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A platform for research: civil engineering, architecture and urbanism
Jacking pipe reverse recovery construction method
The invention provides a jacking pipe reverse recovery construction method, and relates to the field of jacking pipe recovery of a jacking pipe heading machine. The jacking pipe reverse recovery construction method comprises the following steps that a stress shoulder pole is transversely arranged in a working well and connected with I-shaped steel through welding to form a reaction frame; a jack is arranged on the reaction frame, and a jacking pipe is reversely pulled backwards and recovered through the jack; in the initial stage of jacking pipe reverse recovery, a deviation rectifying oil cylinder of the jacking pipe heading machine is synchronously started to assist reverse recovery; in the jacking pipe reverse recovery process, grouting reinforcement is conducted through an inner ring water channel of the jacking pipe heading machine and a vertical shaft type core geological exploration drilling machine, and sedimentation of a soil layer above a rail is controllable; in the jacking pipe reverse recovery process, thixotropic slurry is synchronously injected outwards to the outer walls of pipe joints through the jacking pipe heading machine, and the frictional resistance of a soil body in the recovery process is reduced; and all the pipe joints of the jacking pipe are hoisted out one by one till a machine head retreats, and a hole is blocked. The jacking pipe reverse recovery construction method overcomes the various defects that a traditional jacking pipe transformation construction method is poor in effect, high in risk, long in construction period and the like.
一种顶管逆向回收施工方法，涉及顶管掘进机顶管回收领域，包括以下步骤：在工作井内横置受力扁担，通过焊接使其与工字钢相连接，形成反力架；在所述反力架设置千斤顶，通过千斤顶对顶管进行逆向后拉回收；顶管逆向回收的初始阶段，同步启动顶管掘进机的纠偏油缸，辅助逆向回收；顶管逆向回收过程中，通过顶管掘进机内环水道与立轴式岩心地质勘探钻机进行注浆加固，确保轨道上方土层的沉降可控；顶管逆向回收过程中，顶管掘进机向管节外壁同步向外压注触变泥浆，减少回收过程中土体的摩阻力；顶管的每节管节一一吊出，直至机头退出，对洞口进行封堵，本发明解决传统顶管改造施工法效果差、风险大、工期长等多种弊端。
Jacking pipe reverse recovery construction method
The invention provides a jacking pipe reverse recovery construction method, and relates to the field of jacking pipe recovery of a jacking pipe heading machine. The jacking pipe reverse recovery construction method comprises the following steps that a stress shoulder pole is transversely arranged in a working well and connected with I-shaped steel through welding to form a reaction frame; a jack is arranged on the reaction frame, and a jacking pipe is reversely pulled backwards and recovered through the jack; in the initial stage of jacking pipe reverse recovery, a deviation rectifying oil cylinder of the jacking pipe heading machine is synchronously started to assist reverse recovery; in the jacking pipe reverse recovery process, grouting reinforcement is conducted through an inner ring water channel of the jacking pipe heading machine and a vertical shaft type core geological exploration drilling machine, and sedimentation of a soil layer above a rail is controllable; in the jacking pipe reverse recovery process, thixotropic slurry is synchronously injected outwards to the outer walls of pipe joints through the jacking pipe heading machine, and the frictional resistance of a soil body in the recovery process is reduced; and all the pipe joints of the jacking pipe are hoisted out one by one till a machine head retreats, and a hole is blocked. The jacking pipe reverse recovery construction method overcomes the various defects that a traditional jacking pipe transformation construction method is poor in effect, high in risk, long in construction period and the like.
一种顶管逆向回收施工方法，涉及顶管掘进机顶管回收领域，包括以下步骤：在工作井内横置受力扁担，通过焊接使其与工字钢相连接，形成反力架；在所述反力架设置千斤顶，通过千斤顶对顶管进行逆向后拉回收；顶管逆向回收的初始阶段，同步启动顶管掘进机的纠偏油缸，辅助逆向回收；顶管逆向回收过程中，通过顶管掘进机内环水道与立轴式岩心地质勘探钻机进行注浆加固，确保轨道上方土层的沉降可控；顶管逆向回收过程中，顶管掘进机向管节外壁同步向外压注触变泥浆，减少回收过程中土体的摩阻力；顶管的每节管节一一吊出，直至机头退出，对洞口进行封堵，本发明解决传统顶管改造施工法效果差、风险大、工期长等多种弊端。
Jacking pipe reverse recovery construction method
一种顶管逆向回收施工方法
LUO CHUANZHOU (author) / ZHAO XIAOLANG (author) / HU JISHENG (author) / DENG HAILIN (author) / LI ZHIJING (author)
2021-06-18
Patent
Electronic Resource
Chinese
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