CN108166540A - Ground Method for Checking and device - Google Patents
Ground Method for Checking and device Download PDFInfo
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- CN108166540A CN108166540A CN201711447764.5A CN201711447764A CN108166540A CN 108166540 A CN108166540 A CN 108166540A CN 201711447764 A CN201711447764 A CN 201711447764A CN 108166540 A CN108166540 A CN 108166540A
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- deformation
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- sedimentation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The present invention relates to ground Method for Checking and devices, belong to Foundation Design technical field.The method includes：Load, foundation area information and the strength characteristic of the rock stratum of object yet to be built are obtained, the base pressure angle of flare of the rock stratum is determined according to the strength characteristic of the rock stratum；Stress value of the basis to the lower sleeping soil layer of the object yet to be built is determined according to the load of the object yet to be built, foundation area information and the base pressure angle of flare；It obtains and calculates the determining corresponding deformation of sedimentation of the ground, judge whether the stress value and the deformation of sedimentation are satisfied by sets requirement, the checking computation results of the ground are determined according to judging result.Above-mentioned technical proposal, the simplification design problem of isolated footing in the case of solving no specification and can following, checking computations of the realization to ground can be followed in no specification by realizing, and designed by simple mode optimized integration, basic engineering is made to meet safety and the requirement of economy.
Description
Technical field
The present invention relates to Foundation Design technical field, more particularly to ground Method for Checking, device, computer-readable storage
Medium and computer equipment.
Background technology
According to《Code for design of building》6.5.1 the regulation of item：The first class building being located on rock foundation,
When two kinds of Deformation Module of Rock Mass reach 2 times and 2 times or more, deformation analysis should be carried out.In process of the present invention is realized, invention
People has found that at least there are the following problems in the prior art：For non-rock foundation, as substrate is (namely medium for middle decayed basalt
Decayed basalt), below rock stratum be clay and the foundation form (as shown in Figure 1) of fine sand, there is no do not provide such as in existing specification
What carries out deformation analysis and how to carry out checking of bearing capacity.Decayed basalt interlayer ground firepower in not yet discovery domestic at present
The cases of design of power plant boiler foundations plinth.The basic engineering being closer to therewith is built using the larger high level of pillar loading
The bulk mat foundation built or strip footing (as shown in Figure 2).But above-mentioned foundation area is larger, amount of concrete and steel
Muscle amount is larger, and cost is higher.Therefore, it is necessary to find a kind of mode by simplification, applicable to check foundation, and then
Judge the method whether a certain basis meets safety and the requirement of economy.
Invention content
Based on this, the present invention provides ground Method for Checking and devices, can follow realization to ground in no specification
Checking computations, by simple mode optimized integration design, basic engineering is made to meet safety and the requirement of economy.
The content of the embodiment of the present invention is as follows：
A kind of ground Method for Checking, the ground include rock stratum and lower sleeping soil layer, the described method comprises the following steps：It obtains
Load, foundation area information and the strength characteristic of the rock stratum of object yet to be built are taken, is determined according to the strength characteristic of the rock stratum
The base pressure angle of flare of the rock stratum；Expanded according to the load of the object yet to be built, foundation area information and the base pressure
Scattered angle determines stress value of the basis to the lower sleeping soil layer of the object yet to be built；It is corresponding heavy to obtain the ground for calculating and determining
Deflection is dropped, judges whether the stress value and the deformation of sedimentation are satisfied by sets requirement, institute is determined according to judging result
State the checking computation results of ground.
It is described according to the load of the object yet to be built, foundation area information and the substrate in one of the embodiments,
Pressure diffusion angle determines the step of basis of the object yet to be built is to the stress value of the lower sleeping soil layer, including：According to described yet to be built
The foundation area information of object and the base pressure angle of flare determine the area of the lower sleeping soil layer；According to the lower sleeping soil layer
The load of area and the object yet to be built calculates stress value of the basis to the lower sleeping soil layer of the object yet to be built.
The deformation of sedimentation for obtaining the ground in one of the embodiments, judges the stress value and described
The step of whether deformation of sedimentation is satisfied by sets requirement, obtains judging result, including：Obtain the bearing capacity of the lower sleeping soil layer
The stress value with the bearing capacity measured value is compared, judges whether the stress value meets sets requirement by measured value；
Preset deformation of sedimentation threshold value is obtained, the deformation of sedimentation is compared with the preset deformation of sedimentation threshold value,
Judge whether the deformation of sedimentation meets sets requirement.
