CN107503354A - A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method - Google Patents
A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method Download PDFInfo
- Publication number
- CN107503354A CN107503354A CN201610413617.5A CN201610413617A CN107503354A CN 107503354 A CN107503354 A CN 107503354A CN 201610413617 A CN201610413617 A CN 201610413617A CN 107503354 A CN107503354 A CN 107503354A
- Authority
- CN
- China
- Prior art keywords
- tower crane
- steel sheet
- sheet pile
- purlin
- construction
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
Abstract
A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method, it is characterised in that comprises the following steps：A, according to tower crane position for Larsen steel sheet pile carry out line setting, b, according to line setting excavate groove, c, squeeze into steel sheet pile；Carry out first stage shoveling, d, weld purlin, add support, purlin support diagonal brace carries out full weld processing with steel sheet pile welding, e, Larsen steel sheet pile purlin and support are both needed to construction completion, f, carry out tower crane installation, reinforcing bar, template construction, g, after the completion of foundation construction, after tower crane construction base concrete reaches the 70% of intensity, carry out backfilling of earthwork, remove steel purlin, extract Larsen steel sheet pile.It is difficult with solving tower crane deep pit digging in soft soil foundation that the tower crane of the present invention goes along with sb. to guard him bracing reinforcement and excavation method, tower crane and basement is effectively avoided to occur earthwork slope failure unstability during soft soil foundation earth excavation, the advantages of saving the duration and reduce engineering cost.
Description
Technical field
The present invention relates to a kind of basis of civil engineering to go along with sb. to guard him excavation method, is that a kind of tower crane is gone along with sb. to guard him specifically
Bracing reinforcement and excavation method.
Background technology
Growing with China's urban construction, more and more skyscrapers are rised sheer from level ground, must not as construction
The vertical transportation machinery that can lack, tower crane obtain because of the features such as its lifting altitude is big, broad covered area in modern industry and civil buildings
Used to extensive.According to project characteristic, architecture structure form, spot plane rational management selection tower crane plan-position and basis
Form, tower crane is arranged on ground storehouse and excavation slope is relatively conventional, during earth excavation, especially in soft soil foundation
Excavated under the conditions of matter, if attention degree is insufficient, is easily caused tower crane pile foundation and periphery engineering pile and is extruded by the earthwork or cave in and cause stake
Base failure by shear, further triggers security incident, so as to cause duration, economic damages.
Therefore known tower crane go along with sb. to guard him bracing reinforcement and digging mode there are problems that above-mentioned a variety of inconvenience and.
The content of the invention
The purpose of the present invention, be to propose it is a kind of avoid a cubic metre of earth tower crane for slope failure unstability go along with sb. to guard him bracing reinforcement and
Excavation method.
To achieve the above object, technical solution of the invention is：
A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method, it is characterised in that comprises the following steps：
A, line setting, Larsen steel sheet pile accurate positioning, specific size are carried out for Larsen steel sheet pile according to tower crane position
According to specific tower crane model, base position is determined, and need to ensure that basic installation has enough operating surfaces；
B, groove is excavated according to line setting, steel sheet pile construction saddle is installed, steel sheet pile is beaten in advance, according to tower crane buried depth mark
Height, it is determined that construction steel sheet pile length；
C, steel sheet pile is squeezed into；First stage shoveling is carried out, according to 1:2.0 progress slopes are excavated to shaped steel purlin position；Excavation face
Product need to meet to load earthworks requirements in foundation ditch under site operation backacter construction radius；
D, weld purlin, add support, purlin support diagonal brace carries out full weld processing with steel sheet pile welding, and weld seam is full；
E, Larsen steel sheet pile purlin and support are both needed to construction completion, after welding quality is qualified, carries out the basic second stage earthwork and open
Dig, the earthwork in excavation pit, cut the earth for machinery less than bit position, using manual cleaning, after the completion of casting concrete bed course；
F, tower crane installation, reinforcing bar, template construction, casting concrete are carried out；
G, after the completion of foundation construction, after tower crane construction base concrete reaches the 70% of intensity, backfilling of earthwork is carried out, dismounting steel encloses
Purlin, extract Larsen steel sheet pile.
The tower crane of the present invention, which goes along with sb. to guard him bracing reinforcement and excavation method, to enter one using following technical measures
Step is realized.
Foregoing method, wherein the purlin support diagonal brace is 45 degree with steel sheet pile soldering angle.
Foregoing method, excavated wherein the earth excavation " segmentation, should be layered, be symmetrical ", pay attention to periphery in digging process
Engineering pile, the protection of tower crane stake, if special messenger commands, dig and break or by soil body failure by shear to prevent pile tube.
After adopting the above technical scheme, the tower crane of the present invention go along with sb. to guard him bracing reinforcement and excavation method have it is following excellent
Point：
1st, solve tower crane deep pit digging difficulty in soft soil foundation, effectively avoid tower crane and basement in weak soil
Occur earthwork slope failure unstability, extruding, failure by shear periphery tower crane pile foundation or engineering pile phenomenon during base earth excavation；
2nd, construction quality is safe and reliable, efficiently solve tower crane, excavation slope safety problem in the digging process of storehouse；
3rd, the duration is saved, reduces engineering cost.
