KR20040086017A - Drainage method for civil engineering works using fiber filters and, latticelike block and gunny bag product made by using foaming resin pellets - Google Patents

Abstract

PURPOSE: A drainage method for civil engineering works making use of foaming resin is provided to prevent a collapse accident of a civil engineering structure and to improve constructability, economical efficiency, and safety. CONSTITUTION: In a drainage method for civil engineering works making use of foaming resin, a block product for drainage(2) made by forming foaming resin pellets(1) in a block shape of a lattice type, and a gunny bag product(3) for drainage made by filling a gunny bag with foaming resin pellets are selectively applied according to the construction conditions of a field or used for back fill of a civil engineering structure and for a stone filled drain dummy ditch together with a civil engineering fiber filter member(8). Reduction of earth pressure acting on the structure and drainage are promoted by making use of the lightness and permeability of foaming resin and safety of the structure is increased through the removal of water pressure by the lowering of underwater level.

Description

Civil engineering drainage method using foamed resin {omitted}

The present invention relates to a drainage method for civil engineering using water resistance, compressive strength and permeability, which should be provided at the time of construction of light weight and civil engineering structures of foamed resins. Although aggregate materials are difficult to obtain, expensive, and difficult to adjust the particle size of the soil for various sites, frequent retaining walls and stone collapses due to severe earth pressure and hydraulic pressure due to poor drainage due to poor backfilling It was.

In order to solve the problems described above, the present invention uses a ground block made of a lattice block or foamed resin granules filled with foamed resin granules as a backfill material for retaining walls and masonry, thereby reducing the pressure reduction and smooth drainage. The purpose of the present invention is to prevent collapse accidents, workability, economics, and safety.

1 is a perspective view showing a state in which the foamed resin granules (1) of the main part of the present invention molded into a lattice block shape (A) and the foamed resin grains (1) for the construction of curved construction sections and irregular shapes as geotextiles; (B) A state diagram showing the shape of a freely entangled fillet made of a sack, a cross section showing the backfill of a general retaining wall, a sectional view showing a drainage hole, and a cross section showing a backfill state of a pebble (d); Filling the ground fiber section with a cross-sectional view (e) and foamed resin granules (1) showing the retaining wall backfill and drainage construction conditions, in which a lattice block product (2) molded with granules (1) and a geotextile filter (8) are combined Sectional view (bar) showing the state in which the encased product (3) is constructed together with the geotextile filter (8) as a backfill drain hole in the stonework

* Description of the symbols for the main parts of the drawings *

1. Expandable resin pellets

2. Block products made by forming granular foamed resin granules

3. A hemp product made by filling foamed resin granules into a hemp made of geotextile.

4. retaining wall

5. PVC drainage pipe

6. Backfill Gravel

7. Masonry or Con'c Block

8. Geotextile Filter (Non-Woven Fabric, PP MAT, PET MAT)

Hereinafter, described in detail by the accompanying drawings as follows.

1 is a perspective view (a) showing a lattice block product (2) formed by molding a foamed resin grain (1) and a state diagram (b) showing a foamed resin grain (1) freely entangled in a geosynthetic fiber stem (b) and retaining wall back surface; Geosynthetic sack with foamed resin lattice block (2) stacked in layers, wrapped with geotextile filter (8), and filled with soil and cross-sectional view (e) and foamed granules (1) Fig. 2 shows the cross-sectional view of the drainage hole (bar) on the back of the stone stock stacked with (2) on the slope and wrapped with the geotextile filter (8).

As described above, the present invention is a drainage method for preventing collapse accidents caused by poor drainage of civil structures by using the light weight and permeability of the foamed resin, and in particular, the foamability during backfilling of retaining walls, stones and shifts. Resin drainage reduces soil pressure (the soil To It is an economical civil engineering drainage method that can smoothly drain and prevent the collapse of the structure that may occur when the groundwater level rises due to rainfall and other causes, increase safety, and light weight.

Claims (1)

Drainage block product (2) made by forming the foamed resin granules (1) into the lattice block shape of FIG. 1 (a) and foamed resin granules (1) filled with the geotextile filter material 3) can be selectively applied according to the construction conditions of the site, or used in combination with the geotextile filter material (8) for the backfill and blind culmination of civil structures such as retaining walls and stone foundations, thereby utilizing the lightness and permeability of the foamed resin. Civil engineering drainage method to increase the safety of the structure by hydraulic pressure relief to reduce groundwater level by promoting earth pressure reduction and drainage acting on the structure