According to paractical construction at 25th contract section K318+148～K318+840of Shen-Da Freeway rebuilding engineering, the paper sums up soft soil subgrade construction technology, quality control means, quality inspect methods of dynamic consolidation and dynamic replacement in freeway。
Taking supervision works of the sixth contract segment in Qihe-Xiajin section of Qing-Yin expressway as example the importance of engineering quality supervision of expressway is discussed,at the same time corresponding method and measures are proposed for quality supervision and control in order to improve engineering quality of expressway.
Introduces the engineering general situation of NingQi railroad the fourth contract segment,discusses the construction craft of deep road reinforced concrete U type slot swivelling nozzle in region of FuShui,puts forward the construction the quantity control and safe measure in the process.
On the basis of construction practice of pavement cement stabilized course by plant mixing of I to Ⅴ contract sections of reconstruction and extension pavements of Shen -Da Freeway,the paper introduces their construction methods,aiming at concrete features of present project.
This paper expounds the method of evaluating the collapsibility of the loess, and connecting with the construction practice of the contract sections C16 and C17 of the Yuyan Superhighway, emphatically introduces the applicability, working principles, quality control and construction supervision of the collapsible loess foundation treatment including the replacement method, impact-rolling method and dynamic consolidation method.
The right excavation slope along K196+425～+640 was originally designed as a slope with 6.5 steps,52m in height,in which concrete beams with pre-stress cable anchors were designed on the surfaces of the 2 and 3 steps.
Some rules have been defined to map the features representing e-service information to elements in e-contract sections.
The paper analysed and investigated Constructional management mode of Subgrade Construetion of Eight Contract Section in Dhen-Ben Freeway
In this paper,it analyses and discusses that the system engineering construction of building express highway in deep ooze ground and the stabilization control standards of loading and draining in weak ground construction,based on the analysis and supervision the weak ground construction of No.4 contract section in Shenzhen to Shantou Express Highway.
The paper proved that cement spurting pile has advantages to shorten construction timelimit, reinforced quality, through the application of cement Spurting pile in second Contract Scetion of Fe-Kai freeway.