Do you know what are the necessary jingles for construction workers? Below, I will share with you the essential jingles of construction workers, hoping to help you!

Subgrade construction 1. Compaction test of subgrade filler. Choose good materials for embankment filling, and make tests before filling; The samples shall be representative and the testing frequency shall not be less than.

2. Subgrade drainage Subgrade construction, drainage first; Put an end to flooding and ensure quality.

3. Before subgrade filling, the rolled embankment construction should be released, and the topsoil should be removed to the sideline; Hole filling, leveling, compaction, embankment stability, not sinking.

4. Selection of subgrade filler The subgrade filler should be selected, and the stable soil quality should be carefully found; Soil is not suitable for improvement, and strength and particle size are more important.

5. Embankment filling steps overlap each other, new and old interfaces should be connected, and steps should be dug on the slope; Filling layer by layer, overlapping construction layers.

6. Layered thickness of embankment filling embankment filling should be carried out in layers, and the thickness of filling layer is moderate; Thirty centimeters as a reference, and then adjust the process test.

7. Filling width of embankment The width of embankment should meet the requirement of ensuring edge compaction; There are many diseases caused by the lack of filling and the width of the side, so the survey and lofting should be detailed.

8. Embankments filled with different soils are different, and the layers are divided according to the soil quality; On the basis of strength and water permeability, the subgrade is stable and diseases are prevented.

9. Backfill of bridge and culvert abutment is selected, and the thickness is fully compacted; Backfill range should not be less, and the back of abutment will not trip.

10. Choose compaction machinery, commonly used static pressure machinery; Sand vibration compaction efficiency is high, and sheep feet are good at rolling clay.

1 1. When the compaction water content is the best, the mechanical compaction work is less; Turning over the sun, sprinkling water to adjust the water content, and mixing ash when it is too wet are all good methods.

12. Compaction of fill embankment is light before heavy, stable before vibration; From high to low, wheel tracks overlap.

13. Check the compactness of embankment with rock filling, and classify the compactness of filled soil; Area 909395, compaction ensures stability.

14. Compaction test of soil embankment Compaction of embankment is very important, and compaction test is indispensable; Double indexes of deflection measurement and compaction deflection of soil subgrade.

15. Compaction of high fill embankment shall consider self-weight and test foundation bearing capacity; According to the regulations, walking with a rammer is an expedient measure.

16. The filler of rock-filled embankment is required to meet the strength and particle size; Fill the upper part of the road bed and test the bearing capacity with soft stone.

17. The layered thickness of rockfill embankment and paving rockfill should be horizontal and stable; Mechanical paving should be assisted by manpower, and manual paving should be smooth.

18. Rock-filled embankment is compacted and stabilized, and heavy machinery operation is carried out; Lightweight machinery is thinned, and measured settlement pressure is tested.

19. Layered thickness of earth-rock embankment. The particle size of the stone in the earth-rock mixed filling layer is horizontally divided, and the thickness is moderate. The thickness of 40cm is suitable for limiting the particle size, and the hard and soft stone particles are different.

20. The compaction degree of earth-rock embankment is different, depending on the quantity and particle size of stone; Many pieces belong to rock filling, and few pieces belong to earth filling.

2 1. Drainage should be done first in the subgrade construction section of paddy field section, and the soft foundation section should be constructed as early as possible; Preparing soil, mixing ash, controlling boiling and filling thin and pressing quickly are the key points.

22. The expansive soil subgrade construction preparation soil mixed with ash for sand, mixing evenly is very important; Mechanical stirring is a bit excessive, and thin filling and quick pressing are the key.

23. The cement powder injection pile construction ratio test should be done first, and the pile test work must be done; It is also important to check the elevation ash frequently and re-mix the pile top.

24. Fly ash embankment paving compaction control strictly layered paving control, paving pressure real-time compaction; Adjust the optimum moisture content and control the rolling sequence; It is forbidden to turn around and brake, and the maintenance and drainage are endless.

25. The stability of rock blasting slope is the most important, and small guns should be used in design; Two rows of holes near the inclined plane are more reliable to reduce looseness.

26. The blasting design of deep excavation of rock cutting on one side slope should be combined with the actual situation, giving priority to slope protection; Accelerate the progress of mechanized construction and comprehensively arrange the form of blastholes.

Construction of base and subbase. The composition design purpose of stabilized soil mixture is clear and the test ratio is optimized; All the data have a basis and guarantee the guidance of construction.

28. The test of stabilized soil mixture should be timely, and the problems should be replaced in time; Have the basis of applying standards and strictly control the quality.

