SU717361A1

SU717361A1 - Method of erecting ferroconcrete anchorage support

Info

Publication number: SU717361A1
Application number: SU782653133A
Authority: SU
Inventors: Феликс Петрович Спиваков; Игорь Леонидович Ладыженский; Александр Сергеевич Курдюмов
Priority date: 1978-07-31
Filing date: 1978-07-31
Publication date: 1980-02-25

Description

1one

Изобретение относитс к горной йрбмышленности , в частности к креплению горных выработок.The invention relates to mining irbism, in particular to the fastening of mine workings.

Известен способ установки железобетонной анкерной крепи, заключающийс в бурении шпура, установлении в него, одного или нескольких металлических арм руюших элементов различной конструкции например штанги из стали периодического профил , с последующим заполнением шпура бетоном (l) .There is a known method of installing reinforced concrete anchors, which consists in drilling a hole, installing one or several metal reinforcing elements of various designs, for example, steel rods of a periodic profile, followed by filling the hole with concrete (l).

Однако применение известного способа св зано со значительными материальными и трудовыми затратами.However, the application of this method is associated with considerable material and labor costs.

Известен также способ установки за-, ранее приготовленных жепезобе нных штанг, включающий бурение шпура и зек нолнение его раствором и армируюшим материалов {2 .There is also known a method of installation of previously prepared geared rods, including drilling of a hole and a snake, filling it with a solution and reinforcing materials {2.

Недостатками этого способа вл ютс применение дорогосто щей специальной металлической арматуры, многооперационный технологический процесс установки крепи.The disadvantages of this method are the use of expensive special metal fittings, the multioperational process of installation installation.

Целью изобретени вл етс снижение расхода армирующего материала и yTtpoшение технологического процесса.The aim of the invention is to reduce the consumption of the reinforcing material and the yTTproschenie process.

Это достигаетс тем, что шпур бур т переменного сечени и заполн ют его ва всю длину дисперсно-армированным бетоном .This is achieved by the fact that the hole is drilled with a variable cross section and fill it with your entire length with dispersion-reinforced concrete.

Предложенный способ иллюстрируетс чертежом.The proposed method is illustrated in the drawing.

Claims

Fastening techniques conclude in drilling hole 1 and filling it full-length with dispersion-reinforced compound 2, which represents a single composition. Moreover, in order to increase the carrying capacity of the anchor, the drilled hole and, accordingly, the reinforced concrete anchor produced at the same time are discharged with a cross-section that is not long in length and in the form of a truncated cone in its lower part. In this case, the metal particles are distributed throughout the resulting reinforced concrete anchor, including areas of increased cross section. The economic effect from the introduction of the preferred method is 0.4 rub. on anchor, annual economic efficiency - 570OO - -j-ii -, Formula of the method In order to simplify the technological process and simplify the technological process, the bore hole of the variable cross section and fill it all over with dispersed arcs of benton. Sources of information taken into account in the examination of 1, V.Mostkov. M. Underground structures of large section. M .; Nedra, 1974, p. 56-S4.

2. USSR author's certificate 357349, cl. E 21B 21/00, 1970.