CN106906815B - Foundation bearing capacity and side friction measuring device and its application method - Google Patents
Foundation bearing capacity and side friction measuring device and its application method Download PDFInfo
- Publication number
- CN106906815B CN106906815B CN201710135854.4A CN201710135854A CN106906815B CN 106906815 B CN106906815 B CN 106906815B CN 201710135854 A CN201710135854 A CN 201710135854A CN 106906815 B CN106906815 B CN 106906815B
- Authority
- CN
- China
- Prior art keywords
- shell
- side friction
- bearing capacity
- fixedly connected
- measuring device
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Include: shell the invention discloses a kind of foundation bearing capacity and side friction measuring device and its application method, measuring device, be the cylindrical of inner hollow, the bottom of the bottom-open of shell, the side wall of shell has the conical surface；Bearing plate, is truncated cone-shaped, and the bottom of shell is arranged in bearing plate, the diameter of the bottom of bearing plate is equal to the outer diameter of shell, bearing plate and shell are coaxially disposed, and the side wall of bearing plate is not contacted with the conical surface, and the height at the top of bearing plate is higher than the height of the bottom of the conical surface；Transmission rod, bottom are fixedly connected with the center at the top of bearing plate；Pressure detecting instrument is arranged between the top of shell and transmission rod, and is fixedly connected respectively with the top of shell and transmission rod；Tension gauge is installed in the top of shell, and is located at the top of shell；Force-transmitting pole is arranged vertically at the top of tension gauge.The present invention can obtain coincide with practical ground the situation preferable ultimate bearing capacity of foundation soil of property and side friction value.
Description
Technical field
The present invention relates to foundation soil properties to determine field.It is more particularly related to a kind of foundation bearing capacity and
Side friction measuring device and its application method.
Background technique
China region is wide, and engineering geological condition is more complicated, in Geotechnical Engineering standard, foundation bearing capacity and side
The determination of frictional resistance is the problem that academic opinion disagreement is bigger in the important content and soil mechanics of Foundation Design.Current one
As provide to determine foundation bearing capacity and side friction value according to specification, but rubbed using foundation bearing capacity determined by this method and side
Resistance Value is often relatively conservative, cannot give full play to ground performance to a certain extent, and structure design is relatively conservative, causes wave indirectly
Take.And foundation bearing capacity limiting value is known for some requirement of engineering, and data is surveyed on ground or specification generally provides foundation bearing
The characteristic value of power, the limiting value multiplied by empirical coefficient as foundation bearing capacity, the limit that such method obtains are held on this basis
Force value is carried often to have greater difference with practically base stage limit bearing capacity value.In terms of side friction determination, specification provides value often
It relatively guards, and side friction value size between given structure and the soil body, also seldom considers structural material to side friction
It is worth influencing.Therefore, accurate foundation bearing capacity and side friction value how to be obtained either to structure design or work
Journey construction all has larger benefit.
Summary of the invention
The object of the present invention is to provide a kind of foundation bearing capacity and side friction measuring devices and its application method, to obtain
With the identical preferable ultimate bearing capacity of foundation soil of property of practical ground situation and side friction value.
In order to realize these purposes and other advantages according to the present invention, a kind of foundation bearing capacity and side friction are provided
Measuring device, comprising:
Shell, is the cylindrical of inner hollow, and is arranged along the vertical direction, and the bottom-open of the shell is described
The bottom of the side wall of shell has from its inner sidewall towards its lateral wall inclined conical surface gradually downward；
Bearing plate is the up-small and down-big truncated cone-shaped of diameter, and the bottom of the shell is arranged in the bearing plate, described to hold
The diameter of the bottom of pressing plate is equal to the outer diameter of the shell, and the bearing plate and the shell are coaxially disposed, the bearing plate
Side wall is not contacted with the conical surface, and the height at the top of the bearing plate is higher than the height of the bottom of the conical surface；
Transmission rod is arranged along the vertical direction, and the center at the top of the bottom of the transmission rod and the bearing plate is fixed
Connection；
Pressure detecting instrument is arranged between the top of the shell and the transmission rod, and respectively with the shell
Top is fixedly connected with the transmission rod；
Tension gauge is installed in the top of the shell, and is located at the top of the shell；
Force-transmitting pole is arranged vertically at the top of the tension gauge.
