Anti-seismic energy-absorbing construction protection method for karst and travertine geologic body

Through the coordinated mechanism of travertine porous, stacked and wedge-shaped structure and water body oscillating energy dissipation, a natural seismic barrier is built, which solves the problem of traditional seismic technology destroying the landscape, and realizes the ecological protection and seismic energy absorption effect of travertine landscape.

CN120250568APending Publication Date: 2025-07-04SOUTHWEAT UNIV OF SCI & TECH
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Patent Information

Application Number
CN202510726178.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

Traditional seismic resistance technology destroys the authenticity of the landscape in karst and travertine areas and blocks the ecological cycle, and cannot effectively protect the travertine landscape from earthquake damage.

Method used

The coordinated mechanism of energy absorption of travertine porous structures, energy consumption of stacked structures, wedge-shaped stacking structures and water body oscillation energy dissipation is adopted to build a natural seismic barrier, and the viscous friction of water bodies in pores, rhombic calcite interlayer sliding, wedge-shaped staggered slip and water body oscillation energy dissipation is adopted, combined with karst water seepage to promote CaCO3 deposition, and real-time regulation and reinforcement of travertine geological bodies.

Benefits of technology

Effectively reduce the damage to travertine landscape by earthquakes, maintain the ecological compatibility and integrity of the landscape, and provide long-term seismic protection with low cost and easy-to-access natural materials.

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Abstract

The invention discloses an anti-seismic energy-absorbing construction protection method for karst and travertine geologic bodies, which comprises the following steps: utilizing natural and artificial travertine porous structures, a sparse and dense laminated structure, a wedge-shaped piling structure and a water body oscillation effect to synergistically absorb energy, and absorbing seismic waves by the travertine porous structures through viscous friction and gas-liquid compression of a water body in pores; the travertine density stacking structure dissipates energy through inter-layer sliding of rhombic calcite, the travertine wedge-shaped stacking structure dissipates energy through dislocation sliding, and the travertine lake pool dissipates energy through water body oscillation and fluid-solid coupling; according to the travertine geologic bodies of various forms and sizes and tiny cracks and sections generated and left after earthquake resistance and energy absorption of landscapes of the travertine geologic bodies, continuous seepage of karst water is utilized to promote CaCO3 deposition, and the karst water is regulated and controlled in real time in a spraying mode to reinforce and recover the integrality of the travertine geologic bodies and the landscapes from the top. The method is suitable for ecological protection and landscape construction of various karst and travertine geologic bodies and landscapes thereof, natural heritage places and other landscapes which are easily influenced by earthquakes, and has wide application prospects.
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Description

Technical Field

[0001] The present invention belongs to the technical fields of geological engineering, earthquake resistance, and protection and restoration of earthquake-damaged landscapes. More specifically, the present invention relates to a method for protecting earthquake-resistant energy absorption structures of karst and travertine geological bodies. Background Art

[0002] Aba Prefecture in Sichuan is located on the eastern edge of the Qinghai-Tibet Plateau, at the intersection of the Longmenshan Fault Zone and the Xianshuihe Fault Zone. It has two world natural heritage sites of travertine, namely Jiuzhaigou and Huanglonggou, both of which are included in the "World Cultural and Natural Heritage List". The wonderful travertine deposition morphology forms unique travertine landscapes, such as travertine waterfalls, travertine lakes, travertine colorful pools, and so on. However, this area is also one of the earthquake-prone areas with frequent geological activities, often causing great damage. Surprisingly, the travertine landscape bodies in Jiuzhaigou and Huanglonggou were only severely damaged in the magnitude 7.0 earthquake in 2017, including the collapse of the Huohuahai dam body, the damage of the Nuorilang Waterfall, and the damage of the Huanglong colorful pools. The travertine landscape has still been preserved to this day under the influence of multiple earthquakes over the past thousands of years.

