土木工程畢業(yè)外文翻譯---軟土路基處理方法概述-建筑結(jié)構(gòu)(編輯修改稿)
2025-06-26 13:55 本頁面
【文章內(nèi)容簡介】 s, dynamic paction, cement and fly ash gravel piles, DJM France. The dynamic paction method can be used to hammer paction or dynamic paction: sand foundation and the water content in a range of soft clay foundation. Its basic principle is: the soil under the huge impact in the soil to produce a lot of pressure and shock wave, resulting in the soil of local pression, tamping points around within a certain depth to produce the fissures good drainage channel, so that the soil pore water (gas) discharged smoothly, the rapid consolidation of soil. Dynamic paction, foundation bearing capacity can be increased 34 times, pression can be reduced from 200% to 1000%. Good ram is able to hit: In theory, the best tamping can function in the foundation soil pore water pressure reaches the soil weight pressure, such tamping energy known as the best tamping energy. Therefore, according to the superposition of the pore water pressure value to determine the best tamping energy. In sandy soil, the growth and dissipation of pore water pressure of only a few minutes, the pore water pressure can not be with the tamping can increase and overlay, the maximum pore water pressure increment and the number of tamping relations to determine the best tamping can. Sea highway landslide accumulation of broken mudstone deposits thickness of 4 ~ 12M from the soil samples of the soil test report shows that for low liquid limit clay containing Water to , the cohesiveness ~ internal friction angle of ~ . Sand paction piles, rubble pile reinforcement method: a kind of posite foundation, thick soft soil replacement to handle the more difficult, the foundation soil is unsaturated cohesive soil or sand, sand paction piles or broken Shizhuang reinforcement method, the foundation soil pacting bulk density increased, pores less than to prevent liquefaction of sand in the earthquake or by vibration and improve the foundation soil shear strength and the level of resistance, reducing the consolidation settlement, so that the foundation to change uniform , play replacement, paction, drainage and to prevent the foundation to produce sliding failure, pleted ahead of the settlement to reduce the differential settlement. 3 drainage consolidation method Pressure on the soft ground and in line with internal drainage, accelerate the drainage of the soft ground, speed up the processing of soft soil consolidation known as drainage consolidation method. For saturated cohesive soil foundation in handling all types of mud, silt clay and red fill. Soft ground in the role of the additional load is gradually passed to the pore water, the void ratio decreases, resulting in consolidation deformation. In this process, with the gradual diffusion of excess pore water pressure in soil, soil effective stress, and settlement in advance or improve the settling velocity. Reinforcement methods: heap preloading method sand wells France, packed sand, vacuum preloading method, electroosmosis water method, dewatering method, plastic drainage plate method. Preloading: divided into the surcharge preloading, set Preloading and less preloading, the construction process is simple, but a longer duration, surcharge preloading time is generally six months, usually used in conjunction with wastewater treatment foundation . New kiln South Road, Guangzhou City, road works is to use a heap load reinforcement of soft
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