Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Subway foundation pit deep-buried karst cave treatment method
The invention discloses a subway foundation pit deep-buried karst cave treatment method, and relates to the field of foundation pit karst cave construction. The treatment method comprises the following steps: S1, carrying out construction preparation work, specifically, mastering and knowing the karst grouting project general situation of a construction area, and carrying out construction site leveling, surveying and setting out and settlement observation pile arrangement; S2, carrying out a process test, determining a filling material and a grouting material of the karst cave and proportioning parameters of the grouting material, selecting a proper filling material, and preparing grouting slurry; S3, carrying out drilling construction, and carrying out construction edge detection on the karst cave to determine the type of the karst cave and the position of a hole; S4, carrying out grouting construction; and S5, carrying out hole sealing, specifically, cleaning a sleeve valve grouting pipe, installing a sealing device at the end of the hole, and after the grouting quality of the karst cave is checked to be qualified, carrying out hole sealing and treatment on the karst cave. According to the method, 'head falling' and 'collapse' of shield construction can be prevented, excessive ground surface settlement or collapse accidents can be prevented, post-construction settlement difference is reduced, and operation safety is met.
本发明公开了一种地铁基坑深埋溶洞处理方法，涉及基坑溶洞施工领域，包括步骤如下：S1：施工准备工作，掌握了解施工区域的岩溶注浆工程概况，做好施工的场地平整、测量放线以及沉降观测桩布设；S2：进行工艺试验，确定溶洞的填充材料、注浆材料以及注浆材料的配比参数，选择合适的填充材料，并且制备注浆料；S3：钻孔施工，对溶洞进行施工探边来确定溶洞的类型和孔洞的位置；S4：注浆施工；S5：封孔，清洗袖阀注浆管，对孔洞的端部安装封口装置，在对溶洞的注浆质量检查合格之后，进行溶洞的封孔及处理。该方法能够防止盾构施工的“栽头”和“陷落”，能够防止地表沉降过大或者坍塌事故的发生，降低工后沉降差异，满足运营安全。
Subway foundation pit deep-buried karst cave treatment method
The invention discloses a subway foundation pit deep-buried karst cave treatment method, and relates to the field of foundation pit karst cave construction. The treatment method comprises the following steps: S1, carrying out construction preparation work, specifically, mastering and knowing the karst grouting project general situation of a construction area, and carrying out construction site leveling, surveying and setting out and settlement observation pile arrangement; S2, carrying out a process test, determining a filling material and a grouting material of the karst cave and proportioning parameters of the grouting material, selecting a proper filling material, and preparing grouting slurry; S3, carrying out drilling construction, and carrying out construction edge detection on the karst cave to determine the type of the karst cave and the position of a hole; S4, carrying out grouting construction; and S5, carrying out hole sealing, specifically, cleaning a sleeve valve grouting pipe, installing a sealing device at the end of the hole, and after the grouting quality of the karst cave is checked to be qualified, carrying out hole sealing and treatment on the karst cave. According to the method, 'head falling' and 'collapse' of shield construction can be prevented, excessive ground surface settlement or collapse accidents can be prevented, post-construction settlement difference is reduced, and operation safety is met.
本发明公开了一种地铁基坑深埋溶洞处理方法，涉及基坑溶洞施工领域，包括步骤如下：S1：施工准备工作，掌握了解施工区域的岩溶注浆工程概况，做好施工的场地平整、测量放线以及沉降观测桩布设；S2：进行工艺试验，确定溶洞的填充材料、注浆材料以及注浆材料的配比参数，选择合适的填充材料，并且制备注浆料；S3：钻孔施工，对溶洞进行施工探边来确定溶洞的类型和孔洞的位置；S4：注浆施工；S5：封孔，清洗袖阀注浆管，对孔洞的端部安装封口装置，在对溶洞的注浆质量检查合格之后，进行溶洞的封孔及处理。该方法能够防止盾构施工的“栽头”和“陷落”，能够防止地表沉降过大或者坍塌事故的发生，降低工后沉降差异，满足运营安全。
Subway foundation pit deep-buried karst cave treatment method
一种地铁基坑深埋溶洞处理方法
JIANG ZHIBIN (Autor:in) / LIU HENGFU (Autor:in) / ZHAO ZHIQIANG (Autor:in) / LIU YUGUO (Autor:in) / LIU LEI (Autor:in) / CUI JIANQIANG (Autor:in) / HAN CHAOHAN (Autor:in) / LIU HUI (Autor:in) / YIN HAO (Autor:in) / GAO TIANPENG (Autor:in)
30.07.2021
Patent
Elektronische Ressource
Chinesisch
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