Artificial dewatering and dynamic compaction foundation reinforcement method
A technology of foundation reinforcement and artificial precipitation, which is applied in infrastructure engineering, soil protection, construction, etc., and can solve the problems of poor foundation treatment effect
Inactive Publication Date: 2019-01-01
江苏燕宁工程科技集团有限公司
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[0005] The purpose of the present invention is to provide a method of artificial precipitation and dynamic compaction foundation reinforcement to alleviate the technical problem of poor foundation treatment effect in the prior art
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[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenienc...
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The invention relates to the technical field of foundation treatment, in particular to an artificial dewatering and dynamic compaction foundation reinforcement method. The artificial dewatering and dynamic compaction foundation reinforcement method comprises the following steps that organic matters and other sundries on the surface layer of an engineering site are removed, and earth bags and smalllow-lying pits in the site are leveled to the same elevation; positioning, setting out and setting up of elevation points and coordinate points are carried out in the engineering site; a high vacuumwell point dewatering method and a drainage ditch excavation dewatering method are adopted for combined dewatering; and the method of three times of local compaction and one time of full compaction isadopted for dynamic compaction construction, wherein dynamic compaction adopts a column hammer to impact to form holes, the diameter of the column hammer is 2.3-2.5m, the depth of the formed holes isno more than 1.5m, and the arrangement of the holes adopts quincunx shaped point distribution. The artificial dewatering and dynamic compaction foundation reinforcement method is suitable for the treatment of shallow soft soil, the bearing capacity of a shallow foundation is low and the soil quality is weak, and the shallow soft soil and the shallow foundation cannot meet a site for safe walkingof construction machinery and equipment; and through the artificial dewatering and dynamic compaction foundation reinforcement method, the bearing capacity of the shallow foundation can be effectivelyimproved, the requirements of the on-site construction site are met, and the artificial dewatering and dynamic compaction foundation reinforcement method has the advantages of lower cost, simple construction technology and short construction period.
Description
technical field [0001] The invention relates to the technical field of foundation treatment, in particular to artificial precipitation and dynamic compaction foundation reinforcement methods. Background technique [0002] As an important link in the construction field, foundation treatment directly affects the effect, economic cost and construction period of the project. Due to the scarcity of land resources, land reclamation projects are increasing day by day, and coastal areas, breeding ponds, rice fields and other lands are requisitioned and used as construction sites. This type of site has the characteristics of weak soil quality, high compressibility, under-consolidation, shallow buried water table, and difficulty in mechanical walking during construction. For this kind of weak foundation soil, there are usually replacement and filling methods, vacuum surcharge preloading method, riprap method, cement-soil mixing pile, dynamic compaction method, etc. These methods hav...
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IPC IPC(8): E02D3/046E02D3/10
CPCE02D3/046E02D3/10
Inventor 刘国庆朱宏伟熊化波缪建新周育彬李光选刘幸福
Owner 江苏燕宁工程科技集团有限公司