Construction method of waterproof curtain containing confined water hard stratum and three-shaft mixing pile device
A technology of water-stop curtain and hard stratum is applied in the field of mixing piles, which can solve the problems of high cost and poor water-proof effect.
Pending Publication Date: 2022-07-05
SHANXI CONSTR ENG CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a water-stop curtain construction method and a three-axis stirring pile device with a pressurized water-hard stratum, so as to alleviate the technical problems of high cost or poor water-proof effect in the prior art
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[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "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 accompanying drawings, and are only for the convenie...
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The invention provides a construction method of a waterproof curtain containing a confined water hard stratum and a three-shaft stirring pile device, and relates to the technical field of stirring piles. The construction method of the waterproof curtain containing the confined water hard stratum comprises the following steps that a drill rod with large and small blades arranged at intervals is used for drilling downwards; the drilling speed is kept between 0.8 m / min and 1 m / min; during drilling, the water cement ratio is controlled to be 1.3-1.6, and the cement amount in a single waterproof curtain pile is controlled to be 18-23%, that is, the cement yield per cubic meter of the stirring pile body is 324-414 kg; when the drill is drilled to the bottom, the drill is lifted, and the drill lifting speed is controlled between 0.4 m / min and 0.5 m / min; construction is conducted in a two-stirring and two-spraying mode, and a single waterproof curtain pile is completed; and the closed waterproof curtain is completed through repeated casing drilling construction. The mixing pile device comprises a pile machine body and a mixing pile drill rod; the stirring pile drill rod is arranged on the pile machine body. The technical effects of low manufacturing cost and good waterproof effect are achieved.
Description
technical field [0001] The invention relates to the technical field of stirring piles, in particular, to a construction method for a water-stop curtain containing a pressurized hydraulic layer and a three-axis stirring pile device. Background technique [0002] At present, triaxial mixing piles are commonly used for construction in soft soil, silt and other geology, and the length is less than 30m; in the hard stratum containing confined water, and the deep foundation pits exceeding 30m, the water stop measures of the support project are all underground continuous. Walls or bite piles and other measures, no other construction plan. [0003] Due to the construction technology, the conventional three-axis mixing pile construction method cannot complete the construction in the water-stop curtain of more than 30m in the hard stratum containing confined water. However, the use of underground diaphragm wall construction occupies a long time period and high cost; the use of occlus...
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IPC IPC(8): E02D19/18E02D5/46E02D15/04E21B17/22
CPCE02D19/18E02D5/46E02D15/04E21B17/22E02D2300/0018
Inventor 梁世荣李伟郝云霞卫剑鹏李龙陈俊杰李丽华何毅薛昊张媛
Owner SHANXI CONSTR ENG CO LTD