CN108517874A - A kind of construction method of foundation pit enclosure - Google Patents
A kind of construction method of foundation pit enclosure Download PDFInfo
- Publication number
- CN108517874A CN108517874A CN201810318850.4A CN201810318850A CN108517874A CN 108517874 A CN108517874 A CN 108517874A CN 201810318850 A CN201810318850 A CN 201810318850A CN 108517874 A CN108517874 A CN 108517874A
- Authority
- CN
- China
- Prior art keywords
- wall
- construction
- foundation pit
- stake holes
- diaphragm wall
- 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.)
- Pending
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
Abstract
The invention discloses a kind of construction methods of foundation pit enclosure, include the following steps：The first step, is arranged stake position on the inside of the diaphragm wall for drafting construction and drilling forms stake holes, and stake holes inner wall sticks multilayer glass fiber reticular cloth, concrete is then poured into a mould in stake holes, and be mutually twisted molding pile body to form barricade；Second step, diaphragm wall is performed on the outside of diaphragm wall leads wall；Third walks, and according to design requirement, slot section framing is carried out trenching construction, until catching rock stratum with hydraulic grab bucket grooving machine.The construction method construction cost of the foundation pit enclosure is low, securely and reliably.
Description
Technical field：
The present invention relates to building field, the construction method of specifically a kind of foundation pit enclosure.
Background technology：
The situation that geological condition complexity is often met in Urban Building Construction, as stratum is respectively from top to bottom：It is miscellaneous to fill out
It is soil, plain fill, old city miscellaneous fill, sandy silt, dauk, clay (swelled ground), completely decomposed calcareous shale, severely-weathered calcareous
Shale, middle weathering and gentle breeze calcareous shale, there is also solution cavities for part.
This kind of soil layer influences structure construction big, it is necessary to use suitable method, the engineering measures such as strengthening supporting, waterproof.
Swell deformation of expansive soil encountered with water, dehydration shrinkage easily cause side slope craze and transfiguration to excavation of foundation pit and destroy, generated to protection works such as reinforcings
Squeeze destruction etc.；Decomposed rock；Formation composition is uneven, after construction disturbance or seeps water, intensity is substantially reduced, and is unfavorable for foundation pit country rock
Stablize.There is uncertainty in the size of solution cavity, the concrete poured when such as taking no action to going along with sb. to guard him construction will cause very big wave
Take, moreover, current foundation pit foundation pit enclosure during practice of construction is in a more weak state, the day deformation gone along with sb. to guard him
It is larger, the more difficult assurance of control to foundation pit enclosure structure deformation, and then generate security risk.
Invention content：
The technical problem to be solved by the invention is to provide a kind of effective stable foundation pit structures, are allowed to be unlikely to deform, and drop
The construction method of the foundation pit enclosure of low construction cost.
Technical solution of the invention is to provide a kind of construction method of foundation pit enclosure, includes the following steps：
The first step, is arranged stake position on the inside of the diaphragm wall for drafting construction and drilling forms stake holes, and stake holes inner wall sticks multilayer
Then glass fiber reticular cloth pours into a mould concrete in stake holes, and is mutually twisted molding pile body to form barricade；
Second step, diaphragm wall is performed on the outside of diaphragm wall leads wall,；
Third walks, and according to design requirement, slot section framing is carried out trenching construction, catching rock stratum with hydraulic grab bucket grooving machine is
Only；
4th step carries out rotary digging to rock stratum and is crushed, drill out boring mud, until design is deep using rotary drilling rig and percussive drill
Degree；
5th step picks up rock disintegrating slag, is inserted into shaped steel positioning as required in slot section, and pour into a mould coagulation in shaped steel lower part
Soil is fixed, and then prefabricated ground walls is guided to hang in grooving；
6th step, over the ground wall spliced, form width ground wall, and steel plate, steel plate are bonded in the stitching portion for being adjacent to wall
Both ends are fastened on expandable nail on ground wall respectively, are then transferred to lower width construction, until the completion of entire foundation pit diaphragm wall, and to pre-
Secondary grouting in the hole of system ground wall, makes shaped steel and prefabricated ground walls be integrated.
The beneficial effects of the invention are as follows：Difficulty of construction is reduced with prefabricated ground walls, improves construction quality, shortens work
When, cost has been saved, working security is increased, meanwhile, mechanical modification improves mixing pile performance, and reduces expense throwing
Enter.
