CN108664754A - A method of buffer layer elasticity modulus is calculated by buffer layer compactness - Google Patents
A method of buffer layer elasticity modulus is calculated by buffer layer compactness Download PDFInfo
- Publication number
- CN108664754A CN108664754A CN201810654169.7A CN201810654169A CN108664754A CN 108664754 A CN108664754 A CN 108664754A CN 201810654169 A CN201810654169 A CN 201810654169A CN 108664754 A CN108664754 A CN 108664754A
- Authority
- CN
- China
- Prior art keywords
- native stone
- stone
- formula
- native
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of methods calculating buffer layer elasticity modulus by buffer layer compactness, which is characterized in that includes the following steps：A, measuring and calculating obtains native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle nonuniform coefficent Cu and native stone compactness S, native stone particle nonuniform coefficent Cu are calculated by formula 1；Native stone particle nonuniform coefficent Cu includes three ranks, and uniform grade, substantially uniform grade and uneven grade judge rank by the native stone particle nonuniform coefficent Cu that formula 1 calculates；B, native stone compactness S is calculated by formula 2；C, native stone elasticity modulus M is calculated according to native stone compactness S.The present invention has fully considered influence of the specific compactness of native stone to elasticity modulus, computational methods are suitable for the practical calculating of the coarse stone buffer layer of field large scale, result of calculation is accurate and reliable, prevents and reduces natural disasters avalanche, falling rocks with higher applicability of taking precautions against natural calamities.
Description
Technical field
The present invention relates to avalanche, falling rocks prevention and cure project fields, more particularly to a kind of calculated by buffer layer compactness to buffer
The method of layer elasticity modulus.
Background technology
Avalanche, falling rocks are a kind of natural phenomenas being happened at mountain area or slope of highway.It is huge after avalanche, falling rocks occur
Stone rolls down under hillside or roadside, to the building facilities such as neighbouring residenter house, factory or highway etc., can all cause greatly
Destruction.In order to slow down the influence of impact force, native stone buffer layer is taken to carry out effectively protecting exactly one kind is cost-effective to arrange
It applies.Buffer layer the most economic and practical is exactly to be made of materials such as stone, sandstone, soil, is made of one or more of which, therefore
The grain diameter of different native stone buffer layers has different buffering effects, and buffering effect can be by the elasticity modulus of buffer layer
Expression.It is relatively coarse to the springform quantifier elimination of native stone buffer layer both at home and abroad at present, only only account for several grain diameters
Range, soft or hard and compaction rate provide corresponding elasticity modulus range.This particle size range is not only relatively coarse, specifically
Particle size range define it is also indefinite, in practical application determine its range it is relatively difficult, actual needs cannot be met：Work as reality
When the available earth rock material in building site is thicker, such as bigger block stone is more than the grain size of cobble, has just surmounted current native stone
Elasticity modulus given range can not determine the value of elasticity modulus, can not also judge whether disclosure satisfy that and slow down rolling stone impact force
Requirement or wasting manpower and material resources.
Publication No. CN 104360389A, publication date are that the Chinese patent literature of on February 18th, 2015 discloses one kind
Tight sandstone reservoir elastic modulus of rock computational methods, which is characterized in that including：Obtain log parameter and tight sandstone reservoir
Petrophysical parameter；According to the log parameter and the petrophysical parameter, in conjunction with the hole crack decay mode pre-established
Type calculates the elastic modulus of rock under high frequency；According to the elastic modulus of rock under the high frequency, it is in harmony mould certainly in conjunction with what is pre-established
Type calculates the high frequency matrix elasticity modulus of rock；Using the high frequency matrix elasticity modulus of the rock, in conjunction with the hole crack
Attenuation model calculates the saturated rock elasticity modulus under optional frequency.
