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Pipe jacking machine propulsion system

Pipe jacking machine propulsion system

Main jacking cylinder: The main jacking cylinder is the main equipment of the main jacking device. It is customarily called a jack in engineering. It is the driving force of the pipe section. The main jacking oil cylinder is installed in the pipe jacking operation well and is generally evenly arranged on both sides of the pipe wall. The cylinder is mainly composed of a cylinder block, a piston, a piston rod and a seal. Most of the use of telescopic hydraulic drive piston double-acting cylinder form.

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Features of cantilever tunnel boring machine

Features of cantilever tunnel boring machine

The cantilever TBM can only cut part of the tunnel section. To break the full-face rock, it is necessary to move the cutting head up and down, left and right, many times in order to complete the work. Can be used for tunnels of any cross-sectional shape.

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Working principle of double-wheel slotting machine

Working principle of double-wheel slotting machine

The milling head part of the two-wheel milling machine is equipped with a certain number of sensors for collecting data. The operator can intuitively see the working status of the two-wheel milling machine (the straightness of the milling head) through the touch screen. milling depth, milling head resistance) and operate accordingly.

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Rotary drilling rig construction process steps

Rotary drilling rig construction process steps

Step one: positioning rotary drilling rig. Step 2: Lay the drill bit gently on the ground, rotate it, and start drilling. It is best to use the weight of the drill bit as the drilling pressure to better ensure the accuracy of the pile foundation. Step 3: When the drill bit is full of earth and sand, it is pulled out of the hole. Pay attention to the underground water level in the tunnel and replenish water in time to prevent collapse.

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23-11

What is Horizontal Directional Drilling?

What is Horizontal Directional Drilling?

Horizontal directional drilling rig is a construction machinery for laying various underground public facilities (pipelines, cables, etc.) without excavating the surface. Widely used in water supply, electricity, communications, natural gas, gas, oil and other flexible pipelines. During laying construction, it is suitable for sandy soil, clay, etc., but not suitable for high groundwater level and pebble stratum. Most of the non hard rock areas in China can be constructed.

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