asphaltum
1.On the basis of the stress analysis of overloading asphaltum highway surface, this paper reveals the destructive mechanism of overloading of vehicles on the asphaltum highway surface, discusses the main shortcomings of semi-rigidity basic asphaltum highway surface, and lastly recommends several types of asphaltum highway surface structures that can resist the overloading of vehicles.
2.This paper introduces construction technique and method of asphaltum concrete surface in a construction section of Reruan road in Songbei district of Harbin city.
3.The characters and reasons of easily destroyed asphaltum road was mainly discussed in this paper. Then some prevention and cure measures was proposed to improve the quality of road construction.
4.As GOR(gas-oil ratio) and asphaltum content of Orinoco oil are high,the imitated oil used in reservoir development simulation is mixed with oil in tank and natural gas.
5.Manufacturing technique of wax microcrystalline: with crude oil vacuum residua fractions as material, it is made from propane taking off asphaltum, furfural refining, ketone benzene taking off oil, and argil refining.
6.The dam of Dongtang Reservoir is a rockfill dam with asphaltum concrete core, the hight of the dam is 46 m, and the width of the core is 0.5m.
7.Supported by the national 863 Science Plan of China-Imlpementing Scheme on Intelligent Machine Group(Grant No.2001 AA422011)and Intelligence and Manufacture Imformatioization of the Construction Machinery of Road(2003AA430030), the communication system of asphaltum-concrete road construction is systematically and thoroughly studied.
8.Using carbon isotopes and organism sign compound and character of maturity to compare, we think that asphaltum show in south cincture is from three set source rock of different carbon isotopes-lower Silurian to middle and upper Ordovician, middle and upper Cambrian lower Cambrian & Sinian;
9.According to requirements of the development of LTU125A automatic asphaltum &concrete paver, this paper analysed requirements and the functions of paver control system, and described the module architecture of measure and control software, then demonstrated the design of signal input/output program, communication program between measure &control computer and interactive computer and direction processing computer, the main program for measure and control, and interactive program.2figs.,5refs.
10.： According to requirements of the development of LTU125A automatic asphaltum ＆ concrete paver，this paper analyzes requirements and the functions of paver control system，and describes the module architecture of measure and control software，then demonstrates the design of signal input／output program，and communication program between measure ＆ control computer and interactive computer and direction processing computer，and the main program for measure and control，and interactive program．
