CN104631473A - Axial force exerting construction method for automatic servo steel brace system - Google Patents
Axial force exerting construction method for automatic servo steel brace system Download PDFInfo
- Publication number
- CN104631473A CN104631473A CN201510024921.6A CN201510024921A CN104631473A CN 104631473 A CN104631473 A CN 104631473A CN 201510024921 A CN201510024921 A CN 201510024921A CN 104631473 A CN104631473 A CN 104631473A
- Authority
- CN
- China
- Prior art keywords
- axial force
- automatic servo
- bracing members
- applies
- axle power
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to an axial force exerting construction method for an automatic servo steel supporting system. The method comprises the following steps: firstly, pre axial force is exerted on a steel brace; secondly, initial axial force is exerted on the steel brace; thirdly, complex axial force is exerted on the steel brace. Compared with a traditional axial force exerting mode of an underground automatic servo system steel brace, the axial force exerting of the traditional automatic servo system steel brace is one-time exerting. The characteristic that the axial force of the automatic servo system steel brace can be changed at anytime is utilized, according to different construction conditions, different cutting depth, and different formation of the supporting system, the axial force is exerted appropriately and gradually, so that the characteristic and the advantage of the automatic servo system steel brace are maximized, and therefore, the safety of ground walls and peripheral protective buildings can be controlled.
Description
Technical field
The method that the axle power that the present invention relates to a kind of automatic servo steel supporting system applies; particularly for basal perimeter exist subway, old residential block or protective building a when, with the use of automatic servo system bracing members axis power apply construction method.
Background technology
Along with the development in city, the exploitation of the underground space are more and more subject to people's attention.In underground engineering construction field, excavation of foundation pit area is increasing, and cutting depth is more and more darker, and the shape of foundation ditch becomes increasingly complex.But the construction region periphery of engineering becomes increasingly complex, protective building gets more and more, and comprises subway, old residential block, historical building etc.This makes to adopt traditional bracing members method to be difficult to ensure to meet the needs of engineering, so adopt the bracing members of automatic servo system widely.Automatic servo system bracing members has adjustable support axle power at any time, carries out the features such as axle force compensating in real time.Can the method that applies of the axle power of automatic servo system bracing members that nowadays general job site adopts, only apply an axial force of the supports, one-shot forming, this kind applies methods not very science.But this automatic servo system bracing members axle power applying mode is in order to automatic servo system bracing members better applies to construction, makes full use of the feature of automatic servo system, according to operating modes such as the soil excavation degree of depth, construction nodes.Axle power constant for one dirt is applied more refinement, and successively, block-by-block evenly applies, the applying mode that the axle power changing blindness settles at one go, thus the more safe stability guaranteeing ground wall, protection perimeter security.
Summary of the invention
The present invention will provide a kind of axle power of automatic servo steel supporting system to apply construction method; the method can promote the effect of automatic servo system bracing members greatly; and realize foundation ditch ground wall, and even the strong protection of surrounding enviroment, there is higher economic implications and social effect.
For achieving the above object, technical scheme of the present invention is:
The axle power of automatic servo steel supporting system applies a construction method, it is characterized in that, comprising:
1) bracing members brace pre axial force applies
Automatic servo system bracing members after part installation, the one section of fender body and before not forming whole support system, carry out the applying supporting brace pre axial force of often constructing;
2) bracing members primitive axis power applies
Automatic servo system bracing members, after whole section of retaining design installation, carries out the applying of primitive axis power;
3) the axle power that is added with of bracing members applies
After foundation ditch one bracing members is formed, under dig to appointment absolute altitude, until lower one bracing members is installed when being formed, carry out the axle power that the is added with applying of upper bracing members together; And be added with axle power apply size from lower one support system do not formed up to formation after progressively reduce.
The invention has the beneficial effects as follows:
The present invention's difference and traditional bracing members axle power apply mode (only once apply, and axle power application time node applying for during erection).Apply mode according to the corresponding completed bracing members system axle power of different working conditions that simulation foundation ditch excavates stage by stage, focus on the adjustment opportunity in bracing members axle power process, method of adjustment.By perfect, detailed axle power numerical value and application time node, the safety of neighboring buildings and space enclosing structure can be guaranteed.
The present invention contrasts other traditional axle power and applies mode, and axle power applying advantage is as follows stage by stage:
1. carry out the applying of axle power according to different construction operating modes, more science in construction.
2. the characteristic advantage of automatic servo system bracing members can be maximized, the feature making full use of its adjustable nodal axisn power realizes axle power stage by stage and applies.
