SU1544891A1 - Method of constructing cement-earth pile - Google Patents

Abstract

The invention relates to the construction and is used in the construction of pile foundations by mixing local soil with ground materials. The purpose of the invention is to improve the quality of the pile being made and to simplify the manufacturing technology. This is achieved by forming a leader well in the soil with radial longitudinal cavities 5.6 and filling each of the components of the filler 8.9 into the corresponding cavity after separating them from each other using an inventory diaphragm 7. Then the inventory diaphragm 7 is removed and the formation of a shaft piles mixing components with soil undisturbed structure in the zone with a radius equal to the sum of the values of the radius of the leader well and the length of the cavity. 4 il.

Description

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The invention relates to the construction and. Can be used in the construction of pile foundations by mixing local soil with a live material.

The purpose of the invention is to improve the quality of the pile being made and to simplify the manufacturing technology.

FIG. Figure 1 shows a scheme for the formation of a well by a working body at the time of its extraction; in fig. 2 - well with installed inventory diaphragm dividing cavities, filled with filler components, cross section; in fig. 3 the same at the time of mixing the filler components with the soil, a longitudinal section; in fig. k is a section A-A in FIG. 3

A method for manufacturing a cement pile includes forming a leader well 1, for example, using a working body k, immersed in soil 3, equipped with ribs 2, forming radial longitudinal cavities 5 and 6. After removing the working body 4 along the axis of the well, set an accessory diaphragm 7 separating the cavities from one another, into which the components of the filler are fed separately, for example, in the tare 8 and inert 9 materials. After filling the cavities 5 and 6, the inventory diaphragm is removed. Using a drill mixer 10 in a zone whose radius is equal to the total size of the leader well radius and cavity length, soil 3 of the undisturbed structure is drilled with its interfacing 8 and inert 9 materials. Since the dimensions of the cavities 5 and 6 are selected from the condition that their volume strictly corresponds to the volume of one of the filler components placed in each cavity, when it is filled with the corresponding component, its dosage occurs

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If cavities are given a different shape, it is possible, if necessary, to increase the percentage, for example, of a perimeter at the periphery or, on the contrary, along the axis of symmetry of a future pile, i.e. vary the strength of the pile material over its horizontal section. The number of cavities is determined depending on the number of components present in the mixture. In soils with low moisture content, the method provides for the possibility of water supply by any of the known methods.

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The method allows high-quality mixing of a multicomponent cement-ground mix, including with coarse aggregate, directly in the well, eliminating preliminary mixing, as well as the need to transfer to the inert and inert materials from the center to the periphery.

Claims (1)

Invention Formula A method for manufacturing a cement pile, which includes the formation of a leader well in the ground, filling of the filler components and formation of the pile shaft by mixing an undisturbed structure with the soil, which in order to improve the quality of the produced pile and simplify the manufacturing technology, the well is formed with radial longitudinal cavities prior to filling the components along the axis of the well, establish a separation diaphragm separating the cavity, and each component is placed in the cavity, where, after filling with the components, the inventory diffusion is extracted, and the mixing carried out in the zone, the radius of which is equal to the total value of the radius of the leader well and the length of the cavity. ////// / Phie.1 fig.Z