SU746043A1 - Arrangement for making hole for a filled-in pile - Google Patents

Description

(54) DEVICE FOR WELL FORMATION

one

The invention relates to the field of construction, and more specifically to the formation of wells under the stuffed pile with a width in the upper part of the trunk.

A device for the formation of a broadening in the upper part of a driving pile shaft is known, which involves tamping the hole around the head of the driving pile with a specially made tamper and subsequent concreting of the hole 1.

A disadvantage of this device is the need for accurate installation of the tamper, the inevitable jamming of the tamper, often causing destruction of the heads of the piles.

The closest of the known technical solutions to this invention in its essence and the achieved result is a device for the formation of a well under a stuffed pile, including a pointed bar, fixed on guide 2.

A disadvantage of the known device is that performing a wiring in the upper part of the well leads to a significant complication of the technology and the cost of construction. UNDER FILLING DAYS

The purpose of the present invention is to reduce the cost of work by simplifying production technology.

This goal is achieved by the fact that a known device for forming a well under a stuffed pile, which includes a pointed rod mounted on a guide, is equipped with a shoe in which a shtanga with the possibility of vertical movement and a removable check stopping the rod is placed in the center of the 10th shoulder-strap.

FIG. 1 - a general view of the device;

in fig. 2 - device after formation

wells and strains; in fig. 3, 4, 5, 6, 7 -

successive stages of the device.

The described device for the formation of

 wells under the pile pile includes

. pointy bar 1 attached to

the guide 2 bashmak 3, in which

the center is placed shtanga 1 with the ability

vertical movement and a removable rail 4, stopping the rod 1 relative to

Shoe 3.

The shoe 3 has a longitudinal channel in the center, through which the shtanga 1 moves. A removable check 4 passes through stops 5,

welded to the shoe 3. After removing the checks 4, the rod 1 can be freely mixed with respect to the shoe 3.

The device works as follows;

The shoe 3 and the rod 1, which are fixedly fixed relative to each other by means of checks 4, are raised along guide 2 and are dropped from a certain height.

After the shoe 3 is submerged in the ground at the design depth of the check 4, the well 6 is punched and the rod 6 is punched through. The shoe 3, in this case, plays the role of a conductor.

After punching the well 6 to the design depth, the rod 1 is extracted and concrete is compacted into the well in portions, compacted by the rod.

After the well 6 is filled with concrete 7 to the bottom of the shoe 3, the rod 1 is connected with a shoe by means of a check and the device is removed from the ground, after which the broadening 8 in the upper part of the barrel is concreted, leaving, if necessary, a glass for installing reinforced concrete framework columns or laying anchor elements for installation of steel columns.

The use of a device for the formation of a well under a stuffed pile allows

DECREASE the cost of a pile foundation to 40%.

Claims (2)

1.Tarasov, MV and others. Efficiency of using piles reinforced with reinforced concrete tips in subsiding soils of the city of Novosibirsk. Collection of reports and reports on pile foundations, BashNIstroy, Ufa, 1968, p. 409-412. 2. Yermoshkin P. M. Ways of drilling under ramming piles without excavation. Foundations, foundations and soil mechanics. № 4, 1976, p. 14-16. 1 / 7) 7, go , ) Fig-3 Phage. U 1 Fig.b  Jt ABOUT