(建筑工程)第1章3（Chapter 1, 3）.doc

(建筑工程)第1章3（Chapter 1, 3） 2 a312010 construction survey 2A312011 is familiar with the content and methods of construction measurement Knowledge point 1: the construction measure main work and method The construction survey mainly works Construction of the test Volume method The set of known lengths The set of known angles Measurement of the position of the plane in the detail of the building The location of the height of the building and the setting of the oblique line Distance measurement: according to the requirement of precision, it can be divided into ordinary amount Precision is two ways. Angle measurement: using the transit Measurement of the plane position of the detail point of the building: it can be straight Angle coordinate method, polar coordinate method, Angle forward intersection method and distance Intersection method implementation Measurement of the height of a building: it can be straight through a water level or steel ruler Take measurement finish The typical questions: A point is 36.05 m, the point is point A point of view point, point B is the forward view, level measure, the forward view reading is 1.12 m, and then the reading is 1.22 m, The height of point B is () m. A 35.15 B 35.95 C 36.15 D 36.95 Answer: C B: the height of B is A point higher + the reading of the view point is 36.05 + 1.22-1.12 = 36.15. The function and use of the measuring instrument 1 page transit level Total station Composition: the normal, horizontal, and base parts Function: the main function is to measure the horizontal Angle between two directions. Second, it also measures vertical angles; Using a leveling ruler, use the horizon Measuring principle, it can also measure the horizontal and high difference between two points. Composition: the three parts of the telescope, the level and the base Function: the main function is to measure the high difference between two points. It cannot be directly The elevation of the fixed point, but can be pushed by the known elevation o