SU962449A1

SU962449A1 - Pile

Info

Publication number: SU962449A1
Application number: SU802989092A
Authority: SU
Inventors: Вячеслав Дмитриевич Смирнов; Евгений Миронович Перлей; Георгий Александрович Придчин; Владимир Николаевич Ушаков
Priority date: 1980-10-03
Filing date: 1980-10-03
Publication date: 1982-09-30

Description

(54) СВАЯ(54) PILED

Изобретение относитс к строительству и может быть использовано при возведении фундаментов зданий и сооружений.The invention relates to the construction and can be used in the construction of foundations of buildings and structures.

Известна сва , состо ща из железобетонного трубчатого ствола, который снабжен по низу режущей частью Known pile, consisting of a reinforced tubular barrel, which is provided at the bottom of the cutting part

Недостатком такой сваи вл етс ее небольша несуща способность на вертикальные нагрузки.The disadvantage of such a pile is its small bearing capacity for vertical loads.

Наиболее близкой по технической сущности и достигаемому результату к предлагаемой вл етс сва , включающа железобетонный ствол и расположенный в ез7о нижней части наконечник 2 .The closest in technical essence and the achieved result to the proposed one is a pile, including a reinforced concrete shaft and a tip 2 located in the bottom section of the bottom.

I.Наконечник известной сваи в виде клиньев, обращенных остри ми к продольной оси сваи и объединенных между собой по верху сплошной диафрагмой, котора не позвол ет удал ть грунт из под сваи, что затрудн ет ее погружение в грунт,I. The tip of the known pile in the form of wedges, turned with the tips to the longitudinal axis of the pile and interconnected along the top by a continuous diaphragm, which does not allow removing the soil from under the pile, which makes it difficult to dive into the soil,

Цель изобретени - облегчение погр5 ени сваи в грунт и повышение ее несущей способности.The purpose of the invention is to facilitate piling the pile into the ground and increasing its carrying capacity.

Поставленна цель достигаетс тем, что в свае, включающей полый ствол и размещенный в нижней части наконечник , последний выполнен в виде трубчатого железобетонного элемента с .ножевой частью внизу и наружным уступом по периметру, ширина которого соответствует ширине стенок ствола, причем трубчатый железобетонный элемент вьтолнен с сужающейс кверху полостью и заведен в полость ствола, а стенки ствола раз10 мещены на уступе трубчатого железобетонного элемента и жестко присоединены к нему.The goal is achieved by the fact that in a pile that includes a hollow barrel and a tip placed in the lower part, the tip is made in the form of a tubular reinforced concrete element with a bottom part and an outer ledge along the perimeter, the width of which corresponds to the width of the barrel walls, and the tubular reinforced concrete element is complete with The cavity narrows upwards and is wound into the cavity of the trunk, and the walls of the trunk are located 10 on the ledge of the tubular reinforced concrete element and are rigidly attached to it.

На фиг.1 изображена сва , общий вид и частичный продольный разрез; Figure 1 shows the pile, a general view and a partial longitudinal section;

15 на фиг.2 - то же, поперечный разрез; на фиг.З - узел I на фиг.1.15 in FIG. 2 is the same cross section; on fig.Z - node I in figure 1.

Сва содержит похшй ствол 1 и размещенный в его нижней части наконечник , выполненный в виде трубчато20 го железобетонного элемента 2 с наружным уступом 3 по периметру и ножевой частью 4.The SVA contains an upper barrel 1 and a tip placed in its lower part, made in the form of a tubular reinforced concrete element 2 with an external step 3 along the perimeter and a knife part 4.

ТрубчатЕлй железобетонный элемент 2 заведен в полость ствола 1 и имеет The tubular reinforced concrete element 2 is wound into the cavity of the trunk 1 and has

Claims

25 tapering cavity 5. The metal rings 6 and 7 are mounted on the lower end of the barrel 1 and the shoulder of the tip 3, and the metal RING 7 of the barrel is mounted on the tip's metal ring 6. The metal rings 6 and 7 are supported by kerchiefs 8, between which there are niches 9 designed to install the connecting bolts 10 in them, with the diameter of the holes greater than the diameter of the connecting bolts. Between the tubular element 2 and the inner surface of the barrel 1. a gap 11 is provided, equal to 20-30 mm. The pile is immersed in the ground with the help of a vibrator (not shown). When the pile is immersed, the soil is first removed from under the tip, preferably with a multi-jaw grapple (not shown), and the pile is immersed without removing the soil from the tip cavity. In the course of this last stage of the immersion of the pile, the nozhev part 4 cuts off an array of soil at the end face, which gradually enters the cavity 5 of the tip and, moving upwards relative to its walls, compacted, forming in the cavity of the tip the ground mass of the pile on the ground a significant part of the vertical load. At the same time, the pressure of the groove core causes deformation of the tip of the necnik in the transverse direction, which is accompanied by its displacement relative to the trunk. The proposed pile easily sinks into the ground and has an increased bearing capacity for vertical loads. In addition, the pile has an increased operational reliability due to the lack of pressure of the earth core on the walls of the barrel in it. Claims of the Invention Sva, comprising a hollow trunk and a tip located in its lower part, characterized in that, in order to facilitate immersion in the ground and increase the carrying capacity, the tip is made in the form of a tubular reinforced concrete element with a knife part at the bottom and an outer ledge along the perimeter whose width corresponds to the width of the walls of the trunk, the tubular iron / concrete element is made with a cavity narrowing upwards and wound into the cavity of the trunk, and the walls of the barrel are placed on the ledge of the tubular reinforced concrete element that and rigidly attached to it. Sources of information taken into account in the examination 1.Prudentov A.I. Reinforced concrete piles with a soil core. L., Stroy. Izdat, 1971, pp.8-12, fig. 4.

2. USSR author's certificate No. 681152, cl. E 02 D 5/22, 1977.

FIG. 2

ff

Fig.Z