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If the aquifer is strengthened by grouting at the moment of t1, a large number of grout injected make the overlying strata upward movement or produce upward trend.
In fact, because grouting reinforcement, part of the aquifer to filling close-grained, the slope of the shaft lining additional force increasing over time changes (curve 4).Therefore, the grouting reinforcement has double effects, which are inhibition aquifer additional force (t moment for d) and slow release additional force (t moment for h).
The topsoil around shaft grouting treatment period, the monitoring system obtained large number of strain data, and effectively guided the grouting safety construction.

Mature commercial software contains its own database, which is from a large number of foreign basic experimental data.
The arrangement and serial number of residual stress measuring points are shown in Fig.2.
(b) Inner surface of 1A（500X） (d) Inner surface of 1B（500X） (e) Outer surface of 1C（500X） (f) Inner surface of 1C（500X） Fig.7 Inner and outer surface metallographic examination of base metal (a) Outer surface of 1A（500X） (c) Outer surface of 1B（500X） Through the metallographic microscope, the microstructure of inner and outer is in line with that of middle part on the whole, the phenomenon that H2S corrodes grain boundary does not appear, the micro-crack is not found, and corrosive pitting appears on some areas. 3.4.4 Microstructure of weld edge Microstructure of weld edge is shown in Fi.8. intergranular corrosion, transgranular corrosion and micro-crack are not found on the inner and outer surface of weld edge.

Hashim et al. [9] explained in his work that processing variables such as a number of blades on the impeller, stirring speed, shape and size of the impeller, holding temperature and impeller position are the significant factors to be considered while stir cast these parameters of casting has a major influence on various properties.
Thus, the grains grow outward from the reinforcement and remaining matrix liquid solidifies over the particles.
Fig. 5 Hardness number as a function of material composition Fig. 6 Engineering stress v/s strain for tensile samples Fig. 7 Scanning electron microscopic images of fractured tensile sample (a) ZA27 as-cast alloy (b) ZA27 5% SiC (c) ZA27 10% SiC (d) ZA27 5% Al2O3 (e) ZA27 10% Al2O3 Due to the difference in thermal expansion coefficient, during the cooling process dislocations are introduced by the ceramic particles which are the reason for improvement achieved in composite materials [16].

The θ(Al2Cu) phase distributes in the grain boundary and interdendritic region independently (as shown in Fig. 1), because α(Al) of eutectic reaction can grow attached to primary α(Al).
There are still a certain number of θ(Al2Cu) phases remained with the extension of time from 24 to 48h at 510℃ for alloy 3, which indicates that the Cu content is excess and it is difficult to dissolve the θ(Al2Cu) phase completely.
The number of θ(Al2Cu) phase decreases slightly with the increase of homogenization time from 24 to 48h, so it is recommended that the suitable homogenization treatment is 490℃/24 h + 510℃/48 h for Alloy 3.

A number of ZrO2TiO2 binary oxides prepared by the sol-gel technique have been reported [8-11].
The presence of oxygen vacancies may enhance the adsorption of water at the grain boundaries, in the form of VO-OH , which in turn give rise to mobile protons.
The consequence is an increase in the number of charge carriers [17].

With attapulgite clay addition, it clung to the hydrolyzate and served as core of flocculation, the flocs dispersed into water evenly; moreover, attapulgite clay as coagulant aid could augment granule number and increase its probability of collision, and came to better coagulation effects.
Table 1 Combination of PAC and attapulgite clay Test number 1 2 3 4 5 6 7 8 9 PAC dosage(mg/L) 15 15 15 20 20 20 25 25 25 Attapulgite clay dosage (mg/L) 150 200 250 150 200 250 150 200 250 Fig.2-a Combination mode on TOC removal Fig.2-b Combination mode on NH3-N removal 3.3 Influence of hydraulic conditions 3.3.1 Determination of PAC stirring time Took 6 part raw water sample of 1L volume, put 15mg PAC in, stirred rapidly at 300 r/min for 2, 4, 6, 8, 10, 12 min, respectively, then put 200 mg attapulgite clay in.
From the SEM pictures, it was observed that, flocs after single attapulgite clay was was in powder form and loose; and flocs after single PAC was fluffy, and plane schistose on the micro level; While flocs after PAC-attapulgite clay combination was compact and dense, smaller grain size, and spatial flocculent on the micro level.

