Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for achieving rotary excavating karst cave treatment through landmine type extrusion drill bit in karst development area
The invention relates to the technical field of rotary excavating cast-in-place pile karst cave treatment, and discloses a method for achieving rotary excavating karst cave treatment through a landmine type extrusion drill bit in a karst development area. The method comprises the following construction steps that S1, after rotary excavating drilling is carried out to meet with karst caves, drilling is topped in time; S2, according to the karst cave distribution condition, clay and flag backfilling is carried out; S3, a rotary excavating drilling machine is checked, the landmine type extrusiondrill bit is replaced, the machine enters a hole again, and slow and pressurization drilling is carried out; S4, backfilling and extrusion are carried out repeatedly till new hole walls are formed onkarst cave segments; and S5, after karst cave treatment is finished, the rotary excavating drilling machine replaces the drill bit with a normal rotary excavating drilling bit to continue drilling. Karst caves are filled with flag and clay mixtures, new protection wall structures are formed in holes through repeated backfilling and extrusion operation, it is ensured that the karst cave segments are filled and are stable, the rotary excavating drilling bit is adopted through replacement to continue drilling, through repeated backfilling and extrusion treatment, karst caves can be effectively subjected to filling treatment, hole collapsing and mud losses are avoided, and drilling and hole forming of the next step are ensured.
本发明涉及旋挖灌注桩溶洞处理的技术领域，公开了岩溶发育区旋挖地雷式挤压钻头溶洞处理方法，包括以下施工步骤：S1、旋挖钻进遇溶洞后，及时进行停钻；S2、根据溶洞分布情况，进行粘土和片石回填；S3、检查旋挖钻机并更换地雷式挤压钻头，再入孔，慢速、加压钻进；S4、重复进行回填和挤压，直至溶洞段形成新的孔壁为止；S5、溶洞处理完毕后，旋挖钻机更换正常的旋挖钻进钻头，继续进行钻进；片石和粘土混合物充填进入溶洞内，通过反复多次的回填和挤压操作，起到孔内起到形成新的护壁结构，确保溶洞段被充填和稳定，再更换回旋挖钻进钻头继续钻孔，通过反复回填、挤压处理，可有效的对溶洞进行充填处理，防止塌孔和泥浆漏失，确保下一步钻进成孔。
Method for achieving rotary excavating karst cave treatment through landmine type extrusion drill bit in karst development area
The invention relates to the technical field of rotary excavating cast-in-place pile karst cave treatment, and discloses a method for achieving rotary excavating karst cave treatment through a landmine type extrusion drill bit in a karst development area. The method comprises the following construction steps that S1, after rotary excavating drilling is carried out to meet with karst caves, drilling is topped in time; S2, according to the karst cave distribution condition, clay and flag backfilling is carried out; S3, a rotary excavating drilling machine is checked, the landmine type extrusiondrill bit is replaced, the machine enters a hole again, and slow and pressurization drilling is carried out; S4, backfilling and extrusion are carried out repeatedly till new hole walls are formed onkarst cave segments; and S5, after karst cave treatment is finished, the rotary excavating drilling machine replaces the drill bit with a normal rotary excavating drilling bit to continue drilling. Karst caves are filled with flag and clay mixtures, new protection wall structures are formed in holes through repeated backfilling and extrusion operation, it is ensured that the karst cave segments are filled and are stable, the rotary excavating drilling bit is adopted through replacement to continue drilling, through repeated backfilling and extrusion treatment, karst caves can be effectively subjected to filling treatment, hole collapsing and mud losses are avoided, and drilling and hole forming of the next step are ensured.
本发明涉及旋挖灌注桩溶洞处理的技术领域，公开了岩溶发育区旋挖地雷式挤压钻头溶洞处理方法，包括以下施工步骤：S1、旋挖钻进遇溶洞后，及时进行停钻；S2、根据溶洞分布情况，进行粘土和片石回填；S3、检查旋挖钻机并更换地雷式挤压钻头，再入孔，慢速、加压钻进；S4、重复进行回填和挤压，直至溶洞段形成新的孔壁为止；S5、溶洞处理完毕后，旋挖钻机更换正常的旋挖钻进钻头，继续进行钻进；片石和粘土混合物充填进入溶洞内，通过反复多次的回填和挤压操作，起到孔内起到形成新的护壁结构，确保溶洞段被充填和稳定，再更换回旋挖钻进钻头继续钻孔，通过反复回填、挤压处理，可有效的对溶洞进行充填处理，防止塌孔和泥浆漏失，确保下一步钻进成孔。
Method for achieving rotary excavating karst cave treatment through landmine type extrusion drill bit in karst development area
岩溶发育区旋挖地雷式挤压钻头溶洞处理方法
LEI BIN (Autor:in) / JI JIANFENG (Autor:in) / CHEN XIAOHUI (Autor:in) / TONG XIN (Autor:in) / LEI FAN (Autor:in) / HONG YUJIAO (Autor:in) / LIU HAOXIAN (Autor:in) / LIN ZHIHAO (Autor:in)
30.10.2020
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024
Water and soil loss prevention rotary excavating pile construction method for karst cave dense area
| Europäisches Patentamt | 2024
Grouting treatment method and system for underwater karst cave in karst development area
| Europäisches Patentamt | 2021