29. Stabilized soil mixture specimen maintenance should master specimen maintenance, be familiar with methods and strictly operate; According to the true and accurate data, guide the construction quality.

30. Construction of stabilized soil Stabilized soil should be carefully constructed and strictly required; The ingredients must be stirred evenly, and the right amount of water should be compacted and stabilized.

3 1. The survey and setting-out in the construction of stable soil layer is essential, and the standard sample depends on it; Need to retest and verify to ensure that the accuracy is not wrong.

32. Detection of bearing stratum under stabilized soil. The lower bearing layer shall meet the appearance requirements. Internal quality should be tested, and construction can only be started after all products are qualified.

33. Stabilized soil wet mixing sprinkler should be controlled slowly, neither too much nor too little; Don't be too dry when the water volume is slightly larger, it will be more uniform and easy to compact.

34. Stabilize the dirt road mixing method and turn it over at the beginning to prevent the rubber from sinking; Remove the interlayer and stir evenly, and then stir deeply for one centimeter.

35. Concentrated mixing of stabilized soil improves mechanical properties; Aggregate requirements should be strict, and the mixing quality can be guaranteed.

36. The stabilized soil transportation road is flat and without pits, and the transportation must be smooth; Shortening time, arriving early and timely delivery are the most important.

37. Stabilized soil shall be paved with grader, the mixture shall be paved evenly, and the coarse and fine particles shall not be nested; Looking for new materials to fill the potholes, leveling measures can be controlled.

38. Road mixing method is the forerunner of plastic compaction and leveling, and plastic technology is indispensable; Skillfully operate according to regulations to ensure mechanical support.

39. The rolling process should be kept in mind, and the mechanical supporting compaction is good; Strict control of quality standards, compactness and smoothness are the most important.

40. Treatment of vertical and horizontal summer-planting in road mixing construction: Proper treatment of vertical and horizontal summer-planting and smooth height difference; Mixing, rolling and winding are tight, leaving no future trouble for a long time.

4 1. Proper maintenance of stabilized soil is essential, and the effect of covering normal temperature is good; Strength growth is not damaged, and seven days old should be guaranteed.

Construction of asphalt concrete pavement. The main quality requirements of coarse and fine aggregates for asphalt pavement should be kept in mind: apparent density is greater than 2.5, crushing is less than 128, abrasion is less than 130, upper flatness limit is 150, polishing must be greater than 42, and sand equivalent of fine aggregate is 60%.

43. The oil in the prime coat and prime coat of asphalt pavement should be infiltrated, and the base course should be watered when it is slightly dry, so as to achieve good index quality without surface film flowing; The adhesive layer is connected with the lower layer, and the film should be impermeable. It is most important to grasp the dosage between the upper and lower floors.

44. Asphalt mixture ratio design, target making and verification, good oil gradation and good mixing are three stages.

45. The hot plate asphalt mixture Marshall specimen compaction molding specimen size strictly grasp, drop hammer height should be accurate; Verify the quantity of materials and the compaction temperature meets the requirements.

46. Marshall specimen standard curing specimen temperature control, time control is not overrun; Rapid testing and accurate operation are the keys to guide construction.

47. Hot mix asphalt mixing equipment and mixing equipment should be advanced, fully functional and coordinated; The stirring time is well controlled and the temperature is suitable for uniform stirring.

48. The heating temperature of the appearance quality of the mixed asphalt mixture should be strictly controlled, and the measurement of material preparation should be accurate; Mix evenly without ash, and the color is bright without segregation.

49. Paving hot mix asphalt mixture surface is the requirement for the lower bearing layer. The road width specification stipulates that the lower layer is flat and not loose, and it can only be paved if it is qualified. This is the key to quality.

50. Paving speed Paving speed should be slow, paving should be continuous and uniform, paving speed and mixing amount should be fixed, and paving road surface should be smooth.

5 1. The initial rolling pressure of hot-mix asphalt mixture is closely followed by the paver, and the control principle is not to crack or move, and the front end is static and stepped, so as to eliminate the oblique pressure and ensure the smoothness; After the complex pressure follows the initial pressure, the tire vibrates synchronously, control the compression speed and times, and check the flatness with a ruler; The final pressure is static pressure with high temperature limit and good quality. Two times static pressure eliminates wheel tracks, ranking first evenly and closely.

52. Rolling rules should be started slowly, and it is not advisable to turn around halfway; Stop vibrating and start vibrating again on the return trip to avoid passages and cracks.

