An apparatus sometime referred to as a freeze pipe and methods of using these apparatus in ground freezing applications is provided. Ground freezing is a temporary ground support technique that is used extensively for groundwater control and ground stabilization in underground construction and deep excavations. The process involves circulating refrigerated liquids through a series of vertically disposed freeze pipes to freeze the ground creating a solid barrier that prevents water intrusion and provides structural support for excavation. The freeze pipes are directed to zone freeze pipes or the like, which cause the ground to freeze in selected segments along the pipe, also referred to as zones.

A desert greenhouse skeleton system and a control method thereof are provided. The desert greenhouse skeleton system includes a greenhouse skeleton including an above-ground skeleton and an underground skeleton detachably combined; freezers operatively attached to the underground skeleton, and the freezers are configured into multiple groups in an annular array manner, and at least partially placed in the sand layer; and a controller communicatively coupled to the freezers and configured to dynamically adjust the freezing parameters of the freezers based on a temperature of the sand layer and/or distribution positions of the freezers, so as to change the sand layer morphology corresponding to each freezers.

A desert greenhouse skeleton system and a control method thereof are provided. The desert greenhouse skeleton system includes a greenhouse skeleton including an above-ground skeleton and an underground skeleton detachably combined; freezers operatively attached to the underground skeleton, and the freezers are configured into multiple groups in an annular array manner, and at least partially placed in the sand layer; and a controller communicatively coupled to the freezers and configured to dynamically adjust the freezing parameters of the freezers based on a temperature of the sand layer and/or distribution positions of the freezers, so as to change the sand layer morphology corresponding to each freezers.

A desert greenhouse skeleton system and a control method thereof are provided. The desert greenhouse skeleton system includes a greenhouse skeleton including an above-ground skeleton and an underground skeleton detachably combined; freezers operatively attached to the underground skeleton, and the freezers are configured into multiple groups in an annular array manner, and at least partially placed in the sand layer; and a controller communicatively coupled to the freezers and configured to dynamically adjust the freezing parameters of the freezers based on a temperature of the sand layer and/or distribution positions of the freezers, so as to change the sand layer morphology corresponding to each freezers.

A desert greenhouse skeleton system and a control method thereof are provided. The desert greenhouse skeleton system includes a greenhouse skeleton including an above-ground skeleton and an underground skeleton detachably combined; freezers operatively attached to the underground skeleton, and the freezers are configured into multiple groups in an annular array manner, and at least partially placed in the sand layer; and a controller communicatively coupled to the freezers and configured to dynamically adjust the freezing parameters of the freezers based on a temperature of the sand layer and/or distribution positions of the freezers, so as to change the sand layer morphology corresponding to each freezers.