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A platform for research: civil engineering, architecture and urbanism
Construction method for water-rich silt layer diaphragm wall precipitation auxiliary grooving
The invention relates to a construction method for water-rich silt layer diaphragm wall dewatering auxiliary grooving. The construction method comprises the steps that S1, a dewatering well is arranged and constructed; s2, dewatering is conducted on the dewatering well; and S3, construction of the underground diaphragm wall is conducted. According to the water-rich silt layer diaphragm wall dewatering auxiliary grooving construction method, after a diaphragm wall guide wall is completed, dewatering wells are arranged on the two sides of a diaphragm wall in a staggered mode, then dewatering operation is conducted, and diaphragm wall construction is conducted after dewatering is conducted to the designated depth. Compared with a traditional cement-soil mixing pile side wall reinforcing measure, according to the method, the height of a water head of a phreatic layer is reduced through a precipitation method, soil is solidified, the groove wall stability of a sandy soil layer is improved, hole collapse during underground diaphragm wall construction is prevented, concrete overconsumption is reduced, safety guarantee is provided for excavation of a deep foundation pit, the construction time is shortened, and the cost is reduced. The method can realize rapid and economic construction, and has the characteristics of economy, safety, environmental protection, short construction period and good application prospect.
本发明涉及一种富水粉砂层地连墙降水辅助成槽的施工方法，包括：步骤S1，降水井的布置与施工；步骤S2，对降水井进行降水；步骤S3，进行地连墙的施工。本富水粉砂层地连墙降水辅助成槽的施工方法，在完成地连墙导墙后，在地连墙两侧交错布置降水井，再进行降水作业，降水至指定深度后，进行地连墙施工。相比传统的水泥土搅拌桩侧壁加固措施，此方法通过降水的方法降低潜水层水头高度，使土体固结，提高砂性土层的槽壁稳定性，防止地连墙施工时塌孔，减少混凝土超耗，为深基坑的开挖提供安全保障，缩短施工时间，降低成本。能够实现快速经济地施工，具有经济、安全、环保、工期短和应用前景好的特点。
Construction method for water-rich silt layer diaphragm wall precipitation auxiliary grooving
The invention relates to a construction method for water-rich silt layer diaphragm wall dewatering auxiliary grooving. The construction method comprises the steps that S1, a dewatering well is arranged and constructed; s2, dewatering is conducted on the dewatering well; and S3, construction of the underground diaphragm wall is conducted. According to the water-rich silt layer diaphragm wall dewatering auxiliary grooving construction method, after a diaphragm wall guide wall is completed, dewatering wells are arranged on the two sides of a diaphragm wall in a staggered mode, then dewatering operation is conducted, and diaphragm wall construction is conducted after dewatering is conducted to the designated depth. Compared with a traditional cement-soil mixing pile side wall reinforcing measure, according to the method, the height of a water head of a phreatic layer is reduced through a precipitation method, soil is solidified, the groove wall stability of a sandy soil layer is improved, hole collapse during underground diaphragm wall construction is prevented, concrete overconsumption is reduced, safety guarantee is provided for excavation of a deep foundation pit, the construction time is shortened, and the cost is reduced. The method can realize rapid and economic construction, and has the characteristics of economy, safety, environmental protection, short construction period and good application prospect.
本发明涉及一种富水粉砂层地连墙降水辅助成槽的施工方法，包括：步骤S1，降水井的布置与施工；步骤S2，对降水井进行降水；步骤S3，进行地连墙的施工。本富水粉砂层地连墙降水辅助成槽的施工方法，在完成地连墙导墙后，在地连墙两侧交错布置降水井，再进行降水作业，降水至指定深度后，进行地连墙施工。相比传统的水泥土搅拌桩侧壁加固措施，此方法通过降水的方法降低潜水层水头高度，使土体固结，提高砂性土层的槽壁稳定性，防止地连墙施工时塌孔，减少混凝土超耗，为深基坑的开挖提供安全保障，缩短施工时间，降低成本。能够实现快速经济地施工，具有经济、安全、环保、工期短和应用前景好的特点。
Construction method for water-rich silt layer diaphragm wall precipitation auxiliary grooving
一种富水粉砂层地连墙降水辅助成槽的施工方法
YUAN WEIMING (author) / YE ZHONGHAI (author) / WANG JIYING (author) / WU PING (author) / DING KUNZHAN (author)
2023-08-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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