CN102021871B - Foundation treatment method for temporary construction subgrade on dredge fill soft foundation site - Google Patents
Foundation treatment method for temporary construction subgrade on dredge fill soft foundation site Download PDFInfo
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- CN102021871B CN102021871B CN 200910195707 CN200910195707A CN102021871B CN 102021871 B CN102021871 B CN 102021871B CN 200910195707 CN200910195707 CN 200910195707 CN 200910195707 A CN200910195707 A CN 200910195707A CN 102021871 B CN102021871 B CN 102021871B
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Abstract
The invention relates to a foundation treatment method for temporary construction subgrade at the dredge fill soft foundation site, which is realized by the following steps: adopting common standard bamboo boards or rafts; continuously paving the bamboo boards or rafts on the dredge fill according to the planned construction route; and determining the length of the paved standard bamboo boards or rafts according to the walking route and expanding the planned route toward the two sides by 0.8-1.2m based on the width of the planned route to obtain the width of the bamboo boards or rafts, wherein the bamboo boards or rafts are in lap joint with each other and are connected by binding with steel wires to ensure the effectiveness of lap joint and form a whole raft. The method has the beneficial effect of solving the walking problem of the constructors and various construction machines at the dredge fill soft foundation site.
Description
Technical field
The present invention relates to a kind of method for processing foundation, relate in particular to the method for processing foundation of interim construction roadbed on a kind of barged-in fill.
Background technology
China's Coastal Areas adopts the growth momentum of carrying out engineering construction of reclaiming fields from the sea very swift and violent.The mode of reclaiming fields from the sea mainly is to banket with what the hydraulic fill silt particle formed, is commonly called as barged-in fill.It is the very poor weak soil of a kind of engineering property, its particular structural property and full water-based, and general free-hand pedestrian almost also can't get on, and must just can be applicable to the foundation condition of construction of structures through artificial treatment.Extensive whole audience ground is carried out the ground processing or needs regional area to carry out the concrete pipe base construction; Method is varied; But no matter adopt any processing method; At first must solve the construction walking problem of constructor and all kinds of large-scale construction equipments, this just need carry out planning and designing to construction access road zone (being the big machinery track route sometimes).
Because the provisional and simplification of construction access road, so the design that its ground is handled is not often paid attention to by people.Mainly contain two kinds of ways at present:
The first, with the permanent road of site planning a part as interim construction access road.Accomplish roadbase earlier by the pavement design requirement of permanent road and handle, road surfacing is construction again before whole engineering construction is near completion.
The second, handle and the pile foundation construction flow process by the place ground, plan various construction access roads.The construction roadbed adopts lays bamboo chip plate (raft) or simple and easy wooden splint earlier; After adopt or fall (row) water or shake and various measures such as dash and carry out preliminary treatment, treat that foundation soil has certain intensity after, lay bedding and padding such as ballast aggregate, rubble; If intensity improves enough big, then do not re-lay bedding and padding.
Two kinds of ways of existing engineering all exist certain defective.
First method has in fact just been utilized the basic unit of permanent road; It is used as temporary road; Equal during whole construction, to have done the preliminary treatment that rolls repeatedly, can reduce roadbed subsidence in the future, but problem is before doing basic unit, to construct to road; Need do preliminary treatment to foundation soil equally, otherwise be difficult to the assurance personnel and machinery is walked in the above.In addition, interim builder's road not necessarily covers the track route of big machinery.
Second method is actually the conventional method of comparison of present employing.Though satisfied the construction walking problem of personnel with general small-sized machine turnover place; But it still can not satisfy the walking problem of big machinery; Simultaneously, the various ground preliminary treatment of carrying out improve limited often to intensity, and the time that need expend than length just can reach required intensity; Sometimes a large amount of bedding and padding of also having to lay, time-consuming expense material is required great effort again.
Summary of the invention
The technical issues that need to address of the present invention have provided the method for processing foundation of the interim construction roadbed on a kind of barged-in fill soft foundation field, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes through following steps:
Adopt common standard bamboo chip plate or raft;
By the construction access road of planning, continuous laying bamboo chip plate or raft on barged-in fill should overlap each other between bamboo chip plate or the raft, and connect with steel wire lashing, guarantee the validity of overlap joint, form the integrated piece raft;
The standard bamboo chip plate of continuous laying or the length of raft confirms according to the track route needs, and width is the programme path width and extends out out 0.8-1.2 rice to both sides.
Compared with prior art, the invention has the beneficial effects as follows: solved walking problem at weak ground constructor of barged-in fill and all kinds of construction machineries.
Description of drawings
Fig. 1 adopts structural representation of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Visible by Fig. 1: the present invention realizes through following steps:
1, adopts common standard bamboo chip plate or raft;
2, by the construction access road of planning, continuous laying bamboo chip plate or raft 2 should overlap each other between bamboo chip plate or the raft, and connect with steel wire lashing on barged-in fill 1, guarantee the validity of overlap joint, form the integrated piece raft;
3, the length of the standard bamboo chip plate of continuous laying or raft is confirmed according to the track route needs, and width is the programme path width and extends out out 0.8-1.2 rice to both sides;
In step 2: for the large-scale construction equipment track route; Lay bamboo chip plate or raft earlier; Lay thick ballast aggregate of 280-320mm or piece stone 3 then in the above, on ballast aggregate or piece stone, lay the thick rubble 4 of 70-100mm, on rubble, lay the thick plain soil 5 of 300-500mm.
Key of the present invention is that the bamboo chip plate (raft) of continuous laying has played the effect of reinforcement body in soft foundation; Can improve the mechanical characteristic of soil greatly; The level that has improved globality native in the reinforcement body region scope and soil is to continuity; The soil body after making the point load on the face of land through reinforcement is converted into evenly distributed load and reaches lower floor, has reduced the subsidiary stress of foundation soil.