The deformation of sedimentation of the ground is obtained by equation below in one of the embodiments,：
Wherein,
In above-mentioned formula, s is deformation of sedimentation；α is settlement experience coefficient；P0For net foundation pressure；It is wide based on b
Degree；The equivalent value of native deformation modulus in depth bounds is calculated for deformation；N is the number of plies of soil；H calculates depth for deformation；hiFor
Substrate plays i-th layer of native thickness from top to bottom,hnThickness for horizon d；E0nDistorted pattern for horizon d
Amount；E0iThe deformation modulus native for i-th layer.
The rock stratum is middle decayed basalt in one of the embodiments,；The strength characteristic according to the rock stratum
The step of base pressure angle of flare for determining the rock stratum, includes：According to the basaltic whole raft plate effect of middle weathering, institute is determined
The base pressure angle of flare for stating rock stratum is 40 °.
Correspondingly, the embodiment of the present invention provides a kind of ground checking computations device, the ground includes rock stratum and lower sleeping soil layer,
It is characterized in that, the ground checking computations device includes：Information determination module, for obtaining the load of object yet to be built, foundation area letter
Breath and the strength characteristic of the rock stratum determine the base pressure angle of flare of the rock stratum according to the strength characteristic of the rock stratum；
Stress value determining module, for according to the object yet to be built load, foundation area information and the base pressure angle of flare it is true
The basis of the fixed object yet to be built is to the stress value of the lower sleeping soil layer；And bearing capacity and deformation of sedimentation check module, use
The determining corresponding deformation of sedimentation of the ground is calculated in obtaining, judges whether the stress value and the deformation of sedimentation are equal
Meet sets requirement, the checking computation results of the ground are determined according to judging result.
The stress value determining module includes in one of the embodiments,：Soil layer area calculation module, for according to institute
It states the foundation area information of object yet to be built and the base pressure angle of flare determines the area of the lower sleeping soil layer；Soil layer stress value meter
Module is calculated, the basis of the object yet to be built is calculated to institute for the load of the area according to the lower sleeping soil layer and the object yet to be built
State the stress value of lower sleeping soil layer.
The bearing capacity and deformation of sedimentation checking computations module include in one of the embodiments,：Stress value checking computations
For obtaining the bearing capacity measured value of the lower sleeping soil layer, the stress value and the bearing capacity measured value are compared for module
It is right, judge whether the stress value meets sets requirement；Deflection checks submodule, for obtaining preset deformation of sedimentation threshold
Value, the deformation of sedimentation with the preset deformation of sedimentation threshold value is compared, whether judges the deformation of sedimentation
Meet sets requirement.
A kind of computer readable storage medium, is stored thereon with computer program, which realizes when being executed by processor
The step of method described above, passes through the computer program of its storage.
A kind of computer equipment can be run on a memory and on a processor including memory, processor and storage
The step of computer program, the processor realizes method described above when performing described program.
Above-mentioned technical proposal determines base pressure angle of flare according to the strength characteristic of rock stratum and obtains object yet to be built on ground
Load, and then calculate the stress value and deformation of sedimentation of the soil layer that crouches under rock stratum.After calculating above-mentioned parameter value, the soil that crouches under rock stratum is judged
Whether the stress value and deformation of sedimentation of layer meet the requirements, and determine that corresponding ground checking computations pass through when both meeting the requirements,
And then the object yet to be built can be built on the ground.At present, foundation form is without existing proper calculation method, the embodiment of the present invention
By determining base pressure angle of flare, the calculation formula for specific soil layer is employed, is realized by simple method to rock
The checking computations of the stress value and deflection of the lower sleeping soil layer of layer.
Description of the drawings
Fig. 1 is the schematic diagram of the middle decayed basalt interlayer ground in one embodiment；
Fig. 2 is the schematic diagram of the raft foundation for the skyscraper that pillar loading is larger in one embodiment；
Fig. 3 is the schematic flow chart of ground Method for Checking in one embodiment；
Fig. 4 is the middle decayed basalt interlayer ground effective stress scatter diagram in one embodiment；
Fig. 5 is the boiler foundation layout drawing on the middle decayed basalt interlayer ground in one embodiment；
Fig. 6 is Midas/GTS NX three-dimensional fluctuating soil layer geological models in one embodiment；
Fig. 7 is the isolated footing model of Midas/GTS NX finite elements in one embodiment；
Fig. 8 is the solum settlement analysis result of Midas/GTS NX finite elements in one embodiment；
Fig. 9 is the structure diagram that ground checks device in one embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
According to《Code for design of building》The 6.5.1 articles of the regulation of GB5007-2011：It is located at rock foundation
On first class building, when two kinds of Deformation Module of Rock Mass reach 2 times and 2 times or more, deformation analysis should be carried out.But needle
To non-rock foundation, substrate as shown in Figure 1 is middle decayed basalt, below rock stratum is clay foundation form similar with sand,
How this carries out deformation analysis and how to carry out checking of bearing capacity, existing country《Code for design of building》
GB5007-2011 and Guangdong Province standard《Code for design of building》DBJ 15-31-2003 are without calculating side accordingly
Method.
