Bidirectional grouting device provided with embedded grouting pipe and construction method
A technology of grouting device and grouting pipe, which is applied in basic structure engineering, construction, etc., to achieve good effect, convenient installation and easy construction
Pending Publication Date: 2019-11-22
ZHEJIANG UNIV OF TECH
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Problems solved by technology
But this kind of grouting pipe needs to be drilled in advance, and this kind of sealing method is only applicable to the outside of the underground diaphragm wall
Method used
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Embodiment 1
[0031] Such as figure 1 As shown, a pre-embedded grouting pipe two-way grouting device is composed of two parts: a combined grouting pipe and a pressurizing device; the combined grouting pipe is composed of two vertical grouting pipes 2 and connected between two Between the vertical grouting pipes 2 and vertical to the vertical grouting pipes 2, it is composed of 7 parallel horizontal grouting pipes 1; both sides of the horizontal grouting pipes 1 are connected with the vertical The grouting pipe 2 is connected, and the middle of the horizontal grouting pipe 1 is provided with a partition 5 that blocks the penetration of two adjacent vertical grouting pipes 2; the horizontal grouting pipe 1 and the vertical grouting pipe 2 A through hole is provided, and a grouting port 3 is arranged at the said through hole, each vertical grouting pipe 2 is arranged at equal intervals on the same vertical line, and two grouting ports are arranged on the same horizontal line 3, and the openin...
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The invention discloses a bidirectional grouting device provided with an embedded grouting pipe and a construction method. The device comprises two parts including a combined grouting pipe and a pressurization device; the combined grouting pipe comprises at least two vertical grouting pipes and a plurality of horizontal grouting pipes which are connected between the two adjacent vertical groutingpipes and are perpendicular to the vertical grouting pipes; separating plates which are used for preventing the two adjacent vertical grouting pipes from communicating with each other are arranged inthe middles of the horizontal grouting pipes; through holes are formed in the horizontal grouting pipes and the vertical grouting pipes; spraying openings are arranged at the through holes and are provided with rubber sleeves which can coat the spraying openings completely; the bottoms of the vertical grouting pipes are sealed; the pressurization device comprises pistons matched with the verticalgrouting pipes; loading mechanisms are arranged at the upper parts of the pistons; and the pistons can slide downwards in the vertical grouting pipes under the action of the loading mechanisms. The device has the advantages of simple materials and equipment, convenience in mounting and easiness in construction.
Description
[0001] Field technology [0002] The invention relates to a two-way grouting device for pre-embedded grouting pipes and a construction method, which are especially suitable for water seepage in underground continuous walls. Background technique [0003] With the continuous development of urbanization, urban land is becoming increasingly tense. The utilization of urban space has gradually shifted to the development and use of underground space. More and more cities are beginning to build subways, and when building subways, the construction of underground continuous walls will be involved. In areas with poor geology and high groundwater level, water seepage often occurs in the underground diaphragm wall, which seriously affects the safety of foundation pit excavation. [0004] The patent with the publication number of 103061344B is a grouting pipe. Although the structure of the grouting pipe is very simple, the grouting hole is not easy to be blocked, the grouting process is s...
Claims
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IPC IPC(8): E02D19/16
CPCE02D19/16
Inventor 王哲郑文豪王启湘张腾遥倪达魏伟伟陈景榜金磊方笛竹陆柯颖赵伟阳许四法
Owner ZHEJIANG UNIV OF TECH