SU706490A1 - Butt joint of sections of composite piles - Google Patents

Description

(54) JOINT CONNECTION OF COMPOUND PILED SECTIONS

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5 The invention relates to the field of construction, namely to the butt joints of the composite pile foundations of buildings and structures. . ..;: Butt joints of castle-type composite piles are known, having metal box-like elements embedded in pile sections and joined by welding, bolts or wedges 1

However, such butt joints are metal consuming and laborious to manufacture. And.,.

The closest technical solution to the invention is a joint connection of sections of composite piles, including mortgages placed respectively in the joined sections. Tubes and coaxial reinforcement outlets, filling from hardening material 2.;

Such a butt joint. It has reinforcements in the joined pile, and in the head of the previously clogged sections - a thin steel face plate and tubes attached to it, o.bending holes for the pins.

Sya before driving is maintained depending on the setting time of the glue and temperature conditions from a few hours of access time. In this period, the period of the pile section must be rigidly fixed relative to the vertical axis by a pile driver or a special device. Only after the glue has hardened is it made further

About immersion composite piles to the desired depth. ...,.

The disadvantages of such a joint are the impossibility of immersing the pile immediately after joining, 5 the need to secure the joined section during the setting period. adhesive, low joint strength in the most adverse for the joint operation period of driving with significant dynamic effects on the adhesive joint and the need to warm up the joint zone during winter production.

The purpose of the described invention is to provide the possibility of driving the sections immediately after the connection until the filling material is cured.

The goal is achieved by those. sections of composite piles, including embedded tubes placed in the joined sections and coaxial outlets of reinforcement, filling out of hardening material, the inner surface of the embedded tubes is performed. on alternating protrusions and vpa: DINAMI. ... The drawing shows schematically the described butt joint, about the longitudinal section .; The butt joint includes seams: the forged section 1, having reinforcing rods 2, the continuation of which are embedded tubes 3, fixed by welding. On the inner surface of the tubes 3 are made., Alternating protrusions 4 and depressions 5, formed by deformation, tubes or punches —... Coy. Connection. Includes also CTIJ section 6 with valves: 7, located at the same time as -, am 3 sections il. Filling of hardening material in the drawing conventionally not shown. To protect the head from; PCTs-1 from destruction delivered; We are Sed1 “and 8.. .. :. ... -. ; . - Section 1 is driven into the ground, after which the embedded tubes are filled with a cement mortar on an expanding cement with an epoxy compound at half the depth. Then go to the joint. .dits section b of the composite pile so that the protruding from the section., the release of reinforcement fell into the tube 3, for which; , in the head of section 1 there are conical depressions 9. First, the filling of section b is carried out in single blows, with the coils of the reinforcement entering the tubes and due to the elastic deformations of the metal and the friction. Vyzhi: skimmed glue composition fills pipes

ki and is extruded at the end of section 1. Further, the killing after the contact of the ends of the sections is performed as usual. Seizure hardening material in the joint occurs after driving a pile. In the process of securing the hardening material, the joint is not subjected to dy lH effects. The use of the described invention provides the possibility of driving piles immediately after docking, reducing labor costs and strength and. the reliability of the joint of piles due to more favorable conditions for grasping hardening material, as well as the availability of year-round production.,. . Invention Formula; In-line joining of sections of composite piles, including embedded tubes placed in the joined sections, and outlets of reinforcement coaxial to them,., Filling out of hardening material, different. By the fact that, with the aim of ensuring the possibility of blocking the sections immediately after the connection of the filling material to the hardening, the inner surface of the embedment tubes is made with alternating with protrusions and hollows :,. Sources of information taken into account in the examination .1. U.S. Patent 2,698,520, Cl. 6156, published. 1955, 2. B.Ai bicycle breeds and others. Pile junction during driving. -. About. Gmshlennaya construction, 1977, 3, p. . .