building tunnel formwork and scaffolding system

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Building Tunnel Formwork：

A compositional steel formwork system mainly used in the building which has regular structure

without beams, the excellent formwork system can make the integral pouring for the wall & slab

easily achieved.

Characteristics:

◆ High stiffness, make perfect shape for concrete.

◆ Easy operation, save labor and force.

◆ Fast forming, repeatedly turnover.

building tunnel formwork and scaffolding system

Q:What is the role of the tunnel formwork trolley? What is the use of template trolley?: The car is often used in the construction of hydraulic tunnel, the tunnel is not allowed to have concrete construction longitudinal joints, in the hydraulic tunnel span is large

Q:For example, lining, invert, bias and so on words,, to answer the full thank you: You haven't even touched the tunnel. Simply to say that the lining is the use of concrete or reinforced concrete tunnel inside the template pouring. The author is to stabilize the stability of the rock itself, followed by the tunnel in order to facilitate the application of.

Q:When the tunnel fight, there is no provision to fight how many meters left, only by one of the construction: Fixed strip: the use of additional reinforcement fixation; special fixture fixed; the wire and the fixed template (Figure 2).

Q:The tunnel has the super big pipe shed and the lead small conduit, is carries on the blasting excavation first or carries on the advance support first, has the anchor rod in the tunnel, this between the construction craft order is any: The excavation of invert waterproof plate, blind pipe and steel bar at the bottom of the tunnel, and the pouring of invert arch

Q:12 meters of the tunnel car, under normal circumstances, one of the two months to be able to cast a few models?: Seven hours after the maintenance of formwork, pouring a every day is no problem, that is to say a month to about fifteen die casting.

Q:How to design the general layout of the tunnel construction organization design: A very simple plane diagram, indicating the location of the tunnel, into the construction of the sidewalk and the construction of sidewalks, mixing stations and storage yard, air compressor unit location

Q:Highway bridge template needs, probably with the thickness of both the construction requirements can be met, and more cost-effective?: According to the actual situation of your project

Q:How to put the positioning point is based on what is mainly based on my novice, do not: The trolley positioning, the first to the two lining trolley running mileage, and positioning, positioning process will have been completed two off the top two tight lining lining, free end positioning first center point positioning control of elevation and with a plumb line (top surface elevation is equal to the length of the plumb line + if the mileage of two the center point of elevation can be lining),

Q:Two tunnel lining reinforced concrete template to price behavior can be contracted: Specific price mainly depends on the length of the tunnel, which is the size of the project, and the geological conditions of tunnel is the tunnel construction is now the price of pure artificial price, the specific price or to the bidding price and the construction unit price guide, after all, the project is now basically is the lowest bid, the inevitable choice to compress all fees is the construction unit.If you need to complete the tunnel labor contract price and the cost of all, you can continue to ask questions, hope to adopt!

Q:Who can give me detailed tunnel construction process: On the inner side wall heading section is advanced, the footage was 0.7m immediately on the rock surface at the beginning of the spray, install the first layer of rock along Phi 8 steel mesh, and connected into a whole, set up active and temporary supporting steel arch, and the arch and a connected whole Phi 25 steel, drilling into the phi 25 hollow bolt and grouting, the installation of second layer steel mesh shotcrete layer to design contour line, pay attention to every compact trusses on the back of the footage, about 5~10m after the excavation under the heading section, and the lateral wall of drift can also present a ring section excavation footage was about 20 ~ 35m, support the arch excavation core soil upper arc heading, 3 ~ 5 after excavation footage and central support, under the section of tunnel bottom and the lower end of the previous about heading completely combined with closed loop, is divided into seven excavation, all operations must strictly follow the open Step by step, must be two inside the wall first, follow up the process step by step process. At the same time there must be monitoring data as the basis, redistribution of stress or conversion, will increase the support displacement, and strata subsidence and deformation, should strengthen the monitoring capacity before and after removal of the tunnel deformation and supporting force measurement,

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