SU859546A1

SU859546A1 - Apparatus for producing widened heel of pile

Info

Publication number: SU859546A1
Application number: SU782647048A
Authority: SU
Inventors: Владимир Иванович Кулиш; Константин Владимирович Заварзин
Original assignee: Хабаровский политехнический институт
Priority date: 1978-07-20
Filing date: 1978-07-20
Publication date: 1981-08-30

Description

1one

Изобретение относитс к строительному делу, в частности, к оборудованию дл устройства свайных фундаментов.The invention relates to construction, in particular, to equipment for the installation of pile foundations.

Известно устройство, включающее трубчатую сваю с криволинейной частью, в котором уширение п ты сваи достигаетс анкерными выступами, креп щимис шарнирно на упоре 1.A device is known which includes a tubular pile with a curvilinear part in which broadening of the pile five is achieved by anchoring protrusions that are hingedly mounted on the stop 1.

Недостатком известного устройства вл етс сложность конструкции.A disadvantage of the known device is the complexity of the design.

Наиболее близким техническим рещением по достигаемому результату вл етс устройство дл образовани уширенной п ты сваи, включающее полый ствол сваи с направл ющими выступами, сердечник с поворотными элементами и канатами, пропущенными через эти элементы 2.The closest technical solution to the achieved result is a device for the formation of a broadened pile heel, including a hollow pile shaft with guide lugs, a core with turning elements and ropes, passed through these elements 2.

Недостатком этого устройства вл етс недостаточно высока надежность при многократном использовании, так как канаты вл ютс ос ми вращени поворотных элементов и быстро выход т из стро .The disadvantage of this device is not sufficiently high reliability during repeated use, since the ropes are the axes of rotation of the pivoting elements and quickly fail.

Цель изобретени - повышение надежности в работе при многократном использовании устройства.The purpose of the invention is to increase the reliability in operation with repeated use of the device.

Поставленна цель достигаетс тем, что в устройстве дл образовани ущиреннойThe goal is achieved by the fact that in a device for the formation of an enhanced

п ты сваи, включающем полый ствол сваи с направл ющими выступами, сердечник с поворотными элементами и канаты подвески , поворотные элементы выполнены в виде стержней, сердечник имеет верхнюю цилиндрическую часть с призматическимиheels of the pile, including a hollow pile shaft with guide protrusions, a core with turning elements and ropes of the suspension, turning elements are made in the form of rods, the core has an upper cylindrical part with prismatic

5 продольными впадинами, выполненными с возможностью взаимодействи с направл ющими выступами, и коническую часть, на которой расположены стержни, при этом стержни установлены с возможностью поворота относительно продольной оси сердечника .5 longitudinal depressions arranged to interact with the guide lugs, and the conical part on which the rods are located, while the rods are mounted rotatably relative to the longitudinal axis of the core.

На фиг. 1 представлено устройство во врем прохождени ствола сваи, общий вид; на фиг. 2 - то же, в период образовани ущирени ; на фиг. 3 - то же, воFIG. 1 shows the device during the passage of the pile shaft, general view; in fig. 2 - the same, during the formation of a widening; in fig. 3 - the same, in

15 врем извлечени его из ствола сваи.15 time to remove it from the pile shaft.

Claims

The device includes a core 1 with a cylindrical upper and a conical lower surface. In the upper part of the core 1, made with longitudinal prismatic hollows 2, the connection 3 is rigidly fixed, and in the lower part is tapered, the rods 4 are fixed, can be rotated relative to the longitudinal axis of the core 1. The cva 5 is provided with guide lugs b, flange 7 and slots 8. The device operates as follows. The core 1 is inserted into the shaft of the pile 5 by means of a flexible link 3. Due to the sliding of the prismatic valleys 2 of the core 1 along the guides 6 of the pile 5 of the core 1 automatically reaches the working position. In this case, the rods 4, winding the flange 7 along the way, are pressed against the cone-shaped surface of the core 1 and, passing it under the action of their own weight, fall under the flange 7 and the guide protrusions by the vertices of the rods 4 between the longitudinal slots 8. Thereafter, the flexible tension connection 3 with emphasis on the pile head 5, as a result of which the ends of the rods 4 abut against the flange 7, uncoupling the pile of the pile 5 with the slots 8 until the rods 4 are placed in a horizontal position, i.e. until the rods are clicked 4. Then the device with and the flexible link 3 is removed from the pile shaft 5, and if necessary, the pile 5 is added and the cavity filled with concrete. This device allows to increase the reliability of work with its repeated use and to improve the control over the formation of a wider pile of piles. Apparatus of the invention for forming a widened pile head, including a hollow pile shaft with guide lugs, a core with pivoting elements and suspension ropes, characterized in that, in order to increase reliability in the operation of multiple use of the device, the pivoting elements are made in the form of rods, the core has an upper cylindrical part with prismatic longitudinal depressions made with the possibility of interaction with guides and a conical part on which the rods are located and wherein the rods are rotatably mounted about the longitudinal axis of the core. Sources of information taken into account in the examination 1. US patent number 3763655, cl. 61-53, published. 1973.

2. USSR author's certificate number 601352, cl. E 02 D 5/44, 1976 (prototype).