Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for evaluating prestress state of bag type expanded head anchor rod
The invention relates to the technical field of bag-type expanded-head anchor rods, in particular to a bag-type expanded-head anchor rod prestress state evaluation method which is used for evaluating the prestress state of a bag-type expanded-head anchor rod and comprises the steps that before raft construction, an anchor rod body is tensioned for multiple times, and a bag-type expanded-head anchor rod prestress state evaluation result is obtained; a detection sensor for detecting the prestress of the anchor rod body is arranged on the anchor rod body between the bottom plate and the bag; the tension is gradually increased when the anchor rod body is tensioned each time, and during each time of tensioning, the tension value of tensioning and the reading of the corresponding detection sensor are recorded, a two-dimensional anchor rod body prestress distribution table is drawn according to the multiple pairs of tension values and the reading of the detection sensor, and then a unary linear regression prestress evaluation line is obtained in a linear regression mode. After construction of the raft plate is completed, a prestress state evaluation value is obtained only through correspondence between the reading of the detection sensor and the prestress evaluation line. The method has the advantage that the prestress of the bag type expanded head anchor rod in the service process can be conveniently evaluated.
本申请涉及一种囊式扩大头锚杆的技术领域，尤其是涉及一种囊式扩大头锚杆预应力状态评估方法，其用于对囊式扩大头锚杆的预应力进行状态评估，包括在筏板施工前，对锚杆杆体进行多次张拉，在底板与囊袋之间的锚杆杆体上设置有用于检测锚杆杆体预应力的检测传感器；每次对锚杆杆体张拉时拉力逐渐增大，并且在每次张拉时，通过记录张拉的拉力值和对应的检测传感器的读数，以多对拉力值和检测传感器读数绘制二维锚杆杆体预应力分布表，再采用线性回归的方式得到一元线性回归预应力评估线，在筏板完成施工后仅通过检测传感器的读数与预应力评估线进行对应得到预应力状态评估值。本申请具有方便对囊式扩大头锚杆服役过程中的预应力进行评估的效果。
Method for evaluating prestress state of bag type expanded head anchor rod
The invention relates to the technical field of bag-type expanded-head anchor rods, in particular to a bag-type expanded-head anchor rod prestress state evaluation method which is used for evaluating the prestress state of a bag-type expanded-head anchor rod and comprises the steps that before raft construction, an anchor rod body is tensioned for multiple times, and a bag-type expanded-head anchor rod prestress state evaluation result is obtained; a detection sensor for detecting the prestress of the anchor rod body is arranged on the anchor rod body between the bottom plate and the bag; the tension is gradually increased when the anchor rod body is tensioned each time, and during each time of tensioning, the tension value of tensioning and the reading of the corresponding detection sensor are recorded, a two-dimensional anchor rod body prestress distribution table is drawn according to the multiple pairs of tension values and the reading of the detection sensor, and then a unary linear regression prestress evaluation line is obtained in a linear regression mode. After construction of the raft plate is completed, a prestress state evaluation value is obtained only through correspondence between the reading of the detection sensor and the prestress evaluation line. The method has the advantage that the prestress of the bag type expanded head anchor rod in the service process can be conveniently evaluated.
本申请涉及一种囊式扩大头锚杆的技术领域，尤其是涉及一种囊式扩大头锚杆预应力状态评估方法，其用于对囊式扩大头锚杆的预应力进行状态评估，包括在筏板施工前，对锚杆杆体进行多次张拉，在底板与囊袋之间的锚杆杆体上设置有用于检测锚杆杆体预应力的检测传感器；每次对锚杆杆体张拉时拉力逐渐增大，并且在每次张拉时，通过记录张拉的拉力值和对应的检测传感器的读数，以多对拉力值和检测传感器读数绘制二维锚杆杆体预应力分布表，再采用线性回归的方式得到一元线性回归预应力评估线，在筏板完成施工后仅通过检测传感器的读数与预应力评估线进行对应得到预应力状态评估值。本申请具有方便对囊式扩大头锚杆服役过程中的预应力进行评估的效果。
Method for evaluating prestress state of bag type expanded head anchor rod
一种囊式扩大头锚杆预应力状态评估方法
CAI DONGBO (Autor:in) / CHEN YONG (Autor:in) / CHAI SHAOQIANG (Autor:in) / WANG WEI (Autor:in) / ZHOU QING (Autor:in) / LI KUN (Autor:in)
11.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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