摘要：【中文】本发明公开了一种用于改善桩基础的承载性能的混凝土材料及其应用，属于土木工程材料和施工技术领域。该混凝土材料中加入碳纳米材料，利用碳纳米材料的独特的结构及优异的物理化学性能、表面性质、吸附特性等优势，从微观上改变混凝土之间的粘结性能，以提高混凝土之间的粘结性能，使桩基础在拉力、弯矩、剪力作用下延迟裂缝的出现，提高桩基础的承载能力。 【EN】The invention discloses a concrete material for improving the bearing performance of a pile foundation and application thereof, belonging to the technical field of civil engineering materials and construction. The carbon nano material is added into the concrete material, and the bonding property between the concretes is changed microscopically by utilizing the advantages of unique structure, excellent physical and chemical properties, surface properties, adsorption characteristics and the like of the carbon nano material so as to improve the bonding property between the concretes, delay the occurrence of cracks under the action of tensile force, bending moment and shearing force of the pile foundation and improve the bearing capacity of the pile foundation.

摘要：【中文】本发明公开了一种玄武岩纤维智能锚杆检测系统，包括锚杆，锚杆外部嵌套有锚杆接触环，锚杆内部设有金属刻丝，所述金属刻丝的一端与锚杆接触环连接，另一端与失稳预警系统连接；所述锚杆外部设有锚环，锚环内侧与锚杆接触环相对应的位置设有锚环接触环，所述的锚环接触环与失稳预警系统连接，所述的锚杆内部设有光栅，所述的光栅与光栅检测系统连接。本发明能够降低锚杆运营阶段维护难度，提高运营阶段锚杆检测效率；采用布拉格光栅替代应变片，用以检测锚杆系统的应力状态，相较于应变片，光栅寿命较长，可以在锚杆运营阶段通过预留端口，进行长期监测；本发明的锚杆和锚环均采用玄武岩纤维制成，能够很好地与光栅及金属刻丝编织，且具有绝缘性。 【EN】The invention discloses a basalt fiber intelligent anchor rod detection system which comprises an anchor rod, wherein an anchor rod contact ring is nested outside the anchor rod, metal cutting wires are arranged inside the anchor rod, one end of each metal cutting wire is connected with the anchor rod contact ring, and the other end of each metal cutting wire is connected with a instability early warning system; the anchor rod outside is equipped with the anchor ring, and the anchor ring inboard is equipped with anchor ring contact ring with the corresponding position of anchor rod contact ring, anchor ring contact ring be connected with unstability early warning system, the anchor rod inside be equipped with the grating, grating and grating detecting system be connected. The anchor rod detection method can reduce the maintenance difficulty of the anchor rod in the operation stage and improve the anchor rod detection efficiency in the operation stage; the Bragg grating is adopted to replace a strain gauge for detecting the stress state of the anchor rod system, compared with the strain gauge, the service life of the Bragg grating is longer, and long-term monitoring can be carried out through a reserved port in the anchor rod operation stage; the anchor rod and the anchor ring are both made of basalt fibers, can be well woven with gratings and metal carved wires, and have insulativity.

摘要：【中文】本发明公开一种抱箍式连接的PHC管桩及其卡箍尺寸确定方法，该抱箍式连接的PHC管桩的接桩点位置与桩身为同一外径，避免了卡箍凸出桩身形成竹节，从而避免在打桩过程中产生的打入难、桩周土体受打桩的扰动大、桩周土体被破坏摩阻力发挥不充分等问题。采用抱箍式卡箍接桩，避免了由于焊接工人技术问题影响接桩质量，同时采用该卡箍尺寸确定方法，保证卡箍能够适应PHC管桩的整体力学性能，保证了接桩的质量。 【EN】The invention discloses a hoop-type connected PHC pipe pile and a hoop size determination method thereof, wherein the pile splicing point position of the hoop-type connected PHC pipe pile and a pile body are the same in outer diameter, and the hoop is prevented from protruding out of the pile body to form bamboo joints, so that the problems of difficult driving, large disturbance of a soil body around the pile due to the driving, insufficient exertion of damaged frictional resistance of the soil body around the pile and the like in the pile driving process are avoided. The hoop type clamp is adopted for pile splicing, the problem that pile splicing quality is influenced by the technical problem of welding workers is avoided, meanwhile, the size determining method of the clamp is adopted, the clamp can be ensured to adapt to the overall mechanical performance of the PHC tubular pile, and pile splicing quality is ensured.