CN206971210U - A kind of long casing in pile foundation construction - Google Patents

A kind of long casing in pile foundation construction Download PDF

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Publication number
CN206971210U
CN206971210U CN201720872497.5U CN201720872497U CN206971210U CN 206971210 U CN206971210 U CN 206971210U CN 201720872497 U CN201720872497 U CN 201720872497U CN 206971210 U CN206971210 U CN 206971210U
Authority
CN
China
Prior art keywords
casing
long casing
long
standard knot
hangs muscle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720872497.5U
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Chinese (zh)
Inventor
王晓
高建民
何均平
陈兵
邹道敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Southwest Architectural Design and Research Institute Co Ltd
Original Assignee
China Southwest Architectural Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Southwest Architectural Design and Research Institute Co Ltd filed Critical China Southwest Architectural Design and Research Institute Co Ltd
Priority to CN201720872497.5U priority Critical patent/CN206971210U/en
Application granted granted Critical
Publication of CN206971210U publication Critical patent/CN206971210U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Long casing in a kind of pile foundation construction of the present utility model, it is related to construction equipment technical field, needs to push using drilling bucket in decentralization process for existing steel pile casting, steel pile casting discontinuity equalization and easy run-off the straight, cause steel pile casting lowered position inaccurate, the problem of bringing difficulty to subsequent construction.It is assembled successively by some casing standard knots, and two neighboring casing standard knot is threadedly coupled using high-strength bolt, and cutting shoe is set positioned at the edge of the casing standard knot of bottom, positioned at the uniform some vertically arranged hangs muscles of the outer wall of the casing standard knot on top.

