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A platform for research: civil engineering, architecture and urbanism
Construction method of strong-corrosion stratum buried pipe foundation
The invention discloses a construction method of a strong-corrosion stratum stratum buried pipe foundation. The construction method comprises the following steps that seepage prevention is carried outon a high-pressure-spraying anti-seepage wall around a foundation pit, slope excavation is carried out on a buried pipe to a base surface, temporary spraying protection is carried out on a slope, a drainage hole is punched, and water is pumped at the bottom of the foundation pit to lower the water level; holes are drilled to detect exposed stone buds on the surface of the substrate, and it is judged that the exposed part is bed rock or corrosion boulders; a bedrock exploring hole is sealed, and a cushion layer is constructed for the buried pipe foundation; after the corrosion boulders are removed, the buried pipe foundation is overall arranged, and cast-in-situ bored piles are additionally arranged in the area without the bedrock exposures; and the buried pipe and wrapping concrete are constructed on the buried pipe, the periphery of the buried pipe is backfilled with excavation materials, compaction is carried out layer by layer, and the surface layer is backfilled with planting soil. The exposed bedrock can be fully utilized as the foundation of pipe burying, engineering hidden danger caused by the existence of the bedrock boulders which are pseudo bedrock can be avoided, so that pile foundation arrangement is optimized, and the quality and safety of pipe burying engineering are guaranteed.
本发明一种强溶蚀地层埋管基础施工方法，包括以下步骤：对基坑周边高喷防渗墙防渗，对埋管放坡开挖至基底面，对边坡进行临时喷护、打设排水孔，在基坑底部抽水降低水位。钻孔对基底面出露的石芽进行查探，判断出露部分为基岩或溶蚀孤石。对基岩探孔进行封孔，对埋管基础施工垫层。排除溶蚀孤石后，对埋管基础进行统筹布置，在无基岩出露的区域增设钻孔灌注桩。施工埋管及其外包混凝土，埋管周边采用开挖料回填，并分层压实，表层采用种植土回填。本发明既可充分利用出露的基岩作为埋管的基础，又可避免孤石这一“伪基岩”的存在带来的工程隐患，从而优化桩基布置，确保埋管工程质量与安全。
Construction method of strong-corrosion stratum buried pipe foundation
The invention discloses a construction method of a strong-corrosion stratum stratum buried pipe foundation. The construction method comprises the following steps that seepage prevention is carried outon a high-pressure-spraying anti-seepage wall around a foundation pit, slope excavation is carried out on a buried pipe to a base surface, temporary spraying protection is carried out on a slope, a drainage hole is punched, and water is pumped at the bottom of the foundation pit to lower the water level; holes are drilled to detect exposed stone buds on the surface of the substrate, and it is judged that the exposed part is bed rock or corrosion boulders; a bedrock exploring hole is sealed, and a cushion layer is constructed for the buried pipe foundation; after the corrosion boulders are removed, the buried pipe foundation is overall arranged, and cast-in-situ bored piles are additionally arranged in the area without the bedrock exposures; and the buried pipe and wrapping concrete are constructed on the buried pipe, the periphery of the buried pipe is backfilled with excavation materials, compaction is carried out layer by layer, and the surface layer is backfilled with planting soil. The exposed bedrock can be fully utilized as the foundation of pipe burying, engineering hidden danger caused by the existence of the bedrock boulders which are pseudo bedrock can be avoided, so that pile foundation arrangement is optimized, and the quality and safety of pipe burying engineering are guaranteed.
本发明一种强溶蚀地层埋管基础施工方法，包括以下步骤：对基坑周边高喷防渗墙防渗，对埋管放坡开挖至基底面，对边坡进行临时喷护、打设排水孔，在基坑底部抽水降低水位。钻孔对基底面出露的石芽进行查探，判断出露部分为基岩或溶蚀孤石。对基岩探孔进行封孔，对埋管基础施工垫层。排除溶蚀孤石后，对埋管基础进行统筹布置，在无基岩出露的区域增设钻孔灌注桩。施工埋管及其外包混凝土，埋管周边采用开挖料回填，并分层压实，表层采用种植土回填。本发明既可充分利用出露的基岩作为埋管的基础，又可避免孤石这一“伪基岩”的存在带来的工程隐患，从而优化桩基布置，确保埋管工程质量与安全。
Construction method of strong-corrosion stratum buried pipe foundation
一种强溶蚀地层埋管基础施工方法
LAI YONG (author) / ZHANG YONGJIN (author) / BAI SHAOGUO (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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