Construction method for bottom sealing treatment of deep foundation pit springs

A construction method and technology for deep foundation pits, which are applied in basic structure engineering, construction, etc., can solve the problems of incomplete back cover and insignificant construction effect, and achieve the effects of high construction efficiency, shortened construction period, and simple and easy operation.

Active Publication Date: 2017-05-31
河北二十冶建设有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for the bottom sealing treatment of deep foundation pit springs, so as to solve the problems of inconspicuous construction effect and incomplete bottom sealing existing in the treatment of deep foundation pit springs in the prior art

Method used

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  • Construction method for bottom sealing treatment of deep foundation pit springs
  • Construction method for bottom sealing treatment of deep foundation pit springs

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Embodiment Construction

[0020] Such as figure 1 and figure 2 Shown, the concrete steps of the construction method that the present invention is used for deep foundation pit spring hole back sealing treatment are:

[0021] (1) According to the site construction situation, locate the springs that need to be blocked in the bottom of the deep foundation pit 2, and mark the positions of the central spring and the surrounding springs. Springs that need to be plugged except the central spring. A water diversion ditch 3 is set between each surrounding spring eye and the central spring eye. The distribution of the entire water diversion ditch 3 is radial in the center. The water diversion ditch 3 is filled with gravel to form a blind ditch, which can allow the water in the surrounding spring eyes to pass through the drainage. The process of ditch flowing into the sump 4 will not affect the pouring of concrete above it, so that the concrete pouring of the deep foundation pit and the drainage of the spring c...

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Abstract

The invention provides a construction method for bottom sealing treatment of spring openings of a deep foundation pit. The construction method comprises the specific steps that a, the spring openings, needing to be blocked, in the deep foundation pit are located, and a diversion ditch is arranged between every peripheral spring opening and the center spring opening; b, a water collection pit is dug in the center spring opening; c, a water collection cover is manufactured, a flange is arranged at an opening of the water collection cover, the center spring opening is covered with the water collection cover, and a water pump is placed in the water collection cover; d, after the water collection cover is mounted, the water pump is started, and gushing water collected in the water collection cover is continuously drawn out of the water collection cover; and e, concrete pouring of the deep foundation pit and the water collection pit is finished in three steps, and the open end of the water collection cover is blocked before the third step of concrete pouring. The problem of gushing happening to the bottom of the deep foundation pit after the deep foundation pit of a coastal area or lake area is dug is solved well through collection, convergence, water drawing, blocking and the like. The construction method is easy to operate and high in construction efficiency, and can also be used for treatment of gushing problems of other areas.

Description

technical field [0001] The invention relates to a method for treating local water gushing in foundation pits, in particular to a construction method for bottom sealing treatment of spring holes in deep foundation pits. Background technique [0002] With the construction and development of urban underground space, there are more and more deep infrastructures such as pump rooms, pools and caissons in the construction of industrial infrastructure such as metallurgy and electric power in coastal and lakeside areas, and the depth of deep foundation pits in my country is also increasing. Then it deepened. When the base is too deep below the water level and the base area is large, the precipitation facilities will be limited to a certain extent, which will affect the precipitation effect. At this time, there may be multiple springs in the base, which will affect the foundation sealing construction of the deep foundation pit, and not only delay the construction period , can also cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/16
Inventor 郭华新
Owner 河北二十冶建设有限公司
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