SU1219740A1 - Anchor - Google Patents

Description

one

The invention relates to cable-scraper installations for excavating exploration ditches, in particular, to the construction of supports for fastening end and deflecting blocks.

The purpose of the invention is to increase the carrying capacity in dense soils.

1 shows measles, a general view; 2 is a section A-A in FIG. FIG. 3 shows a section of the device.

The anchor consists of supporting elements, formed by sections placed one above the other, including the upper 1 and lower 2 single-arm levers, one ends of which are pivotally interconnected by means of fingers 3, while others are interconnected by connecting rings 4. The sections are interconnected a connecting ring on which the lower ends of the lower arms of the upper section and the upper ends of the upper arms of the lower section are fixed,

The upper arms 1 are made with limiters 5 that prevent the sections from folding inwards. The section is placed in the casing 6, having grooves 7, guides 8 and supporting plate 9. The end of the core cable 10, which is a pusher, is passed through the connecting rings 4 and fixed to the lower section, while the additional cable 11 (dismantling) is fixed with the free end on the top section. The casing 6 is fixed with a cover 12 with ot219740J

version 13 and 14 for the passage of the ropes 10 and 11.

The device works as follows.

5 The casing 6 is lowered into the drilled well. An armature assembled and fixed on the rope 10 is lowered with the help of an additional cable 11 into the casing 6 so that the upper 1 and lower 2 forming the section levers enter guide 8 and opposite grooves 7. At a predetermined installation depth, the core of the cable 10 is tensioned, and the other disassembly 11 is weakened. Under the action of its own weight, the hinge sections expand with the upper 1 and lower levers 2 through the slots 7 into the walls of the well. At this point, the rope 10 is connected

20 with an end block (not shown) of a scraper installation.

In the course of the installation operation, the rope 10 pulls up and tightens the hinge section, creating an expansion force on the supporting elements. This is expressed in the fact that in the hinge fingers 3 due to the presence of an angle o (between the upper 1 and lower 2 levers, a resultant force Q arises, which is directed toward the borehole walls, which contributes to a more reliable anchorage of the core in the soil.

The bark is dismantled by pulling the additional rope 11, while the measles are folded.

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Editor N. Dankulich

Compiled by G.Novikova Tehred I.Veres

Order 1301/41 Circulation 641Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch ShSh Patent, Uzhgorod, st. Project, 4

Proofreader A.Zimokosov

Claims (1)

ANCHOR, having a pusher, bearing elements with interconnected articulated levers and a base plate, characterized in that, in order to increase the bearing capacity in dense soils, bearing Fig.) The elements are made in the form of sections placed one above the other, in each of which the upper ends of the articulated levers are interconnected by means of a connecting ring, and the lower ones are articulated with the lower levers, the free ends of the lower levers of the upper section being articulated with the upper ends of the hinged levers of the lower section, and the free ends of the lower levers of the lower section are interconnected by means of a connecting ring, while the pusher is made in the form of a rope mounted on the lower section, and the sleep anchor It is equipped with an additional rope fixed on the upper section, and the upper levers of each section are made with limiters. s <o