煤矿地质测量操作规程（Code of practice for coal mine geological survey）.docVIP

煤矿地质测量操作规程（Code of practice for coal mine geological survey） Code of practice for coal mine survey workers (1. Theodolite observation) 1, in the handling, measurement, instruments and tools must be properly protected, shall not bump; observation, instrument erection after the station (and mirror station) from the station are not allowed; move, must remove the instrument into the instrument box. If the station is short distance, you can not remove the instrument, but you must embrace the instrument and hold the foot with your hand. Do not jump or run while marching. 2, the measurement of field observation should be selected as a good and clear images of time. Observations should not be carried out at sunrise, sunset and around noon, if the image is blurred or pulsating. Trigonometric leveling also requires a relatively stable time observation of atmospheric refraction. In 3, high standard construction, and build up observation objects, operating personnel should wear safety belt. Instruments should be taken up and down, effective instruments, boxes and other equipment should be placed firmly, to prevent falling, to ensure that the instrument and personal safety. 4, when observing, according to the following requirements: (1) instrument rotate smoothly, with vertical wire target sighting telescope, should be placed near the target level according to the observation sequence and wire; observation of other targets. Using the micro spiral or spiral micrometer alignment allowed the goal line, the final rotation should be precession. (2) every time a goal, not too tight horizontal and vertical screw, micro screw should try to use the middle part. (3) observation process, sighting level bubble off center shall not exceed the standard, close to a grid, should be measured between re setting instrument. (4) when the telescope rotation than the observed target, must rotate again after a week a, not the reverse rotation. (a) surface triangulation and traverse survey precision sh