The present invention adopts a kind of very simple and easy and effective continuous laying bamboo chip plate (raft) and optionally overlays the method for bedding and padding such as ballast aggregate, piece stone and rubble, has solved in weak of the barged-in fill walking problem of constructor and all kinds of large-scale construction equipments on the ground.The key of its know-why is that the bamboo chip plate (raft) of continuous and lapped layup has played the effect of reinforcement body in soft foundation; Can improve the mechanical characteristic of soil greatly; The level that has improved globality native in the reinforcement body region scope and soil is to continuity; The soil body after making the point load on the face of land through reinforcement is converted into evenly distributed load and reaches lower floor, has reduced the subsidiary stress of foundation soil.Its principle is similar to the effect of geotextiles; But it is high to have overcome the geotextiles cost; The construction trouble; Do not have rigidity and a shortcoming of meeting the easy broken invalids of sharp comer such as ballast aggregate, piece stone; Made full use of the firm and high characteristics of tensile strength of the gentle middle band of bamboo chip plate (raft), very suitable as interim construction construction timber for earth-work.
Claims (1)
1. the method for processing foundation of the interim construction roadbed on the barged-in fill soft foundation field, realize through following steps:
(1), adopts common standard bamboo chip plate or raft;
(2), by the construction access road of planning, continuous laying bamboo chip plate or raft on barged-in fill should overlap each other between bamboo chip plate or the raft, and connect with steel wire lashing, guarantee the validity of overlap joint, form the integrated piece raft;
(3), the length of the standard bamboo chip plate of continuous laying or raft confirms according to the track route needs, width is the programme path width and extends out out 0.8-1.2 rice to both sides; Wherein in step (2): for the large-scale construction equipment track route; Lay bamboo chip plate or raft earlier; Lay thick ballast aggregate of 280-320mm or piece stone then in the above, on ballast aggregate or piece stone, lay the thick rubble of 70-100mm, on rubble, lay the thick plain soil of 300-500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195707 CN102021871B (en) | 2009-09-15 | 2009-09-15 | Foundation treatment method for temporary construction subgrade on dredge fill soft foundation site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195707 CN102021871B (en) | 2009-09-15 | 2009-09-15 | Foundation treatment method for temporary construction subgrade on dredge fill soft foundation site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102021871A CN102021871A (en) | 2011-04-20 |
| CN102021871B true CN102021871B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910195707 Active CN102021871B (en) | 2009-09-15 | 2009-09-15 | Foundation treatment method for temporary construction subgrade on dredge fill soft foundation site |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498772A (en) * | 2011-11-07 | 2012-06-20 | 天津市北方园林生态科学技术研究所 | Method for in-situ improvement of dredger fill into soil for planting |
| CN103132416A (en) * | 2011-11-28 | 2013-06-05 | 四川蜀渝石油建筑安装工程有限责任公司 | Method of bamboo wood handling mollisol filling highway subgrade |
| CN102953308B (en) * | 2012-05-17 | 2014-11-26 | 湖南大学 | Construction method of bamboo wood reinforcement bidirectional enhanced part-cut and part-fill weak roadbed |
| CN102888794B (en) * | 2012-10-22 | 2015-09-09 | 安蓉建设总公司 | A kind of construction method of place mat road on debris flow soft base |
| CN103614955B (en) * | 2013-11-25 | 2016-03-16 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of processing method of soft soil foundation construction road |
| CN107419628A (en) * | 2017-04-14 | 2017-12-01 | 中交天津港湾工程研究院有限公司 | A kind of construction method of the rapid build road on reclaimed ground |
| CN110747839A (en) * | 2019-09-19 | 2020-02-04 | 国网浙江省电力有限公司建设分公司 | Construction method for backfilling on soft mud flat foundation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035860A (en) * | 1988-03-18 | 1989-09-27 | 天津石油化工公司炼油厂 | Enclosing treatment of soft-earth fundation for buildings and structures |
| CN2519819Y (en) * | 2001-11-22 | 2002-11-06 | 水利部交通部电力工业部南京水利科学研究院 | Solidified foundation with horizontal water drainage board |
| CN1560378A (en) * | 2004-03-09 | 2005-01-05 | 徐土龙 | Method of processing soft foundation by quick low position high vacuum layering pre-compacting consolidation |
| CN2895529Y (en) * | 2006-04-06 | 2007-05-02 | 沈阳建筑大学 | Composite foundation of combining raft and column and external wall type foundation |
-
2009
- 2009-09-15 CN CN 200910195707 patent/CN102021871B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035860A (en) * | 1988-03-18 | 1989-09-27 | 天津石油化工公司炼油厂 | Enclosing treatment of soft-earth fundation for buildings and structures |
| CN2519819Y (en) * | 2001-11-22 | 2002-11-06 | 水利部交通部电力工业部南京水利科学研究院 | Solidified foundation with horizontal water drainage board |
| CN1560378A (en) * | 2004-03-09 | 2005-01-05 | 徐土龙 | Method of processing soft foundation by quick low position high vacuum layering pre-compacting consolidation |
| CN2895529Y (en) * | 2006-04-06 | 2007-05-02 | 沈阳建筑大学 | Composite foundation of combining raft and column and external wall type foundation |
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| CN102021871A (en) | 2011-04-20 |
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Address after: 100029 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: China Petrochemical Group Corp. Patentee after: SINOPEC Shanghai Engineering Company Limited Address before: 100029 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Shanghai Engineering Co., Ltd. |