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Construction method of prefabricated inspection well
The invention relates to the field of inspection well construction, and discloses a construction method of a prefabricated inspection well, which comprises the following steps of: 1, preparing before construction; 2, positioning the rotary drilling rig; 3, ensuring that the cylinder wall is perpendicular to the horizontal plane, stabilizing the hole opening soil and protecting the hole wall from collapsing, and then burying a steel casing; fourthly, drilling construction is conducted through the rotary drilling rig; 5, checking the soil sample taken out by the drilling machine, and carrying out inspection well foundation construction after determining that the design requirement is met; sixthly, a well chamber of the inspection well is hoisted, and gaps on the outer side of the well chamber are backfilled with medium-coarse sand; seventhly, pipeline construction is conducted through a horizontal directional drill; 8, after directional drilling construction is completed, slurry in the well chamber is cleaned, and a gap between the pipeline and the inspection well is blocked; and 9, recovering the ground.
本发明涉及检查井施工领域,且公开了一种预制检查井的施工方法,包括以下步骤:第一步:进行施工前的准备;第二步:旋挖钻机定位;第三步:确保筒壁与水平面垂直,稳定孔口土壤和保护孔壁不塌,然后埋设钢护筒;第四步:旋挖钻机钻孔施工;第五步:查看钻机取出的土样,确定满足设计要求后进行检查井基础施工;第六步:检查井井室吊装,井室外侧缝隙回填中粗砂;第七步:用水平定向钻进行管道施工;第八步:定向钻施工完成后清理井室内泥浆,封堵管道与检查井空隙;第九步:恢复地面。
Construction method of prefabricated inspection well
The invention relates to the field of inspection well construction, and discloses a construction method of a prefabricated inspection well, which comprises the following steps of: 1, preparing before construction; 2, positioning the rotary drilling rig; 3, ensuring that the cylinder wall is perpendicular to the horizontal plane, stabilizing the hole opening soil and protecting the hole wall from collapsing, and then burying a steel casing; fourthly, drilling construction is conducted through the rotary drilling rig; 5, checking the soil sample taken out by the drilling machine, and carrying out inspection well foundation construction after determining that the design requirement is met; sixthly, a well chamber of the inspection well is hoisted, and gaps on the outer side of the well chamber are backfilled with medium-coarse sand; seventhly, pipeline construction is conducted through a horizontal directional drill; 8, after directional drilling construction is completed, slurry in the well chamber is cleaned, and a gap between the pipeline and the inspection well is blocked; and 9, recovering the ground.
本发明涉及检查井施工领域,且公开了一种预制检查井的施工方法,包括以下步骤:第一步:进行施工前的准备;第二步:旋挖钻机定位;第三步:确保筒壁与水平面垂直,稳定孔口土壤和保护孔壁不塌,然后埋设钢护筒;第四步:旋挖钻机钻孔施工;第五步:查看钻机取出的土样,确定满足设计要求后进行检查井基础施工;第六步:检查井井室吊装,井室外侧缝隙回填中粗砂;第七步:用水平定向钻进行管道施工;第八步:定向钻施工完成后清理井室内泥浆,封堵管道与检查井空隙;第九步:恢复地面。
Construction method of prefabricated inspection well
一种预制检查井的施工方法
WU JIANGLONG (author) / ZHANG ZHI (author) / KANG LINKE (author) / HE YEHAN (author) / DONG TETE (author) / ZHANG LU (author)
2022-11-04
Patent
Electronic Resource
Chinese
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