SU962452A1

SU962452A1 - Pile

Info

Publication number: SU962452A1
Application number: SU813251570A
Authority: SU
Inventors: Станислав Алексеевич Владимиров; Валентин Григорьевич Гринь
Original assignee: Кубанский Ордена Трудового Красного Знамени Сельскохозяйственный Институт
Priority date: 1981-02-27
Filing date: 1981-02-27
Publication date: 1982-09-30

Description

(54) СВАЯ(54) PILED

Изобретение относитс к строительству , в частности к .конструкци м железобетонных свай.The invention relates to the construction, in particular to reinforced concrete piles.

Известна сва , включающа ствол с каналом и наконечник с приспособлением в виде жестко соединенной с наконечником рабочей головки, снабженной системой сопл Лав,ал , соеди ненных с каналом в стволе ijНедостатком такой сваи вл етс невысока эффективность ее погружени , так как после проходки возникает необходимость обратной засыпки . Кроме того, указанна сва характеризуетс сложностью изготовлени рабочей головки, снабженной системой сопл Лавал , а также необходимостью подачи под высоким(200-300 атм) давлением газа в рабочую головку.Known pile, including the barrel with a channel and a tip with a device rigidly connected to the tip of the working head, equipped with a system of nozzles Love, al, connected to the channel in the barrel ij The disadvantage of such a pile is its low efficiency of its immersion backfill. In addition, this pile is characterized by the complexity of manufacturing the working head, equipped with a Laval nozzle system, as well as the need to supply gas at a high (200-300 atm) pressure to the working head.

Наиболее близкой к предлагаемой вл етс сва , включающа ствол с П-образным стаканом и наконечник с выступом, заведенным в стакан ствола 2.Closest to the present invention is a pile comprising a barrel with a U-shaped cup and a tip with a protrusion inserted into the cup of the barrel 2.

Недостаток известной сваи - низка эффективность ее погружени .The lack of a known pile is the low efficiency of its immersion.

Цель изобретени - повышение эффективности погружени сваи.The purpose of the invention is to increase the efficiency of the pile driving.

Поставленна цель достигаетс тем, что в свае, включающей ствол с П-образным стаканом и наконечник с выступом, заведенным в стакан ствола, выступ наконечника снабжен П-образным оголовком в виде noiaiuн , а между оголовком и дном П-образного стакана образована заполненна жидкостью полость, в кото10 рой установлены электроды, соединенные с источником импульсного тока, причем ствол свободно оперт на наконечник , а в теле ствола и стакана образован сквознс.:, сообщающийс с The goal is achieved by the fact that in a pile that includes a barrel with a U-shaped cup and a tip with a protrusion inserted into the barrel's glass, the protrusion of the tip is equipped with a U-shaped tip in the form of noiaiun, and between the tip and the bottom of the U-shaped cup there is a cavity filled with liquid , in which electrodes are installed, connected to a source of pulsed current, with the barrel freely supported on the tip, and a through-body is formed in the body of the barrel and cup:

15 полостью вертикальный канал.15 cavity vertical channel.

Оголовок и стакан могут быть сна жены опорными фланцами и упорами, а между стволом и наконечником в зоне Опирани могут быть установле20 ны аммортизирующие прокладки. Ствол может быть также выполнен с про-, дольными пазами, в которых размещены проводники.The cap and cup can be worn with support flanges and stops, and amortization pads can be installed between the barrel and the tip in the Reopni area. The barrel can also be made with a pro-longitudinal grooves in which the conductors are placed.

На чертеже изображена предлагае25 ма сва , поперечный разрез.The drawing shows a proposal for a cross-section.

Claims

Sva consists of a barrel 1 with a U-shaped cup 2 and a tip 3, which is made movable with a protrusion 4 and has optic flanges 5 and a cushion 30 of congestion 6. In this case, the protrusion 4 of the tip 3 is equipped with a U-shaped angle 7 in the form of a piston with an emphasis 8, moving inside a U-shaped cup 2 located in the barrel 1, having stops 9, and connected with a vertical channel 10, passing through the body of the barrel 1 and communicating with a cavity 11 filled with liquid and formed by the tip 7 and the bottom of the U-shaped cup 2 At half 11, electrodes 12 are installed, the output of which is in lethargy longitudinal call claim 13 barrel 1 is isolated. The electrodes 12 are connected to a source of high voltage impulse currents (not shown) with wires laid in the slots 13. The proposed pile is immersed as follows. The pile is hung on the slings, and water is fed into the cavity 11 on a cob of 10 barrels 1. When current pulses are applied from the current source to the electrodes 12 located in the water-filled cavity 11, a high-voltage discharge arises between the electrodes, as a result of which an explosion occurs and the shock wave acts on the P-head 7, when moving the tip 3 sinks into the ground , while the immersion of the tip 3 is limited by the stops 8 and 9. Under the action of its own weight, the SVA feeds onto the supporting flanges 5, while compressing the shock absorber b, the impact force is transferred to the tip 3, which contributes to its even greater to live At the same time, the mass of the tip with a piston-like angle is much less than the mass of the pile itself, thus the speed of movement of the tip during an electrohydraulic impact can many times exceed the speed of movement of the pile itself, which is clearly seen from the ratio of kinetic energies 1 1 m V- 1 mxVg 2 2 where is, respectively, the mass and speed of the pile; m3.Vi is respectively the mass and speed of the tip. For example, if the mass of the pile is in par | more tip mass t n-m, then V V - Vn. When the next pulse is applied, the cycle is repeated and the pile is submerged to the design mark without significant development of the bottom, and no backfilling and sealing of the gap between the pile and the borehole wall is required. In addition, high pressure is formed directly in the cylindrical housing and no additional installation is required to create a high pressure working medium. All this increases the efficiency of pile driving. Claim 1. Sva, comprising a barrel with a shaped glass and a tip with a protrusion inserted into a barrel glass, characterized in that, in order to increase the efficiency of immersion, the tip projection is provided with a U-shaped tip in the form of a piston, and between the tip and the bottom of a -shaped glass is formed by a cavity filled with liquid, in which electrodes are installed that are connected to a source of pulsed current, with the barrel freely supported on the tip, and in the body of the barrel and glass it is formed through, communicating with the cavity vertically channel. 2.Sva POP.1, characterized in that the tip and the cup are provided with supporting flanges and stops, and amortizing gaskets are installed between the barrel and the tip in the bearing zone. 3.Sva pop.1 and 2, characterized in that the trunk is made with longitudinal grooves in which the conductors are separated. Sources of information taken into account in the examination 1. The author's certificate of the USSR 592926, cl. E 02 D 5/32, 1978.

2. Authors certificate USSR 585253, cl. E Q2 D-5/44, 1976, (prototype).