Tunnel Steel Formwork in Automatic Hydraulic

Tunnel Steel Formwork in Automatic Hydraulic

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TUNNEL FORMWORK

Brief Introduction

The automatic hydraulic tunnel formwork is the equipment to make
the concrete lining for the tunnel in one time.The empty gantry allows the
transport vehicles to pass. The motor gearbox is adopted to drive
the whole equipment, the formwork is fully hydraulic, with hydraulic
cylinder to prop & strip, and lock mechanically

Advantage

◆ Good concreting quality

◆ High-speed of installation and removal of the form

◆ Easy operation and safety

Tunnel Steel Formwork in Automatic Hydraulic

Q: I would like to ask the tunnel step method excavation, the height of each step is how to divide?: The side ditch construction using composite steel formwork. (1) the temporary facilities of tunnel construction plan layout: in the single ended due to tunnel entrance, temporary facilities of tunnel construction in tunnel exit to the right. The layout for the layout of wind mechanical equipment in the right side of the roadbed export based on the terrain conditions, reservoir located in the left side from the position of about 80m. In the mechanical approach immediately after the entrance of earth excavation construction, roof slope and drainage ditches slope anchor slope reinforcement, well hole digging for. (2): the excavation and reinforcement the mechanical construction, according to the construction method of Subgrade Earthwork excavation, dig to the rock when, in order to minimize the disturbance of the entrance slope and subgrade slope, must adopt the method of weak blasting and presplitting blasting for excavation. The entrance slope using hang net shotcrete reinforcement, to facilitate the safety hole (3). The excavation and support of the shallow section of the surrounding rock of the cave: the construction method adopts the step method, and the advanced grouting bolt is adopted on the stage

Q: Loess tunnel construction quality control points: 3) arch filled with rubble concrete should meet the requirements of the relevant regulations.4) concrete or rubble concrete arch above the back should reach the design strength of concrete arch in the back 70% after construction.

Q: What are the driving jobs in the tunnel: Control wire measurement in the cave 5) elevation control survey 6) through survey (7)

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,

Q: Design of lining concrete is C30, what should be used in the construction of concrete arch cushion concrete?: The thickness of the cushion should not be less than 70mm, and the concrete strength grade should not be less than C10;

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: Closed arch fill concrete pouring pouring arch fill fill arch wall waterproof plate arch wall steel reinforced concrete side wall chisel template trolley in the end of the work of the arch wall two lining 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 are the steps? If you build a template, how to fill in the concrete. The tunnel is to dig all the generalist pouring, or digging into the side. Simply say. Better picture. In addition, we have seen a video, the shield machine to dig up the tunnel after the installation of a number of prefabricated panels, but these prefabricated plate is curved. Do not have to fill in a semicircle tunnel?: Tunnel concrete is completed by the way of edge excavation and lining. After the excavation, the shotcrete is used as the initial support, and then the reinforcing steel mesh is set up. Only after the two lining.

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: Summary of construction of the first two tunnel lining