Preferably, in the foundation bearing capacity and side friction measuring device, further includes:
Connecting rod is arranged vertically in the shell, the top at the top of the connecting rod and the shell
Center be fixedly connected, the bottom of the connecting rod is fixedly connected with the pressure detecting instrument, and the pressure detecting instrument passes through institute
It states and is fixedly connected at the top of connecting rod and the shell；
Support rod is arranged along the vertical direction, and the center at the top of the bottom of the support rod and the shell is fixed to be connected
It connects, the top of the support rod is fixedly connected with the tension gauge, and the tension gauge passes through the support rod and institute
It states and is fixedly connected at the top of shell.
Preferably, in the foundation bearing capacity and side friction measuring device, the transmission rod is by integrally formed
Upper and bottom section composition, the upper part and the lower part are cylindrical, and are coaxially set with the shell respectively
It sets, the diameter of the upper part is greater than the diameter of the lower part, and the pressure detecting instrument and the top of the upper part are fixed
Connection.
Preferably, in the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate one, be arranged between the pressure detecting instrument and the connecting rod, and respectively with the pressure
Detector is fixedly connected with the connecting rod, and the size of the cross section of the stress transfer plate one is greater than the transversal of the connecting rod
The size in face.
Preferably, in the foundation bearing capacity and side friction measuring device, the stress transfer plate one and described
Connecting rod is cylindrical, and is coaxially disposed respectively with the shell.
Preferably, in the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate two, be arranged between the support rod and the tension gauge, and respectively with the support
Bar is fixedly connected with the tension gauge, and the size of the cross section of the stress transfer plate two is greater than the transversal of the support rod
The size in face.
Preferably, in the foundation bearing capacity and side friction measuring device, the stress transfer plate two and described
Support rod is cylindrical, and is coaxially disposed respectively with the shell.
Preferably, in the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate three, be arranged between the tension gauge and the force-transmitting pole, and respectively with the stress
Detector is fixedly connected with the force-transmitting pole, and the size of the cross section of the stress transfer plate three is greater than the transversal of the force-transmitting pole
The size in face.
Preferably, in the foundation bearing capacity and side friction measuring device, the stress transfer plate three and described
Force-transmitting pole is cylindrical, and is coaxially disposed respectively with the shell.
A kind of application method of foundation bearing capacity and side friction measuring device, comprising the following steps:
Step 1: required detection bearing capacity and side friction surface of stratum are flattened, bearing plate is placed in the horizontal direction
In surface of stratum；
Step 2: power straight down is applied on force-transmitting pole using loading system straight down, make bearing plate pressure
It carries ground to move downward, records the detected value on pressure detecting instrument and tension gauge, it is vertical on force-transmitting pole with acting on
Downward power increases, and ground destroys, and the detected value on pressure detecting instrument is foundation bearing capacity limiting value, stress mornitoring at this time
The difference of the detected value on detected value and pressure detecting instrument on instrument is the Anti-pressure side friction acted on shell；
Step 3: after bearing plate buries certain depth, using loading system straight up, by masterpiece straight up
It uses on force-transmitting pole, records the detected value on tension gauge, the detected value on tension gauge is to act on shell
Pulling-resistant type side friction.
The present invention is include at least the following beneficial effects:
The ultimate bearing capacity of foundation soil and side friction value obtained through the invention can preferably coincide with practical ground situation,
And in terms of side friction determination, it is also considered that influence of the structural material to side friction value.
Accurate foundation bearing capacity and side friction value can be obtained through the invention, had to structure design and engineering construction
There is larger benefit.
The present invention can measure ultimate bearing capacity of foundation soil and side friction value simultaneously, and structure is simple, easy to use.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of foundation bearing capacity of the present invention and side friction measuring device.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
As shown in Figure 1, the present invention provides foundation bearing capacity and side friction measuring device, comprising:
Shell 100 (i.e. side friction power transmission arm), is the cylindrical of inner hollow, and is arranged along the vertical direction, institute
The bottom-open of shell 100 is stated, the bottom of the side wall of the shell 100 has from its inner sidewall towards its lateral wall gradually downward
The inclined conical surface 101；In actual use, when wanting to obtain the side friction between steel and the soil body, select steel construction as shell
100 materials；When wanting to obtain the side friction between concrete and the soil body, select armored concrete as 100 material of shell.
