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Anti-floating anchor rod construction method

A construction method and technology of anti-floating anchor rods, which are applied in infrastructure engineering, protective devices, buildings, etc., can solve the problems of unfavorable mechanical construction on the working face and tight construction period, and achieve the effect of strengthening stability and speeding up the progress of the construction period

Active Publication Date: 2019-01-11
浙江坤德创新岩土工程有限公司
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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a construction method for anti-floating anchor rods, which solves the problems in the prior art that the working face after foundation pit excavation is not conducive to mechanical construction and the construction period is tight

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Embodiment Construction

[0038] In the following, the present invention will be further described in conjunction with specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments or technical features described below can be combined arbitrarily to form new embodiments.

[0039] In the description of the present invention, it should be noted that for orientation words, such as the term "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise " and other indication orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, ...

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Abstract

The invention discloses an anti-floating anchor rod construction method. According to the anti-floating anchor rod construction method, an anchor rod is constructed before a foundation pit is excavated, a reinforcing part is formed in the soil body surrounding the upper part of the anchor rod through high-pressure rotary spraying, and it is guaranteed that the anchor rod does not deflect when thefoundation pit is excavated. In addition, beforehand construction of the anti-floating anchor rod can be synchronized with the construction of a pile foundation and the maintenance, no extra construction period is occupied, and thus the construction period progress can be accelerated; the anti-floating anchor rod can be constructed before the foundation pit is excavated, so that the problem that the working plane after excavation is not beneficial to mechanical construction due to the fact that the soil at the bottom of the foundation pit is poor is solved; and the high-pressure rotary spraying method is adopted by the construction method, partial cement soil below the designed excavation bottom plane is reinforced, so that the stability of the anchor rod itself and the stability of the whole foundation pit, especially the soft soil foundation pit, are enhanced.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an anti-floating anchor construction method. Background technique [0002] As an anti-floating measure, the anti-floating anchor rod has the advantages of strong anti-floating ability, flexible layout, and easy construction. It is often used in anti-floating design to resist the buoyancy brought by groundwater to buildings. [0003] At present, the construction of anti-floating anchors is basically carried out at the bottom of the foundation pit, but in some cases, the soil quality at the bottom of the foundation pit after excavation is poor, and the site conditions are extremely unfavorable to the construction of the anchor, and even cannot be constructed normally. Therefore, it is necessary to carry out additional ground treatment (such as hardening, paving, etc.) on the bottom of the pit before construction, resulting in an increase in construction costs. At the sam...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/12
CPCE02D31/12
Inventor 吕美东陈天雄
Owner 浙江坤德创新岩土工程有限公司
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