CN111576506A - Novel method for detecting bearing capacity of pile foundation - Google Patents
Novel method for detecting bearing capacity of pile foundation Download PDFInfo
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- CN111576506A CN111576506A CN202010476363.8A CN202010476363A CN111576506A CN 111576506 A CN111576506 A CN 111576506A CN 202010476363 A CN202010476363 A CN 202010476363A CN 111576506 A CN111576506 A CN 111576506A
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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 invention relates to the technical field of pile foundation detection, in particular to a novel method for detecting the bearing capacity of a pile foundation, which comprises the following steps: core drilling detection, wherein the integrity of the pile foundation is analyzed; the second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system; the third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation; the method has the advantages of being capable of carrying out double detection on static load and dynamic load of the pile foundation, improving authenticity of data, carrying out pre-sampling analysis on the pile foundation and increasing data comparison correlation, and solves the problems that most of existing detection methods are static load detection, static load detection has single data, load data is static load of the pile foundation, authenticity is lacked, and sampling analysis is not carried out on the pile foundation before load detection of the pile foundation, and data comparison is lacked.
Description
Technical Field
The invention relates to the technical field of pile foundation detection, in particular to a novel method for detecting the bearing capacity of a pile foundation.
Background
The pile foundation is a deep foundation consisting of piles and pile bearing platforms (bearing platforms for short) connected with the pile tops or a single pile foundation connected with the pile foundation through columns. If the pile body is completely buried in the soil and the bottom surface of the bearing platform is contacted with the soil body, the pile body is called a low bearing platform pile foundation; when the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap pile foundation. The building pile foundation is usually a low-cap pile foundation. In high-rise buildings, pile foundations are widely applied.
The pile foundation is pouring the back, need detect its bearing capacity, the present detection method is mostly static load detection, its data of static load detection is comparatively single, and its load data is the static bearing of pile foundation, lack the authenticity, and before bearing the detection to the pile foundation, do not carry out the sample analysis to the pile foundation, lack the contrast of data, for this reason, we have provided one kind and can carry out the dual detection of static load and dynamic load to the pile foundation, promote the authenticity of data, and carry out the sample analysis in advance to the pile foundation, increase the novel pile foundation bearing capacity's of data contrast correlation detection method, solve the problem that above-mentioned content exists.
Disclosure of Invention
The invention aims to provide a novel method for detecting the bearing capacity of a pile foundation, which has the advantages of performing double detection on static load and dynamic load of the pile foundation, improving the authenticity of data, performing pre-sample analysis on the pile foundation and increasing the data comparison correlation, and solves the problems that the conventional detection method mostly performs static load detection, the data of the static load detection is single, the load data of the static load detection is static load bearing of the pile foundation and lacks authenticity, and the pile foundation is not sampled and analyzed before the load detection of the pile foundation and lacks data comparison.
In order to achieve the purpose, the invention provides the following technical scheme: a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed;
the second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system;
the third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation;
the fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
Preferably, in the first step, with SCZ-1 type hydrodrill, adopt diamond single action double-barrelled to bore core sample operation, understand directly perceivedly the integrality of pile foundation, and can understand the condition on pile foundation bottom sediment thickness and pile tip holding power layer.
Preferably, in the first step, piles with the pile diameter of less than 1.2m can be 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
Preferably, in the second step, an embedded pipe fitting can be further installed at the top of the pile foundation, and the measuring system and the measuring and detecting piece are installed.
Preferably, in the third step, the rigidity of the pile foundation is detected by using the force transmission spring, the radius and the length of the pile foundation are recorded, and the rigidity is detected by using the force transmission spring
And (6) performing calculation.
Preferably, in the fourth step, the data of the soil are analyzed and detected, and compared with a blank control group, the correlation value of the water-swelling coefficient of the soil is analyzed.
Preferably, in the fifth step, the pile top settlement of the pile foundation under different load effects is actually measured to obtain a Q-s curve, an s-lgt auxiliary curve and other auxiliary curves of a static load test, and then parameters such as a characteristic value of the vertical compression bearing capacity of the single pile are calculated according to the curves.
