Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Subway pile foundation construction pre-grouting protection method and application thereof
The invention relates to a subway pile foundation construction pre-grouting protection method, which comprises the following steps that a, a leakage-proof curtain is constructed at the position of a karst development zone within the range of a pile foundation construction area, connection between the karst development zone and the outside is cut off, a sleeve valve pipe grouting method is adoptedfor treatment, and cement paste and water glass paste are adopted for double-liquid grouting; b, the interior of the leakage-proof curtain is treated through the sleeve valve pipe grouting method, andcement paste single-liquid grouting is adopted; and c, pile foundations are constructed in the leakage-proof curtain. The invention further relates to application of the subway pile foundation construction pre-grouting protection method. The subway pile foundation construction pre-grouting protection method is applied to a pile foundation construction area within the range of 20 m close to the outer side line of a subway structure and located in the karst development zone. The method needs a small working space, is suitable for places with dense people and large traffic flow such as downtownareas, small in influence on urban traffic, stable, reliable and high in safety, plays a certain role in isolating water to protect the structural stability of buildings and structures, and belongs tothe technical field of building construction.
涉及一种涉地铁桩基础施工预注浆保护方法，包括如下步骤：a.在桩基础施工区域范围内对岩溶发育带的部位施工防漏帷幕，切断岩溶发育带与外部的联系，采用袖阀管注浆法进行处理，且采用水泥浆和水玻璃浆双液注浆；b.防漏帷幕内部采用袖阀管注浆法进行处理，且采用水泥浆单液注浆；c.在防漏帷幕内部施工桩基础。还涉及一种涉地铁桩基础施工预注浆保护方法的应用，应用于临近地铁结构外边线20m范围内且地处岩溶发育地带的桩基础施工区域。本发明工作空间小，在闹市这样人员密集、车流量大的地方中较为适用，对城市交通影响小，稳定可靠，安全性高，且在隔绝水体保护建构筑物结构稳定性上起到一定作用，属于建筑施工技术领域。
Subway pile foundation construction pre-grouting protection method and application thereof
The invention relates to a subway pile foundation construction pre-grouting protection method, which comprises the following steps that a, a leakage-proof curtain is constructed at the position of a karst development zone within the range of a pile foundation construction area, connection between the karst development zone and the outside is cut off, a sleeve valve pipe grouting method is adoptedfor treatment, and cement paste and water glass paste are adopted for double-liquid grouting; b, the interior of the leakage-proof curtain is treated through the sleeve valve pipe grouting method, andcement paste single-liquid grouting is adopted; and c, pile foundations are constructed in the leakage-proof curtain. The invention further relates to application of the subway pile foundation construction pre-grouting protection method. The subway pile foundation construction pre-grouting protection method is applied to a pile foundation construction area within the range of 20 m close to the outer side line of a subway structure and located in the karst development zone. The method needs a small working space, is suitable for places with dense people and large traffic flow such as downtownareas, small in influence on urban traffic, stable, reliable and high in safety, plays a certain role in isolating water to protect the structural stability of buildings and structures, and belongs tothe technical field of building construction.
涉及一种涉地铁桩基础施工预注浆保护方法，包括如下步骤：a.在桩基础施工区域范围内对岩溶发育带的部位施工防漏帷幕，切断岩溶发育带与外部的联系，采用袖阀管注浆法进行处理，且采用水泥浆和水玻璃浆双液注浆；b.防漏帷幕内部采用袖阀管注浆法进行处理，且采用水泥浆单液注浆；c.在防漏帷幕内部施工桩基础。还涉及一种涉地铁桩基础施工预注浆保护方法的应用，应用于临近地铁结构外边线20m范围内且地处岩溶发育地带的桩基础施工区域。本发明工作空间小，在闹市这样人员密集、车流量大的地方中较为适用，对城市交通影响小，稳定可靠，安全性高，且在隔绝水体保护建构筑物结构稳定性上起到一定作用，属于建筑施工技术领域。
Subway pile foundation construction pre-grouting protection method and application thereof
一种涉地铁桩基础施工预注浆保护方法及其应用
YAN JUYING (Autor:in) / WU YUHUA (Autor:in) / LIU ZHENLI (Autor:in) / ZHU FEI (Autor:in) / LIU CHUANDA (Autor:in) / CHEN HONGJUN (Autor:in) / WANG ZHENGKAI (Autor:in) / SUN MING (Autor:in) / PAN HUIHUI (Autor:in)
20.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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