Tag Archives: TBM

Mud Recycling Systems for TBM Projects

TBM Projects are very common during any countries’ infrastructure building. And the mud recycling systems are always requested during TBM projects. Similar as all other drillings, there is drilling media to be invited into drilling procedures, and the drilling media, which is also called drilling mud should to be recycled after work and to be returned to drilling after being separated by a mud recycling system.

2021.11.08 GNTBM-360 Separation Plant

Here are some of the functions of such a mud recycling system for TBM:

1. Such a mud recycling system can provide high-quality bentonite slurry required by shield tunneling construction to the closed chamber of the excavation face of work.

2. An efficient mud recycling system can make the specific gravity, viscosity and other technical indexes of the slurry in order to meet the requirements of forming mud film and stabilizing the excavation surface in the highly permeable sand layer.

3. A mud recycling system for TBM can help to transport the mixed mud formed by cutting soil and sand to the ground for separation and treatment, and then adjust and utilize the recovered mud.

4. The mud recycling system is used to support, stability and excavation surface soil. The shield tunnel face produces drilling mud balance effect with the help of mud pressure and the front earth pressure to effectively support the front soil.

5. The mud recycling system can also cool and lubricate cutting equipment such as cutter head and cutter head. It is kind of protection.

6. According to the different requirements of soil permeability coefficient, reasonably match the grade of mud particles.

GN Solids Control has been providing mud recycling systems for TBM contractors and projects for more than 15 years, and has gained rich experiences in designing and manufacturing. Among GN products, there are compact systems with 2 separating steps and complete systems with 3 separating steps. GN engineers can give more suitable suggestion based on your detailed information.

GNTBM-360 Slurry Separation Plant for Pipe Jacking Engineering Company

Pipe jacking is one kind of drilling works similar as Tunnel Bored projects, which need a pipe jacking machine to drill under the ground and the slurries generated from drilling shall be treated well before disposal.

2021.11.08 GNTBM-360 Separation Plant

For such projects, like for TBM projects, GN Solids Control has several optional solutions, including following:

1. An economic and compact mud unit GNMS-D series desanding units. This series are made of a double deck shaker and a desanding/desilter section and a catch tank. They have 2 steps for separation. A feeding pump is located on side of catch tank. It is flexible for its compact layout. GN has various capacities among 200GPM, 500GPM, 1000GPM and 1500GPM.

2. Self-contained mud systems GNMS-B series including a similar double deck shaker as the GNMS-D series including shaker and cyclones and cyclone feeding pump, and also a larger tank plus a mud mixing hopper. It can serve 2 functions: 2 step separation and mud mixing. It also ranges from 200GPM to 1000GPM.

3. GNTBM series slurry plant, as this client purchased from GN. They have 3 steps separation, shale shaker, desander and desilter, equipped by 2 large slurry pumps for feeding, and a compact design with 2 layers. There are 3 models for option, the 240cbm/hr, 360cbm/hr and 500cbm/hr, especially for the TMB projects.

Those above 3 kinds of mud recycling units are widely used in many countries, clients and end users are buying from GN directly, and also, lots of Chinese contractors are bringing GN’s equipment to all over the world. They are happy with the good performance and reliable service from GN professional team.

If you have similar queries or need more information about GN products, welcome to contact GN sales team directly by sending email to renee@gnsolidscontrol.com.