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A platform for research: civil engineering, architecture and urbanism
Anti-drag jacking construction structure and construction method for super-large-section box culvert passing through road underneath
The invention relates to a resistance-reducing jacking construction structure and method for a super-large-section box culvert underneath passing a highway. The structure comprises a sliding plate, and guide piers are arranged on the two sides of the sliding plate and used for guiding in the jacking process. And a back beam is arranged at one end of the sliding plate, is matched with a jacking pipe and a jack and is used for pushing the box culvert to jack. A broken stone hardcore is laid below the sliding plate, ground anchor beams are poured in the sliding plate, and structural stability is enhanced. Guide wheels capable of being transversely adjusted are arranged in the guide piers so as to adapt to box culverts with different widths. A multi-stage step surface is formed at the bottom of the end face of the box culvert and matched with multiple sets of jacks to achieve single-time long-distance jacking. A paraffin layer, a talcum powder layer and a plastic film are laid on the top face of the sliding plate to reduce jacking friction force. The top of the box culvert is provided with a resistance reduction steel plate, the bottom of the advancing end is provided with a reserved grouting channel, slurry is injected through the reserved grouting channel, and the jacking resistance is further reduced. Friction resistance in the jacking process can be effectively reduced, guiding precision is improved, and safety and high efficiency of construction are guaranteed.
本发明涉及一种下穿公路的超大断面箱涵减阻顶进施工结构及施工方法。结构包括滑板，滑板两侧设有导向墩，用于顶进过程中的导向。滑板一端设有后背梁，后背梁配合顶管、千斤顶，用于推动箱涵顶进。滑板下方铺设碎石垫层，滑板内浇筑地锚梁，增强结构稳定性。导向墩内设有可横向调节的导轮，以适应不同宽度的箱涵。箱涵端面底部形成多级台阶面，配合多组千斤顶，实现单次长距顶进。滑板顶面铺设石蜡层、滑石粉层及塑料薄膜，减少顶进摩擦力。箱涵顶部设有减阻钢板，前进端底部设有预留注浆通道，通过预留注浆通道注入泥浆，进一步减少顶进阻力。本发明能够有效减小顶进过程中的摩擦阻力，提高导向精度，确保施工的安全性和高效性。
Anti-drag jacking construction structure and construction method for super-large-section box culvert passing through road underneath
The invention relates to a resistance-reducing jacking construction structure and method for a super-large-section box culvert underneath passing a highway. The structure comprises a sliding plate, and guide piers are arranged on the two sides of the sliding plate and used for guiding in the jacking process. And a back beam is arranged at one end of the sliding plate, is matched with a jacking pipe and a jack and is used for pushing the box culvert to jack. A broken stone hardcore is laid below the sliding plate, ground anchor beams are poured in the sliding plate, and structural stability is enhanced. Guide wheels capable of being transversely adjusted are arranged in the guide piers so as to adapt to box culverts with different widths. A multi-stage step surface is formed at the bottom of the end face of the box culvert and matched with multiple sets of jacks to achieve single-time long-distance jacking. A paraffin layer, a talcum powder layer and a plastic film are laid on the top face of the sliding plate to reduce jacking friction force. The top of the box culvert is provided with a resistance reduction steel plate, the bottom of the advancing end is provided with a reserved grouting channel, slurry is injected through the reserved grouting channel, and the jacking resistance is further reduced. Friction resistance in the jacking process can be effectively reduced, guiding precision is improved, and safety and high efficiency of construction are guaranteed.
本发明涉及一种下穿公路的超大断面箱涵减阻顶进施工结构及施工方法。结构包括滑板，滑板两侧设有导向墩，用于顶进过程中的导向。滑板一端设有后背梁，后背梁配合顶管、千斤顶，用于推动箱涵顶进。滑板下方铺设碎石垫层，滑板内浇筑地锚梁，增强结构稳定性。导向墩内设有可横向调节的导轮，以适应不同宽度的箱涵。箱涵端面底部形成多级台阶面，配合多组千斤顶，实现单次长距顶进。滑板顶面铺设石蜡层、滑石粉层及塑料薄膜，减少顶进摩擦力。箱涵顶部设有减阻钢板，前进端底部设有预留注浆通道，通过预留注浆通道注入泥浆，进一步减少顶进阻力。本发明能够有效减小顶进过程中的摩擦阻力，提高导向精度，确保施工的安全性和高效性。
Anti-drag jacking construction structure and construction method for super-large-section box culvert passing through road underneath
下穿公路的超大断面箱涵减阻顶进施工结构及施工方法
XIONG JIANWU (author) / LI XIAOJING (author) / WANG JIAN (author) / YI XIAOJUN (author) / YU XIN (author) / ZHANG MINGZHE (author) / GUO QIANG (author) / MA HAOXI (author) / LI BO (author) / WANG YONG (author)
2024-11-15
Patent
Electronic Resource
Chinese
IPC:
E21D
SHAFTS
,
Schächte
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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