A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Monitoring auxiliary device suitable for vibro-replacement stone column
The invention discloses a monitoring auxiliary device suitable for a vibro-replacement stone column. The monitoring auxiliary device is formed by connecting steel strands in series with multiple stages of blocking pieces. The two steel strands are arranged in parallel and penetrate through all the stages of blocking pieces arranged at intervals, and the lengths of the steel strands between all the stages of blocking pieces are the same, so that all the blocking pieces are arranged in parallel. Each stage of blocking piece at least comprises a base plate and a double-hole anchorage device below the base plate; wherein the two steel strand penetrating holes of the double-hole anchorage device are both positive conical holes, and the steel strand penetrating holes are sleeved with conical clamping pieces of a conical hole matching structure and are fixed to the conical holes in a pre-tightening mode. According to the auxiliary device, the time required by the test is shortened, the cost is saved, the multi-stage blocking pieces are pre-buried in the vibro-replacement gravel pile construction process, the problems that a vibro-replacement gravel pile body has no cohesive force, and a sensor cannot be buried in the vibro-replacement gravel pile body are solved, and the test efficiency is improved. And by arranging an annular pressure sensor and a pore water pressure gauge, the stress size and the pore water pressure size of the designated position of the pile body are monitored, and real-time monitoring of the vibro-replacement gravel pile is achieved.
本发明公开了一种适用于振冲碎石桩的监测辅助装置，由钢绞线串联多级阻拦件构成；钢绞线平行设置两根并穿过间隔设置的各级阻拦件，各级阻拦件之间的钢绞线长度相同构成各阻拦件平行布置；每级阻拦件至少包括垫板和垫板下方的双孔锚具；其中，双孔锚具的两钢绞线穿孔均为正锥形孔，钢绞线穿孔部套装锥形孔匹配结构的锥形夹片与锥形孔预紧固定。本发明辅助装置缩短了试验所需要的时间，节省成本，采用多级阻拦件在振冲碎石桩建造过程中预埋设置，克服振冲碎石桩桩体无粘结力，传感器无法埋置在振冲碎石桩桩身内的问题，并通过设置环形压力传感器和孔隙水压计实现对桩身指定位置应力大小、孔隙水压力大小监测，实现振冲碎石桩实时监测。
Monitoring auxiliary device suitable for vibro-replacement stone column
The invention discloses a monitoring auxiliary device suitable for a vibro-replacement stone column. The monitoring auxiliary device is formed by connecting steel strands in series with multiple stages of blocking pieces. The two steel strands are arranged in parallel and penetrate through all the stages of blocking pieces arranged at intervals, and the lengths of the steel strands between all the stages of blocking pieces are the same, so that all the blocking pieces are arranged in parallel. Each stage of blocking piece at least comprises a base plate and a double-hole anchorage device below the base plate; wherein the two steel strand penetrating holes of the double-hole anchorage device are both positive conical holes, and the steel strand penetrating holes are sleeved with conical clamping pieces of a conical hole matching structure and are fixed to the conical holes in a pre-tightening mode. According to the auxiliary device, the time required by the test is shortened, the cost is saved, the multi-stage blocking pieces are pre-buried in the vibro-replacement gravel pile construction process, the problems that a vibro-replacement gravel pile body has no cohesive force, and a sensor cannot be buried in the vibro-replacement gravel pile body are solved, and the test efficiency is improved. And by arranging an annular pressure sensor and a pore water pressure gauge, the stress size and the pore water pressure size of the designated position of the pile body are monitored, and real-time monitoring of the vibro-replacement gravel pile is achieved.
本发明公开了一种适用于振冲碎石桩的监测辅助装置，由钢绞线串联多级阻拦件构成；钢绞线平行设置两根并穿过间隔设置的各级阻拦件，各级阻拦件之间的钢绞线长度相同构成各阻拦件平行布置；每级阻拦件至少包括垫板和垫板下方的双孔锚具；其中，双孔锚具的两钢绞线穿孔均为正锥形孔，钢绞线穿孔部套装锥形孔匹配结构的锥形夹片与锥形孔预紧固定。本发明辅助装置缩短了试验所需要的时间，节省成本，采用多级阻拦件在振冲碎石桩建造过程中预埋设置，克服振冲碎石桩桩体无粘结力，传感器无法埋置在振冲碎石桩桩身内的问题，并通过设置环形压力传感器和孔隙水压计实现对桩身指定位置应力大小、孔隙水压力大小监测，实现振冲碎石桩实时监测。
Monitoring auxiliary device suitable for vibro-replacement stone column
一种适用于振冲碎石桩的监测辅助装置
LI WANZHOU (author) / WU YUEDONG (author) / ZHOU JIAN (author) / WANG QIANG (author) / TIAN ZHENGHONG (author) / HE YINGJIAN (author) / YU JIAN (author) / ZHAO JUNBO (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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