Dewatering and drainage positioning grouting guide pipe and using method thereof
A technology of grouting conduit and grouting, which is applied in construction, infrastructure engineering, etc., can solve the problems of long construction period and small applicability of construction methods, and achieve the effects of saving cost and construction period, reducing adverse effects, and facilitating installation and construction
Active Publication Date: 2020-12-15
ZHEJIANG UNIV CITY COLLEGE
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Problems solved by technology
[0005] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a positioning grouting conduit for drainage and its use method, which solves the problems of long construction period and small applicability of the construction method, and realizes the rapid positioning of grouting while reducing the The purpose of the groundwater level
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0037] Such as figure 1As shown, the positioning grouting conduit provided in this embodiment includes a perforated steel pipe 1, a grouting guide pipe 4 and a grouting conduit 6; It consists of a section with a hole in the middle, a section without holes at the rear end 1-2, and a seal 1-5; the front section of the steel pipe with holes adopts an awl-shaped tip, which can be easily tapped into the hole that needs drainage and grouting, and realizes the positioning and grouting of drainage. The rapid and safe construction of the conduit saves the construction cost and construction period, and has little impact on the surrounding environment of the construction site of the drainage positioning grouting conduit; the middle hole section of the perforated steel pipe 1 is symmetrically and evenly arranged with two holes along the axial direction. A row of r...
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The invention discloses a dewatering and drainage positioning grouting guide pipe and a using method thereof. The dewatering and drainage positioning grouting guide pipe comprises a perforated steel pipe, a grouting guide pipe body and a grouting guiding pipe body. The perforated steel pipe is composed of a front-end awl-shaped tip, a middle perforated section, a rear-end non-perforated section and a seal; two rows of radial grouting holes are symmetrically and evenly formed in the middle perforated section of the perforated steel pipe in the axial direction, two rows of water pumping holes are symmetrically and evenly formed, the two rows of radial grouting holes and the two rows of water pumping holes are staggered and orthogonal on the cross section of the perforated steel pipe, and theradial grouting holes are directly connected with the grouting guide pipe body and an external rock-soil layer; and the water pumping holes are connected with a water pumping channel and the externalrock-soil layer, so that water pumping and grouting are synchronously carried out. According to the dewatering and drainage positioning grouting guide pipe, through separation of water pumping and grouting, improvement of an existing grouting technology is achieved, and the efficiency of preventing and treating the underground water seepage damage problem is improved.
Description
technical field [0001] The invention relates to a grouting device, in particular to a drainage drainage positioning grouting conduit and a method for using the same, which can be used for the prevention and rapid treatment of engineering seepage damage caused by groundwater. Background technique [0002] The existing positional grouting technology has been applied to various projects, for example, in excavation mines, it can be used to strengthen bedrock and mine slopes, and through hydraulic, pneumatic or electrochemical methods, some good The grout consolidated with the rock mass is injected into the voids of the rock mass to achieve the purpose of improving the physical properties of the rock mass; in the reinforcement of the subgrade, the positioning grouting technology is used to reinforce the subgrade to prevent its collapse from causing losses; continuous underground During the wall excavation process, due to the change of the diaphragm wall force, it is easy to cause...
Claims
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Login to View More IPC IPC(8): E02D15/02E02D19/10E02D19/16
CPCE02D15/02E02D19/10E02D19/16E02D2250/003
Inventor 章丽莎孙逸夫张金红魏纲李冰河赵春艳张昌桔
Owner ZHEJIANG UNIV CITY COLLEGE