Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Depressurization well and leakage detection method thereof
The invention relates to a depressurization well and a leakage detection method thereof. The depressurization well comprises a well hole dug in the ground, a well casing inserted into the well hole and provided with the top end protruding out of the ground, a clay ball layer backfilled between the well hole and the outer wall of the well casing, and a plurality of water pressure gauges buried in the clay ball layer, wherein the multiple water pressure gauges are arranged in the depth direction of the well casing at intervals, the water pressure gauges located at the same depth are arranged around the outer wall of the well casing at intervals, and when it is detected that readings of the water pressure gauges are increased, it is judged that leakage occurs near the burying positions of thecorresponding water pressure gauges, thus the leakage position is determined, and plugging construction is conducted on the leakage position. Under the condition that the sealing performance of the clay ball layer is good, the water pressure gauges are equivalently arranged in a water-resisting layer, and the detected pore water pressure is small and stable in numerical value. When the readings of the water pressure gauges are increased and the change rate is high, the leakage problem of clay balls near the burying position of the water pressure gauges can be judged, and thus repairing measures are made in time to prevent further leakage.
本发明涉及一种降压井及其渗漏检测方法，其中降压井包括：开挖于地面的井孔；插设于井孔内且顶端凸伸出地面的井管；回填于井孔和井管外壁之间的粘土球层；埋设于粘土球层内的多个水压计，多个水压计沿着井管的深度方向间隔设置，且位于同一深度的多个水压计围绕井管的外壁间隔设置，当检测到水压计的示数增大时，判断对应的水压计的埋设位置附近出现渗漏，以确定渗漏位置并对渗漏位置进行封堵施工。在粘土球层密封性能较好的情况下，水压计相当于布置在隔水层中，检测到的孔隙水压力较小数值稳定。当水压计的示数增大且变化速率快时，即可判断该水压计埋设位置的附近粘土球存在渗漏问题。及时作出修补措施，防止进一步渗漏。
Depressurization well and leakage detection method thereof
The invention relates to a depressurization well and a leakage detection method thereof. The depressurization well comprises a well hole dug in the ground, a well casing inserted into the well hole and provided with the top end protruding out of the ground, a clay ball layer backfilled between the well hole and the outer wall of the well casing, and a plurality of water pressure gauges buried in the clay ball layer, wherein the multiple water pressure gauges are arranged in the depth direction of the well casing at intervals, the water pressure gauges located at the same depth are arranged around the outer wall of the well casing at intervals, and when it is detected that readings of the water pressure gauges are increased, it is judged that leakage occurs near the burying positions of thecorresponding water pressure gauges, thus the leakage position is determined, and plugging construction is conducted on the leakage position. Under the condition that the sealing performance of the clay ball layer is good, the water pressure gauges are equivalently arranged in a water-resisting layer, and the detected pore water pressure is small and stable in numerical value. When the readings of the water pressure gauges are increased and the change rate is high, the leakage problem of clay balls near the burying position of the water pressure gauges can be judged, and thus repairing measures are made in time to prevent further leakage.
本发明涉及一种降压井及其渗漏检测方法，其中降压井包括：开挖于地面的井孔；插设于井孔内且顶端凸伸出地面的井管；回填于井孔和井管外壁之间的粘土球层；埋设于粘土球层内的多个水压计，多个水压计沿着井管的深度方向间隔设置，且位于同一深度的多个水压计围绕井管的外壁间隔设置，当检测到水压计的示数增大时，判断对应的水压计的埋设位置附近出现渗漏，以确定渗漏位置并对渗漏位置进行封堵施工。在粘土球层密封性能较好的情况下，水压计相当于布置在隔水层中，检测到的孔隙水压力较小数值稳定。当水压计的示数增大且变化速率快时，即可判断该水压计埋设位置的附近粘土球存在渗漏问题。及时作出修补措施，防止进一步渗漏。
Depressurization well and leakage detection method thereof
降压井及其渗漏检测方法
ZHU YANFEI (Autor:in) / WANG JIANXIU (Autor:in) / PAN WEIQIANG (Autor:in) / QU JIANXUN (Autor:in) / WU ZHAO (Autor:in) / LONG GUANHONG (Autor:in) / WEN SUOLIN (Autor:in) / JIN XIN (Autor:in) / TANG CHENYAO (Autor:in) / TANG XU (Autor:in)
05.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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