详情描述

The project is located south of Wuhuan Road in Xuzhou High-Tech Industrial Development Zone, west of National Highway 206, and east of the Jintpu Railway. The site is currently undergoing backfilling and has reached the "Three Connections and One Leveling" requirements. The design employs compaction methods for ground treatment. The northeast part of the factory area requires compaction treatment of the foundation to meet the basic design requirements.

Compaction requirements
(1) After reinforcement, inspect the reinforced foundation; if the inspection results do not meet design and specification requirements, take appropriate action or add additional compaction.
(2) Strictly adhere to the construction design, ensuring no missed or insufficient compaction.
(3) When the distance from the compaction site to existing buildings is less than 20 meters, treatment measures should be taken in accordance with the requirements of the monitoring unit.
(4) Single Point Compaction Construction Steps
Prior to the single-point compaction work, draw the layout of compaction points for each section according to the design principles. The steps for single-point compaction are as follows:
Clear and level the construction site.
② Mark and count the compaction points, and measure the site elevation.
③The compactor is positioned, and the hammer is placed over the compaction point.
④ Measure the pre-compaction and post-compaction elevation.
⑤ Hoist the tamper to the predetermined height, activate the detaching device, allowing the tamper to fall freely, lower the hoist, and measure the height of the tamper's top; if the tamper is found to be off-balance due to the inclined bottom of the pit, the pit bottom should be leveled promptly.
⑥ Repeat the previous step, completing the tamping at a tamping point according to the specified number of blows and control standards; when the tamping pit is too deep, lifting the hammer becomes difficult, no obvious upheaval occurs, and it has not yet reached the control standard, it is advisable to backfill the pit to the level of the pit top and continue the tamping.
Repeat steps 3 to 6, changing the compaction point, to complete one full round of compaction for all points.
⑧ Level the foundation pits with a bulldozer and measure the site's elevation.
After the specified time intervals, sequentially complete all the tamping passes as described above; finally, use low-energy full tamping to compact the loose soil on the ground surface, and measure the elevation of the ground after tamping.
Compaction construction process
Construction Preparation → Site Grading → Compaction Point Layout → Counting Points Compaction Construction → Counting Second Points Compaction Construction → Leveling → Full Compaction → Leveling → Testing and Inspection