River penetrating process
A process and river crossing technology, applied in the direction of pipeline laying and maintenance, pipes/pipe joints/fittings, machinery and equipment, etc., can solve problems such as difficulty in rectification, improve construction efficiency, improve stability, and reduce the probability of position changes Effect
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[0048] Embodiment 1: a kind of river crossing process, comprises the following steps:
[0049] S1, preparations before construction:
[0050] Investigate the geological and hydrological conditions of the project; investigate the underground obstacles along the construction line, and take safety protection measures for the buildings and structures above the construction section; check the construction materials and construction equipment; calculate the jacking force and stake out; set up the test section and make records , to reduce the generation of problems in the construction process.
[0051] S2, Excavating the working well:
[0052] Such as figure 1 As shown, the launching pit 1 and the receiving pit 2 are respectively excavated at the head and tail of the construction section. During the excavation process, cement mortar is injected into the soil near the respective side walls of the launching pit 1 and the receiving pit 2 to form a high Strong water-stop wall 3, and t...
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