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pipe jacking machine, Nominal diameter: 600-1350mm;, Power: 11-35KW. - details see: https://www.machineto.com/pipe-jacking-machine-10113889

DZ series soil pressure balance type rectangular pipe jacking machine

DZ type soil pressure balance type rectangular pipe jacking machine is using earth pressure balance principle to complete the rectangular tunnel construction, it can be used to construct the cross-street tunnel, highway cross, metro station, subway, submarine tunnel and the municipal water supply and drainage, electricity, telecommunications, petroleum, and natural gas pipeline laying in downtown, antiquities protection area, vegetation protection zone and other non excavation places

The equipment consists of rectangular pipe jacking machine and the main jacking device. Its main parts are well-known domestic and foreign products, the programmable controller adopts Japan's Mitsubishi Electric products, and reducer adopts Italy products, guarantee quality equipment. The machine is mainly composed of three parts: mechanical part, electric control part, and automatic control data display part.

Rectangular tunnel pipe jacking machine adopts pumping delivery the mucks

Characteristic

It is using earth pressure balance principle to process full section cutting, it has small disturbance on the surrounding soil. In the same cutting area, the rectangular tunnel can efficiently use the space more than circular tunnel; reduce the underground excavation earthwork. Not need ground paving process, saving the processing time and the engineering cost can be reduced by about 20%. It has not effect to the original underground pipeline, road traffic, water transport and various ground construction. The construction has no noise, no environmental pollution. Through the PLC program controller and all kinds of sensors monitor the construction, so the whole construction process in a controlled state, so as to effectively control the rectangular tunnel jacking axis, angle deviation, and the ground subsidence.

1. construction work well is smaller than shield work well, reduce the area

2. It has the follow advantages: Not excavate the road surface, not close the traffic, not move pipeline, low noise, no dust, etc..

3. At the time of construction it has not disturbance to the surrounding soil, and it can effectively control ground and pipeline settlement. And it can pass through in vertical 1 meter distance from the municipal pipeline and channel top, and does not damage the pipeline.

4. in the same section, rectangular tunnel is able to more effectively use the underground space better than the circular tunnel

Working principle

It process full section cutting on positive soil through large cutter plate and profile modeling cutter, and control the discharge soil amount through changing the spiral machine rotation speed and the jacking speed, the earth pressure value in the soil pressure chamber is stable and controlled in the set pressure value range, thereby keep the earth excavating and cutting surface stability.

Scope of application

This method is suitable for the clay, silty clay, silty sand, sandy silt and strong weathered rock stratum construction

main parameters:

Central control room

CONTROL DESK

main construction flow