Meanwhile decayed basalt interlayer ground boiler room isolated footing, strip footing or raft in not yet discovery domestic at present
The cases of design on plate basis, most similar therewith is the bulk mat foundation of the larger skyscraper of pillar loading or bar shaped base
The design of the raft foundations such as plinth, as shown in Figure 2.But the area of raft foundation etc. is larger, amount of concrete and reinforcing bar amount compared with
Greatly, cost is higher, be easy to cause waste.
The embodiment of the present invention provides a kind of ground Method for Checking and corresponding ground checking computations device.It should be noted that
The embodiment of the present invention illustrates ground Method for Checking and device by taking middle decayed basalt as an example, but the ground Method for Checking and dress
Putting can also apply in other grounds check scene.Ground Method for Checking and device are described in detail individually below.
As shown in figure 3, the schematic flow chart of the ground Method for Checking for an embodiment.The ground that the embodiment provides
Method for Checking mainly includes step S310 to step S330, and detailed description are as follows：
S310, load, foundation area information and the strength characteristic of the rock stratum for obtaining object yet to be built, according to the rock stratum
Strength characteristic determine the base pressure angle of flare of the rock stratum.
Ground in the embodiment of the present invention includes rock stratum and lower sleeping soil layer corresponding with the rock stratum.Sleeping soil layer can be with down
For soil layers such as clay corresponding below rock stratum, sands.As shown in Figure 1, the rock stratum and the lower sleeping soil layer form object yet to be built
Ground.
Optionally, the method for obtaining object load yet to be built may be used common method and first calculate each composition portion in object yet to be built
The load divided, then by each Load Combination and then obtain the overall load of the object yet to be built.
Wherein, which can be the rock stratum that basalt etc. has certain whole raft plate effect, these rock stratum may be at
Different states, such as severely-weathered, middle weathering, gentle breeze state.Specifically, which is middle decayed basalt.Rock stratum it is strong
It can be the representative feature in rock stratum to spend feature, as whether rock stratum has the compression modulus of whole raft plate effect and rock stratum
Etc. information.The foundation area information of the object yet to be built of rock stratum can be that the rock stratum is believed relative to the foundation area of the object yet to be built on ground
Breath.
In addition, object yet to be built can be various buildings, workshop, boiler etc..Specifically, which is boiler room.
Described in S320, the load according to the object yet to be built, foundation area information and the base pressure angle of flare determine
The basis of object yet to be built is to the stress value of the lower sleeping soil layer.
Wherein, the stress value of lower sleeping soil layer refers to the power that the basis of object yet to be built applies lower sleeping soil layer.Instantly crouch soil layer
Bearing capacity when being more than the stress value, which can bear the load of the object yet to be built, meet the item for building the object yet to be built
Part.
S330, the corresponding deformation of sedimentation of the ground for calculating and determining is obtained, judges the stress value and the sedimentation
Whether deflection is satisfied by sets requirement, and the checking computation results of the ground are determined according to judging result.
Calculating for interlayer foundation settlement deformation amount, since the compression modulus of many rock stratum is very big, in engineering design
It is upper that its compressive deformation can be neglected.Thus, it is only required to the deformation of sedimentation S for calculating lower sleeping soil layer can obtain the sedimentation and deformation of ground
Amount.
This step considers the stress value for the soil layer that crouches under rock stratum and after whether deformation of sedimentation meets the requirements, and obtains the ground
The checking computation results of base.
The present embodiment, it is simple in this way using the calculation formula for specific soil layer by determining base pressure angle of flare
Single method realizes the checking computations of stress value and deflection to the lower sleeping soil layer of rock stratum.In the premise for meeting huge load
Under, it avoids and blindly does big basis (principle is unknown, blindly increases foundation area, is designed to strip footing or raft foundation),
With higher economic benefit.
