Method for laying structures of forming underground tunnel and its structure

Abstract

The present invention relates to a method for laying structures of forming underground tunnel and its structure. It is different from before, the invention will not press the long distance small diameter pipeline that can not be constructed between the steel pipes, lays a wood made collapse proof plate by the collapse proof plate input port on the transmission pipe, so the construction is simple and the material cost is low, and because the lay of the transmission, the big stone and other obstacles can be removed quickly, thereby the lay is more simple and having good beeline degree.

Description

【Technical field】 [0001] The present invention relates to a method and structure for laying a structure for forming an underground tunnel, and is the technical content of Korean Patent Registration No. 217845 and No. 442712 to which I am the owner of the patent, that is, the soil and sand of the excavated part of the tunnel are not excavated, and The method of laying the tunnel-forming structure in the middle, allowing it to fully withstand the stress in advance, and then excavating the inner side of the structure to form an underground tunnel can be improved, and the construction of a strong and waterproof tunnel structure can be completed in a short period of time. 【Background technique】 [0002] Generally, in order to form a tunnel, it is necessary to lay a tunnel structure capable of withstanding the stress generated from the outside of the tunnel, and the conventional method of laying a tunnel structure will be described below. [0003] First, as figure 1 As shown in t...

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Problems solved by technology

[0004] First, because the tunnel excavation is carried out first, and then the erection process is carried out, the erection process needs to be carried out many times, which is very cumbersome and has certain safety hazards

[0005] Second, in order to carry out the erection process, a plurality of scaffolds 1 will be connected with a plurality of screws to be laid after tunnel excavation, which not only increases the difficulty of work, but also requires a lot of manpower, long construction period and uneconomical. construction progress is slow

[0006] Third, when excavating, if the excavation is too deep, when the foundation is weak, needless to say, the excavation process has a high risk of foundation or rock plate collapse or subsidence during the erection process after the excavation work. security incident

[0010] First, all the very long small-diameter pipelines 2 must be forcibly pressed into the steel pipes 10 for laying. When the length is relatively long, since there is no pipeline transmission pipe and adjustment device, it is difficult to control the directionality, and there are defects in the linear progress. , so it is difficult to lay

When the gaps between the steel pipes 10 are large, the small-diameter pipes 2 cannot prevent landslides, and a lot of equipment and construction costs will be consumed

When there are stones or the soil layer moves up, the direction changes, which makes the linear progress uncertain. When there are huge stones, the construction will be very difficult. When the filling work is carried out inside the steel pipe at the same time, the steel pipe will be corroded and become deformed. Fragile, difficult to prevent groundwater and soil loss, very uneconomical when filling the interior of pipes

[0011] Second, when the curved surface parts of the side of the above-mentioned steel pipe 10 opposite to a certain distance are cut to form mutually open cut parts, there is a danger of collapse due to the pressure of the upper soil layer.

After the upper and lower ends of the incision are welded with iron plates 3, it is necessary to lay struts 4. At this time, the pressure of the soil layer will be transmitted to the lower iron plates, so it is necessary to lay protective steel plates separately, which makes the work complicated and requires other Iron plate equipment consumes too much equipment cost and is uneconomical

Moreover, the ability to withstand external stress is weak. If there are no necessary measures in advance, it will be structurally unsafe.

[0012] The 3rd, fill above-mentioned steel pipe interior 10 bottoms with polystyrene foam plastics 5 as the work of casting mould, need expend a lot of equipment cost, when construction material is in short supply, be difficult to buy polystyrene foam plastics 5, need to process or special for steel pipe 10 Customized Styrofoam 5, if the size of steel pipe 10 changes, you need to re-purchase Styrofoam 5 that meets the size, which is very inconvenient

In addition, after the completion of the project, the waste of polystyrene foam 5 will pollute the environment, and it is also very difficult to deal with it.

[0013] Fourth, since the inside of the steel pipe is filled with concrete without reinforcement, the ability to withstand external stress is weak, it is difficult to explain the structure, and it is necessary to add a protective steel plate, which requires a lot of extra costs, which is not only uneconomical, but also reduces the safety index

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