Bearing plate 110, is the up-small and down-big truncated cone-shaped of diameter, and the bottom of the shell 100 is arranged in the bearing plate 110
Portion, the diameter of the bottom of the bearing plate 110 are equal to the outer diameter of the shell 100, the bearing plate 110 and the shell 100
Coaxial arrangement, the side wall of the bearing plate 110 are not contacted with the conical surface 101, and the height at the top of the bearing plate 110 is high
Height in the bottom of the conical surface 101；Barrier seam 102 is formed in this way between the conical surface 101 and bearing plate 110, by bearing plate
110 separate with shell 100, so that the transmitting of power is not present between bearing plate 110 and shell 100, barrier seam 102 can use rigidity
The rubber elastomeric material filling small, compressibility is good, had not only prevented soil layer from entering in barrier seam 102, but also make bearing plate 110 vertical
Under upward counter-force effect, the power transmitted to shell 100 is smaller.
Transmission rod 120, is arranged along the vertical direction, the top of the bottom of the transmission rod 120 and the bearing plate 110
Center is fixedly connected；
Pressure detecting instrument 130 is arranged between the top and the transmission rod 120 of the shell 100, and respectively with institute
The top for stating shell 100 is fixedly connected with the transmission rod 120；Pressure detecting instrument 130 is that can detecte pressure in the prior art
Instrument, the power that transmission rod 120 is communicated up can only be detected.
Tension gauge 140 is installed in the top of the shell 100, and is located at the top of the shell 100；Stress
Detector 140 is the instrument that can detecte tensile stress and compression in the prior art, can detect to its downward pulling force and to
On pressure.
Force-transmitting pole 150 is arranged vertically at the top of the tension gauge 140.
The foundation bearing capacity and side friction measuring device provided using this programme measures foundation bearing capacity, Anti-pressure side is rubbed
The method of resistance and pulling-resistant type side friction, comprising the following steps:
Step 1: required detection bearing capacity and side friction surface of stratum are flattened, bearing plate 110 is put in the horizontal direction
It is placed in the surface of stratum；
Step 2: power straight down is applied on force-transmitting pole 150, pressure-bearing is made using loading system straight down
110 ballast ground of plate moves downward, and the soil body gives the counter-force of bearing plate 110 1 straight up, and counter-force straight up is by holding
Pressing plate 110 passes to transmission rod 120, and counter-force straight up is passed to pressure detecting instrument 130, pressure detecting by transmission rod 120
Counter-force size straight up suffered by the record of instrument 130 and detection bearing plate 110, then by pressure detecting instrument 130 will vertically to
On counter-force successively pass to top and the tension gauge 140 of shell 100, meanwhile, between the lateral wall and the soil body of shell 100
Anti-pressure side friction is generated, and Anti-pressure side friction is passed to by tension gauge 140, stress mornitoring by shell 100
Detected value on instrument 140 is the total load head acted on force-transmitting pole 150, with act on force-transmitting pole 150 straight down
Power increases, and ground destroys, and the detected value on pressure detecting instrument 130 is foundation bearing capacity limiting value, tension gauge at this time
The difference of detected value on 140 and the detected value on pressure detecting instrument 130 is the Anti-pressure side friction acted on shell 100；
Step 3: after measuring device buries certain depth, using loading system straight up, by power straight up
It is applied on force-transmitting pole 150, pulling-resistant type side friction is generated between the lateral wall and the soil body of shell 100, and will by shell 100
Pulling-resistant type side friction passes to tension gauge 140, and the detected value on tension gauge 140 is to act on shell 100
Pulling-resistant type side friction.
In the foundation bearing capacity and side friction measuring device, further includes:
Connecting rod 160 is arranged vertically in the shell 100, the top of the connecting rod 160 and the shell
The center at the top of body 100 is fixedly connected, and the bottom of the connecting rod 160 is fixedly connected with the pressure detecting instrument 130, described
Pressure detecting instrument 130 is fixedly connected by the connecting rod 160 with the top of the shell 100；
Support rod 170, is arranged along the vertical direction, in the top of the bottom of the support rod 170 and the shell 100
Centre is fixedly connected, and the top of the support rod 170 is fixedly connected with the tension gauge 140, and the tension gauge 140 is logical
The support rod 170 is crossed to be fixedly connected with the top of the shell 100.
