新湖路（北段）市政工程施工總結.doc

施 工 技 術 總 結

一、工程概況
新湖路（北段）市政工程，地處寶安新中心區。是由寶安區城市建設投資發展公司興建，寶安區市政工程設計院設計，深圳市全安建設監理有限公司監理，深圳市華僑建筑工程公司第一分公司承建。
施工起點樁號0+060（X22353.464、Y96064.100）、終點樁號0+728.15（X21902.083、Y96556.643），全長668.15m，工程預算造價2997萬元。
工程自1995年   月   日開始施工，但由于其他原因在中途于1996年   月   日暫停施工。之后在2000年   月   日由建設單位組織，重新簽訂承包合同，于2000年9月8日灰復動工，并在2002年10月1日按優良工程正式完成。
二、工程地質地貌特征
本工程施工路段原始地貌為潮間帶，后經人工圍成若干魚塘。塘底高程為0.00m～0.8m，水深約為1.0m，塘埂高程2.0m～3.5m。施工段內除塘埂及水域區外，其中在0+150處有一條橫穿路基的河道（咸水涌）。而0+060～0+120段全部被人工棄淤覆蓋，高程在2.3m～3.8m。
地質構造經鉆探揭示，自上而下分為：
1、人工填土：分布于塘埂、路堤和0+060～0+120段，厚度1.5m～3.8m。
2、淤泥：海相沉積，黑色、灰黑色、厚度在4.7m～7.9m之間，平均厚度6.3m左右。
3、沖洪積粘土層：位于淤泥層以下，黃褐色等雜色，可塑狀，平均厚度0.7m。
4、淤泥質中粗砂：最大厚度7.9m，呈飽和，松散至稍密狀態，灰色及灰黑色。
5、中粗砂層：黃灰、灰白色、飽和、中密狀態，全路段均有分布。具低壓縮性，使其強度大幅度提高，滿足路基下臥要求。
三、工程設計概況
1、本道路設計等級為城市一級次干道，設計時速40km/h，設計荷載等級為行車道BZZ-100型標準車。設計年限為交通量達到飽和狀態的所限15年，路面結構達到臨界使用狀態的年限30年。
2、道路設計為單幅路橫斷面，總路幅寬度50m，即停車道21m+人行道2×2m+綠化帶2×6.3m+外邊人行道2×6.2m。
3、道路地基處理分別采用換填塊石處理和插塑料排水板動力強夯固結法處理。處理范圍寬度60m。動力排水固結段地基處理后交工的面高程為2.6m，處理后剩余沉降量≤15cm，縱橫向100m沉降差≤10cm，交工面承載力≥100Kpa。換填塊石段地基的處理后交工面高程為3.1m。
4、路面設計為剛性路面，結構組合從上而下分別為：
a、C35商品砼混凝土面層，厚24cm。
b、6%水泥穩定石粉渣基層，厚20cm。
c、4%水泥穩定石粉渣底基層，厚15cm。
5、人行道設計為：
40cm×40cm×5cm彩色人行道板磚；
M7.5水泥砂漿找平層，厚2cm；
6%水泥石粉渣穩定層，厚15cm；
6、雨、污水管（渠）道設計：
a、雨水管采用D500（Ⅱ級）鋼筋承插式砼管，埋深1.9m～2.2m。
b、雨水渠為鋼筋砼底板、磚砌墻、預制鋼筋砼蓋板、結構尺寸為1.5m×1.5m、1.5m×1.4m、1.5m×1.2m。埋設深度在
vWorks summarization technology

First, project survey
New Rd (North) municipal works, the new center is located in Bao'an District. Bao'an District by the City Construction Investment Development Corporation building, Baoan District, Municipal Engineering Design Institute, Shenzhen City Construction Supervision Co., Ltd. All safety supervision, Shenzhen Overseas Chinese company's first office building construction.
Construction Stake from 0 +060 (X22353.464, Y96064.100), end Stake 0 +728.15 (X21902.083, Y96556.643), length 668.15m, project budget, cost 29.97 million yuan.
Project commencement date from 1995 years, but for other reasons in the middle of construction in 1996, closed years. Years after the date in 2000, organized by the construction unit to re-sign the contract, on September 8, 2000 re start ash, and October 1, 2002 formally completed by good works.
Second, engineering geological and geomorphological features
The construction section of the original landscape as the intertidal zone, the latter surrounded by a number of artificial ponds. Pool floor height is 0.00m ~ 0.8m, water depth of about 1.0m, pond ridge height 2.0m ~ 3.5m. In addition to paragraph mound construction and the waters outside the pond, which has an office in the 0 +150 across the embankment of the river (salt water Bay). And 0 +060 to 0 +120 section have all been abandoned artificial silt cover, elevation 2.3m ~ 3.8m.
Geological structure revealed by drilling, from the top down into:
1, artificial filling: distributed in the pond ridge, embankment and 0 +060 to 0 +120 section, the thickness of 1.5m ~ 3.8m.
2, silt: marine sediments, black, gray and black, thickness 4.7m ~ 7.9m, with an average thickness of about 6.3m.
3, Alluvial clay layer: in the mud layer below the mottled brown and so on, plastic-like, with an average thickness of 0.7m.
4, silty-sand: a maximum thickness of 7.9m, was saturated, loose to somewhat dense state, gray and dark gray.
5, the sand layer: yellow gray, gray, saturated, in the secret state, all sections were distributed. With low compression, greatly improved its strength, to meet the requirements under the Bed of lying.
3, Project Design
1, the design of the road rating for city-level sub-trunk roads, the design speed of 40km / h, the design load rating for a lane BZZ-100-type standard. Design life span of traffic to reach saturation of the 15-year limit, pavement structure used to achieve the critical state of life for 30 years.
2, road design, road cross section for the single frame, the total road width of 50m, or 21m + Parking Road sidewalk 2 × 2m + 2 × 6.3m + green belt outside the sidewalk 2 × 6.2m.
3, ground treatment were used for road fill rock processing and plastic drain dynamic compaction consolidation method. Processing range width 60m. Foundation Treatment of consolidation by drainage of surface elevation after the Labor Exchange for the 2.6m, treated the remaining settlement ≤ 15cm, vertical and horizontal to the 100m settlement difference ≤ 10cm, putting them face capacity ≥ 100Kpa. Replacement stone foundation of the treatment section of the Labor Exchange Elevation is 3.1m.
4, pavement design for the rigid pavement, structural composition from the top down are:
a, C35 Shangpin Tong concrete pavement, thickness 24cm.
b, 6% cement stabilized powder residue grass-roots, thick 20cm.
c, 4% powder slag cement stabilized sub-base thickness 15cm.
5, the sidewalk is designed to:
40cm × 40cm × 5cm color sidewalk tile;
M7.5 leveling layer of cement mortar, thickness 2cm;
6% slag cement powder, stable layer of thickness 15cm;
6, rain, sewer (drainage) Road Design:
a, rain water pipe with D500 (Ⅱ grade) reinforced concrete pipe socket type, depth of 1.9m ~ 2.2m.
b, storm water drains for the reinforced concrete floor, brick walls, precast reinforced concrete cover, structure, size of 1.5m × 1.5m, 1.5m × 1.4m, 1.5m × 1.2m. Laying depth
 

前往下載