CN209907359U - Simple device for laterally fixing soil pressure cell - Google Patents
Simple device for laterally fixing soil pressure cell Download PDFInfo
- Publication number
- CN209907359U CN209907359U CN201920292257.7U CN201920292257U CN209907359U CN 209907359 U CN209907359 U CN 209907359U CN 201920292257 U CN201920292257 U CN 201920292257U CN 209907359 U CN209907359 U CN 209907359U
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- China
- Prior art keywords
- soil pressure
- angle steel
- pedestal
- pressure cell
- reinforcement
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- Expired - Fee Related
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- 239000002689 soil Substances 0.000 title claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 57
- 230000002787 reinforcement Effects 0.000 claims abstract description 46
- 239000012528 membrane Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 abstract description 56
- 238000000034 method Methods 0.000 abstract description 15
- 238000010276 construction Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 210000003205 muscle Anatomy 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Abstract
The utility model discloses a simple and easy device of fixed soil pressure cell of side direction, including angle bar pedestal, hoop positioning reinforcement and opposite side hoop positioning reinforcement. The circumferential positioning steel bars and the circumferential positioning steel bars on the opposite sides are welded and fixed on the two opposite sides of the steel reinforcement cage at unequal intervals and are respectively positioned on the back pit surface and the head pit surface; the pedestal is welded and fixed between the two circumferential positioning steel bars of the back pit surface. The utility model has simple structure, only needs to use a small amount of angle steel welding to manufacture the pedestal, has high welding and assembling speed, and does not influence the subsequent construction; the utility model has accurate positioning, smaller offset in subsequent construction, and the arrangement of the annular positioning ribs on the opposite sides ensures that the soil pressure box device can be tightly attached to the soil body after the steel reinforcement cage is placed; the utility model discloses a thereby fixing device can get up whole soil pressure cell protection with the help of location muscle and pedestal lower bolster, avoids the cement thick liquid to condense on soil pressure cell surface in the concrete placement in-process, influences measurement accuracy.
Description
Technical Field
The utility model relates to a geotechnical engineering control technical field of measurationing, in particular to fixed soil pressure cell's of side direction simple and easy device.
Background
The soil pressure cell is a device for testing the stress of rock-soil mass on site, and is widely applied to the field of geotechnical engineering such as side slopes, road beds, foundation pits and the like. The development of the soil pressure gauge is gradually mature, the soil pressure gauge with the built-in vibrating string type sensor is commonly used in the market at present, the soil pressure gauge has the advantages of high sensitivity, good precision, good stability, relatively low price and the like, and the soil pressure gauge can be buried in soil bodies such as retaining walls, anti-slide piles, soil dikes, buildings, slopes, roadbed and the like, so that the change of internal stress can be tested for a long time. In engineering practice, lateral soil pressure has a large influence on building structures, so most of the soil pressure boxes are vertically arranged in the soil body. Because the soil pressure cell is located between supporting construction and the ground body, operating space is narrow, has the problem of location, fixed difficulty in the actual installation. The side fixing embedding method of the soil pressure cell commonly used at present comprises several methods: the cloth hanging method, the top inserting method, the bullet inserting method, the drilling method, the embedding method and the like are common. Although the method can meet the requirement of the contact between the stress surface and the soil body, the measure cost is high, the field processing of the device is difficult, and the construction is inconvenient.
Disclosure of Invention
To the inconvenient, the higher problem of expense of soil pressure cell side direction fixing device processing at the job site among the prior art, the utility model provides a device of the fixed soil pressure cell of side direction that the structure is simple and easy, the preparation is convenient can guarantee that the soil pressure cell hugs closely in the ground body surface that awaits measuring, plays the effect of protection soil pressure cell simultaneously.
