SU1305249A1 - Driven pile - Google Patents

Abstract

The invention relates to the field of construction and improves the impact strength of piles. Sva includes a trunk, the head part 1 of which is made of steel fiber concrete, and the rest part 2 is made of reinforced concrete, and the contact surface of 3 parts of the trunk is made spherical, facing the upper end of the pile, and is outlined by a radius of 0.7-1.0 side lengths of the cross section of the pile. When manufacturing the head part 1, anchors are inserted into it, the contact surface of the barrel parts is made spherical, then the head part 1 is placed into the mold and, as a mortgage part, is formed to the trunk. 2 Il. with v (x: i × (L SP ND 4 CO 7 Phys. /

Description

fO

f5

11305249

FIELD OF THE INVENTION The invention relates to construction, namely, to the construction of piles.

The purpose of the invention is to increase the impact strength of the pile.

FIG. 1 shows the proposed pile, longitudinal section; in fig. 2 shows section A-A in FIG. one.

Sva contains a barrel, the head part 1 of which is made of steel-fiber-reinforced concrete, and the rest part 2 is made of reinforced concrete, and the contact surface of 3 parts of the barrel is filled with a spherical convexity facing the upper end of the pile, and is outlined along a radius equal to 0 a, where O is the length of the cross section of the pile.

The pile is made as follows.

Separately, for example, in a matrix form, the head of the pile shaft is made, laying an anchor in the form of a skeleton or loop 4, and the surface in contact with the pile shaft is filled with a spherical radius of 0.7-1.0 q. Then, the head part 1 is placed in the form for the barrel and, as an embedded part, is fitted to the trunk.

In the process of driving the pile under the hammer blows on the spherical contact surface of the barrel, the pile creates compression forces, which completely eliminates the destruction of the contact point of the barrel parts. When performing a contact surface over a radius of more than 1a, a sufficient reduction effect is not achieved and destruction occurs.

20

25

h in n h in x

and

thirty

. h 35 n

the contact area, if the contact surface is extended over a radius of less than 0.7Q, it becomes necessary to increase the height of the head section to provide the required thickness of the layer to the contact surface, besides, holes are made on the lateral surfaces of the pile head section under the contact area.

When the contact surface is spherically convex upwards, the impact strength of the pile is increased due to the effect of compression of the head of the pile shaft and the possibility of pile destruction during driving is completely eliminated, moreover, it is possible to use increased impact energy on the pile, which reduces to increase productivity, and also provides the possibility of reducing the percentage of reinforcement.

Claims (1)

Invention Formula A pile pile, including a trunk, the head of which is made of steel fiber concrete, and the rest is made of reinforced concrete, about which is, so as to increase the impact strength of the pile, the surface of contact of the parts of the pile is made with a spherical, convex face the upper end of the pile and is outlined along a radius of 0.7-1.0 a, where a is the length of the side of the cross section of the pile. .2 VNIIPI Order 1390/25 Circulation 607 Subscription Proizv.-poly. pr-tie, Uzhgorod, st. Project, 4