The foundation bearing capacity and side friction measuring device provided using this programme measures foundation bearing capacity, Anti-pressure side is rubbed
The method of resistance and pulling-resistant type side friction, comprising the following steps:
Step 1: required detection bearing capacity and side friction surface of stratum are flattened, bearing plate 110 is put in the horizontal direction
It is placed in the surface of stratum；
Step 2: power straight down is applied on force-transmitting pole 150, pressure-bearing is made using loading system straight down
110 ballast ground of plate moves downward, and the soil body gives the counter-force of bearing plate 110 1 straight up, and counter-force straight up is by holding
Pressing plate 110 passes to transmission rod 120, and counter-force straight up is passed to pressure detecting instrument 130, pressure detecting by transmission rod 120
Counter-force size straight up suffered by the record of instrument 130 and detection bearing plate 110, then by pressure detecting instrument 130 will vertically to
On counter-force successively pass to connecting rod 160, the top of shell 100, support rod 170 and tension gauge 140, meanwhile, shell
Anti-pressure side friction is generated between 100 lateral wall and the soil body, and Anti-pressure side friction is transmitted to by branch by shell 100
Strut 170, then Anti-pressure side friction is passed to by tension gauge 140 by support rod 170, on tension gauge 140
Detected value is the total load head acted on force-transmitting pole 150, as the power straight down acted on force-transmitting pole 150 increases, ground
Base destroys, and the detected value on pressure detecting instrument 130 is foundation bearing capacity limiting value at this time, the inspection on tension gauge 140
The difference of measured value and the detected value on pressure detecting instrument 130 is the Anti-pressure side friction acted on shell 100；
Step 3: after measuring device buries certain depth, using loading system straight up, by power straight up
It is applied on force-transmitting pole 150, pulling-resistant type side friction is generated between the lateral wall and the soil body of shell 100, and will by shell 100
Pulling-resistant type side friction is transmitted to support rod 170, then pulling-resistant type side friction is passed to tension gauge by support rod 170
140, the detected value on tension gauge 140 is the pulling-resistant type side friction acted on shell 100.
Unit area frictional resistance size between the soil body and shell 100, can be according to corresponding side friction value divided by shell
Contact area obtains between 100 and soil layer.
Because gravity suffered by component each on device is smaller compared to the value of foundation bearing capacity and side friction, can be neglected,
Thus the above detection has ignored the gravity of each component of device.
In the foundation bearing capacity and side friction measuring device, the transmission rod 120 is by integrally formed upper part
It being grouped as with lower part, the upper part and the lower part are cylindrical, and are coaxially disposed respectively with the shell 100,
The diameter of the upper part is greater than the diameter of the lower part, and the pressure detecting instrument 130 and the top of the upper part are fixed
Connection.For installing pressure detecting instrument 130, upper part is relatively large in diameter, and such forced area is larger, can protect pressure for upper part
Detector 130, prevents it to be subject to crushing, and when upper part is thicker, can save the making material of lower part.
In the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate 1, be arranged between the pressure detecting instrument 130 and the connecting rod 160, and respectively with
The pressure detecting instrument 130 is fixedly connected with the connecting rod 160, and the size of the cross section of the stress transfer plate 1 is big
Size in the cross section of the connecting rod 160.I.e. pressure detecting instrument 130 is connected by stress transfer plate 1 and connecting rod 160
It connects, such forced area is larger, can protect pressure detecting instrument 130, it is prevented to be subject to crushing.
In the foundation bearing capacity and side friction measuring device, the stress transfer plate 1 and the connecting rod
160 be cylindrical, and is coaxially disposed respectively with the shell 100.
In the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate 2 190, be arranged between the support rod 170 and the tension gauge 140, and respectively with
The support rod 170 is fixedly connected with the tension gauge 140, and the size of the cross section of the stress transfer plate 2 190 is big
Size in the cross section of the support rod 170.I.e. tension gauge 140 is connected by stress transfer plate 2 190 and support rod 170
It connects, such forced area is larger, can protect tension gauge 140, it is prevented to be subject to crushing.
In the foundation bearing capacity and side friction measuring device, the stress transfer plate 2 190 and the support rod
170 be cylindrical, and is coaxially disposed respectively with the shell 100.
