Zhengzhou University

Welead Infrastructure Engineering Technology (zhengzhou), Ltd.

Infrastructure Renewal Institute of Southern China

Safekey Engineering Technology (zhengzhou), Ltd.

Henan Institute of Sun Yat-sen University

Yingli Wang

Fuming Wang

Peng Zhao

Xianfeng Zhao

Yanhui Pan

Hongyuan Fang

Chengchao Guo

Mingsheng Shi

Binghan Xue

Chaojie Wang

Yanjie Hao

Xijun Zhang

Yangyang Xia

A method for stabilizing and lifting a channel board by underwater grouting includes (A) when the channel board is damaged, removing the damaged channel board, cleaning and leveling a gravel layer under the damaged channel board, placing an undamaged channel board installed with first grouting pipes and a second grouting pipe on the gravel layer, wherein multiple geotextile bags are respectively bound to the first grouting pipes; when the channel board is subsided, installing first grouting pipes and a second grouting pipe into first grouting holes and a second grouting hole, respectively; (B) performing a first polymer grouting through the first grouting pipes, and performing a second polymer grouting through the second grouting pipe; (C) cutting off a part of the first grouting pipes the second grouting pipe which are exposed to the channel board, and leveling incisions; and (D) removing excess polymer left on the channel board.

Method for stabilizing and lifting channel boards by underwater grouting

A trough plate for constructing a locked polymer anti-seepage wall includes a plate body, a guide tube, a grouting pipe and an anti-blocking head. A construction method of the locked polymer anti-seepage wall includes the steps of positioning an Ntrough plate and then pressing the Ntrough plate into ground, wherein N is a natural number larger than and equal to 1; engaging an (N+1)trough plate with the Ntrough plate, and then pressing the (N+1)trough plate into the ground; connecting a grouting pipe of the Ntrough plate with a grouting machine, pulling out the Ntrough plate, and simultaneously grouting through the grouting pipe of the Ntrough plate by the grouting machine; and repeating the steps (B) and (C) till the locked polymer anti-seepage wall is completed, wherein the steps (B) and (C) are repeated every time, N is automatically increased by 1.

Trough plate for constructing locked polymer anti-seepage wall and construction method of locked polymer anti-seepage wall

A thin-slotting lifting synchronous grouting device and its usage method are provided. The device includes a hollow force-bearing column through which a feeding pipe passes; wherein: left and right cutting plates are respectively fixedly arranged on each side of the hollow force-bearing column; a left connecting plate is fixedly arranged on an outside of the left cutting plate; a right guiding column is fixedly arranged on an outside of the right cutting plate; center lines of the left connecting plate, the right guiding column and the hollow force-bearing column are in a same plane; a top end of to the feeding pipe is connected to a grouting device, and a bottom end is connected to a spraying device; a spraying nozzle of the spraying device stretches out along the hollow force-bearing column; and a lower end of the hollow force-bearing column is connected with a disposable conical head.

Thin-slotting lifting synchronous grouting device and its usage method

A track-type shotcrete integrated system includes: a proportioner working bin, a storage bin, a power bin, and load-bearing legs, wherein bottom sections of the load-bearing legs are equipped with a track chassis for moving, and the track chassis is electrically connected to a track controller; the storage bin contains a storage tank I and a storage tank II for storing different raw materials; a feed pump I is installed on a top of the storage tank I, and a feed pump II is installed on a top of the storage tank II; inlet pipes of the feed pump I and the feed pump II insert into the storage tank I and storage tank II respectively, and outlet pipes of the feed pump I and the feed pump II are connected to a feed pipe I and a feed pipe II respectively.

Track-type jet grouting integrated system

Growing community of inventors

Henan, China

Yingli Wang