CN202247789U

CN202247789U - Seepage-proofing structure for river bottom

Info

Publication number: CN202247789U
Application number: CN2011203530995U
Authority: CN
Inventors: 吴亚明; 廖海勇; 冯俊义; 李喜华
Original assignee: BEIJING ZHENGHE HENGJIBIN AQUATIC ECOSYSTEM ENVIRONMENT CONTROL CO LTD
Current assignee: Beijing and Henderson Urban International New York Ltd
Priority date: 2011-09-20
Filing date: 2011-09-20
Publication date: 2012-05-30
Anticipated expiration: 2021-09-20

Abstract

The utility model relates to a seepage-proofing structure for a river bottom; the seepage-proofing structure comprises a pure earth foundation and a waterproof carpet layer, wherein a lower red clay layer is arranged between the waterproof carpet layer and the pure earth foundation; an upper red clay layer is arranged on the waterproof carpet layer; the pure earth foundation, the lower red clay layer, the waterproof carpet layer and the upper red clay layer are mutually and tightly combined together; the waterproof carpet layer is a sodium-based waterproof carpet layer and is formed by the mutual overlap joint of a plurality of waterproof carpets; the pure earth foundation is of a compacted pure earth foundation; the thickness of the lower red clay layer is 40-60cm; the thickness of the upper red clay layer is 40-60cm; a planting oil layer is laid on the upper red clay layer; and the thickness of the planting oil layer is 40-70cm. The seepage-proofing structure has good seepage-proofing effect, can effectively avoid the infiltration of river water, simultaneously is beneficial to growth and reproduction of animals and plants at the river bottom and is mainly used for seepage prevention of rivers, lakes and other water areas.

Description

The river bed leakage preventing structure

Technical field

The utility model relates to a kind of river bed leakage preventing structure, mainly can be used for the antiseepage in river, lake or other waters.

Background technology

Existing river bed antiseepage mode be with the river bed original soil rammed, forms closely knit plain soil matrix, lays waterproof blanket then, and on the waterproof blanket upper berth loam layer of 50cm, the anti-seepage effect of this leakage preventing structure is not good, is easy to cause the following seepage flow mistake of water.

The utility model content

In order to overcome the above-mentioned defective of prior art, the utility model provides a kind of river bed leakage preventing structure, and the good seepage-proof property of this leakage preventing structure can be avoided oozing under the river effectively.

The utility model realizes that the technical scheme of above-mentioned purpose is:

A kind of river bed leakage preventing structure; Comprise plain soil matrix and waterproof blanket layer; Be provided with down the admaic earth layer between said waterproof blanket layer and the plain soil matrix, be provided with the admaic earth layer above the said waterproof blanket layer, said plain soil matrix, following admaic earth layer, waterproof blanket layer and last admaic earth layer are closely linked each other.

Said waterproof blanket layer is preferably sodium base waterproof blanket layer.

Said waterproof blanket layer is overlapped each other by some waterproof blankets usually and forms.Preferably, along the river flow path direction be positioned at the upper reaches the waterproof blanket overlapping edges on be positioned at the adjacent waterproof blanket edge in downstream.

Along the river the amount of lap at the adjacent two waterproof blanket edges of flow path direction can be 20-40cm usually.

The lap side seam place at said adjacent two waterproof blanket edges can be equipped with the swell soil that thickness is 0.5-1.5cm.

Said plain soil matrix should be the plain soil matrix of compacting usually.

The said thickness of admaic earth layer down can be 40-60cm usually.

The said thickness of going up the admaic earth layer can be 40-60cm usually.

Said the top of admaic earth layer of going up can be equipped with the plantation soil layer.

Said plantation the thickness of the layer is generally 40-70cm.

The beneficial effect of the utility model is: owing to be provided with closely knit admaic earth layer in the both sides up and down of waterproofing course; Can utilize the performance and the two-layer clay of its water-swellable to form protection against water penetration layer jointly thus, avoid the following of river to ooze effectively with high water retaining capacity; Owing to adopted overlapping mode to connect each waterproof blanket, on the waterproof blanket layer, do not stay the slit, and can play good sealing function through swell soil butt joint at seam crossing, guaranteed the water proofing property of waterproof blanket layer thus; Owing to all right mulching plant soil layer on last admaic earth layer, overcome the defective of suitable water plant of admaic earth and biological growth, guaranteed the ecosystem characterization in riverbed, make it to become the association of plants and animals that can multiply.

