The invention discloses an argillaceous sandstone geological
pipe jacking construction process. The process comprises the following steps of adopting a thixotropic
slurry system to inject thixotropicslurry circumferentially into a concrete
pipe, specifically, the concrete
pipe comprises a plurality of pipe joints,
slurry sleeves are arranged on the pipe joints at the head,
slurry sleeves are arranged on the pipe joints in the middle at intervals, grouting holes are distributed in the slurry sleeves in the circumferential direction, and the thixotropic slurry
system comprises a grouting pump and a grouting pipeline; mixing grouting materials with water and then stirring to obtain the required slurry during mixing the slurry, and using the slurry after standing for 24 hours; and grouting with the grouting pump, using a pressure gauge and a flow gauge to control the grouting pressure to be 1.1-1.2 times the
water depth in the grouting process, and simultaneously controlling the groutingquantity, wherein the grouting pipeline comprises a main pipe and a plurality of
branch pipes connected with the main pipe, and the
branch pipes convey the slurry fed by the pressure in the main pipeto each grouting hole. Besides the slurry sleeves at the head of a tool for pressure feeding of slurry, the slurry sleeves are additionally arranged on the middle pipe joints, so that a slurry supporting ring belt around the pipe is formed through the slurry sleeves.