A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a rock stratum steel casing inserting and driving method. A percussion drill, a temporary steel casing, a steel casing for formal construction, plain fill or sandy soil, a rock stratum, a common soil layer and the like are included. Before the formal construction steel casing is inserted, a percussion drill is used for punching, and after the hole penetrates through a rock stratum and enters a stable soil layer, a temporary steel casing is inserted to the punching depth; and after completion, inserting and hitting the formal construction steel casing to a stable soil layer. And after all the steps are completed, plain filling soil or sandy soil is used for filling and compacting the space between the two steel casings, and drilling pile construction can be started after re-testing is qualified. According to the rock stratum steel casing inserting and hitting method, starting from the construction environment of the surface rock stratum, the problems that under the condition of the rock stratum, direct inserting and hitting are likely to cause edge curling of a bottom opening of a steel casing, sudden change of the inner diameter and the like are solved through the method of firstly punching and then inserting and hitting the steel casing; or other auxiliary measures are adopted to increase time and economic cost, the construction efficiency and quality are improved, the process is simple, the cost is low, and the quality risk is small.
本申请涉及一种岩质地层钢护筒插打方法，包括冲击钻机、临时钢护筒、正式施工用钢护筒、素填土或砂性土、岩层、一般土层等。插打正式施工用钢护筒前，先用冲击钻机冲孔，孔深穿过岩层进入稳定土层后插打临时钢护筒至冲孔深度；完成后，插打正式施工用钢护筒至稳定土层。均完成后，两钢护筒间用素填土或砂性土填充密实，复测合格后，即可开始钻孔桩施工。本申请提供了一种岩质地层钢护筒插打方法，从表面岩质地层的施工环境出发，通过先冲孔再插打钢护筒的方法，解决了岩质地层条件下直接插打可能造成钢护筒底口卷边和内径突变等情况的发生，或采用其它辅助措施增加时间和经济成本的情况，提高了施工效率和质量，过程简单，成本较低，质量风险小。
The invention relates to a rock stratum steel casing inserting and driving method. A percussion drill, a temporary steel casing, a steel casing for formal construction, plain fill or sandy soil, a rock stratum, a common soil layer and the like are included. Before the formal construction steel casing is inserted, a percussion drill is used for punching, and after the hole penetrates through a rock stratum and enters a stable soil layer, a temporary steel casing is inserted to the punching depth; and after completion, inserting and hitting the formal construction steel casing to a stable soil layer. And after all the steps are completed, plain filling soil or sandy soil is used for filling and compacting the space between the two steel casings, and drilling pile construction can be started after re-testing is qualified. According to the rock stratum steel casing inserting and hitting method, starting from the construction environment of the surface rock stratum, the problems that under the condition of the rock stratum, direct inserting and hitting are likely to cause edge curling of a bottom opening of a steel casing, sudden change of the inner diameter and the like are solved through the method of firstly punching and then inserting and hitting the steel casing; or other auxiliary measures are adopted to increase time and economic cost, the construction efficiency and quality are improved, the process is simple, the cost is low, and the quality risk is small.
本申请涉及一种岩质地层钢护筒插打方法，包括冲击钻机、临时钢护筒、正式施工用钢护筒、素填土或砂性土、岩层、一般土层等。插打正式施工用钢护筒前，先用冲击钻机冲孔，孔深穿过岩层进入稳定土层后插打临时钢护筒至冲孔深度；完成后，插打正式施工用钢护筒至稳定土层。均完成后，两钢护筒间用素填土或砂性土填充密实，复测合格后，即可开始钻孔桩施工。本申请提供了一种岩质地层钢护筒插打方法，从表面岩质地层的施工环境出发，通过先冲孔再插打钢护筒的方法，解决了岩质地层条件下直接插打可能造成钢护筒底口卷边和内径突变等情况的发生，或采用其它辅助措施增加时间和经济成本的情况，提高了施工效率和质量，过程简单，成本较低，质量风险小。
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