Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Limestone stratum freezing construction method
The limestone stratum freezing construction method comprises the steps that according to design requirements, freezing holes are formed, a karst cave is filled with grout, and a freezing pipe is put down after a down-the-hole hammer drills holes; the freezing system is used for freezing a to-be-constructed area through a freezing pipe to form a freezing wall; the construction area is excavated, a concrete lining is poured, and grouting holes are reserved; freezing is stopped, the freezing pipe is blocked, and finally grouting is conducted on the grouting hole; in this way, when a karst cave is encountered in the hole forming process, the karst cave is effectively filled with grout, it is ensured that normal construction can be conducted through a freezing method, a freezing wall is formed through the freezing method, the safety of follow-up communication channel excavation is ensured, the excavated communication channel is poured in time to form a concrete lining, the collapse condition is effectively and well prevented, and the service life of the communication channel is prolonged. And finally, grouting is performed through the grouting holes to fill a gap between the concrete lining and the stratum, so that the stability is further effectively improved.
本发明涉及一种灰岩地层冻结施工方法，根据设计要求进行冻结孔的开孔，对溶洞进行浆液填充，潜孔锤钻孔后下放冻结管；冻结系统通过冻结管对需要施工区域进行冻结形成冻结壁；对施工区域进行开挖，浇筑混凝土内衬,预留注浆孔；停止冻结，对冻结管进行封堵，最后对注浆孔进行注浆；这样在在开孔的过程中遇到溶洞时，通过浆液对其进行有效填充，确保冻结法可以正常施工，采用冻结法的方式形成冻结壁，确保后续联络通道开挖的安全性，而且开挖后的联络通道内及时浇注形成混凝土内衬，有效良好防止坍塌的情况，最后通过注浆孔注浆用于填充混凝土内衬与地层之间空隙，有效进一步提高稳固性。
Limestone stratum freezing construction method
The limestone stratum freezing construction method comprises the steps that according to design requirements, freezing holes are formed, a karst cave is filled with grout, and a freezing pipe is put down after a down-the-hole hammer drills holes; the freezing system is used for freezing a to-be-constructed area through a freezing pipe to form a freezing wall; the construction area is excavated, a concrete lining is poured, and grouting holes are reserved; freezing is stopped, the freezing pipe is blocked, and finally grouting is conducted on the grouting hole; in this way, when a karst cave is encountered in the hole forming process, the karst cave is effectively filled with grout, it is ensured that normal construction can be conducted through a freezing method, a freezing wall is formed through the freezing method, the safety of follow-up communication channel excavation is ensured, the excavated communication channel is poured in time to form a concrete lining, the collapse condition is effectively and well prevented, and the service life of the communication channel is prolonged. And finally, grouting is performed through the grouting holes to fill a gap between the concrete lining and the stratum, so that the stability is further effectively improved.
本发明涉及一种灰岩地层冻结施工方法，根据设计要求进行冻结孔的开孔，对溶洞进行浆液填充，潜孔锤钻孔后下放冻结管；冻结系统通过冻结管对需要施工区域进行冻结形成冻结壁；对施工区域进行开挖，浇筑混凝土内衬,预留注浆孔；停止冻结，对冻结管进行封堵，最后对注浆孔进行注浆；这样在在开孔的过程中遇到溶洞时，通过浆液对其进行有效填充，确保冻结法可以正常施工，采用冻结法的方式形成冻结壁，确保后续联络通道开挖的安全性，而且开挖后的联络通道内及时浇注形成混凝土内衬，有效良好防止坍塌的情况，最后通过注浆孔注浆用于填充混凝土内衬与地层之间空隙，有效进一步提高稳固性。
Limestone stratum freezing construction method
灰岩地层冻结施工方法
YANG PEIJIAN (Autor:in) / XING GUOHENG (Autor:in) / JIN JIANMIN (Autor:in) / LEI YUANLIANG (Autor:in)
01.03.2022
Patent
Elektronische Ressource
Chinesisch
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