Abstract The subway tunnels built in some coastal cities often cross the soft and hard alternating strata, which makes shield construction more difficult. single mode cannot meet needs of efficient environmental protection, while dual (TBM-EPB) can better adapt to complex geological conditions alternating, effectively improve tunneling efficiency machine, ensure safety timeliness project constr...

objectives: altered movement strategy and postural control has been observed in low back pain (lbp) patients. objective of this study was to determine postural response following support surface translation, also correlations between postural response related measures and disability caused by lbp. methods: 20 healthy subjects and 20 patients with recurrent non specific lbp participated in this ...

Abstract During shield machine construction, the precise determination of control parameters is particularly important for construction safety. By effectively using big data and mining information in it, accurate with geological adaptability can be obtained real time. To this end, study proposes an intelligent online prediction method screw rotation speed Earth pressure balanced (EPB) based on ...

Abstract: The design of retaining walls requires the complete knowledge of the earth pressure distribution behind the wall. Due to the complex soil-structure effect, the estimation of earth pressure is not an easy task; even in the static case. The problem becomes even more complex for the dynamic (i.e., seismic) analysis and design of retaining walls. Several earth pressure models have been de...

The paleoclassical model for radial electron heat transport in tokamak plasmas has been developed in a number of papers over the past few years. In order to facilitate numerical evaluation of it in plasma transport codes, this report summarizes its parameters, formulas and limits in particular regimes. A hierarchy of levels of the paleoclassical model are specified for interpretive (1) and pred...

presented is a method of two-dimensional analysis of the active earth pressure due to simultaneous effect of both soil weight and surcharge of strip foundation. the study’s aim is to provide a rigorous solution to the problem in the framework of upper-bound theorem of limit analysis method in order to produce some design charts for calculating the lateral active earth pressure of backfill when ...

In response to the sustainable development goal of agriculture put forward by United Nations, countries have introduced a series agricultural environmental protection policies. However, effectiveness these policies has been hindered insufficient responses from farmers. This study begins with fundamental logic farmers’ production behavior and first introduces family place identities into theoret...

This study reports different properties of ionospheric perturbations detected to the west and south Korean Peninsula after Hunga-Tonga volcanic eruption on 15 January 2022. Transient wave-like total electron content (TEC) modulations intense irregular TEC are in Peninsula, respectively, about 8 hr eruption. The propagate away from epicenter with a speed 302 m/s. Their occurrence time, propagati...