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一沿革大家知道,把松软土层上的外力传递到其下某一深度的坚实土层中以保证建筑物的稳定、减少沉降,常采用桩。钢管桩与木桩、钢筋混凝土桩、予应力混凝土桩同属打入柱。它材料强度大、耐打、贯入能力强、排土量小、易接长与切断。和现场灌注桩相比,打入桩质量好、承载力可靠性大。 1822年,拦挡水上的钢板桩在英国成为专利以来,世界上始有钢桩。最初常使用的是铁管或铁棒,其后也把工字钢,钢轨作为桩使用。为了增加承载力,1838年出现底端带园盘的钢
As we all know, the external force on the soft soil layer is transferred to a solid soil layer under a certain depth to ensure the stability of the building and reduce the settlement. Piles are often used. Steel pipe piles and wooden piles, reinforced concrete piles, and prestressed concrete piles all belong to the same column. It has high material strength, resistance to hitting, strong penetration ability, small amount of earth discharge, easy access and cutting. Compared with on-site cast-in-place piles, the driven-in piles have good quality and reliable bearing capacity. In 1822, since the steel sheet piles on the water were patented in the United Kingdom, the world began to have steel piles. Iron pipes or iron bars were often used at first, and I-beams and rails were also used as piles. In order to increase the bearing capacity, in 1838 there appeared the steel with the bottom disc