Description

A kind of long casing in pile foundation construction
Technical field
It the utility model is related to construction equipment technical field, the long casing in more particularly to a kind of pile foundation construction.
Background technology
Regular undergauge, collapse hole phenomenon after there is pore-forming, cause steel reinforcement cage, lattice column in mud area bored pile construction It can not sink, sleeve pipe can not pull, and part stake need to carry out multiple cleaning bottom of hole, secondary pore-forming, moreover, the perpendicularity of stand column pile lattice column Also can not ensure.The full casing construction of the generally use that solves the above problems, it is by the way that the casing section of multiple certain lengths is connected Together, in the stable soil layer of whole stake depth scope whole process press-in, cooperation is artificial, rushes the methods of grab bucket, rotary digging, impact drill fetches earth Pore-forming, the construction method again extracted steel pile casting after pore-forming, due to support of the steel pile casting to stratum and sealing function, avoids stake The caving in of hole, necking down, it is expanding the problems such as.
However, because existing steel pile casting needs to push using drilling bucket in decentralization process, steel pile casting discontinuity equalization and easily send out It is raw to tilt, cause steel pile casting lowered position inaccurate, difficulty is brought to subsequent construction.
The content of the invention
Need to push using drilling bucket in decentralization process for existing steel pile casting, steel pile casting discontinuity equalization and easily incline Tiltedly, cause steel pile casting lowered position inaccurate, the problem of bringing difficulty to subsequent construction.The purpose of this utility model is to provide one Long casing in kind pile foundation construction, the cutting shoe of long casing bottom can reduce the resistance of long casing decentralization, vertically be distributed in casing The hangs muscle of outer wall also acts as the effect of guiding, ensures stress equalization and accurate positioning during long casing decentralization.
Technical scheme is used by the utility model solves its technical problem:A kind of long casing in pile foundation construction, it Assembled successively by some casing standard knots, the two neighboring casing standard knot is threadedly coupled using high-strength bolt, is located at The edge of the casing standard knot of bottom sets cutting shoe, uniform some vertical positioned at the outer wall of the casing standard knot on top The hangs muscle of setting.
Preferably, the hangs muscle is by being vertically welded in the hangs muscle main body of the casing standard knot outer wall, and is fixed in described The crotch composition on hangs muscle main body top, and the bottom of the hangs muscle main body is in wedge angle.
Preferably, the outer wall of the long casing is also welded with some annular stiffening ribs, the annular stiffening rib by thickness 5~ 6mm, the highly steel plate more than or equal to 15cm are made.
Preferably, the bottom of the long casing penetratingly descends mud and gos deep into a height H, and H≤2m to stratum.
Preferably, the internal diameter of the long casing is bigger 20~40cm than stake footpath.
Preferably, the top of the long casing sets at least one extravasating hole.
Preferably, the both ends of the long casing are additionally provided with cross strut.
Effect of the present utility model is:Long casing in the pile foundation construction, positioned at the edge of the casing standard knot of bottom Cutting shoe is set, and the setting of cutting shoe can reduce the resistance of long casing decentralization, ensure that smoothly decentralization is in place for long casing, positioned at top The uniform some hangs muscles of the outer wall of casing standard knot, are easy to the suspension hook of hanging apparatus to be connected with long casing, moreover, being vertically distributed in shield The hangs muscle of drum outer wall also acts as the effect of guiding, ensures stress equalization and accurate positioning during long casing decentralization.
Brief description of the drawings
Fig. 1 is the structural representation of the long casing of the embodiment of the utility model one;
The top view of the long casing of the embodiment of Fig. 2 the utility model one.
Label is as follows in figure:
Long casing 10;Casing standard knot 11;Cutting shoe 12;Hangs muscle 14;Hangs muscle main body 14a;Crotch 14b;Annular stiffening rib 15; Cross strut 16.
Embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes a kind of pile foundation construction in long casing make into One step describes in detail.According to following explanation and claims, advantages and features of the present utility model will become apparent from.Need to illustrate , accompanying drawing use using very simplified form and non-accurately ratio, only to it is convenient, lucidly aid in illustrating originally The purpose of utility model embodiment.For sake of convenience, the upper and lower direction of " on ", " under " with accompanying drawing described below is consistent, But this can not turn into the limitation of technical solutions of the utility model.
The present embodiment is by taking certain engineering as an example, and according to the situation of live mud area engineering pile drilled-hole inspecting, mud is in pore-forming Occur serious undergauge and to collapse afterwards, cause that steel reinforcement cage can not transfer and conduit lifting is difficult, especially 5~7m of hole depth and 12~ Undergauge is serious at 15m, and stake footpath only has 337mm during undergauge most serious, and this scope is just being rinse fill mud, and the filling of shape is moulded in stream Soil is the geologic(al) factor that considerable influence be present to engineering building enclosure and pile foundation construction, and rinse fill is the silt from the bottom of lake in nearly 3 years The mud mixed with mud scum, averagely embedded 7~8m, bosom reach 12m, and the construction to cast-in-situ bored pile causes extreme difficulties.
To solve the problem, engineering pile that this engineering is constructed in mud, stand column pile take full casing arrangement and method for construction, long Casing 10 is made of Q235 steel, length 9m, right through mud, to prevent collapse hole again in mud ostium.Long casing 10 Arrangement and method for construction is specially:The stake holes 1 first grown with the drill bit of bigger diameter into 9m, after the completion of under lengthen casing 10, long casing 10 Embedding to be higher by construction ground 0.3m, the long top of casing 10, which is fixed on the cushion cap of ground, prevents its landing, then, transfer steel reinforcement cage and Lattice column, filling concrete is completed according still further to normal drill construction process of bored concrete pile, pulling casing 10 is played after concrete initial set.
Illustrate the long casing in a kind of pile foundation construction of the present utility model with reference to Fig. 1 and Fig. 2, it is by some casing marks Quasi- section 11 is assembled successively, and two neighboring casing standard knot 11 is threadedly coupled using high-strength bolt, the casing mark positioned at bottom The edge of quasi- section 11 sets cutting shoe 12, positioned at the uniform some vertically arranged hangs muscles 14 of the outer wall of the casing standard knot 11 on top.
Long casing in a kind of pile foundation construction of the present utility model, sword is set positioned at the edge of the casing standard knot 11 of bottom Pin 12, the setting of cutting shoe 12 can reduce the resistance that long casing 10 is transferred, and ensureing long casing 10, smoothly decentralization is in place, positioned at top Casing standard knot 11 the uniform some hangs muscles 14 of outer wall, be easy to the suspension hook of hanging apparatus to be connected with long casing 10, moreover, vertically The hangs muscle 14 for being distributed in casing outer wall also acts as the effect of guiding, ensures stress equalization and accurate positioning when long casing 10 is transferred.
Please continue to refer to Fig. 1, hangs muscle 14 is and affixed by being vertically welded in the hangs muscle main body 14a of the outer wall of casing standard knot 11 Crotch 14b in hangs muscle main body 14a tops is formed, and hangs muscle main body 14a bottom is in wedge angle, hangs muscle main body 14a above-mentioned knot Structure is easy to long casing 10 to go deep into soil layer, and hangs muscle 14 can be made up of reinforcing bar, and convenient material drawing is easy to process.
More preferably, the outer wall of above-mentioned long casing 10 is also welded with some annular stiffening ribs 15, and annular stiffening rib 15 enhances The structural strength of long casing 10, annular stiffening rib 15 are made up of 5~6mm of thickness, the highly steel plate more than or equal to 15cm.
The bottom of above-mentioned long casing 10 penetratingly descends mud and gos deep into a height H, and H≤2m to stratum, to prevent mud Flow into stake holes and cause collapse hole again.
The internal diameter of above-mentioned long casing 10 is bigger 20~40cm than stake footpath, and the internal diameter size of long casing 10 should meet rig in hole Swing and require.
The top of above-mentioned long casing 10 opens up at least one extravasating hole, is easy to cement mortar outflow excessive in stake holes.
As shown in Fig. 2 the both ends of long casing 10 are additionally provided with cross strut 16, the end of cross strut 16 with long casing 10 welding, it can prevent long casing 10 from deforming under pressure.
Above-mentioned casing standard knot 11 is made up of 5~10mm of thickness steel plate, ensures that the intensity of casing standard knot 11 meets to apply Work requirement.
Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model Calmly, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content, belonging to right will Seek scope.