In the foundation bearing capacity and side friction measuring device, further includes:
Stress transfer plate 3 200, be arranged between the tension gauge 140 and the force-transmitting pole 150, and respectively with
The tension gauge 140 is fixedly connected with the force-transmitting pole 150, and the size of the cross section of the stress transfer plate 3 200 is big
Size in the cross section of the force-transmitting pole 150.I.e. tension gauge 140 is connected by stress transfer plate 3 200 and force-transmitting pole 150
It connects, such forced area is larger, can protect tension gauge 140, it is prevented to be subject to crushing.
In the foundation bearing capacity and side friction measuring device, the stress transfer plate 3 200 and the force-transmitting pole
150 be cylindrical, and is coaxially disposed respectively with the shell 100.
In the foundation bearing capacity and side friction measuring device, the cone angle of the bearing plate 110 and the conical surface 101
Cone angle it is equal, the height of the height at the top of the bearing plate 110 lower than the top of the conical surface 101.
In the foundation bearing capacity and side friction measuring device, the side wall of the bearing plate 110 and the conical surface 101
Between be filled with rubber.
A kind of application method of foundation bearing capacity and side friction measuring device, comprising the following steps:
Step 1: required detection bearing capacity and side friction surface of stratum are flattened, bearing plate is placed in the horizontal direction
In surface of stratum；
Step 2: power straight down is applied on force-transmitting pole using loading system straight down, make bearing plate pressure
It carries ground to move downward, records the detected value on pressure detecting instrument and tension gauge, it is vertical on force-transmitting pole with acting on
Downward power increases, and ground destroys, and the detected value on pressure detecting instrument is foundation bearing capacity limiting value, stress mornitoring at this time
The difference of the detected value on detected value and pressure detecting instrument on instrument is the Anti-pressure side friction acted on shell；
Step 3: after bearing plate buries certain depth, using loading system straight up, by masterpiece straight up
It uses on force-transmitting pole, records the detected value on tension gauge, the detected value on tension gauge is to act on shell
Pulling-resistant type side friction.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (8)
1. a kind of foundation bearing capacity and side friction measuring device characterized by comprising
Shell, is the cylindrical of inner hollow, and is arranged along the vertical direction, the bottom-open of the shell, the shell
The bottom of side wall have from its inner sidewall towards its lateral wall inclined conical surface gradually downward；
Bearing plate, is the up-small and down-big truncated cone-shaped of diameter, and the bottom of the shell, the bearing plate is arranged in the bearing plate
The diameter of bottom be equal to the outer diameter of the shell, the bearing plate and the shell are coaxially disposed, the side wall of the bearing plate
It is not contacted with the conical surface, and the height at the top of the bearing plate is higher than the height of the bottom of the conical surface；
Transmission rod is arranged along the vertical direction, and the bottom of the transmission rod is fixedly connected with the center at the top of the bearing plate；
Pressure detecting instrument is arranged between the top of the shell and the transmission rod, and the top with the shell respectively
It is fixedly connected with the transmission rod；
Tension gauge is installed in the top of the shell, and is located at the top of the shell；
Force-transmitting pole is arranged vertically at the top of the tension gauge；
Connecting rod is arranged vertically in the shell, in the top of the top of the connecting rod and the shell
Centre is fixedly connected, and the bottom of the connecting rod is fixedly connected with the pressure detecting instrument, and the pressure detecting instrument passes through the company
It is fixedly connected at the top of extension bar and the shell；
Support rod is arranged along the vertical direction, and the bottom of the support rod is fixedly connected with the center at the top of the shell, institute
The top for stating support rod is fixedly connected with the tension gauge, and the tension gauge passes through the support rod and the shell
Top be fixedly connected；
Stress transfer plate three, be arranged between the tension gauge and the force-transmitting pole, and respectively with the stress mornitoring
Instrument is fixedly connected with the force-transmitting pole, and the size of the cross section of the stress transfer plate three is greater than the cross section of the force-transmitting pole
Size.
2. foundation bearing capacity as described in claim 1 and side friction measuring device, which is characterized in that the transmission rod is by one
Body formed upper and bottom section composition, the upper part and the lower part are cylindrical, and respectively with the shell
Body coaxial arrangement, the diameter of the upper part are greater than the diameter of the lower part, the pressure detecting instrument and the upper part
Top is fixedly connected.
