SU881352A1

SU881352A1 - Method of erecting artificial support

Info

Publication number: SU881352A1
Application number: SU792853759A
Authority: SU
Inventors: Валентин Евстафьевич Бахарев; Леонид Алексеевич Фалалеев; Виталий Енгирович Хван; Сергей Яковлевич Литвиненко
Original assignee: Институт Горного Дела Ан Казахской Сср
Priority date: 1979-11-05
Filing date: 1979-11-05
Publication date: 1981-11-15

Description

Изобретение относится к горной промышленности и может быть использовано при подземной разработке месторождений полезных ископаемых с возведением искусственных опор в выработанном пространстве.The invention relates to the mining industry and can be used in underground mining of mineral deposits with the construction of artificial supports in the worked out space.

Известен способ возведения искусственной опоры в выработанном пространстве, ·заключающийся в возведении по углам квадрата бетонных опор и заполнении пространства между опорами пустой породой £1].A known method of erecting an artificial support in the worked out space, · consisting in the construction of the corners of the square of concrete supports and filling the space between the supports with empty rock £ 1].

Недостаток указанного способа - вывысокая трудоемкость возведения опоры. ¹⁵ The disadvantage of this method is the high complexity of the construction of the support. ^fifteen

Кроме того, известен способ возведения искусственной опоры в открытом очистном пространстве, заключающийся в монтаже опалубки и поочередном поднятии ее до кровли выработки по мере заполнения твердеющей смесью внутреннего пространства опалубки и затвердевания твердеющей смеси, при этом производится возведение оплошного монолитного целика из твердеющей смеси [21Недостатком указанного способа является большой расход дефицитной твердеющей смеси при значительных диаметрах опор. 30In addition, there is a known method of erecting an artificial support in an open treatment space, which consists in installing the formwork and alternately lifting it to the working roof as the hardening mixture fills the inner space of the formwork and hardens the hardening mixture, while the continuous monolithic pillar is erected from the hardening mixture [21 the method is a large consumption of scarce hardening mixture with significant diameters of the supports. thirty

Цель изобретения - снижение расхода твердеющей смеси.The purpose of the invention is to reduce the consumption of hardening mixture.

Поставленная цель достигается тем, что внутри основной опалубки на заданном расстоянии от ее стенок монтируют дополнительную опалубку, пространство между основной и дополнительной опалубками заполняют твердеющей смесью, а внутреннюю полость допол нительной· опалубки - горной породой, причем первоочередно производят заполнение пространства внутри дополнительной опалубки, затем после заполнения твердеющей смесью пространства между основной и дополнительной опалубками до уровня горной породы, размещенной внутри дополнительной опалубки, последнюю поднимают и производят виброуплотнение твердеющей смеси, при этом с целью увеличения прочности опоры между основной и дополнительной опалубками устанавливают арматуру .The goal is achieved by the fact that inside the main formwork at a specified distance from its walls, additional formwork is mounted, the space between the main and additional formwork is filled with a hardening mixture, and the internal cavity of the additional formwork is filled with rock, and the space inside the additional formwork is primarily filled, then after filling with the hardening mixture the space between the main and additional formwork to the level of rock placed inside the additional opal barrels, the latter is lifted and vibrocompaction of the hardening mixture is made, while in order to increase the strength of the support, reinforcement is installed between the main and additional formwork.

На чертеже изображена возводимая искусственная опора, вертикальный разрез .The drawing shows a constructed artificial support, a vertical section.

Воздействие искусственной опоры осуществляется следующим образом.The impact of artificial support is as follows.

Искусственную опору 1 возводят с помощью двух опалубок. Внутри основ3 ной 2 (наружной) опалубки на заданном расстоянии от ее стенок монтируют дополнительную 3 (внутреннюю) опалубку. Опалубки монтируют на подготовленной почве выработки. Внутреннюю опалубку снабжают гидродомкратами 4 и гидродомкратными стержнями 5, а на- ⁵ружную опалубку 3 - гидродомкратами 6, распорными кольцами 7 i В первую очередь за внутреннюю опалубку 3 до определенного уровня укладывают горную породу 8, затем пространство между внутренней опалубкой 3 и наружной заполняют до уровня горной породы твердеющей смесью 9, после чего производят? подъем внутренней опалубки с одновременным виброуплотнением 15 твердеющей смеси 9. Подъем наружной опалубки осуществляют по мере схватывания твердеющей смеси 9. После возведения опоры 1 под кровлю выработки демонтируют внутреннюю опалубку 3 jq и довозведение осуществляют с наружной опалубки 2.Artificial support 1 is erected using two formwork. Inside the main 2 (external) formwork, an additional 3 (internal) formwork is mounted at a predetermined distance from its walls. The formwork is mounted on the prepared working soil. An inner shuttering are provided with hydraulic jacks 4 and the rods 5 gidrodomkratnymi and HA ⁵ ruzhnuyu formwork 3 - hydraulic jacks 6, the spacer rings 7 i Primarily for the inner formwork 3 is placed to a certain level 8 the rock, then the space between the inner and the outer formwork 3 is filled to rock level with a hardening mixture of 9, and then produce? lifting of the inner formwork with simultaneous vibration compaction 15 of the hardening mixture 9. The lifting of the outer formwork is carried out as the hardening mixture is set 9. After the support 1 is erected under the roof, the inner formwork 3 jq is removed and the additional formwork is carried out from the outer formwork 2.

