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If the differential settlement after construction of the subgrade is too large, not only the pipelines will be damaged and broken affecting the normal work condition, but also the surrounding environment is polluted resulting in serious consequences[3,4].
The basic physical and mechanical properties of the two kinds of soft soil are shown in table 1.
The main reasons of the monitoring result are caused by factors such as the embankment height, the burial location, and thickness of the soft soil layer.
The individual monitoring test results are related to the factors such as the specific engineering geological conditions and loading process.
The main reasons of the monitoring result are caused by factors such as the embankment height, the burial location, and thickness of the soft soil layer.

It is well known that the mechanical properties of most materials are influenced to some extent by strain rate.
The stress level on which the incident pulse is unloaded is independent of dashpot properties.
However, the stress level at which the reflected pulse starts is strongly dependent on the dashpot properties.
Compare with experiment: From above results, the stress level to which the incident pulse is unloaded and the stress level at which the reflected pulse starts are affected by actuator properties, pulley disk properties and the incident stress pulse parameters.
It seems difficult to find a simple relation to consider the effect of these factors.

Furthermore, BAp is an ionic crystal with a hexagonal lattice of the space group P63/m, and it has anisotropic mechanical and biochemical properties [3].
Therefore, it is important to identify other parameters that control the mechanical properties of bone.
This finding indicates that the bone shape was not remarkably affected on the bone shape by rhM-CSF administration in the normal mice [9].
This suggests that M-CSF is one of the most important factors for producing the preferential BAp orientation through normal bone remodeling related to stimulating osteoclast production.
In conclusion, M-CSF is one of the important factors controlling the preferential alignment of the BAp c-axis in the femur.

These properties are inherently related to its hexagonal lattice structure.
Gleeble Thermal-Mechanical Test.
Figure.1 shows the effect of preheat temperature and strain rate on the mechanical properties of AZ31 magnesium alloys..
These small cracks may affect the quasi-static strength and fatigue performance of the joints.
While cracking play a less significant role in static failure, the mechanical interlock becomes a dominant factor.

Forging can improve the mechanical properties of a material and can be classified as cold forging, warm forging, or hot forging.
Because of plastic deformation during the formation process, cold forging results in higher hardness than warm or hot forging; hardness affects the forgability and mechanical properties of the component.
A reasonable forging flow line is critical to obtaining high mechanical strength.
The level nominal-the-best SNR of each experimental factor was mapped onto an SNR factor response diagram, which is displayed in Fig. 10.
SNR factor response diagram.

There are various factors which will affect the pattern details of cracks and the crack propagation kinetics.
These factors are the composition of the desiccating material, temperature, humidity, layer thickness and field effect like drying rate, mechanical properties and substrate [4].
Basic Properties Test.
The kaolin clay properties summarised in Table 1.
Table 1 Kaolin clay properties.

These sensors gather data on factors affecting bridge structural integrity, such as vibrations, strain, and environmental conditions.
However, aging infrastructure, environmental factors, and increased traffic loads pose significant challenges to bridge safety and integrity.
Moisture Sensor Moisture sensor property sense the water in the surrounding giving to the data to Arduino board.
Vibration Sensor: Detects vibrations on the bridge caused by various factors such as traffic or external forces.
By integrating Arduino microcontrollers with various sensors, this system enables real-time data acquisition, analysis, and proactive identification of structural weaknesses and environmental factors affecting bridge health.

The measured data results show that: the nine storms environmental load affect capacity of drilling significantly, the different parts of the main member stress have the different degrees of influence by environmental load, the maximum can reach 50.8%.
In order to protect the safe operation of marine operations reduce risk, it is necessary in extreme operating conditions, that is, when the mast on a larger work load (suspended weight close to the allowable hook load), consideration of environmental factors on the derrick by the force of real-time monitoring[1,2].
Design height 48.7m, racking platform with high 25m, the maximum rated static hook load is 450 tons.井架从上到下分成14个小节，如图1所示： Derrick top to bottom into 14 small sections, as shown in Figure 1: The derrick steel with mechanical properties similar to the domestic 16Mn steel,井架结构杆件均采用梁单元模拟，井架共划分为420个单元，215个关键点。
Maximum hook load evenly to the derrick at the top of the four nodes along the Z direction were imposed-1125kN concentrated force, according to SY/T5025-1999 "specification for drilling and well servicing structures" Section 7.1.2 states that "the dynamic stress and wind caused by floating ship, when the wind load, dynamic load alone, or with the design dead load and live load combined, the Movement load of stress as ship floating increase in the allowable stress on the third one" Therefore, the maximum hook load multiplied by the load factor of 1.3.
Fig. 6 Measuring points 1 to 4 stress curve Fig. 7 Maximum Stress curve 井架主杆受力不均情况更为明显，井架主杆各节段最大应力值见表 6 ，各节段最大应力曲线如图 7 所示： The main member stress uniformity were more evident, the main member maximum stress value of each segment in Table 3, the largest segment of the stress curve shown in Figure 7: Table.3 Derrick maximum stress values [MPa] Measuring point Stress amplitude Measuring point Stress amplitude 1 117.9 19 50.4 8 49.4 22 67.1 10 84.9 25 64.5 15 76.4 31 67.1 Analyze in each segment derrick measuring point maximum stress curve is not difficult to find: nine storms environmental load significantly affect the capacity of derrick operation, which the measured points 22 have the greatest influence by environmental load, minimum stress -33MPa, the maximum stress-67.1MPa, the stress difference 34.1MPa, accounting for 50.8% of the maximum stress value.

Analytical and experimental procedures Materials By referring the mechanical properties of tested material from H.
Table 1 Material Properties Young`s modulus 70 GPa Yield strength 96 MPa R – value 0.8 Poisson`s rate 0.3 Work-hardening exponent (n) 0.26 Plastic coefficient (K) 179 MPa Ductile fracture criterion Based on various hypotheses, some criteria for ductile fracture have been proposed Oyane et al. [1] proposed a criterion allowing for the history of the hydrostatic stress affecting the occurrence of ductile fracture, and it has been widely applied in the field of sheet forming with high reliability [4, 5].
Fig. 2 a) Definition of factors b) experiment with fracture c) simulation result where I reach 1.0.
The number for each column is related to the level number for each factor.
In this study, only the individual effects of each factor on the FE simulation were investigated, without considering the interactions between each factor.

The physical properties, chemical properties of coal gangue and raw materials and compression rebound modulus of the coal gangue were studied in this paper.
Some physical properties and chemical properties of the coal gangue are shown in the Tab.1: Tab.1 The physical and chemical properties of gangue ignition loss [%] crushed value [%] water absorption [%] liquid limit[%] plastic limit [%] free expansion rate [%] 13.61 29.69 3.40 31.06 23.62 25 As table 1 shown, the ignition loss of the coal gangue and water absorption are relatively small; it is non-expansive soil according to the liquid limit and the free expansion rate is less than 40%;the crushed value is 29.96%, which is less than 30% , meeting the requirements of highway projects on the aggregate crushing value.
The coal gangue mixture adopt datum proportion, which let coal gangue: fly ash: lime powder：cement = 1: x1: x2: x3, namely fly ash, lime powder, cement relative to the quality of the Gangue content as the factors, and the 8 level ,8 level, 4 level is selected to make the mixed-level design respectively.
(During the curing period, the lime plays continuous excitation to the fly ash or coal gangue and the mechanical property of the coal gangue mixture is increasing.
Conclusions (1)Through the laboratory experiments, the basic physical properties and chemical properties of the coal gangue are studied.