Preferably, in the sixth step, the impact force of the heavy hammer and the weight of the static load are combined to reach more than 10% of the weight of the pile body or more than 1% of the vertical bearing capacity of the pile body, and the heavy hammer strikes the pile foundation by the free falling body with the weight of the static load.
Preferably, in the seventh step, the relevant power coefficient is obtained, and a specified program is applied to perform analysis and calculation to obtain the integrity parameter of the pile body and the vertical bearing capacity of the single pile.
Compared with the prior art, the invention has the following beneficial effects:
the method has the advantages of being capable of carrying out double detection on static load and dynamic load of the pile foundation, improving authenticity of data, carrying out pre-sampling analysis on the pile foundation and increasing data comparison correlation, and solves the problems that most of existing detection methods are static load detection, static load detection has single data, loading data is static load of the pile foundation, authenticity is lacked, and sampling analysis is not carried out on the pile foundation before load detection of the pile foundation, and data comparison is lacked.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed;
the second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system;
the third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation;
the fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
The first embodiment is as follows:
a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed; the SCZ-1 type hydraulic drilling machine is used for drilling core sampling operation by adopting a diamond single-action double-pipe drill, the integrity of the pile foundation is intuitively known, the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known, and the pile with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
The second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system;
the third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation;
the fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
Example two:
a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed; the SCZ-1 type hydraulic drilling machine is used for drilling core sampling operation by adopting a diamond single-action double-pipe drill, the integrity of the pile foundation is intuitively known, the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known, and the pile with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
The second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system; and the top of the pile foundation can be provided with an embedded pipe fitting for installing a measuring system and a measuring and detecting piece.
The third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation;
the fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
Example three:
a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed; the SCZ-1 type hydraulic drilling machine is used for drilling core sampling operation by adopting a diamond single-action double-pipe drill, the integrity of the pile foundation is intuitively known, the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known, and the pile with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
The second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system; and the top of the pile foundation can be provided with an embedded pipe fitting for installing a measuring system and a measuring and detecting piece.
The third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation; detecting the rigidity of pile foundation by force-transmitting spring, recording the radius and length of pile foundation, and using
And (6) performing calculation.
The fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
Example four:
a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed; the SCZ-1 type hydraulic drilling machine is used for drilling core sampling operation by adopting a diamond single-action double-pipe drill, the integrity of the pile foundation is intuitively known, the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known, and the pile with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
The second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system; and the top of the pile foundation can be provided with an embedded pipe fitting for installing a measuring system and a measuring and detecting piece.
The third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation; detecting the rigidity of pile foundation by force-transmitting spring, recording the radius and length of pile foundation, and using
And (6) performing calculation.
The fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil; and analyzing and detecting the data of the soil, comparing the data with a blank control group, and analyzing the correlation value of the water-swelling coefficient of the data.
The fifth step: static load construction, adopting load weight to carry out load test on the pile foundation; and (3) obtaining a Q-s curve, an s-lgt auxiliary curve and other auxiliary curves of a static load test by actually measuring the pile top settlement of the pile foundation under different load effects, and then calculating parameters such as a characteristic value of the vertical compression bearing capacity of the single pile according to the curves.
And a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
Example five:
a method for detecting the bearing capacity of a novel pile foundation comprises the following steps,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed; the SCZ-1 type hydraulic drilling machine is used for drilling core sampling operation by adopting a diamond single-action double-pipe drill, the integrity of the pile foundation is intuitively known, the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known, and the pile with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
The second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system; and the top of the pile foundation can be provided with an embedded pipe fitting for installing a measuring system and a measuring and detecting piece.
The third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation; the rigidity of the pile foundation is detected by utilizing the force transmission spring, and the radius of the pile foundation and the pile length are advancedLine recording and using
And (6) performing calculation.
The fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil; and analyzing and detecting the data of the soil, comparing the data with a blank control group, and analyzing the correlation value of the water-swelling coefficient of the data.
The fifth step: static load construction, adopting load weight to carry out load test on the pile foundation; and (3) obtaining a Q-s curve, an s-lgt auxiliary curve and other auxiliary curves of a static load test by actually measuring the pile top settlement of the pile foundation under different load effects, and then calculating parameters such as a characteristic value of the vertical compression bearing capacity of the single pile according to the curves.
