Optical cable sleeve pipe sealing member and constructing method thereof in hydraulic tunnel concrete plugging body

The invention discloses an optical cable sleeve pipe sealing member. The sealing member is characterized by comprising a nut part and a screw rod part cooperating with the nut part. The nut part with a hollow circular hole has a bolt head and a screw rod with internal screw threads. The other screw rod part has a hollow circular hole and is provided with external screw threads. The hollow nut part with the internal screw threads and the hollow screw rod part with the external screw threads are screwed together. The hollow parts allow optical cable assemblies to pass through. The invention further discloses a construction method of the optical cable sleeve pipe sealing member in a hydraulic tunnel concrete plugging body. The hydraulic tunnel concrete plugging body adopting the optical cable sleeve pipe sealing member has relatively strong bearing capabilities on the part where an optical cable passes. Water leakage, water seepage and water source backflow phenomena after a long-term use can be prevented. Meanwhile, the physical and chemical performance of the optical cable is not affected at all after a long-term use.