The MCF slurry is produced by mixing water-based MF magnetic fluid containing magnetite Fe4O3 particle, carbonyl iron powder, a-cellulose fiber and abrasive grains, hence reacting to an applied magnetic field [6].
Experimental Details At first, in order to clarify how the MCF wheel construction including the number of magnets employed and the distribution of magnetic poles affect the polishing characteristics, five types of MCF wheel a to e with different constructions were prepared as shown in Fig. 3 by employing neodymium permanent magnets with dimension of f39mm in outer diameter ´ f19mm in inner diameter ´ t7mm in width Niroku Co., Ltd.
Meanwhile, it is evident that even the number of magnet installed is the same, the highest MRR was obtained with the MCF wheel in NS-NS distribution without spacer.

Table 1 The measure of wheel substrate fabrication error Wheel substrate fabrication Verticality [µm] Parallelism [µm] End-face jumping [µm] Bore circularity [µm] Run out of step face [µm] Run out [µm] wheel substrate number 1 2 1 2 1 2 1 2 1 2 1 2 after finish turning ≤1 ≤1 2 6 10 25 3 5 4 5 10 7 after wire cut of distressing holes ≤1 ≤1 10 8 13 20 4 8 ≤ 5 ≤ 5 ≤ 5 ≤ 5 after baking and step face conditioning ≤1 ≤1 6 4 10 20 5 9 ≤ 5 ≤ 5 ≤ 5 ≤ 5 after brazing without filler ≤1 ≤1 5 10 10 16 5 6 6 7 5 5 after brazing with filler ≤1 ≤1 18 14 20 16 9 11 ≤ 10 ≤ 10 - - (a) orderly setting of diamond abrasive (b) design of wheel substrate (c) appearance of the product of wheel substrate Fig. 1 The designing and fabricating of wheel substrate 1.6Precision touch truing Touch dressing Procedure.
His experiment indicates that touch dressing will increase the abrasive grain number of grinding participation and can greatly improve the workpiece finish.

Reservoir rocks consist primarily of fine-medium grained feldspar-quartz sandstone or lithic quartz-sandstone.
Table 1 Water sensitivity test evaluation of Yuyang formation in the fault block Sensitivity evaluation Well number Horizon Permeability ×10-3μm2 Kf 10-3μm2 Kw 10-3μm2 Kw/Kf Conclusions Simulate freshwater water sensitivity ES8 k2y4 2.54 0.99 0.99 1 Weak water sensitivity 2.11 0.96 1.03 1.07 Weak water sensitivity ES10 k2y3 2.12 0.23 0.06 0.26 Strong water sensitivity 0.333 0.0102 0.0038 0.373 Medium to high water sensitivity 0.05 0.0044 0.0018 0.409 Medium to high water sensitivity 0.078 0.039 0.0014 0.359 Medium to high water sensitivity The results of water sensitivity test and mineral analysis show that a compound fault block reservoir is rich in sensitive minerals: illite, shale and iron shale, calcite, dolomite, clay minerals of all types.
Table 2 Velocity experiment assessment of Yuyang formation in the fault block Sensitivity evaluation Well number Horizon Permeability ×10-3μm2 Kmax 10-3μm2 Kmin 10-3μm2 dK Conclusions Simulate formation water velocity sensitivity ES8 k2y4 3.57 2.25 1.97 0.124 Weak velocity sensitivity 3.33 2.24 1.82 0.1872 Weak velocity sensitivity ES10 k2y3 1.95 0.45 0.41 0.089 Weak velocity sensitivity 0.088 0.0053 0.027 0.49 Medium velocity sensitivity 0.052 0.0024 0.0011 0.542 Medium velocity sensitivity 0.121 0.0076 0.0039 0.486 Medium velocity sensitivity The test data in Table 2 indicate that although the reservoirs in oilfield contain considerable kaolinite which is sensitive to velocity, its absolute content is low and most of the kaolinite fills in intergranular pore, generally being weak-medium velocity sensitive.

It is also evident from the micrographs that a number of parallel and continuous wear grooves exist on the worn surface of the Cu-Ag-Cr alloy in the direction of the motion and the appearance of the worn surface is characteristic of an abrasive wear mechanism.
In addition, a large number of small spherical droplets are observed at the bottom of the eroded pits on the worn surface.
Fig. 5 shows the fine precipitate particles dispersed within the grains in the Cu matrix, and the precipitates are fully coherent with the Cu matrix and having a size of 6~7 nm.