CN109800508A - The calculation method and terminal device of the empty top plate thickness at rock-socketed piles end - Google Patents
The calculation method and terminal device of the empty top plate thickness at rock-socketed piles end Download PDFInfo
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Abstract
The present invention provides the calculation methods and terminal device of a kind of empty top plate thickness at rock-socketed piles end, comprising: obtains the diameter of embedded rock pile, uniaxial compressive strength, uniaxial tensile strength and the rock mass integrity index of the rock of the empty top plate at rock-socketed piles end；According to the uniaxial compressive strength and uniaxial tensile strength of rock, the soft or hard level index of rock is calculated；According to the rock mass integrity index of rock, stake bottom reduction of live load coefficient is determined；According to the soft or hard level index of stake bottom reduction of live load coefficient and rock, the first coefficient is calculated to third coefficient；According to the uniaxial compressive strength and rock mass integrity index of rock, the rock mass classification index of empty top plate is calculated；According to the diameter of embedded rock pile, rock mass classification index and the first coefficient to third coefficient, the thickness of empty top plate is calculated.The present invention has comprehensively considered every factor of empty top plate, improves the accuracy for calculating empty top plate critical thickness, lays the foundation to rationally design Vertical Bearing Capacity of Rock-socketed Pile.
Description
Technical field
The invention belongs to pile bearing capacity computing technique field more particularly to a kind of empty top plate thicknesses at rock-socketed piles end
Calculation method and terminal device.
Background technique
In order to guarantee that the stability of embedded rock pile, China's related specifications give rule to supporting course thickness needed for rock-socketed piles end
Definite value: " Code for design of building (GB 50007-2011) " requires 3 times of piles set into rock end or less stake diameter and is not less than
It should should face sky without rock mass without weak intercalated layer, fractured zones and Cave distribution, and in stake bottom stress range of scatter within the scope of 5m
Face；" technical code for building pile foundation (JGJ 94-2008) " requires the thickness of the hard supporting course in stake end or less not to be preferably less than 3 times of stake diameters；
" Code for investigation of geotechnical engineering (GB 50021-2001) (2009) " require the depth of exploration of Big-Diameter Rock-Embedded Pile should be an end with
3 times and no less than 5m of lower stake diameter, when adjacent studs bottom and when bedrock surface big rise and fall should suitably deepen；" Guangdong Province's building
Basic design specification of the foundation (DBJ 15-31-2003) " regulation supports the thickness of rock stratum not less than 3 times of stake diameters and not below stake end
Less than 2m, when top plate, which meets punching bearing capacity, to be required, the thickness of top plate is not less than solution cavity planar dimension.
It can be seen that when rock-socketed piles end exists, when underliing solution cavity, stake transverse plane Upper Plate of Karst Cave thickness below is not answered small
In 3 times of stake diameters.Then, the main reference index of related specifications is foundation pile diameter, do not account for cavity it is relevant it is other because
The calculated value of the influence of element, the empty top plate thickness to rock-socketed piles end when cavity exists is inaccurate.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of calculation method of the empty top plate thickness at rock-socketed piles end and ends
End equipment, with solve in the prior art in the case that solution cavity there are the empty top plate thickness to rock-socketed piles end calculated value not
Accurate problem.
