A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cast-in-situ bored pile construction method for complex stratum shallow foundation oversized straight pier
The invention relates to a cast-in-situ bored pile construction method for a shallow foundation super-large straight pier in a complex stratum. Comprising the following steps: 1, ascertaining geology and determining a construction process flow; step 2, stratum lithology analysis; step 3, measuring and positioning; step 4, burying a pile casing; 5, a drilling machine is in place; 6, drilling is conducted; 7, rock entering is judged; 8, final holes and formed holes are checked and accepted, and the holes are cleaned to dredge slag; step 9, secondary acceptance check; step 10, manufacturing a reinforcement cage; step 11, lowering a reinforcement cage; 12, underwater concrete is poured; 13, the pile casing is lifted and pulled; 14, hole site backfilling is conducted; and 15, the steps 3-14 are repeated to complete construction of all the diameter-expanded pier foundations. According to the method, the quality of the cast-in-situ bored pile is optimized at a time under the complex geological condition through process control of the working procedures of pile casing installation, rotary excavating, slurry retaining wall hole forming, reinforcement cage manufacturing and hoisting, concrete pouring and the like and application of the pile foundation sediment control technology, and the pile foundation quality reaches the standard.
本发明是一种复杂地层浅基超大直墩的钻孔灌注桩施工方法；包括步骤1、探明地质并明确施工工艺流程；步骤2、地层岩性分析；步骤3、测量定位；步骤4、埋设护筒；步骤5：钻机就位；步骤6：钻孔；步骤7、判定入岩；步骤8、终孔、成孔验收、清孔捞渣；步骤9、二次验收；步骤10、钢筋笼制作；步骤11、下钢筋笼；步骤12：浇筑水下混凝土；步骤13、提拔护筒；步骤14：孔位回填；步骤15：重复步骤3~步骤14完成所有扩大直径墩基础施工。本发明通过护筒安装、旋挖和泥浆护壁成孔、钢筋笼制作和吊装、混凝土浇筑等工序的过程控制，以及桩基沉渣控制技术应用，实现复杂地质条件下钻孔灌注桩质量一次成优，桩基质量达到标准。
Cast-in-situ bored pile construction method for complex stratum shallow foundation oversized straight pier
The invention relates to a cast-in-situ bored pile construction method for a shallow foundation super-large straight pier in a complex stratum. Comprising the following steps: 1, ascertaining geology and determining a construction process flow; step 2, stratum lithology analysis; step 3, measuring and positioning; step 4, burying a pile casing; 5, a drilling machine is in place; 6, drilling is conducted; 7, rock entering is judged; 8, final holes and formed holes are checked and accepted, and the holes are cleaned to dredge slag; step 9, secondary acceptance check; step 10, manufacturing a reinforcement cage; step 11, lowering a reinforcement cage; 12, underwater concrete is poured; 13, the pile casing is lifted and pulled; 14, hole site backfilling is conducted; and 15, the steps 3-14 are repeated to complete construction of all the diameter-expanded pier foundations. According to the method, the quality of the cast-in-situ bored pile is optimized at a time under the complex geological condition through process control of the working procedures of pile casing installation, rotary excavating, slurry retaining wall hole forming, reinforcement cage manufacturing and hoisting, concrete pouring and the like and application of the pile foundation sediment control technology, and the pile foundation quality reaches the standard.
本发明是一种复杂地层浅基超大直墩的钻孔灌注桩施工方法；包括步骤1、探明地质并明确施工工艺流程；步骤2、地层岩性分析；步骤3、测量定位；步骤4、埋设护筒；步骤5：钻机就位；步骤6：钻孔；步骤7、判定入岩；步骤8、终孔、成孔验收、清孔捞渣；步骤9、二次验收；步骤10、钢筋笼制作；步骤11、下钢筋笼；步骤12：浇筑水下混凝土；步骤13、提拔护筒；步骤14：孔位回填；步骤15：重复步骤3~步骤14完成所有扩大直径墩基础施工。本发明通过护筒安装、旋挖和泥浆护壁成孔、钢筋笼制作和吊装、混凝土浇筑等工序的过程控制，以及桩基沉渣控制技术应用，实现复杂地质条件下钻孔灌注桩质量一次成优，桩基质量达到标准。
Cast-in-situ bored pile construction method for complex stratum shallow foundation oversized straight pier
一种复杂地层浅基超大直墩的钻孔灌注桩施工方法
CHEN RUI (author) / YANG YISONG (author) / LI LEI (author) / CHEN LIN (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Karst stratum cast-in-situ bored pile construction method
| European Patent Office | 2020
Cast-in-situ bored pile construction method under poor stratum
| European Patent Office | 2024
Soft soil stratum cast-in-situ bored pile construction device
| European Patent Office | 2024
Pile foundation construction process of cast-in-situ bored pile
| European Patent Office | 2024