Specific implementation mode：
The invention will be further described With reference to embodiment：
A kind of construction method of foundation pit enclosure, includes the following steps：
The first step, is arranged stake position on the inside of the diaphragm wall for drafting construction and drilling forms stake holes, and stake holes inner wall sticks multilayer
Then glass fiber reticular cloth pours into a mould concrete in stake holes, and is mutually twisted molding pile body to form barricade；
Second step, diaphragm wall is performed on the outside of diaphragm wall leads wall,；
Third walks, and according to design requirement, slot section framing is carried out trenching construction, catching rock stratum with hydraulic grab bucket grooving machine is
Only；
4th step carries out rotary digging to rock stratum and is crushed, drill out boring mud, until design is deep using rotary drilling rig and percussive drill
Degree；
5th step picks up rock disintegrating slag, is inserted into shaped steel positioning as required in slot section, and pour into a mould coagulation in shaped steel lower part
Soil is fixed, and then prefabricated ground walls is guided to hang in grooving；
6th step, over the ground wall spliced, form width ground wall, and steel plate, steel plate are bonded in the stitching portion for being adjacent to wall
Both ends are fastened on expandable nail on ground wall respectively, are then transferred to lower width construction, until the completion of entire foundation pit diaphragm wall, and to pre-
Secondary grouting in the hole of system ground wall, makes shaped steel and prefabricated ground walls be integrated.
Claims (1)
1. a kind of construction method of foundation pit enclosure, which is characterized in that include the following steps：
The first step, is arranged stake position on the inside of the diaphragm wall for drafting construction and drilling forms stake holes, and stake holes inner wall sticks multilayer glass
Then grid cloth pours into a mould concrete in stake holes, and is mutually twisted molding pile body to form barricade；
Second step, diaphragm wall is performed on the outside of diaphragm wall leads wall；
Third walks, and according to design requirement, slot section framing is carried out trenching construction, until catching rock stratum with hydraulic grab bucket grooving machine；
4th step is carried out rotary digging to rock stratum and is crushed, boring mud is drilled out, until projected depth using rotary drilling rig and percussive drill；
5th step picks up rock disintegrating slag, be inserted into as required in slot section shaped steel positioning, and shaped steel lower part pour into a mould concrete into
Row is fixed, and then prefabricated ground walls is guided to hang in grooving；
6th step, over the ground wall spliced, form width ground wall, and steel plate, steel plate both ends are bonded in the stitching portion for being adjacent to wall
It is fastened on ground wall with expandable nail respectively, is then transferred to lower width construction, until the completion of entire foundation pit diaphragm wall, and to prefabricated
Secondary grouting in the hole of wall makes shaped steel and prefabricated ground walls be integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318850.4A CN108517874A (en) | 2018-04-11 | 2018-04-11 | A kind of construction method of foundation pit enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318850.4A CN108517874A (en) | 2018-04-11 | 2018-04-11 | A kind of construction method of foundation pit enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108517874A true CN108517874A (en) | 2018-09-11 |
Family
ID=63431990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810318850.4A Pending CN108517874A (en) | 2018-04-11 | 2018-04-11 | A kind of construction method of foundation pit enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108517874A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194148U (en) * | 2011-07-15 | 2012-04-18 | 深圳市鸿荣轩建设工程有限公司 | Waterproof curtain |
| CN104963346A (en) * | 2015-06-30 | 2015-10-07 | 中国二十冶集团有限公司 | Support construction method for deep foundation pit in complex geological condition |
| CN105442614A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for foundation pit support |
| CN105586973A (en) * | 2015-01-16 | 2016-05-18 | 刘献刚 | Composite snap-in pile retaining wall construction method and a composite snap-in pile retaining wall structure |
| CN107313433A (en) * | 2017-08-15 | 2017-11-03 | 江西基业科技有限公司 | A kind of deep basal pit underground space structure and its construction method |
-
2018
- 2018-04-11 CN CN201810318850.4A patent/CN108517874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194148U (en) * | 2011-07-15 | 2012-04-18 | 深圳市鸿荣轩建设工程有限公司 | Waterproof curtain |
| CN105586973A (en) * | 2015-01-16 | 2016-05-18 | 刘献刚 | Composite snap-in pile retaining wall construction method and a composite snap-in pile retaining wall structure |
| CN104963346A (en) * | 2015-06-30 | 2015-10-07 | 中国二十冶集团有限公司 | Support construction method for deep foundation pit in complex geological condition |
| CN105442614A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for foundation pit support |
| CN107313433A (en) * | 2017-08-15 | 2017-11-03 | 江西基业科技有限公司 | A kind of deep basal pit underground space structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 314500 133, room 4, 288 development avenue, Tongxiang Economic Development Zone, Tongxiang, Jiaxing, Zhejiang Applicant after: Tongyan design (Zhejiang) Co., Ltd Address before: 314500 133, room 4, 288 development avenue, Tongxiang Economic Development Zone, Tongxiang, Jiaxing, Zhejiang Applicant before: ZHEJIANG TONGYAN BUILDING PLANNING DESIGN Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180911 |