In one embodiment, it is described to be expanded according to the load of the object yet to be built, foundation area information and the base pressure
Scattered angle determines the step of basis of the object yet to be built is to the stress value of the lower sleeping soil layer, including：According to the base of the object yet to be built
Plinth area information and the base pressure angle of flare determine the area A of the lower sleeping soil layer；According to the area of the lower sleeping soil layer
And the load P of the object yet to be built calculates stress value of the basis to the lower sleeping soil layer of the object yet to be built.
It, can be further after determining the foundation area information of object yet to be built of middle weathering Black Warrior layer and base pressure angle of flare
Determine that base pressure is diffused into the area (A) of rock stratum bottom (lower sleeping soil layer), so as to which middle decayed basalt bottom is obtained
Stress value (P/A).
The present embodiment calculates the stress of the lower sleeping soil layer according to the load P of the area A of lower sleeping soil layer and object yet to be built
Value, whether the bearing capacity of sleeping soil layer meets the requirements under further being judged by the stress value of soil layer sleeping under calculating, i.e., can
Carry the object yet to be built.
In one embodiment, the acquisition judges whether the stress value and the deformation of sedimentation are satisfied by sets requirement
The step of, including：The bearing capacity measured value of the lower sleeping soil layer is obtained, the stress value and the bearing capacity measured value are carried out
It compares, judges whether the stress value meets sets requirement；Preset deformation of sedimentation threshold value is obtained, by the deformation of sedimentation
It is compared with the preset deformation of sedimentation threshold value, judges whether the deformation of sedimentation meets sets requirement.
Optionally, by the numerical value of stress value P/A with the basaltic lower sleeping sand of middle weathering, clay bearing capacity Fak compared with,
Whether the bearing capacity Fak of sleeping soil layer meets the requirements, and then may determine that whether the stress value meets sets requirement under understanding.
By it is each basis under sleeping soil layer deformation of sedimentation S be obtained after, by its with《Thermal power plant civil engineering structure designing technique rule
Journey》(DL5022-2012) the column footing sedimentation and deformation limit value of requirement is compared, then it can be seen that whether foundation's bottom area meets
The settlement request of specification, and then may determine that whether the deformation of sedimentation meets sets requirement.Summary judging result, such as
Fruit both of the aforesaid parameter is satisfied by requiring, then ground checking computations pass through.
Optionally, it the step of can also including calculating stress value of the object yet to be built to rock stratum, calculates to the stress value of rock stratum
Method is using conventional method.If the stress value of rock stratum is unsatisfactory for requiring, the checking computations of the ground can be obstructed mistake,
With being considered that checking computations pass through with reference to other situations.
Whether the present embodiment can carry the basis of object yet to be built to the lower sleeping soil layer by the lower sleeping soil layer for judging rock stratum respectively
Stress value and the deformation of sedimentation of lower sleeping soil layer whether meet the requirements, obtain the judging result to ground, can further really
Whether the fixed ground, which checks, passes through.
In one embodiment, the deformation of sedimentation of the ground is obtained by equation below：
Wherein,
In above-mentioned formula, s is deformation of sedimentation；α is settlement experience coefficient；P0For net foundation pressure；It is wide based on b
Degree；The equivalent value of native deformation modulus in depth bounds is calculated for deformation；N is the number of plies of soil；H calculates depth for deformation；hiFor
Substrate plays i-th layer of native thickness from top to bottom,hnThickness for horizon d；E0nDistorted pattern for horizon d
Amount；E0iThe deformation modulus native for i-th layer.
Wherein, h=(1~1.5) b can use for isolated foundation, rectangular foundation can use h=(1.5~2) b, and strip footing can
H=(2~3) b is taken, mat foundation can use h=(0.5~0.9) b；It is calculating in depth bounds there are during apoplexy basement rock, above formula
InAndIt can disregard.
The lower sleeping soil layer of ground is often multilayer, and the compressibility of the basaltic lower sleeping soil layer of middle weathering has difference
Property, the compression modulus of fine sand and clay is unequal.Therefore the present embodiment, can overall calculation by foundation deformation amount calculation formula
Go out total deformation of sedimentation S on each basis.
In one embodiment, the rock stratum is middle decayed basalt；The strength characteristic according to the rock stratum determines institute
The step of base pressure angle of flare for stating rock stratum, includes：According to the basaltic whole raft plate effect of middle weathering, the rock stratum is determined
Base pressure angle of flare be 40 °.
Optionally, the rock stratum micro- decayed basalt in can also being.
