濱海地區(qū)吹填海砂路用性能及其應用研究
發(fā)布時間:2018-09-10 12:45
【摘要】:濱海地區(qū)依靠其天然的地理資源,漁業(yè)、旅游業(yè)得到了迅速發(fā)展,然而公路建設問題也日益顯現(xiàn):土源供給不足、土源性質(zhì)較差。近年來,國家制定了關于可持續(xù)發(fā)展、節(jié)約土地資源的戰(zhàn)略思想,各級建設單位積極響應,開始尋求“就地取材、變廢為寶”的建設思路,,提出將濱海地區(qū)特有的海砂土作為路基填料進行公路建設的方案。該方案技術先進、經(jīng)濟節(jié)約、保護環(huán)境,能夠創(chuàng)造極佳的社會效益和經(jīng)濟效益。 針對以上要求,本文主要研究吹填海砂土路基填筑的適用性及其應用,并指導依托工程的施工。通過室內(nèi)試驗和現(xiàn)場試驗,以及理論分析相結合的方法深入研究了吹填海砂土的工程性質(zhì)。具體而言主要進行了以下研究: (1)通過室內(nèi)試驗研究濱海地區(qū)吹填海砂土顆粒級配情況、液塑限指標、含鹽量等物理力學特性。 (2)通過擊實試驗和CBR試驗對濱海地區(qū)吹填海砂土的路用性能進行評價。 (3)通過室內(nèi)不固結不排水三軸試驗對濱海地區(qū)吹填海砂土的固化性能進行研究。 (4)通過現(xiàn)場試驗對濱海地區(qū)吹填海砂土的路用性能、鹽漬化程度、碾壓方案、壓實性能進行研究。 (5)分別通過理論驗算和現(xiàn)場試驗對濱海地區(qū)吹填海砂土路基邊坡穩(wěn)定性進行研究。
[Abstract]:Coastal areas rely on their natural geographical resources, fisheries, tourism has been rapid development, but highway construction problems are increasingly apparent: inadequate supply of soil, soil-derived poor quality. Based on the idea of turning waste into treasure, this paper puts forward a scheme of highway construction by using special sea sand in coastal area as roadbed filler.
In view of the above requirements, this paper mainly studies the applicability and application of dredged reclamation sand subgrade filling, and directs the construction relying on the project.
(1) The physical and mechanical properties of dredged reclamation sand in coastal area, such as particle size distribution, liquid-plastic limit index and salt content, were studied by laboratory tests.
(2) evaluate the road performance of the reclamation area by means of compaction test and CBR test.
(3) The solidification behavior of dredged reclamation sand in coastal area was studied by indoor unconsolidated undrained triaxial test.
(4) The pavement performance, salinization degree, rolling scheme and compacting performance of dredged reclamation sand in coastal area are studied by field test.
(5) The slope stability of dredged reclamation sand subgrade in coastal area is studied by theoretical calculation and field test respectively.
【學位授予單位】:上海交通大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U416.1;U414
本文編號:2234483
[Abstract]:Coastal areas rely on their natural geographical resources, fisheries, tourism has been rapid development, but highway construction problems are increasingly apparent: inadequate supply of soil, soil-derived poor quality. Based on the idea of turning waste into treasure, this paper puts forward a scheme of highway construction by using special sea sand in coastal area as roadbed filler.
In view of the above requirements, this paper mainly studies the applicability and application of dredged reclamation sand subgrade filling, and directs the construction relying on the project.
(1) The physical and mechanical properties of dredged reclamation sand in coastal area, such as particle size distribution, liquid-plastic limit index and salt content, were studied by laboratory tests.
(2) evaluate the road performance of the reclamation area by means of compaction test and CBR test.
(3) The solidification behavior of dredged reclamation sand in coastal area was studied by indoor unconsolidated undrained triaxial test.
(4) The pavement performance, salinization degree, rolling scheme and compacting performance of dredged reclamation sand in coastal area are studied by field test.
(5) The slope stability of dredged reclamation sand subgrade in coastal area is studied by theoretical calculation and field test respectively.
【學位授予單位】:上海交通大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U416.1;U414
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