Waterproof curtain plugging construction method
A construction method and technology of water-stop curtains, which are applied in the construction of water-stop curtains and in the field of waterproof and anti-seepage, can solve problems such as increasing costs, achieve the effects of ensuring the effect of plugging, fast and convenient plugging process, and reducing the amount of input
Inactive Publication Date: 2019-12-31
北京东地岩土工程有限公司
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Problems solved by technology
[0004] like figure 1 As shown, the pile row support and curtain piles in the existing foundation pit are alternately arranged in turn for water isolation, and the curtain piles adopt high-pressure rotary spraying curtain piles; Right behind the sand point, that is, on the outside of the foundation pit, vertical high-pressure jet grouting piles are installed to strengthen the water-stop effect. Generally, water seepage and sand inrush points will appear when the foundation pit is excavated to a certain depth. The pressure of groundwater on the side wall of the foundation pit from the upper mouth of the foundation pit to the water seepage point is relatively small, which belongs to the non-essential water-stop strengthening section. Therefore Adding vertical high jetting piles outside the foundation pit to strengthen the water-stop effect will increase unnecessary costs
Method used
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Embodiment ： 1 approach ，，，， 1 。 specific Embodiment approach
[0030] Excavators are equipped to operate synchronously at the excavation site of the foundation pit. When the curtain pile 2 seeps water during the excavation process, the earthwork excavation in the foundation pit is stopped immediately, and then the degree of water seepage is checked for the curtain pile 2 section by section.
[0031] Such as figure 2 As shown, when there is a hole in the curtain pile 2 and the water seepage is small, the following steps are adopted; first, a layer of brick wall 3 is stacked from bottom to top along the middle part of the curtain pile 2, and while the brick wall 3 is stacked, Three layers of woven bags 4 are tiled on the side wall of the brick wall 3 facing the curtain pile 2. When the brick wall 3 can completely cover the cavity or water seepage point, the corners of the woven bag 4 are hung on the brick wall 3, Then use dry cement powder to fill between the woven bag 4 and the brick wall 3, so that the sand and soil will no longer be los...
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The invention discloses a waterproof curtain plugging construction method, and relates to waterproof and seepage prevention methods in the field of construction. According to the technical scheme of the waterproof curtain plugging construction method, the waterproof curtain plugging construction method is characterized by comprising the following steps that S1, section investigation is conducted on the water seepage degree of a curtain pile with water seepage; S2, firstly, brick wall stacking for sand blocking and then inter-pile pouring for closing are conducted on a water seepage point withthe low water seepage degree; S3, flow guiding for draining and then concrete wall pouring for closing are conducted on a water seepage point with the high water seepage degree; and S4, foundation pitearthwork operation is continually conducted. By means of the waterproof curtain plugging construction method, the corresponding treatment measure can be adopted for plugging according to the water seepage degree of the curtain, the plugging effect is high, and the unnecessary waste is reduced.
Description
technical field [0001] The invention relates to a method for waterproofing and anti-seepage in the field of construction, in particular to a construction method for plugging water-tight curtains. Background technique [0002] Foundation pits located below the groundwater table need to take measures to drain groundwater during construction. When the aquifer is rich in water and difficult to drain, or precipitation may cause damage such as deformation of surrounding buildings, a curtain water-stop solution is often used. [0003] As a waterproof facility for underground foundation pits, the water-stop curtain is the general term for the water-stop series around the main body of the project. For some foundation pits that are not very deep, its foundation pit enclosure is divided into three parts: one part is the retaining pile part, which mainly acts as a retaining wall, and may be in the form of reinforced concrete pouring piles or other forms Pile, there is a certain gap bet...
Claims
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Login to View More IPC IPC(8): E02D19/18
CPCE02D19/18
Inventor 陈军
Owner 北京东地岩土工程有限公司