As shown in figure 4, Fig. 4 is middle decayed basalt interlayer ground effective stress scatter diagram.Since middle weathering is basaltic
Compression modulus is more much bigger than lower sleeping clay, the compression modulus of sand, it is contemplated that middle decayed basalt has certain whole raft plate
Effect, therefore the present embodiment reference《Code for design of building》Record in P243：" checking computations rock subjacent bed intensity
When, base pressure angle of flare can be by 30 °~40 ° considerations ".Determine that basaltic base stress angle of flare of weathering is 40 ° in this,
Determine can to analyze after this angle the lower sleeping soil layer of rock stratum as much as possible.Pass through the object load P yet to be built on isolated footing
Active force P ' indirectly-actings are on the lower sleeping soil layer of rock stratum.
The above method in order to better understand, the application example of a ground Method for Checking of the present invention detailed below.
The rock stratum of the present embodiment is by taking middle decayed basalt as an example, and object yet to be built is by taking boiler room as an example.
1) the load P of object yet to be built is obtained.
2) the basaltic whole raft plate effect of weathering determines that basaltic base pressure angle of flare of weathering is in this in
40°。
3) the foundation area information A ' of the middle basaltic object yet to be built of weathering is obtained, according to the object yet to be built of the rock stratum
Foundation area information A ' and the base pressure angle of flare determine the area A of the lower sleeping soil layer by geometrical relationship.
4) the area A of the load P of the object yet to be built divided by the lower sleeping soil layer are obtained into the basis of the object yet to be built to institute
State the stress value P/A of lower sleeping soil layer.
5) deformation of sedimentation of ground is calculated according to equation below：
Wherein,
In above-mentioned formula, s is deformation of sedimentation；α is settlement experience coefficient；P0For net foundation pressure；It is wide based on b
Degree；The equivalent value of native deformation modulus in depth bounds is calculated for deformation；N is the number of plies of soil；H calculates depth for deformation；hiFor
Substrate plays i-th layer of native thickness from top to bottom,hnThickness for horizon d；E0nDistorted pattern for horizon d
Amount；E0iThe deformation modulus native for i-th layer.
6) the bearing capacity F of the lower sleeping soil layer is measured by measuring instrumentak, by the stress value P/A and the bearing capacity
FakIt is compared, when stress value P/A is more than bearing capacity FakWhen, represent that the lower sleeping soil layer can carry the object yet to be built.
7) it searches《Thermal power plant civil engineering structure designing technique regulation》(DL5022-2012) the column footing sedimentation of requirement
Limit value is deformed, the deformation of sedimentation is compared with the column footing sedimentation and deformation limit value, when the deformation of sedimentation is less than
During with the column footing sedimentation and deformation limit value, represent that the deformation of sedimentation is met the requirements.
8) when stress value P/A and deformation of sedimentation are satisfied by requiring, then the corresponding ground checking computations of the object yet to be built pass through.
9) ground is checked as analysis tool by using large-scale geotechnical engineering special-purpose software Midas/GTS NX
Process is verified that analytic process is as follows：
Fig. 5 is the boiler foundation layout drawing on middle decayed basalt interlayer ground.As shown in figure 5, the embodiment of the present invention is adopted
Three-dimensional Holistic modeling, analysis are carried out to boiler foundation, middle gentle breeze basaltic layer and following sand, clay with three-dimensional finite element method
The settling amount and differential settlement on the basis.Check the stress of rock stratum and lower sleeping soil layer, judgement learns that stress value P/A is met the requirements.
In finite element analysis, soil layer constitutive model selects mole coulomb criterion, and the mechanical strength parameter of soil layer is according to rock
Soil test parameter in native engineering investigation report is chosen, and the soil parameters of use are as shown in table 1.
1 soil parameters of table and constitutive relation
In view of modeling work amount, calculation amount and the factors such as time are calculated, to the geological layering situation in log sheet
Suitably simplify, ignore secondary stratum and rise and fall, establish the three-dimensional fluctuating stratigraphic model of emulation, as shown in Figure 6.
The structural parameters of boiler foundation base for post and suspension column such as the following table 2, the obtained threedimensional model of final boiler foundation such as Fig. 7
It is shown.
