CN102392463A - Pile foundation static loading test device - Google Patents
Pile foundation static loading test device Download PDFInfo
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- CN102392463A CN102392463A CN2011103076992A CN201110307699A CN102392463A CN 102392463 A CN102392463 A CN 102392463A CN 2011103076992 A CN2011103076992 A CN 2011103076992A CN 201110307699 A CN201110307699 A CN 201110307699A CN 102392463 A CN102392463 A CN 102392463A
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- base section
- push rod
- connecting rod
- hinged
- joint
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Abstract
The invention discloses a pile foundation static loading test device. The device is characterized in that an ejector rod is composed of a base section ejector rod and linkage section ejector rods, the base section ejector rod is a cylinder with a base section head cover, and the lower part of the base section ejector rod is provided with a base section flange plate; the linkage section ejector rods are hollow cylinders and the two ends of the linkage section ejector rod are provided with linkage section flange plates, and the base section flange plate and the linkage section flange plates are fixed together through a bolt; the linkage section flange plates of two linkage section ejector rods are fixed together through the bolt, and the base section ejector rod and linkage section ejector rods are sleeved on a pile to be tested; a connecting rod is composed of an outer ring connecting rod and an inner ring connecting rod, one end of the outer ring connecting rod is articulated on the base section ejector rod, and the other end of the outer ring connecting rod is articulated on a soil-bearing base; and one end of the inner ring connecting rod is articulated on the linkage section ejector rods, and the other end of the inner ring connecting rod is articulated on the soil-bearing base. The test device provided by the invention has the advantages that steel beam size of a counterforce device is decreased, the assembling is convenient and rapid, the applicability is larger, the construction operation is more rapid, the waste is not generated in a testing process, thus the device is energy-saving, is environmentally-friendly, and the experimental cost is low.
Description
Technical field:
The present invention relates to technical field of buildings, more specifically to the equipment that carries out dead load test on pile foundation in the building field, preloading counterweight when it is applied to static loading tests such as pile for prestressed pipe, tube-sinking cast-in-situ pile, bored pile.
Background technology:
In the dead load test on pile foundation, effect is provided by counterforce device with the counter-force on stake top, and the easy-to-use degree of counterforce device not only influences the cost input of dead load test on pile foundation, also affects the result of dead load test on pile foundation simultaneously; What the dead load test on pile foundation counterforce device was commonly used at present is preloading reaction beam device and anchoring pile reaction beam device.
The general test pile periphery of anchoring pile reaction beam device will have suitable stake position to arrange, if the ad hoc anchoring pile of dead load test on pile foundation, that cost is too big; And the end portion treatment of anchoring pile and anchoring pile also the connection processing cost of girder steel are also bigger, and the reaction beam of large-tonnage pile foundation test is also very heavy, and transportation increases the pile foundation test cost with that cost is installed is bigger.
During preloading reaction beam device experiment, its bearing platform is built simply, not influenced by surrounding piles face office, and counter-force preloading thing can be taken generation and adorned sandstone or place soil etc., and applicability is strong; But during the large-tonnage pile foundation test, because the influence of the amount of deflection of girder steel, preloading thing in bulk caves in easily; Influence process of the test; If structure overlap joint property such as employing bar shaped concrete piece are the preloading thing preferably, though can prevent protruding the caving in of girder steel drum, the transportation and the installation cost of preloading thing increase greatly.
Summary of the invention:
The object of the invention is exactly the deficiency to prior art, and a kind of dead load test on pile foundation device is provided, and it has not only made full use of each item advantage of preloading reaction beam device, the preloading thing that possibly occur when having solved the large-tonnage test problem of caving in; Also structurally optimize, reduced the girder steel size of counterforce device, easy to assembly quick; Applicability is bigger, and constructing operation is quicker, and in process of the test; No generation of waste materials, energy-conserving and environment-protective, experimentation cost is low.