Brief description of the drawings
Fig. 1 is tower crane, the Larsen steel sheet pile horizontal layout schematic diagram of the embodiment of the present invention；
Fig. 2 is that the tower crane of the embodiment of the present invention goes along with sb. to guard him supporting plane figure；
Fig. 3 is the foundation pit enclosure profile of the embodiment of the present invention；
Fig. 4 is the shaped steel purlin and support connection diagram of the embodiment of the present invention；
Fig. 5 is the A-A sectional views in Fig. 4；
Fig. 6 is the shaped steel purlin and steel sheet pile connection diagram of the embodiment of the present invention；
Fig. 7 is the foundation pit enclosure profile of the embodiment of the present invention and each stage earth excavation floor map；
Fig. 8 is the earth excavation diagrammatic cross-section of the embodiment of the present invention.
In figure：1 Larsen steel sheet pile, 2 underground garage pile foundations, 3 tower cranes, the shaped steel purlin of main building 4,5,6 type steel supports, 7
Foundation ditch slope, 8 reinforcing bar shelf brackets, 9 tower crane pile foundations, 10 support center lines, 11 put more energy into floor, 12 channel-section steel supports, 13 first stage
Earthwork slope in foundation ditch periphery is excavated, unloading, earth excavation in 14 second stage tower crane foundation ditches.
Embodiment
With reference to embodiments and its accompanying drawing illustrates further to the present invention.
Embodiment 1
The tower crane of the present invention goes along with sb. to guard him bracing reinforcement and the tower crane of excavation method goes along with sb. to guard him support and earth excavation construction stream
Journey is as follows：
→ → steel sheet pile inserts and beats → sink and beat steel sheet pile → in advance and opens Larsen steel sheet pile line setting → excavation groove for saddle installation
Dig to shaped steel purlin position → setting purlin, support → foundation ditch periphery earthwork slope is excavated, earth excavation in unloading → foundation ditch →
Tower crane is constructed, and → banketing and remove purlin → pulls out steel sheet pile.
The tower crane of the present invention goes along with sb. to guard him bracing reinforcement and excavation method, comprises the following steps：
A, line setting, Larsen steel sheet pile accurate positioning, specific size are carried out for Larsen steel sheet pile according to tower crane position
According to specific tower crane model, base position is determined, and need to ensure that basic installation has enough operating surfaces；Fig. 1 is the present invention
Tower crane, the Larsen steel sheet pile horizontal layout schematic diagram of embodiment.
B, groove is excavated according to line setting, steel sheet pile construction saddle is installed, steel sheet pile is beaten in advance, according to tower crane buried depth
Absolute altitude, it is determined that construction steel sheet pile length；Fig. 2 is that the tower crane of the embodiment of the present invention goes along with sb. to guard him supporting plane figure.
C, steel sheet pile is squeezed into；First stage shoveling is carried out, according to 1:2.0 progress slopes are excavated to shaped steel purlin position；Open
Digging area need to meet to load earthworks requirements in foundation ditch under site operation backacter construction radius；Fig. 3 is the embodiment of the present invention
Foundation pit enclosure profile.
D, weld purlin, add support, purlin support diagonal brace carries out full weld processing with steel sheet pile welding, and weld seam is full；Institute
It is 45 degree that purlin support diagonal brace, which is stated, with steel sheet pile soldering angle.Fig. 4 is that the shaped steel purlin of the embodiment of the present invention and support connection are shown
It is intended to, Fig. 5 is the A-A sectional views in Fig. 4.
E, Larsen steel sheet pile purlin and support are both needed to construction completion, after welding quality is qualified, carry out basic second stage soil
Side is excavated, the earthwork in excavation pit, is cut the earth for machinery less than bit position, using manual cleaning, after the completion of casting concrete pad
Layer；Fig. 6 is the shaped steel purlin and steel sheet pile connection diagram of the embodiment of the present invention.
F, tower crane installation, reinforcing bar, template construction, casting concrete are carried out；
G, after the completion of foundation construction, after tower crane construction base concrete reaches the 70% of intensity, backfilling of earthwork is carried out, dismounting steel encloses
Purlin, extract Larsen steel sheet pile.The earth excavation " segmentation, should be layered, be symmetrical " and excavate, and periphery engineering is paid attention in digging process
Stake, the protection of tower crane stake, if special messenger commands, dig and break or by soil body failure by shear to prevent pile tube.Fig. 7 is the base of the embodiment of the present invention
Pit enclosure profile and each stage earth excavation floor map, Fig. 8 are the earth excavation diagrammatic cross-section of the embodiment of the present invention.
The present invention has substantive distinguishing features and significant technological progress, and tower crane of the invention is gone along with sb. to guard him bracing reinforcement and opened
Excavation method, which is gone along with sb. to guard him from tower crane, earth excavation is constructed starts with terms of two, efficiently solve tower crane, storehouse digging process
Middle excavation slope safety problem, while ensure that project smoothly completion and the side of taking part in building of each factory interests.
