CN205314093U - Excavation supporting structure of stake - Google Patents
Excavation supporting structure of stake Download PDFInfo
- Publication number
- CN205314093U CN205314093U CN201620024671.6U CN201620024671U CN205314093U CN 205314093 U CN205314093 U CN 205314093U CN 201620024671 U CN201620024671 U CN 201620024671U CN 205314093 U CN205314093 U CN 205314093U
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- layer
- hole
- stake
- hole section
- soil layer
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Abstract
The utility model provides an excavation supporting structure of stake, in soil layer, soil layer stake hole and pile body cement of excavation around including, the soil layer includes the collapse nature layer of layer and lower part of exchanging of upper portion on every side, the degree of depth in stake hole link up around whole the soil layer and divide into easily collapse hole section and natural hole section, bury underground on the pore wall of the hole section of easily collapsing be fixed with with equal height of hole section that easily collapse, with the hole pillar that the diameter of the hole section of easily collapsing suited, a hole pillar is the PVC pipe, pile body cement fills up within a hole pillar and the natural hole section. Stake hole pillar is the PVC pipe. The depth ratio on layer and nature layer of easily collapsing is 0.2~0.35. Easily cave in the layer for mucky soil layer, cohesive soil layer, silt layer, sand and soil layer, manual work banket layer or rubble soil layer. The utility model discloses the site operation of being convenient for, simple structure, easily the collapse effect of hole section intensity of protection that just reaches that can be very convenient.
Description
Technical field
The utility model relates to the constructions of protective wall of a kind of.
Background technology
Construction Technology of Jet Grouting Piles is the jet grouting being risen in nineteen seventies, eight, the nineties obtains development in an all-round way and application in the whole nation. The reclaimation area that Backfilled Stone Layer is thicker, the thickest Da Keda 15m. In the situation that this kind of construction site geological conditions is poor, in jet grouting pile construction process, particularly Backfilled Stone Layer and nature layer are drawn behind hole drawing hole machine, thicker Backfilled Stone Layer is very easy to subside, and especially affects the construction of pile body cement and follow-up construction.
Utility model content
The purpose of this utility model is to provide the pattern foundation pit supporting structure structure of a kind of, solve the thicker Backfilled Stone Layer existing in jet grouting pile construction process and hold givey technical problem.
For achieving the above object, the utility model adopts following technical scheme:
The pattern foundation pit supporting structure structure of a kind of, comprise around stake hole and the pile body cement of soil layer, the interior excavation of soil layer, described soil layer around comprises the nature layer of easily cave in layer and the bottom on top, the degree of depth in stake hole connects whole soil layer around and is divided into easily cave in hole section and natural hole section, on the hole wall of the hole section of easily caving in, bury underground and be fixed with stake hole pillar contour with the hole section of easily caving in, that adapt with the diameter of the hole section of easily caving in, described stake hole pillar is pvc pipe, within described pile body cement fills up a hole pillar and natural hole section.
The diameter width of described pvc pipe is 100mm～800mm.
The described layer that easily caves in is for silt soil strata, viscous soil horizon, powder soil horizon, sandy soil layer, artificial earth fill's layer or crushed stone soil layer.
Described depth ratio of easily caving in layer and nature layer is 0.2～0.35.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model adopts the stake hole pillar that the section degree of depth is identical is therewith set in the hole section of easily caving in of drawing after hole completes, and reaches and prevents from drawing the problem that hole subsides. The utility model is convenient to site operation, simple in structure, can just reach very easily easily the cave in effect of hole section intensity of protection. The utility model has good effect to processing mud, muck soil, cohesive soil, silt, sandy soil, artificial earth fill and gravelly soil etc.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is that construction procedure four of the present utility model completes schematic diagram.
Fig. 4 is that construction procedure five of the present utility model completes schematic diagram.
Fig. 5 is that construction procedure seven of the present utility model completes schematic diagram.
Reference numeral: 1-is easily cave in layer, 1.2-nature layer, 2-stake hole, 2.1-easily cave in hole section, 2.2-natural hole section, 3-pile body cement, 4-stake hole pillar of soil layer, 1.1-around.
Detailed description of the invention
Embodiment is referring to shown in Fig. 1-2, the pattern foundation pit supporting structure structure of a kind of, comprise around stake hole 2 and the pile body cement 3 of soil layer 1, the interior excavation of soil layer, described soil layer 1 around comprises the nature layer 1.2 of easily cave in layer 1.1 and the bottom on top, the degree of depth in stake hole connects whole soil layer around and is divided into easily cave in hole section 2.1 and natural hole section 2.2, and described depth ratio of easily caving in layer 1.1 and nature layer 1.2 is 0.2～0.35. On the hole wall of the hole section 2.1 of easily caving in, bury underground and be fixed with stake hole pillar 4 contour with the hole section of easily caving in, that adapt with the diameter of the hole section of easily caving in, within described pile body cement 3 fills up a hole pillar 4 and natural hole section 2.2. Described stake hole pillar 4 is pvc pipe or steel pipe. The present embodiment is pvc pipe. The diameter width of described stake hole pillar 4 is 100mm～800mm, and wall thickness is 1.5mm.