3. foundation bearing capacity as described in claim 1 and side friction measuring device, which is characterized in that further include:
Stress transfer plate one, be arranged between the pressure detecting instrument and the connecting rod, and respectively with the pressure detecting
Instrument is fixedly connected with the connecting rod, and the size of the cross section of the stress transfer plate one is greater than the cross section of the connecting rod
Size.
4. foundation bearing capacity as claimed in claim 3 and side friction measuring device, which is characterized in that the stress transfer plate
One and the connecting rod be cylindrical, and respectively with the shell be coaxially disposed.
5. foundation bearing capacity as described in claim 1 and side friction measuring device, which is characterized in that further include:
Stress transfer plate two, be arranged between the support rod and the tension gauge, and respectively with the support rod and
The tension gauge is fixedly connected, and the size of the cross section of the stress transfer plate two is greater than the cross section of the support rod
Size.
6. foundation bearing capacity as claimed in claim 5 and side friction measuring device, which is characterized in that the stress transfer plate
Two and the support rod be cylindrical, and respectively with the shell be coaxially disposed.
7. foundation bearing capacity as described in claim 1 and side friction measuring device, which is characterized in that the stress transfer plate
Three and the force-transmitting pole be cylindrical, and respectively with the shell be coaxially disposed.
8. the application method of a kind of foundation bearing capacity and side friction measuring device, which comprises the following steps:
Step 1: required detection bearing capacity and side friction surface of stratum are flattened, bearing plate is placed in ground in the horizontal direction
Layer surface；
Step 2: power straight down is applied on force-transmitting pole using loading system straight down, with making bearing plate ballast
Base moves downward, and records the detected value on pressure detecting instrument and tension gauge, with acting on force-transmitting pole straight down
Power increase, ground destroys, and the detected value on pressure detecting instrument is foundation bearing capacity limiting value at this time, on tension gauge
Detected value and pressure detecting instrument on the difference of detected value be the Anti-pressure side friction acted on shell；
Step 3:, using loading system straight up, power straight up is applied to after bearing plate buries certain depth
On force-transmitting pole, the detected value on tension gauge is recorded, the detected value on tension gauge is the resistance to plucking acted on shell
Type side friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135854.4A CN106906815B (en) | 2017-03-08 | 2017-03-08 | Foundation bearing capacity and side friction measuring device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135854.4A CN106906815B (en) | 2017-03-08 | 2017-03-08 | Foundation bearing capacity and side friction measuring device and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106906815A CN106906815A (en) | 2017-06-30 |
| CN106906815B true CN106906815B (en) | 2019-01-04 |
Family
ID=59186269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135854.4A Active CN106906815B (en) | 2017-03-08 | 2017-03-08 | Foundation bearing capacity and side friction measuring device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906815B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844823B (en) * | 2018-06-20 | 2023-05-26 | 中交第二航务工程局有限公司 | Device and method for measuring side friction resistance of soil layer at any depth |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614110A (en) * | 1984-06-08 | 1986-09-30 | Osterberg Jorj O | Device for testing the load-bearing capacity of concrete-filled earthen shafts |
| CN202175940U (en) * | 2011-07-08 | 2012-03-28 | 华侨大学 | Test device for bearing capacity of foundation soil |
| CN103088850A (en) * | 2013-01-17 | 2013-05-08 | 东南大学 | Cycle friction sleeve barrel device for evaluating periodic load pile side friction |
| CN103116189A (en) * | 2013-01-21 | 2013-05-22 | 浙江大学 | In-situ continuous penetrating probe used in non-aqueous phase liquids (NAPLs) polluted sandy soil field investigation |
| CN105133563A (en) * | 2015-08-25 | 2015-12-09 | 盐城工学院 | In-situ test method and device for rapidly determining shear strength of deep soil |
| CN206680981U (en) * | 2017-03-08 | 2017-11-28 | 中交第二航务工程局有限公司 | Foundation bearing capacity and side friction measurement apparatus |
-
2017
