RU48547U1 - Headed piles for weak soils - Google Patents

Headed piles for weak soils Download PDF

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Publication number
RU48547U1
RU48547U1 RU2005117437/22U RU2005117437U RU48547U1 RU 48547 U1 RU48547 U1 RU 48547U1 RU 2005117437/22 U RU2005117437/22 U RU 2005117437/22U RU 2005117437 U RU2005117437 U RU 2005117437U RU 48547 U1 RU48547 U1 RU 48547U1
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RU
Russia
Prior art keywords
pile
flanges
soil
construction
diameter
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Application number
RU2005117437/22U
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Russian (ru)
Inventor
А.И. Полищук
А.А. Петухов
С.С. Нуйкин
Р.В. Шалгинов
Original Assignee
Полищук Анатолий Иванович
Петухов Аркадий Александрович
Нуйкин Сергей Сергеевич
Шалгинов Роман Валерьевич
Закрытое акционерное общество научно-производственное объединение "Геореконструкция" (ЗАО НПО "Геореконструкция")
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Application filed by Полищук Анатолий Иванович, Петухов Аркадий Александрович, Нуйкин Сергей Сергеевич, Шалгинов Роман Валерьевич, Закрытое акционерное общество научно-производственное объединение "Геореконструкция" (ЗАО НПО "Геореконструкция") filed Critical Полищук Анатолий Иванович
Priority to RU2005117437/22U priority Critical patent/RU48547U1/en
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Publication of RU48547U1 publication Critical patent/RU48547U1/en

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Abstract

The utility model relates to the field of construction, and can be used in the construction of foundations in industrial and civil construction, both in the construction of new buildings and structures, and during their reconstruction or restoration mainly on soft soils. The task is to increase the load-bearing capacity of the pile and manufacturability, as well as ensuring the adhesion of the body of the pile to the soil while reducing the cost of its construction by eliminating uncontrolled leakage of concrete mixture. The pile contains a perforated injection pipe with flanges fixed along its entire length and a conical tip. The base of the tip is larger than the diameter of the injection pipe and equal to the diameter of the flange. Around the injection tube by injection, a pile is formed in the form of a vertical rod with a wavy side surface. The pile is located in shells whose edges are fixed between the flanges and bend around the side surface of the pile. The shells are made of durable, permeable to binder material, which, when expanding, provides the necessary shape and dimensions of the pile body. The distances between the flanges and the side surface of the corresponding shell located between the flanges are determined depending on the characteristics (uniformity) of the soil. Within a homogeneous soil several flanges can be installed if the thickness (thickness) of a layer of homogeneous soil is more than 2 meters.