Данный способ возведения искусственных опор позволяет в сжатые сроки с помощью известных и легкоизготавливаемых устройств и с наименьшими на & данный период трудозатратами производить возведение искусственных опор под кровлю выработки в открытом очист ном пространстве.This method of erecting artificial supports allows in a short time using known and easily manufactured devices and with the least labor costs for this period to erect artificial supports under the roof of the mine in an open treatment space.

Claims

The invention relates to the mining industry and can be used in underground mining of mineral deposits with the erection of artificial supports in the developed space. There is a known method of erecting an artificial support in a high-fatigue space, which consists in erecting concrete supports at the corners of the square and filling the space between the supports of the empty rock fll. The disadvantage of this method is the high complexity of the construction of the support. In addition, a method of erecting an artificial support in an open cleansing space is known, which consists in mounting the formwork and alternately lifting it to the roof of the mine as the curing mixture fills the interior of the formwork and hardens the hardening mixture; The disadvantage of this method is the high consumption of the deficient hardening mixture with a significant diameter of the supports. The purpose of the invention is to reduce the consumption of hardening mixture. The goal is achieved by the fact that inside the main formwork at a given (the distance from its walls, an additional formwork is mounted, the space between the main and additional formwork is filled with a hardening mixture, and the internal cavity of the additional formwork is filled with rock). formwork, then after filling with the hardening mixture the space between the main and additional formwork to the level of rock that is placed inside the additional the decks, the latter is raised and the vibrating consolidation of the hardening mixture is performed, with this in order to increase the strength of the support between the main and additional forms the reinforcement is installed. The drawing shows the artificial support being erected, the vertical extension of the artificial support is effected as follows. two formwork. Inside the main 2 (external formwork at an additional distance from its walls, an additional 3 (internal) formwork is mounted. Formwork mounted on the prepared soil generation. The inner formwork is supplied with hydraulic jacks 4 and hydraulic jacks 5, and on the deck timbering 3 with hydraulic jacks 6, spacer rings 7 i First of all, the inner shell 3 is laid up to a certain level of rock 8, then the space between the inner formwork 3 and the outer 2 fill to the level of rock by hardening mixture 9, after which it is produced: the rise of the inner formwork 3c simultaneously with Vibrocompaction of the hardened mixture 9, the rise of the outer formwork is carried out as the hardening mix is seized 9. After Reinforcing the support 1 under the roof of the mine removes the internal formwork 3 and removes it from the external formwork 2. This method of erecting artificial supports allows, in a short time, using well-known and easily manufactured devices to erect artificial supports under the roof of the building. in the open net space. Claim 1, A method of erecting an artificial support in an open cleaning space, consisting in mounting the formwork and alternately lifting it to the roof of the mine as it fills with the hardening mixture of the interior of the formwork and hardens it, in order to reduce the consumption of hardening mixture, inside the main formwork, at a given distance from its walls, additional formwork is mounted, the space between the main and additional formwork is filled with hardened mixtures, and the internal cavity Modes formwork rock, with priority manufac m filling extra space inside the formwork, and then after filling the space between the setting mixture of basic and additional formwork to the rock layer, placed more inside the formwork, the latter is lifted and vibration compaction is produced t settable mixture. 2, a method according to claim 1, characterized in that, in order to increase the support strength, reinforcement is installed between the main and additional formwork. Sources of information taken into account in the examination 1. Gorodetsky P, I, and others. Issues of application of concrete supports and cemented bookmarks in the development of ore deposits, Moscow, Gosgortekhizdat, 1960, p. 9-11,

2. USSR author's certificate No. 649866, class, E 21 F 15/00, 1977 (prototype),