US3664139A

US3664139A - Removable self-jetting pile

Info

Publication number: US3664139A
Application number: US862684A
Authority: US
Inventors: Richard F Sexauer
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-10-01
Filing date: 1969-10-01
Publication date: 1972-05-23
Anticipated expiration: 1989-05-23

Abstract

A removable self-jetting pile comprises a body shell, a concrete conically shaped nose portion, and a jetting tube extending from an opening in the nose portion to the upper portion of the shell. The pile is formed by setting one end of the shell in an inverted truncated cone-shaped pouring form, mounting the jetting tube in the truncated end of the form and supporting it within the shell, and pouring concrete into the shell until the pouring form and at least a lower adjacent portion of the shell are filled with the concrete.

Description

[451 May 23, 1972 3,206,936 9/1965 Moor....................................6l/53.64 RM 1 E 8mm 140 Munsey Place, 839,954 1/1907 Raymond..........................6l/53.74X Island FOREIGN PATENTS OR APPLICATIONS (U969 270,563 1914 Germany..............................6l/53.74 21 Appl.No.: 862,684

Primary Examiner-Jacob Shapiro Attomey-Pennie, Edmonds, Morton, Taylor and Adams United States Patent Sexauer [54] REMOVABLE SELF-JE'ITING PILE [72] Inventor:

[22] Filed:

ABSTRACT A removable self-jetting pile comprises a body shell, a

ICIainuSDrawlngFlgures concrete conically shaped nose portion, and a jetting tube extending from an opening in the nose portion to the upper portion of the shell. The pile is formed by setting one end of the shell in an inverted truncated cone-shaped pouring form, mounting the jetting tube in the truncated end of the form and supporting it within the shell, and pouring concrete into the shell until the pouring form and at least a lower adjacent por tion of the shell are filled with the concrete.

6 6 I u n J .f 1| f M... I l i M I m .l.

w l l l l l l 1 II l a I I l l l l l I I I r l l l I Ir a s L 50 2 44443 8 m. l I l 1 l l I I I r 1 I I I I w emm 1 551M 333.31% M "B w ldSfi fifififlb 1 li A 2 11.110 5 r! l 1L4. qmfl; m H l risurlillfi a. u 0 i 6 5 m 1 ,6 S m mm 6 5 "u u 7 m u m m 14 u N" M m m m" m U M m mm W65 A a "u nun .I P n n u 6 C u. .m m m m m f a V. U u m A fi e w a T mom. wd n e S mi-.1 .1 m H a D BB BL mum R "mh a 6426 7 "m 0 2M 999999 m" HHHHHH mm m 614247 s w 9 2 3 956 262386 ,93 9 1]] BMM. %W xxx x 3 3. rl.|.[ 111 2 PATENTEDMAY 23 1912 INVENTOR RICHARD F. SEXAUER BY W 24-2 M...

ZZM

ATTORNEYS REMOVABLE SELF-JE'I'IING PILE This invention relates to building and structure-supporting piles and, more particularly, to a removable self-jetting pile of this type.

Structure-supporting piles for land and marine use are generally formed of steel or wood so that they can be driven into place, but once positioned they cannot be removed with any facility and thus are not adapted for supporting temporary structures. Composite piles, formed of a shell-like body portion and filled with a matrix, have been proposed heretofore but they usually lack the strength to be driven into place and some have been provided with peripheral jet tubes to facilitate their installation.

I have now devised a removable self-jetting pile which can be constructed or assembled at the site of its use and which is self-mounting and readily removable for re-use. The pile of this invention comprises a cylindrical body shell, a substantially conically-shaped concrete nose portion secured to the lower end of the pile shell, and a jetting tube positioned within the pile extending from an exterior opening in the nose portion to the upper portion of the shell. The pile is formed by positioning the lower end of the shell in a pouring form having the shape of an inverted truncated cone, positioning the jetting tube substantially axially of the shell and extending from the truncated lower end of the pouring form to the upper portion of the shell, pouring concrete through the top of the shell in amount sufficient to fill the pouring form and at least a portion of the adjacent lower end of the shell, and removing the pouring form after the concrete has set.