Tight sandstone reservoir elastic modulus of rock computational methods disclosed in the patent document, for the hole of tight sandstone reservoir
The characteristics of porosity, using the petrophysical model suitable for tight sandstone reservoir of foundation, such as：Hole crack attenuation model and from
It is in harmony model and tight sandstone reservoir is analyzed, obtains the elastic modulus of rock of tight sandstone reservoir.But due to not considering to cause
Influence of the specific compactness of close sandstone reservoir rock to elasticity modulus, therefore its computational methods is not suitable for field large scale
The practical calculating of coarse stone buffer layer, it is poor for the applicability of preventing and reducing natural disasters of avalanche, falling rocks.
Invention content
The present invention provides a kind of by buffer layer compactness calculating buffer layer elasticity to overcome the defect of the above-mentioned prior art
The method of modulus, the present invention have fully considered that influence of the specific compactness of native stone to elasticity modulus, computational methods are suitable for open country
The practical calculating of the coarse stone buffer layer of outer large scale, result of calculation is accurate and reliable, for the tool of preventing and reducing natural disasters of avalanche, falling rocks
There is higher applicability of taking precautions against natural calamities.
The present invention is achieved through the following technical solutions：
A method of buffer layer elasticity modulus being calculated by buffer layer compactness, which is characterized in that include the following steps：
A, measuring and calculating obtains native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle nonuniformity coefficient
Cu and native stone compactness S, native stone median particle diameter D refer to the grain diameter that weight percent is 50% in native stone particle, unit mm；Soil
Stone particle nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu include three ranks, uniform grade, substantially
Even grade and uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native 5 Cu≤10 ＜ of stone particle nonuniformity coefficient are
Substantially uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, the native stone particle nonuniformity coefficient calculated by formula 1
Cu judges rank；
Cu=D60/D10Formula 1
In formula, D60The grain diameter for being 60% for weight percent in native stone particle, unit mm；D10For in native stone particle
The grain diameter that weight percent is 10%, unit mm；
B, native stone compactness S is calculated by formula 2；
S=Vm/ V formulas 2
In formula, VmFor native stone minimum volume, unit m3；V is native stone actual volume, unit m3；
C, native stone elasticity modulus M is calculated according to native stone compactness S；
As native stone median particle diameter D >=2mm, it is gravel, cobble or thick native stone, is calculated by formula 3；
M=C1S4.3Formula 3
As native stone median particle diameter 0.02mm≤D ＜ 2mm, it is sandstone, is calculated by formula 4；
M=C2S4.3Formula 4
As native stone median particle diameter D ＜ 0.02mm, for the sandy clay of the clay containing 10%-50%, calculated by formula 5；
M=46.3S3.6Formula 5
Wherein, M is native stone elasticity modulus, units MPa；S is native stone compactness；C1And C2It is coefficient.
The C1And C2It is determined by value table according to native stone particle nonuniform coefficent Cu rank and soil stone median particle diameter D.
The basic principle of the present invention is as follows：
Buffer layer soil stone elasticity modulus is related with native stone grain diameter, also with native stone particle size distribution and native stone buffer layer
Compactness is related.These physical quantity sizes and feature determine the size of native stone buffer layer elasticity modulus, also determine that native stone is slow
Rush the ability and feature of layer cushion impact forces.
The present invention studies through a large number of experiments and theory deduction, has studied native stone buffer layer grain diameter and is buffered with native stone
The relationship of layer elasticity modulus.According to domestic and international achievement in research：The quality of rolling stone impact force and alluvium, movement velocity, springform
Amount, the alluvium direction of motion are related with by the plane included angle of alluvium, also related with by the elasticity modulus of alluvium, these physics
Amount determines the size of rolling stone impact force.
When being native stone buffer layer by alluvium, the order of magnitude of native stone buffer layer elasticity modulus is in 0.3-200MPa, far
Less than Rolling Stone elasticity modulus, the order of magnitude of Rolling Stone elasticity modulus is in 5000-80000MPa.Native stone buffer layer elasticity modulus and Rolling Stone
The relational expression of elasticity modulus is：
Wherein, E is synthetical elastic modulus, units MPa；E1For Rolling Stone elasticity modulus, units MPa；E2For native stone buffer layer bullet
Property modulus, units MPa.
