Grouting and slurry jetting pipe convenient and fast to disassemble

Abstract

The invention discloses a grouting and grouting pipe convenient to disassemble. The grouting and grouting pipe comprises a grouting pipeline, a grout return pipeline and a grouting plug connected with the grouting pipeline and the grout return pipeline. The grouting pipeline comprises a plurality of grouting pipes which are connected with one another; the two ends of the grouting pipe are provided with internal threads and external threads matched with the internal threads respectively. And when the two groups of grouting pipes are connected, one end of each grouting pipe, which is in contact with grout firstly, is provided with an internal thread along the grouting direction of the grout. The technical problems that in the prior art, a PVC pipe is prone to deformation and falling off, needs to be replaced frequently and cannot be reused are solved, and the technical effects that the slurry jetting pipe is not prone to falling off, installation is convenient and fast, the construction efficiency is improved, and reutilization is achieved are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering, and in particular to a conveniently detachable grouting and grouting pipe. Background Art

[0002] During the construction of water conservancy and hydropower projects, in order to ensure that the dam foundation can meet the leakage requirements, many anti-seepage grouting methods are usually designed, mainly anti-seepage curtain grouting, combined with foundation consolidation grouting, cavern lap curtain, cavern consolidation grouting, backfill grouting, etc. to form an overall anti-seepage system.

[0003] In the prior art, in order to ensure the quality of grouting construction, a grouting pipe is installed at the end of the grouting plug in the grouting hole section. The grouting pipe is usually made of PVC pipe and is tied to the steel pipe at the end of the grouting plug with iron wire. However, after the PVC grouting pipe is installed, it may fall off during the grouting process due to loose binding and fall off during the plugging process after the grouting is completed. At the same time, the PVC pipe is easy to deform, so it needs to be replaced frequently and cannot be reused. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a convenient detachable grouting and grouting pipe, comprising:

[0005] A grouting pipeline, a return grouting pipeline, and a grouting plug connected to the grouting pipeline and the return grouting pipeline;

[0006] The grouting pipeline comprises a plurality of connected grouting pipes;

[0007] Both ends of the grouting pipe are respectively provided with internal threads and external threads matching the internal threads;

[0008] When two groups of grouting pipes are connected, along the injection direction of the slurry, the end of the grouting pipe that first contacts the slurry is an internal thread.

[0009] In some embodiments, the two groups of grouting pipes are connected by connecting the internal threads of one group of grouting pipes to the external threads of the other group of grouting pipes.

[0010] In some embodiments, the slurry return pipeline includes a plurality of connected grouting pipes.

[0011] In some embodiments, the length of the grout return pipeline located on the side of the grout plug away from the grouting hole is shorter than the length of the grouting pipeline.

[0012] In some embodiments, along the flow direction of the slurry, the grouting pipe located at the head of the grouting pipeline has only one end provided with an internal thread, and the grouting pipe located at the tail of the grouting pipeline has only one end provided with an external thread.

[0013] By adopting the above technical solution, the present invention mainly has the following technical effects:

[0014] The two ends of the grouting pipe are provided with internal threads and external threads matching the internal threads; when two sets of grouting pipes are connected, along the injection direction of the slurry, the end of the grouting pipe that first contacts the slurry is the internal thread. The technical problems of the prior art that PVC pipes are easy to deform and fall off, need to be frequently replaced, and cannot be reused are solved, and the technical effects of the grouting pipe not being easy to fall off, convenient installation, improved construction efficiency, and reuse are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a conveniently detachable grouting and grouting pipe of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a conveniently detachable grouting and grouting pipe of the present invention;

[0017] The meanings of the reference numerals are as follows:

[0018] 1. Grouting pipeline; 11. Grouting pipe; 111. Internal thread; 112. External thread;

[0019] 2. Return slurry pipeline;

[0020] 3. Grout plug. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] See also Figure 1-Figure 2 The present invention provides a conveniently disassembled grouting grouting pipe, comprising: a grouting pipeline 1, a return grouting pipeline 2, and a grouting plug 3 connected to the grouting pipeline 1 and the return grouting pipeline 2.

