Safekey Engineering Technology (zhengzhou), Ltd.

Bei Zhang

Fuming Wang

Yanhui Zhong

Xiaolong Li

Xianfeng Zhao

Yongli Chen

Yanhui Pan

Chengchao Guo

Mingsheng Shi

Hongliang Chen

A grouting pipe with a vibration function includes: a grouting pipe body provided with a hydraulic control structure, a vibration structure and a grouting hole control structure; wherein the vibration structure is rotatably arranged inside the grouting pipe body, and the hydraulic control structure is provided outside the grouting pipe body; the grouting hole control structure is provided on an internal wall of the grouting pipe body, and the hydraulic control structure is connected to the grouting hole control structure through a first hydraulic pipe. The grouting pipe solves the technical problems that conventional grouting pipes may be blocked by sandy soil during a press-in process, and it is difficult for the slurry to diffuse.

Grouting pipe with vibration function

A vibratory grouting drilling rig includes: a drilling rig bracket, a moving bracket, and a driving mechanism mounted on the drilling rig bracket for driving the moving bracket to move; wherein a working bracket is slidingly mounted on the moving bracket, and a sliding direction of the working bracket is identical to a moving direction of the moving bracket; a vibratory grouting rod and a drilling rod are mounted on the working bracket; multiple flexible connectors are connected between the working bracket and the drilling rig bracket, and are arranged along the moving direction of the moving bracket; the flexible connectors go around an end of the moving bracket and are connected to the drilling rig bracket. When the moving bracket moves, the flexible connectors pull the working bracket to move relative to the moving bracket, thus providing extra drilling force.

Vibratory grouting drilling rig with auxiliary moving mechanism

Kettle nozzle

A polymer composite grouting method for blocking leaking and sand inrush of underground pipeline includes steps of: (1) determining a leaking and sand inrush position of an underground pipeline; (2) drilling a plurality of grouting holes in a ground surface; (3) placing two grouting pipes into each of the grouting holes, binding a film bag at a bottom of one of the grouting pipes; (4) injecting a polymer grouting material via one of the grouting pipes to form a polymer sand stabilizing body; (5) extruding water to accumulated in the pipeline; (6) installing a plurality of geotextile bags at the pipeline section displacement; (7) injecting the polymer material into the geotextile bags for blocking the leakage; and (8) filling the pumping area out of the pipeline. The present invention provides a practical technical measure to treat the leaking and sand inrush of the underground pipeline under complicated geological condition.

Polymer composite grouting method for blocking leaking and sand inrush of underground pipelines

A polymer grouting method for constructing a vertical supporting system, includes following steps of: (1) structuring an integrated polymer water-blocking panel; (2) constructing a polymer coping of a polymer vertical supporting system; (3) constructing polymer anchors on the integrated polymer water-blocking panel; (4) processing constructing connection of the polymer anchors; and (5) excavating vertically by layer in turn, wherein step (3) and step (4) is repeated until a construction of the polymer vertical supporting system reaches a projected depth, and then the construction of the polymer vertical supporting system is completed. The polymer vertical supporting system constructed according to the present invention has advantages, such as convenience, lightness, high tenacity, economy, and lasting long. The slots of foundation pits, side slopes, municipal pipelines, etc. can be excavated vertically fast by adopting the present invention.

Polymer grouting method for constructing vertical supporting system

Growing community of inventors

Henan, China

Bei Zhang