[0003] Traditional earthquake-resistant technologies use concrete reinforcement or rigid structures, which have the defects of destroying the authenticity of the landscape and blocking the ecological cycle. For example, Chinese Patent CN108547633A discloses an earthquake-resistant structure spanning an active fault and its construction method, which introduces a shock-absorbing ring for energy absorption; Chinese Patent CN119641013A discloses a shock-absorbing damping block, a filling wall and its construction method, which introduces a rubber shock-absorbing block, both of which are not conducive to the ecological protection in karst and travertine areas. The present invention constructs a natural earthquake-resistant barrier through the synergistic mechanism of energy absorption by the travertine porous structure, energy consumption by the laminated structure, the wedge-shaped stacking structure and water body oscillation energy dissipation, and proposes a method for protecting earthquake-resistant energy absorption structures of karst and travertine geological bodies. The present invention is particularly suitable for the protection of natural heritage sites in earthquake-prone areas and the earthquake-resistant design of buildings, provides a natural, economical and efficient earthquake-resistant protection method, and takes into account ecological compatibility and authenticity. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for protecting earthquake-resistant energy absorption structures of karst and travertine geological bodies and their landscapes, which relates to the technical fields of geological engineering, earthquake resistance, and protection and restoration of earthquake-damaged landscapes. Specifically, for the problem of landscape body damage caused by earthquakes in karst landform areas, travertine natural heritage sites and their landscapes (such as travertine dams, waterfalls, colorful pools, collapsed lakes, etc.), a natural earthquake-resistant barrier and the reinforcement and repair of travertine geological bodies and their landscapes are constructed through the synergistic mechanism of energy absorption by natural and artificial constructed porous structures, energy consumption by the laminated structure, the wedge-shaped stacking structure and water body oscillation energy dissipation.

[0005] To achieve these and other advantages in accordance with the present invention, a seismic energy absorption and construction protection method for karst and travertine geological bodies is provided, including: synergistically absorbing energy by using natural and artificial travertine porous structures, dense and sparse stacked structures, wedge-shaped stacking structures, and water body oscillation effects. Among them, the travertine porous structure absorbs seismic waves (attenuation rate 20% - 50%) through the viscous friction of water in pores and gas-liquid compression. The dense and sparse stacked travertine structure dissipates energy through the interlayer sliding of rhombic calcite (attenuation rate 5% - 20%). The wedge-shaped stacking travertine structure dissipates energy through dislocation and sliding (attenuation rate 5 - 20%). Travertine lakes and travertine pools dissipate energy through water body oscillation and fluid-solid coupling (attenuation rate 5% - 10%), thereby effectively reducing the damage of earthquakes to the landscape bodies. For the tiny cracks and cross-sections generated and left after the seismic energy absorption of travertine geological bodies of various shapes and sizes and their landscapes, the continuous seepage of karst water is used to promote CaCO3 deposition, or the karst water is sprayed in real-time to control and reinforce the integrity of travertine geological bodies and their landscapes from the top.

[0006] Preferably, the travertine porous structure is a porous structure constructed by multi-stage particle gradation and microorganisms, with a porosity of 10% - 50% and a density of 1.5 g / cm 3 ~2.5 g / cm 3 , the travertine porous structure has pores ranging from 1 - 200 nm in nanoscale to centimeter scale. The microorganisms include diatoms and cyanobacteria. The permeability of natural or artificial travertine porous structures is 50 - 200 mD, the moisture content is 10% - 60%, and the elastic modulus is 0.5 - 5 GPa. The pore space can effectively absorb and disperse seismic wave energy, and the complex pore structure increases the energy dissipation path and improves the absorption effect.

[0007] The porous energy absorption method is to absorb seismic wave energy through the pore space of porous travertine and the water in the pores, with an attenuation rate of 20% - 50%.

[0008] During the seepage process of karst water, the continuous crystallization of CaCO3 is promoted synchronously inside and outside the pores, and the compressive strength self-strengthens to 5 - 20 MPa. The secondary micro-cracks can be quickly filled, cemented, and reinforced to maintain the integrity of travertine geological bodies and landscapes.

[0009] Porous travertine contains a large amount of co-deposited algae such as diatoms, spirogyra, and cyanobacteria, among which diatoms and cyanobacteria are the dominant algae. Diatom bodies have a large number of nanoscale pores [(1 - 100)nm × (1 - 500)nm]. These biological nanoscale grid pores exist in large quantities in the travertine body and play a very good role in penetration. Microorganisms produce pores ranging from nanoscale to micron scale, and the pore size range is 1nm - 200um.

[0010] The elastic modulus of the travertine porous structure geological body is 0.5 - 5 GPa, and it can deform during an earthquake without being easily fractured. Travertine geological bodies with high porosity and high water content have lower elastic moduli. In seismic energy absorption design, travertine with a low elastic modulus is more suitable as an energy absorption material because it can effectively dissipate seismic energy through elastic deformation and has a natural self - buffering function.

