CN-122013762-A - Self-adaptive hierarchical energy consumption type rock wall anchoring system and folded inflatable living cabin

CN122013762ACN 122013762 ACN122013762 ACN 122013762ACN-122013762-A

Abstract

The application relates to a self-adaptive graded energy consumption type rock wall anchoring system and a folded and unfolded inflatable living cabin, the device comprises an anchoring assembly, a buffer assembly, a inhaul cable and a prestress adjusting assembly, and realizes stable anchoring of the folded and unfolded framework inflatable structure in the moon lava pipe environment. The anchoring component is tightly combined with the rock wall drilling hole in an expansion mode to provide basic anchoring force for the system, the buffer component is arranged in the sliding cavity and can absorb environmental energy to realize graded energy consumption during local rock wall microseism, the guy cable can realize reliable connection of the anchoring component and the prestress adjusting component, and the prestress adjusting component can counteract stress fluctuation caused by factors such as environmental deformation, temperature change and the like by adjusting guy cable prestress. The application solves the technical problems that the anchoring structure needs to be compatible with stability and adaptability under special environments such as low gravity, high radiation, easy occurrence of microseismic and the like of the moon, and provides a core guarantee for safe deployment of the folded skeleton inflatable structure in the lunar lava pipe.

Inventors

PAN PENGZHI
FENG YUJIE
WANG YAGE
DU DEWEI
LIU XUFENG
WANG ZHAOFENG
Mei Wanquan

Assignees

中国科学院武汉岩土力学研究所

Dates

Publication Date: 20260512
Application Date: 20260206

Claims (10)