Claims (7)

  1. A kind of 1. long casing in pile foundation construction, it is characterised in that:It is assembled successively by some casing standard knots, and adjacent two The individual casing standard knot is threadedly coupled using high-strength bolt, and cutting shoe is set positioned at the edge of the casing standard knot of bottom, Positioned at the uniform some vertically arranged hangs muscles of the outer wall of the casing standard knot on top.
  2. 2. long casing according to claim 1, it is characterised in that:The hangs muscle is by being vertically welded in the casing standard knot The hangs muscle main body of outer wall, and the crotch composition on the hangs muscle main body top is fixed in, and the bottom of the hangs muscle main body is in wedge angle.
  3. 3. long casing according to claim 1 or 2, it is characterised in that:The outer wall of the long casing is also welded with some rings Shape ribs, the annular stiffening rib are made up of 5~6mm of thickness, the highly steel plate more than or equal to 15cm.
  4. 4. long casing according to claim 1 or 2, it is characterised in that:Mud is penetratingly descended in the bottom of the long casing And go deep into a height H, and H≤2m to stratum.
  5. 5. long casing according to claim 1 or 2, it is characterised in that:The internal diameter of the long casing is bigger than stake footpath by 20~ 40cm。
  6. 6. long casing according to claim 1 or 2, it is characterised in that:The top of the long casing sets at least one overflow Starch hole.
  7. 7. long casing according to claim 1 or 2, it is characterised in that:The both ends of the long casing are additionally provided with cross Bar.
CN201720872497.5U 2017-07-18 2017-07-18 A kind of long casing in pile foundation construction Expired - Fee Related CN206971210U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720872497.5U CN206971210U (en) 2017-07-18 2017-07-18 A kind of long casing in pile foundation construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720872497.5U CN206971210U (en) 2017-07-18 2017-07-18 A kind of long casing in pile foundation construction

Publications (1)

Publication Number Publication Date
CN206971210U true CN206971210U (en) 2018-02-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720872497.5U Expired - Fee Related CN206971210U (en) 2017-07-18 2017-07-18 A kind of long casing in pile foundation construction

Country Status (1)

Country Link
CN (1) CN206971210U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780359A (en) * 2019-01-17 2019-05-21 包头钢铁(集团)有限责任公司 A kind of portable pipe operation safe device
CN111455992A (en) * 2020-03-20 2020-07-28 中电建十一局工程有限公司 Full-casing follow-up construction method for rotary drilling rig

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780359A (en) * 2019-01-17 2019-05-21 包头钢铁(集团)有限责任公司 A kind of portable pipe operation safe device
CN111455992A (en) * 2020-03-20 2020-07-28 中电建十一局工程有限公司 Full-casing follow-up construction method for rotary drilling rig

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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: 20180206

Termination date: 20180718

CF01 Termination of patent right due to non-payment of annual fee