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• Time of issue:2020-09-23 15:07
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(Summary description)The construction principle of the pipe jacking machine is shown in the figure below. Put the pipe jacking machine engine or special tool pipes into the pipe well in succession. The engine rotation on the front side of the pipe jacking machine and the main jacking equipment on the back of the back seat are carried out separately. Drilling while pushing, crossing the underground soil layer, pushing down the receiving tube well all the time, completing a pipe jacking project. The full-automatic dynamic support point of the main shaft on the front side of the pipe jacking machine balances the excavation surface of the foundation pit to maintain the stability of the excavation surface. In addition, the sand and soil drilled by the rotating main shaft of the pipe jacking machine and the mud pipeline system software The transported diluent water is mixed into a relatively uniform mortar water, and then the sludge is discharged in a liquid method according to the mud pump and pipeline system software to be piped to the road surface. Basic principles of pipe jacking engineering construction 1. Backrest The rear seat back of the pipe jacking machine is used to transmit and disperse the recoil force of the main roof hydraulic cylinder, considering the prefabricated components between the main roof hydraulic cylinder and the back wall. 2. Accept the well The receiving well is excavated in the soil foundation pit to purchase temporary housing construction of pipe jacking construction tunneling machines or special tool pipes. 3. Consider the well Considering that the well is excavated in the soil foundation pit, it is used to install the pipe jacking engineering machinery and equipment, bear the power of the main roof hydraulic cylinder, and carry out the temporary housing construction for the actual operation of the pipe jacking project directly under the special tool pipe. 4. Slide rail It is installed above the slab in the well, with supporting point pipe jacking construction tunneling machine, the original guidance of pipe jacking construction, and the service platform of pipe culvert patchwork effect. 5. "n" shape or ring top iron The "n"-shaped or ring-shaped top iron is a steel prefabricated component added to fill the gap between the length of the pipe culvert and the stroke arrangement of the main top hydraulic cylinder, which can transmit the torque of the main top hydraulic cylinder to the end of the pipeline. ”Shape or ring shape is conducive to the vertical transportation of earth trucks, and is mostly used in the construction of sludge balanced pipe jacking.