- 2017-03-08 CN CN201710135854.4A patent/CN106906815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614110A (en) * | 1984-06-08 | 1986-09-30 | Osterberg Jorj O | Device for testing the load-bearing capacity of concrete-filled earthen shafts |
| CN202175940U (en) * | 2011-07-08 | 2012-03-28 | 华侨大学 | Test device for bearing capacity of foundation soil |
| CN103088850A (en) * | 2013-01-17 | 2013-05-08 | 东南大学 | Cycle friction sleeve barrel device for evaluating periodic load pile side friction |
| CN103116189A (en) * | 2013-01-21 | 2013-05-22 | 浙江大学 | In-situ continuous penetrating probe used in non-aqueous phase liquids (NAPLs) polluted sandy soil field investigation |
| CN105133563A (en) * | 2015-08-25 | 2015-12-09 | 盐城工学院 | In-situ test method and device for rapidly determining shear strength of deep soil |
| CN206680981U (en) * | 2017-03-08 | 2017-11-28 | 中交第二航务工程局有限公司 | Foundation bearing capacity and side friction measurement apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106906815A (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104897479B (en) | A kind of composite support insulator mechanical property comprehensive detection system | |
| US7243526B2 (en) | Device and method for measuring the impact properties of a sport field surface | |
| CN103234830B (en) | Anchoring property experiment platform of anchor rod | |
| CN101614021B (en) | Moment test device | |
| CN103174122B (en) | Lateral stress pore pressure probe used for testing soil static lateral pressure coefficient | |
| CN205157556U (en) | Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument | |
| CN206680981U (en) | Foundation bearing capacity and side friction measurement apparatus | |
| CN205861459U (en) | A kind of rock sample transverse strain Multi point measuring apparatus | |
| CN106906815B (en) | Foundation bearing capacity and side friction measuring device and its application method | |
| CN107130651A (en) | The detection means and its detection method of anchor pole internal force exterior measuring | |
| CN106323751A (en) | Multiaxial pulling-pressing loading system for testing mechanical properties of defective materials with cracks | |
| CN207336227U (en) | A kind of uniaxial compression test device of measurable test specimen elastic limit | |
| CN105319123A (en) | Multifunctional model test pile | |
| CN107022994A (en) | A kind of miniature dynamic spy instrument and method of testing | |
| CN206902781U (en) | The detection means of anchor pole internal force exterior measuring | |
| CN104391088A (en) | Anchoring quality detection method and device for system anchor bar support roadway | |
| JP6069761B2 (en) | Penetration type lateral loading test method and penetration type lateral loading test apparatus | |
| CN108286250A (en) | A kind of deep layer dynamic sounding energy test device and its test method | |
| CN106840904A (en) | A kind of axle anisobaric of rock three is loaded and monitoring device | |
| CN205062789U (en) | Portable T type sounding appearance | |
| CN206095771U (en) | Many axial tension that contain crack defect component press loading device | |
| CN106284273B (en) | It is a kind of be used to evaluating sand liquefaction test resistance to plucking drag power feeler inspection device | |
| CN201885937U (en) | Dynamic sounding device | |
| CN104713793A (en) | Roadbed filling quality detector | |
| CN205808834U (en) | A kind of detection device for compression test of rock |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210906 Address after: 430048 No. 11 Jinyinhu Road, Dongxihu District, Wuhan City, Hubei Province Patentee after: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. Patentee after: CCCC WUHAN CHI HENG INTERNATIONAL ENGINEERING CONSULTING Co.,Ltd. Patentee after: CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: 430048 No. 11 Jinyinhu Road, Dongxihu District, Wuhan City, Hubei Province Patentee before: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. Patentee before: CCCC WUHAN CHI HENG INTERNATIONAL ENGINEERING CONSULTING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yongtao Inventor after: Feng Deding Inventor after: Jiang Daodong Inventor after: He Zuhao Inventor after: Luo Huiwu Inventor after: Yang Zhao Inventor after: Chen Peishuai Inventor after: Yu Cun Inventor after: Yang Qing Inventor after: Li Dejie Inventor after: Kong Qian Inventor after: Xu Chao Inventor after: Yan Xinyu Inventor before: Yang Zhao Inventor before: Jiang Daodong Inventor before: He Zuhao Inventor before: Luo Huiwu Inventor before: Chen Peishuai Inventor before: Yu Cun Inventor before: Yang Qing Inventor before: Li Dejie Inventor before: Kong Qian Inventor before: Xu Chao Inventor before: Yan Xinyu Inventor before: Feng Deding |
|
| CB03 | Change of inventor or designer information |