And a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer; the impact force of the heavy hammer and the weight of the static load are integrated to reach more than 10% of the weight of the pile foundation or more than 1% of the vertical bearing capacity of the pile foundation, and the heavy hammer strikes the pile foundation by the weight of the static load in a free-falling mode.
The seventh step: drawing a curve, and comparing and analyzing data detected by static load construction and data obtained by dynamic load construction; and obtaining related power coefficients, and applying a specified program to analyze and calculate to obtain pile body integrity parameters and the vertical bearing capacity of the single pile.
The process is as follows
Carry out drilling detection to the pile foundation, its drilling sample quantity is a plurality of, and carry out trompil installation measurement system and detection piece at the top of pile foundation, carry out the analysis to the composition of the peripheral soil of pile foundation ditch afterwards, confirm its water-swelling coefficient, later carry out static load construction at the top of pile foundation and detect, and carry out the record respectively to its different load weight, carry out the dynamic load construction in static load top afterwards, carry out the weight hammering to it, record dynamic load's data.
The method has the advantages of being capable of carrying out double detection on static load and dynamic load of the pile foundation, improving authenticity of data, carrying out pre-sampling analysis on the pile foundation and increasing data comparison correlation, and solves the problems that most of existing detection methods are static load detection, static load detection has single data, loading data is static load of the pile foundation, authenticity is lacked, and sampling analysis is not carried out on the pile foundation before load detection of the pile foundation, and data comparison is lacked.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A novel method for detecting bearing capacity of a pile foundation is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the first step is as follows: core drilling detection, wherein the integrity of the pile foundation is analyzed;
the second step is that: drilling a hole in the pile foundation, drilling a hole in the top of the pile foundation, and installing a measuring system;
the third step: measuring the rigidity of the pile foundation, detecting the rigidity of the pile foundation and recording the depth soil thickness of the pile foundation;
the fourth step: analyzing soil components, namely sampling and analyzing soil, and calculating the water-swelling coefficient of the soil;
the fifth step: static load construction, adopting load weight to carry out load test on the pile foundation;
and a sixth step: constructing dynamic load, namely hammering the static load by a heavy hammer;
the seventh step: and drawing a curve, and comparing and analyzing the data detected by the static load construction and the data obtained by the dynamic load construction.
2. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: in the first step, the SCZ-1 type hydraulic drilling machine is used, diamond single-action double-pipe drilling is adopted to carry out core drilling sampling operation, the integrity of the pile foundation is intuitively known, and the sediment thickness at the bottom of the pile foundation and the condition of a pile end bearing layer can be known.
3. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: in the first step, piles with the pile diameter smaller than 1.2m can be provided with 1-2 holes; the pile diameter is 1.2-1.6m, and 2 holes are suitable; the pile with the diameter larger than 1.6m is preferably provided with 3 holes; the drilling positions are preferably uniformly and symmetrically arranged within a range of 0.15-0.25 from the center of the pile.
4. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: and in the second step, the top of the pile foundation can be provided with an embedded pipe fitting, and the measuring system and the measuring and detecting piece are installed.
5. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: in the third step, the rigidity of the pile foundation is detected by utilizing the force transmission spring, the radius and the length of the pile foundation are recorded, and the rigidity is detected by utilizing the force transmission spring
And (6) performing calculation.
6. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: and in the fourth step, analyzing and detecting the data of the soil, comparing the data with a blank control group, and analyzing the correlation value of the water-swelling coefficient of the data.
7. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: and in the fifth step, pile top settlement of the pile foundation under different load effects is actually measured to obtain a Q-s curve, an s-lgt auxiliary curve and other curves of the static load test, and parameters such as the characteristic value of the vertical compression bearing capacity of the single pile are calculated according to the curves.
8. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: and in the sixth step, the impact force of the heavy hammer and the weight of the static load are combined to reach the weight of the pile foundation more than 10% or the vertical bearing capacity of the pile foundation more than 1%, and the heavy hammer strikes the static load weight in a free falling mode to impact the pile foundation.
9. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: and in the seventh step, obtaining related power coefficients, and applying a specified program to analyze and calculate to obtain pile body integrity parameters and the vertical bearing capacity of the single pile.
