This book describes indetail the rotary drilling rig and its construction technology. The authorgives a systematic introduction of stability analysis and calculation;meanwhile, he puts forward some innovative and practical methods of calculationand technical construction concepts. This book explains in detail thesemi-rigid pavement structure of highways in China, its bearing capacity andsurface functional status; analyzes the phenomenon and the causes of earlyfailure, and proposes preventive measures; introduces the characteristics,technical indicators and the actual use in the projects of rubble asphaltconcrete developed independently in China. This book also gives a comprehensiveevaluation of asphalt and modified asphalt, status of asphalt and asphaltconcrete as well as thin asphalt surface. This book is available for referencefor technical personnel working on design, construction, research andsupervision of highways and urban roads, as well as college teachers andstudents.

Li Zhongyin, MBA at University ofWisconsin USA, Ph.D. at China University of Geosciences, is vice president ofSany Heavy Industry Co., Ltd. He won several scientific and technologicalprogress awards at national, provincial and ministerial level, as well asnearly 40 patents of utility model and patents of invention. He was awarded theNational Model Worker by machinery industry in 2009.

Jiao Shengjian isdirector of college of machinery at Chang'an University and chairman ofHydraulics Branch of China Construction Machinery Association. He makes deepresearch on hydraulic machinery integration, hydraulic transmission andcontrol, hydraulic mechanical mixing drives, quick maintenance technology ofhighways. He won four scientific and technological progress awards atprovincial and ministerial level, as well as six patents of utility model andone patent of invention.