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A platform for research: civil engineering, architecture and urbanism
Hole-forming construction method for fender post hard rock stratum diaphragm wall and diaphragm wall construction method
The invention discloses a fender post hard rock stratum diaphragm wall hole-forming construction method and a diaphragm wall construction method. The fender post hard rock stratum diaphragm wall hole-forming construction method comprises the following steps that 1, a guide wall is excavated; step 2, slurry preparation and circulation; step 3, trial drilling of a down-the-hole hammer; the air compressor is started to work, then the down-the-hole hammer is started, the down-the-hole hammer rotates, vibrates and sinks, along with the increase of the hole depth, the condition that the pile hole turns out of mud is observed, and the working number of the air compressors is increased; 5, when the depth of the pile hole is larger than the length of a drill rod of the down-the-hole hammer, a drill rod needs to be newly added, the drill rod is not suitable to be added every time, a drill bit is lifted firstly, then an air compressor is reserved for working, other air compressors are turned off, the newly added drill rod is connected with the top of the original drill rod, drilling continues till a first pile position end hole is formed, and a main hole is obtained; and step 6, checking and accepting the slotted hole. The construction method has the advantages of being high in hole forming efficiency, good in hole forming quality, short in time and low in cost.
本发明公开了一种围护桩硬岩层地连墙成孔施工工法及地连墙施工工法，围护桩硬岩层地连墙成孔施工工法如下：步骤1，导墙开挖；步骤2，泥浆制备及循环；步骤3，潜孔锤试打；步骤4，潜孔锤打桩：启动一台空压机工作，接着启动潜孔锤，潜孔锤旋转振动下沉，随着孔深增大，观察桩孔翻出泥浆情况，增加空压机工作数量；当桩孔深度大于潜孔锤的钻杆长度时，需新增钻杆，每次增加钻杆不宜超过一根，先将钻头提起，接着留一台空压机工作，关闭其他空压机，将新增钻杆与原钻杆的顶部连接，继续钻进，直至第一个桩位终孔，得到主孔，步骤5，冲击钻机修孔扩孔；步骤6，槽孔验收。本申请的施工工法具有成孔效率高、成孔质量好、时间短且成本低的优点。
Hole-forming construction method for fender post hard rock stratum diaphragm wall and diaphragm wall construction method
The invention discloses a fender post hard rock stratum diaphragm wall hole-forming construction method and a diaphragm wall construction method. The fender post hard rock stratum diaphragm wall hole-forming construction method comprises the following steps that 1, a guide wall is excavated; step 2, slurry preparation and circulation; step 3, trial drilling of a down-the-hole hammer; the air compressor is started to work, then the down-the-hole hammer is started, the down-the-hole hammer rotates, vibrates and sinks, along with the increase of the hole depth, the condition that the pile hole turns out of mud is observed, and the working number of the air compressors is increased; 5, when the depth of the pile hole is larger than the length of a drill rod of the down-the-hole hammer, a drill rod needs to be newly added, the drill rod is not suitable to be added every time, a drill bit is lifted firstly, then an air compressor is reserved for working, other air compressors are turned off, the newly added drill rod is connected with the top of the original drill rod, drilling continues till a first pile position end hole is formed, and a main hole is obtained; and step 6, checking and accepting the slotted hole. The construction method has the advantages of being high in hole forming efficiency, good in hole forming quality, short in time and low in cost.
本发明公开了一种围护桩硬岩层地连墙成孔施工工法及地连墙施工工法，围护桩硬岩层地连墙成孔施工工法如下：步骤1，导墙开挖；步骤2，泥浆制备及循环；步骤3，潜孔锤试打；步骤4，潜孔锤打桩：启动一台空压机工作，接着启动潜孔锤，潜孔锤旋转振动下沉，随着孔深增大，观察桩孔翻出泥浆情况，增加空压机工作数量；当桩孔深度大于潜孔锤的钻杆长度时，需新增钻杆，每次增加钻杆不宜超过一根，先将钻头提起，接着留一台空压机工作，关闭其他空压机，将新增钻杆与原钻杆的顶部连接，继续钻进，直至第一个桩位终孔，得到主孔，步骤5，冲击钻机修孔扩孔；步骤6，槽孔验收。本申请的施工工法具有成孔效率高、成孔质量好、时间短且成本低的优点。
Hole-forming construction method for fender post hard rock stratum diaphragm wall and diaphragm wall construction method
一种围护桩硬岩层地连墙成孔施工工法及地连墙施工工法
LI JIAHONG (author) / ZHANG ZHENG (author) / SU JIAYONG (author) / SONG ZENGYANG (author) / ZHUGE YUNCHEN (author) / TAN DONGSHENG (author) / TIAN GANG (author) / ZHOU LI (author)
2023-03-31
Patent
Electronic Resource
Chinese
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