SU1234665A1 - Sectionalized support-shuttering - Google Patents

Description

The invention relates to the textile industry and can be used for erecting in the developed space an artificial pillar from a hardening mixture during the processing of steep seams with shield panels.

The purpose of the invention is to ensure equal strength of the pillar along its length and increase the safety of work.

FIG. 1 shows the sectional lining-formwork at the time of filling the intra-deck space; FIG. 2 - the same, when moving fencing shields - in FIG. 3 is a section A-A in FIG. 1.

The sectional formwork includes a front fencing shield t with a window for the pipeline 2 supplying a hardening mixture and a rear fencing shield consisting of two sections — an outer 3 and an inner 4, connected by a hydraulic cylinder 5.

The front fencing shield 1 and the inner section 4 of the rear shield are rigidly connected to a metal frame 6 which, in order to guide the formwork to the support sections, is connected to the last flexible connections 8. The fencing panels are equipped with double-acting hydraulic posts 9 On a metal frame 6 reinforced hydraulic cylinders 10 whose rods are connected to the bottom overlap 11. The hydraulic cylinders 10 are designed to move the bottom; overlap 11 along fencing shields, g. The bottom overlap 11 is extended in a plane normal to the bedding, is located at an acute angle to the longitudinal axis of the artificial rear sight and is equipped with double action hydraulic posts 12, the sliding rods of which are connected to the upper protective casing 13 of the bottom. overlap, and the hull hydraulic posts are connected to the lower protective casing 14.

A sectional formwork before starting the construction of the artificial pillar 15 is installed behind the support 16 of the ventilation gesen from the developed space.

Sectional formwork when erecting an artificial pillar works as follows.

When moving the shield unit

following the fall, the outer section 3 of the rear fencing shield is moved, which, together with the inner section 4, performs the functions of a cutting support along the entire length of the mating from the support 7 of the shield unit to the end of the previously erected section of the rear sight 15;

At the same time, the inner section 4 and the front shield 1, as well as the bottom cover 11, which are rigidly connected by the metal frame 6, remain stationary for the period of filling the inner formwork space with a hardening mixture and setting it up with dismounting

strength.

The hardening mixture is placed in the inter-compartment space through pipeline 2 through a window in the front fencing shield 1. After

a set of hardening mixture of dismountable strength, the boundary walls are separated from the side surfaces of the rear pillar by retraction of the rods of the hydraulic posts 9, then

longitudinal movement relative to the outer section 3, rigidly interconnected by a metal frame 6 of the inner section 4 and the front fencing shield 1 with

hydraulic cylinders 5 and tO, while the bottom overlap remains fixed.

After the termination of the movement of the enclosing shields, the hydraulically hardened 9s are supported between the roof and the soil of the formation. The bottom overlap is detached from the end surface of the rear sight by drawing in the rods of the hydraulic posts 12, while the upper protective casing 13 rigidly connected to the hydraulic supports slides

along the lower protective casing 14, tearing together from the end surface, and the bottom overlap by the hydraulic cylinders 10 moves to a predetermined position. Then, the hydraulic racks 12 are expanded and the cycle is repeated in the same sequence until the coal column is completely worked out.

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FIG. 3

Compiled by B. Levchayev

Editor M. Tovtin

Tehred M. Khodanych

Order 2966/43 Circulation V36. Subscription

VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, st. Project, 4

Proofreader M, Demchik

Claims (1)

SECTIONAL FORMWORK FORMWORK for erecting in the worked-out space an artificial pillar from hardening mixtures when working off steep seams with shield aggregates, including bottom overlapping and enclosing shields, with the aim of ensuring that the pillar is equally stable according to its length and increase the safety of work, the bottom overlap is installed at an acute angle to the longitudinal axis of the pillar with the possibility of longitudinal movement relative to the enclosing shields and is equipped with water-resistant struts, rigidly connected with metal frame, through which the enclosing shields are rigidly interconnected. SU.,., 1234665 A1 ζςξξζ: