Application And Research Of Wave Test Technique About Grouting Quality In Mined-out Area

With a population of Urumqi City sharp increase in the national economy's sustained and rapid development, to accelerate the process of urbanization and the continuous improvement of people's living standards, the increasingly tense city construction sites, based on the needs of planning and construction of the coalfield in the urban area mined-out area of new building lots To resolve the tense land of contradictions. Gob projects in Urumqi City, with a direct bearing on the quality of the proposed upper part of the structural safety of buildings, the mined-out area with quality is very important.Based on the mined-out area at the scene detection and management of information analysis and research, the mined-out area after the main means of detection and geophysical exploration and drilling methods must study. Professional geophysical RAS-24 digital seismographs and Sufer, such as image processing software, the scene of the application of relevant technology and testing of this cross-Kongbo-speed test, and test results were bored detection inspection work, obtain relevant information and conclusions .The following are the main conclusions: (1) of this cross-Kongbo-speed test, to test the designated area between the formation drilling grouting deal with the situation after a more comprehensive understanding. (2) of the surveyed area through a comprehensive analysis of the information found in the surveyed area of the formation of the test holes have larger changes in velocity, before the formation of low-velocity have different levels of increased seismic velocity test and achieved good The results, achieved the expected goals. (3) pre-existing low velocity, and different locations, different sizes, varying degrees of collapse or collapse of, is now non-existent or significantly smaller. According to the scene Kongbo-speed results and results that has been completed filling the air in the management of projects designed to achieve the objective of governance, but also achieved the anticipated effects of treatment.