The first aspect of the embodiment of the present invention provides a kind of calculation method of the empty top plate thickness at rock-socketed piles end, packet
It includes:
Obtain the uniaxial compressive strength σ of the rock of the empty top plate at the stake end of the diameter d of embedded rock pile, the embedded rock pilec, it is single
Axis tensile strength sigmatWith rock mass integrity index Kv；
According to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, the soft or hard degree for calculating the rock refers to
Mark miValue；
According to the rock mass integrity index K of the rockv, determine stake bottom reduction of live load system corresponding to the empty top plate
Number ψrValue；
According to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the empty top plate rock
Soft or hard level index miValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3；
According to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the rock mass of the empty top plate
The value of graded index RMR；
According to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and first coefficient
χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
The second aspect of the embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer-readable instruction, and the computer-readable instruction realizes following steps when being executed by processor:
Obtain the uniaxial compressive strength σ of the rock of the empty top plate at the stake end of the diameter d of embedded rock pile, the embedded rock pilec, it is single
Axis tensile strength sigmatWith rock mass integrity index Kv；
According to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, the soft or hard degree for calculating the rock refers to
Mark miValue；
According to the rock mass integrity index K of the rockv, determine stake bottom reduction of live load system corresponding to the empty top plate
Number ψrValue；
According to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the empty top plate rock
Soft or hard level index miValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3；
According to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the rock mass of the empty top plate
The value of graded index RMR；
According to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and first coefficient
χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
The third aspect of the embodiment of the present invention provides a kind of terminal device, including memory, processor and is stored in
In the memory and the computer-readable instruction that can run on the processor, the processor executes the computer can
Following steps are realized when reading instruction:
Obtain the uniaxial compressive strength σ of the rock of the empty top plate at the stake end of the diameter d of embedded rock pile, the embedded rock pilec, it is single
Axis tensile strength sigmatWith rock mass integrity index Kv；
According to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, the soft or hard degree for calculating the rock refers to
Mark miValue；
According to the rock mass integrity index K of the rockv, determine stake bottom reduction of live load system corresponding to the empty top plate
Number ψrValue；
According to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the empty top plate rock
Soft or hard level index miValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3；
According to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the rock mass of the empty top plate
The value of graded index RMR；
According to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and first coefficient
χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
The present invention provides the calculation methods and terminal device of a kind of empty top plate thickness at rock-socketed piles end, comprising: obtains
Take the diameter of embedded rock pile, the uniaxial compressive strength of the rock of the empty top plate at rock-socketed piles end, uniaxial tensile strength and rock mass are complete
Whole sex index；According to the uniaxial compressive strength and uniaxial tensile strength of rock, the soft or hard level index of rock is calculated；According to rock
Rock mass integrity index, determine stake bottom reduction of live load coefficient；Referred to according to the soft or hard degree of stake bottom reduction of live load coefficient and rock
Mark calculates the first coefficient to third coefficient；According to the uniaxial compressive strength and rock mass integrity index of rock, empty top plate is calculated
Rock mass classification index；According to the diameter of embedded rock pile, rock mass classification index and the first coefficient to third coefficient, empty top plate is calculated
Thickness.The present invention has comprehensively considered every factor of empty top plate, can directly obtain cavity by calculating using the present invention
The critical thickness of top plate improves the accuracy for calculating empty top plate critical thickness, specifies embedded rock pile and meet stability requirement
The thickness of minimum cavity top plate, lays the foundation to rationally design Vertical Bearing Capacity of Rock-socketed Pile.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is that a kind of process of the calculation method of the empty top plate thickness at rock-socketed piles end provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is a kind of structural frames of the computing device of the empty top plate thickness at rock-socketed piles end provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of showing for computing terminal equipment of the empty top plate thickness at rock-socketed piles end provided in an embodiment of the present invention
It is intended to.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
The embodiment of the invention provides a kind of calculation methods of the empty top plate thickness at rock-socketed piles end.In conjunction with Fig. 1, the party
Method includes:
S101, obtain the diameter d of embedded rock pile, the stake end of the embedded rock pile empty top plate rock uniaxial compressive strength
σc, uniaxial tensile strength σtWith rock mass integrity index Kv。
Specifically, the cavity at the stake end of the diameter d of embedded rock pile, the embedded rock pile can be obtained by way of reconnoitring and measuring
The uniaxial compressive strength σ of the rock of top platec, uniaxial tensile strength σtWith rock mass integrity index Kv。
S102, according to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, calculate the soft or hard journey of the rock
Spend index miValue.
Optionally, the soft or hard level index m of the rock is calculated by following formulaiValue:
S103, according to the rock mass integrity index K of the rockv, determine stake bottom load corresponding to the empty top plate
Reduction coefficient ψrValue.
