CN200946265Y - Vertical tube type grating reinforced stone column - Google Patents

Abstract

The utility model relates to a vertical pipe grill reinforce gravel pile. The utility model wrap an ordinary gravel pile with a pipe earth-wood grill to form the vertical pipe grill reinforce gravel pile. Said pipe earth-wood grill is arranged on the upper part of an ordinary gravel pile. Shortcoming of present gravel piles that bloating damage and whole shear failure will be caused by radial deformation resulting from upper load on the pile top can be avoided. Shortcomings of other promoted gravel piles are also avoided. The utility model effectively prevents side bloating deformation and the bearing ability of the gravel pile is greatly increased. Besides, said gravel pile can be mass-produced at factories and sites and can be carried easily. The simple structure provides good effects.

Description

A kind of vertical tubular type grill reinforce broken stone pile

Technical field

The utility model relates to a kind of grill reinforce broken stone pile, particularly a kind of vertical tubular type grill reinforce broken stone pile.

Background technology

Broken stone pile is a kind of stake of generally using in the ground stabilization, and its defective is to be vulnerable to destroy.Reason that it is damaged and pattern comprise bloating to be destroyed and general shear failure, and wherein bloating destruction is modal form.Bloating and destroying reason is under the upper load effect, in the certain depth scope radial deformation can take place near the stake top, causes pile capacity to reduce greatly causing losing efficacy thereby be out of shape senior general.

Before the present utility model, a kind of " stake of planar grille reinforced rubble " (the 3rd geosynthetics academic meeting paper collection in the whole nation, publishing house of University Of Tianjin, 1992, p137-141), promptly near broken stone pile stake top, arrange horizontal reinforcement in the certain depth scope, form the stake of planar grille reinforced rubble, utilize the lateral deformation on the frictional resistance restriction stake top between muscle, the soil, bloat destruction with elimination.The geotechnical engineering journal (1993,15 (5), 107-111) its bearing capacity also there is analysis.But still there are the following problems for this technology: (1) bloats destruction generally in 2～3 meters scopes in stake top, adopts the plane geo-grid during practice of construction because can not cross and excavate the original state foundation soil greatly, and it is limited therefore to handle the degree of depth; (2) planar grille mainly utilizes the frictional resistance limit lateral distortion between grid and the rubble, because interlayer is laid, can not play the effect of restrained deformation fully.

Summary of the invention

The purpose of this utility model just is to overcome above-mentioned defective, design, a kind of new vertical tubular type grill reinforce The Macadam Pile Construction method of development.

The technical solution of the utility model: a kind of vertical tubular type grill reinforce broken stone pile, its major technique are characterised in that the peripheral parcel of common broken stone pile one tubular type geo-grid, form vertical tubular type grill reinforce broken stone pile.

Advantage of the present utility model and effect are that this is the reinforced rubble stake that a kind of effective limit lateral bloats distortion, can improve the bearing capacity of broken stone pile greatly; Pile tube grid in the utility model can be factory or on-the-spot batch process the in batches, easy to carry, use simply effective.

Description of drawings

Fig. 1---the utility model structural principle schematic diagram.

Fig. 2---1-1 sectional drawing among Fig. 1.

Fig. 3---the utility model uses schematic diagram.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, in the common broken stone pile outside and top parcel one deck tubular type geo-grid 3, form vertical tubular type grill reinforce broken stone pile 1; Tubular type grill reinforce broken stone pile 1 is formed by pore-forming mode commonly used in the engineering by rubble 2, in the certain depth scope vertical tubular type geo-grid 3 is set near 1 top of tubular type grill reinforce broken stone pile.

In the implementation process, form stake hole 5 with conventional pile driving equipment in ground 4 earlier, put into vertical tubular type geo-grid 3 then, reinforcement length is controlled in 4 meters, in stake hole 5, insert rubble 2 through tubular type geo-grid 3, form vertical tubular type grill reinforce broken stone pile 1.

Claims (3)

1. a vertical tubular type grill reinforce broken stone pile is characterized in that forming vertical tubular type grill reinforce broken stone pile in common broken stone pile outside parcel one deck tubular type geo-grid.

2. a kind of vertical tubular type grill reinforce broken stone pile according to claim 1 is characterized in that the tubular type geo-grid is positioned at the top of common broken stone pile.

3. a kind of vertical tubular type grill reinforce broken stone pile according to claim 1 is characterized in that tubular type geo-grid reinforcement length is in 4 meters.

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