Description of drawings

Fig. 1 is the section structure sketch map of the utility model.

The specific embodiment

The utility model can be implemented through following manner:

(1) after the levelling of river bed, roll with road roller earlier, form the plain soil matrix 5 of compacting, on plain soil matrix, lay the thick admaic earth of 50cm then with certain water content, form admaic earth layer 4 down;

(2) with road roller the admaic earth that lays is rolled; Reach requirement compacting coefficient, for preventing laterite surface hard clod projection, unsettled destruction waterproof blanket, the microgroove leveling is carried out to the laterite surface in the compacting back; The fine sand compacting is filled in big crack, until surfacing;

(3) after the laterite surfacing is dried, begin to spread sodium base waterproof blanket, make it cover the river bed that all needs antiseepage, form waterproof blanket layer 3, in the waterproof blanket process of deployment, the constructor wears walking shoes without exception, forbids any cal rolling waterproof blanket simultaneously.Inspection waterproof blanket outward appearance record if find damage, is in time repaired before laying before laying; When laying embankment; According to by the upper reaches downstream, at the bottom of the back river of first two sides the shop establish order, waterproof blanket is laid and should be overlapped downstream along water (flow) direction simultaneously, the waterproof blanket overlap joint at the upper reaches is on the waterproof blanket of downstream; To guarantee when laying waterproof blanket that interface between the waterproof blanket is more than 30 centimeters; Again at interface spreading swell soil, its thickness was avoided causing the loosening secondary that causes of interface to waste because of moving waterproof blanket more than 1 centimeter simultaneously after two waterproof blankets were laid and finished; For preventing that sleet or strong wind weather from damaging waterproof blanket, the Field Force tackles lap-joint and the injury region of laying the waterproof blanket of accomplishing the same day and in time overhauls;

(4) after above the completion, lay the admaic earth of 50CM more above that, roll; Admaic earth layer 2 in the formation; Form the topping of two-layer densification thus at waterproof blanket up and down, utilize its water-swellable performance, make itself and two-layer admaic earth form protection against water penetration structure with high water retaining capacity;

(5) after completion laterite covered, mulching plant soil formed plantation soil layer 1 again; Because unsuitable water plant of laterite and biological growth; For guaranteeing its ecological property, behind the planting soil of 50 centimeters of coverings on the laterite, can be that river bed association of plants and animals forms the required soil environment of procreation.

Claims

1. river bed leakage preventing structure; Comprise plain soil matrix and waterproof blanket layer; It is characterized in that being provided with down the admaic earth layer between said waterproof blanket layer and the plain soil matrix; Be provided with the admaic earth layer above the said waterproof blanket layer, said plain soil matrix, following admaic earth layer, waterproof blanket layer and last admaic earth layer are closely linked each other.

2. river bed as claimed in claim 1 leakage preventing structure is characterized in that said waterproof blanket layer is a sodium base waterproof blanket layer.

3. river bed as claimed in claim 2 leakage preventing structure is characterized in that said waterproof blanket layer is overlapped by some waterproof blankets each other to form, along the river flow path direction be positioned at the upper reaches the waterproof blanket overlapping edges on be positioned at the adjacent waterproof blanket edge in downstream.

4. river bed as claimed in claim 3 leakage preventing structure is characterized in that the amount of lap at the adjacent two waterproof blanket edges of flow path direction is 20-40cm along the river.

5. river bed as claimed in claim 4 leakage preventing structure is characterized in that the lap side seam place at said adjacent two waterproof blanket edges is equipped with the swell soil that thickness is 0.5-1.5cm.

6. river bed as claimed in claim 1 leakage preventing structure is characterized in that the plain soil matrix of said plain soil matrix for compacting.

7. river bed as claimed in claim 1 leakage preventing structure is characterized in that the said thickness of admaic earth layer down is 40-60cm.

8. river bed as claimed in claim 1 leakage preventing structure is characterized in that the said thickness of going up the admaic earth layer is 40-60cm.

9. like claim 1,2,3,4,5,6,7 or 8 described river bed leakage preventing structures, it is characterized in that said go up the admaic earth layer above be equipped with the plantation soil layer.

10. river bed as claimed in claim 9 leakage preventing structure is characterized in that said plantation the thickness of the layer is 40-70cm.