53. The longitudinal and transverse joints of hot mix asphalt pavement should be staggered, and rolled after the longitudinal hot joint. The hot material pressure of cold joint is 15cm, and the transverse joint is rolled horizontally. After the wheel width is completed, it is rolled longitudinally, and the seamless trace is measured while pressing.

54. The construction control of modified asphalt mixture is very important to prevent the segregation of modified asphalt mixture. Pay attention to temperature control and rolling, and the pavement construction quality is good.

55. The design step of SMA asphalt mastic mixture is to select materials according to regulations, and the technical parameters reach the index; The asphalt is missed and readjusted if it does not meet the requirements; Whether peeling resistance is needed can only be known after water stability test.

56. The key to SMA construction control is to pay attention to material gradation, control the mix design, improve equipment efficiency and control the temperature. Paving and rolling according to regulations can improve the quality of pavement.

Construction of cement concrete pavement. The requirements of cement concrete pavement for cement should be distinguished from the characteristics of cement, and should be distinguished along the road when choosing. The temperature of bulk cement should be controlled to ensure the quality.

58. The requirement of cement pavement for coarse aggregate is solid and wear-resistant coarse aggregate, so it is particularly important to meet the grading. Slipform construction is strict, and the material selection standard should be remembered.

59. The requirement of cement pavement for fine aggregate is to use dense fine aggregate to fill it. Keep in mind the technical requirements, pass the good material selection test, and strictly inspect the incoming materials.

60. The design of concrete mixture ratio of cement pavement has three steps: experience, calculation, preliminary mixture ratio, trial mixing, adjustment and test to determine the construction mixture ratio.

6 1. The mix design of steel fiber reinforced concrete has two indexes, compression and tension are indispensable; Reasonable determination of sand content and trial mix ratio; Try to mix the fresh mixture and adjust the application ratio.

62. The concrete mixture has a large amount of paving and mixing, and the large and medium-sized output is two or three; The ingredients must be measured accurately and mixed evenly in sequence; Admixtures should be added to the solution, and the solution should be uniform without precipitation; Three points should be paid attention to in steel fiber coagulation to prevent agglomeration. One is to pay attention to sequential feeding, and the other is to delay mixing.

63. The choice of cement concrete mixture transport vehicles is stipulated, and the choice of transport vehicles should be carried out; Anti-segregation during loading and unloading, waterproof and anti-evaporation; When reversing and unloading, you should obey the instructions, and never hit the line or die.

64. Use a three-roller machine to spread and compact the mixture. The operation of surface renovation is to control the loose height of cloth evenly and control the speed for vibration compaction; The insertion position of the pull rod is accurate, and the 20-30m section is flat; After finishing, the mortar shall be 4 mm, and the mortar shall be collected, leveled and sealed.

65. The paving technology of steel fiber reinforced concrete pavement requires that the steel fiber is evenly distributed and the loose paving thickness is increased to two centimeters; Without inserting surface vibration, compact construction will not be overtime; The anti-skid structure is hard cut, and the panel seam cutting follows the routine.

66. It is important to maintain health of cement concrete pavement, and it is important to keep in mind the key points. It is most important to control the time by spraying film. The quality of maintenance is spraying, and careful operation is high quality.

67. In the summer construction of cement concrete pavement, sampling frequency is essential to ensure the workability of concrete, temperature difference control is the key, and the quality of heat preservation and crack prevention is high.

68. Make rain-proof facilities for cement concrete pavement construction in rainy season in advance, and unify the spirit of command and dispatch; Design requirements cannot be changed, and hidden dangers should be adjusted in time.

69. The shrinkage joint of cement concrete pavement evaporates quickly in spring and autumn, and symptomatic control is the key; Spray liquid to prevent evaporation, and stop working when the wind speed exceeds the threshold.

70. RCC has 12 construction procedures, which should be strictly implemented. Mechanical support is indispensable to ensure the construction quality.

7 1. Carefully prepare the paving operation on the concrete surface, paving at a uniform and continuous speed, and at the same time, set up tie rods to supply ultra-high materials at corners.

72. The compaction process of RCC pavement formation is divided into several sections, with 30-40 meters as a section; The initial pressure is static pressure, wheel pressure is superimposed, and the second pressure is repeated; Variable pressure vibration for two to six times to reach the required final pressure; Eliminate microcracks and wheel tracks, and stop pressing after inspection.

73. The roller compacted concrete surface anti-slide structure construction anti-slide production spray slow setting, surface covering and other slow setting, and then water wet surface, brush structure except pulp cleaning.

