CN202482882U

CN202482882U - Vertical composite curtain of sanitary rubbish landfill

Info

Publication number: CN202482882U
Application number: CN2012200668851U
Authority: CN
Inventors: 常方强; 涂帆
Original assignee: Huaqiao University
Current assignee: Huaqiao University
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2012-10-10
Anticipated expiration: 2022-02-27

Abstract

The utility model discloses a vertical composite curtain of a sanitary rubbish landfill. The vertical composite curtain comprises a cement agitating pile wall body and a bentonite wall body, wherein the bentonite wall body is arranged in the cement agitating pile wall body by means of clamping along the depth direction of the landfill; and the cement agitating pile wall body comprises four to eight rows of mutually lapped pile bodies which are manufactured by pouring on site. According to the vertical composite curtain of the sanitary rubbish landfill, the cement agitating pile wall body comprises mutually lapped pile bodies, and has high strength and low permeability, therefore, the landfill can be prevented from liquid leakage well; when the bentonite wall body is constructed, the cement agitating pile wall body also can be prevented from hole collapsing; the bentonite wall body is arranged in the cement agitating pile wall body by means of clamping so as to form three resisting layers, thus, if cracks are generated in a certain layer and causes leakage, two other layers can come into play, and the safety is high; moreover, the vertical composite curtain has simplicity in construction; the cement agitating pile wall body and the bentonite wall body are constructed with cement and bentonite and the like; the construction material and the construction mode are relatively common, therefore, the cost is relatively low; and the vertical composite curtain is suitable for wide application.

Description

The vertical compound curtain of garbage sanitary filling field

Technical field

The utility model relates to a kind of impervious barrier structure of landfill yard, specifically is meant the vertical compound curtain that prevents the percolate seepage that is used for garbage sanitary filling field.

Background technology

In garbage sanitary filling field,, be coated with impervious barrier at landfill yard bottom, periphery and top in order to prevent percolate leakage pollution surrounding environment.The concrete cuts that adopt in the present peripheral impervious barrier, the concrete cut engineering cost is high, also possibly produce cracking if processing is bad more.In addition; Publication number is 1552534, and name is called in " the shop film method in the refuse landfill vertical seepage control obstruct system " patent of invention, adopts geomembrane as impervious wall; But geomembrane is pierced through by the rubble in the soil body easily, and then has the risk of percolate seepage.Publication number is 1206764, and name is called in the patent of invention of " method of anti-permeation for power jet curtain wall of refuse sanitary burying field ", adopts the swell soil and the soil body to stir and forms the agitation pile curtain wall; To stop the percolate seepage; But influenced by construction factor, be difficult to ensure that the agitation pile curtain wall does not have the crack to exist, and agitation pile curtain wall intensity is lower; Also there is the risk of percolate seepage in easy deformation.

The utility model content

In view of this, the purpose of the utility model is to provide a kind of vertical compound curtain of garbage sanitary filling field that can improve barrier performance.

In order to reach above-mentioned purpose, the solution of the utility model is:

The vertical compound curtain of a kind of garbage sanitary filling field; Comprise cement mixing pile body of wall and swell soil body of wall; This swell soil body of wall is located in the cement mixing pile body of wall along the landfill yard depth direction, and this cement mixing pile body of wall comprises form and the pile body that overlap each other of 4 to 8 row's casts in situs.

Said pile body is 4,6 or 8 rows, and said swell soil body of wall is folded in the middle part of this cement mixing pile body of wall.

Overlap about 10cm between adjacent two pile bodies each other.

The folder of said swell soil body of wall is established the about 1m of width.

