The challenges in Mivan shuttering for concreting through boom pumps or tower cranes include:

1. Concrete Placement Coordination: Coordinating the operation of the boom pump or tower crane with the concreting process to ensure a steady and efficient flow of concrete to the Mivan formwork, especially in tall structures.

2. Pumping Distance and Height: Managing the pumping distance and vertical height, especially in high-rise construction, requires careful selection and positioning of the equipment to ensure consistent concrete flow without segregation or loss of workability.

3. Concrete Pumping Pressure: Controlling the pumping pressure to avoid blowouts, leaks, or blockages while maintaining uniform concrete flow and compaction within the Mivan formwork.

4. Formwork Support and Stability: Ensuring that the Mivan formwork is adequately supported and braced to withstand the hydraulic pressure from the concrete placement process.

5. Concrete Flow Control: Managing the speed and volume of concrete flow to prevent overfilling or underfilling of formwork sections, which can impact the quality and integrity of the concrete structure.

6. Safety Considerations: Adhering to strict safety protocols during the operation of boom pumps or tower cranes to prevent accidents and ensure the well-being of the construction workforce.

Successfully addressing these challenges requires effective communication, coordination between the concrete pumping team and construction crew, proper equipment selection, and adherence to safety guidelines when using boom pumps or tower cranes for concreting with Mivan shuttering.