1. An adaptive hierarchical energy-consuming rock wall anchoring system for anchoring a folded-open framework inflatable structure within a hollow cavity of a lunar lava tube, the anchoring system comprising: The anchoring assembly is used for expanding and anchoring in a drilling hole on the inner wall of the lunar lava pipe, and a sliding cavity is arranged in the anchoring assembly; The buffer component is arranged in the sliding cavity and is used for absorbing environmental energy for the anchoring component when the local rock wall is subjected to microseismic; one end of the inhaul cable is fixedly connected with one end, far away from the rock wall, of the anchoring assembly; The prestress adjusting component is characterized in that one end of the prestress adjusting component is fixedly connected with the other end of the inhaul cable, and the other end of the prestress adjusting component is rotatably connected with a folding and unfolding framework structure node of the folding and unfolding framework inflatable structure and used for adjusting prestress of the inhaul cable.
2. The adaptive hierarchical energy consuming rock wall anchoring system according to claim 1, wherein said anchoring assembly comprises: the sliding cavity is arranged in the central anchor core; the diameter of the conical end head is gradually increased along the axis direction far away from the central anchor core; The multistage expansion anchor bolts are movably sleeved on the periphery of the central anchor core, the inner diameter of each multistage expansion anchor bolt is smaller than the outer diameter of the conical end head, and a plurality of expansion grooves are uniformly formed in the side wall of one end, close to the conical end head, of each multistage expansion anchor bolt at intervals along the axial direction; The other end of the central anchor core is fixedly connected with the inhaul cable.
3. The adaptive hierarchical energy consuming rock wall anchoring system of claim 2, wherein: the multistage expansion anchor bolt comprises a buffer layer, an outer stage expansion unit, a middle stage expansion unit and an inner stage expansion unit, wherein the elastic modulus of the buffer layer is gradually reduced from inside to outside, the inner stage expansion unit, the middle stage expansion unit and the outer stage expansion unit are arranged in a layered mode along the radial direction of a central anchor core to form a composite cylindrical structure, the buffer layer is respectively arranged between adjacent stage expansion units, the inner stage expansion unit is sleeved on the periphery of the central anchor core, and a guide conical surface is arranged on the inner side wall of one end, close to the conical end, of the inner stage expansion unit, and the maximum inner diameter of the guide conical surface is smaller than the maximum outer diameter of the conical end.
4. The adaptive hierarchical energy consuming rock wall anchoring system of claim 3, wherein, The rigidity strength of the inner-stage expansion unit, the middle-stage expansion unit and the outer-stage expansion unit is sequentially reduced, and the elasticity modulus is sequentially increased.
5. The adaptive hierarchical energy consuming rock wall anchoring system according to claim 1 or 4, wherein said cushioning assembly comprises: The solid rod is arranged in the sliding cavity, a plurality of grooves are uniformly formed in the outer side wall of the solid rod along the circumferential direction, and a plurality of grooves corresponding to the grooves are formed in the inner side wall of the sliding cavity; one end of the shape memory alloy spring is fixedly connected with one end of the solid rod, and the other end of the shape memory alloy spring is fixedly connected with the side wall of one end of the sliding cavity, which is far away from the conical end head; The metal rubber ring is sleeved on the periphery of the solid rod, and the outer surface of the metal rubber ring is contacted with the inner side wall of the sliding cavity to form friction connection; the number of the pre-tightening springs is matched with that of the grooves, and one end of one pre-tightening spring is correspondingly and fixedly connected with the bottom of one groove body; And the clamping beads are matched with the number of the pre-tightening springs, one clamping bead is fixedly connected to the other end of one pre-tightening spring, and the other clamping bead is correspondingly abutted in one groove under the action of the elasticity of the pre-tightening spring.
6. The adaptive hierarchical energy consuming rock wall anchoring system according to claim 5, wherein said pull cable comprises: The core bearing layer is composed of nickel-titanium-based shape memory alloy tows; the outer braided reinforcing layer is coated on the periphery of the core bearing layer and is formed by mixed braiding of basalt fibers and carbon fibers; the protective coating is coated on the outer surface of the outer woven reinforcing layer, and is made of a vacuum-resistant and radiation-resistant high polymer material.
7. The adaptive hierarchical energy consuming rock wall anchoring system according to claim 6, wherein said prestressing adjustment assembly comprises: the left side surface of the hollow shell is provided with a through hole; the sliding block is in sliding connection with the inner side wall at the bottom of the hollow shell, and the rack is fixedly arranged at the top of the sliding block; one end of the first adjusting spring is fixedly connected with the right end of the rack, and the other end of the first adjusting spring is fixedly connected with the inner side wall of the right side face of the hollow shell; One end of the connecting rod is fixedly connected with the inner side wall of the top of the hollow shell; the upper part of the pawl is rotationally connected with the other end of the connecting rod, and the lower part of the pawl is matched with the saw teeth of the rack; The second adjusting spring is sleeved on the connecting rod, one end of the second adjusting spring is fixedly connected with the shell, the other end of the second adjusting spring is fixedly connected with the right lower end of the pawl, and the second adjusting spring is in a natural extension state; The control module is fixedly arranged in the hollow shell and is electrically connected with the first adjusting spring and the second adjusting spring respectively.
8. The adaptive hierarchical energy consuming rock wall anchoring system of claim 7, wherein, The outer side wall of the right end of the hollow shell is rotationally connected with the node of the folding and unfolding framework structure through a spherical hinge pair.
9. The adaptive hierarchical energy consuming rock wall anchoring system according to claim 1, wherein said anchoring system further comprises: the stress sensor is embedded on the outer side wall of the central anchor core and is used for monitoring the anchoring stress of the central anchor core; the displacement sensor is embedded on the outer side wall of the solid rod and is used for monitoring the sliding displacement of the solid rod; the temperature sensor is fixedly arranged on the anchor cable and used for monitoring the environment temperature of the inhaul cable and sending the environment temperature to the control module; the stress sensor, the displacement sensor and the temperature sensor are respectively in communication connection with the control module.
10. A collapsible and expandable inflatable living accommodation, comprising: The self-adaptive graded energy consumption type rock wall anchoring system comprises a folded framework inflatable structure and a plurality of self-adaptive graded energy consumption type rock wall anchoring systems as claimed in any one of claims 1 to 9, wherein the number of the anchoring systems is matched with the number of folded framework structure nodes of the folded framework inflatable structure, one anchoring system is correspondingly and rotatably connected with one folded framework structure node, and the anchoring system is used for anchoring the folded framework inflatable structure in a hollow cavity of a moon lava pipe.