[0011] Preferably, the travertine dense - sparse laminated structure is a rhombic calcite powder or a laminated structure of rhombic and triangular travertine blocks, with a tensile strength of 2 - 8 MPa. Micro - meter - sized fissures or sliding displacements are allowed between layers. The travertine powder or blocks form a natural or designed grading to make the stress load distribution uniform in all directions. The inter - layer sliding displacement of the travertine dense - sparse laminated structure can dissipate seismic wave energy. During the propagation of seismic waves, micro - deformations will occur in the internal particles or mineral lattices of travertine. The viscous friction between particles in dense travertine will convert part of the wave energy into heat energy, and the seismic wave attenuation rate is 5% - 20%. Preferably, the water body oscillation effect - assisted energy absorption includes longitudinal wave viscous dissipation and transverse wave interface reflection conversion. The porous permeability of the slope or base of the travertine lake enhances the friction blockage of the reciprocating flow of the fluid for energy absorption, and the permeability of the porous permeability of the base is ≥50 mD.

[0012] Preferably, by naturally or artificially regulating the seepage flow rate of karst water, the pore water content is maintained at 10% - 60%, and the regulation range is 0.1 - 0.5 L / m²·s, which promotes the continuous crystallization of CaCO3. The compressive strength self - enhances to 5 - 20 MPa, and the secondary micro - fissures can be quickly filled, cemented, and reinforced to maintain the integrity of the travertine geological body and the landscape. When seismic waves pass through the water - containing pores, the water in the pores generates internal friction due to viscosity, converting the seismic wave energy into heat energy. At the same time, the air and water in the pores will be compressed and flow, and the inertial movement of the water consumes part of the energy. The higher the pore water content, the greater the viscous dissipation and the greater the attenuation of seismic waves.

[0013] Preferably, microbial inoculants induce the generation of nano - pores, secrete extracellular polymeric substances (EPS) to directionally regulate the crystallization orientation of calcite, and quickly fill and cement various fissures generated by earthquakes. The concentration of diatoms is 10 5 ~10 8 CFU / mL.

[0014] Preferably, for the repair of the travertine geological body, graded powder is used to fill the cracks. The sizes of the coarse and medium particles are 1 - 5 mm, the size of the fine particles is less than 0.5 mm, and the mass ratio of the coarse, medium, and fine particles is 4 - 8:1 - 5:1. The permeability coefficient is controlled at 10 -4 ~10 -2 cm / s, the porosity is controlled at 15% - 30%, and the biomass OTUs is controlled at 500 - 900.

[0015] Preferably, the travertine geological body has a wedge-shaped construction structure, with a 1-5 mm micro-gap reserved between layers to accommodate deformation. The wedge-shaped blocks form a special flexible structure body, which can not only bear a large load, but also allow a certain amount of deformation. Under seismic loads, a certain amount of seismic energy can be offset through deformation, reducing the seismic response of the structure. The travertine powder or blocks are naturally or designed to form a grading, making the stress loads in all directions evenly distributed, with a tensile strength of 2-8 MPa and a compressive strength of 5-15 MPa.

[0016] Preferably, the energy dissipation of water body oscillation in the travertine lake or travertine pool is specifically manifested as the attenuation of longitudinal waves and the blocking of transverse waves. The propagation speed of longitudinal waves in water is relatively low (about 1500 m / s), but the energy is easily dissipated through the viscous movement of water molecules, especially for high-frequency components; transverse waves cannot propagate in water and will be reflected or converted into other wave types (such as refracted longitudinal waves) when reaching the water-travertine interface, indirectly reducing the energy. Preferably, the seismic repair and reinforcement of the travertine lake pool includes a composite structure of a porous layer on the slope and bottom and a dense anti-seepage layer on the upper part, optimizing the fluid-solid coupling seismic energy absorption effect. The porosity of the porous layer on the slope and bottom is ≥30%, and the porosity of the dense anti-seepage layer on the upper part is ≤15.

[0017] Preferably, the fluid-solid coupling absorbs seismic wave energy, which is specifically manifested as when seismic waves pass through the travertine lake or travertine pool, the pressure fluctuation causes the water body to flow back and forth in the pores or cracks on the slope or base of the dam, and the friction resistance absorbs energy, and the frictional heat generation consumes energy. High-frequency waves cause more violent water body vibration, and the viscous loss is more significant. If the travertine slope or base is porous and has high permeability (permeability ≥50 mD), the fluid movement is freer and the absorption efficiency is higher. Through the water body oscillation and friction energy absorption in the travertine lake or travertine pool and the fluid-solid coupling absorption of seismic wave energy, the attenuation rate is 5%-10%.

