System for driving open end pipe piles on the ocean floor using
pneumatic evacuation and existing hydrostatic pressure

    公开(公告)号:US4575282A

    公开(公告)日:1986-03-11

    申请号:US616815

    申请日:1984-06-04

    摘要: A new pile assembly is disclosed. It comprises an open end pipe pile (a cylindrical pipe pile provided with a pile cap) that is provided with: (1) a diaphragm adapted to slide axially within said open end pipe pile; (2) a conduit that allows gases and liquids to flow to and from the upper portion of the interior of said open end pipe pile through a conduit port; and (3) a one-way valve that allows gases and liquids to flow from an inlet port (that is below said conduit port) in the interior of said open end pipe pile to an exhaust port on the exterior of said open end pipe pile. The preferred embodiment of the invention also comprises: (4) an open end pipe pile with a lower end of reduced interior diameter; (5) means for retaining drilling mud in the lower portion of said open end pipe pile; and (6) a flexible riser in the interior of said open end pipe pile that provides a passageway for liquids and gases from said inlet port to said one-way valve.A new process for driving an open end pipe pile into the sea floor at significant depths below the ocean surface is also disclosed. It comprises the steps of: (1) displacing liquid from the interior of an open end pipe pile (that has initially penetrated the sea floor) to the ambient by forcing compressed gas into the upper portion of said open end pipe pile; and (2) evacuating or venting said compressed gas from the upper portion of said open end pipe pile to the atmosphere thereby causing said pile to be driven by existing hydrostatic pressure. In the preferred embodiment of the process, the hydrostatic pile driving is done in a plurality of stages, with each stage comprising said steps (1) and (2). The preferred embodiment of the process also comprises the use of drilling mud: to provide lubrication between the diaphragm and the interior surface of the pipe pile, and between the exterior surface of the soil core and the interior surface of the pipe pile; and to give additional weight to the pile assembly thereby increasing the initial penetration of the sea floor, and preventing piping during the hydrostatic pile driving of step (2).

    Device for the control of the internal pressure in a drill pipe for the
construction of footings
    15.
    发明授权
    Device for the control of the internal pressure in a drill pipe for the construction of footings 失效
    用于控制用于建造脚凳的钻杆内部压力的装置

    公开(公告)号:US4295759A

    公开(公告)日:1981-10-20

    申请号:US118504

    申请日:1980-02-04

    CPC分类号: E02D5/665 E02D5/385 E02D5/42

    摘要: A device for the control of the internal pressure in a drill pipe or tremie is disclosed. The tremie is used in footings and especially in the construction of compressed concrete footings. The tremie has a valve located in a lid that serves for the tight seal of the tremie. The valve is subjected to a counter-pressure which is greater than the effective power of the internal pressure of the tremie. A hoisting cable is connected to the valve stem and the power of the hoisting cable under normal operating conditions in combination with the internal pressure of the tremie is large enough to overcome the counterpressure. The valve is shifted to vent the internal pressure of the tremie when the same is rapidly removed from the footing bore due to a decrease in ground friction.

    摘要翻译: 公开了一种用于控制钻杆或锤头中的内部压力的装置。 颤抖用于基础,特别是在压缩混凝土基础施工中。 颤抖具有位于盖中的阀,其用于紧密密封的颤抖。 该阀受到大于该颤抖内部压力的有效功率的反压力。 提升电缆连接到阀杆,在正常工作条件下,提升电缆的功率与颤音的内部压力相结合,足以克服反压力。 当由于地面摩擦力的降低而使其从基础孔迅速移除时,阀被移动以排出颤抖的内部压力。

    PRE-STRESS CORROSION-RESISTANT TUBULAR PILE USED IN SPECIAL COASTAL GEOLOGICAL CONDITIONS AND MANUFACTURING METHOD
    18.
    发明申请
    PRE-STRESS CORROSION-RESISTANT TUBULAR PILE USED IN SPECIAL COASTAL GEOLOGICAL CONDITIONS AND MANUFACTURING METHOD 有权
    特殊沿海地质条件和制造方法中使用的预应力耐腐蚀管桩

    公开(公告)号:US20150361633A1

    公开(公告)日:2015-12-17

    申请号:US14765207

    申请日:2014-01-29

    发明人: Chenghua Yan

    摘要: A pre-stress corrosion-resistant tubular pile used in special coastal geological conditions and manufacturing method thereof is disclosed. The raw materials and proportions of the pre-stress corrosion-resistant tubular pile are as follows: 350-450 parts by weight of cement; 90-135 parts by weight of an ore powder; 600-700 parts by weight of sand; 100-120 parts by weight of stones; water and a water reducing agent; wherein the cement and ore powder are gels; the weight ratio of water to the gels is 0.30-0.31, and the mass ratio of the water reducing agent to the gels is (1.8-2.2):100.

    摘要翻译: 公开了一种用于特殊沿海地质条件的预应力耐腐蚀管桩及其制造方法。 预应力耐腐蚀管桩的原料和比例如下:350-450重量份水泥; 90-135重量份的矿粉; 600-700重量份砂; 100-120重量份石头; 水和减水剂; 其中所述水泥和矿粉是凝胶; 水与凝胶的重量比为0.30-0.31,减水剂与凝胶的质量比为(1.8-2.2):100。

    Process for ground consolidation and reinforcement of stressed anchorage piling increasing the load capacity
    20.
    发明授权
    Process for ground consolidation and reinforcement of stressed anchorage piling increasing the load capacity 失效
    加固锚固加固加固加固载荷能力的方法

    公开(公告)号:US3742717A

    公开(公告)日:1973-07-03

    申请号:US3742717D

    申请日:1971-06-30

    申请人: WEY G

    发明人: WEY G

    CPC分类号: E02D5/42 E02D5/44 E02D5/54

    摘要: A process and system for ground consolidation and increasing the load capacity of piles wherein the lower end of a bore hole is enlarged upon injection of a high pressure liquid, the pressure of which is periodically varied at a high frequency to cause compression and consolidation of the surrounding ground area and the widening of the lower end of the bore hole. Reinforcing anchorage structure is mounted within the bore hole and embedded within hardened concrete or like material, and a stressing steel rod is fixed to the anchorage and extends upwardly through the bore hole for connection to suitable building support structure mounted at ground level.

    摘要翻译: 一种用于地面固结和增加桩的承载能力的方法和系统,其中在注入高压液体时,钻孔的下端被扩大,其压力在高频周期性地变化以引起压缩和固结 周围地面区域和钻孔下端的加宽。 加固锚固结构安装在钻孔内并嵌入硬化混凝土或类似材料中,并且应力钢杆固定在锚固件上,并向上延伸穿过钻孔,以连接到安装在地面上的合适的建筑物支撑结构。