SU1634759A1 - Cast-in-place cased pile, method of sinking pile, and machine for sinking pile - Google Patents

Abstract

The invention relates to foundation engineering, in particular to ramming. The aim of the invention is to increase the bearing capacity of the erected pile while reducing the labor intensity of the work. The padded casing includes a barrel 1 of annular cross section with an upper solid base plate 2, formed with a lower concave arched profile in longitudinal sections with a surface. Anchors 3 can be made at the end of the slab, or a slot for installing the column can be placed in it. The padded pile can be made wider and have a compacted soil plug 6. 3 s. and 9 eap, b-ly. 8 il. GO 26 s Ј (L

Description

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FIELD OF THE INVENTION The invention relates to fundamental engineering, in particular to printed circuits.

The purpose of the invention is to increase the bearing capacity of the pile being erected while reducing the labor intensity of the work.

FIG. 1 shows a padded pile-shell, vertical section; on Lig.2 - the same, option; on lig.z - device for erection of a ramming pile, vertical section, variant; FIG. 4 is the same; FIG. 5 is a section A-A in FIG. 4; in fig. 6 — an apparatus for making pile-shells in operation; in fig. 7 - the same, at the time of the extraction of the punch, a vertical section; Fig. 8 is the production of sleep at the moment of complete removal of the device from the well.

The padded pile-shell includes a barrel 1 of annular cross section with an upper solid base plate 2, formed with a lower concave arched profile in longitudinal sections with a surface. Anchors 3 may be made at the end of the slab, or a nest 4 may be installed in it to install the column (not shown), the pile-shell may be made with a broadening 5 and have a compacted soil plug 6.

Filling device

Noah’s core pile 1 includes a tubular core 7, a power tube 8 supported on a ring-shaped stamp 9 and a flexible link 10 connected to it. Inside the core 7 there is a stamp made, for example, in the form of a diaphragm 11 or cup 12 with a socket 13 and consisting of the bottom 14 and curvilinear sections 15 attached to the bottom with the possibility of a slight rotation, for example, the curvilinear sections 15 are L-shaped (not shown), and the diaphragm I1 or the bottom 14 contains a fitting 16 that serves to connect the lower cavity with the atmosphere - with the purpose of expiration tim form the air cushion by immersion and vacuum when extracting device and fitted with a locking device 17 as well as fitting 18 with a locking device 17 connecting said slashing with a line (not shown) for supplying reagent anchor. The walls of the glass 12 to facilitate mutual

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The interferences contact the core 7 at particular points by making walls with protrusions 19. A metal ball (not shown) can be pressed into the protrusions 19, providing rolling movement. In order to allow the glass 12 and the core 7 to move together when they are immersed, the glass 12 is supplied with connecting elements 20 or, mainly for stable soils, with an annular structure with a shoe 21 attached to the socket 13 and interacting with the end of the core 7. The device may also be , is provided for injecting fixing agent into the ground plug 6 with injectors 22 attached, for example, to the outer surface of the curvilinear sections 15 and feeding the agent into the cavity through the holes 23 section y. Curvilinear sections 15 can also be interconnected by means of flexible inserts 24 made of an elastic material, ensuring tightness and the possibility of increasing the transverse dimensions of the glass 12. If necessary, removing the glass from the well itself, it can be provided with a cable 25.

The method of erection of a stuffed pile with the use of the device is carried out as follows.

A tubular core 7 provided with a die, such as a diaphragm 11, is inserted into the ground 26 of the base to the design elevation using a submerger (not shown) using a diaphragm 11 to the design elevation with the diaphragm 11 4 piles with a column (not shown). Then, by introducing a ring punch 9 and power pipe 8 into the soil, the annular bore 27 is erected, if necessary, the walls are fixed with hardening material by re-penetrating the ring punch 9. After removing the bore pipe and the annular punch from the well, the reinforcement 28 and installation concrete in it 29. If necessary, the primary immersion of a coiceraphery stamp with a power tube Cdt withheld -. nor the walls of the well maybe you

complete under the protection of concrete, with the ring-shaped stamp 9 taken to be lost. As a result, an increased compacted zone 30 is formed in the soil 26. Before the concrete is placed in the well, the soil plug 6 can be hardened by forcing a fixing agent into it under pressure. The hardening of the soil plug can be performed simultaneously with the immersion of the core by feeding the reagent into the cavity bounded by the diaphragm 11 and the ground plug .6. The reinforcement effect can be enhanced by injecting reagent over the entire surface of plug 6 with the help of injectors 22.

