Deep sludge continuous fishpond pipe laying construction method

Abstract

The invention relates to a deep sludge continuous fishpond pipe laying construction method. The method comprises the following steps that construction preparation, measuring unreeling, pipe ditch digging, prefabrication platform construction, pipe transmitting ditch digging and rolling wheel support mounting are carried out, three steel pipes are prefabricated into one section then six steel pipes are connected into one after the assay is approved, a blind plate, a water inlet valve and an exhaust valve are welded to a water entry end, three excavators carry out hoisting at the same time, a first section prefabricated steel pipe is hoisted on a rolling wheel support, then the excavators move forwards simultaneously until the front portion of the pipe enters water and is floated, a second section prefabricated pipe is welded to the tail portion of the first prefabricated pipe, the three excavators return to the initial positions and hoist the second prefabricated pipe to push the second prefabricated pipe again and so repeatedly, two side pulling ropes at the front-most end of a pipe are pulled to enable the pipe to turn naturally by means of own elasticity, a blind plate, a water inlet valve and an exhaust valve are welded to the tail end of a last section pipe, water injection and pipe sinking are carried out after pipe ditches are checked and cleaned again, and then pressing pieces are backfilled. The deep sludge continuous fishpond pipe laying construction method is low in cost, short in time for construction and high in quality.

Description

technical field [0001] The invention relates to a construction method of a long-distance pipeline, in particular to a construction method for the installation and construction of a deep silt continuous fish pond pipeline. Background technique [0002] On the forward path of long-distance oil and gas pipelines, fish ponds, rivers, etc. will inevitably be encountered, and crossing construction is required. -2006" and "Code for Construction and Acceptance of Oil and Gas Pipeline Crossing Engineering SY / T4079-95" and other requirements, there are roughly three types of existing pipeline construction methods in fish ponds and river areas: [0003] 1. Fish pond. Generally, water is pumped first, then soil is placed, and then pipe layout, assembly, welding, anti-corrosion, excavation, trenching, backfilling, etc. are carried out. The specific construction process is: measuring and setting out → pumping → hardening treatment such as cushioning soil or steel plate laying → transpor...

AI Technical Summary

Problems solved by technology

[0004] 2. Short-distance rivers

First of all, there is no hard ground required for the installation of traction equipment for continuous fish ponds. Secondly, the pipeline can only travel along a straight line between the traction point and the sending point. The pipeline cannot be bent during the traction process, and the long-distance pipeline is longer. From the perspective of distance, it is zigzag forward. The traction drift pipe can only complete the laying of each straight section. It is almost impossible to implement in contiguous deep silt fish ponds

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