[0024] In some embodiments, the grouting pipeline 1 is a grouting channel, and the return slurry pipeline 2 is a return slurry channel. The slurry is injected into the grouting hole through the grouting pipeline 1, a part of the slurry will penetrate into the cracks of the rock mass, and the other part of the slurry will return to the slurry storage tank through the return slurry pipeline 2.

[0025] In some embodiments, the grouting pipeline 1 includes a plurality of connected grouting pipes 11, and a group of pipelines capable of injecting slurry into the grouting hole is formed by connecting the plurality of grouting pipes 11 end to end. In some more preferred embodiments, the two ends of the grouting pipes 11 are respectively provided with internal threads 111 and external threads 112 adapted to the internal threads 111, and the two groups of grouting pipes 11 are connected in a manner that the internal threads 111 of one group of grouting pipes 11 are connected to the external threads 112 of the other group of grouting pipes 11. By connecting the two groups of grouting pipes 11 by means of threads, on the one hand, the plurality of grouting pipes 11 are connected, and on the other hand, the detachable connection of the grouting pipeline 1 can be realized, so as to facilitate the operator to quickly disassemble and assemble.

[0026] In some more preferred embodiments, when two groups of grouting pipes 11 are connected, along the injection direction of the slurry, the end of the grouting pipe 11 that first contacts the slurry is an internal thread 111. By setting the end of the grouting pipe 11 that first contacts the slurry to an internal thread 111, the connection between the two groups of grouting pipes 11 is located on the inner side of the grouting pipe 11, thereby enhancing the sealing when the slurry enters the grouting pipeline 1.

[0027] In some embodiments, the slurry return pipeline 2 also includes a plurality of connected grouting pipes 11. By connecting the plurality of grouting pipes 11 end to end, a group of pipelines capable of returning the slurry from the grouting holes to the slurry storage barrel is formed.

[0028] In some embodiments, along the flow direction of the slurry, the grouting pipe 11 located at the head of the grouting pipeline 1 has only one end provided with an internal thread 111, and the grouting pipe 11 located at the tail of the grouting pipeline 1 has only one end provided with an external thread 112.

[0029] The grouting plug 3 is connected to the grouting pipeline 1 and the return grouting pipeline 2. In some embodiments, the grouting plug 3 is arranged at the drilling hole of the grouting hole. On the one hand, it is used to block the hole opening to prevent slurry leakage. On the other hand, it also has the functions of controlling the grouting pressure and preventing the slurry from flowing back.

[0030] In some embodiments, the length of the return slurry pipeline 2 located on the side of the grouting plug 3 away from the grouting hole is shorter than the length of the grouting pipeline 1, so that the slurry can penetrate into the cracks of the rock mass after entering the grouting hole, and the excess slurry can return to the slurry storage barrel through the return slurry pipeline 2.

[0031] Finally, it should be noted that the embodiments disclosed in the present invention are only preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A convenient and detachable grouting and grouting pipe, characterized in that: include: A grouting pipeline, a return grouting pipeline, and a grouting plug connected to the grouting pipeline and the return grouting pipeline; The grouting pipeline comprises a plurality of connected grouting pipes; Both ends of the grouting pipe are respectively provided with internal threads and external threads matching the internal threads; When two groups of grouting pipes are connected, along the injection direction of the slurry, the end of the grouting pipe that first contacts the slurry is an internal thread.

2. The conveniently detachable grouting and grouting pipe according to claim 1 is characterized in that: The two groups of grouting pipes are connected in a manner that the internal threads of one group of grouting pipes are connected to the external threads of the other group of grouting pipes.

3. The conveniently detachable grouting and grouting pipe according to claim 1 is characterized in that: The grout return pipeline includes a plurality of connected grouting pipes.

4. The conveniently detachable grouting and grouting pipe according to claim 3 is characterized in that: The length of the return grout pipeline located on the side of the grouting plug away from the grouting hole is shorter than the length of the grouting pipeline.

5. The conveniently detachable grouting and grouting pipe according to claim 1 is characterized in that: Along the flow direction of the slurry, the grouting pipe located at the head of the grouting pipeline has only one end provided with an internal thread, and the grouting pipe located at the tail of the grouting pipeline has only one end provided with an external thread.

Images