Technological solution of the present invention is following:
A kind of dead load test on pile foundation device comprises test pile to be measured, connecting rod, push rod by the base section push rod be connected the joint push rod form, the base section push rod is the cylindrical shell that has the base section top cover, base section push rod bottom forms the base section flange; Connecting the joint push rod is that hollow cylinder and two ends form connection joint flange; The base section flange be connected joint method half dish together through bolt; Two connection joint flange that connect the joint push rod pass through bolt together, and the base section push rod saves top stem casing on test pile to be measured with being connected;
Connecting rod is made up of outer ring connecting rod and inner ring connecting rod, and connecting rod one end in outer ring is hinged on the base section push rod, the other end is hinged on and holds on the soil seat, and inner ring connecting rod one end is hinged on the connection joint push rod, the other end is hinged on and holds on the soil seat.
Form the hinged ear of base section on the said base section push rod, the outer ring connecting rod is hinged on the hinged ear of base section through pin; Connect to form on the joint push rod to connect and save hinged ear, the inner ring connecting rod is hinged on through pin and connects on the hinged ear of joint.
Be welded with on the said base section push rod and carry ear and base section is carried ear, connect to be welded with on the joint push rod and connect Jie Tier.
Said base section push rod is 325mm with being connected the diameter that saves push rod, and length is 1200mm.
The said soil seat that holds is made up of bottom steel I-beam, upper strata steel I-beam and plank; Outer ring connecting rod and inner ring connecting rod all are hinged on the bottom steel I-beam through pin; The upper strata steel I-beam is placed on the bottom steel I-beam, and plank is placed on the steel I-beam of upper strata, and mound is placed on the plank.
Said bottom steel I-beam adopts the 28a i iron, and length is three kinds of 6000mm, 4000mm and 2000mm, and the upper strata steel I-beam adopts the 22a i iron, and length is three kinds of 6000mm, 4000mm and 2000mm.
Outstanding effect of the present invention is:
1, present technique adopts umbrella shape frame preloading device, has not only made full use of each item advantage of preloading reaction beam device, the preloading thing that possibly occur when having solved the large-tonnage test problem of caving in; Also structurally optimize, reduced the girder steel size of counterforce device, easy to assembly quick; Applicability is bigger, and constructing operation is quicker, and in process of the test; No generation of waste materials, energy-conserving and environment-protective, experimentation cost is low.
2, realized tool-type assemblingization structure, under the requirement of satisfying the different tests tonnage, accomplished that applicability is wide, mounting or dismounting are simple.
3, it realizes that as far as possible the original place draws materials, and optimized Structure Design has reduced scantling.
4, it only needs excavator to cooperate preloading soil, need not big machinery.
Description of drawings:
Fig. 1 is a schematic perspective view of the present invention
Fig. 2 is the schematic perspective view of base section push rod
Fig. 3 changes the schematic perspective view of viewed for the base section push rod
Fig. 4 is the base section push rod and be connected the annexation schematic perspective view that saves push rod
Among the figure: 1, test pile to be measured; 2, connecting rod; 21, outer ring connecting rod; 22, inner ring connecting rod; 3, push rod; 31, base section push rod; 311, base section top cover; 312, base section flange; 313, the hinged ear of base section; 314, carry ear on; 315, base section is carried ear; 32, connect the joint push rod; 321, connect the joint flange; 322, connect the hinged ear of joint; 323, connect Jie Tier; 4, hold the soil seat; 41, bottom steel I-beam; 42, upper strata steel I-beam; 43, plank; 5, soil.
