SU802477A1

SU802477A1 - Tunnel lining

Info

Publication number: SU802477A1
Application number: SU792722174A
Authority: SU
Inventors: Исай Леонидович Воллер; Лев Дмитриевич Левин; Александр Николаевич Малинин; Михаил Натанович Розин; Эдуард Валерьянович Самсонов
Original assignee: Всесоюзный Институт По Проектированиюорганизации Энергетического Строитель-Ctba "Оргэнергострой"
Priority date: 1979-01-30
Filing date: 1979-01-30
Publication date: 1981-02-07

Description

(54) ТУННЕЛЬНАЯ ОПАЛУБКА(54) TUNNEL FORMWORK

1one

Изобретение относитс к области подземного строительства, а именно к сооружению туннелей в зонах нарушенных и склонных к вывалам скальных пород.The invention relates to the field of underground construction, namely to the construction of tunnels in the areas of disturbed rock and prone to dumps.

Известны туннельные опалубки, включающие несущую оболочку и механизм перемещени 1.Tunnel casing is known, including a carrier envelope and a transport mechanism 1.

Недостатком этой известной опалубки вл етс то, что укладку бетона можно выполн ть только после окончани уборки породы, вследствие чего выработка значительный период времени остаетс незакрепленной .The disadvantage of this known formwork is that the laying of concrete can only be carried out after the end of the harvesting, as a result of which the development of a considerable period of time remains unfixed.

Известны также туннельные опалубки, включающие вертикальные щиты, щит сводового перекрыти и механизм перемещени 2.Tunnel casing is also known, including vertical shields, a roof slab and a movement mechanism 2.

Однако така конструкци опалубки недостаточно производительна в работе, так как операции бетонировани и уборки пород осуществл ютс порознь.However, this formwork design is not sufficiently productive in operation, since the operations of concreting and harvesting rocks are carried out separately.

Целью изобретени вл етс повыщение производительности путем совмещени oneраций бетонировани и уборки породы.The aim of the invention is to increase productivity by combining concreting and harvesting operations.

Достигаетс это тем, что опалубка содержит вертикальные щиты, щит сводового перекрыти и механизм перемещени , верхние торцы вертикальных щитов снабжены роликами, а нижние торцы щита сводового перекрыти имеют направл ющие и уплотнительные элементы, причем щит сводового перекрыти установлен на вертикальных щитах с возможностью продольного перемещени .This is achieved by the fact that the formwork contains vertical shields, arched overlap shield and moving mechanism, the upper ends of vertical shields are provided with rollers, and the lower ends of the arched overlap shield have guide and sealing elements, with the arched overlap shield being installed on the vertical shields with the possibility of longitudinal movement.

На фиг. 1 изображена туннельна опалубка , продольный разрез; на фиг. 2 - то же, поперечное сечение; на фиг. 3 - узел I фиг. 2.FIG. 1 shows tunnel formwork, longitudinal section; in fig. 2 - the same cross section; in fig. 3 - node I of FIG. 2

Опалубка состоит из вертикальных щитов I, щита сводового перекрыти 2, механизма перемещени 3, роликов 4, установленных на верхних торцах вертикальных щитов, направл ющих 5, установленных на нижних торцах сводового перекрыти 2, а также уплотнительных элементов 6, св занных с направл ющими 5.The formwork consists of vertical shields I, a roof slab 2, a transfer mechanism 3, rollers 4 mounted on the upper ends of the vertical shields, guides 5 mounted on the bottom ends of the arch overlap 2, and also sealing elements 6 connected to the guides 5 .

Работает опалубка следующим образом.The formwork works as follows.

Claims

After blasting the next intake 7, the formwork is separated from the concrete by means of the transfer mechanism 3 and the arched overlap shield 2 is moved by rolling the guides 5 along the rollers 4 forward to the bottom of the face 7. Here it is placed in the working position (the installation mechanism is conventionally not shown) and the sealing elements 6 are actuated. They mount the water pipe and start laying the concrete through the windows of the bearing shell. At the same time, the blasted rock is harvested 8. After the rock is harvested, the vertical shields 1 are moved forward to the bottom of the bed and the lower part of the lining is concreted. At last, the sealing elements 6 are removed and the concrete is laid in the zone of the abutment of the roof slab and vertical shields. Then, the slaughter of the slab is made, its blasting and the cycle is repeated. Thus, the described formwork makes it possible to combine the construction of the arched part of the lining with the cleaning of the rock, to improve the quality of the lining, and hence the stability of production by reducing the time between the opening of the rock and its consolidation. This will increase the speed of tunneling due to the expansion of the technological capabilities of the formwork by 20-25% and reduce the cost of work by 10%. Claims of the invention Tunnel formwork, including vertical shields, roof slab shield and movement mechanism, characterized in that, in order to increase productivity by combining concreting and cleaning operations, the upper ends of the vertical shields are provided with rollers, and the bottom ends of the roof slab have guides and sealing elements, with the arched ceiling panel mounted on the vertical panels with the possibility of longitudinal movement. Sources of information taken into account during the examination 1. USSR author's certificate No. 293991, cl. E 04 G 11/22, 1969.

2. USSR author's certificate number 98373, cl. E 04 G 11/20, .1952.

Fig.Z