In order to achieve the technical purpose, the technical proposal of the utility model is that,
a simple device for laterally fixing a soil pressure cell comprises a reinforcement cage 3, an angle steel fixing pedestal 2, a first positioning reinforcement 301, a second positioning reinforcement 302 and a widened positioning reinforcement 303; reinforcement cage 3 set up and tangent with the reinforcement cage in foundation ditch lateral wall department and foundation ditch lateral wall, first registration reinforcement 301 and second registration reinforcement 302 be fixed in reinforcement cage 3 and the tangent department of foundation ditch lateral wall, and form the space that is used for holding fixed angle steel pedestal 2 between the two, widen back registration reinforcement 303 set up in the relative opposite side of the tangent department of reinforcement cage and foundation ditch lateral wall, angle steel pedestal 2 be fixed in between first registration reinforcement 301 and the second registration reinforcement 302, 2 internal fixation of angle steel pedestal have soil pressure cell 1, and the membrane surface contact foundation ditch lateral wall of soil pressure cell.
The simple and easy device of the fixed soil pressure cell of side direction, angle steel fixed pedestal 2 include that the cross-section is left side angle plate 201, right side angle plate 202 and pedestal angle steel bottom plate 203 of L type, left side angle plate 201 and right side angle plate 202 bilateral symmetry weld in the both ends of pedestal angle steel bottom plate 203 to make angle steel fixed pedestal 2 form under the vertical state open-top, the left and right sides is equipped with the baffle with the bottom, the front side opening, the opposite side forms the structure of "U" type baffle, in order to place the soil pressure cell.
The simple device for laterally fixing the soil pressure cell is characterized in that the soil pressure cell is placed in an angle steel fixing pedestal 2 consisting of angle steel plates, and the soil pressure cell is wound on the angle steel fixing pedestal 2 by using a waterproof adhesive tape.
The utility model discloses the technological effect lies in, adopts the utility model discloses soil pressure cell is arranged to the side direction, can reliably provide a relatively fixed restraint, lets soil pressure cell can paste tight soil wall, is difficult for the off normal. The utility model discloses the device can accomplish burying underground of soil pressure cell when fender pile construction, need not to make the catapult or the top pusher of the inconvenient processing in scene, also need not drill and buries underground, to the smoothness nature of guaranteeing the site operation, simple feasible and save time. According to the on-the-spot duration of a period of time survey, use the utility model discloses a soil pressure cell survey value of fixing device installation is accurate, and the soil pressure curve accords with anticipated theoretical curve, can satisfy the scientific research requirement of ground monitoring. The device has reasonable design and wide stratum applicability, and can be popularized in related engineering application.
Drawings
FIG. 1 is a general schematic diagram of an earth pressure cell arrangement;
FIG. 2 is a front view of the stationary table base;
FIG. 3 is a side view of the stationary table base;
FIG. 4 is a rear view of the stationary pedestal;
FIG. 5 is a top view of the earth pressure cell fixture arrangement;
fig. 6 is a sectional view showing the arrangement of the earth pressure cell fixing means.
The reference numerals in the figures are illustrated as follows: the method comprises the following steps of 1-soil pressure box, 2-angle steel fixing pedestal, 3-steel reinforcement cage, 101-soil pressure gauge, 102-lead, 201-left side angle steel plate, 202-right side angle steel plate, 203-pedestal angle steel bottom plate, 301-first positioning steel bar, 302-second positioning steel bar, 303-widened positioning steel bar, 304-steel reinforcement cage main bar, 305-spiral stirrup and 306-annular erection steel bar.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-6, the present invention provides a device and method for vertically fixing a soil pressure cell in a cast-in-situ bored pile. The device comprises a reinforcement cage 3, an angle steel fixing pedestal 2, a first positioning reinforcement 301, a second positioning reinforcement 302 and a widened positioning reinforcement 303 on the opposite side; the first positioning steel bar 301 and the second positioning steel bar 302 are welded on one side of the steel bar cage 3, and the side is specified as a back pit side and faces the outside of the foundation pit; welding the positioning steel bars 303 after widening to one side opposite to the steel bar cage 3, and setting the opposite side as a pit facing side facing the inside of the foundation pit; the angle steel fixing pedestal 2 is welded between the first positioning steel bar 301 and the second positioning steel bar 302 and is H-shaped; the pedestal is placed in a direction that needs to make the membrane surface of the soil pressure cell face outwards.