Optionally, if KvGreater than 0.75, then ψrEqual to 0.5；
If KvIt is less than or equal to 0.75 greater than 0.55, then ψrEqual to 0.4；
KvIt is less than or equal to 0.55 greater than 0.35, then ψrEqual to 0.3；
KvIt is less than or equal to 0.35 greater than 0.15, then ψrEqual to 0.2；
KvLess than or equal to 0.15, then ψrEqual to 0.1.
S104, according to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the empty top plate
The soft or hard level index m of rockiValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3。
Optionally, if ψrEqual to 0.1, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.2, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.3, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.4, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.5, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
S105, according to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the empty top plate
The value of rock mass classification index RMR.
Optionally, the value of the rock mass classification index RMR of the empty top plate is calculated by following formula:
RMR=0.4923 σc+41.0250Kv+3.1540
S106, according to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and described the
One coefficient χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
Optionally, in embodiments of the present invention, critical radius-thickness ratio formula is established, the formula is for indicating facing for empty top plate
Boundary's thickness h meets the minimum thickness of stability, the ratio with embedded rock pile diameter d.
The formula are as follows:
Based on the formula, in the rock of the diameter d, the empty top plate that make embedded rock pile by step S01 to step S105
The value of body graded index RMR and the first coefficient χ1, the second coefficient χ2With third coefficient χ3In known situation, by as follows
Formula calculates the critical thickness h of the empty top plate:
Further, technical solution proposed by the present invention, the embodiment of the present invention provide following example for ease of understanding:
The log sheet on certain case history test pile stratum is illustrated in fig. 1 shown below.Solution cavity is about 25m apart from earth's surface depth, molten
Height of holes is 2.27m, and for Upper Plate of Karst Cave with a thickness of 0.72m, solution cavity across footpath takes 5.0m, and embedded rock pile diameter is 0.8m.According to actual measurement number
According to Upper Plate of Karst Cave rock mass is micro- famp, density 2710kg/m3, the uniaxial compressive strength σ of rockc100MPa is taken, it is single
Axis tensile strength sigmat11.0MPa is taken, core is broken, and taking rate is low, and Rock Mass Integrality is poor, rock mass integrity index KvTake 0.3.
According to the uniaxial compressive strength σ of rockcWith uniaxial tensile strength σt, calculate the soft or hard level index of the rock:
Rock mass integrity index KvWhen taking 0.3, due to KvIt is less than or equal to 0.35 greater than 0.15, then ψrEqual to 0.2；
Work as ψrWhen equal to 0.2, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
Since m is calculatedi=9, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Value difference
It is 222.04,44.68 and 0.3963；
According to the uniaxial compressive strength σ of rockcWith rock mass integrity index Kv, calculate the rock mass classification index of empty top plate
RMR=0.4923 × 100+41.0250 × 0.3+3.1540=64.69；
According to the value and the first coefficient χ of the rock mass classification index RMR of empty top plate1, the second coefficient χ2With third coefficient χ3's
Value, brings formula into:
Obtain the value of critical radius-thickness ratio
Since embedded rock pile diameter is 0.8 meter, then the minimum thickness of empty top plate, i.e. critical thickness is 1.624 meters, is greater than sky
0.72 meter of the actual (real) thickness of hole top plate, when illustrating that foundation pile in-rock segment end resistance plays one's part to the full, Upper Plate of Karst Cave works as unstability
Preceding Upper Plate of Karst Cave thickness cannot provide enough end resistances, and embedded rock pile wears solution cavity under needing at this time and to be embedded in solution cavity bottom plate certain
Depth is to improve its ultimate bearing capacity.
