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Syncline, the two wings of the Rock Formation coal seam is located within the region, geological structure to the fault, which F8 #, F12 #, F26 # boundary faults in the region, the tunnel through the rock have sandy shale, sandstone, sandstone, grained sandstones, etc..
Permanent support does not take up cycle time, effective use of the limited space roadway, can increase tunneling speed of 30 ~ 40%; save a large number of temporary support material, reduce costs, improve efficiency, the construction quality and safety have reliable guarantee.

Introduction Hydro-junction of Hada mountain is located in the downstream of the second Songhua River in Songyuan of Jilin province, and 20km apart from Songyuan, which is the largest hydraulic project, and a main water source project increasing 10 billion commodity grain in Jilin province.
-30.0 -25.0 -20.0 -15.0 -10.0 -5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 11-20 12-20 1-19 2-18 3-20 4-19 0cm 5cm 20cm 40cm 80cm 120cm 160cm 200cm Date Fig3 Ground temperature hydrograph of 6cm insulation slope lower section of test section in 2km test field Fig2 Ground temperature hydrograph of test comparison section in 2km test field Table 2 Geological data of test section Testing Program Pile Number Slope Supporting Ways length m Location Facing material Dimensions length ×width ×thickness m impervious material Thickness of heat preservation cm material Dimensions width ×height m Shady Slope Sunny Slope 1# 2+615～2+640 concrete precast 0.3×0.3×0.13 Gabion Mesh Cage 10 ● ● 2# 2+640～2+665 cast-in-situ concrete 2×2×0.1 one fabric one membrane 6 Base groove of lain concrete 0.6×0.8 25 ● 3# 2+665～2+690 fiber reinforced concrete 2×2×0.1 one fabric one membrane 5 Base groove of lain concrete 0.6×0.8 25 ● 4.2 Thermometric

In the cross-section, mainly two different phases were recognised, which appear light grey and white due to the atomic number contrast of backscattered electrons (Fig. 5a).
where d is the average crystalline size, K is a grain shape dependent constant (0.9), λ is the wavelength of the incident beam, θ is a Bragg reflection angle and β is the full width at halfmaximum [28].

We keep N constant, then all the supercells of different-type metals have the same number of matrix atoms.
Olson, First principles determination of the effects of phosphorus and boron on iron grain boundary cohesion, Science 265 (1994) 376-380

This defect benefits the oxide’s nucleation in the beginning of oxidation, by diminishing the crystal grain of oxide film and enhancing the crystal boundary density.
The shot blasting process was conducted under 0.65MPa, with shots input rate, cycle number and spray gun moving speed matching with each other.

As the channel gradient descents in the middle and lower reaches of the basin, more and more fine-grained material dominates material composition.
The main ditch did not flow into a clear increase duo to the downstream branch gully debris flow, which showed that the solid material occurred a large number of deposition in the main channel, and the two data sets about velocity and discharge can be helpful to understood the rich deposition in main trench.

With respect to the average particle sizes and specific surface areas, which are estimated from full width at half maximum (FWHM) according to Debye–Scherrer formula[9] as follows: (1) Where d is the average particle size ( Å), λ the wave length of X-ray (1.5406 Å), θ the angle, at which the peak maximum occurs, β1/2 the width (in radians) of the diffraction peak at a half height, Ultimately, the average mean grain size of Pt-SnO2/C catalyst was near by 4.5nm.With the help of surface area analyzer, The active surface area was up 108.405mg•cm-2.
Additionally, surface instability of nanoparticles, due to surface recrystallization, surface metal segregation, particle agglomeration, etc., decreases slowly the number of active sites and are responsible for the continuous and slow current–time decay in the long operation time.

A lower ended temperature has a greater driving force of crystallization, which can accelerate the crystal precipitation and obtain fine grain.
According to the crystal theory, a fast cooling rate will make the number of crystal nucleus surge.

(5) The particle tracer should be good grain size, roundness, sorting characteristics and recognition
When there is tracer breakthrough, increase the number of sampling, which is 1-2 samples every day. (2) There may be the permeability belt that microcracks development degree is different in the reservoir.

R1 had the largest number of granular sludge, the largest particles, and also showing good effect of immobilization; while R4 only had small quantity of granular sludge, and R3 has basically no immobilization effect.
Compared with the support material size of 0.15-0.20 mm; the grain size larger than 0.90mm was 41.5% in R1 reactor, and 28.8% in R2 reactor, while R4 only had small quantity of granular sludge, and R3 had basically no immobilization effect.