Accompanying drawing explanation
Fig. 1 is the arrangement schematic diagram of pre-installation automatic servo steel supporting system;
Fig. 2 is first automatic servo bracing members working drawing;
Fig. 3 is second automatic servo bracing members working drawing;
Fig. 4 is the 3rd road automatic servo bracing members working drawing;
Fig. 5 is that second axial force of the supports applying primitive axis power automatic servo steel supporting system forms an overall schematic;
Fig. 6 is that first and second road axial force of the supports applies to be added with axle power automatic servo steel supporting system and is excavated to the 3rd road and supports absolute altitude, carries out the 3rd road brace pre axial force and applies schematic diagram;
Fig. 7 is that second axial force of the supports applying primitive axis power automatic servo steel supporting system forms an overall schematic;
Fig. 8 is that first, second and third road axial force of the supports applies to be added with the installation of axle power automatic servo steel supporting system and is excavated to hole end schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
As shown in Figures 1 to 5, the axle power of automatic servo steel supporting system of the present invention applies construction method, comprising:
1) the axle power of automatic servo steel supporting system applies
Automatic servo steel supporting system is divided into three sections of axle power to apply, and first bracing members 3 after mounting 2 brace pre axial forces applies 1, and after whole support system is formed, primitive axis power applies 6, is added with axle power and applies 5 after waiting for next layer soil body of excavation.
Specific construction flow process is:
(1) first bracing members 3 axle power applying-brace pre axial force applies 1(Fig. 2), automatic servo steel supporting system, in installation process, is in a certain fender body.
(2) first bracing members 3 axle power applying-primitive axis power applies 6(Fig. 3), automatic servo steel supporting system is in installation, and this road bracing members forms an entirety.
(3) first bracing members 3 axle power applies-is added with axle power and applies 5(Fig. 4), the installation of automatic servo steel supporting system, and be excavated to second support absolute altitude, carry out the applying of second brace pre axial force.
(4) second bracing members 4 axle power applying-primitive axis power applies 6(Fig. 5), automatic servo steel supporting system is in installation, and this road bracing members forms an entirety.
(5) first and second road bracing members 3,4 axle power applies-is added with axle power and applies 5(Fig. 6), the installation of above-mentioned automatic servo steel supporting system, and be excavated to the 3rd road support absolute altitude, carry out the 3rd road brace pre axial force and apply 1.
(6) second bracing members 4 axle power applying-primitive axis power applies 6(Fig. 7), automatic servo steel supporting system is in installation, and this road bracing members forms an entirety.
(7) first, second and third road bracing members 3,4,7 axle power applies-is added with axle power and applies 5(Fig. 8), the installation of whole automatic servo steel supporting system, and be excavated to the end, hole.
(8) finally complete underplate concrete to build, upwards remove automatic servo steel supporting system.
2) the axle power of removing automatic servo steel supporting system applies
The dismounting of automatic servo steel supporting system, is equal to support and installs.Demolishing process axle power reduces to apply process with reference to above-mentioned axle power.Progressively carry out the reduction of axle power, final dismounting automatic servo steel supporting system.
Claims (1)
1. the axle power of automatic servo steel supporting system applies a construction method, it is characterized in that, comprising:
1) bracing members brace pre axial force applies
Automatic servo system bracing members after part installation, the one section of fender body and before not forming whole support system, carry out the applying supporting brace pre axial force of often constructing;
2) bracing members primitive axis power applies
Automatic servo system bracing members, after whole section of retaining design installation, carries out the applying of primitive axis power;
3) the axle power that is added with of bracing members applies
After foundation ditch one bracing members is formed, under dig to appointment absolute altitude, until lower one bracing members is installed when being formed, carry out the axle power that the is added with applying of upper bracing members together; And be added with axle power apply size from lower one support system do not formed up to formation after progressively reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024921.6A CN104631473B (en) | 2015-01-19 | 2015-01-19 | The axle power of automatic servo steel supporting system applies construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024921.6A CN104631473B (en) | 2015-01-19 | 2015-01-19 | The axle power of automatic servo steel supporting system applies construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104631473A true CN104631473A (en) | 2015-05-20 |
| CN104631473B CN104631473B (en) | 2017-03-29 |
Family
ID=53210671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510024921.6A Active CN104631473B (en) | 2015-01-19 | 2015-01-19 | The axle power of automatic servo steel supporting system applies construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104631473B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853577A (en) * | 2018-12-25 | 2019-06-07 | 青岛理工大学 | A kind of deep basal pit bracing members On-line Control application prestressing method |
