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A platform for research: civil engineering, architecture and urbanism
Pile casing device for pile foundation construction in karst cave area
The invention belongs to the technical field of pile foundation construction, and particularly relates to a pile casing device for pile foundation construction in a karst cave area. The device comprises an inner-layer pile casing and an outer-layer detection device, the inner-layer pile casing is in a straight cylinder shape and is used for pouring a concrete pile foundation; the outer layer detection device comprises a variable-diameter outer layer protection frame and a karst cave space detector; the variable-diameter outer-layer protection frame is arranged outside the inner-layer protection cylinder, and the outer diameter of the variable-diameter outer-layer protection frame can be adjusted and changed, so that the variable-diameter outer-layer protection frame can be conveniently fixed in a karst cave And the karst cave space detector is arranged on the variable-diameter outer-layer protection frame and is used for detecting the space change of the karst cave. The karst cave space detector is arranged in the karst cave near the pile foundation through the variable-diameter outer-layer protection frame, the karst cave space detector detects the space change of the karst cave in real time, and if it is found that the karst cave develops too fast, the karst cave can be reinforced in a grouting reinforcement mode, that is, a grouting hole is drilled in the ground near the pile foundation into the karst cave, grouting reinforcement is conducted, and therefore the karst cave can be protected. The method is a dynamic reinforcement measure for the pile foundation in the karst cave area, and the construction cost of the pile foundation is reduced.
本发明属于桩基施工技术领域，具体涉及一种溶洞区桩基施工用护筒装置。其包括内层护筒和外层检测装置；内层护筒为直筒状，用于灌注混凝土桩基；外层检测装置包括可变径外层防护架、溶洞空间检测器；可变径外层防护架设置在内层护筒外，可变径外层防护架外径可调节变化，从而便于固定在溶洞区；溶洞空间检测器设置在可变径外层防护架上，用于检测溶洞空间变化。通过可变径外层防护架将溶洞空间检测器设置在桩基附近的溶洞内，通过溶洞空间检测器实时检测溶洞的空间变化，若发现溶洞发育过快，可以再采取注浆加固的方式补强，即在在桩基附近的地面钻设注浆孔至溶洞内并注浆加固，该方法为对溶洞区桩基的动态加固措施，降低了桩基施工成本。
Pile casing device for pile foundation construction in karst cave area
The invention belongs to the technical field of pile foundation construction, and particularly relates to a pile casing device for pile foundation construction in a karst cave area. The device comprises an inner-layer pile casing and an outer-layer detection device, the inner-layer pile casing is in a straight cylinder shape and is used for pouring a concrete pile foundation; the outer layer detection device comprises a variable-diameter outer layer protection frame and a karst cave space detector; the variable-diameter outer-layer protection frame is arranged outside the inner-layer protection cylinder, and the outer diameter of the variable-diameter outer-layer protection frame can be adjusted and changed, so that the variable-diameter outer-layer protection frame can be conveniently fixed in a karst cave And the karst cave space detector is arranged on the variable-diameter outer-layer protection frame and is used for detecting the space change of the karst cave. The karst cave space detector is arranged in the karst cave near the pile foundation through the variable-diameter outer-layer protection frame, the karst cave space detector detects the space change of the karst cave in real time, and if it is found that the karst cave develops too fast, the karst cave can be reinforced in a grouting reinforcement mode, that is, a grouting hole is drilled in the ground near the pile foundation into the karst cave, grouting reinforcement is conducted, and therefore the karst cave can be protected. The method is a dynamic reinforcement measure for the pile foundation in the karst cave area, and the construction cost of the pile foundation is reduced.
本发明属于桩基施工技术领域，具体涉及一种溶洞区桩基施工用护筒装置。其包括内层护筒和外层检测装置；内层护筒为直筒状，用于灌注混凝土桩基；外层检测装置包括可变径外层防护架、溶洞空间检测器；可变径外层防护架设置在内层护筒外，可变径外层防护架外径可调节变化，从而便于固定在溶洞区；溶洞空间检测器设置在可变径外层防护架上，用于检测溶洞空间变化。通过可变径外层防护架将溶洞空间检测器设置在桩基附近的溶洞内，通过溶洞空间检测器实时检测溶洞的空间变化，若发现溶洞发育过快，可以再采取注浆加固的方式补强，即在在桩基附近的地面钻设注浆孔至溶洞内并注浆加固，该方法为对溶洞区桩基的动态加固措施，降低了桩基施工成本。
Pile casing device for pile foundation construction in karst cave area
溶洞区桩基施工用护筒装置
YANG TONGQUAN (author) / HUANG YUFENG (author) / YU JINWEI (author) / DONG QIAN (author) / CHEN YA'NAN (author) / LONG YONG (author) / GUO YING (author) / KE YUANZHU (author) / GUO BIAO (author) / LI QINGFU (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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