The angle steel fixing pedestal 2 can be formed by welding and processing a left side angle steel plate 201, a right side angle steel plate 202 and a pedestal angle steel bottom plate 203; the left side angle steel plate 201 and the right side angle steel plate 202 are welded at two ends of the angle steel bottom plate 203 of the pedestal in a bilateral symmetry manner to form a U-shaped space structure for placing the soil pressure cell.
The soil pressure cell is placed in a U-shaped pedestal formed by three angle steel plates, and is wound on the angle steel fixing pedestal 2 in a cross mode by using waterproof adhesive tapes, so that the soil pressure cell and the angle steel fixing pedestal are firmly bonded.
The steel angle fixing device comprises an angle steel pedestal (for fixing), 2 circumferential positioning steel bars (for fixing) and a circumferential positioning steel bar (for pushing) which are used as main components of the fixing device; the angle steel pedestal is arranged between two annular positioning steel bars, clamped and welded; two hoop positioning steel bars for fixing are welded on a main rib of the steel reinforcement cage, and the hoop positioning steel bars for pushing are welded on the main rib on the opposite side of the steel reinforcement cage.
The utility model discloses a device design of the fixed soil pressure cell of side direction can lay on the angle steel pedestal with the firm soil pressure cell, the angle steel pedestal firmly welds between two spacer bars, the spacer bar after widening by opposite side positioning distance provides the thrust, transfer the in-process at the steel reinforcement cage, make soil pressure cell hug closely in test ground body surface but can not launch or push away and bury the device underground like other and can apply unnecessary pressure, moreover, the steam generator is simple in structure, draw materials on the spot, can solve the fixed difficulty of the installation of soil pressure cell at the scene, the problem of interference construction, and play the guard action to soil pressure cell.
The fixed angle steel pedestal is formed by cutting and welding angle steel materials or substituted steel materials on a construction site, mainly comprises a left side angle steel plate, a right side angle steel plate and a bottom angle steel plate, and is manufactured into a U-shaped groove structure.
Because the soil pressure cell of different range and model, its thickness size is also inequality, therefore the design and processing of pedestal should go on according to soil pressure cell thickness and size that adopts, ensures that the "U" groove space of pedestal can adapt soil pressure cell, and redundant space surely does not have too big. The clear distance between the angle steel plates at the two sides of the processed pedestal is preferably within 3mm larger than the diameter of the soil pressure cell.
After the soil pressure cell is placed on the processed angle steel pedestal, the soil pressure cell and the angle steel pedestal are wound for a plurality of circles by using the waterproof adhesive tape, so that the soil pressure cell and the angle steel pedestal are tightly bonded together.
The utility model discloses utilize relative one side to widen the spacer bar after, produce certain pushing effect to the ground body of opposite side, reverse hug closely the soil pressure cell to test ground body surface face, avoid the cement thick liquid to condense on soil pressure cell surface in the concrete placement in-process, influence the measuring accuracy.
The use method is described below in combination with the device of the present invention, which comprises the following steps:
(1) after the hole of the fender post is drilled and the steel reinforcement cage is welded, mounting the fender post;
(2) and (4) measuring on the reinforcement cage by using the long steel tape according to a test design scheme, and determining a test point and a force measuring direction. The earth pressure cell arrangement point is arranged on the opposite side of the embedded part at the end of the reinforcement cage;
(3) the method comprises the following steps of simply processing angle steel into a soil pressure cell pedestal with a uniform specification on site according to a designed size, and widening the distance of annular positioning ribs of a reinforcement cage on one side adjacent to a foundation pit by 3cm (plus or minus 1cm) more than the original distance;
(4) preparing and installing the required annular positioning ribs, the angle steel pedestal, the steel sleeve, the waterproof adhesive tape, the ribbon/binding wire and the soil pressure box with the conducting wire.