2 foundation structure parameter of table and constitutive relation
| Structure title | Sectional dimension (m) | Material | Constitutive relation | Elasticity modulus (kN/m2) |
| Concrete base for post | It is a variety of | C40 concrete | Elasticity | 3.25×107 |
As shown in fig. 7, a total of 57 column positions, wherein the quasi- permanent load of each base for post is as shown in table 3 below：
The quasi- permanent load axle power of 3 base for post of table and shearing loading numerical tabular
From the result of Midas/GTS NX models it is found that under the action of accurate permanent combined load, each isolated footing is most
It is respectively 49.26mm and 31.1mm greatly with minimum sedimentation.Between base for post maximum settlement poor (deformation of sedimentation) be 18.16mm, column
Spacing is 46.5m, which is less than《Thermal power plant civil engineering structure designing technique regulation》For the ground of boiler foundation
Base permissible deformation value 0.002L=0.002*46.5m=93mm (wherein, L is intercolumniation).Therefore, the deformation of sedimentation of the ground
Meet code requirement, Fig. 8 is the solum settlement analysis result schematic diagram of finite element model, between the base for post that simplified method obtains most
Big differential settlement is 25mm, bigger than finite element result 18.16mm, but simplifies the ground that method and finite element method are calculated
Deformation of sedimentation is satisfied by code requirement.Therefore, what the ground Method for Checking of the embodiment of the present invention can be used as design is partial to
The computational methods of safety.
Ground Method for Checking through the embodiment of the present invention can fully consider the special circumstances of middle weathered sandwich ground,
Meet and build boiler room isolated footing under the premise of calculating requirement, avoid directly using raft foundation on entire ground, and then
Save construction cost.By taking a certain Boiler House basis in Leizhou as an example, common practices (the bar shaped base on civil high-rise buildings basis
Plinth) and the obtained isolated footing of ground Method for Checking through the embodiment of the present invention carry out cost comparison.It was found that pass through the present invention
Ground Method for Checking in embodiment checks ground, can save amount of concrete 3500m3, amount of reinforcement 28kg/m3
Calculated, 7,000,000 yuan of cost can be saved.
The embodiment of the present invention demonstrates the practicality of simplified design method by the analysis of foundation and soil three-dimensional finite element model
Property, it solves the simplification design problem of isolated footing in the case of no specification can be followed, solves basic engineering safety and economy
Problem.
It should be noted that for aforementioned each method embodiment, describe, it is all expressed as a series of for simplicity
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to
According to the present invention, certain steps may be used other sequences or be carried out at the same time.
Based on the thought identical with the ground Method for Checking in above-described embodiment, the present invention also provides grounds to check device,
The device can be used for performing above-mentioned ground Method for Checking.For convenience of description, the structure diagram of ground checking computations device embodiment
In, illustrate only with the relevant part of the embodiment of the present invention, it will be understood by those skilled in the art that schematic structure is not formed
Restriction to device can include either combining certain components or different component cloth than illustrating more or fewer components
It puts.
As described in Figure 9, ground checking computations device include information determination module 910, stress value determining module 920 and bearing capacity with
And deformation of sedimentation checking computations module 930.
Information determination module 910, for obtaining the intensity of the load of object yet to be built, foundation area information and rock stratum spy
Sign determines the base pressure angle of flare of the rock stratum according to the strength characteristic of the rock stratum.
Stress value determining module 920, for load, foundation area information and the substrate pressure according to the object yet to be built
Power angle of flare determines stress value of the basis to the lower sleeping soil layer of the object yet to be built.
And bearing capacity and deformation of sedimentation check module 930, it is corresponding for obtaining the ground for calculating and determining
Deformation of sedimentation, judges whether the stress value and the deformation of sedimentation are satisfied by sets requirement, is determined according to judging result
The checking computation results of the ground.
In one embodiment, the stress value determining module 920 includes：Soil layer area calculation module, for according to
The foundation area information of object yet to be built and the base pressure angle of flare determine the area of the lower sleeping soil layer；Soil layer stress value calculates
Module calculates the basis of the object yet to be built to described for the load of the area according to the lower sleeping soil layer and the object yet to be built
The stress value of sleeping soil layer down.
In one embodiment, the bearing capacity and deformation of sedimentation checking computations module 930 include：Stress value checks submodule
For obtaining the bearing capacity measured value of the lower sleeping soil layer, the stress value is compared with the bearing capacity measured value for block,
Judge whether the stress value meets sets requirement；Deflection checks submodule, for obtaining preset deformation of sedimentation threshold value,
The deformation of sedimentation with the preset deformation of sedimentation threshold value is compared, judges whether the deformation of sedimentation meets
Sets requirement.