Finally elasticity modulus influential on impact force is synthetical elastic modulus E.When Rolling Stone elasticity modulus is much larger than native stone
When buffer layer elasticity modulus, Rolling Stone elasticity modulus can be ignored, it is only necessary to which native stone buffer layer elasticity modulus can calculate
Rolling Stone is on the buffer layer and by the impact force of the building of buffer layer protection, and this impact force is much smaller than no buffer layer
In the case of Rolling Stone directly impact the impact force of building, and reduced with the reduction of buffer layer elasticity modulus.
Beneficial effects of the present invention are mainly manifested in following aspect：
One, of the invention, " a, measuring and calculating obtain native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone
Grain nonuniform coefficent Cu and native stone compactness S, native stone median particle diameter D refer to the particle that weight percent is 50% in native stone particle
Diameter, unit mm；Native stone particle nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu includes three ranks,
Even grade, substantially uniform grade and uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native stone particle nonuniformity coefficient 5
Cu≤10 ＜ are substantially uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, the native stone particle calculated by formula 1
Nonuniform coefficent Cu judges rank；B, native stone compactness S is calculated by formula 2；C, according to the calculation of characteristic parameters soil stoneshot of native stone
Property modulus M ", fully considered influence of the specific compactness of native stone to elasticity modulus, computational methods are suitable for field large scale
Coarse stone buffer layer practical calculating, result of calculation is accurate and reliable, prevents and reduces natural disasters avalanche, falling rocks with higher
It takes precautions against natural calamities applicability.
Two, of the invention, the specific compactness of native stone is considered to springform for the calculating of native stone buffer layer elasticity modulus
The influence of amount so that result of calculation is more accurate, prevents and reduces natural disasters avalanche, falling rocks with better practical application meaning.
Three, of the invention, native stone grain composition, i.e. uniformity coefficient pair are considered for the calculating of native stone buffer layer elasticity modulus
The influence of elasticity modulus, therefore further improve the accuracy and reliability of result of calculation, protection for avalanche, falling rocks and
It prevents and reduces natural disasters with better directive significance in mountain area.
Four, of the invention, to different soil stone types in native stone buffer layer, such as the coarse native stone of gravel or more, sandstone type
Fine grained soil stone, the native stone containing clay, there is different computational methods so that calculates the accurate of native stone buffer layer elasticity modulus
Property be greatly improved, so as to for design defence impact force measure reliable basis is provided.
Specific implementation mode
Embodiment 1
A method of buffer layer elasticity modulus is calculated by buffer layer compactness, is included the following steps：
A, measuring and calculating obtains native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle nonuniformity coefficient
Cu and native stone compactness S, native stone median particle diameter D refer to the grain diameter that weight percent is 50% in native stone particle, unit mm；Soil
Stone particle nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu include three ranks, uniform grade, substantially
Even grade and uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native 5 Cu≤10 ＜ of stone particle nonuniformity coefficient are
Substantially uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, the native stone particle nonuniformity coefficient calculated by formula 1
Cu judges rank；
Cu=D60/D10Formula 1
In formula, D60The grain diameter for being 60% for weight percent in native stone particle, unit mm；D10For in native stone particle
The grain diameter that weight percent is 10%, unit mm；
B, native stone compactness S is calculated by formula 2；
S=Vm/ V formulas 2
In formula, VmFor native stone minimum volume, unit m3；V is native stone actual volume, unit m3；
C, native stone elasticity modulus M is calculated according to native stone compactness S；
As native stone median particle diameter D >=2mm, it is gravel, cobble or thick native stone, is calculated by formula 3；
M=C1S4.3Formula 3
As native stone median particle diameter 0.02mm≤D ＜ 2mm, it is sandstone, is calculated by formula 4；
M=C2S4.3Formula 4
As native stone median particle diameter D ＜ 0.02mm, for the sandy clay of the clay containing 10%-50%, calculated by formula 5；
M=46.3S3.6Formula 5
Wherein, M is native stone elasticity modulus, units MPa；S is native stone compactness；C1And C2It is coefficient.
