Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for continuously conveying large-diameter tubular piles in cement-soil wall
The invention relates to the technical field of building construction, and discloses a construction method for continuously conveying large-diameter tubular piles in a cement-soil wall. According to the construction method, the perpendicularity of continuous pile feeding of the large-diameter tubular piles in the cement-soil wall and the pile forming elevation of pile bodies are accurately controlled by adopting multiple measures such as erecting a positioning frame and strictly controlling the pile feeding time, the pile feeding construction precision of the tubular piles is ensured, compared with methods of adopting H-shaped steel support, row piles, three-axis water stop support and an underground diaphragm wall, the large-diameter tubular piles are adopted for the continuous pile feeding has the advantages that the steel consumption can be reduced, the construction cost is optimized, the continuous large-diameter tubular pile feeding is carried out 1-2 hours after grouting and wall forming, quality accidents caused by rapid sinking of the pile bodies are avoided, meanwhile, a pile machine cutter is located underground all the time in the whole construction process, and therefore the problems that the aspects of the wall forming depth, uniformity, continuity, surface flatness, thickness, wall rigidity, watertightness and the like in a traditional foundation pit supporting construction technology cannot meet the design requirements of the engineering super-large-area first-grade deep foundation pit can be solved.
本发明涉及建筑施工技术领域，且公开了水泥土墙内大直径管桩连续送桩施工工法；本发明通过采取架设定位架、严控送桩时间等多项措施精确控制水泥土墙内大直径管桩连续送桩的垂直度和桩身成桩标高，确保管桩送桩施工精度；与采用H型钢支护、排桩+三轴止水支护、地下连续墙相比，采用大直径管桩连续送桩可节约钢材用量、优化施工成本；在注浆成墙后1～2h实施大直径管桩连续送桩，避免了桩身快速下沉造成质量事故，同时桩机切削器在整个施工过程中始终位于地面以下，从而避免传统基坑支护施工工艺在成墙深度、均匀度、连续性，表面平整度、厚度以及墙体刚度、止水性等方面都已不能满足工程超大面积一级深基坑设计要求。
Construction method for continuously conveying large-diameter tubular piles in cement-soil wall
The invention relates to the technical field of building construction, and discloses a construction method for continuously conveying large-diameter tubular piles in a cement-soil wall. According to the construction method, the perpendicularity of continuous pile feeding of the large-diameter tubular piles in the cement-soil wall and the pile forming elevation of pile bodies are accurately controlled by adopting multiple measures such as erecting a positioning frame and strictly controlling the pile feeding time, the pile feeding construction precision of the tubular piles is ensured, compared with methods of adopting H-shaped steel support, row piles, three-axis water stop support and an underground diaphragm wall, the large-diameter tubular piles are adopted for the continuous pile feeding has the advantages that the steel consumption can be reduced, the construction cost is optimized, the continuous large-diameter tubular pile feeding is carried out 1-2 hours after grouting and wall forming, quality accidents caused by rapid sinking of the pile bodies are avoided, meanwhile, a pile machine cutter is located underground all the time in the whole construction process, and therefore the problems that the aspects of the wall forming depth, uniformity, continuity, surface flatness, thickness, wall rigidity, watertightness and the like in a traditional foundation pit supporting construction technology cannot meet the design requirements of the engineering super-large-area first-grade deep foundation pit can be solved.
本发明涉及建筑施工技术领域，且公开了水泥土墙内大直径管桩连续送桩施工工法；本发明通过采取架设定位架、严控送桩时间等多项措施精确控制水泥土墙内大直径管桩连续送桩的垂直度和桩身成桩标高，确保管桩送桩施工精度；与采用H型钢支护、排桩+三轴止水支护、地下连续墙相比，采用大直径管桩连续送桩可节约钢材用量、优化施工成本；在注浆成墙后1～2h实施大直径管桩连续送桩，避免了桩身快速下沉造成质量事故，同时桩机切削器在整个施工过程中始终位于地面以下，从而避免传统基坑支护施工工艺在成墙深度、均匀度、连续性，表面平整度、厚度以及墙体刚度、止水性等方面都已不能满足工程超大面积一级深基坑设计要求。
Construction method for continuously conveying large-diameter tubular piles in cement-soil wall
水泥土墙内大直径管桩连续送桩施工工法
WANG DINGGUO (Autor:in) / SU LEI (Autor:in) / HUANG JIANGLI (Autor:in) / DENG SONGBAI (Autor:in) / LIN JIANWEI (Autor:in)
02.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Construction device and construction method for super-large-diameter cement soil tubular pile
| Europäisches Patentamt | 2022
Large Diameter Steel Tubular Piles for Optimum Seismic Performance
| British Library Conference Proceedings | 1999
| Engineering Index Backfile | 1954
| TIBKAT | 1990