RU2678744C1 - Pile foundation for equipment - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to pile foundations and can be used to transfer the load from the ground to the pump unit installed on the foundation. Pile foundation for the equipment includes piles and a frame of beams installed on them and with the wells for anchor bolts, with the wells closed with lids and placed in frame assemblies coaxially with piles. Inner diameter of the well is chosen greater than the outer diameter of the pile, while the upper end of the pile is inside the well and does not reach its lid. Number of anchor bolts for one well is chosen to be equal to two and their lower ends are bent at an acute angle. At the upper end of the wells there are two through openings located along the diameter of the well, with the bent end of the anchor bolt entering each through opening of the well, with the frame beams located between the two anchor bolts of the wells, at the same time, both anchor bolts of one well pass upwards through the openings of the plate mounted on top of the frame beam, while nuts protruding from the well to the frame beam are wrapped on the threaded part of the anchor bolts protruding from the plate. Upper end of each pile is made in the form of a glass, and a ring in the form of a washer is welded to the external wall of the pile above the lower end of the well, the outer diameter of which is less than the internal diameter of the well. Horizontally placed disc is welded to the inner wall of the well under the through openings. Rubber disc is installed on the upper end of the pile, the diameter of which is equal to the inside diameter of the well. On the ring of the pile there is a steel washer, the outer diameter of which is chosen equal to the inner diameter of the well, and the inner diameter is chosen larger than the outer diameter of the pile. Rubber bush is installed between the rubber disk and the steel washer into the gap between the inner wall of the well and the outer wall of the pile.EFFECT: technical result consists in reducing the dynamic loads transferred from the equipment to the piles, increasing the life of the foundation.1 cl, 2 dwg

Description

The invention relates to pile foundations and can be used to transfer the load from the soil installed on the foundation of the pumping unit.

Known metal pile foundation for a rocking machine of a well installation (Patent RU 150462, IPC E02D 27/44, published. 02.20.2015 Bull. No. 5), including piles made in the form of vertically arranged pipes, at least two of which are rigid interconnected by a connecting beam. The foundation consists of four pairs of pipes vertically spaced at a distance from each other that are not interconnected, but each pair is rigidly connected to each other by a connecting beam for installing the base of the rocking machine. Each beam is made in the form of a channel for mounting it on piles, and plates welded to the channel from two ends in its upper part with holes for connecting them to piles using bolts. The ends of each pile are made in the form of a screw and with a pointed end. To the upper parts of four pairs of non-connected vertically arranged pipes and to the upper parts of the second, third and fourth pairs of pipes rigidly connected by connecting beams, two intersecting corner profiles are welded, which are welded to each other using plates, for fastening these vertical pipes. Plate with holes for centering bolts and adjusting the base of the rocking machine base are welded to the first and fourth beams. The beams are equipped with additional clamping beams with grooves, studs and nuts for tightening the beams, the base of the rocking machine and clamping beams. A disadvantage of the known device is the design complexity and low efficiency of vibration isolation of piles due to the rigid connection of the base of the rocking machine with piles.

Closest to the proposed one is the pile foundation for equipment (Author. Witness. USSR 881207, M. Cl. E02D 27/44, published. 11/15/81 Bull. No. 42), including piles and a frame of beams mounted on them and with wells for anchor bolts, and the wells are closed with covers and placed in the nodes of the frames coaxially to the piles. In the prototype, dynamic loads from the pump unit installed on the foundation are transferred to the piles, because frame beams are fixedly connected to piles. The sensitivity of pile foundations is high to the dynamic loads of the equipment. Because of this, piling occurs, and thereby reduces the life of the foundation.

The task of the invention is to reduce dynamic loads transmitted from equipment to piles.

The problem is solved in that in the pile foundation for equipment, including piles and a frame made of beams and with wells for anchor bolts mounted on them, the wells being closed by covers and placed in the frame nodes coaxially to the piles, the new one is that the inner diameter of the well is chosen to be larger the outer diameter of the pile, while the upper end of the pile is inside the well and does not reach its cover, the number of anchor bolts for one well being chosen equal to two and their lower ends are bent at an acute angle, and at the upper end to There are two through holes located along the diameter of the well, moreover, the bent end of the anchor bolt enters each through hole of the well, and the frame beams are located between two anchor bolts of the wells, while both anchor bolts of one well pass up through the holes of the plate mounted on top of the beam the frame, while nuts protruding onto the threaded part of the anchor bolts protruding from the plate tighten the well to the frame beam, and the upper end of each pile is made in the form of a glass, and to the outer walls a pile in the form of a washer is welded to the piles above the lower end of the well, the outer diameter of which is smaller than the inner diameter of the well, and a horizontally located disk is welded to the inside wall of the well under the through holes, and a rubber disk is installed on the upper end of the pile, the diameter of which is equal to the inner diameter of the well moreover, on the pile ring lies a steel washer, the outer diameter of which is chosen equal to the inner diameter of the well, and the inner diameter is selected larger than the outer diameter of the pile, between the rubber disc and the steel washer in the gap between the inner wall of the well and the outer wall of the pile a rubber sleeve.

