grout injection machine

Applications of the double-plunger injection system:
Tunneling and underground engineering: Shield tunneling synchronous grouting, pre-support grouting (pipe roofing), and backfill grouting behind tunnel linings; ensures precise control of surface settlement and supports uninterrupted, high-flow continuous operations.
Mining engineering: Underground rock strata water-blocking and reinforcement, and goaf (mined-out area) infill grouting; explosion-proof double-plunger systems operate safely in high-gas environments, significantly reducing the frequency of underground equipment maintenance.
Water conservancy and hydropower engineering: Dam foundation curtain grouting and dam body seepage-proofing/reinforcement; stable high-pressure output ensures grout penetrates fine rock fissures, enhancing the seepage-proof performance of dam foundations.
Specialized engineering: High-pressure jet grouting, precision chemical injection for oil and gas fields, micropile foundation anchoring grouting, and borehole wall stabilization/leak sealing; suitable for a wide range of high-precision, high-pressure injection applications.

An Injection Unit for Cementitious Grout is a specialized system designed to mix and inject cement-based grouts into soil, rock formations, concrete structures, or behind tunnel linings. These units are widely used in geotechnical engineering, tunneling, foundation repair, and structural reinforcement projects.

An Injection Grout Pump for Underground is a high-performance machine used to inject grout materials into the ground under pressure. These pumps are essential in underground construction, mining, tunneling, and infrastructure projects where ground stabilization, waterproofing, or structural reinforcement is required.

Injection grout plant (grouting plant/grouting equipment system) is an integrated equipment system for grout preparation and injection in geotechnical engineering, construction and geological disaster management. Its core functions, technical features and application scenarios are as follows:
Core functions and equipment composition
Grout preparation system
Double-shaft mixer: adopts variable frequency speed regulation technology to achieve accurate proportioning of raw materials such as cement, water glass, bentonite, etc. (proportioning accuracy ±1%) to ensure slurry uniformity.
High-speed pulping machine: through the action of centrifugal force (speed ≥1450r/min), the powder is quickly dissolved, and the preparation efficiency is increased by 40% compared with traditional equipment, which is suitable for ultra-fine cement-based slurry.
Automatic batching system: integrated with screw conveyor, electronic scale and PLC controller to realize automatic metering and transportation of raw materials and reduce manual intervention.
High-pressure injection system
Piston pump group: adopts three-cylinder single-acting reciprocating pump (such as SGB6-10 type), with an output pressure of more than 10MPa and a flow rate of 6-10L/s, supporting single-liquid slurry and double-liquid slurry (cement-water glass) injection.
Intelligent control system: real-time monitoring of grouting pressure, flow and cumulative grouting volume, automatic generation of construction records (in compliance with GB/T 50448-2015 specifications), and support for cloud data storage and traceability.
Explosion-proof design: For high-risk environments such as coal mines, the equipment is equipped with explosion-proof motors, intrinsically safe circuits and pressure relief valves to ensure construction safety.

The high-pressure grouting pump uses high-pressure injection technology to inject grouting materials (such as cement slurry, chemical slurry, etc.) into the formation to achieve reinforcement, waterproofing, anti-seepage and other purposes. It has the characteristics of high voltage, high efficiency, and stability, and is one of the indispensable important equipment in modern engineering construction.

A grout cement injection machine, also known as a cement grouting pump or injection pump, is a specialized construction tool designed specifically for injecting grout into cavities, cracks, or voids in concrete structures, soil, or rock formations. This equipment plays a vital role in strengthening, stabilizing, waterproofing, and repairing structures.