Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for aeolian sand stratum
The invention provides a tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for an aeolian sand stratum. The tunnel advanced horizontal jet grouting pile drill rod auxiliary structure comprises a fixing base formed on the periphery of a drill rod, blocking devices hinged to the fixing base, locking devices arranged on sliding rails and blocking cloth connected between every two adjacent blocking devices. The blocking device comprises a plurality of blocking split bodies which are nested with one another; the locking device comprises a swing rod, a locking rod and a locking spring. According to the tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for the aeolian sand stratum, when a drill bit part is grouted, a drill rod rotates to move towards the outer portion of a drill hole, a rolling wheel is rubbed by the side wall of the drill hole to move, a locking rod is compressed through a swing rod and a moving rod, a receding groove reaches the position corresponding to a stop block, the stop block rotates into the receding groove, and then the drill rod rotates to move towards the outer portion of the drill hole; the blocking split bodies can slide in the sliding rails, under the action of the elastic pieces, the blocking split bodies are opened, the blocking cloth is opened to be in an umbrella shape, the borne acting force is large, and loss of grouting materials is reduced.
本申请提供一种风积沙地层的隧道超前水平旋喷桩钻杆辅助结构，包括成型在钻杆外周的固定座、铰接在固定座上的阻挡装置、设置在滑轨上的锁定装置以及连接在相邻两个阻挡装置之间的阻挡布；阻挡装置包括多个相互嵌套的阻挡分体；锁定装置包括摆动杆、锁定杆和锁定弹簧。本发明提供的风积沙地层的隧道超前水平旋喷桩钻杆辅助结构，当钻头部位注浆时，钻杆旋转向钻孔外部移动，滚轮被钻孔的侧壁摩擦而移动，通过摆动杆和移动杆压缩锁定杆，使让位槽到达与阻挡块对应的位置，阻挡块旋转至让位槽内，使阻挡分体可以在滑轨内滑动，在弹性件的作用下，打开各个阻挡分体，阻挡布被打开成伞形，承受作用力大，减少注浆料的流失。
Tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for aeolian sand stratum
The invention provides a tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for an aeolian sand stratum. The tunnel advanced horizontal jet grouting pile drill rod auxiliary structure comprises a fixing base formed on the periphery of a drill rod, blocking devices hinged to the fixing base, locking devices arranged on sliding rails and blocking cloth connected between every two adjacent blocking devices. The blocking device comprises a plurality of blocking split bodies which are nested with one another; the locking device comprises a swing rod, a locking rod and a locking spring. According to the tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for the aeolian sand stratum, when a drill bit part is grouted, a drill rod rotates to move towards the outer portion of a drill hole, a rolling wheel is rubbed by the side wall of the drill hole to move, a locking rod is compressed through a swing rod and a moving rod, a receding groove reaches the position corresponding to a stop block, the stop block rotates into the receding groove, and then the drill rod rotates to move towards the outer portion of the drill hole; the blocking split bodies can slide in the sliding rails, under the action of the elastic pieces, the blocking split bodies are opened, the blocking cloth is opened to be in an umbrella shape, the borne acting force is large, and loss of grouting materials is reduced.
本申请提供一种风积沙地层的隧道超前水平旋喷桩钻杆辅助结构，包括成型在钻杆外周的固定座、铰接在固定座上的阻挡装置、设置在滑轨上的锁定装置以及连接在相邻两个阻挡装置之间的阻挡布；阻挡装置包括多个相互嵌套的阻挡分体；锁定装置包括摆动杆、锁定杆和锁定弹簧。本发明提供的风积沙地层的隧道超前水平旋喷桩钻杆辅助结构，当钻头部位注浆时，钻杆旋转向钻孔外部移动，滚轮被钻孔的侧壁摩擦而移动，通过摆动杆和移动杆压缩锁定杆，使让位槽到达与阻挡块对应的位置，阻挡块旋转至让位槽内，使阻挡分体可以在滑轨内滑动，在弹性件的作用下，打开各个阻挡分体，阻挡布被打开成伞形，承受作用力大，减少注浆料的流失。
Tunnel advanced horizontal jet grouting pile drill rod auxiliary structure for aeolian sand stratum
一种风积沙地层的隧道超前水平旋喷桩钻杆辅助结构
SONG FENGBO (Autor:in) / JI SHUAIKE (Autor:in) / WU YANJUN (Autor:in) / XU SHUANG (Autor:in) / HU HUIYAO (Autor:in) / LIU XIAOCHEN (Autor:in) / DING FENG (Autor:in) / LYU ZHIGUO (Autor:in) / DENG YANHUI (Autor:in) / BAI JUNHONG (Autor:in)
31.12.2024
Patent
Elektronische Ressource
Chinesisch
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