Tunnel formwork system for building construction

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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:

◆ No assembling, easy operation with formed formwork.

◆ High stiffness, make perfect shape for concrete.

◆ Repeatedly turnover is available.

◆ Widely applied range, such as building, bridge, tunnel, etc.

Tunnel formwork system for building construction

Q:What is the concrete construction of the tunnel invert: The construction of concrete is related to the non - construction concrete

Q:I would like to know the safety awareness of the tunnel lining formwork trolley Prawns to help answer oh: Two during the 1 excavation of earthwork calculating boundary line is important??? 2 measuring points as far as the standard

Q:What is the first project of tunnel constructionNow to do some of the tunnel program, you need to be the first to list out, a total of what? I know that the first branch, two lining, inverted arch, tunnel, pavement these: The first project of concrete lining of this section as I bid the tunnel project, on the next two plays a role model leading lining construction, so the various factors must be considered in detail, before the construction plan, reasonable arrangement, strict control of construction process, construction timely summary, finally reached the first the United States, the project entity information is true and complete, the project finished good target

Q:What are the reasons for the two lining concrete lining of the tunnel?: (3) the concrete pump tube, vibration rod and other mechanical repeated impact, workers trample or vibrator touch bar, caused by displacement and deformation of steel exposed.

Q:Main diseases and prevention of tunnel: Main diseases and prevention of tunnel1 over excavation in tunnel excavationPhenomenon: in tunnel excavation, the upper, lower, left and right contours are exceeded.The reason analysis: the measurement is not allowed, the deviation is big; the hole position deviation is bigger; the hole in the hole drilling process does not have the straight hole to have the slanting hole to exceed the limit; the blasting parameter choice is wrong, the charge quantity is too much or unreasonable.Preventive measures: to ensure the measurement work turnover review system; accurate calculation of blasting parameters, the formal process test before entering the tunnel, timely adjust the parameters change of geological condition; hole position and direction control in drilling process.

Q:Design of lining concrete is C30, what should be used in the construction of concrete arch cushion concrete?: Now the actual project is basically C15, if the economy is less than C15.

Q:Demolition of tunnel bearing formwork for several days: The removal time of concrete wall and beam column pouring template is determined according to the strength of concrete, different situations: different removal time of concrete strength of the bottom die and the bracket removal should meet the following requirements:

Q:Would you please tell me the difference between the concrete and shotcrete in the tunnel?: Characteristics of shotcrete:(1) the sprayed concrete has the characteristics of rapid growth, strong bonding force, high density and good impermeability. It can better fill the gap between the rock blocks, increase the integrity of the surrounding rock, prevent the free surface weathering and loosening, and work together with the surrounding rock.(2) the construction of shotcrete will transfer, pouring and tamping a few processes into one, and do not need a template, so the construction of fast, simple.(3) sprayed concrete can play an important role as early as possible.(4) compared with the concrete, the physical and mechanical properties of sprayed concrete are improved.

Q:Ask, general highway tunnel measurement with the total station to measure which aspects? The more detailed the better: Slag road slope line, shotcrete receiver measurement, measurement of highway tunnel excavation section, the most important measure is the monitoring and measurement precision of total station but couldn't finish that much. Ha-ha

Q:Two tunnel lining reinforced concrete template to price behavior can be contracted: This problem should belong to the industry confidential!If the two lining of the tunnel is pure manual, the normal price is between 800 and 650,

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