In one embodiment, the Deformation calculation module 930 is used to obtain the sedimentation and deformation of ground by equation below
Amount：
Wherein,
In above-mentioned formula, s is deformation of sedimentation；α is settlement experience coefficient；P0For net foundation pressure；It is wide based on b
Degree；The equivalent value of native deformation modulus in depth bounds is calculated for deformation；N is the number of plies of soil；H calculates depth for deformation；hiFor
Substrate plays i-th layer of native thickness from top to bottom,hnThickness for horizon d；E0nDistorted pattern for horizon d
Amount；E0iThe deformation modulus native for i-th layer.
In one embodiment, the rock stratum is middle decayed basalt；The feature according to rock stratum determines that base pressure expands
The step of dissipating angle includes：Described information determining module 910 is used for the basaltic whole raft plate effect of the weathering in, determines described
The base pressure angle of flare of rock stratum is 40 °.
It should be noted that the ground checking computations device and the ground Method for Checking of the present invention of the present invention correspond, upper
It states the technical characteristic of the embodiment elaboration of ground Method for Checking and advantage is suitable for the embodiment of ground checking computations device
In, particular content can be found in the narration in the method for the present invention embodiment, and details are not described herein again, hereby give notice that.
In addition, in the embodiment of the ground checking computations device of above-mentioned example, the logical partitioning of each program module is only citing
Illustrate, can be as needed in practical application, such as examined for the facility of the realization of the configuration requirement or software of corresponding hardware
Consider, above-mentioned function distribution is completed by different program modules, i.e., be divided into the internal structure of ground checking computations device not
Same program module, to complete all or part of function described above.
It will appreciated by the skilled person that realizing all or part of flow in above-described embodiment method, being can
It is completed with instructing relevant hardware by computer program, the program can be stored in a computer-readable storage and be situated between
In matter, it is independent product sale or uses.The more specific example (non-exhaustive list) of computer-readable medium includes
Below：Electrical connection section (electronic device) with one or more wiring, portable computer diskette box (magnetic device), arbitrary access
Memory (RAM), read-only memory (ROM), erasable edit read-only storage (EPROM or flash memory), optical fiber dress
It puts and portable optic disk read-only storage (CDROM).It can be printed on it in addition, computer-readable medium can even is that
The paper of described program or other suitable media, because can be for example by carrying out optical scanner to paper or other media, then
It is handled electronically to obtain described program into edlin, interpretation or when necessary with other suitable methods, then by it
Storage is in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If for example, with hardware come realize in another embodiment, can be under well known in the art
Any one of row technology or their combination are realized：With for the logic gates to data-signal realization logic function
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
The term " comprising " and " having " of the embodiment of the present invention and their any deformations, it is intended that cover non-exclusive
Comprising.Such as contain series of steps or the process, method, system, product or equipment of (module) unit are not limited to
The step of listing or unit, but optionally further include the step of not listing or unit or optionally further include for these
The intrinsic other steps of process, method, product or equipment or unit.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, it is impossible to be interpreted as to the scope of the claims of the present invention
Limitation.It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention
It should be determined by the appended claims.
Claims (10)
1. a kind of ground Method for Checking, the ground includes rock stratum and lower sleeping soil layer, which is characterized in that the method includes with
Lower step：
Load, foundation area information and the strength characteristic of the rock stratum of object yet to be built are obtained, it is special according to the intensity of the rock stratum
Sign determines the base pressure angle of flare of the rock stratum；
The base of the object yet to be built is determined according to the load of the object yet to be built, foundation area information and the base pressure angle of flare
Plinth is to the stress value of the lower sleeping soil layer；
It obtains and calculates the determining corresponding deformation of sedimentation of the ground, judge whether are the stress value and the deformation of sedimentation
Sets requirement is satisfied by, the checking computation results of the ground are determined according to judging result.
2. ground Method for Checking according to claim 1, which is characterized in that load, the base according to the object yet to be built
Plinth area information and the base pressure angle of flare determine the basic stress value to the lower sleeping soil layer of the object yet to be built
Step, including：
The area of the lower sleeping soil layer is determined according to the foundation area information of the object yet to be built and the base pressure angle of flare；
The basis of the object yet to be built is calculated to described lower sleeping according to the load of the area of the lower sleeping soil layer and the object yet to be built
The stress value of soil layer.
3. ground Method for Checking according to claim 1, which is characterized in that the judgement stress value and the sedimentation
The step of whether deflection is satisfied by sets requirement, including：
The bearing capacity measured value of the lower sleeping soil layer is obtained, the stress value with the bearing capacity measured value is compared, is sentenced
Whether the stress value that breaks meets sets requirement；
Preset deformation of sedimentation threshold value is obtained, the deformation of sedimentation and the preset deformation of sedimentation threshold value are compared
It is right, judge whether the deformation of sedimentation meets sets requirement.