10. The method for detecting the bearing capacity of the novel pile foundation according to claim 1, wherein the method comprises the following steps: the process is as follows
Carry out drilling detection to the pile foundation, its drilling sample quantity is a plurality of, and carry out trompil installation measurement system and test piece at the top of pile foundation, carry out the analysis to the composition of the peripheral soil of pile foundation ditch afterwards, confirm its water-swelling coefficient, later carry out static load construction at the top of pile foundation and detect, and carry out the difference record to its different load weight, carry out the dynamic load construction in static load top afterwards, carry out the weight hammering to it, record dynamic load's data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064687A (en) * | 2020-08-29 | 2020-12-11 | 东南大学 | Pile foundation comprehensive detection method based on initial stiffness method |
| CN114150661A (en) * | 2021-12-08 | 2022-03-08 | 郑州天宏工程检测有限公司 | Novel pile foundation and bearing capacity detection device and detection method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068903A1 (en) * | 2005-12-12 | 2007-06-21 | Terrain Geotechnical Consultants Limited | A pile test apparatus |
| DE102006006242A1 (en) * | 2006-02-09 | 2007-08-23 | GeTec -Ingenieurgesellschaft für Informations-und Planungstechnologie m.b.H. | Execution method for static load test at stakes or columns, involves displacing measuring point, opposite reference measuring point independent of counter bearings, connected with stake head or column head |
| CN104790439A (en) * | 2015-03-25 | 2015-07-22 | 福建省建筑工程质量检测中心有限公司 | Method for detecting and evaluating bearing capacity of socketed pile |
| CN104965987A (en) * | 2015-07-08 | 2015-10-07 | 中国路桥工程有限责任公司 | Method for measuring pile displacement and internal force caused by soil expansion of expansive soil foundation |
| CN109653259A (en) * | 2018-10-14 | 2019-04-19 | 中国科学院武汉岩土力学研究所 | Multi-functional load calcareous sand pile foundation model assay systems |
| CN110629812A (en) * | 2019-10-25 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Loading test device and method for vertical dynamic and static loads of single pile |
-
2020
- 2020-05-29 CN CN202010476363.8A patent/CN111576506A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007068903A1 (en) * | 2005-12-12 | 2007-06-21 | Terrain Geotechnical Consultants Limited | A pile test apparatus |
| DE102006006242A1 (en) * | 2006-02-09 | 2007-08-23 | GeTec -Ingenieurgesellschaft für Informations-und Planungstechnologie m.b.H. | Execution method for static load test at stakes or columns, involves displacing measuring point, opposite reference measuring point independent of counter bearings, connected with stake head or column head |
| CN104790439A (en) * | 2015-03-25 | 2015-07-22 | 福建省建筑工程质量检测中心有限公司 | Method for detecting and evaluating bearing capacity of socketed pile |
| CN104965987A (en) * | 2015-07-08 | 2015-10-07 | 中国路桥工程有限责任公司 | Method for measuring pile displacement and internal force caused by soil expansion of expansive soil foundation |
| CN109653259A (en) * | 2018-10-14 | 2019-04-19 | 中国科学院武汉岩土力学研究所 | Multi-functional load calcareous sand pile foundation model assay systems |
| CN110629812A (en) * | 2019-10-25 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Loading test device and method for vertical dynamic and static loads of single pile |
Non-Patent Citations (3)
| Title |
|---|
| 于海峰等人: "《2016 全国注册岩土工程师专业考试培训教材》", 31 March 2016 * |
| 曾章海等人: "《地基基础及基坑工程检测手册》", 31 January 2018 * |
| 胡泊等人: "《建筑工程质量事故分析与处理》", 31 May 2018 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064687A (en) * | 2020-08-29 | 2020-12-11 | 东南大学 | Pile foundation comprehensive detection method based on initial stiffness method |
| CN112064687B (en) * | 2020-08-29 | 2021-07-13 | 东南大学 | Pile foundation comprehensive detection method based on initial stiffness method |
| CN114150661A (en) * | 2021-12-08 | 2022-03-08 | 郑州天宏工程检测有限公司 | Novel pile foundation and bearing capacity detection device and detection method thereof |
| CN114150661B (en) * | 2021-12-08 | 2023-07-25 | 郑州天宏工程检测有限公司 | Pile foundation, bearing capacity detection device and detection method thereof |
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