[0018] Preferably, the integrity of the travertine geological body and its landscape is reinforced and restored from the top by using the karst water spraying method, and fiber optic sensors are loaded to monitor the pore water pressure and elastic modulus. The karst water spraying volume and frequency are adjusted in real time dynamically, which can continuously crystallize the 0.1-5 mm micro-cracks caused by seismic damage, and realize self-enhanced repair of micro-cracks through calcareous cementation. The continuous maintenance period is 1-6 months, and the accuracy of the fiber optic sensor is ±0.1 kPa.

[0019] An application of an anti-seismic energy absorption construction protection method for karst and travertine geological bodies, the anti-seismic energy absorption construction protection method is applied to the ecological protection of various karst landforms, travertine natural heritage sites, and landscapes of ancient buildings affected by earthquakes. The travertine natural heritage sites include travertine dams, waterfalls, colorful pools, and collapsed lakes.

[0020] The present invention has at least the following beneficial effects: In the travertine geological body constructed by the present invention, the porous travertine structure absorbs seismic waves through the viscous friction of the water body in the pores and the compression of gas-liquid (attenuation rate: 20%-50%); the dense travertine dissipates energy through the interlayer sliding of rhombic calcite (attenuation rate: 5%-20%); the wedge-shaped stacking structure of the travertine body dissipates energy through dislocation and slip (attenuation rate: 5%-20%); and the travertine lakes and pools dissipate energy through water body oscillation and fluid-solid coupling (attenuation rate: 5%-10%), thereby effectively reducing the damage of earthquakes to the landscape.

[0021] The present invention is applicable to the ecological protection and landscape construction of various karst and travertine geological bodies, their landscapes, natural heritage sites, and other landscapes vulnerable to earthquakes, and has broad application prospects.

[0022] The travertine geological body constructed by the present invention is a natural material with low cost and easy availability. Moreover, the travertine geological body has good durability and can provide long-term earthquake energy absorption protection.

[0023] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Detailed implementation mode

[0024] The following provides a further detailed description of the present invention to enable those skilled in the art to implement it with reference to the text of the specification.

[0025] It should be understood that the terms such as "having", "comprising", and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations. Example 1: Restoration of the travertine of Nuorilang Waterfall in Jiuzhaigou The Nuorilang Waterfall in Jiuzhaigou was severely damaged in the 7.0-magnitude earthquake in Jiuzhaigou in 2017. The cracks in the waterfall dam body range from 1 m to 15 m in length, 1 cm to 50 cm in width, and there are more than 20 such cracks. The cracks caused the waterfall to dry up and the landscape was severely damaged.

[0026] In this example, the travertine geological body is used for the ecological restoration of the Nuorilang Waterfall. Travertine-type blocks mainly composed of travertine are filled into the large cracks in the dam body in a wedge-shaped construction method. Porous travertine graded powder (porosity: 35%, mass ratio of coarse particles, medium particles, and fine particles: 15:7:3, size of coarse particles and medium particles: 1-5 mm, size of fine particles: less than 0.5 mm) is used to fill the cracks, and a diatom bactericide (10 7 CFU / mL) is sprayed, with a spraying amount of 2 L / m 2 , to generate nano-micron pores. Calcium-rich Ca 2+ and HCO3 -The karst water overflows the dam crest and flows down. After 3 months of seepage maintenance, the compressive strength reaches 6 - 8 MPa. The elastic modulus of the travertine on the dam body is 0.8 - 1.2 GPa. The moisture content of the repaired dam body reaches 30% - 40%, and the permeability is 140 mD - 180 mD. The repaired dam body utilizes its porosity and elasticity to absorb seismic wave energy, and dissipates seismic wave energy through the friction of the water body in the pores.

[0027] After the Nuorilang Waterfall repaired by the present invention has experienced the 4.5 - magnitude earthquake in Songpan, Aba on September 12, 2019, the 4.0 - magnitude earthquake in Ruoergai, Aba on July 12, 2020, the 4.8 - magnitude earthquake in Wenchuan, Aba on July 14, 2021, and the 6.0 - magnitude earthquake in Barkam, Aba on June 10, 2022, the landscape has not been damaged and no new cracks have appeared, indicating that the energy absorption method of this structure has a good effect.

[0028] Example 2: Protective restoration of the King Yu Temple in Huanglong Gully, an ancient building As a landmark ancient building in Huanglong, the King Yu Temple has a history of thousands of years. Its outer wall has gradually shown degradation phenomena such as peeling and cracking, and the outer wall needs to be protected and restored.

[0029] In this example, a travertine geological body is used to reinforce and repair the outer wall of the King Yu Temple. After doing anti - seepage treatment on the outer wall surface, a trapezoidal travertine dam body structure with a height of 1.2 m, a bottom width of 0.8 m, and a top width of 0.1 m is set along the outer wall. It is constructed in a wedge - shaped structure, and the outer facade has a slope shape. The travertine used has a density of 1.5 g / cm 3 ~2.0 g / cm 3 , and the porosity is 15% - 20%. Spraying with karst water from the top is used for reinforcement, and continuous maintenance is carried out for 2 months. The King Yu Temple is located beside the travertine colored pools, and there is long - term karst water flowing outside the wall. The moisture content of the repaired travertine structure is 10% - 20%, the compressive strength is 8 - 15 MPa, and the elastic modulus is 1 - 2 GPa. The repaired travertine structure takes into account the ecological compatibility of the travertine natural heritage site, and can absorb seismic wave energy using its porous structure, protecting the ancient building from seismic hazards in future seismic impacts as a natural seismic barrier.

[0030] Example 3: Construction of the collapsed dam body of the Huanglong colored pools The travertine terraced colored pools in Huanglong are typical scenic spots in Huanglong. The dam bodies of some colored pools have collapsed due to degradation.

[0031] In this example, a travertine geological body is used to ecologically repair the collapsed dam body of the Huanglong colored pools. The dam body construction adopts a composite structure of a bottom porous layer (porosity 20% - 35%) and an upper dense anti - seepage layer (porosity 8% - 10%), and is constructed by pre - cast wedge - shaped blocks. A 1 - 5 mm micro - gap is reserved between layers to adapt to deformation. During the construction process, diatom bacteria agents (106 CFU / mL), and the spraying amount is 1 L / m 2 , inducing the generation of nano-micropores, secreting extracellular polymers (EPS) to directionally regulate the crystallization orientation of calcite. By regulating the karst water spraying amount, the pore moisture content is maintained at 30% - 40%, promoting the continuous crystallization of CaCO3. After 3 months of spraying maintenance, the compressive strength self-strengthens to 10 MPa. The water body oscillation reduces the longitudinal wave energy by 32%, and the monitoring shows that the seismic intensity around the colored pool body decreases by 1.2 levels.

[0032] Example 4: Seismic repair of karst stone forest Karst stone forest is a peculiar karst landscape. The formation of the landscape is slow, and it is difficult to repair after being damaged.

[0033] In this example, the travertine geological body is used to carry out ecological restoration on the Xingwen Stone Forest damaged by the earthquake. For the tiny cracks and cross-sections generated by the earthquake, the spraying method is adopted to reinforce and restore from the top of the stone pillar. The calcium ion concentration of the karst water is regulated to 300 mg / L, and the bicarbonate concentration is 700 mg / L. The spraying frequency is to continuously spray for 4 hours and then intermittently for 1 hour, and the spraying amount is 20 mL / s, promoting the deposition of CaCO3 in the cracks. A total of 2 months of maintenance is carried out. The secondary micro-cracks can be quickly filled, cemented and reinforced to maintain the integrity of the damaged landscape of the stone forest. For the stone pillars severely fractured by the earthquake, dense travertine with a porosity of 10% is used to prefabricate wedge-shaped blocks for masonry. A micro-gap of 1 - 5 mm is reserved between layers to adapt to the deformation, and graded powder is used to fill the cracks. The karst water spraying method is adopted to reinforce and restore the integrity of the travertine geological body and its landscape from the top, quickly fill, cement and reinforce. After 4 months of continuous maintenance, the compressive strength self-strengthens to 8 MPa.

[0034] The equipment quantities and treatment scales described here are used to simplify the description of the present invention. The applications, modifications and variations of the present invention are obvious to those skilled in the art.

