CN-122013813-A - Comprehensive pipe rack suitable for island reef environment

CN122013813ACN 122013813 ACN122013813 ACN 122013813ACN-122013813-A

Abstract

The application discloses a comprehensive pipe rack suitable for an island environment, which comprises an inner pipe rack, an outer pipe rack, MICP anti-seepage bodies, a self-adaptive composite damping device, a sensing device, a control device and an energy supply device, wherein the outer pipe rack and the inner pipe rack are coaxially arranged to form a vacuum cavity, an array of the self-adaptive composite damping device is arranged in the vacuum cavity and connected between the inner pipe rack and the outer pipe rack and is used for carrying out structural adjustment when the pipe rack is deformed, the MICP anti-seepage bodies are arranged outside the outer pipe rack in a surrounding manner to carry out anti-seepage reinforcement on a foundation around, the sensing device is used for detecting structural deformation of the pipe rack, the control device controls the self-adaptive composite damping device to generate reset deformation according to the structural deformation, and a thermoelectric power generation assembly is used for providing electric energy for electric equipment. The comprehensive pipe rack can realize self-adaptive regulation of the structure, seepage-proofing reinforcement of the foundation and energy source supply operation at the same time, and remarkably improves the structural stability, seepage-proofing performance and long-term operation reliability of the comprehensive pipe rack in a complex marine environment.

Inventors

WU YANG
XIAO JIANYAO
HUANG JIE
LI WEISHEN
HUANG YONGHUI
WEN LIWEI

Assignees

广州大学

Dates

Publication Date: 20260512
Application Date: 20260416

Claims (10)

1. A utility tunnel suitable for island environments is characterized by comprising An inner layer pipe gallery; The outer layer pipe gallery is coaxially arranged with the inner layer pipe gallery, and a vacuum cavity is arranged between the outer layer pipe gallery and the inner layer pipe gallery; A MICP impermeable body surrounding the outside of the outer layer piping lane, the MICP impermeable body configured to induce calcium carbonate deposition by microorganisms to provide impermeable reinforcement to the outer foundation; The self-adaptive composite damping devices are arranged in the vacuum cavity, one end of each self-adaptive composite damping device is connected with the outer side of the inner layer pipe gallery, and the other end of each self-adaptive composite damping device is connected with the inner side of the outer layer pipe gallery; a sensing device configured to detect structural deformations of the utility tunnel; The control device is connected with the sensing device and is configured to control the self-adaptive composite damping device to generate reset deformation according to the detected structural deformation information; the energy supply device is respectively connected with the sensing device, the control device and the self-adaptive composite damping device.
2. The utility tunnel adapted for use in an island environment as defined in claim 1, wherein the adaptive composite damping device comprises a housing and a reset assembly disposed within the housing, the housing comprising a first flange, a second flange and a sleeve, the first flange being connected to the inner layer tunnel, the second flange being connected to the outer layer tunnel, the sleeve being disposed between the first flange and the second flange, the reset assembly comprising an SMA spring assembly and a heating assembly, both ends of the SMA spring assembly being connected to the first flange and the second flange, respectively, the heating assembly being connected to the SMA spring assembly and the control device, respectively, the control device being configured to control heating parameters of the heating assembly based on the detected structural deformation information to heat the SMA spring assembly to trigger a shape memory reset.
3. The utility tunnel adapted for use in an island environment of claim 2 wherein the adaptive compound damping device further comprises a buffer assembly comprising a first buffer member disposed between the first flange and a first end of the SMA spring assembly and a second buffer member disposed between the second flange and a second end of the SMA spring assembly.
4. The utility tunnel adapted for use in an island environment as defined in claim 3, wherein the adaptive compound damping device further comprises an MR damping assembly disposed between the second end of the SMA spring assembly and the second cushioning member and within the magnetic field generated by the magnetic field generating assembly, and a magnetic field generating assembly coupled to the control device, the control device configured to control the strength of the magnetic field based on the detected structural deformation information to adjust the damping force generated by the MR damping assembly.
5. The utility tunnel adapted for use in an island environment as defined in any one of claims 2 to 4, wherein the SMA spring assembly comprises a first SMA spring, a second SMA spring, and a first connector, one end of the first SMA spring is connected to the first flange, the other end of the first SMA spring is connected to one end of the second SMA spring via the first connector, the other end of the second SMA spring is connected to the second flange, and the heating assembly is disposed on the first connector.
6. The utility tunnel adapted for use in an island environment as defined in any one of claims 2 to 4, wherein the adaptive compound damping device further comprises an anti-deflection assembly disposed between the first flange and the SMA spring assembly, the anti-deflection assembly comprising a second connector, a ball socket disposed on the first flange, and a ball head mated with the ball socket, the ball head disposed at a first end of the SMA spring assembly via the second connector.
7. The utility model provides a utility tunnel suitable for island circumstances, wherein MICP prevention of seepage body includes tie coat, interlock layer, reinforcement layer, isolation layer and anchor layer that connects gradually, the outside of outer pipe gallery is equipped with a plurality of dogteeth, forms the tooth socket between the adjacent dogtooth, the tie coat covers in the outside of outer pipe gallery, the interlock layer covers on the tie coat and at least part the interlock layer is filled in the tooth socket.
8. The utility tunnel adapted for use in an island environment as defined in claim 7, wherein the bonding layer is made of a material including a first MICP slurry having a bacterial liquid OD600 of 1.0-1.2 and a calcium source concentration of 0.5-0.8mol/L, and/or The occlusion layer is made of a second MICP slurry comprising Bacillus pasteurisus and a calcium source, and having an OD600 of 0.8-1.0 and a calcium source concentration of 0.3-0.5mol/L, and/or The material for forming the reinforcing layer comprises a third MICP slurry, wherein the third MICP slurry contains bacillus pasteurizus and a calcium source, the OD600 value of the bacterial liquid is 0.6-0.8, the concentration of the calcium source is 0.2-0.4mol/L, the viscosity is less than or equal to 50 mPa.s, and/or The material of the isolating layer comprises flexible impermeable material, and/or The material for preparing the anchoring layer comprises a fourth MICP slurry, the fourth MICP slurry comprises bacillus pasteurizus and a calcium source, the OD600 value of the bacterial liquid is 1.2-1.5, and the concentration of the calcium source is 0.8-1.0mol/L.
9. The utility tunnel adapted for use in an island environment of claim 1 wherein the energy supply means comprises a thermoelectric power generation assembly configured to convert a temperature differential between the interior and exterior of the tunnel into electrical energy.
10. The utility tunnel adapted for use in an island environment of claim 1 further comprising a water absorbing assembly disposed along an inner perimeter side of the outer layer tunnel.

