Pile

FIELD: foundation building.

SUBSTANCE: pile has body made as shell filled with concrete and formed as members having trough-shaped cross-sections and extending in longitudinal direction. Members have side walls abutting the central wall and extending at obtuse angles from it. The shell has frame. Central walls of frame members are of ellipsoid shape and filled with concrete.

EFFECT: increased load-bearing capacity and reliability.

5 dwg

 

The invention relates to a Foundation, in particular to the structures of short piles.

Known pile [1], which includes a hollow shaft rigidly secured in the lower part of the barrel aperture. The disadvantage of this pile is the fact that the great complexity of the dive its estimated carrying capacity is small.

The closest technical solution of the present invention is pile [2], which includes a barrel filled with material shell made of composite longitudinal pushing in the soil trough-shaped elements. The disadvantage of this pile is its low bearing capacity.

The purpose of the invention is increasing the carrying capacity and reliability of the piles.

The aim is achieved in that pile, comprising a barrel filled with material the shell is made of longitudinal sliding in the soil elements-shaped cross-section with the side edges adjacent at an obtuse angle to medium faces located between the side faces, and each longitudinal element facing an average face to the longitudinal axis of the barrel, according to the invention, the shell is made of a frame. The average faces of the longitudinal members of the frame have ellipsoidal shape and filled with concrete.

Figure 1 is a longitudinal cross section of the pile shaft;

Figure 2 - u-e is ement;

figure 3 is a cross section of the frame shell piles before diving into the ground; node a in figure 3;

figs.4 - shaped element, with an average face and ellipsoidal forms;

figure 5 is a cross section of the pile after a dive into the ground.

In the drawings denote: 1 - the pile shaft; 2 - longitudinal trough-shaped elements; 3 and 4 - steel sheets; 5 - average ellipsoidal face of the trough-shaped element; 6 - lateral sides of the trough-shaped element; 7 - welding seam; 8 - mounting connection; 9 - concrete; 10 - material.

Pile includes (Fig.1-5) barrel frame piles 1 in the form of a filled material 10 shells made of composite longitudinal sliding in the soil elements 2, each of which is made trough-shaped cross-section with side faces 6, attached at an obtuse angle to medium faces 5. Trough-shaped elements facing the average face to the longitudinal axis of the barrel. When this sheath is made of a frame in which the average face of each longitudinal element 2 trough-shaped cross-section made of steel sheets 3 and 4 of different width and has an ellipsoidal shape (figure 4). The side faces 6 of each longitudinal trough-shaped element 2 are aligned with holes through which are passed the Assembly connection 8.

The production of the project form the pile 1 is as follows (Fig.1-5). Hermeti is but connect the steel sheets 3 and 4 are longitudinal welding seams 7 and form a trough-shaped elements 2 with the side edges 6 and an average face 5 (figure 2). Shell piles are collected from a longitudinal trough-shaped elements 2 on the mounting links 8 (figure 3), which, as the immersion of the pile shaft in the hole is removed. The original form of the shell is fixed in the ground at the expense of the educated frame of the trough-shaped longitudinal elements 2. After complete immersion of the skeleton into the well between the sheets 3 and 4, the average face of the longitudinal trough-shaped element 2 serves compressed air, giving medium faces 5 ellipsoidal shape (figure 4), which is resistant frame shell. Then the internal cavity of average faces are filled with concrete 9 (figure 5), increasing the carrying capacity of the frame shell. The received frame is filled with material 10, such as soil with the addition of gravel with a layer-by-layer seal core piles. Not bonded longitudinal elements 2 are moved apart, compacting the surrounding soil.

The ellipsoidal shape of the middle part of the longitudinal element may be formed by attaching the pre-deformed steel sheets to the side edges of the trough-shaped element.

The proposed design of piles can improve its bearing capacity and reliability in the process of sealing allowing soil due to the radial sliding of the frame elements during the filling of the core material. The pile is recommended for use during construction on soft soils.

Light source the key information

1. Patent No. 542790. Pile. Perla E.M., Silver YA, Precin GA, Egorova AB, BI No. 1, 1977.

2. Patent No. 697637. Pile. Kirillov V.A., BI No. 42, 1979.

Pile, comprising a barrel filled with material the shell is made of longitudinal sliding in the soil elements-shaped cross-section with the side edges adjacent at an obtuse angle to the average face that is located between the side, each longitudinal element facing an average face to the longitudinal axis of the barrel, characterized in that the shell is made of frame, with average faces of the longitudinal members of the frame have ellipsoidal shape and filled with concrete.



 

Same patents:

FIELD: building, particularly pile foundation erection.

SUBSTANCE: method involves drilling hole; installing injection pipe in the hole bottom center; installing reinforcement case; injecting cement-and-sand grout through the injection pipe below lower pile end for ground compaction and widened part arrangement; concreting the pile. To create widened part of the pile and to compact ground after concrete hardening cement-and-sand grout is fed under pressure into sealed bag formed of elastic water impermeable material and connected to lower end of ejection pipe so that cement-and-sand grout expands the bag up to reaching necessary bag volume.

EFFECT: increased economy of pile forming, increased ability of clay ground compaction at pile base.

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FIELD: building and construction.

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FIELD: building structures, particularly shallow foundations.

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EFFECT: increased economy of pile forming, increased ability of clay ground compaction at pile base.

4 dwg, 1 ex

Pile // 2263746

FIELD: foundation building.

SUBSTANCE: pile has body made as shell filled with concrete and formed as members having trough-shaped cross-sections and extending in longitudinal direction. Members have side walls abutting the central wall and extending at obtuse angles from it. The shell has frame. Central walls of frame members are of ellipsoid shape and filled with concrete.

EFFECT: increased load-bearing capacity and reliability.

5 dwg

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EFFECT: reduced labor inputs and decreased material consumption.

2 dwg

FIELD: building, particularly to create bored piles in cased wells during building and building structure foundation erection.

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2 cl, 4 dwg

FIELD: building, particularly foundation and retaining wall erection with the use of injection piles.

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EFFECT: simplified structure, reduced cost of pile foundation and retaining wall construction.

21 cl, 3 ex, 3 dwg

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