminary syphoning seepage draining pipe and late syphoning seepage draining pipes, the late dam bodies are built on the basis of the preliminary dam body, the preliminary seepage well is arranged on the inner side of the preliminary dam body, the water collection well is arranged on the outer side of the preliminary dam body, and the preliminary seepage well is communicated with the water collection well through the preliminary syphoning seepage draining pipe; the late seepage wells are arranged on the inner side of the preliminary dam body and are communicated with the preliminary seepage well through the late syphoning seepage draining pipes. At the dam heightening stage, the buried preliminary seepage draining system can be directly modified into a late seepage draining system on the basis of the preliminary dam body, construction load is greatly reduced, and construction is more convenient and economic.

Description

Hydrocone type row is oozed tailing dam

Technical field

The utility model relates to a kind of hydrocone type row and oozes tailing dam, and a kind of siphon principle that utilizes is discharged the seepage water in Tailings Dam specifically, reduces the hydrocone type row infiltration tailing dam of phreatic line in storehouse, is specifically related to the technical field of the draining tailing dam of Tailings Dam.

Background technology

Tailing dam is to be piled up and rolled the structure that form for going along with sb. to guard him Tailings Dam by mine tailing; be divided into tailing dam and initial dam; initial dam can be made permeable dike and (be conducive to mine tailing discharging consolidation; adopt in recent years more) and waterproof dam (domestic early stage employing is more); in the protection and harnessing of mine environment, play very large effect, it is mainly used in mine tailing or other industrial residues storing up metal and nonmetal deposits mountain and carry out ore and sort rear discharge.Be different from reservoir, reservoir requires antiseepage, and Tailings Dam requires row to ooze, otherwise easily forms mud-rock flow.If mine tailing contains hazardous substance, must treatedly tailing water could be discharged.

In the various factors that cause tailing dam accident, Seepage problems is the larger ratio of occupation ratio also.Due to the existence of osmotic pressure, reduce the stability of overall dam slope, tailing dam, under the effect of seepage flow, also may produce the phenomenon of the deformation and failure of self.Due to CHARACTERISTICS OF TAILINGS SAND deposition lamination, produce anisotropy infiltration rate, this is very large to seepage effect in dam, especially very large to phreatic line position influence in dam.Phreatic line position is too high, can make dam facing or downstream that bogginess occurs, and causes dam body, dam abutment and different materials binding site to have seepage water to flow out, and seepage discharge increases, and causes piping, finally causes dam break.Cause casualties and noxious pollutant under the accident of letting out occur repeatedly, bring about great losses to people's lives and properties, environmentally safe constituting a serious threat.Therefore, the stable and row of tailing dam is oozed technology etc. has become the key subjects that national governments, bargh and academia pay close attention to.

Just at present, domestic existing tailings dam drainage system mainly contains that Free-flow oozes system, radiation well array oozes system, siphonic drainage system, Horizontal drainage of infiltrate water system, vertical-horizontal united draining system etc.But, in most of pertinent literatures, all do not relate to this system and building after lower first phase dam body, can continue to use, or noly there is adaptability.And if we in dam body when building in the early stage, just setting initial stage row oozes system, and the row that the pre-buried next period need be used is oozed system.Like this, in the time that needs build the second stage of dam body, can be directly in the early stage on the basis on dam, pre-buried before second phase row is oozed to systematic building and complete, will greatly reduce construction volume, and reduce the use of dam body materials, construct more convenient, also more economical.This forward-looking tailings dam drainage system more and more receives publicity.

Utility model content

Utility model object: the purpose of this utility model is to provide a kind of and can adapts to the hydrocone type row that in tailing dam dam heightening process, row's demand of oozing strengthens and ooze tailing dam.

Technical scheme: tailing dam of the present utility model comprises that initial stage dam body, some later stage dam bodys and some rows ooze device, row is oozed device and is comprised initial stage influent well, collecting well, some later stage influent wells, initial stage siphon drainage pipe, later stage siphon drainage pipe; Later stage dam body is taking initial stage dam body as basis instrument; Elementary influent well is arranged at the inner side of initial stage dam body, and collecting well is arranged at the outside of initial stage dam body, and initial stage influent well is communicated to collecting well by initial stage siphon drainage pipe; Some later stage influent wells are arranged at the inner side of elementary dam body, and pass in succession initial stage influent well by later stage siphon drainage pipe.

Further, the top of side direction in the initial stage influent well deflection dam body that some later stage influent wells are arranged at.

Further, initial stage siphon drainage pipe is communicated with initial stage influent well and collecting well by the upper surface of initial stage dam body.

Further, some later stage dam bodys arrange by rank from bottom to top from initial stage dam body place.

Further, some later stage influent wells arrange by rank from initial stage influent well place, the some later stage dam body lines that arrange by rank of some later stage influent well line almost parallels; Between the adjacent later stage influent well arranging by rank, be all communicated with by later stage siphon drainage pipe, the later stage influent well of lowest-order is communicated to initial stage influent well by later stage siphon drainage pipe.

Further, some rows are oozed device and are equidistantly distributed along described tailing dam dam body lateral surface horizontal tangent direction.

Further, initial stage siphon drainage pipe is pvc pipe, and is provided with anti-block filtering device; Later stage siphon drainage pipe is pvc pipe, and is provided with anti-block filtering device.

The utility model compared with prior art, its beneficial effect is: the utility model is increased the dam body stage in the later stage, can be directly in the early stage on the basis of dam body, directly transform pre-buried before initial stage row's system of oozing as later stage row and ooze system, to greatly reduce construction volume, construct more convenient, also more economical., can combine with phreatic line monitoring system meanwhile, reach monitoring and ooze with row the effect that complements each other.This forward-looking tailings dam drainage system will solve tailing dam dam heightening and arrange the system of oozing and not reach and require this bottleneck.