74. The longitudinal joint construction of RCC pavement is completely cut off, and the transverse joint construction has many forms. Only by doing it carefully according to the requirements can the quality of the joint be guaranteed.

Construction of bridges and culverts. The storage and inspection of incoming steel bars are easy to identify, and antirust is the key. Each batch must be checked and accepted, and the performance must be checked, and the mixture should be cleaned in time.

76. Steel blanking processing to check the specifications, length, quantity, straightening, cleaning, rust removal; There are principles in ingredient management, batch processing should be bent and operation methods should be correct.

77. Steel welding flash welding saves materials, grasps the operation points, and the preparation work is the most important. Arc welding method is the simplest, and covered electrode type should be selected.

78. The focus of steel binding and skeleton assembly construction is to arrange joints according to regulations. Careful inspection is the most important, the skeleton assembly should be stable, and the solder joint order should be remembered.

79. The protective layer thickness of reinforcement must have a protective layer, and there are differences in various structures. In order to ensure the durability of the structure, the thickness of the protective layer must be sufficient.

80. Template materials should be selected, smoothness is the most important, dimensions should be accurate, and joints should be tight.

8 1. Template installation Template installation should be firm, vertical and horizontal stability is the most important, support templates should be separated, and elevation dimensions should be well controlled.

82. The positioning of the mandrel in the hollow member The mandrel of the capsule should be checked frequently to prevent pollution, and the positioning should be controlled to prevent floating, and balanced pouring should be arranged.

83. Dismantle the formwork. Dismantle the formwork carefully, and take strength control as the principle. Lack of experience is not foolhardy, but obeying the rules is the best policy.

84. Cast-in-situ concrete support is used for preloading soft foundation, and settlement should be paid attention to to to ensure safety and quality. Loading preloading is the way.

85. The measurement of cement concrete mixing ingredients must be accurate, the net mixing time is essential, performance testing is essential, and the outlet temperature is well controlled.

86. Cement concrete transportation can meet the needs, and pouring cannot be interrupted. Strictly control the secondary mixing to keep the performance unchanged.

87. There are many key points in cement concrete pouring, and preparations should be made. The pouring thickness should be low first and then high, with high vibrating compaction quality, consistent color and less laitance.

88. It is essential to strengthen the maintenance of cement concrete, which is often used for covering and sprinkling water. To ensure seven days, to ensure that the maintenance is fully powerful.

89. The quality inspection of cement concrete should be carried out seriously, and the method of value selection should be distinguished. The evaluation method should conform to the specifications and follow the relevant regulations.

90. Pumping cement concrete construction pumping equipment is better, all kinds of parameters should be selected, and the pouring process should be carefully observed, so that the molding quality is high at one time.

9 1. Cement concrete construction in winter should be frost-proof, related materials should be heated, maintenance methods should be selected, and temperature control is fundamental.

92. The location of the prestressed steel pipe is hungry, and it is essential to locate the steel bar. The steel beam needs protection after installation, and careful construction is the key.

93. The prestressed tensioning operation should be prepared, the axes should be consistent, double control should be adopted, the anchorage should be stable, and records should be filled in to prevent accidents.

94. The materials used in prestressed duct grouting should be qualified, and duct cleaning is essential. All indexes should be tested, and grouting fullness is the most important.

95. The underwater pouring of underwater concrete should be smooth and the preparation work should be sufficient. The first batch of pouring is the key, and other requirements should not be forgotten.

96. How to prevent the floating skeleton of the reinforcing cage can be prevented, the pouring performance is better, the steel bar speed is slower, and the steel bar extension is the most effective.

97. Backfilling of abutment should be paid attention to. Backfilling materials should be selected to meet the requirements step by step, so as to avoid bumping after construction.

98. To prevent the cast-in-place beam from cracking due to uneven settlement, the retarding effect is the most obvious, the support preloading is the way, and the pouring order should not be forgotten.

99. Unloading is in progress. Dismantling the beam reflects the symmetry, uniformity and order of the pouring support. Pass first. Don't make mistakes. Unloading in stages is the key, and unloading from the middle to the side is the principle.

100. It is necessary to measure the construction height of bridge deck pavement and ensure the design thickness. All indexes are strictly controlled, and the surface smoothness is the most important.

10 1. Bearing installation specifications and quality should be qualified, the center position should be accurate, the contact surface should be seamless, and the vertical and horizontal directions should be horizontal.

102. The stone required for mortar masonry works meets the requirements, and the masonry mortar should be full.

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