高壓旋噴地基加固施工方案方案

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《工程測量規(guī)范》（GB

前灘37#地塊

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qu

2.2

工程地質(zhì)及水文條件2.2.1

地形地貌

層號①1①2

名稱雜素填土

層厚(m)0.70~1.50

1.021.20~1.74

1.74

土層描述主要為混凝土地坪及建筑垃圾等土質(zhì)松散，含植物根莖等①3

浜填土

0.60~2.10

1.20

以灰色填土為主，土質(zhì)松散，含有機質(zhì)及植物根莖②

褐黃-灰黃色

含云母、氧化鐵斑點及含鐵錳質(zhì)結(jié)0.80~2.80

1.87粉質(zhì)粘土

核③③夾

灰色淤泥質(zhì)粉質(zhì)粘土灰色粘質(zhì)粉土

0.70~3.60

2.04

含云母、有機質(zhì)，夾薄層粉性土0.80~1.80

1.14

含云母、局部夾薄層粘性土④

灰色淤泥質(zhì)

含云母，偶夾薄層狀粉砂，屬高壓4.80~6.70

5.80粉質(zhì)粘土

縮性

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⑤1

灰色粘土

2.20~3.60

2.63

碎片⑤2a

灰色砂質(zhì)粉

5.90~12.1土

0

7.70

含云母、夾薄層粘性土及少量粉砂⑤2b⑤2c

灰色粉質(zhì)粘土

2.20~6.80

4.12夾砂質(zhì)粉土12.60~26.灰色粉砂

19.3300

含云母、有機質(zhì)，層中夾薄層砂粉含云母、石英與礦物質(zhì)，局部夾粘性土⑤3a

灰色粉質(zhì)粘

1.60~11.9土

0

5.49

含云母、有機質(zhì)，局部夾薄層粉土⑤3b⑦⑨

灰色粉質(zhì)粘5.40~10.2土

7.720夾砂質(zhì)粉土7.60~11.0灰色粉砂

9.310灰色粉砂

未鉆穿

含云母、有機質(zhì)，夾砂互層，具交錯層理含云母、石英、長石等含云母、石英、長石等礦物顆粒2.2.2

地下水3～3.7m，穩(wěn)定水位

0.6～0.81m。本場地為Ⅲ類環(huán)境，淺層地下水對混凝土有微腐蝕性，地2、(微)承壓水：本場地自然地面以下深度分別約

18.0m、33.0m

的第⑤2a層砂質(zhì)粉土、⑤2c

2.2.3

不良地質(zhì)條件

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3.3.1

技術(shù)準(zhǔn)備

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3.3.2

機械設(shè)備配備

SJBIIXPB6m

3.3.3

主要材料計劃

3.3.4

施工準(zhǔn)備階段注意事項

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處理障礙物

測量放樣

旋噴機就位

設(shè)備調(diào)試下旋噴管

旋噴提升

配送漿液

排污及出土