Description

The utility model relates to the field of construction, and can be used in the construction of foundations in industrial and civil construction, both in the construction of new buildings and structures, and during their reconstruction or restoration on soft soils.
Known bored pile-injector containing a concrete barrel with a reinforcing cage and injector pipes connected to annular injectors located along the height of the barrel. Ring injectors have a diameter equal to the diameter of the pile and are made in the form of elastic pipes filled with a waterproof, for example, bentonite solution, and the reinforcing cage has an additional annular transverse reinforcement installed at the level of the ring injectors. (A.S. USSR No. 1359411, E 02 D 5/62, publ. 15.12.87.).
The disadvantage of this pile is that for its construction, preliminary drilling of the well with soil removal is necessary. The technological process, as a rule, is carried out in three stages: well formation, installation of injection equipment and injection. To perform these operations, special equipment is required, and installation (reinstallation) of it leads to an increase in the timing of work on the installation of piles.
Also known is a injection pile with broadening of injection in weak water-saturated soils, the upper vertical part of which is a reinforced concrete element with a reinforcing cage reinforced with rings attached to the inside of the cage. The lower broadened part is formed inside an elastic shell, consisting of a garland of seamless shells made of natural or synthetic rubber latexes. (Melnikov B.N., Bogomolov V.A. “Recommendations for the calculation, design and construction of foundations from injection piles (including widening)”, Sverdlovsk, 1983).
The advantage of this pile compared to the first one is that a well is constructed without soil extraction. The steel pipe-shell with the reinforced concrete shoe left in the ground is driven into the soil to the design level, and as the pipes are removed, the cement mortar is pumped into the soil. However, compaction of the soil around the trunk of a pile constructed in this way is not large enough. Also, during the operation of such a pile under load, the pile slips in the pressure broadening zone due to the lack of adhesion to the ground. In general, this is reflected in the bearing capacity of the pile - it, in turn, is also not large.
The closest in technical essence and the achieved result is an injection pile made according to the method according to the patent for the invention of the Russian Federation No. 2238366, E 02 D 5/34, 5/44, 7/46, publ. 10/20/2004 The finished injection pile is formed in the form of a vertical rod with a wavy side surface and includes a perforated injection pipe with flanges fixed along its entire length and a conical tip, the base of which is larger than the diameter of the injection pipe and equal to the diameter of the flange. The injection pipe left in the body of the arranged pile is a supporting element and at the same time acts as a reinforcement. The specified pile is also arranged without extracting soil. To do this, longitudinal grooves are cut on the walls of the well, the indentation of the tip, grooving of the grooves and immersion of the injector pipe are carried out simultaneously, while providing a gap between the wall of the formed well and the injector pipe having perforation along the entire length, and hardening material is injected.
However, in the manufacture of such a pile, uncontrolled leakage of the hardening mixture is likely, which leads to an increase in its consumption and, as a result, an increase in the cost of construction of the pile. In addition, when the injector pipe is pressed in, the holes can become clogged with soil, as a result of which the pile formation is disturbed - the required form of the pile is not achieved. All this leads to a decrease in the bearing capacity of piles.
The objective of the proposed utility model is to increase the bearing capacity of piles and manufacturability, ensuring adhesion of the pile body to the ground while reducing the cost of its construction by eliminating uncontrolled leakage of the hardening mixture.
The problem is solved in that the pile-formed pile, formed in the form of a vertical rod with a wave-like lateral surface, including a perforated injection pipe with flanges fixed along its entire length and a conical tip, the base of which is larger than the diameter of the injection pipe and equal to the diameter of the flange, in contrast to the known one, is equipped with shells fixed between the flanges and enveloping the side surface of the pile, inside which the concrete mixture is injected, while the shells are made of durable, pron It is predominant for cementitious material, which provides during expansion the necessary shape and dimensions of the pile body. In addition, the distance between the flanges and the side surface of the corresponding shell located between the flanges are determined depending on the characteristics of the soil, and the burlap material serves as the shell material.
Next, the utility model is illustrated graphically. Figure 1 shows a pile-forming pile; figure 2 - the moment of the device piles before feeding (injection) of the concrete mixture into the well.
The pile contains a perforated injection pipe 1 with flanges 2 fixed along its entire length and closed by a conical tip 3. The base of the tip is larger than the diameter of the injection pipe and is equal to the diameter of the flange. Around the injector pipe 1 by injection, a pile 4 is formed in the form of a vertical rod with a wavy side surface. The pile is located in shells 5, the edges of which are fixed between the flanges and envelope the side surface of the pile. The shells 5 are made of burlap, and the distances between the flanges and the side surface of the corresponding shell located between the flanges are determined depending on the characteristics (uniformity) of the soil. Within homogeneous
soil, several flanges can be installed if the thickness (thickness) of the layer of homogeneous soil is more than 2 meters.
Piles are as follows. A perforated pipe 1 is installed on the soil surface, at the end of which a closed conical tip 3 is fixed. The diameter of the tip base is larger than the diameter of the pipe 1. The pipe is equipped with flanges 2 and the diameter of each of them is equal to the diameter of the tip base 3. Shells 5 made of burlap are fixed between adjacent pairs of flanges, made in the form of sleeves and assembled into an “accordion” - as the length of each sleeve is greater than the distance between adjacent flanges, between which corresponding shells are fixed. The manufacture of shells from burlap allows the binder of the concrete mixture to penetrate through it into the array of near pile soil, providing improved interaction of the pile with the soil. The immersion of the pipe 1 with a tip 3 and flanges 2 into the soil is carried out using pressing equipment or a vibration absorber (not shown in the figure). Since the diameter of the pipe 1 is smaller than the diameter of the base of the tip 3 and the flanges 2, a gap is formed between the pipe 1 and the wall of the well 6 during immersion of the pipe. Since the perforated pipe 1 is inside the shells 5, clogging of the holes 7 of the pipe 1 with soil is eliminated, which makes it possible to uniformly fill the body piles with concrete mix. After the pipe 1 reaches the design level, the well is plugged in one of the known methods. For example, crushing a plug 8 into a well and holding it with a load of 9. Then, through the pipe 1, the concrete mixture is injected under pressure. The mixture entering the soil is localized inside the shells, forming a predetermined pile form.
At the end of the injection, the soil is pressurized with high pressure, which improves the properties of the soil in the injection area and in the surrounding pile. An injection pipe with a tip is left in the body of the pile - they serve as a reinforcing cage.