Description

Comprehensive pipe rack suitable for island reef environment Technical Field The application relates to the technical field of ocean engineering, in particular to a comprehensive pipe rack suitable for an island reef environment. Background With the development of ocean engineering and island foundation construction, island areas are used as ocean strategic core nodes, underground comprehensive pipe galleries are life lines for guaranteeing normal operation of power, communication, water supply and drainage and other foundation facilities, and long-term stable service of the underground comprehensive pipe galleries directly relates to operation safety and strategic value of island. However, the island reef environment is obviously different from the land environment, and under the special geographical and environmental conditions of the island reef, the underground soil body is mostly coral sand or loose sea-filling soil layer, the porosity is high, the structural stability is poor, and meanwhile, the seawater salinity is high, the permeability is strong, so that corrosion and permeation effects on the pipe gallery structure are easy to generate. In addition, the island region is also susceptible to factors such as sea wave impact, temperature change, foundation settlement and the like, so that vibration or deformation of the pipe gallery structure is caused. However, the existing comprehensive pipe rack usually adopts a single-layer or common double-layer structure, the structure mainly depends on self rigidity to resist external load, and once the pipe rack is deformed, the structure is difficult to recover in time. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art. The utility tunnel suitable for the island reef environment can realize self-adaptive adjustment of the structure, seepage-proofing reinforcement of the foundation and energy source supply operation at the same time, and remarkably improves the structural stability, seepage-proofing performance and long-term operation reliability of the utility tunnel in a complex marine environment. According to an embodiment of the application, a utility tunnel suitable for island environments comprises: An inner layer pipe gallery; The outer layer pipe gallery is coaxially arranged with the inner layer pipe gallery, and a vacuum cavity is arranged between the outer layer pipe gallery and the inner layer pipe gallery; A MICP impermeable body surrounding the outside of the outer layer piping lane, the MICP impermeable body configured to induce calcium carbonate deposition by microorganisms to provide impermeable reinforcement to the outer foundation; The self-adaptive composite damping devices are arranged in the vacuum cavity, one end of each self-adaptive composite damping device is connected with the outer side of the inner layer pipe gallery, and the other end of each self-adaptive composite damping device is connected with the inner side of the outer layer pipe gallery; a sensing device configured to detect structural deformations of the utility tunnel; The control device is connected with the sensing device and is configured to control the self-adaptive composite damping device to generate reset deformation according to the detected structural deformation information; the energy supply device is respectively connected with the sensing device, the control device and the self-adaptive composite damping device. The utility tunnel suitable for island environments has at least the following beneficial effects: The utility tunnel suitable for the island reef environment comprises an inner layer tunnel, an outer layer tunnel, a MICP impermeable body, a sensing device, a control device, an energy supply device and a plurality of self-adaptive composite damping devices. Wherein, outer piping lane and inlayer piping lane coaxial setting, and the clearance between the two forms the vacuum chamber, is equipped with a plurality of self-adaptation compound damping device in the vacuum chamber, and the vacuum chamber can effectively reduce external sea water, moisture and corrosive environment to the influence of inlayer piping lane, can provide abundant deformation adaptation space for the self-adaptation compound damping device of inside again, thereby can also utilize the inside atmospheric pressure promotion both compaction in opposite directions in inlayer piping lane outside to strengthen sealed effect. The MICP anti-seepage body is arranged on the outer side of the outer layer pipe gallery in a surrounding mode, the MICP anti-seepage body is in contact with surrounding island soil bodies, calcium ions in an external environment are converted into calcium carbonate sediments through microbial induction of calcium carbonate sedimentation, a compact structural layer is formed outside the outer layer pipe gallery, accordingly surrounding foundations are reinforced, and anti-seepage perform