The present invention provides a kind of calculation methods of the empty top plate thickness at rock-socketed piles end, comprising: obtains embedded rock pile
Diameter, uniaxial compressive strength, uniaxial tensile strength and the rock mass integrity index of the rock of the empty top plate at rock-socketed piles end；Root
According to the uniaxial compressive strength and uniaxial tensile strength of rock, the soft or hard level index of rock is calculated；It is complete according to the rock mass of rock
Sex index determines stake bottom reduction of live load coefficient；According to the soft or hard level index of stake bottom reduction of live load coefficient and rock, first is calculated
Coefficient is to third coefficient；According to the uniaxial compressive strength and rock mass integrity index of rock, the rock mass classification of empty top plate is calculated
Index；According to the diameter of embedded rock pile, rock mass classification index and the first coefficient to third coefficient, the thickness of empty top plate is calculated.This
Invention has comprehensively considered every factor of empty top plate, can directly obtain the critical of empty top plate by calculating using the present invention
Thickness improves the accuracy for calculating empty top plate critical thickness, specifies the minimum cavity top that embedded rock pile meets stability requirement
The thickness of plate lays the foundation to rationally design Vertical Bearing Capacity of Rock-socketed Pile.
Fig. 2 is a kind of computing device schematic diagram of the empty top plate thickness at rock-socketed piles end provided in an embodiment of the present invention,
In conjunction with Fig. 2, which includes: parameter acquiring unit 21, the soft or hard level index computing unit 22 of rock, stake bottom reduction of live load coefficient
Computing unit 23, the first coefficient to third coefficient calculation unit 24, rock mass classification indicator calculating unit 25, empty top plate thickness meter
Calculate unit 26；
The parameter acquiring unit 21, for obtaining the empty top plate of the diameter d of embedded rock pile, the stake end of the embedded rock pile
The uniaxial compressive strength σ of rockc, uniaxial tensile strength σtWith rock mass integrity index Kv；
The soft or hard level index computing unit 22 of rock, for the uniaxial compressive strength σ according to the rockcAnd single shaft
Tensile strength sigmat, calculate the soft or hard level index m of the rockiValue；
The stake bottom reduction of live load coefficient calculation unit 23, for the rock mass integrity index K according to the rockv, really
Stake bottom reduction of live load coefficient ψ corresponding to the fixed empty top platerValue；
First coefficient is to third coefficient calculation unit 24, for the stake bottom load according to corresponding to the empty top plate
Reduction coefficient ψrValue and the empty top plate rock soft or hard level index miValue, calculate the first coefficient χ1, the second system
Number χ2With third coefficient χ3；
The rock mass classification indicator calculating unit 25, for the uniaxial compressive strength σ according to the rockcIt is complete with rock mass
Sex index Kv, calculate the value of the rock mass classification index RMR of the empty top plate；
The cavity top plate thickness computing unit 26, for the rock according to the diameter d of the embedded rock pile, the empty top plate
The value of body graded index RMR and the first coefficient χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness of the empty top plate
Spend h.
Optionally, the soft or hard level index computing unit 22 of the rock is used for:
The soft or hard level index m of the rock is calculated by following formulaiValue:
Optionally, stake bottom reduction of live load coefficient calculation unit 23 is used for:
If KvGreater than 0.75, then ψrEqual to 0.5；
If KvIt is less than or equal to 0.75 greater than 0.55, then ψrEqual to 0.4；
KvIt is less than or equal to 0.55 greater than 0.35, then ψrEqual to 0.3；
KvIt is less than or equal to 0.35 greater than 0.15, then ψrEqual to 0.2；
KvLess than or equal to 0.15, then ψrEqual to 0.1.
Optionally, the first coefficient to third coefficient calculation unit 24 is used for:
If ψrEqual to 0.1, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.2, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.3, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.4, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.5, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
Optionally, rock mass classification indicator calculating unit 25 is used for:
The value of the rock mass classification index RMR of the empty top plate is calculated by following formula:
RMR=0.4923 σc+41.0250Kv+3.1540
Optionally, empty top plate thickness computing unit 26 is used for:
The thickness h of the empty top plate is calculated by following formula:
The present invention provides a kind of computing device of the empty top plate thickness at rock-socketed piles end, the device is by obtaining embedding rock
The diameter of stake, uniaxial compressive strength, uniaxial tensile strength and the Rock Mass Integrality of the rock of the empty top plate at rock-socketed piles end refer to
Number；According to the uniaxial compressive strength and uniaxial tensile strength of rock, the soft or hard level index of rock is calculated；According to the rock mass of rock
Perfection Index determines stake bottom reduction of live load coefficient；According to the soft or hard level index of stake bottom reduction of live load coefficient and rock, calculate
First coefficient is to third coefficient；According to the uniaxial compressive strength and rock mass integrity index of rock, the rock mass of empty top plate is calculated
Graded index；According to the diameter of embedded rock pile, rock mass classification index and the first coefficient to third coefficient, the thickness of empty top plate is calculated
Degree.The present invention has comprehensively considered every factor of empty top plate, can directly be obtained by calculating using device provided by the invention
To the critical thickness of empty top plate, the accuracy for calculating empty top plate critical thickness is improved, embedded rock pile is specified and meets stability
It is required that minimum empty top plate thickness, lay the foundation to rationally design Vertical Bearing Capacity of Rock-socketed Pile.