[0035] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. An anti-seismic energy-absorbing construction protection method for karst and travertine geological bodies, characterized in that, Including: Utilize the collaborative energy absorption of natural and artificial travertine porous structures, dense and sparse laminated structures, wedge-shaped stacking structures, and water body oscillation effects. Among them, the travertine porous structure absorbs seismic waves through the viscous friction of water in pores and gas-liquid compression. The travertine dense and sparse laminated structure dissipates energy through the interlayer sliding of rhombohedral calcite. The travertine wedge-shaped stacking structure dissipates energy through dislocation and slip. The travertine lake pond dissipates energy through water body oscillation and fluid-solid coupling; the tiny cracks and cross-sections generated and left after the seismic energy absorption of travertine geological bodies and their landscapes of various shapes and sizes utilize the continuous seepage of karst water to promote CaCO3 deposition, or adopt the spraying method to regulate the karst water in real time from the top to reinforce and restore the integrity of travertine geological bodies and their landscapes.

2. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that, The travertine porous structure is a porous structure composed of multi-level particle gradation and microorganisms, with a porosity of 10% - 50%. The travertine porous structure has pores ranging from 1 to 200 nm at the nanometer to centimeter scale. The microorganisms include diatoms and cyanobacteria. The permeability of natural or artificial travertine porous structures is 50 - 200 mD, the water content is 10% - 60%, and the elastic modulus is 0.5 - 5 GPa.

3. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that The travertine dense and sparse laminated structure is a laminated structure of rhombohedral calcite powder or rhombohedral and triangular travertine blocks, with a tensile strength of 2 - 8 MPa. Microscopic cracks or sliding displacements at the micron scale are allowed between layers. The travertine powder or blocks are naturally or designed to form a gradation to make the stress loads in all directions evenly distributed; The travertine dense and sparse laminated structure is constructed by prefabricated wedge-shaped blocks, with a micro-gap of 1 - 5 mm reserved between layers to adapt to deformation, and a compressive strength of 5 - 15 MPa.

4. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that The collaborative energy absorption of the water body oscillation effect includes the viscous dissipation of longitudinal waves and the interface reflection conversion of transverse waves. The porous permeability of the slope or base of the travertine lake pond enhances the friction resistance of the reciprocating flow of the fluid to absorb energy, and the permeability of the base porous permeability is ≥50 mD.

5. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that Maintain the pore water content at 10% - 60% by naturally or artificially regulating the seepage flow rate of karst water. The regulation range is 0.1 - 0.5 L / m²·s, promote the continuous crystallization of CaCO3, and the compressive strength self-enhances to 5 - 20 MPa. The secondary micro-cracks can be quickly filled and cemented to be reinforced, maintaining the integrity of travertine geological bodies and landscapes.

6. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that, Microbial agents induce the formation of nanopores, secrete extracellular polymers (EPS) to regulate the crystal orientation of calcite, and quickly fill and cement various cracks generated by earthquakes. The diatom concentration is 10 5 ~10 8 CFU / mL.

7. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that, The travertine geological body is repaired by filling cracks with graded powder. The sizes of the coarse particles and medium particles are 1-5 mm, the size of the fine particles is less than 0.5 mm, and the mass ratio of the coarse particles, medium particles and fine particles is 4-8:1-5:

1. The permeability coefficient is controlled to be 10 -4 ~10 -2 cm / s, the porosity is controlled to be 15%-30%, and the biomass OTUs is controlled to be 500-900.

8. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that, The seismic repair and reinforcement of travertine lake ponds include a composite structure of a porous layer on the slope and bottom and a dense anti-seepage layer on the upper part, optimizing the fluid-solid coupling seismic energy absorption effect. The porosity of the porous layer on the slope and bottom is ≥30%, and the porosity of the upper dense anti-seepage layer is ≤15.

9. The anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to claim 1, characterized in that Adopt the method of spraying karst water from the top to reinforce and restore the integrity of travertine geological bodies and their landscapes. Load fiber optic sensors to monitor pore water pressure and elastic modulus, and dynamically adjust the spraying volume and frequency of karst water in real time. The continuous maintenance period is 1 - 6 months, and the accuracy of the fiber optic sensor is ±0.1 kPa.

10. Application of the anti-seismic energy absorption construction protection method for karst and travertine geological bodies according to any one of claims 1-9, characterized in that, The above seismic energy absorption construction protection method is applied to the ecological protection of various karst landforms, travertine natural heritage sites, and landscapes of ancient buildings affected by earthquakes. The travertine natural heritage sites include travertine dams, waterfalls, colorful pools, and collapsed lakes.

Citation Information

Patent Citations

  • Active fault spanning aseismic structure and construction method thereof

    CN108547633A

  • Shock absorption and damping building block, filler wall and construction method of shock absorption and damping building block

    CN119641013A