Karst cave pile foundation construction method

A construction method and technology of karst caves, applied in the direction of foundation structure engineering, sheet pile walls, soil protection, etc., can solve problems such as difficulty in karst cave properties, affecting pile foundation quality, and grout leakage, so as to improve construction efficiency and improve pile foundation construction The effect of quality and firm structure

Inactive Publication Date: 2019-10-11
广东建邦兴业集团有限公司
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Problems solved by technology

[0002] There are many karst caves in the karst area. During the construction of bridges and building pile foundations, the pile foundation passes through the hollow karst caves. Due to the lack of a force-transmitting layer in the karst caves, it is easy to cause problems such as skewing of the pile hammer and slurry leakage, which affects the construction quality.
At present, the filling method is usually used to block the karst caves, so as to avoid slurry or water

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  • Karst cave pile foundation construction method
  • Karst cave pile foundation construction method
  • Karst cave pile foundation construction method

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[0022] This section will describe the specific embodiments of the present invention in detail. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the manual with graphics, so that people can intuitively and vividly understand the text. Each technical feature and overall technical solution of the invention cannot be understood as a limitation on the protection scope of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation description involved, such as up, down, front, back, left, right, etc., indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the pointed device or element must have a specific orie...

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Abstract

The invention discloses a karst cave pile foundation construction method. According to the karst cave pile foundation construction method, in the pile hole forming construction process, a karst cave top plate is broken through, the filling manner is adopted for blocking a karst cave, a drill hole can smoothly pass through the karst cave, in the filling process, the filler can be repeatedly impacted and backfilled until a protection wall is formed, karst cave mortar leakage is prevented, a baffle corresponding to the karst cave is arranged on a steel reinforcement cage, when the steel reinforcement cage is mounted, the steel reinforcement cage is fixed into a pile hole, meanwhile, the baffle can cover an opening of the karst cave, the filling protection wall and the baffle are matched to enable a karst cave blocking structure to be firmer, a large amount of filler does not need to be consumed, the phenomenon that during pile foundation filling, concrete enters the karst cave can be avoided, and the construction efficiency and the pile foundation construction quality can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method for karst cave pile foundations. Background technique [0002] There are many karst caves in the karst area. During the construction of bridges and building pile foundations, the pile foundation passes through the hollow karst caves. Due to the lack of a force-transmitting layer in the karst caves, it is easy to cause problems such as skewing of the pile hammer and slurry leakage, which affects the construction quality. . At present, the filling method is usually used to block the karst caves, so as to avoid slurry or water leakage. However, it is difficult to accurately judge the properties of karst caves in strong karst areas. The construction methods of karst caves with different heights are different, and the filling volume is not easy to grasp. The backfilling volume is too large. The construction difficulty and cost are also high, and...

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Application Information

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IPC IPC(8): E02D27/12E02D5/34E02D3/00E02D3/12
CPCE02D3/00E02D3/12E02D5/34E02D27/12
Inventor 贾育源刘重新吴庭佳李文辉陆海明钟春华黄俊威王庆胡东吉梁业洪
Owner 广东建邦兴业集团有限公司
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