Micro top pipe

1. Product Introduction

The non excavation high-performance rigid polyvinyl chloride (PVC-H) micro top pipe for drainage and sewage is a specialized pipe for micro top pipes developed and launched by Hubei Jinma Plastic Industry Co., Ltd. It uses polyvinyl chloride polymer mixture as raw material, adds polymer nanomaterials and necessary additives in corresponding proportions, and is uniformly mixed and extruded to form the pipe. This pipe has been optimized and tested multiple times in cooperation with the School of Materials Science and Engineering at Hubei University. Its performance has reached a relatively high level in China, with a nominal pressure of not less than 0.32MPa, a length of 1 or 2 meters, a nominal inner diameter of 200mm~800mm, a ring, and a compressive strength of>66kN/cm2. It is connected with stainless steel sleeves and rubber rings. Execution standards: O/HBJM stiffness reaches 50kN/m 20006-2021, T/CECS1113-2022 "Technical Specification for Micro Top Pipe in Water Supply and Drainage Engineering".

2. Application Fields

Municipal engineering: used for underground non excavation drainage, sewage discharge, rainwater collection, water conveyance, ventilation, etc

Electrical and telecommunications: used as protective pipes for underground non excavation power cables, optical cables, and communication signal cables

Road engineering: can be used as drainage pipelines for railways, highways, golf courses, and football fields

3. Specifications and dimensions

4. Construction and installation

1. Jinma Pipe Industry provides the "Jinma Micro Top - Low Load Micro Top Pipe Spiral Soil Discharge One time Construction System Solution", which has a small construction space, short construction period, no noise, and no impact on the surrounding environment.

2. The low load micro top pipe spiral soil discharge one-time construction method is a new type of underground non excavation pipeline paving construction technology, which is mature in Japan and Germany. This construction method has a market share of 51% in Japan (according to the 2015 statistical data of the Japan Promotion Technology Association). The low load micro top pipe spiral soil discharge one-time construction method technology uses the thrust generated by the propulsion equipment in the working well, combined with a stainless steel joint dedicated one meter long pipe joint spiral to completely excavate and overcome the friction between the pipeline and the surrounding soil. The pipe joint is pushed into the soil layer according to the design elevation, and the hydraulic power device is used to drive the excavator head to rotate and excavate the soil layer through the spiral mechanism inside the pipeline. The pipeline to be laid is pushed in at the same time, and the cut soil passes through the pipeline. Excavated spiral pipes are transported to the soil bucket of the pipe jacking equipment to complete the pipeline laying.

3. The advantages of the "Jinma Micro Top - Low Load Micro Top Pipe Spiral Soil Discharge One time Construction System Solution" are obvious: the pipeline does not bear thrust; using a one-time construction method, spiral excavation and propulsion, the construction method is simple, the process is few, the construction period is short, and the comprehensive construction cost is low. The machine head contains a soil chamber, which ensures soil pressure balance and can protect the excavated soil, ensure the safety of operators and mechanical equipment, withstand pressure from the formation, prevent the invasion of groundwater or quicksand, and have little disturbance to the surrounding soil. There will be no pipe joint explosion, water leakage, pollution of groundwater and ground uplift accidents. The construction speed is fast, the operation is safe, and it does not affect the production and life around the construction well.

5. Engineering Cases