The Structure and Construction Method of Preventing Perforation and Grout Leakage of Bored Pile in Water

A technology of bored cast-in-place piles and a construction method, which is applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problems of difficulty in pressing and pulling out casings, inability to guarantee construction quality, and high construction costs, and achieve enhanced vertical construction. The effect of improving the bearing capacity in the direction and level, avoiding the difficulty of extraction and ensuring the construction quality

Active Publication Date: 2016-01-13
德达交通建设发展集团有限公司
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Problems solved by technology

However, both methods have their own defects: the construction quality of the mud wall protection method cannot be guaranteed, and it is easy to shrink holes and collapse holes, and the perforation will leak slurry; the construction method of the full casing method is relatively expensive and cumbersome. Difficulty entering and withdrawing the cannula

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  • The Structure and Construction Method of Preventing Perforation and Grout Leakage of Bored Pile in Water
  • The Structure and Construction Method of Preventing Perforation and Grout Leakage of Bored Pile in Water
  • The Structure and Construction Method of Preventing Perforation and Grout Leakage of Bored Pile in Water

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Embodiment Construction

[0036] In this embodiment, the technical requirements for steel bar binding and steel plate welding construction, the ratio of cement soil, concrete and active materials, and the technical requirements for pouring and pouring construction will not be repeated in this embodiment, and the structural characteristics and aspects of the invention involved in the present invention will be emphasized. Efficacy, and with the accompanying drawings, describe in detail as follows:

[0037] refer to figure 1 As shown, the structure for preventing perforation and leakage of bored piles in water is provided with an outer casing 1 on the periphery of the reinforced concrete bored pile 4, and is arranged from top to bottom between the reinforced concrete bored pile 4 and the outer casing 1. The active material slurry solid protection plate 2, the active material slurry solid protection wall 8, and the cement soil water stop protection wall 9 are set, wherein the diameter of the active materi...

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Abstract

The invention relates to a structure for preventing perforated grout leakage of bored piles in water and a construction method thereof. An outer casing is arranged on the periphery of the reinforced concrete bored piles, and an outer casing is arranged between the reinforced concrete bored piles and the outer casing from top to bottom. The active material slurry-solid protection plate and the active material slurry-solid protection wall are provided with a cement-soil water-stop retaining wall under the active material slurry-solid protection wall; the diameter of the active material slurry-solid protection plate is larger than the active material slurry-solid protection wall and the cement-soil water-stop protection wall; A reinforcement cage is arranged in the middle of the active material slurry reinforcement plate to position the embedded parts; the reinforced concrete bored pile is formed by placing a reinforcement cage in the inner casing and then pouring concrete. The casing of the invention has good structural stability, good environmental protection and relatively low manufacturing cost, can effectively prevent perforated grout leakage of bored piles in water, and has good technical and economic benefits.

Description

technical field [0001] The invention relates to a protective structure and a construction method of bored cast-in-place piles, in particular to a structure and a construction method for preventing perforation and leakage of cast-in-place piles in water. The utility model belongs to the field of pile foundation engineering, and is suitable for pile foundation construction requiring prevention of perforated grout leakage and high-quality bored piles in water. Background technique [0002] Bored cast-in-situ pile is a pile made by forming a pile hole in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation, and placing a steel cage in it and pouring concrete. It is the most commonly used form in deep foundations. . Compared with other types of foundations, it is not restricted by conditions such as geography, geological conditions, climatic conditions, groundwater level, pile diameter, and pile body length. It has the advantages of high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38
CPCE02D5/38
Inventor 王新泉
Owner 德达交通建设发展集团有限公司
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