Description

Self-adaptive hierarchical energy consumption type rock wall anchoring system and folded inflatable living cabin Technical Field The invention relates to the technical field of deep space exploration and geotechnical engineering, in particular to a self-adaptive hierarchical energy-consumption type rock wall anchoring system and a folded and unfolded inflatable living cabin. Background With the development of long-term residence and deep space exploration tasks of moon, the construction of a permanent base by using a moon lava pipe as a natural protection space has become an important research direction. The lava pipe has good radiation shielding and micro merle protection capability, but the internal rock wall structure of the lava pipe has the typical characteristics that rock mass components and mechanical properties are highly heterogeneous, hidden cracks and loosening layers exist, the lava pipe is in a day and night extreme temperature difference circulation environment for a long time, the rock wall and structural materials are easy to generate thermal stress, moon micro-vibration and potential local collapse risks are generated, and high reliability requirements are put on structural connection nodes. The existing space structure anchoring technology mostly adopts a rigid anchor bolt or a single prestress inhaul cable structure, and has the defects that the rigid anchor bolt is easy to concentrate stress under the action of micro-vibration and temperature difference, fatigue damage or pulling failure is caused, dynamic adjustment cannot be carried out according to stress requirements of a base in different inflation and deployment stages, and an effective energy consumption and buffering mechanism is lacked when the local rock wall is micro-displaced or damaged at an initial stage. Therefore, how to provide an adaptive hierarchical energy-consumption type rock wall anchoring system, which can work for a long time in a complex environment of a lunar lava pipe and has flexible adaptation and structural strength is a technical problem which needs to be solved by a person skilled in the art. Disclosure of Invention In view of the above problems, the present invention is directed to providing an adaptive hierarchical energy-consuming type rock wall anchoring system and a folded and unfolded inflatable living accommodation, which at least solve at least one of the above technical problems. To solve the above technical problem, in a first aspect, the present invention provides an adaptive hierarchical energy-consuming type rock wall anchoring system for anchoring a folded-open framework inflatable structure in a hollow cavity of a lunar lava pipe, the anchoring system comprising: The anchoring assembly is used for expanding and anchoring in a drilling hole on the inner wall of the lunar lava pipe, and a sliding cavity is arranged in the anchoring assembly; The buffer component is arranged in the sliding cavity and is used for absorbing environmental energy for the anchoring component when the local rock wall is subjected to microseismic; one end of the inhaul cable is fixedly connected with one end, far away from the rock wall, of the anchoring assembly; The prestress adjusting component is characterized in that one end of the prestress adjusting component is fixedly connected with the other end of the inhaul cable, and the other end of the prestress adjusting component is rotatably connected with a folding and unfolding framework structure node of the folding and unfolding framework inflatable structure and used for adjusting prestress of the inhaul cable. Preferably, the anchor assembly comprises: the sliding cavity is arranged in the central anchor core; the diameter of the conical end head is gradually increased along the axis direction far away from the central anchor core; The multistage expansion anchor bolts are movably sleeved on the periphery of the central anchor core, the inner diameter of each multistage expansion anchor bolt is smaller than the outer diameter of the conical end head, and a plurality of expansion grooves are uniformly formed in the side wall of one end, close to the conical end head, of each multistage expansion anchor bolt at intervals along the axial direction; The other end of the central anchor core is fixedly connected with the inhaul cable. The multistage expansion anchor bolt comprises a buffer layer, an outer stage expansion unit, a middle stage expansion unit and an inner stage expansion unit, wherein the elastic modulus of the buffer layer is gradually reduced from inside to outside, the inner stage expansion unit, the middle stage expansion unit and the outer stage expansion unit are arranged in a layered mode along the radial direction of the central anchor core to form a composite cylindrical structure, the buffer layer is respectively arranged between the adjacent stage expansion units, the inner stage expansion unit is sleeved on the periphery of the central anc