After forming the ring-shaped part of the pile and completely removing the device from the well, reinforcement 31 of the interface part of the interface unit is fed into it, followed by filling the well with concrete to the design elevation.

The proposed device allows to fix both the walls of the well and the ground plug. It is possible to lay the concrete into the well at one time after the device is completely removed and the fittings 28 and 31 are installed, which provides improved conditions for controlling the molding progress and at the same time forming a number of piles after the fixed wells are completed with one set of the device.

Claims (3)

Invention Formula 1. A nabivial pile shell comprising an annular cross section trunk with a ground plug and an upper solid base plate, characterized in that, in order to increase the bearing capacity of the erected pile while reducing the labor intensity of the work, the base plate is made with a lower concave arch profile in longitudinal sections of the surface, and the ground plug is artificially compacted. 2. A method for erecting a ramming casing, including the formation of an annular well by immersing a power tube supported on a ring-shaped die, immersing a tubular core with a die followed by 0 0 five 0 five 0 five 0 five extracting and shaping the stack, characterized in that, in order to increase the bearing capacity of the erected builder while reducing the labor intensity of the work, the tubular core with a stamp located in its upper part is immersed in the ground before the formation of a ring well with simultaneous compression of the soil plug in the cavity of the core, and simultaneously with the formation of the trunk, the formation of the base plate is carried out, „ 3. A method according to claim 2, characterized in that, simultaneously with the compression of the soil side, the anchoring reagent is injected into it under pressure.  4, the method according to claim 3, which is different in that the fixing reagent is injected over the entire surface of the soil plug. 5, A device for erecting a stuffed pile shell containing a tubular core with a stamp and a power pipe supported on an annular stamp, characterized in that, in order to increase the bearing capacity of the pile being erected and reduce the labor intensity of the work, the core stamp is placed in the perchny part of its cavity lockable and a connector and is provided with a hollow branch pipe with a locking device, which communicates a portion of the cavity of the core under the die to the atmosphere, the lower surface of the die being made with a concave arched profile in longitudinal sections. 6. The device according to claim 5, about tl and the fact that the stamp is gray in the form of a dilfragm, 5, about tl and - that the stamp is supplied to it from below and is hingedly attached with the possibility of turning the curvilinear sections forming a glass with a bell at the lower end, the ends of which are adjacent to the inner surface of the core, and the sections are provided with discretely located on the outer surface of the protrusions in contact with the inner surface of the core. 8. The device according to claim 7, about tl and - so that the end everything from the fire is made 7. The device according to claim, each wives adjoining the sections of the curvilinear sections are provided with supporting elements which together form an annular shoe of the bell, and the core is supported on the shoe of the bell. 9. The device according to claim 8, about tl, which is that the curvilinear sections are interconnected tightly by means of inserts of elastic material. 10. The device according to claim 7, about tl and - that the curvilinear sections are made in contact with the inner surface of the core with the possibility of rolling. 6347598 11. Device on PP. 5-10, in that the core punch is provided with an additional hollow pipe with a fitting and a locking device that informs a part of the core cavity under the punch with a source of fixing reagent. 12. The device according to claim 11, characterized in that the curvilinear sections are provided with fixed on their outer surface with injectors for supplying fixing reagent, attached to the fitting of the additional coupling pipe below the locking device “ ten 15 FIG g Fig.Z Aa 15 22 Fm.5 P 27 7 Editor M. Bandura FIG. at Compiled by V.Gonik Tehred A. Kravchuk Proofreader N. Revsk 1634759 FIG. b 29