CN103850276A - Detecting and reloading technology for load box - Google Patents
Detecting and reloading technology for load box Download PDFInfo
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- CN103850276A CN103850276A CN201410104583.2A CN201410104583A CN103850276A CN 103850276 A CN103850276 A CN 103850276A CN 201410104583 A CN201410104583 A CN 201410104583A CN 103850276 A CN103850276 A CN 103850276A
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Abstract
The invention relates to a detecting and reloading technology for a load box, and belongs to the technical field of detection of self-reaction force balance load box foundation pile detection devices. The technology comprises the following technical steps of (A) a loading stage: performing loading stage by stage according to the tonnage of the load box 6, and applying the next stage of the load after each stage of the load is relatively stable until a maximum pre-detection load value is obtained; (B) an unloading stage: preserving the pressure for a period of time when the maximum value is obtained, then starting to release the pressure, measuring residual settlement once every 15 minutes when each stage of the load is released, measuring the residual settlement at the second time, and measuring the residual settlement again after 30 minutes so as to release the next stage of the load until the pressure is zero; (C) a reloading stage: after unloading is finished, determining the maximum reloading pressure, loading to reach a bearing capacity feature value of a pile foundation at a time, switching off a high-pressure ball valve 1 after the pressure is stabilized, dismounting a high-pressure oil pipe 2, and burying the high-pressure ball valve 1, a quickly replaceable joint 3 and a rubber pipe together into concrete during manufacturing of a sunk table to achieve a supporting effect through high-pressure hydraulic oil between a lower section pile 4 and an upper section pile 5 of the foundation pile, so that settlement caused by the construction in the later stage and the gravity of house buildings can be borne.
Description
Technical field
The present invention relates to a kind of load box and detect benefit year technique, belong to the detection technique field of self-rebound force balance loading case foundation pile checkout gear.
Background technology
In recent years since, along with pile bearing capacity detects the extensive use of self-rebound force balance loading case of use, a large amount of building sites are used self-rebound force balance loading case to detect the former preloading of replacement and detect, after using self-rebound force balance loading case to detect, employing releases the oil pressure of load box, causes the hydraulic oil of load box jack inside without pressure, cannot support the epimere stake of foundation pile, the problem that may cause construction in later period or house sinking etc. with this, has left potential safety hazard.
Summary of the invention
In order to overcome above-mentioned defect, the object of the present invention is to provide a kind of load box to detect to mend and carry technique, guarantee construction in later period and house quality, security problems, foundation pile, after having detected, must guarantee that foundation pile still holds more intact supporting capacity.
To achieve these goals, the present invention adopts following technical scheme:
A kind of load box detects to mend and carries technique, and this technique comprises following processing step:
A), load phase:
According to the tonnage of load box 6, load step by step, every grade of load reaches after relatively stable can add next stage load, until predetermined detection maxium load value;
B), unloading phase:
While being loaded into maximum value, pressurize a period of time starts release, after every grade of unloading, surveys and reads residual settlement one time every 15min, reads after twice, reads once every 30min again, can unload next stage load, until pressure is zero;
C), mend the stage of carrying:
After having unloaded, determine and mend the maximum pressure carrying, once be loaded on bearing capacity of pile foundation characteristic value, after pressure stability, close high-pressure ball valve 1, the high-pressure oil pipe 2 of dismantling, and high-pressure ball valve 1, hydraulic quick coupler 3 and sebific duct are buried to concrete together making when heavy stand, and making has high pressure liquid force feed to play a supportive role between foundation pile hypomere stake 4 and epimere stake 5, to bear construction in later period and the building construction sinking bringing of conducting oneself with dignity.
Self-rebound force balance loading case is used in bearing capacity of pile foundation testing process, the long oil pipe of hydraulic pressure oil pump station by the load box at the bottom of being embedded in or in stake is to load box fuel feeding, in loading procedure, load step by step, after every grade of load arrival is relatively stable, can load next stage load, until predetermined detection maxium load value, complete rear load shedding to zero to be detected, after again load box is mended and is downloaded to bearing capacity of pile foundation characteristic value, guarantee foundation pile always in stablizing artesian condition.