4. ground Method for Checking according to claim 1, which is characterized in that the deformation of sedimentation of the ground passes through as follows
Formula obtains：
Wherein,
In above-mentioned formula, s is deformation of sedimentation；α is settlement experience coefficient；P0For net foundation pressure；B is basic width；
The equivalent value of native deformation modulus in depth bounds is calculated for deformation；N is the number of plies of soil；H calculates depth for deformation；hiIt is risen for substrate
I-th layer of native thickness from top to bottom,hnThickness for horizon d；E0nDeformation modulus for horizon d；E0iFor
I-th layer of native deformation modulus.
5. ground Method for Checking according to claim 1, which is characterized in that the rock stratum is middle decayed basalt；
The strength characteristic according to the rock stratum determines that the step of base pressure angle of flare of the rock stratum includes：
According to the basaltic whole raft plate effect of middle weathering, the base pressure angle of flare for determining the rock stratum is 40 °.
6. a kind of ground checks device, the ground includes rock stratum and lower sleeping soil layer, which is characterized in that it is characterized in that, institute
Ground checking computations device is stated to include：
Information determination module, for obtaining the strength characteristic of the load of object yet to be built, foundation area information and the rock stratum, according to
The strength characteristic of the rock stratum determines the base pressure angle of flare of the rock stratum；
Stress value determining module, for load, foundation area information and the base pressure diffusion according to the object yet to be built
Angle determines stress value of the basis to the lower sleeping soil layer of the object yet to be built；
And bearing capacity and deformation of sedimentation checking computations module, the corresponding sedimentation of the ground determined for acquisition calculating become
Shape amount, judges whether the stress value and the deformation of sedimentation are satisfied by sets requirement, is determined according to judging result described
The checking computation results of base.
7. ground according to claim 6 checks device, which is characterized in that the stress value determining module includes：
Soil layer area calculation module determines for the foundation area information according to the object yet to be built and the base pressure angle of flare
The area of the lower sleeping soil layer；
Soil layer stress value computing module, for described in the calculating of the load of the area according to the lower sleeping soil layer and the object yet to be built
The basis of object yet to be built is to the stress value of the lower sleeping soil layer.
8. ground according to claim 6 checks device, which is characterized in that the bearing capacity and deformation of sedimentation checking computations
Module includes：
Stress value checks submodule, and for obtaining the bearing capacity measured value of the lower sleeping soil layer, the stress value is held with described
It carries power measured value to be compared, judges whether the stress value meets sets requirement；
Deflection checks submodule, and for obtaining preset deformation of sedimentation threshold value, the deformation of sedimentation is preset with described
Deformation of sedimentation threshold value be compared, judge whether the deformation of sedimentation meets sets requirement.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The ground Method for Checking as described in claim 1 to 5 any one is realized during row.
10. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor is realized when performing described program as described in claim 1 to 5 any one
Ground Method for Checking.
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| CN201711447764.5A CN108166540B (en) | 2017-12-27 | 2017-12-27 | Foundation checking method and device |
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| CN201711447764.5A CN108166540B (en) | 2017-12-27 | 2017-12-27 | Foundation checking method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112528490A (en) * | 2020-12-08 | 2021-03-19 | 中国有色金属工业昆明勘察设计研究院有限公司 | Method for calculating limit load of independent foundation in karst foundation |
| CN114186383A (en) * | 2021-10-29 | 2022-03-15 | 广东省建科建筑设计院有限公司 | Analysis method for calculating limit bearing capacity of shallow foundation |
-
2017
- 2017-12-27 CN CN201711447764.5A patent/CN108166540B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国住房和城乡建设部: "《建筑地基基础设计规范》", 26 July 2011, 中华人民共和国住房和城乡建设部 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112528490A (en) * | 2020-12-08 | 2021-03-19 | 中国有色金属工业昆明勘察设计研究院有限公司 | Method for calculating limit load of independent foundation in karst foundation |
| CN112528490B (en) * | 2020-12-08 | 2023-02-28 | 中国有色金属工业昆明勘察设计研究院有限公司 | Method for calculating limit load of independent foundation in karst foundation |
| CN114186383A (en) * | 2021-10-29 | 2022-03-15 | 广东省建科建筑设计院有限公司 | Analysis method for calculating limit bearing capacity of shallow foundation |
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| CN108166540B (en) | 2020-02-18 |
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