Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Vacuum combined preloading construction method for soft foundation section
The invention discloses a vacuum combined preloading construction method for a soft foundation section. The method comprises the following steps of: 1, forming a foundation treatment site; 2, inserting plastic drain boards; 3, laying a 50cm medium-coarse sand cushion layer; 4, processing and laying vacuum pipelines; 5, constructing a mixing wall; 6, covering a vacuum film and constructing a sealing ditch; 7, mounting air extraction equipment for vacuumizing; and 8, performing preloading and vacuum combined preloading. The vacuum preloading load reinforcement effect is obvious, the reinforcement can be finished at one time without grading, the time is saved, and foundation soil is not subjected to shear failure. The reinforcement effect is uniform, and the whole site is treated at the sametime. On the basis of vacuum preloading, a mound load is applied, so that the foundation bearing capacity can be further improved, and post-construction settlement is eliminated. The method is suitable for projects with the foundation bearing capacity requirement of more than 80KPa and the relatively high post-construction settlement requirement. The construction settlement is accelerated, and theconstruction period is shortened.
本发明公开了软基地段真空联合堆载预压施工方法，包括如下步骤：步骤1地基处理场地形成；步骤2插设塑料排水板；步骤3铺设50cm中粗砂垫层；步骤4真空管路的加工与敷设；步骤5搅拌墙施工；步骤6覆真空膜和密封沟施工；步骤7安装抽气设备抽真空；步骤8堆载及真空联合堆载预压；真空预压荷载加固效果明显，可一次完成，而不用分级进行，节约了时间，并且地基土不会发生剪切破坏。加固效果均匀，整个场地同时得到处理。在真空预压的基础上，再施加堆土荷载，能进一步提高地基承载力和消除工后沉降。适用于地基承载力要求大于80KPa、工后沉降要求较高的工程。既加快了施工沉降，又缩短了施工工期。
Vacuum combined preloading construction method for soft foundation section
The invention discloses a vacuum combined preloading construction method for a soft foundation section. The method comprises the following steps of: 1, forming a foundation treatment site; 2, inserting plastic drain boards; 3, laying a 50cm medium-coarse sand cushion layer; 4, processing and laying vacuum pipelines; 5, constructing a mixing wall; 6, covering a vacuum film and constructing a sealing ditch; 7, mounting air extraction equipment for vacuumizing; and 8, performing preloading and vacuum combined preloading. The vacuum preloading load reinforcement effect is obvious, the reinforcement can be finished at one time without grading, the time is saved, and foundation soil is not subjected to shear failure. The reinforcement effect is uniform, and the whole site is treated at the sametime. On the basis of vacuum preloading, a mound load is applied, so that the foundation bearing capacity can be further improved, and post-construction settlement is eliminated. The method is suitable for projects with the foundation bearing capacity requirement of more than 80KPa and the relatively high post-construction settlement requirement. The construction settlement is accelerated, and theconstruction period is shortened.
本发明公开了软基地段真空联合堆载预压施工方法，包括如下步骤：步骤1地基处理场地形成；步骤2插设塑料排水板；步骤3铺设50cm中粗砂垫层；步骤4真空管路的加工与敷设；步骤5搅拌墙施工；步骤6覆真空膜和密封沟施工；步骤7安装抽气设备抽真空；步骤8堆载及真空联合堆载预压；真空预压荷载加固效果明显，可一次完成，而不用分级进行，节约了时间，并且地基土不会发生剪切破坏。加固效果均匀，整个场地同时得到处理。在真空预压的基础上，再施加堆土荷载，能进一步提高地基承载力和消除工后沉降。适用于地基承载力要求大于80KPa、工后沉降要求较高的工程。既加快了施工沉降，又缩短了施工工期。
Vacuum combined preloading construction method for soft foundation section
软基地段真空联合堆载预压施工方法
TANG JIANYUAN (Autor:in) / YANG MIN (Autor:in) / LI SHILIN (Autor:in) / XIAO HUABING (Autor:in) / DU WEI (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
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