1. Market Overview

Shield tunnel segment is the main assembly component of shield construction and the innermost barrier of the tunnel, which bears the role of resisting soil pressure, groundwater pressure and some special loads. Shield tunnel segments are rich in types, according to different materials, can be divided into cast iron segments, reinforced concrete segments and composite segments three categories, reinforced concrete segments belong to high-precision concrete prefabricated components, for the shield segment market mainstream products.

Chart 1 Segment Classification of Shield Tunnel

Data source: Champ Consulting

Current Situation of 2. Shield Tunnel Segment Market Industry Chain

The raw materials of shield segment are mostly bulk commodities, including cement, steel and sand aggregate. The production of shield segment needs to go through the processes of steel bar production, mold preparation, steel bar skeleton molding, concrete pouring, curing and demoulding. The downstream of shield tunnel segment is mainly shield tunnel engineering, which requires extremely high parameters such as dimensional accuracy, compressive strength, impermeability grade, durability and volume stability.

Chart 2 Shield tunnel segment industry chain

Data source: Champ Consulting

Market Scale of Shield Tunnel Segment in 3.

From the perspective of raw material supply, China is a big producer of cement and steel, and its output has long been in the leading position in the world. According to the National Bureau of Statistics,2023China's cement production reached20.23Billion tons, steel production13.63100 million tons, can fully meet the production needs of shield tunnel segments. Benefiting from the abundant supply of raw materials, the development trend of China's shield tunnel segment industry is constantly improving.

On the other hand, with a series of macro-control policies launched by the state in recent years, such as "strengthening the construction of urban road traffic infrastructure" and "strengthening the construction and transformation of urban pipe networks", the industry and local authorities are also actively promoting urban infrastructure construction, and the overall market of shield tunnel segments in China will develop well in the future. According to research,2021The market size of shield tunnel segments in China was approximately18billion yuan,2022The market regulations affected by the outbreak showed a large decline in services, as2023The market size of the tunnel segment has reached20billion, up more40%。

Chart 3 2020-2023Market size of tunnel segments in China

Data source: Champ Consulting Research and finishing.

Market Competition Pattern of 4. Shield Tunnel Segment

The concentration of shield tunnel segment industry in China is relatively low. The main enterprises in the industry include large listed enterprises and small and medium-sized enterprises, which take advantage of their own advantages to seize market share. The overall profitability of the industry is strong, but it is faced with risks such as policy adjustment, raw material price fluctuation and environmental protection policy. The main large-scale national segment enterprises in China are Xinjiang Guotong Pipeline Co., Ltd., Harbin 13th Hydropower Bureau segment Co., Ltd., Ltd., etc, thanks to the geographical advantage, it still occupies a considerable part of the market share, such as Guangzhou Hua Tunwei Prefabrication Co., Ltd., Yutian Jiangtong Cement Products Co., Ltd.

With the short-term structural changes in the domestic infrastructure industry, enterprises need to maintain technological innovation and enhance their core competitiveness to cope with the increasingly fierce market competition.

Chart 4 market competition pattern

Data source: Champ Consulting

Development Trend of Shield Tunnel Segment Market in 5.

Shield tunnel segment is mainly used in shield tunnel engineering, so the dimensional accuracy, compressive strength, impermeability grade, durability, volume stability and other parameters of the product are extremely high.

In recent years, China's shield tunnel segment enterprises and related scientific research institutions continue to increase research efforts, focusing on solving the common problems of shield segment steel corrosion, high temperature burst, local water seepage and so on.