After adopting said structure; The vertical compound curtain of the garbage sanitary filling field of the utility model has following beneficial effect: the cement mixing pile body of wall is made up of the pile body of mutual overlap joint; Have higher intensity and hypotonicity, can intercept landfill percolate preferably, when excavation is used to fill bentonitic groove in the cement mixing pile body of wall; The cement mixing pile body of wall is keeping off the peripheral soil body, can also prevent the hole phenomenon of collapsing; Folder is established the swell soil body of wall in the cement mixing pile body of wall, can form three layers of barrier layer, in case one deck wherein produces the crack seepage takes place, and two-layer in addition can also playing a role is safe; And the utility model construction is simple, and cement mixing pile body of wall and swell soil body of wall adopt constructions such as cement and swell soil to form respectively, and construction material and form of construction work are comparatively common, and cost is lower, is fit to large tracts of land and uses.

Description of drawings

Fig. 1 is that sketch map is laid on the plane of the vertical compound curtain of garbage sanitary filling field of the utility model;

Fig. 2 is the A-A sectional view among Fig. 1;

Fig. 3 is the B-B sectional view among Fig. 2.

Among the figure:

Cement mixing pile body of wall 1

Swell soil body of wall 2

Impervious layer 3

The specific embodiment

In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.

Shown in Fig. 1 to 3, the vertical compound curtain of the garbage sanitary filling field of the utility model comprises cement mixing pile body of wall 1 and swell soil body of wall 2.

Cement mixing pile body of wall 1 comprises 4 to 8 campshed bodies, overlaps about about 10cm each other between adjacent two pile bodies, and swell soil body of wall 2 is folded in the cement mixing pile body of wall 1 along the landfill yard depth direction.Preferably, cement mixing pile body of wall 1 adopts 4,6 or 8 campshed bodies, and correspondingly folder is established swell soil body of wall 2 between 2,3 or 4 campshed bodies, and the folder of swell soil body of wall 2 is established the about 1m of width.

During construction; The cement mixing pile body of wall 1 of at first constructing; Mixing pile machine around the landfill yard or downstream injection cement mortar or cement flour form the pile body of mutual overlap joint, each the pile body degree of depth to impervious layer 3 place treats that pile body solidifies after 28 days its intensity reaches design strength; In cement mixing pile body of wall 1, reserve the soil body and partly excavate groove to impervious layer 3 places, in this groove, pour swell soil into then and compacting gets final product.

Cement mixing pile body of wall 1 has stagnant water effect preferably, and the swell soil body of wall 2 that folder is established in the cement mixing pile body of wall 1 runs into moisture, and like rainfall or underground water, volume expansion forms the fine and close barrier layer of one about 1m of width.In addition, have the crack in case close on the cement mixing pile body of wall 1 of the inboard of landfill yard, the percolate seepage takes place, the swell soil body of wall 2 in the interlayer can intercept the outside seepage of percolate, and the cement mixing pile body of wall 1 in the outside also can play the effect of the 3rd layer of obstruct.

This shows; The vertical compound curtain of the garbage sanitary filling field of the utility model; Folder is established swell soil body of wall 2 in cement mixing pile body of wall 1; Thereby form three layers of barrier layer safely and effectively, can intercept garbage sanitary filling field percolate generation seepage effectively, have safe, barriering effect good, construction is simple, lower-cost advantage.

The product form and the style of the foregoing description and accompanying drawing and non-limiting the utility model, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.

Claims

1. vertical compound curtain of garbage sanitary filling field; It is characterized in that: comprise cement mixing pile body of wall and swell soil body of wall; This swell soil body of wall is located in the cement mixing pile body of wall along the landfill yard depth direction, and this cement mixing pile body of wall comprises form and the pile body that overlap each other of 4 to 8 row's casts in situs.

2. the vertical compound curtain of garbage sanitary filling field as claimed in claim 1 is characterized in that: said pile body is 4,6 or 8 rows, and said swell soil body of wall is folded in the middle part of this cement mixing pile body of wall.

3. the vertical compound curtain of garbage sanitary filling field as claimed in claim 1 is characterized in that: overlap about 10cm between adjacent two pile bodies each other.

4. the vertical compound curtain of garbage sanitary filling field as claimed in claim 1 is characterized in that: the folder of said swell soil body of wall is established the about 1m of width.