(5) Before formal embedding, the utility model suggests that one-time test embedding can be carried out, if the monitoring result reaction is normal reading and the soil pressure cell is normally pressed, the utility model is feasible under the geological condition of the site;
(6) the soil pressure cell with the corresponding length of the lead is arranged on the pedestal with the corresponding depth, the stress surface of the soil pressure cell faces the outer side of the reinforcement cage, the soil pressure cell is wound and stabilized by using a waterproof adhesive tape in a cross mode, and the gap between the pedestal and the soil pressure cell is filled with glass cement to play a role in reinforcing and bonding;
(7) and (4) leading the test lead of the soil pressure cell to the pile top along the main reinforcement of the steel bar, and fixing the test lead by using a binding wire. The lead is reserved for 20cm at the installation position of the soil pressure box, so that the connection position of the soil pressure box and the lead is prevented from being broken when a reinforcement cage is hung or concrete is poured;
(8) and during and after burying, collecting the reading of the soil pressure cell by using a testing instrument, and determining whether the soil pressure cell is buried successfully.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (3)
1. A simple device for laterally fixing a soil pressure cell is characterized by comprising a reinforcement cage (3), an angle steel fixing pedestal (2), a first positioning reinforcement (301), a second positioning reinforcement (302) and a widened positioning reinforcement (303); reinforcement cage (3) set up and tangent with the reinforcement cage in foundation ditch lateral wall department and foundation ditch lateral wall, first registration reinforcement (301) and second registration reinforcement (302) be fixed in reinforcement cage (3) and the tangent department of foundation ditch lateral wall, and form the space that is used for holding fixed angle steel pedestal (2) between the two, widen back registration reinforcement (303) set up in the relative opposite side of the tangent department of reinforcement cage and foundation ditch lateral wall, angle steel pedestal (2) be fixed in between first registration reinforcement (301) and second registration reinforcement (302), angle steel pedestal (2) internal fixation has soil pressure cell (1), and the membrane surface contact foundation ditch lateral wall of soil pressure cell.
2. The simple device for laterally fixing the soil pressure cell according to claim 1, wherein the angle steel fixing pedestal (2) comprises a left side angle steel plate (201), a right side angle steel plate (202) and a pedestal angle steel bottom plate (203) which are all L-shaped in cross section, the left side angle steel plate (201) and the right side angle steel plate (202) are bilaterally symmetrically welded at two ends of the pedestal angle steel bottom plate (203), the angle steel fixing pedestal (2) is made to be opened at the top in a vertical state, the left side and the right side are provided with baffles at the bottom, the front side is opened, and the other side is made to be a U-shaped baffle structure so as to place the soil pressure cell.
3. The simplified device for laterally fixing a soil pressure cell according to claim 2, wherein the soil pressure cell is placed in an angle steel fixing pedestal (2) composed of angle steel plates, and the soil pressure cell is wound around the angle steel fixing pedestal (2) by a waterproof tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920292257.7U CN209907359U (en) | 2019-03-08 | 2019-03-08 | Simple device for laterally fixing soil pressure cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920292257.7U CN209907359U (en) | 2019-03-08 | 2019-03-08 | Simple device for laterally fixing soil pressure cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209907359U true CN209907359U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920292257.7U Expired - Fee Related CN209907359U (en) | 2019-03-08 | 2019-03-08 | Simple device for laterally fixing soil pressure cell |
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| Country | Link |
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| CN (1) | CN209907359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431183A (en) * | 2020-11-10 | 2021-03-02 | 陕西省建筑科学研究院有限公司 | Method for mounting soil pressure cell on side wall of pile |
-
2019
- 2019-03-08 CN CN201920292257.7U patent/CN209907359U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431183A (en) * | 2020-11-10 | 2021-03-02 | 陕西省建筑科学研究院有限公司 | Method for mounting soil pressure cell on side wall of pile |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |