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A platform for research: civil engineering, architecture and urbanism
Underwater prestressed cable-stayed foundation combining high-pressure jet grouting and expanded anchor rod technology
The invention provides an underwater prestressed cable-stayed foundation combining high-pressure jet grouting and expanded anchor rod technologies. The underwater prestressed cable-stayed foundation comprises a force transmission assembly part, a high-pressure jet grouting pile part and an expanded anchor rod part. The force transmission assembly part is composed of a force transmission steel plate, a prestress locking bolt and a hinge piece, the expanded body anchor rod part comprises an unexpanded section and an expanded section, the unexpanded section is composed of a grouting body and a prestress ribbed steel bar, and the expanded section is composed of a grouting body, the prestress ribbed steel bar and an expanded section steel bar cage. Wherein the expansion section reinforcement cage is composed of an upper reinforcement cage fixing bolt, a lower reinforcement cage fixing bolt, reinforcement cage umbrella supports, reinforcement cage longitudinal bars, reinforcement cage annular stirrups, reinforcement cage pressure-bearing plates and reinforcement cage axial hollow steel pipes. In the specific implementation process, the axis of the high-pressure jet grouting pile part coincides with the axis of the expanded anchor rod part, the included angle between the axis of the high-pressure jet grouting pile part and the horizontal direction ranges from 45 degrees to 90 degrees, and a connecting rod penetrating through the water surface and a prestressed ribbed steel bar are connected into a whole through a hinge piece of the force transmission assembly part. According to the method, the structure is reasonable, the method is advanced and scientific, by arranging the anchoring body combining the high-pressure jet grouting and the expanded anchor rod, the tensile property of the rod piece is remarkably improved, the construction speed is obviously increased, the economic cost is greatly reduced, and the method has high reference value and guiding significance for practical projects such as an overwater flexible photovoltaic support cable-stayed foundation.
本发明提供一种联合高压旋喷和扩体锚杆技术的水下预应力斜拉基础，包括传力组件部分、高压旋喷桩部分和扩体锚杆部分。传力组件部分由传力钢板、预应力锁定螺栓和铰接件构成，扩体锚杆部分包括未扩段和扩大段，其中未扩段由注浆体和预应力带肋钢筋构成，扩大段由注浆体、预应力带肋钢筋和扩大段钢筋笼构成，其中扩大段钢筋笼由上下共两个钢筋笼固定螺栓、钢筋笼伞撑、钢筋笼纵筋、钢筋笼环向箍筋、钢筋笼承压板和钢筋笼轴向空心钢管构成。具体实施时，高压旋喷桩部分和扩体锚杆部分的轴线重合，且与水平方向的夹角范围为45°~90°，传力组件部分的铰接件将穿过水面的连接杆和预应力带肋钢筋连接为一体。本发明结构合理，方法先进科学，通过本发明，设置高压旋喷和扩体锚杆相结合的锚固体使得杆件的抗拉性能显著提升，施工速度明显加快，经济成本大幅降低，对于水上柔性光伏支架斜拉基础等实际工程具有较高的参考价值和指导意义。
Underwater prestressed cable-stayed foundation combining high-pressure jet grouting and expanded anchor rod technology
The invention provides an underwater prestressed cable-stayed foundation combining high-pressure jet grouting and expanded anchor rod technologies. The underwater prestressed cable-stayed foundation comprises a force transmission assembly part, a high-pressure jet grouting pile part and an expanded anchor rod part. The force transmission assembly part is composed of a force transmission steel plate, a prestress locking bolt and a hinge piece, the expanded body anchor rod part comprises an unexpanded section and an expanded section, the unexpanded section is composed of a grouting body and a prestress ribbed steel bar, and the expanded section is composed of a grouting body, the prestress ribbed steel bar and an expanded section steel bar cage. Wherein the expansion section reinforcement cage is composed of an upper reinforcement cage fixing bolt, a lower reinforcement cage fixing bolt, reinforcement cage umbrella supports, reinforcement cage longitudinal bars, reinforcement cage annular stirrups, reinforcement cage pressure-bearing plates and reinforcement cage axial hollow steel pipes. In the specific implementation process, the axis of the high-pressure jet grouting pile part coincides with the axis of the expanded anchor rod part, the included angle between the axis of the high-pressure jet grouting pile part and the horizontal direction ranges from 45 degrees to 90 degrees, and a connecting rod penetrating through the water surface and a prestressed ribbed steel bar are connected into a whole through a hinge piece of the force transmission assembly part. According to the method, the structure is reasonable, the method is advanced and scientific, by arranging the anchoring body combining the high-pressure jet grouting and the expanded anchor rod, the tensile property of the rod piece is remarkably improved, the construction speed is obviously increased, the economic cost is greatly reduced, and the method has high reference value and guiding significance for practical projects such as an overwater flexible photovoltaic support cable-stayed foundation.
本发明提供一种联合高压旋喷和扩体锚杆技术的水下预应力斜拉基础，包括传力组件部分、高压旋喷桩部分和扩体锚杆部分。传力组件部分由传力钢板、预应力锁定螺栓和铰接件构成，扩体锚杆部分包括未扩段和扩大段，其中未扩段由注浆体和预应力带肋钢筋构成，扩大段由注浆体、预应力带肋钢筋和扩大段钢筋笼构成，其中扩大段钢筋笼由上下共两个钢筋笼固定螺栓、钢筋笼伞撑、钢筋笼纵筋、钢筋笼环向箍筋、钢筋笼承压板和钢筋笼轴向空心钢管构成。具体实施时，高压旋喷桩部分和扩体锚杆部分的轴线重合，且与水平方向的夹角范围为45°~90°，传力组件部分的铰接件将穿过水面的连接杆和预应力带肋钢筋连接为一体。本发明结构合理，方法先进科学，通过本发明，设置高压旋喷和扩体锚杆相结合的锚固体使得杆件的抗拉性能显著提升，施工速度明显加快，经济成本大幅降低，对于水上柔性光伏支架斜拉基础等实际工程具有较高的参考价值和指导意义。
Underwater prestressed cable-stayed foundation combining high-pressure jet grouting and expanded anchor rod technology
一种联合高压旋喷和扩体锚杆技术的水下预应力斜拉基础
DAI GUOLIANG (author) / LIU HONGBO (author) / XIANG YUFAN (author)
2024-10-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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