RU49029U1 - Stacked piles - Google Patents

Stacked piles Download PDF

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Publication number
RU49029U1
RU49029U1 RU2005116877/22U RU2005116877U RU49029U1 RU 49029 U1 RU49029 U1 RU 49029U1 RU 2005116877/22 U RU2005116877/22 U RU 2005116877/22U RU 2005116877 U RU2005116877 U RU 2005116877U RU 49029 U1 RU49029 U1 RU 49029U1
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RU
Russia
Prior art keywords
pile
flanges
construction
soil
diameter
Prior art date
Application number
RU2005116877/22U
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Russian (ru)
Inventor
А.И. Полищук
А.А. Петухов
С.С. Нуйкин
Original Assignee
Полищук Анатолий Иванович
Петухов Аркадий Александрович
Нуйкин Сергей Сергеевич
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, Закрытое акционерное общество научно-производственное объединение "Геореконструкция" (ЗАО НПО "Геореконструкция") filed Critical Полищук Анатолий Иванович
Priority to RU2005116877/22U priority Critical patent/RU49029U1/en
Application granted granted Critical
Publication of RU49029U1 publication Critical patent/RU49029U1/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 bearing capacity of piles and manufacturability while reducing the cost of its construction by eliminating uncontrolled leakage of concrete mix. 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 impermeable 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 mainly 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. 13 59411, 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. October 20, 2004. The finished injection pile is formed in the form of a vertical rod with a wave-like lateral 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 serves 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, 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 Nitzan material providing the expansion required shape and dimensions of the pile body - tarpaulin latex. 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.
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 tarpaulin, 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 a homogeneous soil several flanges can be installed if the thickness (thickness) of a 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 base of the tip 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 base of the tip 3. Canvas covers 5 are made between adjacent pairs of flanges, made in the form of sleeves and assembled in an "accordion" - as the length of each sleeve is greater than the distance between adjacent flanges, between which corresponding shells are fixed. 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 (4)

1. Pile-shaped 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, characterized in that the pile is equipped with shells, fixed between the flanges and envelopes the side surface of the pile, inside which the concrete mixture is injected, while the shells are made of durable impermeable material, providing guide the expansion of the required shape and dimensions of the pile body.
2. Pressure pile according to claim 1, characterized in that the shell is made of tarpaulin.
3. Pressure pile according to claim 1, characterized in that the shell is made of latex.
4. Pressure pile according to claims 1 to 3, 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
RU2005116877/22U 2005-06-01 2005-06-01 Stacked piles RU49029U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2005116877/22U RU49029U1 (en) 2005-06-01 2005-06-01 Stacked piles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2005116877/22U RU49029U1 (en) 2005-06-01 2005-06-01 Stacked piles

Publications (1)

Publication Number Publication Date
RU49029U1 true RU49029U1 (en) 2005-11-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2005116877/22U RU49029U1 (en) 2005-06-01 2005-06-01 Stacked piles

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2550620C1 (en) * 2014-01-09 2015-05-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) Method for construction of injection pile
RU2637002C1 (en) * 2016-11-30 2017-11-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) Method of arranging injection pile
RU2669601C1 (en) * 2017-11-07 2018-10-12 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Device and method for formation of broadening in borehole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2550620C1 (en) * 2014-01-09 2015-05-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) Method for construction of injection pile
RU2637002C1 (en) * 2016-11-30 2017-11-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) Method of arranging injection pile
RU2669601C1 (en) * 2017-11-07 2018-10-12 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Device and method for formation of broadening in borehole

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Legal Events

Date Code Title Description
MM1K Utility model has become invalid (non-payment of fees)

Effective date: 20060602