US1296628A - Stabilizing foundation. - Google Patents

Description

M. J. CUONEY.

STABILPZING FOUNDATION.

APPLICATION FILED OCT. 5, I916.

Patented Mar. 11,1919.

INVENTOR ATTORNEY MICHAEL J. COONEY, OF FORBESTOWN, CALIFORNIA.

STABILIZING FOUNDATION.

Application filed October 5, 1916.

b all whom it may concern:

Be it known that 1, MICHAEL J. CooNEY, a citizen of the United States, residing at Forbestown, in the county of Butte and State of California, have invented certain new and useful Improvements in Stabilizing Foundations, of which the following is a specification.

This invention relates to methods and means for stabilizing foundations for buildings, bottoms and sides of ditches, cuts or canals, whereby the unstable earth may be rendered rigid and held against moving or shifting.

The invention aims further to provide improved means for anchoring friable rock, mud and debris to the solid rock foundation beneath such matter, whereby the latter will be held firmly a ainst movement to provide a rigid or firm foundation.

' With the foregoing objects in view, to-

gether with others which will appear as the description proceeds, the invention consists generally in sinking specially constructed reinforced concrete pillars through friable rock into solid foundation in spaced relation to each other, connecting the uppermost ends of the same together, and coverin or surfacing bottoms and sides with relnforced concrete of thickness deemed necessary, to a level with the top of the pillar casing.

The invention consists further in the novel formation, combination and arrangement of parts, as will be described more fully hereinafter and illustrated in the accompanyin mkawings, and particularly pointedout in t e claims.

In the drawings Figure 1 is-a plan'view of a portion of a canal or ditch bed or foundation treated according to the invention;

Fig. 2 is a vertical sectional view takenthrough the foundation;

Fig. 3 is a detail sectional view illustrating more articularly the pile construction;

Specification of Letters Patent.

Patented Mar. 11, 1919.

Serial No. 123,915.

such slides before the cuts, ditches or canals can be again used. It is the object of this invention to overcome such occurrences of slides or shifting of'bottoms or sides of excavations.

Incarrying out this invention, openings are drilled through the unstable material into the solid rock beneath and relatively near the surface of the bottom or sides of the canal, ditch or cut. Within these openings, casings such as pipes 5 are sunk, the lower ends of the said pipes being firmly embedded 12 to 18 inches in the solid rock at the bottom of the drill holes, when such is attainable and necessary. The length of the casings is such as to extend at their upper ends substantially even with the bottom or side surfaces of the ditch, cut or canal. All water and mud is removed from the casings, and a core pipe is letdown into each of the casings on top of some 18 inches of broken rock previously thrown in. The core pipe is indicated at 6. A jacket 7 of reinforcing steel rods surrounds each core pipe and extends throughout the length of the casing, the said jacket being provided at spaced intervals throughout its length with radially extending spacing rods 8, or reinforcing rods may be otherwise inserted. The core pipe extends 4 to 6 inches above the upper end of the casing, and is provided with a removable screw cap 10.

After the parts have been assembled in the above described manner, reinforced concrete is poured into the casings and tamped while being poured.

Subsurface pillars of this character are arranged in rows at regularly spaced intervals throughout the width and length of the ditch or canal bottom and upon the sides thereof, where stabilization is needed. Steel plates 12 are riveted together for a width and of substantial thickness to correspond with the realized pressure and width of the ditch or canal and with holes to correspond with the protruding core pipe ends 6 are laid over the piles longitudinally along the axis of such ditch or canal bottom and firmly.

screwed down with screw caps 10 over the pillars and reinforced concrete surfacing impressure of the bottom and sides, which pres-- of the ditch or canal.

On either side of the rigid toe substantial steel strips 11 connect the core pipes longitudinally and laterally along the bottom and sides of the ditch or canal and are held in place by screw caps like the plates referred to.

The method of reinforcing the sides and bottoms of ditches, canals and the like also includes surfacing the bottoms and sides with a relatively heavy layer of reinforced concrete 14 to the level of the protruding pillar ends and? while the concrete thus laid is still Wet, the connecting plates and strips above mentionedare placed thereover and connected in the way already stated with the protruding core ends of the various pillars.-

After the mass has set, it is obvious that buckling of the bottom or sliding of thesides will be rendered impossible. It is of course to be understood'that the casing filled with reinforced concrete of which the pillars are formed, will be of such diameter as Will constitute resisting strength in ratio with the pressure they are intended to withstand.

In a case where slides from the sides and oozings from the bottom ha d filled up a. ditch or canal to a point of quiescence throughresistance equaling pressure, stabilization of bottoms and sides of such ditch or canal can be successfully made without removing the debris or mud. Inasmuch as this debris or mud had already established andretained quiesence, the necessity of its retention in place until the process of stabilization of bottom and sides had established safe rigidityis obvious.

In an instance like this, casings are driven through the superincumbent' mud or debris to or into the bottom of the cut or canal; a

drill is then inserted and a bore-hole made the ditch or canal, thus completing one stabilizing reinforced concrete pillar.

When like kind of pillars in such space relation to one another as may be deemed advisable, are inserted in the .bottom and banks of some" or all of a cross section of the area to be stabilized, the mud and debris is ready :to be moved, and while being removed the over-length of easing above the bottom or cut of canal would be sawed off at the proper point in instances where it could not be screwed off at or immediately below the established bottom of the ditch or canal. '65 When the superincumbent mud and debris, and extra casing lengths, are removed from the area being treated, the reinforcedconcrete surfacing should immediately follow, together with the placing of plates and strips as already related.

It is apparent from this disclosure that a simple and thoroughly eflicient means has been provided for attaining the desired ends,

4 and while the above is a description of the opposite end beyond the surface, a core pipe arranged centrally within said casing and protruding beyond the upper open end thereof, a jacket of reinforcing steel rods sur-v rounding said -core pipe, spacing members extending radially from said jacket, the said casing being filled with cQncrete, and a screw ca on the protruding end of said core pipe,- su stantiallyv as described.

2. In a stabilizing foundation, a-hollow casing adapted to be embedded at one end in the ground, a core extending centrally through said casing and protruding at one end beyond the same, the said protruding end being threaded, a plurality of steel rods forming a jacket surrounding said core and being coextensive with said casing, spacing members extending radially from said jacket and engaging said casing at their free ends,

the said casing being filled with concrete, and a screw cap threaded on the outer end of said I core, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

MICHAEL J. COONEY. Witnesses:

AsA BURTON HALL, JOHN MILLS.

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