Investigations of Muons in EAS with KASCADE-Grande

KASCADE-Grande is a multi detector setup for the investigation of extensive air showers in the primary energy range of the knee including energies around the so-called second knee. With the data of the 700 ⋅ 700 m2 large Grande array shower core position, shower direction, and the total number of electrons are reconstructed for events with primary energy above 1016.5 eV. In addition, the experiment consists of different detector setups for measuring muons at various energy thresholds between 230 MeV and 2.4 GeV. These informations are used to estimate the muon shower size as well as observables sensitive to differences of hadronic interaction models embedded in shower simulation codes. We report the goals and the status of the different muon measurements at KASCADE-Grande.