Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses an acoustic emission monitoring method for an underground jet grouting effect in a construction process. Waveguide tubes are embedded inside and outside a target pile diameter monitoring area of the underground jet grouting pile respectively, acoustic emission sensors are coupled to the ends, exposed out of the earth surface, of the waveguide tubes, acoustic emission signals generated when a jet grouting medium cuts a soil body in the construction process are picked up in real time, and acoustic emission characteristic information of the jet grouting pile body at different jet grouting depths and different radial positions of the pile body is counted; the method comprises the following steps: by taking sound emission characteristic information counted at a position close to the ground surface and away from a central axis and actual rotary jet grouting times at a fixed rotary jet grouting elevation in a construction process as reference values, homogenizing the sound emission characteristic information counted at different positions, defining the sound emission characteristic information as a soil body cutting coefficient, comparing and analyzing the soil body cutting coefficient, grading the rotary jet grouting effect, and obtaining a rotary jet grouting result. The grouting condition and the pile forming quality are fed back in real time; the jet grouting effect of the underground jet grouting pile can be continuously and quantitatively monitored in real time, visual construction of underground hidden engineering is achieved, the construction quality is guaranteed, and the construction cost is reduced.
本申请公开一种用于施工过程中地下旋喷效果的声发射监测方法。在地下旋喷桩目标桩径监测区域内外分别埋设波导管，在波导管出露地表一端耦合声发射传感器，实时拾取施工过程中旋喷介质切削土体产生的声发射信号，统计旋喷桩体在不同旋喷深度、桩体不同径向位置处的声发射特征信息；以近地表面，距中心轴心处所统计的声发射特征信息、施工过程中固定旋喷高程处的实际旋喷次数为参照值，对不同位置处统计的声发射特征信息进行均一化处理，定义为土体切削系数，对比分析土体切削系数，对旋喷效果进行等级划分,实时反馈注浆情况和成桩质量；能实时、连续、量化监测地下旋喷桩旋喷效果，实现地下隐蔽工程的可视化施工，保证施工质量，降低施工成本。
The invention discloses an acoustic emission monitoring method for an underground jet grouting effect in a construction process. Waveguide tubes are embedded inside and outside a target pile diameter monitoring area of the underground jet grouting pile respectively, acoustic emission sensors are coupled to the ends, exposed out of the earth surface, of the waveguide tubes, acoustic emission signals generated when a jet grouting medium cuts a soil body in the construction process are picked up in real time, and acoustic emission characteristic information of the jet grouting pile body at different jet grouting depths and different radial positions of the pile body is counted; the method comprises the following steps: by taking sound emission characteristic information counted at a position close to the ground surface and away from a central axis and actual rotary jet grouting times at a fixed rotary jet grouting elevation in a construction process as reference values, homogenizing the sound emission characteristic information counted at different positions, defining the sound emission characteristic information as a soil body cutting coefficient, comparing and analyzing the soil body cutting coefficient, grading the rotary jet grouting effect, and obtaining a rotary jet grouting result. The grouting condition and the pile forming quality are fed back in real time; the jet grouting effect of the underground jet grouting pile can be continuously and quantitatively monitored in real time, visual construction of underground hidden engineering is achieved, the construction quality is guaranteed, and the construction cost is reduced.
本申请公开一种用于施工过程中地下旋喷效果的声发射监测方法。在地下旋喷桩目标桩径监测区域内外分别埋设波导管，在波导管出露地表一端耦合声发射传感器，实时拾取施工过程中旋喷介质切削土体产生的声发射信号，统计旋喷桩体在不同旋喷深度、桩体不同径向位置处的声发射特征信息；以近地表面，距中心轴心处所统计的声发射特征信息、施工过程中固定旋喷高程处的实际旋喷次数为参照值，对不同位置处统计的声发射特征信息进行均一化处理，定义为土体切削系数，对比分析土体切削系数，对旋喷效果进行等级划分,实时反馈注浆情况和成桩质量；能实时、连续、量化监测地下旋喷桩旋喷效果，实现地下隐蔽工程的可视化施工，保证施工质量，降低施工成本。
Acoustic emission monitoring method for underground jet grouting effect in construction process
一种用于施工过程中地下旋喷效果的声发射监测方法
01.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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