Research On Basic Characteristics Of "Xigeda Filler" Embankment

As china's economic development, countries have more and more infrastructure projects, especially increasing investment in Pan-xi. Xi-chang, Pan zhi hua Vanadium and Titanium Resources Comprehensive Utilization Project is located in the left bank of the Anning River, which covers about 4.6km2. The project plant in the piedmont slope area, mainly "Xigeda group " Formation, After the excavation leveling, engineering area is mainly filled foundation, embankment of the total close to 7 million. The project in order to save costs, fill main excavation area is "Xigeda group" formation."Xigeda group" lithology soft, water-softening, stability decreased sharply, "Xigeda group "formations as large embankment foundation for heavy-duty industrial applications has not yet been in China. This paper relies on my teacher Kunming China Nonferrous Metals Industry Survey and Design Institute of LIU Wen-lian chief engineer who bear China Nonferrous Metals Industry Survey and Design Institute of Kunming commit《Xichang, Panzhihua Vanadium and Titanium Resources Comprehensive Utilization Project-"Xigeda group" fill the basic characteristics and methods of filling》project, through "Xigeda group" filler filling test site, by means of field trials and testing, To determine the " Xigeda filler" as a large building foundation embankment compaction process. This thesis work mainly in the following areas:1. In the Panzhihua New Steel Vanadium Titanium base in Xichang area plant, through the laboratory analysis "Xigeda group" Stratum composition and physical and mechanical indexes, find out "Xigeda group" filler special engineering properties, determine "Xigeda group" whether can as filler used in heavy industry building foundation;2. Through on-site reclamation, with 20t roller, exciting force for the compaction process under 340/170kN, determine "Xigeda group" use the best embankment type, tile thickness, best rolling variables such as compaction process; By field compaction tests, analysis "Xigeda group" layer embankment filling effect under the dynamic compaction process, ultimately determine the best site rolled embankment construction methods;3. By finite element software simulation of compaction process, according to the contrast of simulation results and experimental data, determined under different tamping energy the' Xigeda filler " effective depth of soil reclamation. To guide future design and construction of dynamic compaction filling provide basis;4,According to the dynamic simulation, get the " Xigeda filler" embankment reinforcement depth H and tamping energy M corresponding relationship is:H=1.0376M0.1948.