Fig. 3 is a kind of schematic diagram of terminal device provided in an embodiment of the present invention.As shown in figure 3, the terminal of the embodiment
Equipment 3 includes: processor 30, memory 31 and is stored in the memory 31 and can run on the processor 30
Computer program 32, for example, rock-socketed piles end empty top plate thickness calculation procedure.The processor 30 executes the calculating
The step in the calculation method embodiment of the empty top plate thickness at above-mentioned each rock-socketed piles end is realized when machine program 32, such as is schemed
Step 101 shown in 1 is to 106, alternatively, the processor 30 realizes that above-mentioned each device is implemented when executing the computer program 32
The function of each module/unit in example, such as the function of module 21 to 26 shown in Fig. 2.
Illustratively, the computer program 32 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 31, and are executed by the processor 30, to complete the present invention.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 32 in the terminal device 3 is described.
The terminal device 3 can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The terminal device may include, but be not limited only to, processor 30, memory 31.It will be understood by those skilled in the art that Fig. 3
The only example of terminal device 3 does not constitute the restriction to terminal device 3, may include than illustrating more or fewer portions
Part perhaps combines certain components or different components, such as the terminal device can also include input-output equipment, net
Network access device, bus etc..
The processor 30 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 31 can be the internal storage unit of the terminal device 3, such as the hard disk or interior of terminal device 3
It deposits.The memory 31 is also possible to the External memory equipment of the terminal device 3, such as be equipped on the terminal device 3
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 31 can also both include the storage inside list of the terminal device 3
Member also includes External memory equipment.The memory 31 is for storing needed for the computer program and the terminal device
Other programs and data.The memory 31 can be also used for temporarily storing the data that has exported or will export.
The embodiment of the present invention also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has
Computer program, the computer program realize the cavity at rock-socketed piles end described in any of the above-described embodiment when being executed by processor
The step of calculation method of top plate thickness.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the essence of corresponding technical solution is departed from the spirit and scope of the technical scheme of various embodiments of the present invention, it should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of calculation method of the empty top plate thickness at rock-socketed piles end, which is characterized in that this method comprises:
Obtain the uniaxial compressive strength σ of the rock of the empty top plate at the stake end of the diameter d of embedded rock pile, the embedded rock pilec, it is uniaxial anti-
Tensile strength σtWith rock mass integrity index Kv；
According to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, calculate the soft or hard level index m of the rocki
Value；
According to the rock mass integrity index K of the rockv, determine stake bottom reduction of live load coefficient ψ corresponding to the empty top plater
Value；
According to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the empty top plate rock it is soft or hard
Level index miValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3；
According to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the rock mass classification of the empty top plate
The value of index RMR；
According to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and the first coefficient χ1,
Two coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
2. the calculation method of the empty top plate thickness at rock-socketed piles end according to claim 1, which is characterized in that described
According to the uniaxial compressive strength σ of the rockcWith uniaxial tensile strength σt, calculate the soft or hard level index m of the rockiValue packet
It includes:
The soft or hard level index m of the rock is calculated by following formulaiValue:
3. the calculation method of the empty top plate thickness at rock-socketed piles end according to claim 1, which is characterized in that described
According to the rock mass integrity index K of the rockv, determine stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue packet
It includes:
If KvGreater than 0.75, then ψrEqual to 0.5；
If KvIt is less than or equal to 0.75 greater than 0.55, then ψrEqual to 0.4；
KvIt is less than or equal to 0.55 greater than 0.35, then ψrEqual to 0.3；
KvIt is less than or equal to 0.35 greater than 0.15, then ψrEqual to 0.2；
KvLess than or equal to 0.15, then ψrEqual to 0.1.