Brief description of the drawings

Fig. 1 is a kind of hydrocone type tailing dam schematic cross-section in the utility model embodiment 1;

Fig. 2 is a kind of hydrocone type tailing dam schematic diagram in the utility model embodiment 1.

Detailed description of the invention

Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.

Embodiment:

As shown in Figure 1, the tailing dam of the present embodiment is provided with initial stage dam body 1 and later stage dam body 2.The inner side that in the utility model, a side that contacts slag in tailing dam dam body is defined as to tailing dam, the offside of this inner side is defined as the outside of tailing dam.Along with slag generation gradually in process of production, slag builds up, need to further increase tailings dam time, just taking initial stage dam body as basis instrument later stage dam body 2.And the present embodiment is preferably arranged on later stage dam body deflection dam body inner side, the top place that initial stage dam body is set as shown in Figure 1, other follow-up later stage dam body also arranges by rank as being step-like shown in 1.Later stage dam body is set like this and can offsets by arranging like this late dam displacement body that the slag of part tailing dam causes to the pressure in dam body outside, reduce the danger of dam body collapse.

The tailing dam of the present embodiment collects by collecting well is set the sewage that oozes place in dam, ore deposit, as shown in Figure 1, wherein, elementary influent well is collected the sewage oozing out in slag around, and by elementary siphon seepage flow pipe utilize siphonic effect by the sewage transport in elementary influent well to collecting well.It is follow-up after dam, ore deposit is increased, along with the increase of slag reserves, as shown in Figure 2, preferably by the later stage influent well of row and tailing dam later stage dam body line almost parallel is set, and by some later stage siphon drainage pipes, adjacent later stage siphon drainage pipe is communicated with by siphonic effect.Like this, carry at the later stage of dam body inside front row's seepage well the slag sewage of collecting by rank by later stage siphon drainage pipe, be finally pooled to first degree later stage row seepage well place.This later stage row's seepage well passes through later stage siphon drainage pipe equally by extremely elementary row's seepage well of sewage transport, and then imports collecting well by initial stage siphon drainage pipe.In the present embodiment, the line of some later stage influent wells on sectional view is roughly parallel to the line on late dam body section figure.Like this arrange, enough ensure dam body extend process in collecting well be arranged on all the time large stretch of slag below, be convenient to mobile phone slag sewage.And by collecting the sewage of these region slags, the slag that makes to approach initial stage dam body and later stage dam body place is all comparatively dry, is difficult for dam break occurs, and the slag of this section of dry end pressure that can cushion and disperse the relatively moistening slag in tailing dam inside to cause.Therefore strengthen the anti-dam break ability of this tailing dam.

Initial stage siphon drainage pipe is set by the upper surface of initial stage dam body in the present embodiment, so arrange, just ooze setting up and constructing of device for the ease of initial stage dam body siphon row, in reality, this initial stage siphon drainage pipe is arranged to still can't affect realization of the present invention through later stage dam body through initial stage dam body.

The present embodiment is provided with 6 rows and oozes device, equidistantly distributes, as shown in Figure 2 along described tailing dam dam body lateral surface horizontal tangent direction.

As mentioned above, although represented and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Not departing under the spirit and scope of the present invention prerequisite of claims definition, can make in the form and details various variations to it.

Claims

1. a hydrocone type row is oozed tailing dam, it is characterized in that, comprise that initial stage dam body (1), some later stage dam bodys (2) and some rows ooze device, this row is oozed device and is comprised initial stage influent well (3), collecting well (8), some later stage influent wells (6), initial stage siphon drainage pipe (7), later stage siphon drainage pipe (5); Later stage dam body (2) is taking initial stage dam body (1) as basis instrument; Elementary influent well (3) is arranged at the inner side of initial stage dam body (1), and collecting well (8) is arranged at the outside of initial stage dam body (1), and initial stage influent well (3) is communicated to collecting well (8) by initial stage siphon drainage pipe (7); Some later stage influent wells (6) are arranged at the inner side of elementary dam body (1), and pass in succession initial stage influent well (6) by later stage siphon drainage pipe (5).

2. a kind of hydrocone type row according to claim 1 is oozed tailing dam, it is characterized in that, the top of side direction in initial stage influent well (3) the deflection dam body that described some later stage influent wells (6) are arranged at.

3. a kind of hydrocone type row according to claim 1 is oozed tailing dam, it is characterized in that, described initial stage siphon drainage pipe (7) is communicated with initial stage influent well (3) and collecting well (8) by the upper surface of initial stage dam body (1).

4. a kind of hydrocone type row according to claim 1 is oozed tailing dam, it is characterized in that, described some later stage dam bodys (2) are located to arrange by rank from bottom to top from initial stage dam body (1).

5. a kind of hydrocone type row according to claim 4 is oozed tailing dam, it is characterized in that, described some later stage influent wells (6) are located to arrange by rank from initial stage influent well (3), some later stage dam body (2) lines that arrange by rank described in described some later stage influent wells (6) line almost parallel; Between the adjacent later stage influent well (6) arranging by rank, be all communicated with by later stage siphon drainage pipe (5), the later stage influent well (6) of lowest-order is communicated to initial stage influent well (3) by later stage siphon drainage pipe (5).

6. a kind of hydrocone type row according to claim 1 is oozed tailing dam, it is characterized in that, described some rows are oozed device and equidistantly distributed along described tailing dam dam body lateral surface horizontal tangent direction.

7. a kind of hydrocone type row according to claim 1 is oozed tailing dam, it is characterized in that, described initial stage siphon drainage pipe (7) is pvc pipe, and is provided with anti-block filtering device; Described later stage siphon drainage pipe (5) is pvc pipe, and is provided with anti-block filtering device.