C1It is determined by the value table of table 1：
| Cu | Uniformly | It is substantially uniform | It is uneven | Uniformly | It is substantially uniform | It is uneven | Uniformly | It is substantially uniform | It is uneven |
| D(mm) | 2-10 | 10-50 | 50-200 | 10-50 | 50-200 | 2-10 | 50-200 | 2-10 | 10-50 |
| C1 | 58.7 | 156.57 | 454.8 | 99.8 | 250.7 | 167.0 | 159.8 | 92.0 | 284.0 |
Table 1
C2It is determined by the value table of table 2：
Table 2
" a, measuring and calculating obtain native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle heterogeneous system
Number Cu and native stone compactness S, native stone median particle diameter D refer to the grain diameter that weight percent is 50% in native stone particle, unit mm；
Native stone particle nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu includes three ranks, uniform grade, basic
Uniform grade and uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native 5 Cu≤10 ＜ of stone particle nonuniformity coefficient
For substantially uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, the native stone particle heterogeneous system calculated by formula 1
Number Cu judges rank；B, native stone compactness S is calculated by formula 2；C, according to the calculation of characteristic parameters soil stone elasticity modulus M " of native stone,
Fully consider that influence of the specific compactness of native stone to elasticity modulus, computational methods are suitable for the coarse stone of field large scale
The practical calculating of buffer layer, result of calculation is accurate and reliable, for avalanche, falling rocks prevent and reduce natural disasters with it is higher take precautions against natural calamities it is applicable
Property.
Embodiment 2
A method of buffer layer elasticity modulus is calculated by buffer layer compactness, is included the following steps：
A, measuring and calculating obtains native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle nonuniformity coefficient
Cu and native stone compactness S, native stone median particle diameter D refer to the grain diameter that weight percent is 50% in native stone particle, unit mm；Soil
Stone particle nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu include three ranks, uniform grade, substantially
Even grade and uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native 5 Cu≤10 ＜ of stone particle nonuniformity coefficient are
Substantially uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, the native stone particle nonuniformity coefficient calculated by formula 1
Cu judges rank；
Cu=D60/D10Formula 1
In formula, D60The grain diameter for being 60% for weight percent in native stone particle, unit mm；D10For in native stone particle
The grain diameter that weight percent is 10%, unit mm；
B, native stone compactness S is calculated by formula 2；
S=Vm/ V formulas 2
In formula, VmFor native stone minimum volume, unit m3；V is native stone actual volume, unit m3；
C, native stone elasticity modulus M is calculated according to native stone compactness S；
As native stone median particle diameter D >=2mm, it is gravel, cobble or thick native stone, is calculated by formula 3；
M=C1S4.3Formula 3
As native stone median particle diameter 0.02mm≤D ＜ 2mm, it is sandstone, is calculated by formula 4；
M=C2S4.3Formula 4
As native stone median particle diameter D ＜ 0.02mm, for the sandy clay of the clay containing 10%-50%, calculated by formula 5；
M=46.3S3.6Formula 5
Wherein, M is native stone elasticity modulus, units MPa；S is native stone compactness；C1And C2It is coefficient.
The C1And C2It is determined by value table according to native stone particle nonuniform coefficent Cu rank and soil stone median particle diameter D.
Influence of the specific compactness of native stone to elasticity modulus is considered for the calculating of native stone buffer layer elasticity modulus, is made
Result of calculation is more accurate, prevent and reduce natural disasters avalanche, falling rocks with better practical application meaning.
Native stone grain composition is considered for the calculating of native stone buffer layer elasticity modulus, i.e., uniformity coefficient is to elasticity modulus
It influences, therefore further improves the accuracy and reliability of result of calculation, the protection and mountain area for avalanche, falling rocks, which are taken precautions against natural calamities, to be subtracted
Calamity has better directive significance.
To different soil stone type in native stone buffer layer, such as the coarse native stone of gravel or more, the fine grained soil stone of sandstone type,
Native stone containing clay, there is different computational methods so that the accuracy for calculating native stone buffer layer elasticity modulus obtains greatly
Raising, so as to for design defence impact force measure reliable basis is provided.