Claims (3)

1. A piling pile for soft soils, formed in the form of a vertical rod with a wave-like lateral surface, including a perforated injection pipe with flanges fixed along its entire length and a conical tip, the base of which is larger than the diameter of the injection pipe and equal to the diameter of the flange, characterized in that the pile equipped with shells fixed between the flanges and enveloping the side surface of the pile, inside which the concrete mixture is injected, while the shells are made of durable, permeable to a binder material, which, when expanding, provides the necessary shape and dimensions of the pile body.
2. Pressure pile according to claim 2, characterized in that the shell is made of burlap.
3. Pressure pile according to claims 1 or 2, characterized in that the distance between the flanges and the side surface of the corresponding shell located between the flanges are determined depending on the characteristics of the soil.
Figure 00000001
RU2005117437/22U 2005-06-06 2005-06-06 Headed piles for weak soils RU48547U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2005117437/22U RU48547U1 (en) 2005-06-06 2005-06-06 Headed piles for weak soils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2005117437/22U RU48547U1 (en) 2005-06-06 2005-06-06 Headed piles for weak soils

Publications (1)

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RU48547U1 true RU48547U1 (en) 2005-10-27

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2522358C1 (en) * 2012-12-19 2014-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тюменский государственный архитектурно-строительный университет" (ФГБОУ ВПО "ТюмГАСУ") Manufacturing method of inclined pile with controlled widening
RU2543531C2 (en) * 2013-07-24 2015-03-10 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Volume shaped pile
RU2575660C2 (en) * 2014-06-24 2016-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Орловский государственный аграрный университет" (ФГБОУ ВПО Орел ГАУ) Method of rock production of bored piles and devices for its realisation by v.s.skalnyj
RU2586338C2 (en) * 2014-10-08 2016-06-10 Общество с ограниченной ответственностью НПО "Квантрон" Method of mounting post into soil and post mounted in soil
RU2680625C1 (en) * 2018-04-24 2019-02-25 Акционерное общество "Всероссийский научно-исследовательский институт гидротехники имени Б.Е. Веденеева" Method of injection anchoring of the boulder-pebble soil with unfilled voids and high speeds of filtration flow in them

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2522358C1 (en) * 2012-12-19 2014-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тюменский государственный архитектурно-строительный университет" (ФГБОУ ВПО "ТюмГАСУ") Manufacturing method of inclined pile with controlled widening
RU2543531C2 (en) * 2013-07-24 2015-03-10 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) Volume shaped pile
RU2575660C2 (en) * 2014-06-24 2016-02-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Орловский государственный аграрный университет" (ФГБОУ ВПО Орел ГАУ) Method of rock production of bored piles and devices for its realisation by v.s.skalnyj
RU2586338C2 (en) * 2014-10-08 2016-06-10 Общество с ограниченной ответственностью НПО "Квантрон" Method of mounting post into soil and post mounted in soil
RU2680625C1 (en) * 2018-04-24 2019-02-25 Акционерное общество "Всероссийский научно-исследовательский институт гидротехники имени Б.Е. Веденеева" Method of injection anchoring of the boulder-pebble soil with unfilled voids and high speeds of filtration flow in them

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MM1K Utility model has become invalid (non-payment of fees)

Effective date: 20060607