These and other novel features of the present invention will be more fully understood from the following description taken in conjunction with the accompanying drawings in which FIG. 1 is an elevation view, partly broken and partly in section, of the pile in its position in the pouring form;

FIG. 2 is an elevation view of the pile, partly in section, in its finished form; and

FIGS. 3 and 4 and 5 are partial elevation views of a variety of joints which can be used in connecting a plurality of shell sections.

As shown in FIG. 1, the pile of my invention is formed by setting a cylindrical sleeve or shell 6 of plastic, steel, fiber glass, or the like, in an inverted cone-shaped pouring form 7, the lower end of the cone being cut away or truncated to form an opening 8. A pipe nipple 9 is positioned in the opening 8 and then a central tube of plastic, steel, fiber glass, or the like, is secured to the upper end of the nipple with a clamp l 1, or the like. The lower end of the nipple 9 is advantageously threaded so that it can be provided with a similarly threaded jet nozzle 12. The tube 10 extends up to the top of the sleeve 6 and is supported there by being similarly clamped to an upper pipe nozzle 13 which is threaded into a cap 14 which rests on the top of the sleeve 6. The cap is provided with one or more openings 15 through which concrete can be poured. Concrete is then poured into the sleeve through the openings 15 to fill up the conical pouring form 7 and to fill up the bottom end of the sleeve 6 at least above the level of bolts 16 mounted in the sleeve to serve as anchors for the concrete 17. In order to prevent inadvertent spillage of concrete into the jetting tube 6, the top of the upper nipple 13 can be covered with an appropriate cap 18. After the concrete has set, the pile will have the form shown in FIG. 2 after it has been lifted out of the pouring form 7.

As shown in FIG. 2, the pile need not comprise a single body shell or sleeve 6 but can be formed of a plurality of such shells. It will be appreciated, accordingly, that a pile of any desired length can be formed at the site of its use without the awkward requirement of bringing to the site a one-piece shell of the necessary length. Pursuant to the invention, the individual shell sections 6 can be coupled during assembly by any of a number of expedients represented typically by those shown in FIGS. 3, 4 and 5. In FIG. 3, the sections are provided with are smooth surfaced and not threaded. In FIG. 5, the ends of the shell sections 6 are provided with complementary alternating slots 21 and teeth 22.

To use the pile, a source of water under pressure is secured to the upper nipple l3 and the water jets out through the lower nipple 9. The weight of the concrete 17 serves to make the pile descend through the slurry of sand, soil or mud created by the jet. After the pile has been sunk to the desired depth, it can be filled with other material, such as sand, crushed stone, concrete, or the like,if it is to be left there permanently or the pile can be subsequently withdrawn by again connecting a water supply to the jet to loosen the surrounding sand, soil or mud and by then pulling the pile out.

It will be readily seen, accordingly, that the pile of the present invention can be assembled and formed at the site of its use, that it can be virtually any desired length, that it is selfjetting and does not require auxiliary jets to be sunk alongside of it, that it does not require external force to mount it in position, and that it can readily be made a permanent fixture or can be removed readily by virtue of its built-in self-jetting feature.

I claim:

1. The method of forming a removable substantially hollow self-jetting pile which comprises positioning the lower end of a cylindrical shell in a pouring form having the shape of an inverted truncated cone, positioning a jetting tube substantially axially of the shell and extending from the truncated lower end of the pouring form to the upper portion of the shell, pouring concrete through the top of the shell in amount sufficient to fill the pouring form and the adjacent lower end of the shell to secure the concrete to internal projections within the shell, and removing the pouring form after the concrete has set.

Claims

1. The method of forming a removable substantially hollow selfjetting pile which comprises positioning the lower end of a cylindrical shell in a pouring form having the shape of an inverted truncated cone, positioning a jetting tube substantially axially of the shell and extending from the truncated lower end of the pouring form to the upper portion of the shell, pouring concrete through the top of the shell in amount sufficient to fill the pouring form and the adjacent lower end of the shell to secure the concrete to internal projections within the shell, and removing the pouring form after the concrete has set.