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The Central Asian countries are very rich in mineral resources. They are an important production area of the world’s energy resources and an export area of the world’s energy industry, which greatly compensates for the shortage of China’s overseas energy resources supply. China and the Central Asian countries have complementary industrial advantages and the continuous development of economic and trade between the two sides. Reached a new height. This article selects relevant statistics of import and export products of representative industries in China and Central Asia in recent years, and attempts to explore the industrial status of China’s and Central Asian countries’ industrial imports and exports from multiple perspectives, hoping to gain influence on China and Central Asian countries. Industrial import and export industry factors, and to these industrial factors to further put forward the development of China and Central Asian countries industry import and export related industries countermeasures.

With its advantages of low cost and high efficiency, e-commerce is not only favored by ordinary consumers, but also effectively promotes SMEs to find business opportunities and win the market. This article starts with the development scale of China’s e-commerce industry and the status quo of export trade, and measures the overall index of China’s e-commerce industry development level from 2008 to 2018 through empirical methods to analyze its impact on China’s export trade. The results show that the development level of the e-commerce industry has a significant positive impact on China’s export trade. Finally, it analyzes the existing problems in the development of China’s e-commerce industry.

Excavation of tunnel in rock mass refers to complex continuum-discontinuous processes. For capturing the damages of side walls and the supports of bolts/cables, different types of elements shall be used in the same framework. In this work, a novel method is proposed which couples block, particle, and bar elements for simulating the intact rock mass, the broken rock mass, and the supporting system respectively during tunnel excavation. Brittle Mohr-Coulomb fracture constitutive law and tensile fracture constitutive law are introduced for describing the contact behavior between different parts. Penalty springs are adopted for accounting the pre-stresses effects. Moreover, for assuring the proper transitions of forces and displacements between different types of elements, an interpolation coupling approach is presented. Cases considering different tunnel sections and supporting strategies are numerically studied, indicating the reliability of the method.