Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Long spiral pressure filling pile construction method
The invention discloses a long spiral pressure filling pile construction method. The long spiral pressure filling pile construction method comprises the following steps that firstly, lofting positioning is conducted, according to the axis and the pile position arrangement situation, a measuring control net is constructed in the site, and then various pile position points are measured and placed according to the control net; secondly, the drilling machine position is conducted, a crawler belt crawling type drilling machine is adopted, drilling machine positioning is conducted, and a computer control system arranged in the drilling machine is used for conducting drilling machine mast and machine body horizontal and vertical adjusting positioning; thirdly, the drilling machine drills sand andstone for hole forming, a double-power-head long spiral drilling machine is adopted for drilling and soil sampling of a soil layer, and the pile depth position is reached; fourthly, filling pile lifting and drilling are conducted, pile lifting is conducted at low speed, meanwhile, flow-state concrete jetting is conducted, steel protection barrels are elevated, and part of the steel protection barrels are left; fifthly, reinforcement cage burying is conducted, and after a reinforcement cage is hoisted in place, the reinforcement cage is inserted; and sixthly, the drilling machine moves to thelower pile position point. The long spiral pressure filling pile construction method has the following advantages and effects that the second steel protection barrel is left in a drilled hole so thatthe bearing force of a pile foundation can be effectively improved, meanwhile, the construction method can adapt to more construction environments, and the construction cost is effectively reduced.
本发明公开了一种长螺旋压灌桩施工方法，包括以下步骤：S1,放样定位，根据轴线及桩位布置情况，在场地内建立测量控制网，然后依据控制网测放各桩位点；S2,钻孔机位，采用履带爬行式钻机，钻机定位，由钻机自身配置电脑控制系统进行钻机桅杆与机身水平和垂直调整定位；S3,钻机钻土石成孔，采用双动力头长螺旋钻机，对土层进行钻孔取土，达到桩深位置；S4,提钻灌桩，慢速提桩，同时喷注流态砼，提升钢护筒并遗留部分钢护筒；S5,钢筋笼埋设，对钢筋笼起吊就位后插入钢筋笼；S6,钻机移至下桩位点。本发明具有以下优点和效果：通过将第二钢护筒遗留在钻孔内，能够有效提高桩基的承载力，同时能够是该施工工法适应更多的施工环境，且有效降低施工成本。
Long spiral pressure filling pile construction method
The invention discloses a long spiral pressure filling pile construction method. The long spiral pressure filling pile construction method comprises the following steps that firstly, lofting positioning is conducted, according to the axis and the pile position arrangement situation, a measuring control net is constructed in the site, and then various pile position points are measured and placed according to the control net; secondly, the drilling machine position is conducted, a crawler belt crawling type drilling machine is adopted, drilling machine positioning is conducted, and a computer control system arranged in the drilling machine is used for conducting drilling machine mast and machine body horizontal and vertical adjusting positioning; thirdly, the drilling machine drills sand andstone for hole forming, a double-power-head long spiral drilling machine is adopted for drilling and soil sampling of a soil layer, and the pile depth position is reached; fourthly, filling pile lifting and drilling are conducted, pile lifting is conducted at low speed, meanwhile, flow-state concrete jetting is conducted, steel protection barrels are elevated, and part of the steel protection barrels are left; fifthly, reinforcement cage burying is conducted, and after a reinforcement cage is hoisted in place, the reinforcement cage is inserted; and sixthly, the drilling machine moves to thelower pile position point. The long spiral pressure filling pile construction method has the following advantages and effects that the second steel protection barrel is left in a drilled hole so thatthe bearing force of a pile foundation can be effectively improved, meanwhile, the construction method can adapt to more construction environments, and the construction cost is effectively reduced.
本发明公开了一种长螺旋压灌桩施工方法，包括以下步骤：S1,放样定位，根据轴线及桩位布置情况，在场地内建立测量控制网，然后依据控制网测放各桩位点；S2,钻孔机位，采用履带爬行式钻机，钻机定位，由钻机自身配置电脑控制系统进行钻机桅杆与机身水平和垂直调整定位；S3,钻机钻土石成孔，采用双动力头长螺旋钻机，对土层进行钻孔取土，达到桩深位置；S4,提钻灌桩，慢速提桩，同时喷注流态砼，提升钢护筒并遗留部分钢护筒；S5,钢筋笼埋设，对钢筋笼起吊就位后插入钢筋笼；S6,钻机移至下桩位点。本发明具有以下优点和效果：通过将第二钢护筒遗留在钻孔内，能够有效提高桩基的承载力，同时能够是该施工工法适应更多的施工环境，且有效降低施工成本。
Long spiral pressure filling pile construction method
一种长螺旋压灌桩施工方法
HE YAOGUANG (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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