4. the calculation method of the empty top plate thickness at rock-socketed piles end according to claim 3, which is characterized in that described
According to stake bottom reduction of live load coefficient ψ corresponding to the empty top platerValue and the soft or hard degree of rock of the empty top plate refer to
Mark miValue, calculate the first coefficient χ1, the second coefficient χ2With third coefficient χ3Include:
If ψrEqual to 0.1, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.2, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.3, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.4, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
If ψrEqual to 0.5, then the first coefficient χ is calculated1, the second coefficient χ2With third coefficient χ3Formula are as follows:
5. the calculation method of the empty top plate thickness at rock-socketed piles end according to claim 1, which is characterized in that described
According to the uniaxial compressive strength σ of the rockcWith rock mass integrity index Kv, calculate the rock mass classification index RMR of the empty top plate
Value include:
The value of the rock mass classification index RMR of the empty top plate is calculated by following formula:
RMR=0.4923 σc+41.0250Kv+3.1540
6. the calculation method of the empty top plate thickness at rock-socketed piles end according to claim 1-5, feature exist
In described according to the diameter d of the embedded rock pile, the value of the rock mass classification index RMR of the empty top plate and first coefficient
χ1, the second coefficient x2With third coefficient x3, the thickness h for calculating the empty top plate includes:
The thickness h of the empty top plate is calculated by following formula:
7. a kind of computing device of the empty top plate thickness at rock-socketed piles end, which is characterized in that the device includes: that parameter obtains list
Member, the soft or hard level index computing unit of rock, stake bottom reduction of live load coefficient calculation unit, the first coefficient to third coefficient calculate single
Member, rock mass classification indicator calculating unit, empty top plate thickness computing unit；
The parameter acquiring unit, the rock of the empty top plate for obtaining the diameter d of embedded rock pile, the stake end of the embedded rock pile
Uniaxial compressive strength σc, uniaxial tensile strength σtWith rock mass integrity index Kv；
The soft or hard level index computing unit of rock, for the uniaxial compressive strength σ according to the rockcIt is strong with uniaxial tension
Spend σt, calculate the soft or hard level index m of the rockiValue；
The stake bottom reduction of live load coefficient calculation unit, for the rock mass integrity index K according to the rockv, determine the sky
Reduction of live load coefficient ψ in stake bottom corresponding to the top plate of holerValue；
First coefficient is to third coefficient calculation unit, for the stake bottom reduction of live load system according to corresponding to the empty top plate
Number ψrValue and the empty top plate rock soft or hard level index miValue, calculate the first coefficient χ1, the second coefficient χ2With
Third coefficient x3；
The rock mass classification indicator calculating unit, for the uniaxial compressive strength σ according to the rockcAnd rock mass integrity index
Kv, calculate the value of the rock mass classification index RMR of the empty top plate；
The cavity top plate thickness computing unit, for the rock mass classification according to the diameter d of the embedded rock pile, the empty top plate
The value of index RMR and the first coefficient χ1, the second coefficient χ2With third coefficient χ3, calculate the thickness h of the empty top plate.
8. the computing device of the empty top plate thickness at rock-socketed piles end according to claim 7, which is characterized in that the rock
The soft or hard level index computing unit of stone is used for:
The soft or hard level index m of the rock is calculated by following formulaiValue:
9. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 6 of realization the method.
10. a kind of terminal device, which is characterized in that the terminal device includes memory, processor, is stored on the memory
There is the computer program that can be run on the processor, is realized when the processor executes the computer program as right is wanted
The step of seeking any one of 1 to 6 the method.
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