The specific embodiment:
Embodiment: see shown in Fig. 1 to 4; A kind of dead load test on pile foundation device comprises test pile to be measured 1, connecting rod 2, push rod 3 by base section push rod 31 be connected joint push rod 32 and form; Base section push rod 31 is for having the cylindrical shell of base section top cover 311, and base section push rod 31 bottoms form base section flange 312; Connecting joint push rod 32 is that hollow cylinder and two ends form connection joint flange 321; Base section flange 312 be connected the joint method partly coil 321 through bolt together; Two connections joint flange 321 that connect joint push rods 32 through bolt together, base section push rod 31 saves push rod 32 and is enclosed within on the test pile 1 to be measured with being connected;
Connecting rod 2 is made up of outer ring connecting rod 21 and inner ring connecting rod 22, and connecting rod 21 1 ends in outer ring are hinged on base section push rod 31, the other end is hinged on and holds on the soil seat 4, and inner ring connecting rod 22 1 ends are hinged on the connection joint push rod 32, the other end is hinged on and holds on the soil seat 4.
Form the hinged ear 313 of base section on the said base section push rod 31, outer ring connecting rod 21 is hinged on the hinged ear 313 of base section through pin; Connect to form on the joint push rod 32 to connect and save hinged ear 322, inner ring connecting rod 22 is hinged on through pin and connects on the hinged ear 322 of joint.
Be welded with on the said base section push rod 31 and carry ear 314 and carry ear 315, connect to be welded with on the joint push rod 32 and connect joint and carries ear 323 with base section.
Said base section push rod 31 is 325mm with being connected the diameter that saves push rod 32, and length is 1200mm.
The said soil seat 4 of holding is made up of bottom steel I-beam 41, upper strata steel I-beam 42 and plank 43; Outer ring connecting rod 21 all is hinged on the bottom steel I-beam 41 through pin with inner ring connecting rod 22; Upper strata steel I-beam 42 is placed on the bottom steel I-beam 41; Plank 43 is placed on the upper strata steel I-beam 42, and soil 5 is deposited on the plank 43.
Said bottom steel I-beam 41 adopts the 28a i iron, and length is three kinds of 6000mm, 4000mm and 2000mm, and upper strata steel I-beam 42 adopts the 22a i iron, and length is three kinds of 6000mm, 4000mm and 2000mm.
Operating principle: save on the push rod 32 because outer ring connecting rod 21 all is hinged on bottom steel I-beam 41, base section push rod 31 through pin with inner ring connecting rod 22 and is connected, so dismounting is very simple.When it uses, adopt excavator to cooperate preloading, need not big machinery.Its push rod 3, connecting rod 2 and hold soil seat 4 and fit together the back and form the umbrella shape frame; Utilize shaped steel umbrella shape frame integral rigidity good, the characteristic that component stability property is high is followed according to the needed counter-force size of test pile; Make the umbrella shape frame that assembling is fit to; In the umbrella shape frame, banket, to satisfy the required counter-force of static loading test, the integrality of guarantee test process and accuracy.
On carry ear 314, base section carry ear 315 be connected joint carry ear 323 convenient in use move and conveniently move base section push rod 31 more easily and is connected save push rod 32, it has brought facility to site operation.
Compared with prior art the present invention has following characteristics in use: (seeing table one)
Table one
Claims (6)
1. dead load test on pile foundation device; Comprise test pile to be measured (1), connecting rod (2); It is characterized in that: push rod (3) by base section push rod (31) be connected the joint push rod (32) form; Base section push rod (31) is for having the cylindrical shell of base section top cover (311), and base section push rod (31) bottom forms base section flange (312); Connecting joint push rod (32) is that hollow cylinder and two ends form connection joint flange (321); Base section flange (312) be connected joint method half dish (321) together through bolt; Two connections joint flange (321) that connect joint push rods (32) through bolt together, base section push rod (31) saves push rod (32) and is enclosed within on the test pile to be measured (1) with being connected;
Connecting rod (2) is made up of outer ring connecting rod (21) and inner ring connecting rod (22); Connecting rod (21) one ends in outer ring are hinged on base section push rod (31), the other end and are hinged on and hold on the soil seat (4), and inner ring connecting rod (22) one ends are hinged on and connect that joint push rod (32) is gone up, the other end is hinged on and holds on the soil seat (4).