Do not mend in the situation of carrying, detected rear unloading, load box cylinder interior pressure is zero, and the stake of foundation pile hypomere and epimere stake have lost support and connection effect, cause house in work progress due to deadweight or the later stage build weight cause epimere stake entirety to move down, cause cushion cap, house to have the situations such as slight crack.This will bring adverse effect to engineering construction, and leave potential safety hazard.If after unloading completes, then carry out hydraulic pressure and mend and be downloaded to bearing capacity of pile foundation characteristic value, between the hypomere stake that makes foundation pile and epimere stake, have support and connection effect, by the adverse effect more than solution existing.
Beneficial effect of the present invention:
Integrated artistic of the present invention is simple, only need between hydraulic quick coupler and long oil pipe, install a high-pressure ball valve additional, after unloading completes, mends and is loaded onto bearing capacity of pile foundation characteristic value, and ball valve is closed, and extracts hydraulic quick coupler, and by hydraulic quick coupler, ball valve and sebific duct Transducers Embedded in Concrete.Process operation is simple, only need once mend and carry and can complete.
The present invention improves this situation to adopt that to mend the cost that the measure construction technology of carrying increases lower, and only need increase a ball valve at defeated pressure pipe end can realize.
Accompanying drawing explanation
Fig. 1 mends in the present invention to carry schematic diagram;
Fig. 2 is that mesohigh oil pipe of the present invention, hydraulic quick coupler, high-pressure ball valve are imbedded schematic diagram in heavy stand concrete.
In figure: 1-high-pressure ball valve, 2-high-pressure oil pipe, 3-hydraulic quick coupler, the stake of 4-hypomere, the stake of 5-epimere, 6-load box, 7-datum line beam, 8-data collecting system, 9-displacement transducer, 10-gauge stand, 11-loading system, 12-heavy stand.
The specific embodiment
Describe the present invention below in conjunction with accompanying drawing 1,2:
A kind of load box detects to mend and carries technique, and this technique comprises following processing step:
A), load phase:
According to the tonnage of load box 6, load step by step, every grade of load reaches after relatively stable can add next stage load, until predetermined detection maxium load value;
B), unloading phase:
While being loaded into maximum value, pressurize a period of time starts release, after every grade of unloading, surveys and reads residual settlement one time every 15min, reads after twice, reads once every 30min again, can unload next stage load, until pressure is zero;
C), mend the stage of carrying:
After having unloaded, determine and mend the maximum pressure carrying, once be loaded on bearing capacity of pile foundation characteristic value, after pressure stability, close high-pressure ball valve 1, the high-pressure oil pipe 2 of dismantling, and high-pressure ball valve 1, hydraulic quick coupler 3 and sebific duct are buried to concrete together making when heavy stand, and making has high pressure liquid force feed to play a supportive role between foundation pile hypomere stake 4 and epimere stake 5, to bear construction in later period and the building construction sinking bringing of conducting oneself with dignity.
Mending a year final pressure value must not be lower than bearing capacity of pile foundation characteristic value.
This technique is on former detection basis, to have increased by one to mend the measure of carrying, and after unloading, mends and is loaded onto bearing capacity of pile foundation characteristic value again, foundation pile has been detected between rear hypomere stake and epimere stake and can play support and connection effect, has reduced potential safety hazard, guarantees workmanship.
Claims (1)
1. load box detects to mend and carries a technique, it is characterized in that, this technique comprises following processing step:
A), load phase:
According to the tonnage of load box (6), load step by step, every grade of load reaches after relatively stable can add next stage load, until predetermined detection maxium load value;
B), unloading phase:
While being loaded into maximum value, pressurize a period of time starts release, after every grade of unloading, surveys and reads residual settlement one time every 15min, reads after twice, reads once every 30min again, can unload next stage load, until pressure is zero;
C), mend the stage of carrying:
After having unloaded, determine and mend the maximum pressure carrying, once be loaded on bearing capacity of pile foundation characteristic value, after pressure stability, close high-pressure ball valve (1), the high-pressure oil pipe (2) of dismantling, and high-pressure ball valve (1), hydraulic quick coupler (3) and sebific duct are buried to concrete together making when heavy stand, and making has high pressure liquid force feed to play a supportive role between foundation pile hypomere stake (4) and epimere stake (5), to bear construction in later period and the building construction sinking bringing of conducting oneself with dignity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104583.2A CN103850276B (en) | 2014-03-20 | 2014-03-20 | A kind of load box detects to mend and carries technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410104583.2A CN103850276B (en) | 2014-03-20 | 2014-03-20 | A kind of load box detects to mend and carries technique |
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| CN103850276A true CN103850276A (en) | 2014-06-11 |
| CN103850276B CN103850276B (en) | 2016-02-10 |
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| CN201410104583.2A Active CN103850276B (en) | 2014-03-20 | 2014-03-20 | A kind of load box detects to mend and carries technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064417A (en) * | 2015-07-30 | 2015-11-18 | 舟山市智海技术开发有限公司 | Load case detection and load supplementing system |
| CN105064418A (en) * | 2015-07-30 | 2015-11-18 | 浙江省建筑科学设计研究院有限公司 | Load box verification and load supplement integrated system |
| CN105133668A (en) * | 2015-07-30 | 2015-12-09 | 舟山市智海技术开发有限公司 | Load box |
| CN110331745A (en) * | 2019-07-12 | 2019-10-15 | 浙江欧感机械制造有限公司 | The method of plane of disruption engineering media filler is synchronously completed in the detection of self-balancing load box |
| CN114086611A (en) * | 2021-10-29 | 2022-02-25 | 浙江科技学院 | Device and method for increasing resistance bending moment in pile foundation self-balancing test |
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| JP2005320689A (en) * | 2004-05-06 | 2005-11-17 | Takenaka Komuten Co Ltd | Strain and settlement measuring method for testing vertical load on pile |
| KR100588761B1 (en) * | 2005-03-25 | 2006-06-09 | (주)지 텍크 | The bearing capacity measurement equipment and the measuring method of large diameter cast in place reinforced concrete pile using the bi-directions end bearing oil pressure loading equipment using the high-pressure loading system |
| CN1896712A (en) * | 2006-06-14 | 2007-01-17 | 郭杨 | Planar loading testing method and tester for self-balanced deep foundation piles |
| CN101435206A (en) * | 2008-12-19 | 2009-05-20 | 钱崑 | Pile body self-rebound force balance loading case |
| CN201339205Y (en) * | 2008-12-22 | 2009-11-04 | 钱崑 | Pile body self-reflection force balance loading box |
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2014
- 2014-03-20 CN CN201410104583.2A patent/CN103850276B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005320689A (en) * | 2004-05-06 | 2005-11-17 | Takenaka Komuten Co Ltd | Strain and settlement measuring method for testing vertical load on pile |
| KR100588761B1 (en) * | 2005-03-25 | 2006-06-09 | (주)지 텍크 | The bearing capacity measurement equipment and the measuring method of large diameter cast in place reinforced concrete pile using the bi-directions end bearing oil pressure loading equipment using the high-pressure loading system |
| CN1896712A (en) * | 2006-06-14 | 2007-01-17 | 郭杨 | Planar loading testing method and tester for self-balanced deep foundation piles |
| CN101435206A (en) * | 2008-12-19 | 2009-05-20 | 钱崑 | Pile body self-rebound force balance loading case |
| CN201339205Y (en) * | 2008-12-22 | 2009-11-04 | 钱崑 | Pile body self-reflection force balance loading box |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064417A (en) * | 2015-07-30 | 2015-11-18 | 舟山市智海技术开发有限公司 | Load case detection and load supplementing system |
| CN105064418A (en) * | 2015-07-30 | 2015-11-18 | 浙江省建筑科学设计研究院有限公司 | Load box verification and load supplement integrated system |
| CN105133668A (en) * | 2015-07-30 | 2015-12-09 | 舟山市智海技术开发有限公司 | Load box |
| CN110331745A (en) * | 2019-07-12 | 2019-10-15 | 浙江欧感机械制造有限公司 | The method of plane of disruption engineering media filler is synchronously completed in the detection of self-balancing load box |
| CN114086611A (en) * | 2021-10-29 | 2022-02-25 | 浙江科技学院 | Device and method for increasing resistance bending moment in pile foundation self-balancing test |
| CN114086611B (en) * | 2021-10-29 | 2023-02-28 | 浙江科技学院 | Device and method for increasing resistance bending moment in pile foundation self-balancing test |
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| CN103850276B (en) | 2016-02-10 |
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Address after: 330200 No. 6, Fuqi Road, Jinsha Fourth Road, Xiaolan Economic Development Zone, Nanchang City, Jiangxi Province Patentee after: Yongqi Technology Testing Co.,Ltd. Address before: 330200 No. 6, Fuqi Road, Jinsha Fourth Road, Xiaolan Economic Development Zone, Nanchang City, Jiangxi Province Patentee before: NANCHANG YONGQI TECHNOLOGY DEVELOPMENT Co.,Ltd. |