The essence of the invention is illustrated by figures. In FIG. 1 shows a pile foundation for equipment in longitudinal section; in FIG. 2 view A of FIG. 1. The pile foundation for the equipment includes piles 1 and a frame mounted on them from beams 2 and with wells 3 for anchor bolts 4. The wells 3 are closed by covers 5 and placed in the frame nodes coaxially to the piles 1. The inner diameter of the well 3 is selected larger than the outer diameter of the pile 1 At the same time, the upper end of the pile 1 is located inside the well 3 and does not reach its cover 5. The number of anchor bolts 4 for one well is chosen equal to two and their lower ends 6 are bent at an acute angle. At the upper end of the wells 3 there are two through holes 7 located along the diameter of the well. Each through hole 7 of the well includes a bent end 6 of the anchor bolt. Beams 2 frames are located between two anchor bolts 4 wells. In this case, both anchor bolts 4 of one well 3 pass upward through the openings 8 of the plate 9 mounted on top of the frame beam 2. On the threaded part 10 of the anchor bolts protruding from the plate 9, nuts 11 are screwed, tightening the well 3 to the frame beam 2. The upper end of each pile 1 is made in the form of a glass, and a ring 14 in the form of a washer is welded to the outer wall 12 of the pile above the lower end 13 of the well 3 and the ring 14 is welded on the inner wall. The outer diameter of the washer is smaller than the inner diameter of the well 3 so that the dynamic loads from the well 3 are not transmitted to the pile 1. A horizontally located disk 15 is welded to the inner wall of the well 3 under the through holes 7. A rubber disk 16 is installed on the upper end of the pile, the diameter of which is equal to the inner diameter of the well . On the ring 14 of the pile lies a steel washer 17, the outer diameter of which is chosen equal to the inner diameter of the well 3, and the inner diameter is chosen larger than the outer diameter 12 of the pile 1, so that the dynamic loads from the well 3 are not transmitted to the pile 1. Between the rubber disk 16 and the steel washer 17 in the gap between the inner wall of the well 3 and the outer wall 12 of the pile 1 is a rubber sleeve 18.

In the proposed pile foundation, the dynamic loads transmitted from the equipment to the piles are reduced, since the rubber disk and the sleeve absorb the dynamic loads from the equipment installed on the frame - the pump unit. As a result of this, the pile settlement is significantly reduced and thereby the life of the proposed foundation is increased.

Information sources

1. Patent RU 150462, IPC E02D 27/44, publ. 02/20/2015 Bull. No. 5.

2. The author. witness USSR 881207, M.C. E02D 27/44, published. 11/15/81 Bull. Number 42.

Claims (1)

A pile foundation for equipment, including piles and a frame made of beams and with wells for anchor bolts, the wells being closed by covers and placed in frame nodes coaxially to the piles, characterized in that the inner diameter of the well is selected larger than the outer diameter of the pile, with the upper end the pile is located inside the well and does not reach its cover, the number of anchor bolts for one well being chosen equal to two and their lower ends bent at an acute angle, and two through holes are made at the upper end of the wells located along the diameter of the well, and at each through hole of the well the bent end of the anchor bolt enters, and the frame beams are located between two anchor bolts of the wells, while both anchor bolts of one well pass up through the holes of the plate mounted on top of the frame beam, while the threaded part of the anchor bolts protruding from the plate, nuts are tightened, tightening the well to the frame beam, the upper end of each pile being made in the form of a glass, and welded to the outer wall of the pile above the lower end of the well but the inner wall is a ring in the form of a washer, the outer diameter of which is smaller than the inner diameter of the well, and a horizontally located disc is welded to the inner wall of the well under the through holes, and a rubber disc is installed on the top end of the pile, the diameter of which is equal to the inner diameter of the well, and on the pile ring lies a steel washer, the outer diameter of which is chosen equal to the inner diameter of the well, and the inner diameter is chosen larger than the outer diameter of the pile, between the rubber disk and the steel washer the gap between the inner wall of the well and the outer wall of the pile a rubber sleeve.

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