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Estimation of mechanical parameters of Tongji-1 lunar soil simulant based on cone penetration test

Jiang, M. J., Zhang, N., Cui, L., Xi, B. L., Lei, H. Y. and Wang, X. X. (2019) Estimation of mechanical parameters of Tongji-1 lunar soil simulant based on cone penetration test European Journal of Environmental and Civil Engineering. pp. 1-16.

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Abstract

The mechanical properties of the lunar soil, e.g. the bearing capacity and the deformation modulus, are of great importance for the design of the foundations of permanent lunar outposts. To measure these two parameters, the plate loading test (PLT) is a reliable and the most popular method on the Earth, but is not directly applicable on the lunar surface due to the difficulties in setting up the test equipment. An alternative and indirect method is the cone penetration test (CPT) mainly due to its simplicity in operation. The current study concentrates on the relationships between the two mechanical parameters obtained from PLTs and the penetration resistance obtained from CPTs. Both PLTs and CPTs were carried out on Tongji-1 lunar soil simulant (TJ-1 simulant) in a calibration chamber to establish their relationships and then on a large-scale man-made ground to validate the relationships. The test results show that: the link between the acceptable bearing capacity q<sub>a</sub>, the deformation modulus E<sub>0</sub> and the average penetration resistance q<sub>avg</sub> was established and validated as: q<sub>a</sub> = 0.25/D<sup>0.63</sup>q<sub>avg</sub> and E<sub>0</sub> = 7.16q<sub>avg<sub> for TJ-1 simulant ground. They can be used directly in the foundation design for lunar outposts.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
NameEmailORCID
Jiang, M. J.
Zhang, N.
Cui, L.L.Cui@surrey.ac.uk
Xi, B. L.
Lei, H. Y.
Wang, X. X.
Date : 17 October 2019
DOI : 10.1080/19648189.2019.1674697
Copyright Disclaimer : © 2019 Taylor & Francis
Uncontrolled Keywords : Tongji-1 lunar soil simulant; Bearing capacity; Deformation modulus; CPT; PLT
Depositing User : Clive Harris
Date Deposited : 17 Oct 2019 15:35
Last Modified : 17 Oct 2019 15:35
URI: http://epubs.surrey.ac.uk/id/eprint/852952

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