The tower crane of the present invention goes along with sb. to guard him bracing reinforcement and excavation method in Shanghai Sheshan, Songjiang commercial residential buildings projects
Middle utilization, significant effect, obtain exploiting entity, supervisor and construction unit's abundant affirmation.
Above example is used for illustrative purposes only, rather than limitation of the present invention, the technology people about technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, it is all equivalent
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (3)
1. a kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method, it is characterised in that comprises the following steps：
A, line setting, Larsen steel sheet pile accurate positioning, specific size are carried out for Larsen steel sheet pile according to tower crane position
According to specific tower crane model, base position is determined, and need to ensure that basic installation has enough operating surfaces；
B, groove is excavated according to line setting, steel sheet pile construction saddle is installed, steel sheet pile is beaten in advance, according to tower crane buried depth mark
Height, it is determined that construction steel sheet pile length；
C, steel sheet pile is squeezed into；First stage shoveling is carried out, according to 1:2.0 progress slopes are excavated to shaped steel purlin position；Excavation face
Product need to meet to load earthworks requirements in foundation ditch under site operation backacter construction radius；
D, weld purlin, add support, purlin support diagonal brace carries out full weld processing with steel sheet pile welding, and weld seam is full；
E, Larsen steel sheet pile purlin and support are both needed to construction completion, after welding quality is qualified, carries out the basic second stage earthwork and open
Dig, the earthwork in excavation pit, cut the earth for machinery less than bit position, using manual cleaning, after the completion of casting concrete bed course；
F, tower crane installation, reinforcing bar, template construction, casting concrete are carried out；
G, after the completion of foundation construction, after tower crane construction base concrete reaches the 70% of intensity, backfilling of earthwork is carried out, dismounting steel encloses
Purlin, extract Larsen steel sheet pile.
2. tower crane as claimed in claim 1 goes along with sb. to guard him bracing reinforcement and excavation method, it is characterised in that the purlin support
Diagonal brace is 45 degree with steel sheet pile soldering angle.
3. tower crane as claimed in claim 1 goes along with sb. to guard him bracing reinforcement and excavation method, it is characterised in that the earth excavation
" segmentation, it should be layered, be symmetrical " and excavate, periphery engineering pile, the protection of tower crane stake are paid attention in digging process, if special messenger commands, to prevent
Pile tube, which is dug, to break or by soil body failure by shear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413617.5A CN107503354A (en) | 2016-06-14 | 2016-06-14 | A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413617.5A CN107503354A (en) | 2016-06-14 | 2016-06-14 | A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503354A true CN107503354A (en) | 2017-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610413617.5A Pending CN107503354A (en) | 2016-06-14 | 2016-06-14 | A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method |
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| CN (1) | CN107503354A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687355A (en) * | 2022-04-14 | 2022-07-01 | 北京京水建设集团有限公司 | Ship lock foundation pit excavation and supporting structure and construction method thereof |
| CN115233701A (en) * | 2022-08-31 | 2022-10-25 | 中国十七冶集团有限公司 | Foundation pit supporting device under coastal complex geological conditions and construction method |
| CN115787705A (en) * | 2022-12-27 | 2023-03-14 | 广州市第三市政工程有限公司 | Construction method for pre-arranging tower crane foundation in foundation pit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704504A (en) * | 2012-06-26 | 2012-10-03 | 南通华新建工集团有限公司 | Method for constructing tower crane foundation |
| CN104895079A (en) * | 2015-06-11 | 2015-09-09 | 辽宁紫竹桩基础工程股份有限公司 | Reverse construction method for piling steel sheet piles |
| CN104929133A (en) * | 2015-06-09 | 2015-09-23 | 沈阳市政集团有限公司 | Deep foundation pit Larsen steel sheet pile bottom sloping support construction method |
-
2016
- 2016-06-14 CN CN201610413617.5A patent/CN107503354A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704504A (en) * | 2012-06-26 | 2012-10-03 | 南通华新建工集团有限公司 | Method for constructing tower crane foundation |
| CN104929133A (en) * | 2015-06-09 | 2015-09-23 | 沈阳市政集团有限公司 | Deep foundation pit Larsen steel sheet pile bottom sloping support construction method |
| CN104895079A (en) * | 2015-06-11 | 2015-09-09 | 辽宁紫竹桩基础工程股份有限公司 | Reverse construction method for piling steel sheet piles |
Non-Patent Citations (1)
| Title |
|---|
| 宁英杰等: "拉森钢板桩在承台深基坑中的应用", 《交通世界》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687355A (en) * | 2022-04-14 | 2022-07-01 | 北京京水建设集团有限公司 | Ship lock foundation pit excavation and supporting structure and construction method thereof |
| CN115233701A (en) * | 2022-08-31 | 2022-10-25 | 中国十七冶集团有限公司 | Foundation pit supporting device under coastal complex geological conditions and construction method |
| CN115787705A (en) * | 2022-12-27 | 2023-03-14 | 广州市第三市政工程有限公司 | Construction method for pre-arranging tower crane foundation in foundation pit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |