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强夯施工后具体能产生什么样的作用呢?

网址:http://www.sddhfjx.cn/   发布日期:2021-08-19 关注次数:0
强夯法在我国诸多地基基础工程中较广应用,在机场、高速公路、厂区地基、港口等多中形式地基中产生较好的作用,那强夯施工后具体能产生什么样的作用呢?让我们一起来看看吧!
Dynamic compaction method is widely used in many foundation projects in China, and plays a good role in airport, expressway, plant foundation, port and other forms of foundation. What kind of role can dynamic compaction produce after construction? Let's have a look!
一、强夯施工减低地基土的压缩性:
1、 Reduction of compressibility of foundation soil by dynamic compaction:
1、地基土的压缩性表现在建筑物的沉降和差异沉降大;
1. The compressibility of foundation soil is reflected in the large settlement and differential settlement of buildings;
2、由于有填土或建筑物荷载,使地基产生固结沉降;
2. Consolidation settlement of foundation due to filling or building load;
强夯机出租
3、作用于建筑物基础的负摩擦力引起建筑物的沉降;
3. The negative friction acting on the building foundation causes the settlement of the building;
4、大范围地基的沉降和不均匀沉降;
4. Settlement and uneven settlement of large-scale foundation;
5、基坑开挖引起邻近地面沉降;
5. Adjacent ground settlement caused by foundation pit excavation;
由于降水地基产生固结沉降。地基的压缩性反映在地基土的压缩模量指标的大小。因此,需要采取措施以增加地基土的压缩模量,借以减少地基的沉降或不均匀沉降。
Due to precipitation, the foundation has consolidation settlement. The compressibility of the foundation is reflected in the compressibility modulus index of the foundation soil. Therefore, measures need to be taken to increase the compression modulus of foundation soil, so as to reduce the settlement or uneven settlement of foundation.
二、强夯施工增加地基土的抗剪切强度
2、 Dynamic compaction construction increases the shear strength of foundation soil
地基的剪切破坏表现在:
The shear failure of foundation is shown in:
1、建筑物的地基承载力不够;
1. The foundation bearing capacity of buildings is not enough;
2、由于偏心荷载及侧向土压力的作用使结构物失稳;
2. The structure is unstable due to the action of eccentric load and lateral earth pressure;
3、由于填土或建筑物荷载,使邻近地基产生隆起;
3. Uplift of adjacent foundation due to fill or building load;
4、土方开挖时边坡失稳;
4. Slope instability during earthwork excavation;
基坑开挖时坑底隆起。地基的剪切破坏反映在地基土的抗剪强度不足,因此,为了不使剪切破坏,就需要山东恒鼎强夯公司采取措施以增加地基土的抗剪强度。
The pit bottom heaves during foundation pit excavation. The shear failure of the foundation is reflected in the insufficient shear strength of the foundation soil. Therefore, in order to avoid shear failure, Shandong Hengding dynamic compaction company needs to take measures to increase the shear strength of the foundation soil.
三、强夯施工改良地基土的动力特性:
3、 Dynamic characteristics of improved foundation soil by dynamic compaction:
地基土的动力特性表现在地震时饱和松散粉细砂(包括部分粉土)将产生液化;
The dynamic characteristics of foundation soil are that saturated loose silty fine sand (including some silt) will produce liquefaction during earthquake;
由于交通荷载或打桩等原因,使邻近地基产生振动下沉。为此,需要采取措施以防地基液化,并改良其振动特性以加强地基的抗震性能。
Vibration subsidence of adjacent foundation due to traffic load or piling. Therefore, it is necessary to take measures to prevent foundation liquefaction and improve its vibration characteristics to strengthen the seismic performance of the foundation.
四、强夯施工改良地基土的透水特性:
4、 Permeability characteristics of foundation soil improved by dynamic compaction:
1、地基土的透水性表现在堤坝等基础产生的地基渗漏;
1. The permeability of foundation soil is reflected in the foundation leakage caused by embankment and other foundations;
2、基坑开挖工程中,因土层内夹薄层粉砂或粉土而产生流砂和管涌。
2. In the excavation of foundation pit, quicksand and piping are produced due to the thin layer of silt or silt in the soil layer.
五、强夯施工改良特殊土的不良地基特性:主要是或减少黄土的湿陷性和膨胀土的胀缩性等。
5、 The bad foundation characteristics of special soil improved by dynamic compaction construction are mainly to eliminate or reduce the collapsibility of loess and the expansion and contraction of expansive soil.
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