Claims (2)
1. a kind of method calculating buffer layer elasticity modulus by buffer layer compactness, which is characterized in that include the following steps：
A, measuring and calculating obtains native stone buffer layer particle characteristic parameter, including native stone median particle diameter D, native stone particle nonuniform coefficent Cu and
Native stone compactness S, native stone median particle diameter D refer to the grain diameter that weight percent is 50% in native stone particle, unit mm；Native stone
Grain nonuniform coefficent Cu is calculated by formula 1；Native stone particle nonuniform coefficent Cu includes three ranks, uniform grade, substantially uniform grade
With uneven grade, native stone particle nonuniform coefficent Cu≤5 are uniform grade；Native 5 Cu≤10 ＜ of stone particle nonuniformity coefficient are basic
Uniform grade；Native stone particle nonuniform coefficent Cu ＞ 10 is uneven grade, is sentenced by the native stone particle nonuniform coefficent Cu that formula 1 calculates
Disconnected rank；
Cu=D60/D10Formula 1
In formula, D60The grain diameter for being 60% for weight percent in native stone particle, unit mm；D10For weight hundred in native stone particle
The grain diameter that score is 10%, unit mm；
B, native stone compactness S is calculated by formula 2；
S=Vm/ V formulas 2
In formula, VmFor native stone minimum volume, unit m3；V is native stone actual volume, unit m3；
C, native stone elasticity modulus M is calculated according to native stone compactness S；
As native stone median particle diameter D >=2mm, it is gravel, cobble or thick native stone, is calculated by formula 3；
M=C1S4.3Formula 3
As native stone median particle diameter 0.02mm≤D ＜ 2mm, it is sandstone, is calculated by formula 4；
M=C2S4.3Formula 4
As native stone median particle diameter D ＜ 0.02mm, for the sandy clay of the clay containing 10%-50%, calculated by formula 5；
M=46.3S3.6Formula 5
Wherein, M is native stone elasticity modulus, units MPa；S is native stone compactness；C1And C2It is coefficient.
2. a kind of method calculating buffer layer elasticity modulus by buffer layer compactness according to claim 1, feature exist
In：The C1And C2It is determined by value table according to native stone particle nonuniform coefficent Cu rank and soil stone median particle diameter D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654169.7A CN108664754B (en) | 2018-06-22 | 2018-06-22 | Method for calculating buffer layer elastic modulus from buffer layer compactness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654169.7A CN108664754B (en) | 2018-06-22 | 2018-06-22 | Method for calculating buffer layer elastic modulus from buffer layer compactness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108664754A true CN108664754A (en) | 2018-10-16 |
| CN108664754B CN108664754B (en) | 2020-02-14 |
Family
ID=63773002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810654169.7A Active CN108664754B (en) | 2018-06-22 | 2018-06-22 | Method for calculating buffer layer elastic modulus from buffer layer compactness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108664754B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221603A (en) * | 1979-03-23 | 1980-09-09 | Riguez Associates, A Limited Partnership | Mix design method for asphalt paving mixtures |
| US20110011165A1 (en) * | 2007-02-26 | 2011-01-20 | H-Tpa Innovacios Es Minosegvizsgalo Kft | Method for planning road asphalts |
| US20110208445A1 (en) * | 2010-02-24 | 2011-08-25 | Industry-Academy Cooperation Foundation, Yonsei University | Method of analyzing load-settlement characteristics of top-base foundation |
| CN103033467A (en) * | 2012-12-26 | 2013-04-10 | 陕西科技大学 | Testing method for coplanar dynamic buffering performance of two-dimensional porous material |
| CN104360389A (en) * | 2014-11-12 | 2015-02-18 | 中国石油大学(华东) | Tight sandstone reservoir rock elasticity modulus calculation method |
| CN105203416A (en) * | 2014-06-11 | 2015-12-30 | 卡特彼勒路面机械公司 | System and method for determining modulus of resilience of work material |
| CN107449828A (en) * | 2017-08-22 | 2017-12-08 | 中国水利水电科学研究院 | A kind of rock-fill concrete structure space compactness inspection method and rock-fill concrete structure space compactness evaluation method |
