SU802461A1

SU802461A1 - Method of constructing a foundation

Info

Publication number: SU802461A1
Application number: SU792754804A
Authority: SU
Inventors: Юрий Владимирович Власов
Original assignee: Vlasov Yurij V
Priority date: 1979-04-16
Filing date: 1979-04-16
Publication date: 1981-02-07

Description

(54) СПОСОБ ВОЗВЕДЕНИЯ ФУНДАМЕНТА(54) METHOD OF CONSTRUCTION OF THE FOUNDATION

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Изобретение относитс к строительству, а именно к способам возведени фундаментов на слабом основании.The invention relates to the construction, in particular to methods for the construction of foundations on a weak foundation.

Известен способ возведени фундамента на слабом основании, включающий устройство гравийных или песчаных подушек и установку фундаментного блока 1.There is a known method of erecting a foundation on a weak foundation, which includes the installation of gravel or sand pads and the installation of the foundation block 1.

Наиболее близким техническим решением к изобретению вл етс способ возведени фундамента, включающий образование котлована посредством сбрасывани трамбовки-штампа на поверхность грунта и установку в котловане фундаментного башмака 2.The closest technical solution to the invention is a method of building a foundation, which includes the formation of a pit by dropping a tamping punch on the ground surface and installing a foundation shoe 2 in the pit.

Недостатком известных способов вл етс низка несуща способность фундамента .A disadvantage of the known methods is the low bearing capacity of the foundation.

Цель изобретени - повышение несушей способности фундамента.The purpose of the invention is to increase the bearing capacity of the foundation.

Это достигаетс тем, что в известном способе возведени фундамента, включающем образование котлована посредством сбрасывани трамбовки-штампа на поверхность грунта и установку в котловане фундаментного башмака, перед сбрасыванием трамбовки-штампа погружают в грунт на глубину заложени фундамента кольцевуюThis is achieved by the fact that in a known method of building a foundation, including the formation of a pit by dropping a tamper-stamp onto the ground surface and installing a foundation shoe in the pit, before dumping the tamper-die, it is immersed in the ground at a depth of foundation of the foundation ring.

оболочку, охватывающую контур днища котлована и размещенную соосно вертикальной оси котлована, при этом внутренний диаметр кольцевой оболочки равен 1,10-1,35 диаметра трамбовки-штампа, а высота ее равна 0,30-0,35 диаметра трамбовки-штампа .the shell enclosing the contour of the pit bottom and located coaxially with the vertical axis of the pit, while the inner diameter of the annular shell is 1.10-1.35 tamper-stamp diameter, and its height is 0.30-0.35 tamper-stamp diameter.

На фиг. 1 схематически показано погружение кольцевой оболочки; на фиг. 2 - разрез А-А фиг. 1; на фиг. 3 - схема образовани столба упрочненного грунта.FIG. 1 schematically shows the immersion of the annular shell; in fig. 2 - section A-A of FIG. one; in fig. 3 is a diagram of the formation of a pillar of hardened soil.

Способ реализуетс следующим образом .The method is implemented as follows.

На очищенной от растительного сло и спланированной поверхности грунтового основани устанавливают кольцевую оболочку 1, а на нее помещают кондуктор 2 с оголовком 3. Ударным способом погружают кольцевую оболочку 1 на глубину заложени фундамента Н. Кольцева оболочка 1 в нижней части имеет фланцевый выступ 4, т. е. наружный диаметр оболочки 1 превышает диаметр кондуктора 2, и поэтому извлечение кондуктора 2 происходит без особых трудностей.An annular casing 1 is installed on the ground surface cleared of the plant layer and the planned surface, and a jig 2 with a tip 3 is placed on it. The annular casing 1 is immersed in the percussion manner at the foundation depth N. E. The outer diameter of the shell 1 exceeds the diameter of the conductor 2, and therefore the removal of the conductor 2 takes place without any particular difficulty.

Claims

After removing the conductor 2 with the tip 3, proceed to stamping the cotLivan 5 by sequential grinding of the stamp-stamp 6 strictly along the axis of the annular casing 1 (cm, fig. 3). Typically, the diameter of the annular shell 1 is equal to 1.1 - 1.35 diameter tamping-stamp 6, and its height - 0,300, 35 diameter tamping-stamp. When stamping a pit 5, the annular shell 1 is mixed down. In the process of moving the casing at the sole 7 of the excavation 5, a pillar of reinforced soil 8 with a soil core 9 is formed. A precast foundation shoe (not shown) is installed in the stamped excavation 5, repeating the tamping-punch in shape and dimensions. The application of the foundation erection method allows to increase the bearing capacity of the foundation by creating a pillar of reinforced soil under the base of the foundation, the lower part of which is enclosed in an annular casing, as well as adhering from below to this column of groundwater. Claims The method of erecting a foundation, including the formation of a pit by dropping a tamper-stamp onto the ground surface and installing a foundation shoe in the pit, characterized in that, in order to increase the bearing capacity of the foundation, the ring shell is dipped into the ground before the tamping-stamp is dropped , covering the contour of the bottom of the pit and placed coaxially with the vertical axis of the pit, while the inner diameter of the annular shell is 1.10-1.35 of the diameter of the rammer ki-stamp, and its height - 0.30-0,35 diameter tamper-stamp. Information sources,. taken into account during the examination 1.Costering E.V. Foundations and foundations. M., Higher School, 1966, p. 173-175.

2. USSR author's certificate number 314856, cl. E 02 D 27/28, 1971.

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FIG. five