2. a kind of dead load test on pile foundation device according to claim 1 is characterized in that: form the hinged ear of base section (313) on the base section push rod (31), outer ring connecting rod (21) is hinged on the hinged ear of base section (313) through pin; Connect to form on the joint push rod (32) to connect and save hinged ear (322), inner ring connecting rod (22) is hinged on through pin and connects on the hinged ear of joint (322).
3. a kind of dead load test on pile foundation device according to claim 1 is characterized in that: be welded with on the base section push rod (31) and carry ear (314) and base section is carried ear (315), connect to be welded with on the joint push rod (32) and connect Jie Tier (323).
4. a kind of dead load test on pile foundation device according to claim 1 is characterized in that: base section push rod (31) is 325mm with the diameter that is connected joint push rod (32), and length is 1200mm.
5. a kind of dead load test on pile foundation device according to claim 1 and 2; It is characterized in that: hold soil seat (4) and form by bottom steel I-beam (41), upper strata steel I-beam (42) and plank (43); Outer ring connecting rod (21) and inner ring connecting rod (22) all are hinged on the bottom steel I-beam (41) through pin; Upper strata steel I-beam (42) is placed on the bottom steel I-beam (41), and plank (43) is placed on the upper strata steel I-beam (42), and soil (5) is deposited on the plank (43).
6. a kind of dead load test on pile foundation device according to claim 5; It is characterized in that: bottom steel I-beam (41) adopts the 28a i iron; Length is three kinds of 6000mm, 4000mm and 2000mm; Upper strata steel I-beam (42) adopts the 22a i iron, and length is three kinds of 6000mm, 4000mm and 2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103076992A CN102392463A (en) | 2011-10-12 | 2011-10-12 | Pile foundation static loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103076992A CN102392463A (en) | 2011-10-12 | 2011-10-12 | Pile foundation static loading test device |
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| Publication Number | Publication Date |
|---|---|
| CN102392463A true CN102392463A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103076992A Pending CN102392463A (en) | 2011-10-12 | 2011-10-12 | Pile foundation static loading test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106926A (en) * | 2019-05-15 | 2019-08-09 | 陕西长地建设工程质量检测有限公司 | A kind of pile foundation accumulated loading test counter-force umbrella shape frame |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385586A (en) * | 2002-06-17 | 2002-12-18 | 浙江大学 | Vacuum negative pressure static force pile testing method and device thereof |
| CN201031400Y (en) * | 2007-05-18 | 2008-03-05 | 河北省建筑科学研究院 | Combined anchored internally supporting static loading tester |
| CN201071515Y (en) * | 2007-09-10 | 2008-06-11 | 黄河勘测规划设计有限公司工程物探研究院 | Combined type inclined drawing column umbrella counterforce device |
| CN202280090U (en) * | 2011-10-12 | 2012-06-20 | 浙江宝业建设集团有限公司 | Static load test device for pile foundation |
-
2011
- 2011-10-12 CN CN2011103076992A patent/CN102392463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385586A (en) * | 2002-06-17 | 2002-12-18 | 浙江大学 | Vacuum negative pressure static force pile testing method and device thereof |
| CN201031400Y (en) * | 2007-05-18 | 2008-03-05 | 河北省建筑科学研究院 | Combined anchored internally supporting static loading tester |
| CN201071515Y (en) * | 2007-09-10 | 2008-06-11 | 黄河勘测规划设计有限公司工程物探研究院 | Combined type inclined drawing column umbrella counterforce device |
| CN202280090U (en) * | 2011-10-12 | 2012-06-20 | 浙江宝业建设集团有限公司 | Static load test device for pile foundation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106926A (en) * | 2019-05-15 | 2019-08-09 | 陕西长地建设工程质量检测有限公司 | A kind of pile foundation accumulated loading test counter-force umbrella shape frame |
| CN110106926B (en) * | 2019-05-15 | 2020-10-30 | 陕西长地建设工程质量检测有限公司 | Counter-force umbrella-shaped frame for pile foundation loading test |
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Application publication date: 20120328 |