-
2018
- 2018-06-22 CN CN201810654169.7A patent/CN108664754B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221603A (en) * | 1979-03-23 | 1980-09-09 | Riguez Associates, A Limited Partnership | Mix design method for asphalt paving mixtures |
| US20110011165A1 (en) * | 2007-02-26 | 2011-01-20 | H-Tpa Innovacios Es Minosegvizsgalo Kft | Method for planning road asphalts |
| US20110208445A1 (en) * | 2010-02-24 | 2011-08-25 | Industry-Academy Cooperation Foundation, Yonsei University | Method of analyzing load-settlement characteristics of top-base foundation |
| CN103033467A (en) * | 2012-12-26 | 2013-04-10 | 陕西科技大学 | Testing method for coplanar dynamic buffering performance of two-dimensional porous material |
| CN105203416A (en) * | 2014-06-11 | 2015-12-30 | 卡特彼勒路面机械公司 | System and method for determining modulus of resilience of work material |
| CN104360389A (en) * | 2014-11-12 | 2015-02-18 | 中国石油大学(华东) | Tight sandstone reservoir rock elasticity modulus calculation method |
| CN107449828A (en) * | 2017-08-22 | 2017-12-08 | 中国水利水电科学研究院 | A kind of rock-fill concrete structure space compactness inspection method and rock-fill concrete structure space compactness evaluation method |
Non-Patent Citations (1)
| Title |
|---|
| 易伟等: "滚石冲击力计算方法研究", 《山地学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108664754B (en) | 2020-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156118B (en) | High-ground stress Support System in Soft Rock Tunnels excavation supporting construction method | |
| CN107543775B (en) | Method for determining rockfill material filling index and detecting field filling quality based on fractal theory | |
| Zhang et al. | Predicting landslide scenes under potential earthquake scenarios in the Xianshuihe fault zone, Southwest China | |
| CN104389253A (en) | Design method of cement stabilization recycled concrete aggregate (RCA) base or subbase | |
| CN112883464A (en) | Uncertainty prediction method for large deformation of surrounding rock caused by soft rock tunnel excavation | |
| CN108664754A (en) | A method of buffer layer elasticity modulus is calculated by buffer layer compactness | |
| CN115062390A (en) | Deep-buried tunnel extrusion type large deformation grading standard research and analysis method | |
| CN109917117B (en) | Estimation method for residual life of active asphalt pavement | |
| CN101922159A (en) | Method for quickly detecting quality of gravel pile | |
| CN109001426A (en) | Buffer layer elasticity modulus calculation method | |
| CN109030770A (en) | A kind of method that particle characteristic parameter calculates buffer layer elasticity modulus | |
| Tu et al. | Reactivation of a huge ancient landslide by surface water infiltration | |
| CN108845109A (en) | A method of buffer layer elasticity modulus is calculated by the buffer layer uniformity | |
| Hicks et al. | Influence of spatial variability on 3D slope failures | |
| Su et al. | Eco-friendly recycled crushed glass for cushioning boulder impacts | |
| Chien‐Yuan et al. | Discussion of landslide self‐organized criticality and the initiation of debris flow | |
| CN104677735A (en) | Conversion method for resilient modulus of subgrade after soft soil subgrade treatment with limestone soil | |
| CN111794253A (en) | Method for reinforcing high slope of broken rock mass by using prestressed anchor cables | |
| Luo et al. | Experimental study on rockfall impact force applied to frame shed tunnels | |
| CN109061100A (en) | A kind of calculation method of minimal buffering thickness degree | |
| Agaiby et al. | Geotechnical load factored resistance design (LFRD) calculations of settlement and bearing capacity for shallow bridge foundations | |
| Li et al. | Vertical earth pressure design for high-filled cut-and-cover tunnels | |
| Djarwadi et al. | Effect of clay core configuration of the rock fill dams against hydraulic fracturing | |
| Bong et al. | Geostatistical properties of liquefaction vulnerability index for reclaimed land in South Korea | |
| CN108360557A (en) | A kind of segmented retaining Wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |