SU815135A1

SU815135A1 - Device for securing support members with enlarged portion with concrete

Info

Publication number: SU815135A1
Application number: SU762353895A
Authority: SU
Inventors: Виктория Александровна Сайко; Василий Васильевич Коваль; Евгений Алексеевич Томилин
Original assignee: Sajko Viktoriya A; Koval Vasilij V; Tomilin Evgenij A
Priority date: 1976-04-27
Filing date: 1976-04-27
Publication date: 1981-03-23

Description

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Изобретение относитс к механизации устройства фундаментов глубокого заложени и может быть использовано в строительстве дл устройства глубоких опор.The invention relates to the mechanization of the installation of deep foundations and can be used in construction for the installation of deep supports.

Известно устройство дл бетонировани скважин при образовании буронабивных свай цилиндрической формы, включающее воронку с корпусом и емкость с днищем, выполненные в виде створок, прикрепленных т гами к подвижному стержню, размещенному на опорах и соединенному с механизмом стопорени стержн 1.A device is known for concreting wells when cylindrical bored piles are formed, which includes a funnel with a housing and a container with a bottom, made in the form of flaps attached by rods to a movable rod placed on supports and connected to the locking mechanism of the rod 1.

Недостаток свай этого типа - мала несуща способность.The lack of piles of this type is small carrying capacity.

Известно устройство дл бетонировани опор с уширением, включающее обсадную бетонолитную трубу, зонтичный фиксатор и привод его раскрыти 2.A device for concreting supports with broadening is known, which includes a concrete casing, an umbrella retainer and a drive for opening it 2.

Недостаток устройства - об зательное применение лить1х бетонных смесей с повыщенным расходом цемента и снижение качества уширени из-за врезани в него лепестков зонта при его извлечении из скважины .The drawback of the device is the obligatory use of cast concrete mixes with increased cement consumption and a decrease in the quality of broadening due to the embedding of the umbrella petals into it when it is removed from the well.

Цель изобретени - повыщение качества при работе с жесткими бетонными смес ми .The purpose of the invention is to increase the quality when working with rigid concrete mixtures.

Поставленна цель достигаетс тем, что в устройстве дл бетонировани опор с уширением , включающем обсадную бетонолитную трубу, зонтичный фиксатор и привод его раскрыти , зонт фиксатора выполнен из чередующихс эластичных и жестких лепестков, которые шарнирно соединены с нижним торцом обсадной трубы, причем зонт снабжен глубинным вибратором, а жесткие лепестки - датчиками уровн наполнени бетона.The goal is achieved by the fact that in a device for concreting supports with broadening, including a concrete casing pipe, an umbrella clamp and a drive to open it, the umbrella umbrella is made of alternating elastic and rigid petals that are pivotally connected to the lower end of the casing pipe, and the umbrella is provided with an internal vibrator , and hard petals - with concrete level gauges.

На чертеже изображено устройство дл бетонировани опор с уширением, продольный разрез.The drawing shows a device for concreting supports with broadening, longitudinal section.

Устройство состоит из обсадной трубы 1, в торцовой части которой жестко закреплен вписанный многогранник 2 с закрытыми сверху сегментами 3. К гран м глногогранника The device consists of a casing 1, in the end part of which the inscribed polyhedron 2 is rigidly fixed with the segments closed from above 3. To the edges of the polyhedron

Claims

5 2 horizontal hinges 4 are attached two-layer rigid petals 5 and 6, which are connected by an elastic elastic material 7 using rivets 8 of thermoplastic material. In the middle part, the rigid petals are connected by a system of hinges 9 and levers 10 with a coupling 11 which sits freely on the axis of the rod 11, the movement of which is limited by stops 12 and 13 rigidly fixed to the rod 14 whose axial position is fixed by a fixed coupling 15 connected to the faces of the polyhedron 2 spacers 16. Moving the rod up is limited to an annular stop 17. On the rod 14, there is an electric motor 18 and cable grip 19 mounted on top, and a vibrator 20 on the bottom. On the hard petals 5 and b, the terminals of the concrete filling level 21 and cla an 22 to eliminate air pockets. A device for concreting supports with broadening works as follows. After the well has been made and broadened, a general depth measurement is taken and the marks corresponding to the top and bottom of the broadening of the well are recorded on the casing. An umbrella retainer with vibrators is visited by the lower end of the casing 1, and when the hard lobes 5 and 6 are closed, it is lowered into the wellbore. By touching the bottom of the borehole with a vibrator 20 under the pressure of the casing of the casing 1, the hard lobes 5 and 6 are consumed and the umbrella retainer opens. The opening of the umbrella in a predetermined position is maintained by tensioning the cable attached to the grip 19. In this position, the umbrella latch prevents the roof from collapsing and the soil does not enter the concrete mix. As the lower part of the well is filled with concrete, it is compacted by the vibrator 20 and the concrete level is recorded by sensors 21. As the concrete is broadened, the casing 1 is removed, thus releasing the gripping cable 19 to gradually fold the umbrella retainer. Further concreting of the cylindrical part of the support is carried out in the closed position of the rigid lobes 5 and 6. The use of a device for concreting supports with reinforcement makes it possible to use hard concrete and improves the quality of filling the well with concrete. Claim 1. Device for concreting supports with extension, including a concrete casing pipe, an umbrella retainer and opening it, characterized in that, in order to improve quality when working with rigid concrete mixtures, the retainer umbrella is made of alternating elastic and rigid petals, which are pivotally connected to the lower end of the casing, with the umbrella provided with a deep vibrator. 2. The device according to claim 1, characterized in that it is equipped with concrete level sensors mounted on hard petals. Sources of information taken into account in the examination 1. USSR author's certificate number 476359, cl. E 01 D 7/28, 1972

2. USSR author's certificate number 123885, cl. E 02 D 5/72, 1959 (prototype). I 3 P .l1 /

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