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A platform for research: civil engineering, architecture and urbanism
Mechanical pore-forming cast-in-place pile karst cave blocking method
The invention relates to a mechanical pore-forming cast-in-place pile karst cave blocking method, and belongs to the technical field of karst cave filling. The method comprises the following steps: S1, measurement lofting is conducted; S2, a steel casing is manufactured and buried; S3, a drilling machine is in place; S4, a drilling machine drills to form a hole; S5, a karst cave is positioned; S6, the drilling machine drills a final hole; S7, hole cleaning and acceptance inspection are conducted; S8, a reinforcement cage is manufactured and installed; S9, a guide pipe is descended; S10, secondary hole cleaning is carried out; and S11, underwater concrete pouring is conducted. The method solves the problem that the concrete over-filling amount is difficult to control due to the fact that the size of the karst cave in the pile foundation cannot be judged, construction is easy, convenient and efficient, the construction period is shortened compared with traditional backfilling and re-drilling, cost is reduced compared with direct pouring of concrete to fill the karst cave, and meanwhile pollution to the environment is reduced. The method has good social benefits and economic benefits, and is worthy of being popularized and used in future similar projects.
本发明涉及一种机械成孔灌注桩溶洞封堵方法，属于溶洞填充技术领域，包括以下步骤：S1、测量放样；S2、钢护筒制作及埋设；S3、钻机就位；S4、钻机钻进成孔；S5、溶洞定位；S6、钻机钻进终孔；S7、清孔验收；S8、钢筋笼制作及安装；S9、下导管；S10、二次清孔；S11、水下混凝土灌注。本发明解决了因桩基中无法判断溶洞大小而导致混凝土超灌量难以控制的问题，施工简便高效，相比传统回填土重新钻孔降低施工周期，相比直接灌注混凝土填充溶洞降低了成本，同时降低了对环境的污染，具有较好的社会效益和经济效益，值得在今后类似工程中推广使用。
Mechanical pore-forming cast-in-place pile karst cave blocking method
The invention relates to a mechanical pore-forming cast-in-place pile karst cave blocking method, and belongs to the technical field of karst cave filling. The method comprises the following steps: S1, measurement lofting is conducted; S2, a steel casing is manufactured and buried; S3, a drilling machine is in place; S4, a drilling machine drills to form a hole; S5, a karst cave is positioned; S6, the drilling machine drills a final hole; S7, hole cleaning and acceptance inspection are conducted; S8, a reinforcement cage is manufactured and installed; S9, a guide pipe is descended; S10, secondary hole cleaning is carried out; and S11, underwater concrete pouring is conducted. The method solves the problem that the concrete over-filling amount is difficult to control due to the fact that the size of the karst cave in the pile foundation cannot be judged, construction is easy, convenient and efficient, the construction period is shortened compared with traditional backfilling and re-drilling, cost is reduced compared with direct pouring of concrete to fill the karst cave, and meanwhile pollution to the environment is reduced. The method has good social benefits and economic benefits, and is worthy of being popularized and used in future similar projects.
本发明涉及一种机械成孔灌注桩溶洞封堵方法，属于溶洞填充技术领域，包括以下步骤：S1、测量放样；S2、钢护筒制作及埋设；S3、钻机就位；S4、钻机钻进成孔；S5、溶洞定位；S6、钻机钻进终孔；S7、清孔验收；S8、钢筋笼制作及安装；S9、下导管；S10、二次清孔；S11、水下混凝土灌注。本发明解决了因桩基中无法判断溶洞大小而导致混凝土超灌量难以控制的问题，施工简便高效，相比传统回填土重新钻孔降低施工周期，相比直接灌注混凝土填充溶洞降低了成本，同时降低了对环境的污染，具有较好的社会效益和经济效益，值得在今后类似工程中推广使用。
Mechanical pore-forming cast-in-place pile karst cave blocking method
一种机械成孔灌注桩溶洞封堵方法
WAN YUAN (author) / YANG XIAOHUI (author) / TIAN XIAOLU (author) / REN HONGSHUANG (author) / ZHOU HAIJUN (author) / WANG HANG (author) / LIU SHUI (author) / CHEN JUN (author) / ZHU YUANKUN (author)
2022-01-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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