Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Emergency treatment method for gushing of large deep foundation pit
The invention provides a large deep foundation pit inrush emergency treatment method. The method comprises the following steps that S1, the inrush condition is evaluated; s2, if the inrush water inflow or flow is smaller than a preset value, treatment measures of back pressure and grouting leakage stoppage are adopted at the inrush position; s3, if the inrush water inflow or flow is larger than the preset value, after water pumping and dewatering are conducted on a dewatering well outside the pit, back pressure is conducted on the inrush position, and then the treatment measures of grouting and leaking stoppage are adopted on the periphery or the periphery of the foundation pit; through the steps, sudden surge emergency treatment is achieved. According to geological survey and pavement structure layout, a plurality of dewatering wells are arranged outside a foundation pit, and the dewatering wells comprise shallow dewatering wells and pressure-bearing dewatering wells; and the inrush incoming water condition is evaluated, whether the inrush incoming water belongs to shallow incoming water or pressure-bearing layer incoming water is evaluated, and different drainage plans are started for the shallow dewatering well and the pressure-bearing dewatering well on the periphery of the foundation pit. The disposal speed is high, the precipitation amount is greatly reduced, and new uncontrollable risks caused by precipitation are reduced.
本发明提供一种大型深基坑突涌应急处理方法，包括以下步骤：S1、对突涌状况进行评估；S2、若突涌进水量或流量小于预设值，在突涌位置采用反压和注浆堵漏的处理措施；S3、若突涌进水量或流量大于预设值，则采用在坑外降水井抽水降水后，再在突涌位置反压，然后在周边或基坑的外围采用注浆堵漏的处理措施；通过以上步骤，实现突涌应急处理。根据地质勘测和路面构建物布局，在基坑外为设置多个降水井，降水井包括浅层降水井和承压降水井；对突涌的来水状况进行评估，评估突涌的来水属于浅层来水还是承压层来水，分别对基坑外围的浅层降水井和承压降水井启动不同的排水计划。处置速度快，大幅减少降水量，减少由降水带来的新的不可控风险。
Emergency treatment method for gushing of large deep foundation pit
The invention provides a large deep foundation pit inrush emergency treatment method. The method comprises the following steps that S1, the inrush condition is evaluated; s2, if the inrush water inflow or flow is smaller than a preset value, treatment measures of back pressure and grouting leakage stoppage are adopted at the inrush position; s3, if the inrush water inflow or flow is larger than the preset value, after water pumping and dewatering are conducted on a dewatering well outside the pit, back pressure is conducted on the inrush position, and then the treatment measures of grouting and leaking stoppage are adopted on the periphery or the periphery of the foundation pit; through the steps, sudden surge emergency treatment is achieved. According to geological survey and pavement structure layout, a plurality of dewatering wells are arranged outside a foundation pit, and the dewatering wells comprise shallow dewatering wells and pressure-bearing dewatering wells; and the inrush incoming water condition is evaluated, whether the inrush incoming water belongs to shallow incoming water or pressure-bearing layer incoming water is evaluated, and different drainage plans are started for the shallow dewatering well and the pressure-bearing dewatering well on the periphery of the foundation pit. The disposal speed is high, the precipitation amount is greatly reduced, and new uncontrollable risks caused by precipitation are reduced.
本发明提供一种大型深基坑突涌应急处理方法，包括以下步骤：S1、对突涌状况进行评估；S2、若突涌进水量或流量小于预设值，在突涌位置采用反压和注浆堵漏的处理措施；S3、若突涌进水量或流量大于预设值，则采用在坑外降水井抽水降水后，再在突涌位置反压，然后在周边或基坑的外围采用注浆堵漏的处理措施；通过以上步骤，实现突涌应急处理。根据地质勘测和路面构建物布局，在基坑外为设置多个降水井，降水井包括浅层降水井和承压降水井；对突涌的来水状况进行评估，评估突涌的来水属于浅层来水还是承压层来水，分别对基坑外围的浅层降水井和承压降水井启动不同的排水计划。处置速度快，大幅减少降水量，减少由降水带来的新的不可控风险。
Emergency treatment method for gushing of large deep foundation pit
大型深基坑突涌应急处理方法
LUO ZHENJIE (Autor:in) / LIN DONGFEI (Autor:in) / QIANG JUN (Autor:in) / SONG HONGWEI (Autor:in) / CUI YUXUAN (Autor:in) / FU YUCHAO (Autor:in) / LIU PENGFEI (Autor:in) / LYU JIANGBO (Autor:in) / CUI ZHICHENG (Autor:in) / JI CHANGSHENG (Autor:in)
05.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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