The described layer 1.1 that easily caves in is for silt soil strata, viscous soil horizon, powder soil horizon, sandy soil layer, artificial earth fill's layer or crushed stone soil layer. The present embodiment is crushed stone soil layer.
Work progress of the present utility model is as follows:
Shown in Fig. 3-5,
In the present embodiment, adopt high-pressure rotary jet grouting pile.
Step 1, high-pressure rotary-spray is due to pressure-air and water under high pressure cuts, displacement, will produce a large amount of soil cement slurries, and mud sediment ground should be set on the spot.
Step 2, arranges high-pressure pump, slush pump mixer, and pulping material stockyard and water, electricity, grout pipe line etc., and carry out maintenance and the debugging of plant.
Step 3, the setting-out of cloth hole is according to design drawing and description, and employing is drawn hole machine and is carried out the setting-out of position, hole.
Step 4, holes rig is in place. Drill bit accurately location is placed in the middle, and bore position and design attitude deviation are less than 10cm. Drilling cramp is corrected and is balanced, and drilling rod is vertical, and gradient is less than or equal to 1.5%, starts boring, in boring procedure, will often note drilling rod deflection situation, corrects in time.
Step 5, pvc pipe construction. According to design stake bore dia and the easy section of caving in stake hole depth, determine size and a specification for stake hole pillar, drawing after hole completes, stake hole pillar is inserted in stake hole, prevent from easily caving in and layer subside.
Step 6, prepared slarry. Utilize mixer to prepare the cement grout of pile body, mixing spray at any time at any time.
Step 7, intubate whitewashing. Churning facility are in place, proofread and correct frame levelness and spray supervisor's perpendicularity, intrusion pipe adopts middle pressure examination spray before inserting high spray orifice, whether unimpeded to check injection and grouting system, then with hoist engine, intrusion pipe is inserted to the drilling design degree of depth, start jet grouting operation, press pile experiment and determine hoisting velocity, and rotary speed, limit promotes sprinkling irrigation tube edge rotation, treats that jet pipe reaches within the scope of design length to stop whitewashing, and intrusion pipe is proposed to aperture, in boring, carry out Static Pressure Grouting, prevent that induration from forming spill.
Step 8, moving frame and flushing line. Pour into complete, moving frame, flushing line utensil, starts the construction in next hole.
Claims (4)
1. the pattern foundation pit supporting structure of stake structure, comprise soil layer (1) around, stake hole (2) and the pile body cement (3) of excavation in soil layer, it is characterized in that: described soil layer (1) around comprises the nature layer (1.2) of easily cave in layer (1.1) and the bottom on top, the degree of depth in stake hole connects whole soil layer around and is divided into easily cave in hole section (2.1) and natural hole section (2.2), easily cave in bury underground on the hole wall of hole section (2.1) be fixed with the hole section of easily caving in contour, with the diameter of the hole section of easily caving in adapt stake hole pillar (4), described stake hole pillar (4) is pvc pipe, within described pile body cement (3) fills up a hole pillar (4) and natural hole section (2.2).
2. the pattern foundation pit supporting structure of stake is constructed according to claim 1, it is characterized in that: the diameter width of described pvc pipe is 100mm～800mm.
3. the pattern foundation pit supporting structure of stake is constructed according to claim 1, it is characterized in that: the described layer (1.1) that easily caves in is for silt soil strata, viscous soil horizon, powder soil horizon, sandy soil layer, artificial earth fill's layer or crushed stone soil layer.
4. the pattern foundation pit supporting structure of stake is constructed according to claim 1, it is characterized in that: described depth ratio of easily caving in layer (1.1) and nature layer (1.2) is 0.2～0.35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024671.6U CN205314093U (en) | 2016-01-12 | 2016-01-12 | Excavation supporting structure of stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024671.6U CN205314093U (en) | 2016-01-12 | 2016-01-12 | Excavation supporting structure of stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205314093U true CN205314093U (en) | 2016-06-15 |
Family
ID=56202186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620024671.6U Expired - Fee Related CN205314093U (en) | 2016-01-12 | 2016-01-12 | Excavation supporting structure of stake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205314093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245666A (en) * | 2016-07-30 | 2016-12-21 | 张慧 | A kind of piling Technology |
| CN114352189A (en) * | 2022-01-07 | 2022-04-15 | 中铁二十局集团第六工程有限公司 | Construction method of jet grouting pile |
-
2016
- 2016-01-12 CN CN201620024671.6U patent/CN205314093U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245666A (en) * | 2016-07-30 | 2016-12-21 | 张慧 | A kind of piling Technology |
| CN114352189A (en) * | 2022-01-07 | 2022-04-15 | 中铁二十局集团第六工程有限公司 | Construction method of jet grouting pile |
| CN114352189B (en) * | 2022-01-07 | 2024-03-15 | 中铁二十局集团第六工程有限公司 | Construction method of jet grouting pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170112 |