Diamond construction method of digging hole pile, stratified construction, in each layer construction, first use the diamond drill hole pile wall around certain height of the plurality of columns from the pile foundation from the core and the whole rock, the formation of a free surface, and then use the drill holes in the pile foundation on the core in the hole were inserted into the steel wedge, then hammering the steel wedge, the steel wedge pile foundation of a given core level of tension and shear stress, when the tensile stress is greater than the horizontal tension and shear of rock and shear stress, pile foundation core occurs crack and shear failure, split and whole rock, will be broken the rock out of pile hole, fixed pile holes, and then press the same process for the next layer construction, so the cycle of construction, until the pile hole into the hole.
【技术实现步骤摘要】
【技术保护点】
水钻挖孔桩施工方法,其特征在于,包括以下步骤:(1)桩孔测量放样:标出桩孔准确位置,按照桩位挖除覆盖层至岩石露出,标出设计桩中心;(2)布置水钻取芯点:环绕所标出的桩孔的内壁布置水钻取芯点,取芯点布置个数=π×(桩孔直径-水钻直径)/水钻直径;(3)钻取柱体岩芯:在每个取芯点用水钻向下钻取一定高度的柱体岩芯,水钻运转过程中通过冷却水流对水钻钻头进行冷却;将钻取的岩芯完全取出,使桩孔中间形成一个与桩孔内壁完全分开的桩基岩芯;(4)桩基岩芯布点打孔:用电钻在所述桩基岩芯上钻至少三个小孔;(5)分裂桩基岩芯:在所述小孔内打入钢楔,用大锤捶击钢楔,使桩基岩芯完全破裂;(6)出渣:将 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:王林国,陈卫华,薛维龙,张志龙,万刚,邓平,
申请(专利权)人:中交第四公路工程局有限公司,
类型:发明
国别省市:11
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