Adjacent Buried Gas Pipeline Blasting Construction Safety Management And Evaluation

With the vigorous development of the national economy, blasting technology has been in roads, railways and other infrastructure in the widely used, blasting can speed up the construction speed, saving construction costs, but the existing building(structure) building materials can easily harm revealed. Especially in recent years, with the further increase in energy demand, a large number of long-distance transports of buried pipeline is the construction and put into use, such as the famous "West-East" project. Because these large pipe length, the new road or rail is difficult to avoid intersecting or adjacent to, therefore, both to ensure the smooth development of blasting construction, without compromising safety near buried gas pipeline is of great significance.In this paper, theoretical analysis and field research combination, main gas pipeline blast near Buried construction safety management mechanism and construction blasting near buried gas pipeline on the safety evaluation of the content, the main research work and conclusions are as follows:(1) Application security manager theory, the analysis of the gas pipeline blast near buried construction safety management, security, technical security measures and organizational measures, and from the point of view of time and space, proposed safety management system.(2) The establishment of a mechanism of blasting vibration monitoring construction on adjacent buried pipeline from the standardization of standardized management and monitoring personnel monitoring equipment two angles studied blasting vibration monitoring of standardized management.(3) Gas pipeline blast near buried construction safety linkage mechanism comprising three states normal security cooperation mechanism construction, early warning alarm and emergency rescue under. Linkage mechanism refers to normal working condition vibration monitoring unit to allow access to data in a safe under the standards, the construction unit can continue to inform blasting construction; security cooperation mechanism warning alarm c ondition refers to vibration monitoring unit to obtain data exceeds the allowed safety standards above, should reported immediately to the relevant units to take measures to ensure the safety of construction blasting; emergency help secure linkage mechanism means that site-related units to take measures to minimize the loss of the accident.(4) Through the "beginning of construction index-Index Filter- indicators OK" three steps to establish a safety evaluation index system blast near buried gas pipeline construction on the indicators adopted primary system safety analysis, screening indicators gray correlation theory and select from the actual engineering data, to ensure the safety evaluation index system of scientific, reasonable and workable; indicators for the uncertainty, the establishment of a safety assessment based on unascertained measure the impact of blasting construction on adjacent buried natural gas pipeline model.(5) The proposed safety management system and safety evaluation model is applied to the Liu jiazui construction site blasting bridge piles, research shows that: the proposed security management mechanism to ensure that the natural gas pipeline safety, safety evaluation. Results of the model can be consistent with the actual situation.This study can provide reference for similar projects, it has practical significance.