| CN111287191A (en) * | 2020-03-02 | 2020-06-16 | 中铁十六局集团北京轨道交通工程建设有限公司 | Soft soil foundation pit excavation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359331Y (en) * | 1999-02-03 | 2000-01-19 | 上海高仕新技术工程咨询合作公司 | Steel repported added prestressed device |
| KR20020076531A (en) * | 2001-03-29 | 2002-10-11 | 김상수 | Afforestation Retaining-Wall laying Concrete-block |
| CN101126240A (en) * | 2006-08-16 | 2008-02-20 | 上海电力设计院有限公司 | Method for controlling foundation pit deformation by using time difference effect in foundation pit excavating process |
| CN101294389A (en) * | 2008-02-22 | 2008-10-29 | 中建国际建设有限公司 | Steel shotcrete support internal force self-compensation, displacement control system and control method |
| CN201567581U (en) * | 2009-12-31 | 2010-09-01 | 上海市隧道工程轨道交通设计研究院 | Pit enclosure structure for performing shield traversing construction at lower part |
-
2015
- 2015-01-19 CN CN201510024921.6A patent/CN104631473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359331Y (en) * | 1999-02-03 | 2000-01-19 | 上海高仕新技术工程咨询合作公司 | Steel repported added prestressed device |
| KR20020076531A (en) * | 2001-03-29 | 2002-10-11 | 김상수 | Afforestation Retaining-Wall laying Concrete-block |
| CN101126240A (en) * | 2006-08-16 | 2008-02-20 | 上海电力设计院有限公司 | Method for controlling foundation pit deformation by using time difference effect in foundation pit excavating process |
| CN101294389A (en) * | 2008-02-22 | 2008-10-29 | 中建国际建设有限公司 | Steel shotcrete support internal force self-compensation, displacement control system and control method |
| CN201567581U (en) * | 2009-12-31 | 2010-09-01 | 上海市隧道工程轨道交通设计研究院 | Pit enclosure structure for performing shield traversing construction at lower part |
Non-Patent Citations (1)
| Title |
|---|
| 孙卿: "紧邻地铁区间隧道深基坑工程的设计与施工", 《城市建设理论研究（电子版）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853577A (en) * | 2018-12-25 | 2019-06-07 | 青岛理工大学 | A kind of deep basal pit bracing members On-line Control application prestressing method |
| CN109853577B (en) * | 2018-12-25 | 2019-10-25 | 青岛理工大学 | A kind of deep basal pit bracing members On-line Control application prestressing method |
| CN111287191A (en) * | 2020-03-02 | 2020-06-16 | 中铁十六局集团北京轨道交通工程建设有限公司 | Soft soil foundation pit excavation method |
| CN111287191B (en) * | 2020-03-02 | 2021-05-04 | 中铁十六局集团北京轨道交通工程建设有限公司 | Soft soil foundation pit excavation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104631473B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106522241B (en) | The method for supporting deep foundation pit of the high basement structure of super large layer | |
| CN110485473A (en) | Rectangle active well and its construction method can be recycled in a kind of assembled that presetting detachable door opening | |
| CN103981896B (en) | The seamless link construction method of a kind of outer wall of basement and fender post | |
| CN107587516B (en) | A kind of efficient sealing resistance sand precipitation composite system of Follow-up type and its construction method | |
| CN106437798B (en) | A kind of preprocess method of the anchor cable group across shield driving section | |
| CN103485790A (en) | Shallow tunneling method for pipe-proof-supporting structure combined system | |
| CN103510520A (en) | Sectionalized construction method of deep and large foundation pit | |
| CN104563128A (en) | Synchronous excavation supporting system for deep and large asymmetric pit in soft soil area and implementation method of supporting system | |
| CN104060617B (en) | The prefabricated assembled inner support system of foundation pit support system and construction method | |
| CN108547639A (en) | Tunnel closes on the advanced same more conduit delamination pour slurry construction methods in hole of existing buildings | |
| CN103742157A (en) | Method of newly building underground space under ground by pipe jacking method | |
| CN110485468A (en) | A kind of water rich strata presets the permanent round-seal reservoir and its construction method of push pipe door opening | |
| CN110485467A (en) | It is a kind of to preset the recyclable rectangle active well of detachable door opening, the sliding rear assembled by wall and its construction method | |
| CN107558478A (en) | Foundation ditch and construction method of the support of Fei Shou roads with dynamic stress regulatory function | |
| CN103410152A (en) | Construction method for long, narrow and deep foundation pit soil excavation | |
| CN105544603A (en) | Construction method for underground pipeline reinforcement | |
| CN206554091U (en) | The foundation ditch temporary support structures of anti-Nearby Structure foundation deformation | |
| CN104631473A (en) | Axial force exerting construction method for automatic servo steel brace system | |
| CN107313430A (en) | The deep big foundation pit subregion construction method of three face Nearby Structures | |
| EP2957676A1 (en) | Telescopic type riser system equipment for digging round pits and its utilization method | |
| CN103850257A (en) | Digging slope body structure used for rock side slope and digging construction method of digging slope body structure | |
| CN110656942B (en) | Tunnel surrounding rock deformation control method applied to granite altered zone under seepage condition | |
| CN110820803A (en) | Open excavation construction method for transverse connection channel of shield tunnel | |
| CN103437360B (en) | A kind of not support replacement construction method in deep-foundation pit engineering | |
| CN102787611A (en) | Precipitation method for excavation of foundation pit at collapsible loess region |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |