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1、西交路基路面工程在线作业（West to pay subgrade and pavement engineering online homework）West to pay subgrade and pavement engineering online homeworkTotal score: 100 test time: -Radio examinationA multiple-choice questionJudgment questionRadio examination questions (25 questions, 50 points)1., the classification
2、 of asphalt mixture stone belongs to coarse grained asphalt mixture index is ()A. composition structureB. mineral aggregate gradationMaximum particle size of C. oreD. mineral aggregate minimum particle sizeFull marks: 22. CBR is an indicator of subgrade and pavement materialsA. stiffnessB. durabilit
3、yC. carrying capacityD. roughnessFull marks: 23. belong to the pavement structure performance requirements is ()A. strengthB. stiffnessC. durabilityD. flatnessFull marks: 24. about the static effect of vehicle on road surface, the following statement is incorrectA. vertical static depends on wheel w
4、eight, wheel pressure, and tire propertiesB. contact pressure distribution is evenThe contact area of C. is approximately ellipseD. design is considered as single or double circle drawing, called equivalent circleFull marks: 25., the following statement is not true about the dynamic effects of vehic
5、le on road surfaceA. vehicle; dynamic load; size; Cheng Zhengtai distributionThe coefficient of variation of B. dynamic load is related to vehicle speed, flatness and vehicle damping performanceThe loading time of C. pavement is shortThe dynamic load factor is not considered in the design of D. flex
6、ible pavementFull marks: 26. the maximum slab length of cement concrete pavement shall be no more than (m) metersA. 4.5B. 5C. 6D. 8Full marks: 27. cement stabilized base, the main technical requirements of cement is ()A. has a longer final setting timeB. has higher strength levelsC. has higher compr
7、essive strengthD. has higher flexural strengthFull marks: 28. fill height is less than how many meters, be called low embankment ()A. 1 to 1.5 metersB. 23 metersC. 45 metersD. 58 metersFull marks: 29., the following content does not belong to the concept of SubgradeThe A. is dug into the ground acco
8、rding to line shape to form a certain section shapeB. bears vehicle loads against environmental factorsC. provides good driving conditionsD. earth rock structureFull marks: 210. the standard axle load model considered in the code of highway pavement design is () and the axle load is () KNA. single a
9、xle single wheel, 100B. single axle double wheel, 100C. single axle single wheel, 80D. single axle double wheel, 80Full marks: 211. when calculating the load stress of cement concrete pavement, the comprehensive influence coefficient is consideredA. dynamic loadB. overloadC. bias loadingD. fatigueFu
10、ll marks: 212. the larger the water content is, the more suitable compacting machine isA. vibratory rollerB. small vibratory rammerC. convex block vibratory rollerD. tire rollerFull marks: 213., the asphalt mixture composed of continuously graded mineral aggregate is ()A. dense suspension structureB
11、. skeleton void structureC. compact skeleton structureD. continuous grading structureFull marks: 214., the specific method of Highway Natural Zoning in our country is divided into (first) District, (two) district and (sub) district.A. 7, 19, 33B. 7, 33, 19C. 7, 19, 52D. 7, 33, 52Full marks: 215. it
12、is not necessary to consider the value of the accumulated equivalent shaft during the service life of Asphalt PavementA. service lifeB. road levelC. traffic growth rateD. Lane factorFull marks: 216. when calculating the stability of immersion subgrade, the change of the stress system is not included
13、A. C, for reducing immersionB. partially flooded subgrade soil is subjected to water buoyancy actionC. produces osmotic water pressureD. load equivalent height increasedFull marks: 217., in order to ensure the good performance of the pavement, the requirements of the road () smooth () smoothA., yes,
14、 againB. should and shouldC. should and should notD. should not, and should notFull marks: 218., accustomed to become the two lime soil grassroots, is ()A. cement ash stabilized classB. stabilized lime mud classC. cement lime stabilized classD. lime industrial waste stabilization classFull marks: 21
15、9. the content of the actual service capacity rating process does not involve the followingA. scoring groupB. uses visual subjective assessmentC. 5 point scoringD. is calculated according to roughness, rutting depth, damage and repair area ratioFull marks: 220. when calculating the force system of a submerge
