Deep pipe burying machine

Abstract

A deep pipe burying machine comprises a rear suspension bracket, a power distributor, a tunneling pipe laying mechanism, a hydraulic lifting frame, a pipeline conveying mechanism, a high-pressure water pump and a water tank. The power input shaft of the power distributor is connected with a power source, a driving chain wheel of the power distributor is connected with the tunneling pipe laying mechanism through a chain, and a horizontal output shaft is connected with a high-pressure water pump. The tunneling pipe laying mechanism is arranged in the hydraulic lifting frame through limiting guide wheels and a lifting guide rail, a lifting steel wire rope of the tunneling pipe laying mechanism is connected with a winch shaft of the hydraulic lifting frame, and a high-pressure water pipe connector is connected with a high-pressure water pump pipe. A hydraulic motor of the hydraulic lifting frame is driven by a carrier in a hydraulic output mode. The pipeline conveying mechanism controls a pipe coil to actively unwind through a photoelectric switch. The high-pressure water pump is connected with a high-pressure water pipe connector pipe of the water tank and a high-pressure water pipe connector pipe of the tunneling pipe laying mechanism. According to the deep pipe burying machine, the method of combining the sandy soil fluidization and machine tunneling stripping is adopted for achieving the large depth pipe laying of a sandy soil layer, the deep pipe burying machine is simple and reliable in structure, small in power consumption, high in mobility, flexible in construction field transferring and capable of achieving natural pipeline burying through the geological features.

Description

technical field [0001] The invention relates to pipeline laying equipment, in particular to a large-depth pipe-burying machine used for reinforcing dredging and filling sandy soil. Background technique [0002] In land reclamation projects, drainage is very important in the process of reclamation foundation reinforcement. In the prior art, the vertical drainage system is mainly realized by using drainage boards, and the horizontal drainage system is mainly sand cushion and blind ditch. Using the existing method to reinforce the dredger filling mainly on the sandy soil layer has a long construction period, high cost and low drainage efficiency. In order to achieve rapid and massive drainage of the dredged sandy soil layer, the permeable pipe can be buried deep in the sandy soil layer, and the permeable pipe is connected to a water pump, and the water seepage in the pipe can be pumped out by the pump to increase the drainage speed and speed up the drainage consolidation of the...

AI Technical Summary

Problems solved by technology

[0004] The trenching machine in the scheme of trenching first and then laying is a chain trencher, which cannot be applied to deep pipe buried in water-containing sandy soil. Its disadvantages are as follows:

[0005] 1. The principle of chain ditching technology cannot be applied in this working condition. The chain ditching machine cannot realize ditching at a depth of 4m to 6m, because the principle of the ditching machine is to break the soil and lift it out of the ditch. Excavated more soil

Large-depth buried pipes lift more soil, consume more power, have complex transmission, and lower reliability

[0006] 2. The sandy soil with high water content has low viscosity, and it is impossible to dig out the formed ditches. The dug out ditch will be quickly buried by the sandy soil layer, so the process of digging the ditch first and then laying the pipe cannot be realized.

[0008] 1. The chain-type structure mechanism is relatively complex, and the transverse dimension of the mechanism is long. It needs to be lifted when turning, which will cause the inability to lay continuously at the turning of the pipeline, which will easily cause inconsistency of the permeable pipeline and uneven settlement of the foundation.

[0009] 2. The tool chain of chain ditching is a closed chain. The chain tool moves upward in the direction of equipment advancement to be the tight side, and the other side is the loose side. After the sand returns, the loose side is buried in the sand, and the loose side will be stressed. If it is tight, it will cause detachment, and it will generate lifting force, which is not conducive to ensuring uniform depth of buried pipe

[0010] 3. In the existing technology, the excavation depth of chain trenching does not exceed 2m. For chain trenching with a depth of 4m to 6m, its structure is complicated and its reliability will be greatly reduced.

And the sandy soil layer will fall back quickly, the power consumption will increase greatly, the power requirement for the power machine will increase, the weight of the whole machine will increase, and the construction equipment may sink during the laying process

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